<PAGE>
 
                                                                   EXHIBIT 10.42



                                TRUST INDENTURE


                             DATED AUGUST 1, 1997



                                    BETWEEN



                              LA-MAN CORPORATION



                                      AND



                     SOUTHTRUST BANK, NATIONAL ASSOCIATION



            ======================================================

                                   REGARDING
                                  $2,500,000
                   VARIABLE/FIXED RATE CREDIT ENHANCED NOTES

            ====================================================== 


________________________________________________________________________________


    THIS TRUST INDENTURE WAS PREPARED BY WILLIAM D. KING, FOLEY & LARDNER,
  THE GREENLEAF BUILDING, 200 LAURA STREET, JACKSONVILLE, FLORIDA 32202-3527

________________________________________________________________________________
<PAGE>
 
                                TRUST INDENTURE



                               TABLE OF CONTENTS

             This Table of Contents is not a part of this Indenture
                   and is only for convenience of reference)

<TABLE>
<CAPTION>
                                                                            PAGE
<S>                                                                         <C>
PARTIES....................................................................... 1
RECITALS...................................................................... 1
GRANTING CLAUSES.............................................................. 2

                                   ARTICLE I

                        DEFINITIONS AND OTHER PROVISIONS
                            OF GENERAL APPLICATION
                        --------------------------------

SECTION 1.1     Definitions................................................... 2
SECTION 1.2     Acts of Noteholders...........................................10
SECTION 1.3     Form and Contents of Documents Delivered to Trustee...........11
SECTION 1.4     Compliance Certificates and Opinions..........................12
SECTION 1.5     Effect of Headings and Table of Contents......................13
SECTION 1.6     Date of Indenture.............................................13
SECTION 1.7     Enforceability................................................13
SECTION 1.8     Governing Law.................................................13
SECTION 1.9     Counterparts..................................................13
SECTION 1.10    Notices.......................................................13
SECTION 1.11    Notices to Noteholders; Waiver................................15
SECTION 1.12    Concerning the Credit Obligor and the Letter of Credit........15
SECTION 1.13    Notice to Rating Agencies.....................................15
SECTION 1.14    Successors and Assigns........................................16
SECTION 1.15    Benefits of Indenture.........................................16



                                  ARTICLE II

                              GRANTING CLAUSES................................16
                              ----------------  
</TABLE> 

                                       i
<PAGE>
 
<TABLE> 
<CAPTION> 
                                  ARTICLE III

                                   THE NOTES
                                   ---------

<S>                                                                           <C>
SECTION 3.1     General Terms..............................................   17
SECTION 3.2     Variable Rate..............................................   19
SECTION 3.3     Fixed Rate.................................................   20
SECTION 3.4     Optional Tender............................................   21
SECTION 3.5     Mandatory Tender...........................................   23
SECTION 3.6     Procedures for Purchase and Remarketing of Notes; Delivery.   26
SECTION 3.7     Execution, Authentication, Delivery and Dating.............   29
SECTION 3.8     Temporary Notes............................................   29
SECTION 3.9     Authentication and Delivery of Notes to Original Purchasers   30
SECTION 3.10    Letter of Credit...........................................   30
SECTION 3.11    Additional Credit Enhancement..............................   32
 

                                   ARTICLE IV

                      REGISTRATION, BOOK-ENTRY SYSTEM, AND
                     GENERAL PROVISIONS REGARDING THE NOTES
                     --------------------------------------
 
SECTION 4.1     Registration of Notes......................................   32
SECTION 4.2     Book-Entry System..........................................   32
SECTION 4.3     Discontinuation of Book-Entry System; Registration,
                Transfer and Exchange of Notes; Replacement of Mutilated,
                Lost, Destroyed or Stolen Notes............................   35
SECTION 4.4     Payment of Interest on Notes; Interest Rights Preserved....   37
SECTION 4.5     Persons Deemed Owners......................................   37
SECTION 4.6     Paying Agent...............................................   38
SECTION 4.7     Payments Due on Non-Business Days..........................   38
SECTION 4.8     Cancellation...............................................   38


                                   ARTICLE V

                              REDEMPTION OF NOTES
                              -------------------

SECTION 5.1     When Notes Are Subject to Redemption.......................   38
SECTION 5.2     Election to Redeem; Notice to Securities Depository and
                Trustee....................................................   38
SECTION 5.3     Selection of Notes to be Redeemed..........................   39
SECTION 5.4     Notice of Redemption.......................................   39
SECTION 5.5     Deposit of Redemption Price................................   40
SECTION 5.6     Notes Payable on Redemption Date...........................   40
</TABLE>

                                      ii
<PAGE>
 
<TABLE>
<S>                                                                           <C>
SECTION 5.7    Notes Redeemed in Part.....................................    41


                                  ARTICLE VI

                       APPLICATION OF PROCEEDS OF NOTES
                       --------------------------------

SECTION 6.1    Application of Proceeds....................................    41
SECTION 6.2    Proceeds Fund; Disbursements...............................    41

                                  ARTICLE VII

                                   REVENUES
                                   --------

SECTION 7.1    Note Fund and Letter of Credit Draws.......................    42
SECTION 7.2    Note Purchase Fund.........................................    43
SECTION 7.3    Money for Note Payments to be Held in Trust; Repayment of
               Unclaimed Money............................................    45
SECTION 7.4    Investment of Special Funds................................    46

                                 ARTICLE VIII

                         REPRESENTATIONS AND COVENANTS
                         -----------------------------

SECTION 8.1    General Representations....................................    46
SECTION 8.2    Payment of Debt Service and Purchase of Tendered Notes.....    48
SECTION 8.3    Indemnity of Trustee.......................................    48
SECTION 8.4    Obligations of Issuer Unconditional........................    49
SECTION 8.5    General Covenants of the Issuer............................    49
SECTION 8.6    Appointment of Successor Trustee...........................    50
SECTION 8.7    Further Assurances.........................................    50


                                  ARTICLE IX

                        EVENTS OF DEFAULT AND REMEDIES
                        ------------------------------

SECTION 9.1    Events of Default..........................................    51
SECTION 9.2    Acceleration of Maturity; Rescission and Annulment;
               Exercise of Remedies.......................................    52
SECTION 9.3    Rights and Remedies of Trustee in the Event of Bankruptcy,
               and the Occurrence of Similar Events Regarding the Issuer..    53
SECTION 9.4    Subrogation Rights of Credit Obligor.......................    54
</TABLE>

                                      iii
<PAGE>
 
<TABLE> 
<S>                                                                           <C>
SECTION 9.5     Application of Money Collected.............................   54
SECTION 9.6     Trustee May Enforce Claims without Possession of Notes.....   55
SECTION 9.7     Limitation on Suits by Holders.............................   55
SECTION 9.8     Unconditional Right of Noteholders to Receive Principal,        
                Premium and Interest.......................................   56
SECTION 9.9     Restoration of Positions...................................   56
SECTION 9.10    Rights and Remedies Cumulative.............................   56
SECTION 9.11    Delay or Omission Not Waiver...............................   57
SECTION 9.12    Control by Credit Obligor and Noteholders..................   57
SECTION 9.13    Waiver of Past Defaults....................................   57
SECTION 9.14    Waiver of Appraisement and Other Laws......................   58
SECTION 9.15    Suits to Protect the Trust Estate..........................   58
SECTION 9.16    Remedies Subject to Applicable Law.........................   59
 

                                   ARTICLE X

                                  THE TRUSTEE
                                  -----------

SECTION 10.1    Certain Duties and Responsibilities........................   59
SECTION 10.2    Notice of Defaults.........................................   60
SECTION 10.3    Certain Rights of Trustee..................................   60
SECTION 10.4    Not Responsible for Recitals...............................   62
SECTION 10.5    May Hold Notes.............................................   62
SECTION 10.6    Money Held in Trust........................................   62
SECTION 10.7    Compensation and Reimbursement.............................   62
SECTION 10.8    Eligibility of Trustee; Appointment of Co-Trustee..........   63
SECTION 10.9    Resignation and Removal; Appointment of Successor..........   64
SECTION 10.10   Acceptance of Appointment by Successor.....................   65
SECTION 10.11   Merger, Conversion, Consolidation or Succession to Business   65
 

                                  ARTICLE XI

          SUPPLEMENTAL INDENTURES AND AMENDMENTS OF LETTER OF CREDIT
          ----------------------------------------------------------

SECTION 11.1    Supplemental Indentures Without Consent of Noteholders.....   66
SECTION 11.2    Supplemental Indentures With Consent of Noteholders........   67
SECTION 11.3    Discretion of Trustee; Acts of Noteholders.................   68
SECTION 11.4    Consent of Credit Obligor..................................   68
SECTION 11.5    Execution of Supplemental Indentures.......................   69
SECTION 11.6    Effect of Supplemental Indentures..........................   69
SECTION 11.7    Reference in Notes to Supplemental Indentures..............   69
SECTION 11.8    Amendment of Letter of Credit..............................   69
</TABLE>

                                      iv
<PAGE>
 
<TABLE> 
                                  ARTICLE XII

                             THE REMARKETING AGENT
                             AND THE TENDER AGENT
                             --------------------

<S>                                                                        <C>
SECTION 12.1    Temarketing Agent.........................................    70
SECTION 12.2    Tender Agent..............................................    71


                                 ARTICLE XIII

                                  DEFEASANCE
                                  ----------

SECTION 13.1    Payment of Indebtedness; Satisfaction and Discharge of
                Indenture.................................................    72
SECTION 13.2    Trust for Payment of Debt Service.........................    73




TESTIMONIUM...............................................................    73
SIGNATURES................................................................    74
ACKNOWLEDGEMENTS.......................................................... 75-76
</TABLE> 

EXHIBIT A:  Form of Notes
EXHIBIT B:  Form of Requisition
EXHIBIT C:  Form of Optional Tender Notice

                                       v
<PAGE>
 
                                TRUST INDENTURE
                                ---------------

     THIS TRUST INDENTURE dated August 1, 1997 is entered into by LA-MAN
CORPORATION, a Nevada corporation (the "Issuer"), and SOUTHTRUST BANK,
NATIONAL ASSOCIATION, a national banking association, having its principal
office in Birmingham, Alabama, and with a corporate trust office in Ft.
Lauderdale, Florida (the "Trustee").

                                   RECITALS
                                   --------

     The Issuer has duly authorized, executed and delivered this Indenture and
has duly authorized the creation, execution and delivery pursuant hereto of
Variable/Fixed Rate Credit Enhanced Notes dated the date of delivery and payment
therefor (the "Notes") to provide financing for various corporate purposes.

     As security for the payment of the Notes, the Issuer will cause SouthTrust
Bank, National Association (in its capacity as issuer of the initial Letter of
Credit referred to below, the "Credit Obligor") to issue an irrevocable letter
of credit in favor of the Trustee in the amount of (i) the aggregate principal
amount of the Notes, to enable the Trustee to pay the principal amount of the
Notes when due and to pay the principal portion of the purchase price of Notes
tendered (or deemed tendered) for purchase, plus (ii) interest on the Notes for
a period of 56 days at the rate of 18% per annum, to enable the Trustee to pay
interest on the Notes when due and to pay the interest portion of the purchase
price of Notes tendered (or deemed tendered) for purchase.  The initial letter
of credit to be delivered to the Trustee and any substitute letter of credit
delivered to the Trustee pursuant to this Indenture are herein referred to as
the "Letter of Credit".  The initial Letter of Credit is issued pursuant to
certain credit and security agreements among the Credit Obligor, the Issuer, and
certain persons related to the Issuer, which evidence, guarantee or provide
security for the obligations of the Issuer to reimburse the Credit Obligor for
draws under the Letter of Credit and the observance and performance of various
agreements of the Issuer and related persons with respect thereto (collectively,
the "Credit Documents").

     All things have been done which are necessary to make the Notes, when
executed by the Issuer and authenticated and delivered by the Trustee hereunder,
the valid obligations of the Issuer, and to constitute this Indenture a valid
trust indenture for the security of the Notes, in accordance with the terms of
the Notes and this Indenture.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     It is hereby covenanted and declared that all of the Notes are to be
authenticated and delivered and the property subject to this Indenture is to be
held and applied by the Trustee, subject to the covenants, conditions and trusts
hereinafter set forth, and the Issuer does hereby covenant and agree to and with
the Trustee, for the equal and proportionate benefit (except as otherwise
expressly provided herein) of all Holders (as hereinafter defined) of the Notes,
as follows:
<PAGE>
 
                                   ARTICLE I

                       DEFINITIONS AND OTHER PROVISIONS
                            OF GENERAL APPLICATION
                       ---------------------------------

     SECTION 1.1    DEFINITIONS
                    -----------

     For all purposes of this Indenture, except as otherwise expressly provided
or unless the context otherwise requires:

          (1)  The terms defined in this Article shall have the meanings
     assigned in this Article. Singular terms shall include the plural as well
     as the singular, and vice versa. Any pronoun shall include both singular
     and plural and cover all genders.

          (2)  All accounting terms not otherwise defined herein have the
     meanings assigned to them, and all computations herein provided for shall
     be made, in accordance with generally accepted accounting principles.  All
     references herein to "generally accepted accounting principles" refer to
     such principles as they exist at the date of application thereof.

          (3)  All references in this instrument to designated "Articles",
     "Sections" and other subdivisions are to the designated Articles, Sections
     and subdivisions of this instrument as originally executed.

          (4)  The terms "herein", "hereof" and "hereunder" and other words of
     similar import refer to this Indenture as a whole and not to any particular
     Article, Section or other subdivision.

          (5)  The term person shall include any individual, corporation,
     general or limited partnership, limited liability company or partnership,
     joint venture, association, trust, unincorporated organization and any
     government or any agency or political subdivision thereof.

     Act, when used with respect to any Noteholder, has the meaning stated in
     ---                                                                     
Section 1.2.

     Act of Bankruptcy shall mean the filing of a petition in bankruptcy (or the
     -----------------                                                          
other commencement of a bankruptcy or similar proceeding) by or against the
Issuer under any applicable bankruptcy, insolvency, reorganization, or similar
law, now or hereafter in effect.

     Affiliate of any specified person shall mean any other person directly or
     ---------                                                                
indirectly controlling or controlled by or under direct or indirect common
control with such specified person.  For purposes of this definition, "control"
when used with respect to any specified person means the power to direct the
management and policies of such person, directly or

                                       2
<PAGE>
 
indirectly, whether through the ownership of voting securities, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

     Authorized Denomination or Denominations means with respect to all Notes
     ----------------------------------------                                
the amount of $100,000 and any integral multiple of $5,000 in excess thereof.

     Authorized Issuer Representative shall mean any officer of the Issuer or
     --------------------------------                                        
any agent of the Issuer authorized by the Issuer to act as "Authorized Issuer
Representative" for purposes of this Indenture and identified as such in writing
delivered to the Trustee.

     Beneficial Owner shall have the meaning set forth in Section 4.2.
     ----------------                                                 

     Board of Directors shall mean the board of directors of the Issuer as
     ------------------                                                   
constituted from time to time.

     Book-Entry System means a book-entry only system of evidence of purchase
     -----------------                                                       
and transfer of beneficial ownership interests in the Notes.

     Business Day shall mean any day other than (1) a Saturday, a Sunday or (2)
     ------------                                                              
a day on which the payment system of the Federal Reserve System is not
operational, or (3) a day on which banking institutions are required or
authorized to remain closed in any of the following locations: (i) the city in
which the Designated Office of the Trustee is located, (ii) the city in which
the principal office of the Remarketing Agent is located, (iii) the city in
which the office of the Credit Obligor where drawings under the Letter of Credit
are to be made is located, or (iv) the City of New York, New York.

     Conversion Date shall mean the first day of any Fixed Rate Period.
     ---------------                                                   

     Credit Documents shall mean collectively that certain Credit and Security
     ----------------                                                         
Agreement dated the date of execution and delivery thereof between the Issuer
and the Credit Obligor, and all agreements, documents, guaranties, instruments,
notes, notices, and other writings executed and delivered by the Issuer or any
other person or persons which evidence, guarantee or provide security for the
obligations of the Issuer with respect to the Letter of Credit, including any
amendments or supplements to any thereof from time to time entered into pursuant
to the applicable provisions thereof, until a Substitute Letter of Credit shall
have been accepted by the Trustee, and thereafter "Credit Documents" shall mean
collectively all agreements, documents, guaranties, instruments, notes, notices,
and other writings which evidence, guarantee or provide security for the
obligations of the Issuer with respect to such Substitute Letter of Credit.

     Credit Obligor shall mean SouthTrust Bank, National Association, a national
     --------------                                                             
banking association (in its capacity as issuer of the Letter of Credit), and its
successors and assigns, until a Substitute Letter of Credit shall have been
accepted by the Trustee, and thereafter "Credit Obligor" shall mean the issuer
of such Substitute Letter of Credit, and its successors and assigns.

                                       3
<PAGE>
 
     Credit Obligor Indebtedness shall mean all indebtedness or obligations of
     ---------------------------                                              
the Issuer to the Credit Obligor under the Credit Documents including without
limitation (i) the Issuer's obligation to reimburse the Credit Obligor for draws
made under the Letter of Credit and (ii) the Issuer's obligation to pay fees and
charges for the issuance and continuation of the Letter of Credit.

     Credit Obligor Insolvency Date shall mean the date on which the Credit
     ------------------------------                                        
Obligor notifies the Trustee in writing, or the date on which the Trustee is
notified in writing by the Issuer, or any Governmental Authority, that (i) a
receiver or conservator of the Credit Obligor or of any of the respective
properties or assets thereof shall have been appointed by any Governmental
Authority, or (ii) possession of the property and business of the Credit Obligor
shall have been taken by any Governmental Authority, or (iii) the Credit Obligor
shall have taken advantage of any reorganization, liquidation or dissolution law
or statute, or (iv) if corporate action shall have been taken by the Credit
Obligor for the purpose of effecting any of the foregoing.

     Debt Service shall mean the principal of, premium (if any) and interest
     ------------                                                           
payable on the Notes.

     Defaulted Interest shall have the meaning stated in Section 4.4.
     ------------------                                              

     Designated Office of the Trustee shall mean the office where the Trustee
     --------------------------------                                        
maintains its corporate trust office in Ft. Lauderdale, Florida, or such other
office as shall be designated by the Trustee by written notice to the Issuer,
the Credit Obligor and the Holders of the Notes.

     Direct Participant or Direct Participants means securities brokers and
     ------------------    -------------------                             
dealers, banks, trust companies and clearing corporations which have access to
the Book-Entry System.

     Event of Default shall have the meaning stated in Article IX.  An Event of
     ----------------                                                         
Default shall "exist" if an Event of Default shall have occurred and be
continuing.

     Existing Letter of Credit means the Letter of Credit held by the Trustee at
     -------------------------                                                  
the time a Substitute Letter of Credit is delivered to the Trustee.

     Federal Securities shall mean any of the following so long as the same are
     ------------------                                                        
not subject to prepayment or redemption at the option of the issuer thereof:
direct obligations of, or obligations the timely payment of the principal of and
interest on which is fully guaranteed by, the United States of America.

     Financing Documents shall mean collectively the Notes, the Indenture, the
     -------------------                                                      
Credit Documents, the Remarketing Agreement and the Letter of Credit.

     Fixed Rate shall mean the fixed interest rate borne by the Notes during a
     ----------                                                               
Fixed Rate Period, more particularly described in Section 3.3.

                                       4
<PAGE>
 
     Fixed Rate Interest Payment Date shall mean a date on which interest
     --------------------------------                                    
calculated according to the Fixed Rate is payable on the Notes, more
particularly described in Section 3.1.(i)

     Fixed Rate Period shall mean a period specified by the Issuer during which
     -----------------                                                         
the Notes shall bear interest at a fixed rate per annum, more particularly
described in Section 3.3.

     Fully Paid, (i) when used with respect to Indenture Indebtedness, shall
     ----------                                                             
have the meaning stated in Section 13.1, and (ii) when used with respect to
Credit Obligor Indebtedness, shall mean that all indebtedness under the Credit
Documents has been paid.

     Governmental Authority shall mean any federal, state, county, municipal, or
     ----------------------                                                     
other government, domestic or foreign, and any agency, authority, department,
commission, bureau, board, court or other instrumentality thereof, having
jurisdiction in the premises.

     Holder when used with respect to any Note shall mean the Noteholder with
     ------                                                                  
respect to such Note.

     Indebtedness shall mean collectively Indenture Indebtedness and Credit
     ------------                                                          
Obligor Indebtedness.

     Indenture shall mean this instrument as originally executed or as it may
     ---------                                                               
from time to time be supplemented, modified or amended by one or more indentures
or other instruments supplemental hereto entered into pursuant to the applicable
provisions hereof.

     Indenture Indebtedness shall mean all indebtedness of the Issuer at the
     ----------------------                                                 
time secured by this Indenture, including without limitation (i) all Debt
Service and (ii) all reasonable and proper fees, charges, expenses, and
disbursements of the Trustee for services performed and disbursements made under
this Indenture.

     Independent, when used with respect to any person, shall mean a person who
     -----------                                                               
(i) is in fact independent, (ii) does not have any direct financial interest or
any material indirect financial interest in the Issuer, the Credit Obligor, or
in any other obligor with respect to the Notes or in any Affiliate of the
Issuer, the Credit Obligor, or of such other obligor, and (iii) is not connected
with the Issuer, the Credit Obligor, or such other obligor as an officer, in-
house attorney, employee, promoter, underwriter, trustee, partner, director or
person performing similar functions.

     Indirect Participant means a broker, dealer, bank or other financial
     --------------------                                                
institution for which the Securities Depository holds Notes as securities
depository through a Direct Participant.

     Interest Payment Date, when used with respect to any installment of
     ---------------------                                              
interest on a Note, means the date specified in such Note as the fixed date on
which such installment of interest is due and payable.

                                       5
<PAGE>
 
     Internal Revenue Code shall mean whichever of the following shall be
     ---------------------                                               
applicable in the context: the Internal Revenue Code of 1954, as amended; the
Internal Revenue Code of 1986, as amended; and the transition rules of related
legislation.

     Issuer shall mean La-Man Corporation, a Nevada corporation, and its
     ------                                                             
successors and assigns.

     Letter of Credit shall mean collectively the initial letter of credit
     ----------------                                                     
delivered to the Trustee on the date of delivery of the Notes, and, unless the
context or use indicates another or different meaning of intent, any Substitute
Letter of Credit accepted by the Trustee.

     Letter of Representation shall mean and include (i) the Letter of
     ------------------------                                         
Representation with respect to the Notes by the Issuer to the Securities
Depository and (ii) any other or subsequent agreement with respect to the Notes
among said parties by whatever name or identification.

     Mandatory Tender shall mean a tender of Notes required by Section 3.5.
     ----------------                                                      

     Mandatory Tender Date shall mean a date on which any Mandatory Tender is
     ---------------------                                                   
required, more particularly described in Section 3.5.

     Maximum Rate shall mean the lesser of (i) the rate of 18% per annum or (ii)
     ------------                                                               
for any period during which the Notes are supported by a Letter of Credit, the
maximum rate per annum, specified therein, upon which there has been calculated
the amount available to be drawn on such Letter of Credit to pay interest on the
Notes.

     Note shall mean any of the Notes authenticated and delivered pursuant to
     ----                                                                    
this Indenture.

     Note Counsel shall mean counsel with experience in matters relating to the
     ------------                                                              
issuance of obligations of the type evidenced by the Notes, who shall be
acceptable to the Issuer and the Trustee.

     Note Fund shall mean the fund established pursuant to Section 7.1.
     ---------                                                         

     Noteholder when used with respect to any Note shall mean the person in
     ----------                                                            
whose name such Note is registered in the Note Register (which, during the time
the Book-Entry System is in effect for the Notes, shall be the Securities
Depository or the Securities Depository Nominee).

     Note Payment Date shall mean each date (including any date fixed for
     -----------------                                                   
optional or mandatory redemption of Notes) on which Debt Service is due and
payable on the Notes.

     Note Purchase Fund shall mean the fund established pursuant to Section 7.2.
     ------------------                                                         

     Note Register shall mean the register or registers for the registration and
     -------------                                                              
transfer of Notes maintained by the Issuer pursuant to Section 4.1.

                                       6
<PAGE>
 
     Note Registrar shall mean the agent of the Issuer appointed as such
     --------------                                                     
pursuant to Section 4.1 for the purpose of registering Notes and transfers of
Notes.

     Notes shall mean the Variable/Fixed Rate Credit Enhanced Notes, authorized
     -----                                                                     
to be issued pursuant to Section 3.1.

     Opinion of Counsel shall mean a written opinion of counsel who may (except
     ------------------                                                        
as otherwise expressly provided in this Indenture) be counsel for the Issuer or
the Credit Obligor and which opinion shall be acceptable to the Trustee.

     Opinion of Note Counsel shall mean a written opinion of Note Counsel, which
     -----------------------                                                    
opinion shall be acceptable to the Trustee.

     Optional Tender shall mean a tender of Notes at the option of the Holder
     ---------------                                                         
thereof pursuant to Section 3.4.

     Optional Tender Date shall mean any date on which Notes are to be purchased
     --------------------                                                       
pursuant to an Optional Tender.

     Outstanding when used with respect to Notes shall mean, as of the date of
     -----------                                                              
determination, all Notes authenticated and delivered under this Indenture,
except:

          (1)  Notes canceled by the Trustee or delivered to the Trustee for
     cancellation,

          (2)  Notes for the payment of which (either at maturity or upon prior
     redemption) money in the necessary amount has been deposited with the
     Trustee in trust for the Holders of such Notes, provided that, if such
     Notes are to be redeemed, notice of such redemption has been duly given
     pursuant to this Indenture or provision therefor satisfactory to the
     Trustee has been made,

          (3)  Unsurrendered Notes for the purchase of which money in the
     necessary amount has been deposited in the Note Purchase Fund and is held
     in trust for the Holders of such Unsurrendered Notes, and

          (4)  Notes in exchange for or in lieu of which other Notes have been
     authenticated and delivered under this Indenture;

provided, however, that in determining whether the Holders of the requisite
principal amount of Notes Outstanding have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, Notes owned by
the Issuer or any other obligor with respect to the Notes or any Affiliate of
the Issuer or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in relying upon any such request, demand, authorization, direction, notice,
consent or waiver, only Notes which the Trustee knows to be so owned shall be
disregarded.  Notes so owned which have been

                                       7
<PAGE>
 
pledged in good faith (including Pledged Notes) may be regarded as Outstanding
for such purposes if the pledgee establishes to the satisfaction of the Trustee
the pledgee's right so to act with respect to such Notes and that the pledgee is
not the Issuer or any other obligor with respect to the Notes or any Affiliate
of the Issuer, or of such other obligor.

     Paving Agent shall mean the Trustee and any other person authorized by the
     ------------                                                              
Issuer to pay Debt Service on any Notes on behalf of the Issuer.

     Pledged Notes shall mean Notes purchased pursuant to the Optional Tender or
     -------------                                                              
Mandatory Tender provisions of this Indenture with money drawn under the Letter
of Credit and held by the Tender Agent or Trustee for the benefit of, or
registered in the name of, the Credit Obligor, as pledgee, pursuant to Section
3.6 of this Indenture and pursuant to any provision of the Credit Documents with
respect thereto.

     Post-Default Rate shall mean (i) when used with respect to any payment of
     -----------------                                                        
Debt Service on any Note, the rate specified in such Note for overdue
installments of Debt Service on such Note, computed as provided in such Note,
and (ii) when used with respect to all other payments due under this Indenture,
the rate of 12% per annum (computed on the basis of a 360-day year with 12
months of 30 days each).

     Principal Office of the Tender Agent shall mean the office where the Tender
     ------------------------------------                                       
Agent maintains its principal office.

     Proceeds Fund shall mean the fund established pursuant to Section 6.2.
     -------------                                                         

     Qualified Investments shall mean:
     ---------------------            

          (1)  Federal Securities,

          (2)  an interest in any trust or fund that invests solely in
     obligations described in (1) or (4) of this definition (including without
     limitation any fund or funds managed by the Trustee or any affiliate
     thereof or person related thereto),

          (3)  a certificate of deposit or time deposit issued by (i) the
     Trustee, or (ii) any other bank organized under the laws of the United
     States of America or any state thereof with capital, surplus and undivided
     profits of not less than $50,000,000, provided in each case such deposit is
     insured by the Federal Deposit Insurance Corporation, or such deposit is
     collaterally secured by the issuing bank by pledging Federal Securities
     having a market value (exclusive of accrued interest) not less than the
     face amount of such certificate less the amount of such deposit insured by
     the Federal Deposit Insurance Corporation, and

                                       8
<PAGE>
 
          (4) a repurchase agreement with respect to Federal Securities,
     provided that the Federal Securities subject to such repurchase agreement
     are held by or under the control of the Trustee free and clear of third-
     party liens, and

          (5) any other investment permitted by law.

     Rating Agency shall mean any nationally recognized securities rating
     -------------                                                       
agency.

     Regular Record Date shall mean (i) with respect to any Variable Rate
     -------------------                                                 
Interest Payment Date, the day (whether or not a Business Day) next preceding
such Interest Payment Date, (ii) with respect to any Fixed Rate Interest Payment
Date for a Fixed Rate Period of less than 6 months, the day (whether or not a
Business Day) next preceding such Fixed Rate Interest Payment Date, and (iii)
with respect to any Fixed Rate Interest Payment Date for a Fixed Rate Period of
6 months or more, the 15th day (whether or not a Business Day) next preceding
such Fixed Rate Interest Payment Date.

     Remarketing Agent shall mean the person appointed as "Remarketing Agent"
     -----------------                                                       
pursuant to Section 12.1, until a successor Remarketing Agent shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter
"Remarketing Agent" shall mean such successor.

     Remarketing Agreement shall mean that certain Remarketing Agent Agreement
     ---------------------                                                    
dated as of August 1, 1997, among the Issuer, the Trustee and the Remarketing
Agent.

     Securities Depository means The Depository Trust Company, a limited purpose
     ---------------------                                                      
trust company organized under the laws of the State of New York, and the
successors and assigns thereof, and any substitute securities depository
therefor that maintains a Book-Entry System for the Notes.

     Securities Depository Nominee means the Securities Depository or the
     -----------------------------                                       
nominee of such Securities Depository in whose name there shall be registered on
the Note Register the Notes to be delivered to such Securities Depository during
a period in which the Notes are held pursuant to the Book-Entry System.

     Special Funds shall mean the Note Fund, the Note Purchase Fund, the
     -------------                                                      
Proceeds Fund and any other fund or account established pursuant to this
Indenture.

     Special Record Date for the payment of any Defaulted Interest on the Notes
     -------------------                                                       
means a date fixed by the Trustee pursuant to Section 4.4.

     Stated Expiration Date shall mean the date on which the Letter of Credit
     ----------------------                                                  
will, by its terms, expire unless the Letter of Credit is terminated on an
earlier date in accordance with its terms.

                                       9
<PAGE>
 
     Substitute Letter of Credit shall mean a letter of credit delivered to the
     ---------------------------                                               
Trustee in substitution for an Existing Letter of Credit then held by the
Trustee, as more particularly described in Section 3.10.

     Tender Agent shall mean any person appointed as "Tender Agent" pursuant to
     ------------                                                              
Section 12.2, until a successor Tender Agent shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Tender Agent" shall
mean such successor.

     Tender Date shall mean an Optional Tender Date or a Mandatory Tender Date,
     -----------                                                               
as the case may be.

     Tendered Notes shall mean Notes tendered (or deemed tendered) for purchase
     --------------                                                            
pursuant to the Optional Tender or Mandatory Tender provisions of this
Indenture.

     Trust Estate shall have the meaning stated in the habendum to the granting
     ------------                                                              
clauses to this Indenture.

     Trustee shall mean SouthTrust Bank, National Association, a national
     -------                                                             
banking association having its principal office in Birmingham, Alabama (in its
capacity as trustee hereunder), with its Designated Office presently located in
Ft. Lauderdale, Florida, until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean such successor.

     Unsurrendered Note shall mean Notes (or portions thereof in authorized
     ------------------                                                    
denominations) which are deemed purchased pursuant to Optional Tender or
Mandatory Tender provisions hereof, but which have not been presented to the
Trustee by the Holders thereof; provided that any Note which the Holder thereof
elects to retain under Section 3.5(c) shall not be an Unsurrendered Note for
purposes of this Indenture.

     Variable Rate shall mean the variable interest rate borne by the Notes
     -------------                                                         
during a Variable Rate Period, more particularly described in Section 3.2.

     Variable Rate Interest Payment Date shall mean a date on which interest
     -----------------------------------                                    
calculated at the Variable Rate is payable on the Notes, more particularly
described in Section 3.1(i).

     Variable Rate Period shall mean a period during which the Notes bear
     --------------------                                                
interest at the Variable Rate, more particularly described in Section 3.2.

     SECTION 1.2    ACTS OF NOTEHOLDERS
                    -------------------

     (a) Any request, demand, authorization, direction, notice, consent, waiver
or other action provided by this Indenture to be given, made or taken by
Noteholders may be embodied in and evidenced by one or more substantially
concurrent instruments of substantially similar tenor signed by such Noteholders
in person or by an agent duly appointed in writing; and, except

                                       10
<PAGE>
 
as herein otherwise expressly provided, such action shall become effective when
such instrument or instruments are delivered to the Trustee, and, where it is
hereby expressly required, to the Issuer.  Such instrument or instruments (and
the action embodied therein and evidenced thereby) are herein sometimes referred
to as the "Act" of the Noteholders signing such instrument or instruments.
Proof of execution of any such instrument or of a writing appointing any such
agent, or of the holding by any person of Notes, shall be sufficient for any
purpose of this Indenture and conclusive in favor of the Issuer and (subject to
Section 10.1) in favor of the Trustee, if made in the manner provided in this
Section.

     (b) The fact and date of the execution by any person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by
the certificate of any notary public or other officers authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Whenever such execution is
by an officer of a corporation, a member of a general partnership, or a general
partner of a limited partnership, or by any person purporting to act for a
limited liability company or limited liability partnership, on behalf thereof,
such certificate or affidavit shall also constitute sufficient proof of the
authority therefor.

     (c) The ownership of Notes shall be proved by the Note Register.

     (d) Any request, demand, authorization, direction, notice, consent, waiver
or other action by the Holder of any Note shall bind every future Holder of the
same Note and the Holder of every Note issued upon the transfer thereof or in
exchange therefor or in lieu thereof, in respect of anything done or suffered to
be done by the Trustee or the Issuer in reliance thereon, whether or not
notation of such action is made upon such Note.

     SECTION 1.3    FORM AND CONTENTS OF DOCUMENTS DELIVERED TO TRUSTEE
                    ---------------------------------------------------

     (a) Whenever several matters are required to be certified by, or covered by
an opinion of, any specified person, it is not necessary that all such matters
be certified by, or covered by the opinion of, only one such person, or that
they be so certified or covered by only one document, but one such person may
certify or give an opinion with respect to some matters and one or more other
such persons as to other matters, and any such person may certify or give an
opinion as to such matters in one or several documents.

     (b) Any certificate or opinion of an officer of the Issuer may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, legal counsel, unless such person knows, or in the exercise
of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous.  Any Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an Authorized Issuer Representative stating that the
information with respect to such factual matters is in the possession of the
Issuer, unless such legal counsel knows, or in the exercise of reasonable care

                                       11
<PAGE>
 
should know, that the certificate or opinion or representations with respect to
such matters are erroneous.

     (c) Whenever any person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

     (d) Wherever in this Indenture, in connection with any application or
certificate or report to the Trustee, it is provided that the Issuer shall
deliver any document as a condition of the granting of such application, or as
evidence of the Issuer's compliance with any term hereof, it is intended that
the truth and accuracy, at the time of the granting of such application or at
the effective date of such certificate or report (as the case may be), of the
facts and opinions stated in such document shall in such case be conditions
precedent to the right of the Issuer to have such application granted or to the
sufficiency of such certificate or report.

     SECTION 1.4    COMPLIANCE CERTIFICATES AND OPINIONS
                    ------------------------------------

     (a) Upon any application or request by the Issuer to the Trustee to take
any action under any provision of this Indenture, the Issuer shall furnish to
the Trustee a certificate signed by an Authorized Issuer Representative stating
that all conditions precedent, if any, provided for in this Indenture relating
to the proposed action have been complied with and an Opinion of Counsel stating
that in the opinion of such counsel all such conditions precedent, if any, have
been complied with, except that in the case of any such application or request
as to which the furnishing of such documents is specifically required by any
provision of this Indenture relating to such particular application or request,
no additional certificate or opinion need be furnished.

     (b) Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include:

         (1) a statement that each individual signing such certificate or
     opinion has read such condition or covenant and the definitions herein
     relating thereto;

         (2) a brief statement as to the nature and scope of the examination or
     investigation upon which the statements or opinions contained in such
     certificate or opinion are based;

         (3) a statement that, in the opinion of each such individual, he or
     she has made such examination or investigation as is necessary to enable
     such individual to express an informed opinion as to whether or not such
     condition or covenant has been complied with; and

         (4) a statement as to whether, in the opinion of each such individual,
     such condition or covenant has been complied with.

                                       12
<PAGE>
 
     SECTION 1.5    EFFECT OF HEADINGS AND TABLE OF CONTENTS
                    ----------------------------------------

     The Article and Section headings herein and in the Table of Contents are
for convenience only and shall not affect the construction hereof.

     SECTION 1.6    DATE OF INDENTURE
                    -----------------

     The date of this Indenture is intended as and for a date for the convenient
identification of this Indenture and is not intended to indicate that this
Indenture was executed and delivered on said date.

     SECTION 1.7    ENFORCEABILITY
                    --------------

     If any provision in this Indenture or in the Notes shall be invalid,
illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions shall not in any way be affected or impaired thereby.

     SECTION 1.8    GOVERNING LAW
                    -------------

     This Indenture shall be construed in accordance with and governed by the
laws of the State of Florida.

     SECTION 1.9    COUNTERPARTS
                    ------------

     This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed an original, but all such counterparts shall
together constitute but one and the same instrument.

     SECTION 1.10   NOTICES
                    -------

     (a) Any request, demand, authorization, direction, notice, consent, waiver
or Act of Noteholders or other document provided or permitted by this Indenture
to be made upon, given or furnished to, or filed with, the Issuer, the Trustee,
the Tender Agent, the Remarketing Agent, or the Credit Obligor shall be
sufficient for every purpose hereunder if in writing and (except as otherwise
provided in this Indenture) (i) delivered personally to the party or, if such
party is not an individual, to an officer or other legal representative of the
party to whom the same is directed, at the address specified below, (ii) mailed
by first-class, registered or certified mail, postage prepaid, addressed as
specified below, or (iii) sent by facsimile transmission to the facsimile number
specified below.  The hand delivery and mailing addresses and telephone and
facsimile numbers for the parties are as follows:

                                       13
<PAGE>
 
TRUSTEE
-------

               SouthTrust Bank, National Association
               Corporate Trust Department
               101 N.E. 3rd Avenue, Suite 100
               (Suite 502 if sent by courier service)
               Ft. Lauderdale, Florida 33301

               Telephone number: 954/527-5628
               Facsimile number: 954/760-7937

REMARKETING AGENT
-----------------

               SouthTrust Securities, Inc.
               112 North 20th Street
               Birmingham, Alabama 35203

               Telephone number: 205/254-5400
               Facsimile number: 205/254-4989

ISSUER
------

               La-Man Corporation
               5029 Edgewater Drive
               Orlando, Florida 32810

               Telephone number: 407/521-7477
               Facsimile number: 407/521-8767

CREDIT OBLIGOR
--------------

               SouthTrust Bank, National Association
               SouthTrust Tower
               420 North 20th Street (35203)
               P.O. Box 2554 (35290)
               Birmingham, Alabama

               Attn: Corporate Banking

               Telephone number: 205/254-5626
               Facsimile number: 205/254-4240

                                       14
<PAGE>
 
     (b) Any of such parties may change the address or number for receiving any
such notice or other document by giving notice of the change to the other
parties named in this Section.

     (c) Any notice or other document shall be deemed delivered when actually
received by the party to whom directed (or, if such party is not an individual,
to an officer or other legal representative of the party) at the address or
number specified pursuant to this Section, or, if sent by mail, 3 days after
such notice or document is deposited in the United States mail, first class
postage prepaid, addressed as provided above.

     SECTION 1.11   NOTICES TO NOTEHOLDERS; WAIVER
                    ------------------------------

     (a) Where this Indenture provides for publication of notice to Noteholders
of any event, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, or
sent by facsimile transmission, to each Holder of such Notes, at the address of
such Holder as it appears in the Note Register, not later than the latest date,
and not earlier than the earliest date, prescribed for the first publication of
such notice.

     (b) In any case where notice to Noteholders is given, neither the failure
to send such notice, nor any defect in any notice so sent, to any particular
Noteholder shall affect the sufficiency of such notice with respect to other
Noteholders.  Where this Indenture provides for notice in any manner, such
notice may be waived in writing by the person entitled to receive such notice,
either before or after the event, and such waiver shall be the equivalent of
such notice.  Waivers of notice by Noteholders shall be filed with the Trustee,
but such filing shall not be a condition precedent to the validity of any action
taken in reliance upon such waiver.

     SECTION 1.12   CONCERNING THE CREDIT OBLIGOR AND THE LETTER OF CREDIT
                    ------------------------------------------------------

     (a) No consent or direction or other exercise of discretion or control by
the Credit Obligor hereunder shall be required or permitted if the Letter of
Credit is no longer in effect or if the Credit Obligor has dishonored a draw
under the Letter of Credit or a Credit Obligor Insolvency Date shall have
occurred.

     (b) Nothing contained in this Indenture shall be construed to require or
permit any consent or approval by the Credit Obligor for the performance by the
Trustee of its obligations under Sections 7.1, 7.2 or 9.2, with respect to draws
under the Letter of Credit and acceleration of the maturity of the Notes, except
where such consent or approval of the Credit Obligor is expressly required or
permitted in any of such Sections.

     SECTION 1.13   NOTICE TO RATING AGENCIES
                    -------------------------

     The Trustee shall promptly furnish to each Rating Agency (if any) that
maintains a rating with respect to the Notes a notice of (i) any change of the
Trustee, the Remarketing Agent or

                                       15
<PAGE>
 
the Tender Agent, (ii) any change or amendment of the Indenture or the Letter of
Credit, (iii) the expiration or renewal or extension or termination of the term
of the Letter of Credit, or substitution of the Letter of Credit, (iv) the
conversion of the interest rate on the Notes to a Fixed Rate, (v) the
acceleration of payment of principal and interest on the Notes pursuant to
Section 9.2, (vi) the payment in full, or the redemption prior to maturity, of
all Notes Outstanding hereunder, (vii) receipt of notice of the Issuer's intent
to establish a trust for the payment of the Notes in accordance with Section
13.2 or (viii) any other information required by law to be furnished by the
Trustee to any such Rating Agency.

     SECTION 1.14   SUCCESSORS AND ASSIGNS
                    ----------------------

     All covenants and agreements in this Indenture by the Issuer shall bind its
successors and assigns, whether so expressed or not.

     SECTION 1.15   BENEFITS OF INDENTURE
                    ---------------------

     Nothing in this Indenture or in the Notes, express or implied, shall give
to any person, other than the parties hereto and their successors hereunder, the
Holders of the Outstanding Notes, and the Credit Obligor, any benefit or any
legal or equitable right, remedy or claim under this Indenture.


                                  ARTICLE II

                               GRANTING CLAUSES
                               ----------------

     To secure the payment of Debt Service on the Notes and all other Indenture
Indebtedness and the performance of the covenants contained herein and in the
Notes, and to declare the terms and conditions on which the Notes are secured,
and in consideration of the premises and of the purchase of the Notes by the
Holders thereof, the Issuer by these presents does hereby grant, bargain, sell,
alien, remise, release, convey, assign, transfer, mortgage, hypothecate, pledge,
set over and confirm unto the Trustee, and grant to the Trustee security title
to and a continuing security interest in, all and singular, the following
described property and all proceeds and products thereof:

                                      I.

     Money and investments from time to time on deposit in, or forming a part
of, the Special Funds, subject to the provisions of this Indenture permitting
the application thereof for the purposes and on the terms and conditions set
forth herein.

                                       16
<PAGE>
 
                                      II.

     Any and all property of every kind or description which may, from time to
time hereafter, by delivery or by writing of any kind, be subjected to the lien
of this Indenture as additional security by the Issuer or anyone on its part or
with its written consent, or which pursuant to any of the provisions hereof may
come into the possession or control of the Trustee or a receiver appointed
pursuant to this Indenture; and the Trustee is hereby authorized to receive any
and all such property as and for additional security for the Notes and to hold
and apply all such property subject to the terms hereof;

     TO HAVE AND TO HOLD all said property, rights and privileges of every kind
and description, real, personal or mixed, hereby and hereafter (by supplemental
indenture or otherwise) granted, bargained, sold, aliened, remised, released,
conveyed, assigned, transferred, mortgaged, hypothecated, pledged, set over or
confirmed as aforesaid, or intended, agreed or covenanted so to be, together
with all the appurtenances thereto appertaining (said property, rights and
privileges being herein called the "Trust Estate") unto the Trustee and its
successors and assigns forever;

     BUT IN TRUST, NEVERTHELESS, for the equal and proportionate benefit and
security of the Holders from time to time of the Notes without any priority of
any such Note over any other such Note;

     PROVIDED, HOWEVER, that money collected by the Trustee pursuant to the
Letter of Credit shall be used solely for the purpose of paying Debt Service on
the Notes or the purchase price of Notes tendered for purchase pursuant to the
Optional Tender or Mandatory Tender provisions hereof.


                                  ARTICLE III

                                   THE NOTES
                                   ---------

     SECTION 3.1  GENERAL TERMS
                  -------------

     (a) There is hereby authorized to be issued under and secured by this
Indenture Notes in aggregate principal amount of $2,500,000 and designated as
provided in the form thereof set forth on Exhibit A hereto.

     (b) No additional notes may be issued hereunder.

     (c) The Notes shall be issued as registered notes, without coupons, in
Authorized Denominations, in substantially the form of Exhibit A to this
Indenture, with appropriate variations, omissions, insertions, notations,
legends or endorsements required by law or usage

                                       17
<PAGE>
 
or permitted or required by this Indenture.  The Notes shall be numbered
separately from R-1 upward.

     (d) The Notes shall mature on August 1, 2012, subject to the provisions of
Section 5.1(b) and Section 9.2.

     (e) The Notes shall be dated as of the date of initial delivery thereof and
shall bear interest from such date, or the most recent date to which interest
has been paid or duly provided for, at the applicable rate per annum set forth
in this Article.

     (f) The Notes shall bear interest at the Variable Rate or at the Fixed
Rate, as provided in Sections 3.2 and 3.3.

     (g) Interest at the Variable Rate and interest at a Fixed Rate for each
Fixed Rate Period of less than 6 months shall be computed on the basis of a 360
day year for the actual number of days elapsed. Interest at the Fixed Rate for
each Fixed Rate Period of 6 months or more shall be computed on the basis of a
360-day year with 12 months of 30 days each.

     (h) Interest shall be payable on overdue principal on the Notes and (to the
extent legally enforceable) on any overdue installment of interest on the Notes
at the Post-Default Rate.

     (i) Interest shall be payable in arrears on the following Interest Payment
Dates:

         (1) with respect to interest payable at the Variable Rate, on (i) the
     first day of each month of each year during the Variable Rate Period and
     (ii) the day immediately following any Variable Rate Period;

         (2) with respect to interest payable at a Fixed Rate for any Fixed
     Rate Period of less than 6 months, on the day immediately following such
     Fixed Rate Period; and

         (3) with respect to interest payable at a Fixed Rate for any Fixed
     Rate Period of 6 months or more, (i) on the first day of the calendar month
     that is 6 months after the first day of the calendar month in which such
     Fixed Rate Period began, (ii) semiannually thereafter, and (iii) on the day
     immediately following such Fixed Rate Period.

     (j) Payment of interest on the Notes due on any Interest Payment Date shall
be made by check or draft mailed by the Trustee to the Noteholder or Noteholders
at the address thereof appearing in the Note Register.  Such payments of
interest shall be deemed timely made if so mailed on the Interest Payment Date
(or, if any such Interest Payment Date is not a Business Day, on the Business
Day next following such Interest Payment Date).  Payment of principal of (and
premium, if any, on) any Note and payment of accrued interest on any Note due
upon redemption on any date other than an Interest Payment Date shall be made
only upon surrender of such Note at the Designated Office of the Trustee or at
the office of any other Paying Agent therefor.

                                       18
<PAGE>
 
     (k) Subsection (j) of this Section to the contrary notwithstanding, upon
the written request of the Holder of any Note in a principal amount of not less
than $100,000, the Trustee will make payment of the Debt Service due on such
Note by wire transfer to an account of such Holder maintained at a bank in the
continental United States or by any other method providing for payment in same-
day funds that is acceptable to the Trustee, provided that:

         (1) such written request contains adequate instructions for the method
     of payment, and

         (2) payment of the principal of (and redemption premium, if any, on)
     such Note and payment of the accrued interest on such Note due upon
     redemption on any date other than an Interest Payment Date shall be made
     only upon surrender of such Note to the Trustee.

     SECTION 3.2    VARIABLE RATE
                    -------------

     (a) The Notes shall initially bear interest at a Variable Rate.  Upon the
expiration of any Fixed Rate Period for the Notes, such Notes shall bear
interest at the Variable Rate (unless the day immediately following such Fixed
Rate Period is a Conversion Date), and once the Variable Rate becomes effective,
it shall remain in effect until and including the day immediately prior to the
earlier of (i) a Conversion Date or (ii) the final maturity of the Notes.

     (b) The Variable Rate shall be a fluctuating rate per annum determined by
the Remarketing Agent periodically during a Variable Rate Period as provided
below in this Section.

     (c) The Variable Rate shall be determined on the first day of each Variable
Rate Period (beginning upon initial issuance of the Notes and upon any change
from a Fixed Rate Period to a Variable Rate Period) and on each Thursday during
such Variable Rate Period (or, if any such day for determination is not a
Business Day, on or as of the immediately preceding Business Day).  The Variable
Rate so determined shall become effective (i) in the case of a determination in
connection with the initial issuance of the Notes or a change from a Fixed Rate
Period to a Variable Rate Period, the first day of the Variable Rate Period, and
(ii) in any other case, on the Friday immediately following the date of
determination, and once effective shall remain in effect until and including the
following Thursday, or, if sooner, the ending day of such Variable Rate Period;
provided, however, that if the Remarketing Agent fails to determine the Variable
Rate on any such determination date, the last Variable Rate in effect shall
remain in effect until and including the next Thursday, or, if sooner, the
ending day of such Variable Rate Period, and provided further, if the
Remarketing Agent fails to determine the Variable Rate on two consecutive
determination dates therefor, the Variable Rate shall be equal to the Maximum
Rate until and including the day preceding the effective date of a Variable Rate
change for which the Remarketing Agent shall have determined the Variable Rate
in accordance with the terms hereof.

                                       19
<PAGE>
 
     (d) The Variable Rate shall be determined by the Remarketing Agent and
shall be the lowest interest rate that would, in the opinion of the Remarketing
Agent, result in the market value of the Notes being 100% of the principal
amount thereof on the date of such determination, taking into account relevant
market conditions and credit rating factors as they exist on such date;
provided, however, that the Variable Rate may never exceed the Maximum Rate.  On
each Variable Rate determination date the Remarketing Agent shall deliver
written notice of the Variable Rate so determined to the Trustee, by 3:00 p.m.
(Ft. Lauderdale, Florida time), and to the Issuer and the Credit Obligor.  Upon
the request of any Noteholder, the Trustee shall confirm (by telephone and in
writing, if so requested) the Variable Rate then in effect.

     (e) The Variable Rate determined from time to time by the Remarketing Agent
shall be conclusive and binding on the Issuer, the Trustee and the Noteholders.

     SECTION 3.3    FIXED RATE

     (a) The Notes shall bear interest at a Fixed Rate during each period of
time specified by the Issuer as provided below in this Section.  Upon the
expiration of a Fixed Rate Period, interest on the Notes will automatically
convert to a Variable Rate unless and until the Issuer elects to have the
interest rate converted to another Fixed Rate for a Fixed Rate Period designated
by the Issuer.

     (b) The Fixed Rate shall be a fixed rate per annum which shall be
applicable during the entire Fixed Rate Period and, for each Fixed Rate Period
other than the initial Fixed Rate Period, shall be determined by the Remarketing
Agent as provided below in this Section.

     (c) The Issuer may elect that the Notes bear interest at a Fixed Rate for
any period after the initial Variable Rate Period by delivery of written notice
of such election to the Trustee not less than 45 days prior to the proposed
Conversion Date.  Such notice shall specify the first day and the last day of
the Fixed Rate Period elected; provided, however, that (i) if such election is
made during a Fixed Rate Period, the specified Conversion Date may not be sooner
than the first day immediately following the Fixed Rate Period then in effect,
(ii) the Conversion Date may not be less than 45 days prior to the Stated
Expiration Date of the Letter of Credit (if any) then in effect, (iii) the
designated Fixed Rate Period may not be less than 15 days, and (iv) the Fixed
Rate Period may not extend beyond the day immediately prior to the final
maturity of the Notes.  The Trustee shall deliver a copy of such notice to the
Remarketing Agent, the Tender Agent and the Credit Obligor on or before the
third Business Day following the Trustee's receipt thereof.  Any such election
by the Issuer shall be irrevocable after 10:00 a.m. (Ft. Lauderdale, Florida
time) on the last Business Day immediately prior to the proposed Conversion
Date.

     (d) Not less than 1 nor more than 10 days prior to the proposed Conversion
Date the Remarketing Agent shall determine the interest rate for such Fixed Rate
Period, which shall be the lowest interest rate that would, in the opinion of
the Remarketing Agent, result in the market

                                       20
<PAGE>
 
value of the Notes being 100% of the principal amount thereof on the date of
such determination, taking into account relevant market conditions and credit
rating factors as they exist on such date, and assuming that the Fixed Rate
Period begins on such date; provided, however, that the Fixed Rate may not
exceed the Maximum Rate.  The Remarketing Agent shall deliver written notice of
the Fixed Rate or Rates to the Trustee and the Issuer on the date the same are
determined.

     (e) Notwithstanding the foregoing, a Fixed Rate or Fixed Rates shall not be
established if:

         (1) the Issuer delivers to the Trustee written notice of revocation of
     its election to establish the Fixed Rate before 10:00 a.m. (Ft. Lauderdale,
     Florida time) on the last Business Day immediately prior to the proposed
     Conversion Date, or

         (2) prior to 10:00 a.m. (Ft. Lauderdale, Florida time) on the
     Conversion Date the Trustee does not receive (i) an Opinion of Note Counsel
     stating in effect that such conversion to a Fixed Rate is lawful under
     applicable law, and (ii) the Substitute Letter of Credit (if any) that is
     to be effective on such Conversion Date.

If all conditions to the establishment of a Fixed Rate or Fixed Rates are not
satisfied, the Notes shall continue (or, if a Fixed Rate Period ended on the
preceding day, shall begin) to bear interest at the Variable Rate from the
proposed Conversion Date.

     (f) The Fixed Rate or Rates determined by the Remarketing Agent shall be
conclusive and binding on the Issuer, the Trustee and the Noteholders.

     SECTION 3.4    OPTIONAL TENDER
                    ---------------

     (a) The Holder of any Note shall have the right to tender such Note to the
Trustee or Tender Agent for purchase in whole or in part (if in part, only in an
Authorized Denomination) on any Business Day during any Variable Rate Period,
but not during any Fixed Rate Period, at a purchase price equal to 100% of the
principal amount of Notes (or portions thereof) tendered plus accrued interest
to the specified purchase date.  In order to exercise such option with respect
to any Note, the Holder thereof must deliver notice thereof to the Trustee, as
provided below in this Section, at its Designated Office at least 7 days prior
to the proposed Optional Tender Date.

     (b) The written notice of Optional Tender must be substantially in the form
set forth on Exhibit C attached hereto, or in such other form as shall be
acceptable to the Trustee, and must be duly executed by the Noteholder and must
specify (i) the name of the registered Holder of the Note to be tendered for
purchase, (ii) the Optional Tender Date, (iii) the certificate number (if
applicable) and principal amount of such Note, and (iv) the principal amount of
such Note to be purchased (if such amount is less than the entire principal
amount, the amount to be

                                       21
<PAGE>
 
purchased must be in an Authorized Denomination).  Such notice shall be given to
the Trustee in writing.

     (c) If any notice of Optional Tender specifies an Optional Tender Date that
is not a Business Day, then such notice shall be deemed to specify the next
following Business Day as the Optional Tender Date.  Unless a notice of Optional
Tender indicates that less than the entire principal amount of the Note is being
tendered for purchase, the Holder will be deemed to have tendered the Note in
its entire principal amount for purchase.

     (d) Not later than 3:00 p.m. (Ft. Lauderdale, Florida time) on the Business
Day after receipt of any such written notice of Optional Tender the Trustee
shall deliver written notice to the Tender Agent, the Remarketing Agent, the
Issuer and the Credit Obligor specifying (i) the principal amount of Notes for
which a notice of Optional Tender has been given and (ii) the proposed Optional
Tender Date therefor.

     (e) Upon delivery of a written notice of Optional Tender, the election to
tender shall be irrevocable and binding upon such Holder and may not be
withdrawn.  The Trustee shall, in its sole discretion, determine whether, with
respect to any Note, the Holder thereof shall have properly exercised the option
to have such Holder's Note or any authorized part thereof purchased pursuant to
this Section.

     (f) If a written notice of tender shall have been duly given with respect
to any Note or any authorized part thereof, the Holder of such Note shall
deliver such Note to the Trustee at its Designated Office or to the Tender Agent
at its Principal Office at or before 10:00 a.m. (Ft. Lauderdale, Florida time)
on the Optional Tender Date, together with an instrument of assignment or
transfer duly executed in blank (which instrument of assignment or transfer
shall be in the form provided on such Note or in such other form as shall be
acceptable to the Trustee or the Tender Agent).  During a period in which the
Book-Entry System is in effect for the Notes, transfers of the beneficial
ownership interests in the Notes on such date shall be effected on the records
of the Securities Depository by the Securities Depository in accordance with
rules and procedures therefor and any requirement for physical delivery of Notes
on an Optional Tender Date shall be deemed satisfied thereby.  Any Note or any
authorized part thereof for which a notice of Optional Tender has been given but
which is not so delivered to the Trustee or Tender Agent or transferred on the
records of the Securities Depository shall nevertheless be deemed to have been
tendered by the Holder thereof on the Optional Tender Date.

     (g) On each Optional Tender Date the Trustee shall purchase, or cause to be
purchased, all Notes or any authorized part thereof as to which written notices
of Optional Tender for purchase have been received at a purchase price equal to
100% of the principal amount thereof plus accrued interest to the Optional
Tender Date.  Funds for payment of the purchase price of such Notes or such
parts shall be drawn by the Trustee from the Note Purchase Fund as provided in
Section 7.2.

                                       22
<PAGE>
 
     (h) If there has been irrevocably deposited in the Note Purchase Fund an
amount sufficient to pay the principal amount of plus accrued interest to the
specified purchase date on all Notes or authorized parts thereof tendered or
deemed to be tendered for purchase on an Optional Tender Date, any Unsurrendered
Notes shall be deemed to have been tendered for purchase and purchased from the
Holder thereof on such Optional Tender Date and the Holder of any Unsurrendered
Note shall not be entitled to receive interest on such Unsurrendered Note for
any period on and after the Optional Tender Date.  The Trustee shall issue a new
Note or Notes in the same aggregate principal amount for any Unsurrendered Notes
which are not tendered for purchase on any Optional Tender Date and, upon
receipt by the Trustee or Tender Agent of any such Unsurrendered Notes from the
Holders thereof, shall pay, or cause to be paid, the purchase price of such
Unsurrendered Notes to the Holders thereof and cancel such Unsurrendered Notes.

     (i) Anything in this Indenture to the contrary notwithstanding, no Optional
Tender of Notes shall be permitted for Pledged Notes or for any Note which is
deemed Fully Paid.

     SECTION 3.5    MANDATORY TENDER
                    ----------------

     (a) The Holder of each Note other than a Pledged Note or a Note that has
been deemed Fully Paid shall be required to tender such Note to the Trustee or
Tender Agent for purchase on the following dates (each a Mandatory Tender Date;
provided, however, if any of such dates is not a Business Day, the Mandatory
Tender Date shall be deemed to be the next succeeding Business Day; provided
further, however, that in the case of clause (5) or clause (6) of this
subsection, each such Holder may elect to retain the Note or Notes thereof by
written notice meeting the requirements of subsection 3.5(c) delivered to the
Designated Office of the Trustee not less than five days prior to the Mandatory
Tender Date):

         (1) each proposed Conversion Date,

         (2) the date immediately following the expiration of a Fixed Rate
     Period,

         (3) the first day of the calendar month in which the Stated Expiration
     Date of the Letter of Credit occurs, unless a Substitute Letter of Credit
     and Related Documentation all meeting the requirements of this Indenture
     therefor is delivered to the Trustee in accordance with the terms of
     Section 3.10 of this Indenture,

         (4) a Credit Obligor Insolvency Date,

         (5) that date which is 15 days prior to the effective date of any
     change in the frequency with which or the formula by which the interest
     rate on the Notes is established during a Variable Rate Period,

         (6) that date which is 15 days prior to the effective date of any
     change in the optional tender terms of the Notes during a Variable Rate
     Period.

                                       23
<PAGE>
 
     (b) Not less than 15 days prior to the Mandatory Tender Date, notice of a
Mandatory Tender shall be given by the Trustee in writing to the Tender Agent,
the Remarketing Agent, the Issuer, and the Credit Obligor and in writing by
registered or certified mail to the Noteholder or Noteholders at the address
thereof appearing on the Note Register.  Such notice of Mandatory Tender shall

         (1) specify the Mandatory Tender Date,

         (2) state the reason for the Mandatory Tender (being the applicable
     event listed in subsection (a) of this Section), and whether the then
     Existing Letter of Credit or a Substitute Letter of Credit will be in
     effect following the Mandatory Tender Date,

         (3) state that all Notes shall be tendered by the Holders thereof on
     such Mandatory Tender Date by appropriate transfer on the records of the
     Securities Depository or by delivery to the Trustee at its Designated
     Office or to the Tender Agent at its Principal Office at or before 10:00
     a.m. (Ft. Lauderdale, Florida time) together with an instrument of
     assignment or transfer duly executed in blank (which instrument of
     assignment or transfer shall be in the form provided in the Notes or such
     other form as shall be acceptable to the Trustee or Tender Agent),

         (4) state that all Notes shall be purchased on the Mandatory Tender
     Date at a purchase price equal to 100% of the principal amount thereof plus
     accrued interest, if any, to the Mandatory Tender Date, and any Note that
     is not so transferred on the records of the Securities Depository or so
     delivered to the Trustee or Tender Agent shall be deemed to have been
     tendered for purchase by the Holder thereof on the Mandatory Tender Date,

         (5) in the case of a Mandatory Tender as a result of a change
     described in clause (5) or clause (6) of subsection 3.5(a), state that any
     Holder may elect to retain the Note or Notes thereof by written notice
     meeting the requirements of subsection 3.5(c) (a description of which
     requirements shall be included in such notice) delivered to the Designated
     Office of the Trustee not less than five days prior to the Mandatory Tender
     Date.

     (c) (1) In the case of a Mandatory Tender as a result of a change
described in clause (5) or clause (6) of subsection 3.5(a), the Holder of any
Note subject to a Mandatory Tender may elect to retain the Note or Notes thereof
by written notice delivered to the Designated Office of the Trustee not less
than five days prior to the Mandatory Tender Date, which notice shall be
effective upon receipt and shall:

             (i)   state that the person delivering the same is a Holder and the
         principal amount of the Notes such Holder is electing to retain,

                                       24
<PAGE>
 
             (ii)  state that the Holder has received notice of the Mandatory
         Tender and the reason therefor,

             (iii) direct the Trustee not to purchase the specified principal
         amount of the Notes of the Holder.

         (2) Any notice delivered to the Trustee by any Holder pursuant to this
subsection 3.5(c) shall be irrevocable and binding upon the Holder delivering
the same and upon all subsequent Holders of the Notes so retained (including any
Notes issued in exchange therefor or upon transfer thereof).

         (3) Any Note which the Holder thereof elects to retain under this
subsection 3.5(c) shall not be an "Unsurrendered Note" for purposes of this
Indenture.

     (d) All Notes to be tendered by the Holders thereof for purchase shall be
delivered at or before 10:00 a.m. (Ft. Lauderdale, Florida time) on the
Mandatory Tender Date, to the Trustee at its Designated Office or to the Tender
Agent at its Principal Office, together with an instrument of assignment or
transfer duly executed in blank (which instrument of assignment or transfer
shall be in the form provided in the Notes or such other form as shall be
acceptable to the Trustee or Tender Agent).  During a period in which the Book-
Entry System is in effect for the Notes, transfers of the beneficial ownership
interests in the Notes on such date shall be effected on the records of the
Securities Depository by the Securities Depository in accordance with rules and
procedures therefor and any requirement for physical delivery of Notes on a
Mandatory Tender Date shall be deemed satisfied thereby.  All Unsurrendered
Notes shall nevertheless be deemed to have been tendered for purchase by the
Holders thereof on the Mandatory Tender Date.

     (e) On the Mandatory Tender Date, the Trustee shall purchase, or cause to
be purchased, all Notes tendered or deemed tendered for purchase on such date at
a purchase price equal to 100% of the principal amount thereof plus accrued
interest, if any, to the Mandatory Tender Date.  Funds for payment of the
purchase price of such Notes shall be drawn by the Trustee from the Note
Purchase Fund as provided in Section 7.2.

     (f) If there has been irrevocably deposited in the Note Purchase Fund an
amount sufficient to pay the purchase price of all Notes tendered or deemed
tendered for purchase on the Mandatory Tender Date, any Unsurrendered Notes
shall be deemed to be tendered for purchase and purchased from the Holder
thereof on such Mandatory Tender Date and the Holder of any Unsurrendered Note
shall not be entitled to receive interest on such Unsurrendered Note for any
period on and after the relevant Mandatory Tender Date.  The Trustee shall issue
a new Note or Notes in the same aggregate principal amount for any Unsurrendered
Notes which are not tendered for purchase on any Mandatory Tender Date and, upon
receipt by the Trustee or Tender Agent of any such Unsurrendered Notes from the
Holders thereof, shall pay, or cause to be paid, the purchase price of such
Unsurrendered Notes to the Holders thereof and cancel such Unsurrendered Notes.

                                       25
<PAGE>
 
     (g) After notice of a Mandatory Tender has been given by the Trustee, the
Notes shall be subject to Mandatory Tender (except with respect to Notes which
the Holders thereof have elected to retain as provided in subsection 3.5(c))
notwithstanding the fact that the reasons for giving such notice cease to exist
or are no longer applicable.

     SECTION 3.6    PROCEDURES FOR PURCHASE AND REMARKETING OF NOTES; DELIVERY
                    ----------------------------------------------------------
OF PURCHASED AND REMARKETED NOTES
---------------------------------

     (a) Anything in this Indenture to the contrary notwithstanding, for
purposes of this Section 3.6 during a period in which the Book-Entry System is
in effect for the Notes:

         (1) the term "Note" and "Notes" when used in this Section 3.6 shall
     mean and include the interests of the Beneficial Owners therein all or a
     portion of which are tendered or deemed tendered for purchase pursuant to
     this Indenture, and

         (2) the term "Holder" and "Holders" when used in this Section 3.6
     shall mean and include any Beneficial Owner or Beneficial Owners who shall
     have tendered the interests (or a portion) thereof in the Notes for
     purchase pursuant to this Indenture, and

         (3) delivery, transfer, and registration of ownership and pledge of
     the beneficial ownership interests in the Notes shall be effected on the
     records of the Securities Depository by the Securities Depository in
     accordance with rules and procedures therefor and any requirement for
     physical delivery of Notes in connection with such tender shall be deemed
     satisfied thereby.

     (b) The Remarketing Agent will use its best efforts to remarket all Notes
tendered or deemed to be tendered for purchase pursuant to the Optional Tender
or Mandatory Tender provisions hereof, subject to the provisions of subsection
(h) of this Section.  The Issuer may at any time, upon written direction to the
Remarketing Agent, direct the Remarketing Agent to cease or resume the
remarketing of some or all of the Notes.

     (c) At or prior to 11:00 a.m. (Ft. Lauderdale, Florida time) on any Tender
Date (or at such other time to which the Trustee shall agree), the Remarketing
Agent shall give telegraphic or telephonic notice, promptly confirmed in
writing, to the Trustee specifying or confirming the names, addresses, and
taxpayer identification numbers of the purchasers of, and the principal amount
and denominations of, such Notes, if any, remarketed by it pursuant to this
Section.  The Remarketing Agent shall make appropriate settlement arrangements
between the purchasers of such remarketed Notes and the Trustee, and shall
direct such purchasers by appropriate instructions to pay the purchase price of
such Notes to the Trustee at or before 12:00 noon (Ft. Lauderdale, Florida time)
on the Tender Date.  The Trustee shall deposit the proceeds of any such
remarketing in the Note Purchase Fund.

     (d) At or before 1:00 p.m. (Ft. Lauderdale, Florida time) on each Tender
Date the Trustee shall pay the purchase price to each Holder of a Note (or
portion thereof) tendered for

                                       26
<PAGE>
 
purchase. The Trustee shall pay the purchase price of each Note tendered by
check or draft mailed by the Trustee to the Holder of such Note at such Holder's
address appearing in the Note Register or, upon the written request of such
Holder accompanied by adequate instructions, as provided in Section 3.1(k), by
wire transfer to an account of such Holder maintained at a bank in the
continental United States or by any other method providing for payment in same-
day funds that is acceptable to the Trustee. The Trustee shall pay such purchase
price from money on deposit in the Note Purchase Fund in strict compliance with
the provisions thereof; provided, that the Trustee shall not pay the purchase
price of any Unsurrendered Note, unless and until the Holder of such
Unsurrendered Note presents such Unsurrendered Note to the Trustee or Tender
Agent. All Notes so purchased by the Trustee shall be delivered by the Trustee
or Tender Agent in accordance with this Section.

     (e) The Trustee and the Tender Agent shall hold all Notes delivered to them
pursuant to the Optional Tender or Mandatory Tender provisions hereof in trust
solely for the benefit of the respective Holders who shall have so delivered
such Notes until money representing the purchase price of such Notes shall have
been delivered to or for the account of such Holders.

     (f) Pledged Notes shall be held subject to the following terms and
conditions:

         (1) If, on the Tender Date, the Trustee receives written notice (a
     "Reimbursement Notice") from the Credit Obligor stating that it has been
     reimbursed for the drawing made under the Letter of Credit to pay the
     purchase price of such Pledged Notes and that the Letter of Credit has been
     reinstated to the extent of the amount so drawn to pay the purchase price
     of such Pledged Notes (except as limited by the provisions of the Letter of
     Credit relating to the "Maximum Interest Coverage", as defined therein),
     then such Notes shall no longer be considered "Pledged Notes" and the
     Trustee shall register such Notes as follows: (i) if such Notes have been
     remarketed by the Remarketing Agent, as directed by the Remarketing Agent,
     or (ii) if such Notes have not been remarketed, in the name of the Issuer.
     Notes registered as directed by the Remarketing Agent shall be delivered by
     the Trustee or Tender Agent to, or upon the direction of, the Remarketing
     Agent.  Notes registered in the name of the Issuer shall be held by the
     Trustee or Tender Agent for the account of the Issuer or, upon written
     request of the Issuer, shall be delivered to the Issuer.

         (2) If the Trustee does not receive a Reimbursement Notice by the
     close of business on the Tender Date, then the Trustee shall register such
     Pledged Notes in the name of the Credit Obligor, as pledgee.  Any Pledged
     Notes held by the Tender Agent shall be transmitted to the Trustee.  Such
     Pledged Notes shall be held by the Trustee on behalf of the Credit Obligor,
     as pledgee, until the Trustee receives a Reimbursement Notice with respect
     to such Notes or, upon written request of the Credit Obligor, shall be
     delivered to the Credit Obligor.  Upon receipt by the Trustee of a
     Reimbursement Notice with respect to any Pledged Notes, such Notes shall no
     longer be considered "Pledged Notes" and shall, subject to the provisions
     of subsection (h) of this Section, be

                                       27
<PAGE>
 
     disposed of as provided in paragraph (1) of this subsection (f).  The
     Trustee shall give prompt notice to the Tender Agent of the receipt of any
     Reimbursement Notice.

     (g) Notes purchased by the Trustee with money from any source other than
money drawn under the Letter of Credit shall be registered as follows: (i) if
such Notes have been remarketed by the Remarketing Agent, as directed by the
Remarketing Agent, or (ii) if such Notes have not been remarketed, in the name
of the Issuer.  Notes registered as directed by the Remarketing Agent shall be
delivered by the Trustee or Tender Agent to, or upon the direction of, the
Remarketing Agent.  Notes registered in the name of the Issuer shall be held by
the Trustee or Tender Agent for the account of the Issuer or, upon written
request of the Issuer, shall be delivered to the Issuer.

     (h) Any provision of this Indenture to the contrary notwithstanding, if the
Notes are purchased pursuant to the Optional Tender or Mandatory Tender
provisions of this Indenture and the Letter of Credit has expired or terminated
(or will expire or terminate within 30 days), unless a Substitute Letter of
Credit has been delivered to the Trustee in accordance with Section 3.10 hereof,
the Notes may not be sold or remarketed unless (i) the Issuer demonstrates to
the reasonable satisfaction of the Remarketing Agent that (A) disclosure
materials provided to prospective Noteholders are adequate under securities laws
and practices applicable to remarketing under similar circumstances and (B) that
the Notes will continue to receive at least an "investment grade" rating by each
Rating Agency (if any) then maintaining a rating on the Notes following the
expiration or termination of the Letter of Credit, or that the Notes will be
remarketed only to one or more financial institutions capable of assessing the
risks of ownership of the Notes, in which event any rating on the Notes may be
reduced or withdrawn and (ii) the Remarketing Agent, the Trustee and the Issuer
shall have received an Opinion of Counsel stating in effect that the remarketing
of the Notes under such circumstances will not be in violation of any federal or
state laws regarding registration of, or other filing in connection with, the
offering or sale of, securities.

     (i) Any Note remarketed by the Remarketing Agent that has been called for
prior redemption shall be delivered with a copy of the redemption notice, and
any Note as to which notice of Mandatory Tender has been given shall be
delivered with a copy of the notice of Mandatory Tender and any Note remarketed
by the Remarketing Agent that is subject to prepayment by acceleration under
Article IX hereof shall be delivered with a notice thereof, and in connection
with each such delivery the Remarketing Agent shall obtain an acknowledgement in
writing that each purchaser of such Notes understands the contents of such
notice.

     (j) Notes purchased pursuant to the Optional Tender or Mandatory Tender
provisions of this Indenture shall not, by virtue of such purchase, be deemed
paid or canceled, but shall remain Outstanding until Fully Paid.

                                       28
<PAGE>
 
     SECTION 3.7  EXECUTION, AUTHENTICATION, DELIVERY AND DATING
                  ----------------------------------------------

     (a) The Notes shall be executed on behalf of the Issuer by its President or
Vice-President under its corporate seal affixed or reproduced thereon and
attested by its Secretary or one of its Assistant Secretaries.  The signature of
any or all of these officers on the Notes may be manual or, to the extent
permitted by law, by facsimile.  In case any officer whose signature or a
facsimile of whose signature shall appear on the Notes shall cease to be such
officer before the authentication and delivery of such Notes, such signature or
such facsimile shall nevertheless be valid and sufficient for all purposes, the
same as if such officer had remained in office until authentication and
delivery.

     (b) At any time and from time to time after the execution and delivery of
this Indenture, the Issuer may deliver Notes executed by the Issuer to the
Trustee for authentication and registration and the Trustee or the Tender Agent
shall authenticate and register and deliver such Notes as in this Indenture
provided and not otherwise.

     (c) No Note shall be secured by, or be entitled to any lien, right or
benefit under, this Indenture or be valid or obligatory for any purpose, unless
there appears on such Note a certificate of authentication substantially in the
form provided for herein, executed by the Trustee or Tender Agent by the manual
signature of a duly authorized officer or other duly authorized signatory
thereof, and such certificate upon any Note shall be conclusive evidence, and
the only evidence, that such Note has been duly authenticated and delivered
hereunder.

     SECTION 3.8    TEMPORARY NOTES
                    ---------------

     (a) Pending the preparation of definitive Notes, the Issuer may execute,
and upon request of the Issuer the Trustee shall authenticate and deliver,
temporary Notes which are printed, lithographed, typewritten, mimeographed or
otherwise produced, in any denomination, substantially of the tenor of the
definitive Notes in lieu of which they are issued, with such appropriate
insertions, omissions, substitutions and other variations as the officers
executing such Notes may determine, as evidenced by their execution of such
Notes.

     (b) If temporary Notes are issued, the Issuer will cause definitive Notes
to be prepared without unreasonable delay.  After the preparation of definitive
Notes, the temporary Notes shall be exchangeable for definitive Notes upon
surrender of the temporary Notes at the Principal Office of the Trustee, without
charge to the Holder.  Upon surrender for cancellation of any one or more
temporary Notes the Issuer shall execute and the Trustee shall authenticate,
register and deliver in exchange therefor a like principal amount of definitive
Notes of authorized denominations.  Until so exchanged, temporary Notes shall in
all respects be entitled to the security and benefits of this Indenture.

                                       29
<PAGE>
 
     SECTION 3.9    AUTHENTICATION AND DELIVERY OF NOTES TO ORIGINAL PURCHASERS
                    -----------------------------------------------------------

     Upon the execution and delivery of this Indenture, Notes in the aggregate
principal amount authorized in this Article may be executed by the Issuer and
delivered to the Trustee for authentication and registration, and such Notes
shall thereupon be authenticated, registered and delivered by the Trustee to the
original purchaser or purchasers thereof.

     SECTION 3.10   LETTER OF CREDIT
                    ----------------

     (a) Simultaneously with the delivery of the Notes to the original
purchasers thereof, the Issuer has caused the Credit Obligor to deliver to the
Trustee the Letter of Credit.  The Letter of Credit will terminate on the Stated
Expiration Date, subject to extension (if applicable) by the Credit Obligor.

     (b) The Issuer may at any time and from time to time deliver a Substitute
Letter of Credit to the Trustee in substitution for the Existing Letter of
Credit, provided that

         (1) Notice of any intended delivery of a Substitute Letter of Credit
     and the proposed issuer and effective date thereof is given (i) by the
     Issuer to the Trustee not less than 45 days prior to the proposed effective
     date of such Substitute Letter of Credit (unless a shorter period shall be
     satisfactory to the Trustee and enable the Trustee to comply with this
     Section), and (ii) by the Trustee to the Holders, or, if the Securities
     Depository or Securities Depository Nominee is the Holder, as provided in
     the Letter of Representation, not less than 30 days prior to the proposed
     effective date of such Substitute Letter of Credit; and

         (2) such Substitute Letter of Credit complies with the applicable
     conditions set forth in subsection (d) of this Section and

         (3) simultaneously with the delivery of such Substitute Letter of
     Credit the Issuer delivers to the Trustee any related documentation
     required by subsection (e) of this Section (the "Related Documentation").

     (c) The Issuer may, but shall not be required to, deliver a Substitute
Letter of Credit to the Trustee prior to the expiration of the then Existing
Letter of Credit; provided, however, that if a Substitute Letter of Credit and
the Related Documentation are not delivered to the Trustee not less than 30 days
prior to the Stated Expiration Date of the then Existing Letter of Credit, the
Notes shall be subject to a Mandatory Tender.

     (d) Each Substitute Letter of Credit delivered to the Trustee pursuant to
this Section must meet the following criteria:

         (1) such Substitute Letter of Credit must have an effective date not
     less than 30 days prior to the stated Expiration Date of the then Existing
     Letter of Credit,

                                       30
<PAGE>
 
         (2) such Substitute Letter of Credit must be substantially in the same
     form and of the same tenor as the Letter of Credit, except that such
     Substitute Letter of Credit must provide for the payment of interest on the
     Notes (or the interest portion of the purchase price of Notes tendered, or
     deemed tendered, for purchase) at the Maximum Rate computed on the interest
     rate basis then applicable as provided in Section 3.1(g), for not less than
     56 days ,

         (3) if such Substitute Letter of Credit is being delivered in
     connection with a conversion of the interest rate on the Notes to a Fixed
     Rate, the effective date shall be not later than the Conversion Date,

         (4) if such Substitute Letter of Credit will be effective during a
     Fixed Rate Period, the interest to be provided for shall be at the actual
     Fixed Rate on the Notes (i) in the case of a Fixed Rate Period of less than
     6 months, for the number of days in the Fixed Rate Period plus 15 (but not
     less than 56 days), and (ii) in the case of a Fixed Rate Period of 6 months
     or more, for 195 days, and if the Notes are subject to optional redemption,
     such Substitute Letter of Credit must provide for payment of the maximum
     redemption premium payable with respect to the Notes, and

         (5) such Substitute Letter of Credit must have a Stated Expiration
     Date that is (i) the same calendar day in the same calendar month as the
     expiration date of the then existing Letter of Credit being replaced and
     (ii) not sooner than one year after its effective date; provided, however,
     that any Substitute Letter of Credit that is to be substituted for an
     Existing Letter of Credit that is effective during a Fixed Rate Period must
     have a Stated Expiration Date not sooner than the Stated Expiration Date of
     such Existing Letter of Credit.

     (e) Each Substitute Letter of Credit delivered to the Trustee must be
accompanied by the following, to the extent applicable:

         (1) if any Rating Agency maintains a rating with respect to the Notes
     at the time of delivery of such Substitute Letter of Credit to the Trustee,
     written evidence from each such Rating Agency to the effect that the
     substitution of the proposed Substitute Letter of Credit will not, by
     itself, result in a reduction or withdrawal of its rating then assigned to
     the Notes,

         (2) an Opinion of Counsel for the issuer of such Substitute Letter of
     Credit stating in effect that such Substitute Letter of Credit (1) is a
     valid and binding obligation of the issuer thereof and (2) is exempt from
     registration under the Securities Act of 1933, as amended.

     (f) At the close of business on the effective date of any Substitute Letter
of Credit, the Trustee shall return the Existing Letter of Credit to the issuer
thereof, provided that any draws on such Existing Letter of Credit made on or
prior to such date have been honored.  Any

                                       31
<PAGE>
 
draws that, under the terms of the Indenture, are to be made on the Letter of
Credit on or prior to the effective date of a Substitute Letter of Credit shall
be made under the Existing Letter of Credit.  Not later than the close of
business on the effective date of a Substitute Letter of Credit, the Issuer
shall deliver to the Trustee written evidence that all obligations of the Issuer
to the issuer of the Existing Letter of Credit for reimbursement of amounts
drawn thereunder have been satisfied, and upon receipt of such evidence any
Pledged Notes held by the Trustee or the Tender Agent for the benefit of the
issuer of the Existing Letter of Credit shall be delivered to, or upon the order
of, the Issuer.

     (g) If the Trustee accepts a Substitute Letter of Credit as herein
provided, then, unless such Substitute Letter of Credit was described in a
notice of Mandatory Tender, the Trustee shall send written notice of such
substitution to the Noteholders.

     (h) If Notes are redeemed prior to maturity, the Trustee shall take any
action necessary to reduce the interest portion of the Letter of Credit to the
Maximum Interest Coverage, as therein defined.

     SECTION 3.11   ADDITIONAL CREDIT ENHANCEMENT

     At the cost and expense of the Issuer, the Issuer may deliver to the
Trustee, and the Trustee shall accept, security for the payment of the Notes in
addition to the Letter of Credit then in effect, in the form of a confirmation
of such Letter of Credit, an additional standby letter of credit, insurance,
surety bonds, or otherwise.


                                  ARTICLE IV

                     REGISTRATION, BOOK-ENTRY SYSTEM, AND
                    GENERAL PROVISIONS REGARDING THE NOTES
                    --------------------------------------

     SECTION 4.1    REGISTRATION OF NOTES
                    ---------------------

     The Issuer shall cause to be kept at the Designated Office of the Trustee a
register (the "Note Register") in which, subject to such reasonable regulations
               -------------                                                   
as it may prescribe, the Issuer shall provide for the registration of Notes and
registration of transfers of Notes entitled to be registered or transferred as
herein provided.  The Trustee is hereby appointed "Note Registrar" for the
                                                   --------------         
purpose of registering Notes and transfers of Notes as herein provided.

     SECTION 4.2    BOOK-ENTRY SYSTEM
                    -----------------

     (a) The Notes shall be initially issued pursuant to a Book-Entry System
administered by the Securities Depository with no physical distribution of any
Note to any person.  One Note for each maturity will be issued, registered in
the name of the Securities Depository Nominee, and immobilized in the custody of
the Securities Depository.  Beneficial ownership interests in

                                       32
<PAGE>
 
the Notes may be purchased by or through Direct Participants.  The holders of
these beneficial ownership interests in the Notes are referred to as the
"Beneficial Owners".  The Beneficial Owners will not receive certificated bonds
------------------                                                             
representing their beneficial ownership interests.  Ownership of the interests
in Notes in Authorized Denominations will be evidenced, and transfers of
interests in the Notes will be effected, on the records of the Securities
Depository and the Direct Participants and Indirect Participants pursuant to
rules and procedures established by the Securities Depository.  During a period
in which the Book-Entry System is in effect for the Notes the Issuer, the
Trustee, and the Remarketing Agent shall treat the Securities Depository or the
Securities Depository Nominee as the only registered owner of the Notes for all
purposes under this Indenture including receipt of all principal of, purchase
price of, premium (if any) and interest on the Notes, receipt of notices,
voting, and requesting or directing the Trustee or Issuer to take or not to
take, or consenting to, certain actions under this Indenture.  In the event the
Securities Depository or the Securities Depository Nominee assigns its rights to
consent or vote under this Indenture to any Direct Participant or Indirect
Participant, the Issuer, the Trustee, and the Remarketing Agent shall treat such
assignee or assignees as the only registered owner or owners of the Notes for
the purpose of exercising such rights so assigned.

     (b) During a period in which the Book-Entry System is in effect for the
Notes, payments of principal, purchase price, interest, and redemption premium,
if any, with respect to the Notes will be paid by the Trustee directly to the
Securities Depository, or the Securities Depository Nominee, as provided in the
Letter of Representation; provided, that payment of the principal of (premium,
if any) and interest on such Notes due at final maturity or upon redemption in
whole of any of such Notes shall be made only upon surrender thereof at the
principal office of the Trustee.  The Securities Depository and the Direct
Participants and the Indirect Participants shall be responsible for the
disbursement of such payments to the Beneficial Owners.  The Securities
Depository will disburse such payments to Direct Participants and such payments
will in turn be remitted by Direct Participants and, where appropriate, Indirect
Participants, to the Beneficial Owners.  All such payments to the Securities
Depository or the Securities Depository Nominee of principal of, purchase price
of, premium (if any) and interest on the Notes on behalf of the Issuer or the
Trustee shall be valid and effectual to satisfy and discharge the liability of
the Issuer and the Trustee to the extent of the amounts so paid, and the Issuer,
the Remarketing Agent and the Trustee shall not be responsible or liable for
payment to any Beneficial Owner by the Securities Depository or by any Direct
Participant or by any Indirect Participant, or for sending transaction
statements or for maintaining, supervising or reviewing records maintained by
the Securities Depository or Direct Participants or Indirect Direct
Participants.

     (c) Transfers of ownership interests in the Notes by the Beneficial Owners
thereof, conveyance of notices and other communications by the Securities
Depository to Direct Participants, by Direct Participants to Indirect
Participants, and by Direct Participants and Indirect Participants to Beneficial
Owners of the Notes, will be governed by arrangements among the Securities
Depository, Direct Participants, Indirect Participants and the Beneficial
Owners, subject to any statutory and regulatory requirements as may be in effect
from time to time.  For

                                       33
<PAGE>
 
every transfer and exchange of beneficial ownership in the Notes, the Beneficial
Owners may be charged a sum sufficient to cover any tax, fee or other
governmental charge that may be imposed in relation thereto.

     (d) Redemption notices respecting the Notes held by the Securities
Depository shall be sent to the Securities Depository Nominee by the Trustee and
redemption of Notes shall be effected as provided in Article V.

     (e) A Beneficial Owner shall give notice of its election to have its
interests in the Notes purchased through its Direct Participant or Indirect
Participant to the Trustee as provided in this Indenture and shall effect
delivery of such interest by causing said Direct Participant or Indirect
Participant to transfer the interest of such Beneficial Owner in the Notes to
the Trustee (or Tender Agent) on the records of the Securities Depository.  The
requirement for physical delivery of Notes in connection with an Optional Tender
or a Mandatory Tender will be satisfied when the ownership rights in the Notes
are transferred on the records of the Securities Depository

     (f) In the event that (1) the Securities Depository ceases to act as the
securities depository for the Notes or (2) the Issuer determines that the
continuation of the Book-Entry System for the Notes would adversely affect the
interests of the Beneficial Owners of the Notes, the Issuer shall discontinue
the Book-Entry System.  If the Issuer fails to appoint another qualified
securities depository to replace the then acting Securities Depository, the
Issuer will cause the Trustee to authenticate and deliver fully registered
certificated Notes to each Beneficial Owner in evidence of the ownership
interests thereof.  If the Book-Entry System is discontinued, payments to and
transfers by the Beneficial Owners shall be governed by the provisions set forth
in this Indenture with respect thereto.

     (g) The Issuer and the Remarketing Agent may enter into a custody agreement
with any bank or trust company serving as custodian (which may be the Trustee
serving in the capacity of custodian) to provide for a Book-Entry System or
similar method for the registration and transfer of the Notes.

     (h) During the period in which a Book-Entry System is in effect for the
Notes in accordance herewith, the provisions of this Indenture and the Notes
shall be construed in accordance with the Letter of Representation and to give
full effect to such Book-Entry System.

     (i) The Beneficial Owners of all the Notes, by their acquisition of any
beneficial interest in a Note or Notes, and the Securities Depository, the
Securities Depository Nominee, and all Direct Participants and all Indirect
Participants severally agree that the Issuer, the Remarketing Agent, and the
Trustee shall not have any responsibility or obligation to any Direct
Participant or any Indirect Participant or any Beneficial Owner with respect to
(1) the accuracy of any records maintained by the Securities Depository or any
Direct Participant or any Indirect Participant; (2) the payment by the
Securities Depository or any Direct Participant or any Indirect Participant of
any amount due to any Beneficial Owner in respect of the principal of,

                                       34
<PAGE>
 
purchase price of, premium (if any) and interest on the Notes; (3) the delivery
or timeliness of delivery by the Securities Depository or any Direct Participant
or any Indirect Participant of any notice due to any Beneficial Owner which is
required or permitted under the terms of this Indenture to be given to
Beneficial Owners; or (4) any consent given or other action taken by the
Securities Depository, or the Securities Depository Nominee, as owner.

     SECTION 4.3    DISCONTINUATION OF BOOK-ENTRY SYSTEM; REGISTRATION, TRANSFER
                    ------------------------------------------------------------
AND EXCHANGE OF NOTES; REPLACEMENT OF MUTILATED, LOST, DESTROYED OR STOLEN NOTES
--------------------------------------------------------------------------------

     (a) The Securities Depository may determine to discontinue the Book-Entry
System with respect to the Notes at any time upon notice to the Issuer, the
Remarketing Agent, and the Trustee and upon discharge of its responsibilities
with respect thereto under applicable law.  Upon such notice and compliance with
law the Book-Entry System for the Notes will be discontinued unless a successor
securities depository is appointed by the Issuer.  In addition, the Issuer may
discontinue the Book-Entry System for the Notes at any time by reasonable notice
to the Securities Depository and to the Beneficial Owners.

     (b) In the event the Book-Entry System for the Notes is discontinued,
Notes in certificated form in Authorized Denominations will be physically
distributed to the Beneficial Owners thereof and the Notes will be registered in
the names of the owners thereof on the registration books of the Trustee
pertaining thereto, the Trustee will make payments of principal of, purchase
price of, premium (if any) and interest on the Notes to the registered owners
thereof as provided in the Notes and the Indenture, and the following provisions
with respect to registration, transfer and exchange of Notes by the registered
owners of the Notes shall apply:

         (1) Upon surrender for transfer of any Note at the Designated Office
     of the Trustee or the Principal Office of the Tender Agent, the Issuer
     shall execute, and the Trustee or Tender Agent shall authenticate and
     deliver, in the name of the designated transferee or transferees, one or
     more new Notes of the same maturity, of any Authorized Denominations and of
     a like aggregate principal amount.

         (2) At the option and expense of the Holder, Notes may be exchanged
     for other Notes of the same maturity, of any Authorized Denominations and
     of a like aggregate principal amount, upon surrender of the Notes to be
     exchanged at the Designated Office of the Trustee or at the Principal
     Office of the Tender Agent.  Whenever any Notes are so surrendered for
     exchange, the Issuer shall execute, and the Trustee or the Tender Agent
     shall authenticate and deliver, the Notes which the Noteholder making the
     exchange is entitled to receive.

         (3) All Notes surrendered upon any exchange or transfer provided for
     in this Indenture shall be promptly canceled by the Trustee or the Tender
     Agent.

                                       35
<PAGE>
 
         (4) All Notes issued upon any transfer or exchange of Notes shall be
     the valid obligations of the Issuer and entitled to the same security and
     benefits under this Indenture as the Notes surrendered upon such transfer
     or exchange.

         (5) Every Note presented or surrendered for transfer or exchange shall
     (if so required by the Trustee or the Tender Agent) be duly endorsed, or be
     accompanied by a written instrument of assignment or transfer in form
     satisfactory to the Trustee or the Tender Agent duly executed, by the
     Holder thereof or his attorney duly authorized in writing.

         (6) The Issuer shall not be required (i) to transfer or exchange any
     Note during a period beginning at the opening of business 15 days before
     the day of the mailing of a notice of redemption of Notes and ending at the
     close of business on the day of such mailing, or (ii) to transfer or
     exchange any Note so selected for redemption in whole or in part, or (iii)
     to exchange any Note during a period beginning at the opening of business
     on any Regular Record Date for such Note and ending at the close of
     business on the relevant Interest Payment Date therefor.

         (7) If (i) any mutilated Note is surrendered to the Trustee, or the
     Issuer and the Trustee receive evidence to their satisfaction of the
     destruction, loss or theft of any Note, and (ii) there is delivered to the
     Issuer and the Trustee such security or indemnity as may be required by
     them to save each of them harmless, then, in the absence of notice to the
     Issuer or the Trustee that such Note has been acquired by a bona fide
     purchaser, the Issuer shall execute and upon its request the Trustee shall
     authenticate and deliver, in exchange for or in lieu of any such mutilated,
     destroyed, lost or stolen Note, a new Note of like tenor, principal amount,
     maturity, and bearing a number not contemporaneously outstanding.

         (8) Upon the transfer or exchange of any Note, or the issuance of any
     new Note under this Section, the Holder shall pay a sum sufficient to cover
     any tax or other governmental charge that may be imposed in relation
     thereto and any other expenses connected therewith.

         (9) Every new Note issued pursuant to this Section in lieu of any
     mutilated, destroyed, lost or stolen Note shall constitute an original
     additional contractual obligation of the Issuer, whether or not the
     mutilated, destroyed, lost or stolen Note shall be at any time enforceable
     by anyone, and shall be entitled to all the security and benefits of this
     Indenture equally and ratably with all other Outstanding Notes.

         (10) The provisions of this Section are exclusive and shall preclude
     (to the extent lawful) all other rights and remedies with respect to the
     replacement or payment of mutilated, destroyed, lost or stolen Notes.

                                       36
<PAGE>
 
     SECTION 4.4    PAYMENT OF INTEREST ON NOTES; INTEREST RIGHTS PRESERVED
                    -------------------------------------------------------

     (a)  Interest on any Note which is payable, and is punctually paid or duly
provided for, on any Interest Payment Date shall be paid to the person in whose
name that Note is registered at the close of business on the Regular Record Date
for such Interest Payment Date.

     (b)  Any interest on any Note which is payable, but is not punctually paid
or duly provided for, on any Interest Payment Date (herein called "Defaulted
Interest") shall forthwith cease to be payable to the Holder on the relevant
Regular Record Date solely by virtue of such Holder having been such Holder; and
such Defaulted Interest shall be paid by the Issuer to the persons in whose
names such Notes are registered at the close of business on a Special Record
Date for the payment of such Defaulted Interest, which shall be fixed in the
following manner.  The Issuer shall notify the Trustee in writing of the amount
of Defaulted Interest proposed to be paid on each Note and the date of the
proposed payment (which date shall be such as will enable the Trustee to comply
with the provisions hereof), and at the same time the Issuer shall deposit with
the Trustee an amount of money equal to the aggregate amount proposed to be paid
in respect of such Defaulted Interest or shall make arrangements satisfactory to
the Trustee for such deposit prior to the date of the proposed payment, such
money when deposited to be held in trust for the benefit of the persons entitled
to such Defaulted Interest as in this subsection provided and not to be deemed
part of the Trust Estate.  Thereupon the Trustee shall fix a Special Record Date
for the payment of such Defaulted Interest which shall be not more than 15 nor
less than 10 days prior to the date of the proposed payment and not less than 10
days after the receipt by the Trustee of the notice of the proposed payment.
The Trustee shall promptly notify the Issuer of such Special Record Date and, in
the name and at the expense of the Issuer, shall cause notice of the proposed
payment of such Defaulted Interest and the Special Record Date therefor to be
mailed, first-class postage prepaid, to the Noteholder or Noteholders at the
address thereof appearing in the Note Register not less than 10 days prior to
such Special Record Date.  Notice of the proposed payment of such Defaulted
Interest and the Special Record Date therefor having been mailed as aforesaid,
such Defaulted Interest shall be paid to the persons in whose names the Notes
are registered on such Special Record Date.

     (c)  Subject to the foregoing provisions of this Section, each Note
delivered under this Indenture upon transfer of or in exchange for or in lieu of
any other Note shall carry all the rights to interest accrued and unpaid, and to
accrue, which were carried by such other Note and each such Note shall bear
interest from such date that neither gain nor loss in interest shall result from
such transfer, exchange or substitution.

     SECTION 4.5    PERSONS DEEMED OWNERS
                    ---------------------

     The Issuer, the Trustee and any agent of the Issuer or the Trustee may
treat the person in whose name any Note is registered as the owner of such Note
for the purpose of receiving payment of Debt Service on such Note and for all
other purposes whatsoever whether or not such Note is overdue, and, to the
extent permitted by law, neither the Issuer, the Trustee nor any such agent
shall be affected by notice to the contrary.

                                       37
<PAGE>
 
     SECTION 4.6    PAYING AGENT
                    ------------

     The Debt Service on the Notes shall, except as otherwise provided herein,
be payable at the Designated Office of the Trustee.  The Trustee is hereby
appointed as Paying Agent for the purpose of paying Debt Service on the Notes on
behalf of the Issuer.

     SECTION 4.7    PAYMENTS DUE ON NON-BUSINESS DAYS
                    ---------------------------------

     If any payment on the Notes is due on a day which is not a Business Day,
such payment may be made on the first succeeding day which is a Business Day and
interest shall accrue and be payable for the period to the then next succeeding
Business Day.

     SECTION 4.8    CANCELLATION
                    ------------

     All Notes surrendered for payment, redemption, transfer or exchange shall
be promptly canceled or destroyed by the Trustee.  No Note shall be
authenticated in lieu of or in exchange for any Note canceled as provided in
this Section, except as expressly provided by this Indenture.


                                   ARTICLE V

                              REDEMPTION OF NOTES

     SECTION 5.1    WHEN NOTES ARE SUBJECT TO REDEMPTION
                    ------------------------------------

     (a)  The Notes shall be subject to extraordinary, optional and mandatory
redemption as provided in the form thereof set forth on Exhibit A hereto.

     (b)  Notes shall be redeemed in accordance with the mandatory redemption
provisions of the Notes without any direction from or consent by the Issuer.

     SECTION 5.2    ELECTION TO REDEEM; NOTICE TO TRUSTEE
                    -------------------------------------

     The election of the Issuer to exercise any right of optional redemption
shall be given by written notice to the Trustee from an Authorized Issuer
Representative not more than 60 and not less than 30 days prior to the proposed
redemption date and, if required by this Indenture, shall be accompanied by the
written consent of the Credit Obligor.  In case of any redemption at the option
of the Issuer of less than all of the principal amount of the Outstanding Notes,
the Authorized Issuer Representative shall, at least 60 days prior to the date
fixed by the Issuer for redemption of Notes (unless a shorter notice shall be
satisfactory to the Trustee) notify the Trustee of such redemption date and of
the principal amount of Notes to be redeemed.

                                       38
<PAGE>
 
     SECTION 5.3    SELECTION OF NOTES TO BE REDEEMED
                    ---------------------------------

     (a)  If less than all of the Outstanding Notes are to be redeemed during a
period in which the Book-Entry System is in effect for the Notes, the Trustee
shall give notice to the Securities Depository in accordance with the Letter of
Representation, and the Securities Depository shall determine the amount of the
interest of each Direct Participant in the Notes to be redeemed, on the basis of
the smallest Authorized Denomination of the Notes, by lot or by such other
method as the Securities Depository shall deem fair and appropriate.  The
Securities Depository shall so determine the amount of the interest of each
Direct Participant in the Notes to be redeemed in such manner so as to assure
that after such redemption no Beneficial Owner shall retain a beneficial
ownership interest in the Notes in an aggregate amount less than an Authorized
Denomination.

     (b)  If less than all the Outstanding Notes are to be redeemed during a
period in which the Book-Entry System is not in effect for the Notes, the
Trustee shall select the particular Notes to be redeemed not less than 30 nor
more than 60 days prior to the redemption date from the Outstanding Notes which
have not previously been called for redemption, on the basis of the smallest
Authorized Denomination of the Notes, by lot or by such method as the Trustee
shall deem fair and appropriate.  The Trustee shall so select Notes for
redemption in such manner so as to assure that after such redemption no
Noteholder shall retain Notes in an aggregate amount less than an Authorized
Denomination.

     (c)  The Trustee shall promptly notify the Issuer in writing of the Notes
selected for redemption and, in the case of any Note selected for partial
redemption, the principal amount thereof to be redeemed.

     (d)  For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Notes shall relate, in
the case of any Note redeemed or to be redeemed only in part, to the portion of
the principal of such Note which has been or is to be redeemed.

     SECTION 5.4    NOTICE OF REDEMPTION
                    --------------------

     (a)  Notice of any intended redemption shall be given by the Trustee to the
Holder of each Note, all or a portion of the principal of which is to be
redeemed, not less than 30 days prior to the proposed redemption date by United
States registered or certified mail or, if the Securities Depository or
Securities Depository Nominee is the Holder, at the times and in the manner as
provided in the Letter of Representation, at the address of such Holder
appearing in the Note Register; provided, however, any Holder may waive the
requirement of notice as to the redemption (in whole or in part) of the Note or
Notes thereof.  During a period in which the Book-Entry System is in effect for
the Notes, notice of any intended redemption may be given to each Beneficial
Owner, all or any portion of the interest of which in the Notes is to be
redeemed, by the Direct Participants and, where appropriate, by the Indirect
Participants, pursuant to arrangements among said parties, subject to statutory
and regulatory requirements

                                       39
<PAGE>
 
in effect from time to time; provided, however, any Beneficial Owner may waive
the requirement of notice as to the redemption of the interest thereof in the
Notes.

     (b)  All notices of redemption shall state:

          (1)  the redemption date,

          (2)  the redemption price,

          (3)  the principal amount of Notes to be redeemed, and, if less than
     all Outstanding Notes are to be redeemed, the respective principal amounts
     of the Notes to be redeemed,

          (4)  that on the redemption date the redemption price of each of the
     Notes to be redeemed will become due and payable and that the interest
     thereon shall cease to accrue from and after said date, and

          (5)  the place or places where the Notes to be redeemed are to be
     surrendered for payment of the redemption price.

     (c)  Notice of redemption of Notes to be redeemed shall be given by the
Trustee in the name of the Issuer and at the expense of the Issuer.

     (d)  The Issuer and the Trustee shall, to the extent practical under the
circumstances, comply with the standards set forth in Securities and Exchange
Commission's Exchange Act Release No. 23856 regarding redemption notices,
provided that their failure to do so shall not in any manner defeat the
effectiveness of a call for redemption if notice thereof is given as prescribed
in this Section.

     SECTION 5.5    DEPOSIT OF REDEMPTION PRICE
                    ---------------------------
 
     Prior to any redemption date, the Issuer shall deposit with the Trustee
pursuant to Section 8.2 an amount of money sufficient to pay the redemption
price of all the Notes which are to be redeemed on that date.  Such money shall
be held in trust for the benefit of the persons entitled to such redemption
price and shall not be deemed to be part of the Trust Estate.

     SECTION 5.6    NOTES PAYABLE ON REDEMPTION DATE
                    --------------------------------

     (a)  Notice of redemption having been given as aforesaid, the Notes to be
redeemed shall, on the redemption date, become due and payable at the redemption
price therein specified and from and after such date (unless the Issuer shall
default in the payment of the redemption price) such Notes shall cease to bear
interest.  Upon presentation of any such Note for redemption, or compliance with
the requirements of the Securities Depository with respect to redemption in
part, in accordance with said notice such Note shall be paid by the Issuer at
the

                                       40
<PAGE>
 
redemption price.  Installments of interest due on or prior to the redemption
date shall be payable to the Holders of the Notes registered as such on the
relevant Record Dates according to the terms of such Notes and the provisions of
Section 4.4.

     (b)  If any Note called for redemption shall not be paid upon redemption,
the principal (and premium, if any) shall, until paid, bear interest from the
redemption date at the Post-Default Rate.

     SECTION 5.7    NOTES REDEEMED IN PART
                    ----------------------

     (a)  During a period in which the Book-Entry System is in effect for the
Notes, the recordation and evidence of any reduction in the aggregate principal
amount of the Notes as a result of the redemption of a portion thereof shall be
made in accordance with the Letter of Representation and the rules and
procedures of the Securities Depository with respect thereto from time to time
in effect.

     (b)  During a period in which the Book-Entry System is not in effect for
the Notes, unless otherwise provided herein, any Note which is to be redeemed
only in part shall be surrendered at the Designated Office of the Trustee (with,
if the Issuer or the Trustee requires, due endorsement by, or a written
instrument of assignment or transfer in form satisfactory to the Issuer and the
Trustee duly executed by the Holder thereof or his attorney duly authorized in
writing) and the Issuer shall execute and the Trustee shall authenticate and
deliver to the Holder of such Note, without service charge, a new Note or Notes
of any authorized denomination or denominations as requested by such Holder in
aggregate principal amount equal to and in exchange for the unredeemed portion
of the principal of the Note surrendered.


                                  ARTICLE VI

                       APPLICATION OF PROCEEDS OF NOTES
                       --------------------------------

     SECTION 6.1    APPLICATION OF PROCEEDS
                    -----------------------

     (a)  Any accrued interest received upon the sale of the Notes shall be
deposited in the Note Fund.

     (b)  On the date of issuance of the Notes, the proceeds of the Notes shall
be delivered to the Trustee and deposited by the Trustee in the Proceeds Fund
pursuant to Section 6.2 and applied as provided therefor.

     SECTION 6.2    PROCEEDS FUND; DISBURSEMENTS
                    ----------------------------

     (a)  There is hereby established with the Trustee a trust fund for the
account of the Issuer to be designated the "Proceeds Fund".

                                       41
<PAGE>
 
     (b)  The moneys in the Proceeds Fund shall be paid out by the Trustee upon
receipt of and in accordance with one or more requisition or payment requests
substantially in the form of Exhibit A hereto appropriately completed and signed
on behalf of the Issuer by any Authorized Issuer Representative and approved by
the Credit Obligor by endorsement thereon.  It is anticipated by the Issuer and
the Trustee that all or substantially all of the Proceeds Fund will be paid out
to repay Issuer indebtedness being refinanced with the proceeds of the Notes and
expenses of the issuance of the Notes, and that the balance will be paid out to
the Issuer to be used for corporate purposes.

     (c)  The Trustee shall not be liable for any misapplication of moneys in
the Proceeds Fund if disbursed pursuant to the provisions of this Section and
without actual knowledge that such disbursement constitutes a misapplication of
funds.

                                  ARTICLE VII

                                   REVENUES
                                   --------


     SECTION 7.1    NOTE FUND AND LETTER OF CREDIT DRAWS
                    ------------------------------------

     (a)  There is hereby established a special trust fund in the name of the
Issuer which shall be designated the "Variable/Fixed Rate Credit Enhanced Notes
Note Fund" (the "Note Fund").  The Trustee shall be the depository, custodian
and disbursing agent for the Note Fund.  The money in the Note Fund shall be
used (i) to pay Debt Service on the Notes as the same shall become due and
payable or (ii) to reimburse the Credit Obligor for amounts drawn under the
Letter of Credit, as provided in subsection (c) of this Section.

     (b)  There shall be deposited in the Note Fund, as and when received:

          (1)  in the manner provided in subsection 7.1(c) 7.2(c), all money
     drawn under the Letter of Credit for the purpose of paying the principal
     amount of the Notes and the premium (if any) on the Notes, and the interest
     due thereon on any Note Payment Date,

          (2)  All payments with respect to Debt Service on the Notes made by
     the Issuer pursuant to Section 8.2(a),

          (3)  All other money required to be deposited in the Note Fund
     pursuant to this Indenture, and

          (4)  All other money received by the Trustee when accompanied by
     written directions that such money is to be deposited in the Note Fund.

                                       42
<PAGE>
 
     (c)  If the Letter of Credit is then in effect, on or before each Note
Payment Date, the Trustee shall, without making any prior claim or demand upon
the Issuer for the payment of any amounts under Section 8.2(a), submit a draft
under the Letter of Credit in accordance with the terms thereof (i) in an amount
equal to the amount of Debt Service due on such Note Payment Date on Notes other
than Pledged Notes and (ii) by such time (as stated in the Letter of Credit) in
advance as shall enable the Trustee to pay said Debt Service from the proceeds
of such draft on said Note Payment Date in accordance with the provisions of
this Indenture with respect thereto.  Any such money drawn under the Letter of
Credit shall be deposited and held in a separate, segregated account in the Note
Fund, and shall not be commingled with other money in the Note Fund and no
investment thereof shall be made.  If money from any source other than the
Letter of Credit was, at the time of such draw, on deposit in the Note Fund and
available for the payment of Debt Service on Notes other than Pledged Notes, the
Trustee shall nevertheless draw under the Letter of Credit to make such payment
of Debt Service in the amount of the Debt Service to be so paid, and the money
available from such other source shall, to the extent of the amount paid by the
Credit Obligor against such draw, be paid to the Credit Obligor.  All money so
drawn under the Letter of Credit shall be used to pay Debt Service on Notes
other than Pledged Notes; Debt Service on Pledged Notes shall be paid with money
deposited in the Note Fund from any source other than the Letter of Credit.

     (d)  The Issuer hereby authorizes and directs the Trustee to withdraw
sufficient money from the Note Fund to pay Debt Service on the Notes as the same
become due and payable, whether at maturity, by call for redemption,
acceleration, or otherwise, which authorization and direction the Trustee hereby
accepts.  Funds for such payments of Debt Service on the Notes shall be derived
from the following sources in the order of priority indicated:
 
          (1)  First:  money drawn by the Trustee under the Letter of Credit,
               -----                                                         
     and

          (2)  Second:  all other money on deposit in the Note Fund.
               ------                                               

     (e)  Debt Service due on all Pledged Notes shall be paid to the Credit
Obligor.

     SECTION 7.2    NOTE PURCHASE FUND
                    ------------------

     (a)  There is hereby established a special trust fund in the name of the
Issuer which shall be designated the "Variable/Fixed Rate Credit Enhanced Notes
Note Purchase Fund" (the "Note Purchase Fund").  The Trustee shall be the
custodian for the Note Purchase Fund, and money in such Fund may be disbursed by
the Trustee as hereinafter provided.  The money in the Note Purchase Fund shall
be used (i) to pay the purchase price of Notes due on any Tender Date or (ii) to
reimburse the Credit Obligor for amounts drawn under the Letter of Credit, as
provided in subsection (c) of this Section.

                                       43
<PAGE>
 
     (b)  There shall be deposited in the Note Purchase Fund, as and when
received:

          (1)  in the manner provided in subsection 7.1(c) 7.2(c), all money
     drawn by the Trustee under the Letter of Credit for the purpose of paying
     the purchase price of Notes due on any Tender Date,

          (2)  all payments with respect to the purchase price of Tendered Notes
     made by the Issuer pursuant to Section 8.2(b).

          (3)  the proceeds of any remarketing of Notes by the Remarketing
     Agent,

          (4)  all other money required to be deposited in the Note Purchase
     Fund pursuant to this Indenture, and

          (5)  all other money received by the Trustee when accompanied by
     directions that such money is to be deposited in the Note Purchase Fund.

     (c)  If the Letter of Credit is then in effect, on or before each Tender
Date, the Trustee shall, without making any prior claim or demand upon the
Issuer for payments pursuant to Section 8.2(a) with respect to the purchase
price of Tendered Notes, and without taking into account any proceeds
anticipated (but not then received) from the remarketing of Notes by the
Remarketing Agent, submit a draft under the Letter of Credit in accordance with
the terms thereof (i) in an amount equal to the purchase price of all Notes to
be purchased on such Tender Date and (ii) by such time (as stated in the Letter
of Credit) in advance as shall enable the Trustee to pay said purchase price
from the proceeds of such draft on said Tender Date in accordance with the
provisions of this Indenture with respect thereto. Any such money drawn under
the Letter of Credit shall be deposited and held in a separate, segregated
account in the Note Purchase Fund, and shall not be commingled with other money
in the Note Purchase Fund and no investment thereof shall be made. Except as
otherwise provided in Section 7.2(f), if money from any source other than the
Letter of Credit was, at the time of such draw, on deposit in the Note Purchase
Fund and available for the payment of such purchase price, the Trustee shall
nevertheless draw under the Letter of Credit to make the payment of such
purchase price in the amount of such purchase price to be so paid, and any money
available in the Note Purchase Fund on such Tender Date from such other sources
(including without limitation, proceeds of remarketing of Notes) shall, to the
extent of the amount paid by the Credit Obligor against such draw, be paid to
the Credit Obligor. If proceeds from the remarketing of Notes are deposited in
the Note Purchase Fund after such Tender Date, the Trustee shall pay such
proceeds to the Credit Obligor.

     (d)  The Trustee is hereby authorized and directed to withdraw sufficient
money from the Note Purchase Fund to pay the purchase price of Notes due on any
Tender Date.  Except as otherwise provided in Section 7.2(f), funds for such
payments shall be derived from the following sources in the order of priority
indicated:

                                       44
<PAGE>
 
          (1)  First:    money drawn by the Trustee under the Letter of Credit,
               -----
 
          (2)  Second:   money received by the Trustee from the remarketing of
               ------    Notes by the Remarketing Agent to persons other than
                         the Issuer, or any Affiliate of any thereof, and

          (3)  Third:    all other money on deposit in the Note Purchase Fund.
               -----

     (e)  Anything in this Indenture to the contrary notwithstanding, the
Trustee shall not purchase any Notes under Section 3.6 with proceeds received
from remarketing of Notes to the Issuer or any Affiliate thereof.

     (f)  Anything herein to the contrary notwithstanding, if proceeds from the
remarketing of Notes by the Remarketing Agent are actually on deposit in the
Note Purchase Fund (and not anticipated to be so on deposit) at or prior to the
time of submission by the Trustee of a draft under the Letter of Credit pursuant
to Section 7.1(c), 7.2(c), the Trustee may reduce the amount of such draft by
the amount of such proceeds.

     SECTION 7.3    MONEY FOR NOTE PAYMENTS TO BE HELD IN TRUST; REPAYMENT OF
                    ---------------------------------------------------------
UNCLAIMED MONEY
---------------

     (a)  If money is on deposit in the Note Fund on any Note Payment Date
sufficient to pay Debt Service on the Notes due and payable on such Note Payment
Date, but the Holder of any Note that matures on such Date or that is subject to
redemption on such Date fails to surrender such Note to the Trustee for payment
of Debt Service due and payable on such Date, the Trustee shall segregate and
hold in trust for the benefit of the person entitled thereto money sufficient to
pay the Debt Service due and payable on such Note on such Date.  Money so
segregated and held in trust shall not be a part of the Trust Estate and shall
not be invested, but shall constitute a separate trust fund for the benefit of
the persons entitled to such Debt Service.

     (b)  If money is on deposit in the Note Purchase Fund on any Tender Date
sufficient to pay the purchase price on the Notes to be paid on such Tender
Date, but the Holder of any Note fails to deliver such Note to the Trustee or
Tender Agent for payment of such purchase price on such Tender Date, the Trustee
shall segregate and hold in trust for the benefit of the person entitled thereto
money sufficient to pay such purchase price due and payable on such
Unsurrendered Note on such Tender Date.  Money so segregated and held in trust
shall not be a part of the Trust Estate and shall not be invested, but shall
constitute a separate trust fund for the benefit of the persons entitled to such
purchase price.

     (c)  Any money held in trust by the Trustee for the payment of Debt Service
on or the purchase price of any Note pursuant to subsections (a) and (b) of this
Section and remaining unclaimed for 3 years after such Debt Service has become
due and payable shall be paid to the Issuer upon request of an Authorized Issuer
Representative; and the Holder of such Note shall thereafter, as an unsecured
general creditor, look only to the Issuer for payment thereof, and all

                                       45
<PAGE>
 
liability of the Trustee with respect to such trust money, and all liability of
the Issuer with respect thereto, shall thereupon cease; provided, however, that
the Trustee, before being required to make any such payment to the Issuer, at
the expense of the Issuer, may (but shall not be required to) cause to be
published once, in a newspaper of general circulation in the city where the
Designated Office of the Trustee is located, notice that such money remains
unclaimed and that, after a date specified therein, which shall not be less than
30 days from the date of such publication, any unclaimed balance of such money
then remaining will be paid to the Issuer.

     SECTION 7.4    INVESTMENT OF SPECIAL FUNDS
                    ---------------------------

     (a)  Any money held as part of a Special Fund shall be invested or
reinvested in Qualified Investments by the Trustee in accordance with the
written instructions of the Issuer, if no Event of Default exists, to the extent
that such investment is feasible and consistent with the purposes for which such
Fund was created; provided, however, that, except as provided below, money in
the Note Fund and the Note Purchase Fund shall be invested only in Federal
Securities (or a fund thereof) with a maturity not later than the earlier of (i)
30 days after the date of such investment, or (ii) the date such money will be
needed for the payment of Debt Service on, or the purchase price of, Notes.  Any
investment made with money on deposit in a Special Fund shall be held by or
under control of the Trustee and shall be deemed at all times a part of the
Special Fund where such money was on deposit, and the interest and profits
realized from such investment shall be credited to such Fund and any loss
resulting from such investment shall be charged to such Fund.

     (b)  The proceeds of a draw under the Letter of Credit shall not be
invested.

     (c)  Any investment of money in the Special Funds may be made by the
Trustee through its own bond department, investment department or other
commercial banking department providing investment services. Any certificate of
deposit issued by, or other interest-bearing deposit with, the Trustee shall be
deemed an investment rather than a deposit requiring security.


                                 ARTICLE VIII

                         REPRESENTATIONS AND COVENANTS
                         -----------------------------

     SECTION 8.1    GENERAL REPRESENTATIONS
                    -----------------------

     The Issuer makes the following representations and warranties as the basis
for the undertakings on its part herein contained:

          (1)  It is duly organized and in good standing as a corporation under
     the laws of the State of Nevada, and is duly authorized to transact
     business as a foreign

                                       46
<PAGE>
 
     corporation and in good standing under the laws of the State of Florida and
     of every other jurisdiction in which such authorization or qualification is
     necessary.

          (2)  It has the power to issue the Notes and enter into this Indenture
     and the Remarketing Agent Agreement and to consummate the transactions
     contemplated by the Financing Documents to which it is a party.

          (3)  By proper corporate action the Issuer has duly authorized the
     issuance of the Notes and the execution and delivery of the Financing
     Documents to which it is a party, and the consummation of the transactions
     contemplated therein.

          (4)  It has obtained all consents, approvals, authorizations and
     orders of governmental authorities that are required to be obtained by it
     as a condition to the issuance of the Notes and the execution and delivery
     of the Financing Documents to which it is a party.

          (5)  The issuance of the Notes and the execution and delivery by it of
     the Financing Documents to which it is a party and the consummation by it
     of the transactions contemplated therein will not (i) conflict with, be in
     violation of, or result in a default under its certificate of articles of
     incorporation, bylaws or other constituent documents or any agreement,
     instrument, order or judgment to which it is a party or is subject or (ii)
     result in or require the creation or imposition of any lien of any nature
     with respect to the Trust Estate, except as contemplated by the Financing
     Documents.

          (6)  The Notes and the Financing Documents to which it is a party
     constitute legal, valid and binding obligations and are enforceable against
     it in accordance with the respective terms thereof, except as enforcement
     thereof may be limited by (i) the exercise of judicial discretion and (ii)
     bankruptcy, insolvency, or other similar laws affecting the enforcement of
     creditors' rights, to the extent constitutionally applicable.

          (7)  The Issuer has not created or permitted the creation of any
     mortgage, pledge, encumbrance, security interest, assignment or other
     charge of any kind with respect to the Trust Estate, except as effected or
     contemplated by the Financing Documents.

          (8)  There is no action, suit, proceeding, inquiry or investigation
     pending before any court or governmental authority, or threatened against
     or affecting it or its properties, that involves (i) the consummation of
     the transactions contemplated by, or the validity or enforceability of, the
     Notes or any Financing Documents, (ii) its organization, (iii) the election
     or qualification of its directors or officers, or (iv) its powers.

          (9)  The Issuer is not an "investment company" or a company
     "controlled" by an "investment company", as such terms are defined in the
     Investment Company Act of 1940, as amended.

                                       47
<PAGE>
 
     SECTION 8.2    PAYMENT OF DEBT SERVICE AND PURCHASE OF TENDERED NOTES
                    ------------------------------------------------------

     (a)  The Issuer shall:

          (1)  On or before 11:00 a.m. (Ft. Lauderdale, Florida time), on each
     Note Payment Date, pay to the Trustee an amount equal to the Debt Service
     on the Notes due on such Note Payment Date; provided, however, that (i) any
     amount already on deposit in the Note Fund on the due date of such payment
     and available for the payment of Debt Service on such Note Payment Date
     shall be credited against the amount of such payment, and (ii) any amount
     drawn by the Trustee pursuant to the Letter of Credit for the payment of
     such Debt Service shall be credited against such payment; and

          (2)  On or before 11:00 a.m. (Ft. Lauderdale, Florida time), on each
     Tender Date, pay to the Trustee an amount equal to the purchase price of
     Notes tendered (or deemed tendered) for purchase on such Tender Date;
     provided, however, that (i) any amount already on deposit in the Note
     Purchase Fund on such Tender Date that is available for the payment of the
     purchase price of such Tendered Notes shall be credited against the amount
     of such payment, and (ii) any amount drawn by the Trustee pursuant to the
     Letter of Credit for the payment of the purchase price of such Tendered
     Notes shall be credited against such payment.

     (b)  The Issuer covenants and agrees that until the Indenture Indebtedness
is paid in full the Issuer shall make such payments in such amounts and at such
times as shall be necessary to enable the Trustee to pay in full in accordance
with the Indenture (i) all Debt Service on the Notes when and as the same
becomes due and payable, whether at stated maturity and due dates, by call for
acceleration, by optional or mandatory redemption, or otherwise, and (ii) the
purchase prices of all Tendered Notes when and as the same become due and
payable.

     (c)  Any overdue payment shall bear interest from the related Note Payment
Date until paid at the Post-Default Rate.

     SECTION 8.3    INDEMNITY OF TRUSTEE
                    --------------------

     (a)  The Issuer agrees to pay, and to indemnify and hold the Trustee
harmless against, any and all liabilities, losses, damages, claims or actions
(including all reasonable attorneys' fees and expenses of the Trustee), of any
nature whatsoever incurred by the Trustee acting in good faith and without gross
negligence or willful misconduct arising from or in connection with its
performance or observance of any covenant or condition on its part to be
observed or performed under the Financing Documents.

     (b)  The Issuer hereby agrees that the Trustee shall not incur any
liability to the Issuer, and shall be indemnified against all liabilities, in
exercising or refraining from asserting, maintaining or exercising any right,
privilege or power of the Trustee under the Financing 

                                       48
<PAGE>
 
Documents if the Trustee is acting in good faith and without gross negligence or
willful misconduct or in reliance upon a written request by the Issuer.

     (c)  If the Trustee shall be obligated to pay any claim, liability or loss,
and if in accordance with all applicable provisions of this Section the Issuer
shall be obligated to indemnify and hold the Trustee harmless against such
claim, liability or loss, then, in such case, the Issuer shall have a primary
obligation to pay such claim, liability or loss on behalf of such indemnifiable
party and may not defer discharge of its indemnity obligation hereunder until
such indemnifiable party shall have first paid such claim, liability or loss and
thereby incurred actual loss.

     (d)  The covenants of indemnity contained in this Section shall survive the
termination of this Indenture with respect to events or occurrences happening
prior to or upon the termination of this Indenture and shall remain in full
force and effect until the commencement of an action with respect to any such
event or occurrence shall be prohibited by law.
 
     SECTION 8.4    OBLIGATIONS OF ISSUER UNCONDITIONAL
                    -----------------------------------

     The obligation of the Issuer to make all payments provided for herein and
to perform and observe the other agreements and covenants on its part herein
contained shall be absolute and unconditional.  The Issuer will not suspend or
discontinue any such payment or fail to perform and observe any of its other
agreements and covenants contained herein or terminate this Indenture for any
cause whatsoever, including, without limiting the generality of the foregoing,
the invalidity or unenforceability of the Notes or any of the Financing
Documents or any provision thereof, failure of consideration or commercial
frustration of purpose, any failure of the Credit Obligor to make a payment
pursuant to the Letter of Credit or to reinstate the appropriate amount thereof,
any change in the tax or other laws or administrative rulings, actions or
regulations of the United States of America or of any state, territory or
possession thereof or of the District of Columbia, or of any political
subdivision, municipality or other governmental unit of any of the foregoing, or
any failure of any party to perform and observe any agreement or covenant,
whether express or implied, duty, liability or obligation arising out of or in
connection with any of the Financing Documents.
 
     SECTION 8.5    GENERAL COVENANTS OF THE ISSUER
                    -------------------------------

     Until the Indenture Indebtedness is paid in full:

     (a)  The Issuer will maintain proper books of record and account, in which
full and correct entries will be made, in accordance with generally accepted
accounting principles (as the same exist on the date of application thereof), of
all its business and affairs.  The Issuer shall furnish to the Trustee with
reasonable promptness, and within 30 days of their completion, annual financial
statements audited by certified public accountants of the Issuer and prepared in
accordance with generally accepted accounting principles (as the same exist on
the date of application thereof).

                                       49
<PAGE>
 
     (b)  The Issuer will duly pay and discharge all taxes, assessments and
other governmental charges and liens lawfully imposed on the Issuer, and the
properties of the Issuer, provided, however, the Issuer will not be required to
pay any taxes, assessments or other governmental charges so long as in good
faith it shall contest the validity thereof by appropriate legal proceedings.

     (c)  Except as permitted by this Section the Issuer will maintain and
preserve its existence as a corporation under the laws of the State of Nevada
and will not voluntarily dissolve without first discharging its obligations
under this Indenture (except as permitted herein) and will comply with all valid
laws, ordinances, regulations and requirements applicable to it or to its
property.

     (d)  The Issuer will not in any manner transfer or convey any material
portion of its property, assets and licenses; without receipt of present and
adequate consideration therefor.

     (e)  The Issuer will do, execute, acknowledge, deliver and record such
further acts, conveyances, agreements, documents, instruments, financing
statements and assurances as the Trustee shall require for accomplishing the
purposes of the Financing Documents.

     (f)  The Issuer will (1) pay all amounts due after the dishonor of a
drawing request by or the insolvency of the Credit Obligor; and (2) not use the
proceeds of the Notes in violation of Regulations G, T, U or X of the Board of
Governors of the Federal Reserve System; and (c) will cause the proceeds from
(i) the sale of the Notes, (ii) the remarketing of the Notes and (iii) from
drawings on the Letter of Credit to be maintained in separate accounts,
segregated from each other and from any other funds provided by the Issuer to
make payments on the Notes or to reimburse the Credit Obligor.

    SECTION 8.6     APPOINTMENT OF SUCCESSOR TRUSTEE
                    --------------------------------

     Whenever necessary to avoid or fill a vacancy in the office of the Trustee,
the Issuer will appoint a successor Trustee in the manner provided in Section
10.9.
 
     SECTION 8.7    FURTHER ASSURANCES
                    ------------------

     The Issuer will at any time or times do, execute, acknowledge, deliver and
record or cause to be done, executed, acknowledged, delivered, and recorded all
such further acts, deeds, conveyances, assignments, pledges, transfers and
assurances in law as the Trustee shall reasonably require for the better
assuring, assigning, transferring, pledging and confirming unto the Trustee, all
and singular, the property and rights herein assigned, transferred and pledged
or intended so to be.

                                       50
<PAGE>
 
                                  ARTICLE IX

                        EVENTS OF DEFAULT AND REMEDIES
                        ------------------------------

     SECTION 9.1    EVENTS OF DEFAULT
                    -----------------

     Any one or more of the following shall constitute an event of default under
this Indenture (whatever the reason for such event and whether it shall be
voluntary or involuntary or be effected by operation of law or pursuant to any
judgment, decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

          (1)  default in the payment of any interest upon any Note when such
     interest becomes due and payable; or

          (2)  default in the payment of the principal of (or premium, if any,
     on) any Note when such principal (or premium, if any) becomes due and
     payable, whether at its stated maturity, by declaration of acceleration or
     call for redemption or otherwise; or

          (3)  failure to pay when due the purchase price of any Note tendered
     for purchase pursuant to the Optional Tender or Mandatory Tender provisions
     hereof; or

          (4)  the occurrence of an event of default, as therein defined, under
     any other Financing Document (other than the Credit Documents) and the
     expiration of the grace period, if any, specified therein; or

          (5)  receipt of notice by the Trustee from the Credit Obligor that the
     Credit Obligor has not reinstated the Credit Amount of the Letter of Credit
     (as defined therein) in accordance with the terms thereof; or

          (6)  receipt by the Trustee of written notice from the Credit Obligor
     that an event of default, as therein defined, has occurred and is
     continuing under the Credit Documents; or

          (7)  the Credit Obligor dishonors a draw under the Letter of Credit;
     or

          (8)  default in the performance, or breach, of any covenant,
     representation or warranty of the Issuer in this Indenture (other than a
     covenant or warranty a default in the performance or breach of which is
     elsewhere in this Section specifically described), and continuance of such
     default or breach for a period of 30 days after there has been given, by
     registered or certified mail, to the Issuer, and the Credit Obligor by the
     Trustee or to the Issuer, the Trustee and the Credit Obligor by the Holders
     of at least 10% in principal amount of the Outstanding Notes, a written
     notice specifying such default or breach and requiring it to be remedied
     and stating that such notice is a "notice of default" hereunder.

                                       51
<PAGE>
 
     SECTION 9.2    ACCELERATION OF MATURITY; RESCISSION AND ANNULMENT; EXERCISE
                    ------------------------------------------------------------
OF REMEDIES
-----------

     (a)  If an Event of Default exists under any of Section 9.1(1) 9.1(2), 
9.1(3), 9.1(4), 9.1(5), 9.1(6) or 9.1(7) and the Letter of Credit is in effect,
the Trustee shall (1) declare the principal of all the Notes and the interest
accrued thereon to be due and payable immediately, by a notice in writing to the
Issuer and the Credit Obligor, and upon any such declaration such principal and
the interest accrued thereon to the date of declaration shall become immediately
due and payable and interest on the Notes shall cease to accrue from and after
the date of declaration and (2) immediately draw under the Letter of Credit to
the full extent permitted by the terms thereof to pay the principal of the Notes
and the interest accrued and to accrue thereon until and including the date of
such declaration.

     (b)  If an Event of Default exists under Section 9.1(8) or if any other
Event of Default exists and the Letter of Credit is no longer in effect or there
has occurred a Credit Obligor Insolvency Date, then, and in every such case, the
Trustee or the Holders of not less than 25% in principal amount of the Notes
Outstanding may (but only with the consent of the Credit Obligor if the Letter
of Credit is in effect and the Credit Obligor has not dishonored a draw thereon
and a Credit Obligor Insolvency Date has not occurred) declare the principal of
all the Notes and the interest accrued thereon to be due and payable
immediately, by a notice in writing to the Issuer (and to the Trustee, if given
by Holders). Upon any such declaration such principal and the interest accrued
thereon to the date of declaration shall become immediately due and payable and
the Trustee shall, if the Letter of Credit is then in effect, immediately draw
under the Letter of Credit to the full extent permitted by the terms thereof to
pay the principal of the Notes and the interest accrued and to accrue thereon
until and including the date of such declaration.

    (c)   At any time after such a declaration of acceleration has been made
pursuant to subsection (b) of this Section, the Holders of a majority in
principal amount of the Notes Outstanding may (but only with the consent of the
Credit Obligor if the Letter of Credit is in effect and an Event of Default has
not occurred under Section 9.1(7) and a Credit Obligor Insolvency Date has not
occurred), by written notice to the Issuer and the Trustee, rescind and annul
such declaration and its consequences if

          (1)  the Issuer has deposited with the Trustee a sum sufficient to pay

               (A)  all overdue installments of interest on all Notes,

               (B)  the principal of (and premium, if any, on) any Notes which
          have become due otherwise than by such declaration of acceleration and
          interest thereon at the rate or rates prescribed therefor in such
          Notes,

                                       52
<PAGE>
 
               (C)  to the extent that payment of such interest is lawful,
          interest upon overdue installments of interest at the rate or rates
          prescribed therefor in the Notes, and

               (D)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel; and

          (2)  all Events of Default, other than the nonpayment of the principal
     of Notes which have become due solely by such declaration of acceleration,
     have been cured or have been waived as provided in Section 9.15.

No such rescission and annulment shall affect any subsequent default or impair
any right consequent thereon.

     (d)  Upon the occurrence of any Event of Default specified in Section 9.1
the Trustee may, only with the consent of the Credit Obligor if the Letter of
Credit is in effect and has been reinstated to the full amount required to be
available thereunder and the Credit Obligor has not dishonored a draft
thereunder and there has not occurred a Credit Obligor Insolvency Date, subject
to the terms of this Indenture, proceed to protect and enforce its rights and
the rights of the Noteholders by any suit, action or proceeding at law or in
equity, including but not limited to an action for mandamus, or for specific
performance of any agreement herein contained, or for enforcing payment and
collection of any revenues due under this Indenture or for making a demand for
payment from the Issuer, or for taking action pursuant to any other document to
which the Trustee is a party by signature, assignment, operation of law, or
otherwise.

     SECTION 9.3    RIGHTS AND REMEDIES OF TRUSTEE IN THE EVENT OF BANKRUPTCY,
                    ----------------------------------------------------------
AND THE OCCURRENCE OF SIMILAR EVENTS REGARDING THE ISSUER.
----------------------------------------------------------

     In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, composition or other judicial
proceeding relative to any person obligated for payment of the Notes, the
Trustee (irrespective of whether there has been a default under this Indenture)
shall be entitled and empowered to intervene in such proceedings on behalf of
the Noteholders, to file and prove a claim or claims for the whole amount owing
and unpaid and to file such other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee (including any claim for
reasonable compensation to the Trustee, its agents, attorneys and counsel, and
for reimbursement of all expenses and liabilities incurred, and all advances
made, by the Trustee except as a result of its gross negligence or bad faith)
and of the Noteholders allowed in any such judicial proceedings, to collect and
receive any moneys or other property payable or deliverable on any such claims,
and to take such other action therein as the Trustee may deem necessary or
appropriate to protect the interests of the Noteholders, and any receiver,
assignee or trustee, liquidator, sequestrator (or other similar official) in any
such judicial proceeding is hereby authorized by each of the Noteholders to make
payments to the Trustee.

                                       53
<PAGE>
 
     SECTION 9.4   SUBROGATION RIGHTS OF CREDIT OBLIGOR
                   ------------------------------------

     If money is collected by the Trustee pursuant to the Letter of Credit, the
Credit Obligor shall be subrogated to the rights possessed under this Indenture
by the Trustee and the Holders; provided, however, that the Credit Obligor shall
be precluded from exercising or enforcing such subrogation rights until the
principal of, premium, if any, and interest on all Notes shall have been paid in
full as provided in Article hereof. For purposes of the subrogation rights of
the Credit Obligor hereunder, (i) any reference herein to the registered owners
or Holders of the Notes shall mean the Credit Obligor, (ii) any principal of,
mandatory redemption premium, optional redemption premium and interest on the
Notes paid with moneys collected pursuant to the Letter of Credit shall be
deemed to be unpaid hereunder, and (iii) the Credit Obligor may exercise any
rights it would have hereunder as the Holder of the Notes.  The subrogation
rights granted to the Credit Obligor in this Indenture are not intended to be
exclusive of any other remedy or remedies available to the Credit Obligor, and
such subrogation rights shall be cumulative and shall be in addition to every
other remedy given hereunder or under the Financing Documents, or any other
instrument or agreement with respect to the reimbursement of moneys paid by the
Credit Obligor pursuant to the Letter of Credit, and every other remedy now or
hereafter existing at law or in equity or by statute.

     SECTION 9.5    APPLICATION OF MONEY COLLECTED
                    ------------------------------

     (a)  The Trustee shall apply the following funds solely for the purposes
for which they were collected and held under this Indenture and not otherwise:
(1) funds collected from a draw under the Letter of Credit, (2) money held in
trust under Section 7.3 for the benefit of Unsurrendered Notes, and (3) funds
and investments held in trust under Section 13.2 for the Notes to be paid
therefrom.

     (b)  Any money collected by the Trustee pursuant to this Article and any
other sums then held by the Trustee as part of the Trust Estate (other than the
funds referred to in subsection (a) above) shall be applied in the following
order, at the date or dates fixed by the Trustee and, in case of the
distribution of such money on account of principal (or premium, if any) or
interest, upon presentation of the Notes and the notation thereon of the payment
if only partially paid and upon surrender thereof if fully paid:

          (1)  First:  To the payment of all undeducted amounts due the Trustee
               -----                                                           
     under Section 10.7;

          (2)  Second:  To the payment of the whole amount then due and unpaid
               ------                                                         
     upon the Outstanding Notes for principal (and premium, if any) and
     interest, in respect of which or for the benefit of which such money has
     been collected, with interest (to the extent that such interest has been
     collected by the Trustee or a sum sufficient therefor has been so collected
     and payment thereof is legally enforceable at the respective rate or rates
     prescribed therefor in the Notes) on overdue principal (and premium, if
     any) and (to the extent legally enforceable) on overdue installments of
     interest; and in case such proceeds

                                       54
<PAGE>
 
     shall be insufficient to pay in full the whole amount so due and unpaid
     upon such Notes, then to the payment of such principal (and premium, if
     any) and interest, without any preference or priority, ratably according to
     the aggregate amount so due; provided, however, that payments with respect
     to Pledged Notes shall be made only after all other Notes have been Fully
     Paid;

          (3)  Third:  To the payment of all amounts then due to the Credit
               -----                                                       
     Obligor pursuant to the Credit Documents; and

          (4)  Fourth: To the payment of the remainder, if any, to the Issuer or
               ------ 
     to whosoever may be lawfully entitled to receive the same or as a court of
     competent jurisdiction may direct.

     SECTION 9.6    TRUSTEE MAY ENFORCE CLAIMS WITHOUT POSSESSION OF NOTES
                    ------------------------------------------------------

     All rights of action and claims under this Indenture or the Notes may be
prosecuted and enforced by the Trustee without the possession of any of the
Notes or the production thereof in any proceeding relating thereto, and any such
proceeding instituted by the Trustee shall be brought in its own name as trustee
of an express trust.  Any recovery of judgment shall, after provision for the
payment of the reasonable compensation, expenses, disbursements and advances of
the Trustee, its agents and counsel, be for the ratable benefit of the Holders
of the Notes in respect of which such judgment has been recovered.

     SECTION 9.7    LIMITATION ON SUITS BY HOLDERS
                    ------------------------------

     No Holder of any Note shall have any right to institute any proceeding,
judicial or otherwise, under or with respect to this Indenture, or for the
appointment of a receiver or trustee or for any other remedy hereunder, unless

          (1)  such Holder has previously given written notice to the Trustee of
     a continuing Event of Default;

          (2)  the Holders of not less than 25% in principal amount of the
     Outstanding Notes shall have made written request to the Trustee to
     institute proceedings in respect of such Event of Default in its own name
     as Trustee hereunder;

          (3)  such Holder or Holders shall have offered to the Trustee
     reasonable indemnity against the costs, expenses and liabilities to be
     incurred in compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity shall have failed to institute any such proceeding;

                                       55
<PAGE>
 
          (5)  no direction inconsistent with such written request shall have
     been given to the Trustee during such 60-day period by the Holders of a
     majority in principal amount of the Outstanding Notes; and

          (6)  if the Letter of Credit is in effect and an Event of Default does
     not exist under Section 9.1(5), 9.1(6), or 9.1(7), the Credit Obligor shall
     have given its written consent to such direction or request;

it being understood and intended that no one or more Holders of Notes shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the lien of this Indenture or
the rights of any other Holders of Notes, or to obtain or to seek to obtain
priority or preference over any other Holders or to enforce any right under this
Indenture, except in the manner herein provided and for the equal and ratable
benefit of all Outstanding Notes.

     SECTION 9.8    UNCONDITIONAL RIGHT OF NOTEHOLDERS TO RECEIVE PRINCIPAL,
                    --------------------------------------------------------
PREMIUM AND INTEREST
--------------------

     Notwithstanding any other provision in this Indenture other than those set
forth in Article , the Holder of any Note shall have the right, which is
absolute and unconditional, to receive payment of the principal of (and premium,
if any) and interest on such Note on the respective stated maturities expressed
in such Note (or, in the case of redemption, on the redemption date) and to
institute suit for the enforcement of any such payment, and such rights shall
not be impaired without the consent of such Holder.

     SECTION 9.9    RESTORATION OF POSITIONS
                    ------------------------

     If the Trustee or any Noteholder shall have instituted any proceeding to
enforce any right or remedy under this Indenture and such proceeding shall have
been discontinued or abandoned for any reason or shall have been determined
adversely to the Trustee or to such Noteholder, then and in every such case the
Issuer, the Trustee and the Noteholders shall, subject to any determination in
such proceeding, be restored to their former positions hereunder, and thereafter
all rights and remedies of the Trustee and the Noteholders shall continue as
though no such proceeding had been instituted.

     SECTION 9.10   RIGHTS AND REMEDIES CUMULATIVE
                    ------------------------------

     No right or remedy herein conferred upon or reserved to the Trustee or to
the Noteholders is intended to be exclusive of any other right or remedy, and
every such right and remedy shall, to the extent permitted by law, be cumulative
and in addition to every other right and remedy given hereunder or now or
hereafter existing at law or in equity or otherwise.  The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

                                       56
<PAGE>
 
     SECTION 9.11   DELAY OR OMISSION NOT WAIVER
                    ----------------------------

     No delay or omission of the Trustee or of any Holder of any Note to
exercise any right or remedy accruing upon an Event of Default shall impair any
such right or remedy or constitute a waiver of any such Event of Default or an
acquiescence therein.  Every right and remedy given by this Article or by law to
the Trustee or to the Noteholders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Noteholders, as the
case may be.

     SECTION 9.12   CONTROL BY CREDIT OBLIGOR AND NOTEHOLDERS
                    -----------------------------------------

     The Holders of a majority in principal amount of the Outstanding Notes (but
only with the consent of the Credit Obligor, if the Letter of Credit is in
effect and the Credit Obligor has not dishonored any draws thereunder and there
has not occurred a Credit Obligor Insolvency Date) shall have the right, during
the continuance of an Event of Default,

          (1)  to require the Trustee to proceed to enforce this Indenture,
     either by judicial proceedings for the enforcement of the payment of the
     Notes or otherwise, and

          (2)  to direct the time, method and place of conducting any proceeding
     for any available to the Trustee, or exercising any trust or power
     conferred upon the hereunder, provided that

               (A)  the provisions of Section 9.2 requiring a declaration of
          acceleration and a draw under the Letter of Credit may not be modified
          or waived without the consent of all Noteholders,

               (B)  such direction shall not be in conflict with any rule of law
          or this Indenture,

               (C)  the Trustee may take any other action deemed proper by the
          Trustee which is not inconsistent with such direction, and

               (D)  if such direction is given by the Holders of a majority in
          principal amount of Notes Outstanding, the Trustee shall have not
          determined that the action so directed would be unjustly prejudicial
          to the Holders not taking part in such direction.

     SECTION 9.13   WAIVER OF PAST DEFAULTS
                    -----------------------

     (a)  The Holders of not less than a majority in principal amount of the
Outstanding Notes may (but only with the consent of the Credit Obligor if the
Letter of Credit is in effect and the Credit Obligor has not dishonored any
draws thereunder and there has not occurred a Credit Obligor Insolvency Date and
subject to subsection (b) below), by Act of such Noteholders

                                       57
<PAGE>
 
delivered to the Trustee, the Issuer and the Issuer, on behalf of the Holders of
all the Notes, waive any past default hereunder and its consequences, except a
default

          (1)  in the payment of the principal of (or premium, if any) or
     interest on any Note,

          (2)  in the payment of any amounts due by the Issuer under Section 8.2
     (a) hereof, or

          (3)  in respect of a covenant or provision hereof which under Article
     XIV cannot be modified or amended without the consent of the Holder of each
     Outstanding Note affected.

     (b)  Anything herein to the contrary notwithstanding, no default may be
waived unless the Letter of Credit shall have been reinstated to the full amount
then required to be available thereunder and the Credit Obligor shall have
rescinded any notice of default under the Credit Documents or any notice of
nonreinstatement of the Credit Amount of the Letter of Credit.

     (c)  Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

     SECTION 9.14   WAIVER OF APPRAISEMENT AND OTHER LAWS
                    -------------------------------------

     (a)  To the full extent that it may lawfully so agree, the Issuer will not
at any time insist upon, plead, claim or take the benefit or advantage of, any
appraisement, valuation, stay, extension or redemption law now or hereafter in
force, in order to prevent or hinder the enforcement of this Indenture; and the
Issuer, for itself and all who may claim under it, so far as it or they now or
hereafter may lawfully do so, hereby waives the benefit of all such laws.  The
Issuer, for itself and all who may claim under it, waives, to the extent that it
may lawfully do so, all right to have the property in the Trust Estate
marshalled upon any enforcement hereof.

     (b)  If any law in this Section referred to and now in force, of which the
Issuer or its successor or successors might take advantage despite this Section,
shall hereafter be repealed or cease to be in force, such law shall not
thereafter be deemed to constitute any part of the contract herein contained or
to preclude the application of this Section.

     SECTION 9.15   SUITS TO PROTECT THE TRUST ESTATE
                    ---------------------------------

     The Trustee shall have power to institute and to maintain such proceedings
as it may deem expedient to prevent any impairment of the Trust Estate by any
acts which may be unlawful or in violation of this Indenture and to protect its
interests and the interests of the Noteholders in the Trust Estate and in the
rents, issues, profits, revenues and other income

                                       58
<PAGE>
 
arising therefrom, including power to institute and maintain proceedings to
restrain the enforcement of or compliance with any governmental enactment, rule
or order that may be unconstitutional or otherwise invalid, if the enforcement
of or compliance with such enactment, rule or order would impair the security
hereunder or be prejudicial to the interests of the Noteholders or the Trustee.

     SECTION 9.16   REMEDIES SUBJECT TO APPLICABLE LAW
                    ----------------------------------

     All rights, remedies and powers provided by this Article may be exercised
only to the extent that the exercise thereof does not violate any applicable
provision of law in the premises, and all the provisions of this Article are
intended to be subject to all applicable mandatory provisions of law which may
be controlling in the premises and to be limited to the extent necessary so that
they will not render this Indenture invalid, unenforceable or not entitled to be
recorded, registered or filed under the provisions of any applicable law.


                                   ARTICLE X

                                  THE TRUSTEE
                                  -----------

     SECTION 10.1   CERTAIN DUTIES AND RESPONSIBILITIES
                    -----------------------------------

     (a)  Except during the continuance of an Event of Default,

          (1)  the Trustee undertakes to perform such duties and only such
     duties as are specifically set forth in this Indenture, and no implied
     covenants or obligations shall be read into this Indenture against the
     Trustee; and

          (2)  in the absence of bad faith on its part, the Trustee may
     conclusively rely, as to the truth of the statements and the correctness of
     the opinions expressed therein, upon certificates or opinions furnished to
     the Trustee and conforming to the requirements of this Indenture; but in
     the case of any such certificates or opinions which by any provision hereof
     are specifically required to be furnished to the Trustee, the Trustee shall
     be under a duty to examine the same to determine whether or not they
     conform to the requirements of this Indenture.

     (b)  If an Event of Default exists, the Trustee shall exercise such of the
rights and powers vested in it by this Indenture, and use the same degree of
care and skill in their exercise, as a prudent man would exercise or use under
the circumstances in the conduct of his own affairs.

                                       59
<PAGE>
 
     (c)  No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own grossly negligent action, its own grossly
negligent failure to act, or its own willful misconduct, except that

          (1)  this subsection shall not be construed to limit the effect of
     subsection (a) of this Section;

          (2)  the Trustee shall not be liable for any error of judgment made in
     good faith, unless it shall be proved that the Trustee was grossly
     negligent in ascertaining the pertinent facts;

          (3)  the Trustee shall not be liable with respect to any action taken
     or omitted to be taken by it in good faith in accordance with the direction
     of the Holders of a majority in principal amount of the Outstanding Notes
     relating to the time, method and place of conducting any proceeding for any
     remedy available to the Trustee, or exercising any trust or power conferred
     upon the Trustee, under this Indenture; and

          (4)  no provision of this Indenture shall require the Trustee to
     expend or risk its own funds or otherwise incur any financial liability in
     the performance of any of its duties hereunder, or in the exercise of any
     of its rights or powers, if it shall have reasonable grounds for believing
     that repayment of such funds or adequate indemnity against such risk or
     liability is not reasonably assured to it.

     (d)  Whether or not therein expressly so provided, every provision of this
Indenture relating to the conduct or affecting the liability of or affording
protection to the Trustee shall be subject to the provisions of this Section.

     SECTION 10.2   NOTICE OF DEFAULTS
                    ------------------

     Within 90 days after the occurrence of any default hereunder, the Trustee
shall transmit by mail to all Noteholders as their names and addresses appear in
the Note Register, notice of such default hereunder known to the Trustee, unless
such default shall have been cured or waived; provided, however, that, except in
the case of a default in the payment of Debt Service on any Note, the Trustee
shall be protected in withholding such notice if and so long as the Trustee in
good faith determines that the withholding of such notice is in the interests of
the Noteholders; and provided, further, that in the case of any default of the
character specified in Section 9.1(8) no such notice to Noteholders shall be
given until at least 30 days after the occurrence thereof. For the purpose of
this Section, the term "default" means any event which is, or after notice or
lapse of time or both would become, an Event of Default.

     SECTION 10.3   CERTAIN RIGHTS OF TRUSTEE
                    -------------------------

     Except as otherwise provided in Section 10.1:

                                       60
<PAGE>
 
          (1)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, coupon or other paper or document believed by it to be
     genuine and to have been signed or presented by the proper parry or
     parties;

          (2)  any request or direction of the Issuer mentioned herein shall be
     sufficiently evidenced by a certificate or order executed by an Authorized
     Issuer Representative;

          (3)  whenever in the administration of this Indenture the Trustee
     shall deem it desirable that a matter be proved or established prior to
     taking, suffering or omitting any action hereunder, the Trustee (unless
     other evidence be herein specifically prescribed) may, in the absence of
     bad faith on its part, rely upon a certificate executed by an Authorized
     Issuer Representative;

          (4)  the Trustee may consult with counsel and the written advice of
     Independent Counsel or any Opinion of Independent Counsel shall be full and
     complete authorization and protection in respect of any action taken,
     suffered or omitted by the Trustee hereunder in good faith and in reliance
     thereon;

          (5)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Noteholders pursuant to this Indenture, unless such
     Noteholders shall have offered to the Trustee reasonable security or
     indemnity against the costs, expenses and liabilities which might be
     incurred by it in compliance with such request or direction, provided, that
     the Trustee cannot require such security or indemnity as a condition to the
     performance by the Trustee of its obligations under Sections 7.1, 7.2 and
     9.2;

          (6)  the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, coupon or other paper or document but the Trustee, in its
     discretion, may make such further inquiry or investigation into such facts
     or matters as it may see fit, and, if the Trustee shall determine to make
     such further inquiry or investigation, it shall be entitled to examine the
     books and records of the Issuer, personally or by agent or attorney; and

          (7)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder.

                                       61
<PAGE>
 
     SECTION 10.4   NOT RESPONSIBLE FOR RECITALS
                    ----------------------------

     The recitals contained herein and in the Notes, except the certificate of
authentication and registration on the Notes, shall be taken as the statements
of the Issuer, and the Trustee assumes no responsibility for their correctness.
The Trustee makes no representations as to the value or condition of the Trust
Estate or any part thereof, or as to the title of the Issuer thereto or as to
the security afforded thereby or hereby, or as to the validity or sufficiency of
this Indenture or of the Notes.

     SECTION 10.5   MAY HOLD NOTES
                    --------------

     The Trustee in its individual or any other capacity, may become the owner
or pledgee of Notes and may otherwise deal with the Issuer with the same rights
it would have if it were not Trustee.

     SECTION 10.6   MONEY HELD IN TRUST
                    -------------------

     Money held by the Trustee in trust hereunder need not be segregated from
other funds except to the extent required by this Indenture or by law.  The
Trustee shall be under no liability for interest on any money received by it
hereunder except as otherwise provided in Section 7.4.

     SECTION 10.7   COMPENSATION AND REIMBURSEMENT
                    ------------------------------

     (a)  The Issuer agrees to pay or cause to be paid:

          (1)  to the Trustee from time to time reasonable compensation for all
     services rendered by it hereunder (which compensation shall not be limited
     by any provision of law in regard to the compensation of a trustee of an
     express trust); and

          (2)  except as otherwise expressly provided herein, upon request,
     reimbursement for all reasonable expenses, disbursements and advances
     incurred or made by the Trustee in accordance with any provision of this
     Indenture (including the reasonable compensation and the expenses and
     disbursements of its agents and Independent counsel), except any such
     expense, disbursement or advance as may be determined by a court of
     competent jurisdiction to be attributable to the Trustee's gross
     negligence, or bad faith, or wilful misconduct.

     (b)  As security for the performance of the obligations of the Issuer under
this Section the Trustee shall be secured under this Indenture by a lien prior
to the Notes, and for the payment of such compensation, expenses, reimbursements
and indemnity the Trustee shall have the right to use and apply any money held
by it as a part of the Trust Estate; provided, however, that funds held by the
Trustee under Section 7.3 and Section 13.2 shall be used solely for the purposes
thereof and all funds received by the Trustee from the Letter of Credit shall be
used solely for the purpose of paying Debt Service on, or the purchase price of,
Notes as herein

                                       62
<PAGE>
 
provided, and such funds held under Section 7.3 and Section 13.2 and such funds
received from the Letter of Credit shall never be subject to any lien imposed by
this Section in favor of the Trustee.

     SECTION 10.8   ELIGIBILITY OF TRUSTEE; APPOINTMENT OF CO-TRUSTEE
                    -------------------------------------------------

     (a)  Except as provided in subsection (b), there shall at all times be a
Trustee hereunder which shall be a commercial bank or trust company organized
and doing business under the laws of the United States or of any State,
authorized under such laws to exercise corporate trust powers, having a combined
capital and surplus of at least $50,000,000, subject to supervision or
examination by Federal or State authority.

     (b)  It is the purpose of this Indenture that there shall be no violation
of the law of any jurisdiction denying or restricting the right of banking
corporations or associations to transact business as trustee in such
jurisdiction. It is recognized that in case of litigation under Financing
Documents, and in particular in case of the enforcement thereof on any default
or Event of Default, or in the case the Trustee deems that by reason of any
present or future law of any jurisdiction it may not exercise any of the powers,
rights, or remedies herein granted to the Trustee or hold title to the
properties, in trust, as herein granted, or take any action which may be
desirable or necessary in connection therewith, it may be necessary that the
Trustee appoint an additional individual or institution as a separate or co-
trustee pursuant to this section.

     (c)  In the event that the Trustee appoints an additional individual or
institution as a separate or co-trustee, each and every remedy, power, right,
claim, demand, cause of action, immunity, estate, title, interest and lien
expressed or intended by this Indenture to be exercised by or vested in or
conveyed to the Trustee with respect thereto shall be exercisable by and vest in
such separate or co-trustee but only to the extent necessary to enable such
separate or co trustee to exercise such powers, rights and remedies, and every
covenant and obligation necessary to the exercise thereof by such separate or
co-trustee shall run to and be enforceable by either of them.  The Trustee shall
be jointly liable for the actions taken by such separate or co-trustee, if such
actions were taken at the direction of the Trustee.

     (d)  Should any instrument in writing from the Issuer be required by the
separate or co-trustee so appointed by the Trustee for more fully and certainly
vesting in and confining to him or it such properties, rights, powers, trusts,
duties and obligations, any and all such instruments in writing shall, on
request, be executed, acknowledged and delivered by the Issuer.  In case any
separate or co-trustee or a successor to either shall die, become incapable of
acting, resign or be removed, all the estates, properties, rights, powers,
trusts, duties and obligations of such separate or co-trustee, so far as
permitted by law, shall vest in and be exercised by the Trustee until the
appointment of a new trustee or successor to such separate or co-trustee.

                                       63
<PAGE>
 
     SECTION 10.9   RESIGNATION AND REMOVAL; APPOINTMENT OF SUCCESSOR
                    -------------------------------------------------

     (a)  No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee under Section 10.10.

     (b)  The Trustee may resign at any time by giving written notice thereof to
the Issuer.  If an instrument of acceptance by a successor Trustee shall not
have been delivered to the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee.

     (c)  The Trustee may (but only with the consent of the Credit Obligor if
the Letter of Credit is in effect and the Credit Obligor has not dishonored any
draws thereunder and there has not otherwise been instituted insolvency
proceedings with respect to the Credit Obligor) be removed at any time by Act of
the Holders of a majority in principal amount of the Outstanding Notes delivered
to the Trustee and the Issuer.

     (d)  If at any time:

          (1)  the Trustee shall cease to be eligible under Section 10.8 and
     shall fail to resign after written request therefor by the Issuer or by any
     Noteholder who has been a Holder of a Note for at least 6 months, or

          (2)  the Trustee shall become incapable of acting or shall be adjudged
     a bankrupt or insolvent or a receiver of the Trustee or of its property
     shall be appointed or any public officer shall take charge or control of
     the Trustee or of its property or affairs for the purpose of
     rehabilitation, conservation or liquidation,

then, in any such case, (i) the Issuer by a resolution of its Board of Directors
may remove the Trustee, or (ii) any Noteholder who has been a Holder of a Note
for at least 6 months may, on behalf of such Noteholder and all others similarly
situated, petition any court of competent jurisdiction for the removal of the
Trustee and the appointment of a successor Trustee.

     (e)  If the Trustee shall resign, be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any cause, the Issuer,
by a resolution of its Board of Directors, shall (with the consent of the Credit
Obligor if the Letter of Credit is in effect and the Credit Obligor has not
dishonored any draws thereunder and there has not occurred a Credit Obligor
Insolvency Date) promptly appoint a successor Trustee.  In case all or
substantially all of the Trust Estate shall be in the possession of a receiver
or trustee lawfully appointed, such receiver or trustee, by written instrument,
may (with the consent of the Credit Obligor if the Letter of Credit is in effect
and the Credit Obligor has not dishonored any draws thereunder and there has not
otherwise been instituted insolvency proceedings with respect to the Credit
Obligor) similarly appoint a successor to fill such vacancy until a new Trustee
shall be so appointed by the Noteholders.  If, within 1 year after such
resignation, removal or

                                       64
<PAGE>
 
incapability or the occurrence of such vacancy, a successor Trustee shall (with
the consent of the Credit Obligor under the conditions herein prescribed) be
appointed by Act of the Holders of a majority in principal amount of the
Outstanding Notes delivered to the Issuer and the retiring Trustee, the
successor Trustee so appointed shall, forthwith upon its acceptance of such
appointment, become the successor Trustee and supersede the successor Trustee
appointed by the Issuer or by such receiver or trustee.  If no successor Trustee
shall have been so appointed by the Issuer or the Noteholders and accepted
appointment in the manner hereinafter provided, any Noteholder who has been a
Holder of a Note for at least 6 months may, on behalf of such Noteholder and all
others similarly situated, petition any court of competent jurisdiction for the
appointment of a successor Trustee.

     (f)  The Issuer shall give notice of each resignation and each removal of
the Trustee and each appointment of a successor Trustee by mailing written
notice of such event by first-class mail, postage prepaid, to the Holders of
Notes as their names and addresses appear in the Note Register.  Each notice
shall include the name of the successor Trustee and the address of its Principal
Office.

     (g)  Any successor Trustee shall be acceptable to any Rating Agency which
shall then maintain a rating with respect to the Notes.

     SECTION 10.10  ACCEPTANCE OF APPOINTMENT BY SUCCESSOR
                    --------------------------------------

     (a)  Every successor Trustee appointed hereunder shall execute, acknowledge
and deliver to the Issuer and to the retiring Trustee an instrument accepting
such appointment, and thereupon the resignation or removal of the retiring
Trustee shall become effective and such successor Trustee, without any further
act, deed or conveyance, shall become vested with all the estates, properties,
rights, powers, trusts and duties of the retiring Trustee; but, on request of
the Issuer or the successor Trustee, such retiring Trustee shall, upon payment
of its charges, execute and deliver an instrument conveying and transferring to
such successor Trustee upon the trusts herein expressed all the estates,
properties, rights, powers and trusts of the retiring Trustee, and shall duly
assign, transfer and deliver to such successor Trustee all property and money
held by such retiring Trustee hereunder, subject nevertheless to its lien, if
any, provided for in Section 10.7.  Upon request of any such successor Trustee,
the Issuer shall execute any and all instruments for more fully and certainly
vesting in and confirming to such successor Trustee all such estates,
properties, rights, powers and trusts.

     (b)  No successor Trustee shall accept its appointment unless at the time
of such acceptance such successor Trustee shall be qualified and eligible under
this Article, to the extent operative.

     SECTION 10.11  MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION TO BUSINESS 
                    -----------------------------------------------------------

     Any corporation or association into which the Trustee may be merged or
converted or with which it may be consolidated, or any corporation or
association resulting from any merger,

                                       65
<PAGE>
 
conversion or consolidation to which the Trustee shall be a party, or any
corporation or association succeeding to all or substantially all of the
corporate trust business of the Trustee, shall be the successor of the Trustee
hereunder, provided such corporation or association shall be otherwise qualified
and eligible under this Article, to the extent operative, without the execution
or filing of any paper or any further act on the part of any of the parties
hereto.  In case any Notes shall have been authenticated, but not delivered, by
the Trustee then in office, any successor by merger, conversion or consolidation
to such authenticating Trustee may adopt such authentication and deliver the
Notes so authenticated with the same effect as if such successor Trustee had
itself authenticated such Notes.


                                  ARTICLE XI

          SUPPLEMENTAL INDENTURES AND AMENDMENTS OF LETTER OF CREDIT
          ----------------------------------------------------------

     SECTION 11.1   SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF NOTEHOLDERS
                    ------------------------------------------------------

     Without the consent of the Holders of any Notes, the Issuer, when
authorized by a resolution of its Board of Directors, and the Trustee may,
subject to the provisions of Sections 11.6 and 11.7, from time to time enter
into one or more indentures supplemental hereto or in amendment hereof, in form
satisfactory to the Trustee, for any of the following purposes:

          (1)  to correct or amplify the description of any property at any time
     subject to the lien of this Indenture, or better to assure, convey and
     confirm unto the Trustee any property subject or required to be subjected
     to the lien of this Indenture, or to subject to the lien of this Indenture
     additional property; or

          (2)  to add to the conditions, limitations and restrictions on the
     authorized amount, terms or purposes of issue of the Notes; or

          (3)  to evidence the succession of another corporation to the Issuer
     and the assumption by any such successor of the covenants of the Issuer
     herein and in the Notes contained; or

          (4)  to add to the covenants of the Issuer for the benefit of the
     Holders of Notes and to make the occurrence, or the occurrence and
     continuance, of a default in any of such additional covenants an Event of
     Default permitting the enforcement of all or any of the several remedies
     provided in this Indenture; provided, however, that with respect to any
     such covenant, such supplemental indenture may provide for a particular
     period of grace after default (which period may be shorter or longer than
     that allowed in the case of other defaults) or may provide for an immediate
     enforcement upon such default or may limit the remedies available to the
     Trustee upon such default;

          (5)  to surrender any right or power herein conferred upon the Issuer;
     or

                                       66
<PAGE>
 
          (6)  to cure any ambiguity, to correct or supplement any provision
     herein which may be inconsistent with any other provision herein or to make
     any other provisions, with respect to matters or questions arising under
     this Indenture, which shall not be inconsistent with the provisions of this
     Indenture, provided such action shall not adversely affect the interests of
     the Holders of the Notes; or

          (7)  to permit fully registered Notes to be exchanged for coupon Notes
     (which may be registrable as to principal only); or

          (8)  to make further provisions with respect to the administration and
     operation of the Book-Entry System and the transfer, payment, selection for
     redemption and redemption of Notes in accordance therewith; or

          (9)  to secure or maintain ratings from a Rating Agency, provided that
     (i) the changes necessary to obtain or secure such ratings do not adversely
     affect the interests of the Holders of the Notes and (ii) the Trustee
     receives an Opinion of Note Counsel to the effect that such changes are
     permitted by applicable law; or

          (10) to modify, amend or supplement this Indenture in such manner as
     to permit the qualification hereof under the Trust Indenture Act of 1939 or
     any similar federal statute hereafter in effect or to permit the
     qualification of the Notes for sale under the securities laws of any of the
     states of the United States, and, if they so determine, to add to this
     Indenture such other terms, conditions and provisions as may be permitted
     by said Trust Indenture Act of 1939 or similar federal statute.

     SECTION 11.2   SUPPLEMENTAL INDENTURES WITH CONSENT OF NOTEHOLDERS
                    ---------------------------------------------------

     With the consent of the Holders of not less than a majority in principal
amount of the Notes then Outstanding affected by such supplemental or amendatory
indenture, by Act of such Holders delivered to the Issuer and the Trustee, the
Issuer, when authorized by a resolution of its Board of Directors, and the
Trustee may, subject to the provisions of Sections 11.6 and 11.7, enter into an
indenture or indentures supplemental hereto or in amendment hereof for the
purpose of adding any provisions to or changing in any manner or eliminating any
of the provisions of this Indenture or of modifying in any manner the rights of
the Holders of the Notes under this Indenture; provided, however, that no such
supplemental indenture or any amendment shall, without the consent of the Holder
of each Outstanding Note affected thereby,

          (1)  change the stated maturity of the principal of, or any
     installment of interest on, any Note, or reduce the principal amount
     thereof or the interest thereon or any premium payable upon the redemption
     thereof, or change any place of payment where, or the coin or currency in
     which, any Note, or the interest thereon is payable, or impair the right to
     institute suit for the enforcement of any such payment on or after the
     stated maturity thereof (or, in the case of redemption, on or after the
     redemption date); or

                                       67
<PAGE>
 
          (2)  reduce the percentage in principal amount of the Outstanding
     Notes the consent of whose Holders is required for any such supplemental
     indenture or the consent of whose Holders is required for any waiver
     provided for in this Indenture of compliance with certain provisions of
     this Indenture or certain defaults hereunder and their consequences; or

          (3)  modify or alter the provisions of the proviso to the definition
     of the term "Outstanding"; or

          (4)  modify any of the provisions of this Section or Section 9.13,
     except to increase any percentage provided thereby or to provide that
     certain other provisions of this Indenture cannot be modified or waived
     without the consent of the Holder of each Note affected thereby; or

          (5)  permit the creation of any lien ranking prior to or on a parity
     with the lien of this Indenture with respect to the Trust Estate or any
     part thereof or terminate the lien of this Indenture on any property at any
     time subject hereto or deprive the Holder of any Note of the security
     afforded by the lien of this Indenture; or

          (6)  release any rights under the Letter of Credit; provided, however,
     no consent of the Noteholders will be required for any extension of the
     term of the Letter of Credit by the Credit Obligor, or for the acceptance
     by the Trustee of a Substitute Letter of Credit and the concomitant release
     of the then Existing Letter of Credit as provided in Section 3.10, or any
     amendment to the Letter of Credit which is provided for, and contemplated
     by, this Indenture.

     SECTION 11.3   DISCRETION OF TRUSTEE; ACTS OF NOTEHOLDERS
                    ------------------------------------------

     (a)  The Trustee may in its discretion determine whether or not any Notes
would be affected by any supplemental indenture and any such determination shall
be conclusive upon the Holders of all Notes, whether theretofore or thereafter
authenticated and delivered hereunder.  The Trustee shall not be liable for any
such determination made in good faith.

     (b)  It shall be necessary for any Act of Noteholders under this Section to
approve the particular form of any proposed supplemental indenture but it shall
be sufficient if such Act shall approve the substance thereof.

     SECTION 11.4   CONSENT OF CREDIT OBLIGOR
                    -------------------------

     Subject to Section 1.12, no amendment or change to this Indenture shall be
made without the prior written consent of the Credit Obligor.

                                       68
<PAGE>
 
     SECTION 11.5   EXECUTION OF SUPPLEMENTAL INDENTURES
                    ------------------------------------
 
     In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modification thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and, subject to Section 10.1, shall be fully protected in relying upon, an
Opinion of Independent Counsel stating that the execution of such supplemental
indenture or amendment is authorized or permitted by this Indenture.  The
Trustee may, but shall not be obligated to, enter into any such supplemental
indenture or consent to any such amendment which affects the Trustee's own
rights, duties or immunities under this Indenture, or otherwise.

     SECTION 11.6   EFFECT OF SUPPLEMENTAL INDENTURES
                    ---------------------------------

     Upon the execution of any supplemental indenture under this Article, this
Indenture shall be modified in accordance therewith and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Notes theretofore or thereafter authenticated and delivered hereunder shall
be bound thereby.

     SECTION 11.7   REFERENCE IN NOTES TO SUPPLEMENTAL INDENTURES
                    ---------------------------------------------

     Notes authenticated and delivered after the execution of any supplemental
indenture pursuant to this Article may, and if required by the Trustee shall,
bear a notation in form approved by the Trustee as to any matter provided for in
such supplemental indenture.  If the Issuer shall so determine, new Notes so
modified as to conform, in the opinion of the Trustee and the Board of Directors
of the Issuer, to any such supplemental indenture may be prepared and executed
by the Issuer and authenticated and delivered by the Trustee in exchange for
Outstanding Notes.

     SECTION 11.8   AMENDMENT OF LETTER OF CREDIT
                    -----------------------------

     (a)  The Trustee may, without the consent of or notice to the Holders of
the Notes, consent to any amendment, modification or other change of the Letter
of Credit for the purpose of curing any ambiguity or formal defect or omission
or obtaining a rating on the Notes from any Rating Agency, provided that (i) the
Trustee, in its sole judgment, shall determine that such change does not
adversely affect the interests of the Holders of the Notes and (ii) the Trustee
shall receive an Opinion of Note Counsel with respect to the Notes, to the
effect that such change is permitted by applicable law.

     (b)  Except as provided in subsection (a) of this Section, and except for
extensions of the term of the Letter of Credit by the Credit Obligor, no
amendment, modification or other change of the Letter of Credit shall be made
without the consent of the Holders of all Notes Outstanding.

                                       69
<PAGE>
 
                                  ARTICLE XII

                             THE REMARKETING AGENT
                             AND THE TENDER AGENT
                             --------------------

     SECTION 12.1   REMARKETING AGENT
                    -----------------

     (a)  SouthTrust Securities, Inc. is hereby appointed as "Remarketing Agent"
for the Notes, subject to the conditions set forth in this Section.

     (b)  The Remarketing Agent shall signify its acceptance of the duties and
obligations imposed upon it by this Indenture by execution and delivery of an
agreement satisfactory to the Trustee.

     (c)  The Remarketing Agent shall be authorized by law to perform all the
duties imposed upon it by this Indenture.

     (d)  The Remarketing Agent may resign at any time by giving 30 days' prior
written notice thereof to the Issuer, the Trustee, and the Credit Obligor;
provided, however, that no such resignation shall become effective until a
successor Remarketing Agent has been appointed and has accepted its duties and
obligations hereunder.

     (e)  The Issuer may, with the prior written consent of the Credit Obligor,
remove the Remarketing Agent at any time upon 30 days' prior written notice
thereof to the Remarketing Agent, the Issuer and the Trustee.

     (f)  If at any time:

          (1)  the Remarketing Agent shall cease to be eligible under this
     Section and shall fail to resign after written request therefor by the
     Issuer, or

          (2)  the Remarketing Agent shall become incapable of acting or shall
     be adjudged a bankrupt or insolvent or a receiver of the Remarketing Agent
     or of its property shall be appointed or any public officer shall take
     charge or control of the Remarketing Agent or of its property or affairs
     for the purpose of rehabilitation, conservation or liquidation,

then, in any such case, the Issuer may remove the Remarketing Agent upon 7 days'
written notice thereof to the Remarketing Agent and the Credit Obligor.

     (g)  If the Remarketing Agent shall resign, be removed or become incapable
of acting, or if a vacancy shall occur in the office of Remarketing Agent for
any cause, the Issuer shall, with the prior written consent of the Issuer and
the Credit Obligor, promptly appoint a successor Remarketing Agent.

                                       70
<PAGE>
 
     (h)  Any successor Remarketing Agent shall be appropriately registered and
licensed, and be acceptable to the Issuer, the Trustee and to any Rating Agency
which shall then maintain a rating with respect to the Notes.

     (i)  The Trustee shall give notice of each resignation and each removal of
the Remarketing Agent and each appointment of a successor Remarketing Agent by
mailing written notice of such event by first-class mail, postage prepaid, to
the Holders of Notes as their names and addresses appear in the Note Register.
Each notice shall include the name of the successor Remarketing Agent and the
address of its principal office.

     SECTION 12.2   TENDER AGENT
                    ------------

     (a)  At the written request of the Trustee, the Issuer shall appoint an
agent to act on behalf of the Trustee in the acceptance of delivery of Notes
tendered for purchase pursuant to the Optional Tender or Mandatory Tender
provisions of this Indenture and in the authentication and delivery of Notes
pursuant to the transfer and exchange provisions of this Indenture.  For all
purposes of this Indenture, (i) Notes to be purchased pursuant to the Optional
Tender or Mandatory Tender provisions of this Indenture may be delivered to the
Tender Agent, as well as the Trustee, and (ii) the authentication and delivery
of Notes by a duly authorized officer or signatory of the Tender Agent pursuant
to the transfer and exchange provisions of this Indenture shall be deemed to be
the authentication and delivery of Notes "by the Trustee".

     (b)  Any Tender Agent appointed hereunder shall signify its acceptance of
such appointment by execution and delivery of an agreement satisfactory to the
Trustee.

     (c)  Any such Tender Agent shall at all times be a bank or trust company
having its principal office in New York, New York and shall at all times be a
corporation organized and doing business under the laws of the United States or
of any state with a combined capital and surplus of at least $5,000,000 and
authorized under such laws to exercise corporate trust powers and subject to
supervision and examination by federal or state authority and shall be
acceptable to any Rating Agency which shall then maintain a rating with respect
to the Notes.  If such corporation publishes reports of condition at least
annually pursuant to law or the requirements of such authority, then for the
purposes of this Section, the combined capital and surplus of such corporation
shall be deemed to be its combined capital and surplus as set forth in its most
recent report of condition so published.

     (d)  Any corporation or association into which any Tender Agent may be
merged or converted or with which it may be consolidated, or any corporation or
association resulting from any merger, consolidation or conversion to which any
Tender Agent shall be a party, or any corporation or association succeeding to
the corporate trust business of any Tender Agent, shall be the successor of the
Tender Agent hereunder, if such successor corporation or association is
otherwise eligible under this Section, without the execution or filing of any
further act on the part of the parties hereto or the Tender Agent or such
successor corporation or association.

                                       71
<PAGE>
 
     (e)  Any Tender Agent may at any time resign by giving written notice of
resignation to the Trustee and the Issuer.  The Trustee may at any time
terminate the agency of any Tender Agent by giving written notice of termination
to such Tender Agent and the Issuer.  Upon receiving such a notice of
resignation or upon such a termination, or in case at any time any Tender Agent
shall cease to be eligible under this Section, the Trustee shall promptly
appoint a successor Tender Agent, shall give written notice of such appointment
to the Issuer, and shall mail notice of such appointment to all Holders of Notes
as the names and addresses of such Holders appear on the Note Register.

     (f)  The Issuer shall to pay to the Tender Agent from time to time
reasonable compensation for its services.


                                 ARTICLE XIII

                                  DEFEASANCE
                                  ----------

     SECTION 13.1   PAYMENT OF INDEBTEDNESS; SATISFACTION AND DISCHARGE OF
                    ------------------------------------------------------
INDENTURE
---------

     (a)  Whenever all Indenture Indebtedness has been Fully Paid, then, upon
the request of an Authorized Issuer Representative, this Indenture and the lien,
rights and interests created hereby shall cease, determine and become null and
void (except as to any surviving rights of transfer or exchange of Notes herein
or therein provided for) and the Trustee shall execute and deliver a termination
statement and such instruments of satisfaction and discharge as may be necessary
and pay, assign, transfer and deliver to the Issuer or upon the order of the
Issuer, all cash and securities then held by it hereunder as a part of the Trust
Estate.

     (b)  A Note shall be deemed "Fully Paid" if

          (1)  such Note has been canceled by the Trustee or delivered to the
     Trustee for cancellation, or

          (2)  such Note shall have matured or been called for redemption and,
     on such maturity date or redemption date, money for the payment of Debt
     Service on such Note is held by the Trustee in trust for the benefit of the
     person entitled thereto, or

          (3)  such Note is alleged to have been mutilated, destroyed, lost or
     stolen and has been replaced as provided in Section 5.3, or

          (4)  a trust for the payment of such Note has been established in
     accordance with Section 13.2 and the Trustee shall have received (i) an
     Opinion of Counsel experienced in bankruptcy matters stating in effect that
     upon the occurrence of an Act of Bankruptcy, money and investments in such
     trust will not be subject to any preference

                                       72
<PAGE>
 
     claim under the Federal Bankruptcy Code, which opinion shall be
     satisfactory to any Rating Agency then rating the Notes and (ii) a
     certificate of an Independent certified public accountant or firm thereof
     to the effect that the funds on deposit in such trust and the income
     therefrom without reinvestment will be sufficient to pay when due the
     principal of, premium if any and interest on such Notes.  The Issuer shall
     give each Rating Agency that maintains a rating with respect to the Notes
     10 days' notice of its intent to establish such a trust for the payment of
     Notes, but failure to give any such notice shall not result in a Note not
     being deemed Fully Paid.

     (c)  Indenture Indebtedness other than Debt Service on the Notes shall be
deemed "Fully Paid" whenever the Issuer has paid, or made provisions
satisfactory to the Trustee for payment of, all such Indenture Indebtedness
other than Debt Service on the Notes.

     SECTION 13.2   TRUST FOR PAYMENT OF DEBT SERVICE
                    ---------------------------------

     (a)  The Issuer may provide for the payment of any of the Notes by
establishing a trust for such purpose with the Trustee and depositing therein
cash or Federal Securities which (assuming the due and punctual payment of the
principal of and interest on such Federal Securities) will provide funds
sufficient to pay the Debt Service on such Notes as the same becomes due and
payable until the maturity or redemption of such Notes; provided, however, that

          (1)  such Federal Securities must not be subject to redemption prior
     to their respective maturities at the option of the issuer of such
     Securities,

          (2)  if any of such Notes are to be redeemed prior to their respective
     maturities, either (i) the Trustee shall receive evidence that notice of
     such redemption has been given in accordance with the provisions of this
     Indenture and such Notes or (ii) the Issuer shall confer on the Trustee
     irrevocable authority for the giving of such notice on behalf of the
     Issuer,

          (3)  such trust must be established only during a Fixed Rate Period
     and, if established during a Fixed Rate Period, all Notes to be retired
     with funds from such trust must either mature or be called for redemption
     on or before the date immediately following such Fixed Rate Period, and

          (4)  the Trustee has received the opinions referred to in Section
     13.1(b)(4).

     (b)  Cash and Federal Securities deposited with the Trustee pursuant to
this Section shall not be a part of the Trust Estate but shall constitute a
separate, irrevocable trust fund for the benefit of the Holders of the Notes to
be paid from such fund. Such cash and the principal and interest payable on such
Federal Securities shall be applied by the Trustee solely to the payment of Debt
Service on such Notes. Any funds deposited with the Trustee pursuant to this
Section shall be invested only in Federal Securities meeting the requirements of
this Section.

                                       73
<PAGE>
 
     IN WITNESS WHEREOF, the Issuer and the Trustee have caused this instrument
to be duly executed, and their respective corporate seals to be hereunto affixed
and the same attested, by officers thereof, or in the case of the Trustee,
signatories thereof, duly authorized thereunto.

                                          LA-MAN CORPORATION


                                          By____________________________________
                                            Its President
 
[S E A L]

Attest:

___________________________________ 
     Its Assistant Secretary

                                          SOUTHTRUST BANK, NATIONAL
                                          ASSOCIATION, as Trustee


                                          By____________________________________

                                          Its___________________________________


[S E A L]

Attest:

___________________________________

Its________________________________

                                       74
<PAGE>
 
STATE OF FLORIDA
COUNTY OF VOLUSIA

     The foregoing instrument was acknowledged before me this 28th day of
August, 1997, by J. William Brandner, the President of La-Man Corporation, a
Nevada corporation, on behalf of the corporation.  Such person did not take an
oath and:  (notary must check applicable box)

[_]  is/are personally known to me.

[_]  produced a current Florida driver's license as identification.

[_]  produced _______________________________________________ as identification.


{Notary Seal must be affixed}  _________________________________________________
                               Signature of Notary


                               _________________________________________________
                        
                               Name of Notary (Typed, Printed or Stamped)

                               Commission Number (if not legible on seal):______

                               My Commission Expires (if not legible on seal):__

                                       75
<PAGE>
 
STATE OF FLORIDA
COUNTY OF VOLUSIA

     The foregoing instrument was acknowledged before me this 28th day of
August, 1997, by Scott A. Schuhle, the authorized signatory of SouthTrust Bank,
National Association, a national banking association, on behalf of the
association.  Such person did not take an oath and:  (notary must check
applicable box)

[_]  is/are personally known to me.

[_]  produced a current __________________ driver's license as identification.

[_]  produced _______________________________________________ as identification.


{Notary Seal must be affixed}  _________________________________________________
                               Signature of Notary


                               _________________________________________________
                               Name of Notary (Typed, Printed or Stamped)

                               Commission Number (if not legible on seal):______


                               My Commission Expires (if not legible on seal):__

                                       76
<PAGE>
 
                                   EXHIBIT A
                                      TO

                                TRUST INDENTURE

                          DATED AS OF AUGUST 1, 1997

                              LA-MAN CORPORATION

                                      TO

                     SOUTHTRUST BANK, NATIONAL ASSOCIATION



The form of the Notes begins on the following page.
<PAGE>
 
                                   EXHIBIT B

                                      TO

                                TRUST INDENTURE

                          DATED AS OF AUGUST 1, 1997

                              LA-MAN CORPORATION

                                      TO

                     SOUTHTRUST BANK, NATIONAL ASSOCIATION


         The form of Requisition is contained on the following pages.
<PAGE>
 
                                   EXHIBIT C

                                      TO

                                TRUST INDENTURE

                          DATED AS OF AUGUST 1, 1997

                              LA-MAN CORPORATION

                                      TO

                     SOUTHTRUST BANK, NATIONAL ASSOCIATION


    The form of Optional Tender Notice is contained on the following pages.

<PAGE>
 
                            Optional Tender Notice
                            ----------------------

SouthTrust Bank, National Association
Ft. Lauderdale, Florida
as Trustee

     Re:  Variable/Fixed Rate Promissory Notes, issued by La-Man Corporation
          Pursuant to Trust Indenture dated August 1, 1997
          ----------------------------------------------------------------------

     The undersigned is the registered owner of the following Note, which is
part of the above-referenced issue of Notes:

     Certificate Number (if applicable): ___________________
     Principal Amount:                   ___________________

The undersigned hereby elects to have (check one as appropriate, and be certain
to designate the principal amount tendered, if less than the entire amount):

     ______ the entire principal amount
            
     ______ $_____________ (must be an authorized multiple of the smallest 
            Authorized Denomination) of the principal amount of such Note

purchased on the following date (specify a Business Day that is at least 7 days
after notice of tender is delivered to the Trustee):

                            ________________________
                             [Optional Tender Date]