Document:

<PAGE>   1
                                                                     EXHIBIT 4.1

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

                             SERIES TRUST AGREEMENT

                                     between

                       CORPORATE ASSET BACKED CORPORATION
                                  as Depositor

                                       and

                              THE BANK OF NEW YORK,
                                   as Trustee

                                       and

                         THE BANK OF NEW YORK, Delaware
                               as Delaware Trustee

                                  Series 200_-_

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<PAGE>   2
                                                                     EXHIBIT 4.1

                             TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                          Page
                                                                          ----
<S>                                                                       <C>
A.  Creation of Trust; Trust Assets and Obligations..................       1
B.  Name of Trust....................................................       1
C.  [Delaware Trustee................................................       1]
D.  The Certificates.................................................       2
E.  Form of the Certificates.........................................       2
F.  [The Notes.......................................................       2]
G.  Underwriting Agreement...........................................       2]
H.  Allocation of Voting Rights......................................       2
I.  [Events of Default under this Series Trust Agreement.............       3]
J.  [Swap Agreement] [and] [Related Agreements]......................       3]
K.  [Credit Enhancement Agreements...................................       3]
L.  Termination of the Trust and this Series Trust Agreement.........       3
M.  Certain Definitions..............................................       3
N.  Trustee Elections................................................       4
O.  [Amendment of Certain Provisions of the Standard Terms...........       4]
</TABLE>

Exhibit A   --    Underlying Securities Schedule -- Identification of the
                  Underlying Securities

Exhibit B   --    Terms of the Certificates

Exhibit C   --    Forms of the Certificates

[Exhibit D  --    Delaware Certificate of Trust]

Schedule 1  --    [Notes and ]Certificates Standard Terms and Provisions
                  of Trust Agreement [(New York)][(Delaware)]

                                       i
<PAGE>   3
                                                                     EXHIBIT 4.1

                             SERIES TRUST AGREEMENT
                                       for
                            CABCO SERIES 200_-_ TRUST

            This series trust agreement (this "Series Trust Agreement"),
dated _________, 200_, between Corporate Asset Backed Corporation, as
depositor (the "Depositor"), The Bank of New York, as trustee (the
"Trustee") and The Bank of New York, Delaware, as Delaware trustee (the
"Delaware Trustee") for CABCO Series 200_-_ Trust (the "Trust"), which is
issuing [$_________] in Certificate Principal Balance of trust
certificates (the "Certificates") [and $[______] aggregate notes principal
balance of Series 200_ Notes (the "Notes" and collectively with the
Certificates, or each separately, the "Securities")], incorporates by
reference the [Notes and] Certificates Standard Terms and Provisions of
Trust Agreement [(New York)][(Delaware)] attached as Schedule 1 hereto
(the "Standard Terms"), and is governed by the Standard Terms as fully as
if set forth herein at length; provided, that in the event of any conflict
between (a) the provisions actually set forth in the Forepart (as defined
below), and (b) the provisions set forth in the Standard Terms and
incorporated herein by reference, the former shall control.  For purposes
of the foregoing, the "Forepart" shall mean the forepart of this Series
Trust Agreement, consisting of the provisions contained on this page and
each consecutive page thereafter to and including the signature page (page
__), together with all Exhibits hereto (which are hereby incorporated by
reference and shall be part of this Series Trust Agreement as fully as if
set forth herein at length), other than the Standard Terms.  All
capitalized terms not defined herein shall have the meanings assigned to
such terms in the Standard Terms.

                              W I T N E S S E T H:
                               - - - - - - - - - -

            A. Creation of Trust; Trust Assets and Obligations. [A trust is
hereby created under the laws of the State of New York][The terms of a trust
previously created under the laws of the State of Delaware by the filing of a
Certificate of Trust with the Secretary of State of the State of Delaware on
_______, 200_ are hereby established], in the manner specified in Sections 2.1
and 2.5 of the Standard Terms, for the benefit of the registered holders of the
Certificates (the "Certificateholders"). The assets of the Trust shall consist
of (i) the securities described in Exhibit A hereto (referred to herein and in
the Standard Terms as the "Underlying Securities"), which are being sold to the
Trustee by [the Depositor] [insert other Person] simultaneously with the
execution hereof,[ and] (ii) all right, title and interest in and to
distributions on the Underlying Securities, after the date hereof[ and (iii) any
other Trust Assets specified in Exhibit A]. The Trustee shall hold the assets of
the Trust for the benefit of the holders of the Certificates, subject to the
obligations of the Trust[, and subject to the prior pledge thereof to the
Indenture Trustee (as defined below) for the benefit of holders of the Notes,
the Swap Counterparty and the parties to any Related Agreement or Credit
Enhancement Agreement, pursuant to the indenture (described below) dated as of
the date hereof (the "Indenture")]. The obligations of the Trust consist of its
obligations [under the Swap Agreement[, [insert Related Agreements]] and its
obligations] to the Trustee hereunder. [Notwithstanding the provisions in the
Standard Terms, the Trustee shall not enter into any [Swap Agreement][ or][ any
Related Agreement] with any Person.]

            B. Name of Trust. The name of the Trust is CABCO Series 200_-_
Trust.

            C. [Delaware Trustee. The Delaware Trustee is appointed to serve as
the trustee of the Trust in the State of Delaware for the sole purpose of
satisfying the requirement of Section 3807(a) of the Trust Statute that the
Trust have at least one trustee with a principal place of business in Delaware.
It is understood and agreed by the parties hereto that the Delaware Trustee
shall have none of the duties or liabilities of the Trustee. The duties of the
Delaware Trustee shall be limited to (i) accepting legal process

                                       1
<PAGE>   4
                                                                     EXHIBIT 4.1

served on the Trust in the State of Delaware and (ii) the execution of any
certificates required to be filed with the Delaware Secretary of State which the
Delaware Trustee is required to execute under Section 3811 of the Trust Statute.
To the extent that, at law or in equity, the Delaware Trustee has duties
(including fiduciary duties) and liabilities relating thereto to the Trust or
the Certificateholders, it is hereby understood and agreed by the other parties
hereto that such duties and liabilities are replaced by the duties and
liabilities of the Delaware Trustee expressly set forth in this Series Trust
Agreement. The Delaware Trustee shall be entitled to all of the same rights,
protections, indemnities and immunities as the Trustee under this Series Trust
Agreement. The Delaware Trustee may resign at any time by giving at least 30
days' prior notice to the Trustee and the Depositor, such resignation to become
effective upon the appointment by the Depositor of a successor Delaware
Trustee.]

            D. The Certificates. The Certificates shall be issued in __ Classes,
in the respective [principal balances][notional amounts] set forth in Exhibit B
hereto; shall have the standard terms set forth in the Standard Terms, to the
extent not in conflict with the nonstandard terms actually set forth in the
Forepart (including Exhibits A, B[,] [and] C [and D] hereto); and shall have the
nonstandard terms actually set forth in the Forepart (including Exhibits A,
B[,][ and] C[ and D] hereto). The Certificates shall be issued in substantially
the forms set forth in Exhibit C to this Series Trust Agreement, with such
necessary or appropriate changes as shall be approved by the Depositor and the
Trustee, such approval to be manifested by the execution and authentication
thereof by the Trustee. The Certificates shall evidence a Beneficial Ownership
Interest in the assets of the Trust, subject to the liabilities of the Trust,
and shall be payable solely from payments or property received by the Trustee on
or in respect of the Underlying Securities[ and the Swap Agreement and any
Related Agreement or Credit Enhancement Agreement]. [Each Certificateholder, by
its acceptance of a Certificate, shall be deemed to have acknowledged and agreed
that its rights to receive distributions in respect of the Certificate are
subordinated to the extent set forth in Sections 8.4 and 10.3 of the Indenture
to the rights of the Noteholders under the Indenture.]

            E. Form of the Certificates. The Trustee shall execute and deliver
the Certificates in the form of one or more global Certificates registered in
the name of Cede & Co. as nominee of DTC.

            F. [The Notes. The Trustee, on behalf of the Trust, shall execute
the Indenture with [insert name of the indenture trustee] (the "Indenture
Trustee"), as indenture trustee for the holders of the Notes, and shall execute
and deliver the Notes in __ Classes, in the respective principal balances,
substantially in the form of global Notes attached as Exhibit A to the Indenture
and including the standard terms set forth in therein. The Notes shall be
secured by a first priority security interest in the assets of the Trust
pursuant to the Indenture, and shall be payable solely from payments or property
received by the Trustee on or in respect of the Underlying Securities [and the
Swap Agreement and any Related Agreement or Credit Enhancement Agreement]

            G. Underwriting Agreement. The Trust is selling the Securities
directly to [UBS Warburg LLC][ and ][UBS PaineWebber Inc.] (the "Underwriters").
The Trustee, on behalf of the Trust, shall execute an underwriting agreement
with the Underwriters in such form as may be approved by the Depositor, the
Trustee and the Underwriters.

            H. Allocation of Voting Rights. [The holders of the Class __, __ and
__ Certificates shall have __%, __%, and __%, respectively, of the total Voting
Rights of the Certificates. All Voting Rights with respect to the Certificates
will be allocated among all Certificateholders in proportion to the respective
principal balances of the then-Outstanding Certificates held by such
certificateholders on any date of determination.] [Specify whether and under
what circumstances voting will be class-by-class or

                                       2
<PAGE>   5
                                                                     EXHIBIT 4.1

as a single class.] [Specify conditions, if any, under which allocation of
Voting Rights might change from the foregoing percentages, subject to Sections
5.2 and 5.3 of the Standard Terms.]

            I. [Events of Default under this Series Trust Agreement. Any of the
following events shall be an "Event of Default" under this Series Trust
Agreement: [insert list].

            [Within [30] days after the occurrence of an Event of Default in
respect of the Certificates of any Class, the Trustee will give to the holders
of the Certificates notice, transmitted by mail, of all uncured or unwaived
Events of Default actually known to it. However, except in the case of an Event
of Default relating to the payment of principal of or premium, if any, or
interest on any of the Underlying Securities, the Trustee is protected in
withholding the notice if it determines in good faith that withholding the
notice is in the interest of the holders of the Certificates of the Class.]

            J. [Swap Agreement] [and] [Related Agreements]. [The Trustee shall,
on behalf of the Trust, execute the [Swap Agreement] [and] [the following
Related Agreements]:

                  [insert list of Related Agreements]

            K. [Credit Enhancement Agreements. The Trustee shall, on behalf of
the Trust, execute the following Credit Enhancement Agreements:

                  [insert list]

      A.    The Trustee shall on behalf of the Certificateholders present claims
            under each Credit Enhancement Agreement to which the Trust is a
            party, and shall take such reasonable steps as may be necessary to
            receive payment or to permit recovery under those instruments with
            respect to defaulted Trust Assets.]

      B.    L. Termination of the Trust and this Series Trust Agreement. The
            Trust and this Series Trust Agreement shall terminate in accordance
            with Article VIII of the Standard Terms . [The Depositor will have
            the right to purchase all remaining Underlying Securities and other
            Trust Assets in the Trust and thereby effect early retirement of the
            Certificates on any Distribution Date, [(i)] once the aggregate
            principal balance of the Underlying Securities at the time of
            purchase is not more than [specify percentage not greater than 10%]
            of the aggregate principal balance of the Underlying Securities as
            of the Closing Date [and (ii) at the option of the Depositor at
            [specify when and on what terms any option may be exercised]. In the
            event that the Depositor exercises such option, the portion of the
            purchase price allocable to the Certificates of each Class will be,
            to the extent of available funds, [100% of their then aggregate
            Outstanding Certificate Principal Balance, as applicable, plus with
            respect to the Certificates [one month's] [three months'] [specify
            other period] interest at the [Interest Rate (as specified in
            Exhibit B hereto) plus, with respect to each Class of Certificates,
            any previously accrued but unpaid interest thereon.] [Specify
            alternative allocation method if different from above.]]

            M. Certain Definitions.

                  "Business Day":  For purposes of this Series Trust
Agreement, unless otherwise indicated, any day other than a Saturday, a
Sunday or a day on which banking institutions in New York, New York,
Newark, Delaware or Wilmington, Delaware are authorized or obligated by
law or executive order to be closed.

                                       3
<PAGE>   6
                                                                     EXHIBIT 4.1

                  ["Required Percentage - Amendment": For purposes of this
Series Trust Agreement, [66-2/3%] of the aggregate Voting Rights of those
Certificates that are materially adversely affected by any modification or
amendment of this Series Trust Agreement.]

                  ["Required Percentage - Remedies": For purposes of this Series
Trust Agreement, 25% of the aggregate Voting Rights of the Certificates.]

                  ["Required Percentage - Waiver": For purposes of this Series
Trust Agreement, [50]% of the aggregate Voting Rights of the Certificates.]

                  "Swap Counterparty": [UBS AG, London branch].

                  "Underlying Securities Event of Default": An event of default
under the indenture or other similar document pursuant to which the Underlying
Securities were issued.

                  "Underlying Securities Acceleration": The acceleration of the
Underlying Securities after an Underlying Securities Event of Default.

                  ["Underlying Securities Acceleration Distribution
Date":  The date on which the Trustee makes an in-kind distribution of the
Underlying Securities to the Certificateholders, which shall be as soon as
practicable after the date of acceleration of the Underlying Securities,
but in no event more than five (5) Business Days after the date of
acceleration of the Underlying Securities.]

            N. Trustee Elections.

                  (1)   In the event the Internal Revenue Service
      successfully recharacterizes the Trust as a partnership for federal
      income tax purposes, the Trustee, on behalf of all of the past and
      present partners of such partnership, will, to the extent possible,
      elect out of subchapter K of the Code pursuant to Treasury
      Regulation Section 1.761-2.  Such election will, to the extent possibLe,
      be effective for the first taxable year of the Trust and
      thereafter.  Each Certificateholder is deemed to consent to such
      election.

                  (2)   The Depositor shall neither make nor direct the
      Trustee to make an election under Treasury Regulation Section 301.7701-3
      for the Trust to be classified as an association for federal tax
      purposes.

            [O. Amendment of Certain Provisions of the Standard Terms. Sections
__, __ and __ are hereby amended to read in their entirety as follows:

            [insert amended Sections as needed]

            [insert details of the Corporate Trust Office, as defined in
the Standard Terms]

            [specify, if applicable, any higher rating as contemplated in
the definition of Eligible Trust Account]

            [insert provisions, as necessary, for index-linked, foreign
currency, multi-currency Certificates and put option, if any]

            [insert provisions, as necessary, providing for status of
trust as other than grantor trust]

                                       4
<PAGE>   7
                                                                     EXHIBIT 4.1

            [specify the name and address for notices of the Rating Agencies]

            [specify if the Rating Agency Condition applies in the case of the
extension of the maturity of any Certificates]

            [specify if any bank account of the Trustee shall be located in a
jurisdiction other than the State of New York]

            [specify the seniority or subordination among the Classes of
Certificates]

            [if other than the Trustee, specify initial Certificate Registrar
for Section 3.3 of the Standard Terms]

            [specify if the manner for calculating the interest rate applicable
to the Certificates and the Notes]

            [insert, as needed, provisions allowing the transfer of securities
to a Benefit Plan or modifying the ERISA legend described in Section 3.13 of the
Standard Terms]

            [insert appropriate date for reports contemplated in Section 4.1(b)
of the Standard Terms]

            [specify if moneys held in the Collection Account may be reinvested,
pending application pursuant to Sections 6.2 or 8.2 of the Standard Terms],

            [insert priority waterfall as needed, modifying or amending Sections
6.2 and 8.2 of the Standard Terms]

            [insert priority of payments among the Swap Agreement, the Related
Agreements and the Credit Enhancement Agreements]

            [insert the name and address of any Person, other than the Depositor
and the Certificateholders, to receive the reports of Section 6.5]

            [specify a long-term unsecured debt rating of the Trustee or its
parent company different than the ratings of Section 7.14(a)(v)]

            [insert, as needed, modified Section 7.16 to include the obligation
of the Trustee to provide annual statement of independent public accountants,
relating to the administration of the Trust Assets during the 12-month period]

            [insert provisions describing retained interest, if any]

            [insert provision, if applicable, providing for an Underlying
Securities Acceleration Distribution Date, except upon a termination of the
Trust as set forth in Section 8.1 or 8.2 of the Standard Terms.]

            [insert provisions amending Section 7.10 of the Standard Terms, if
any, to provide for any right of the Trustee to payment from the assets of the
Trust]

                                       5
<PAGE>   8
                                                                     EXHIBIT 4.1

            [insert, as needed, provisions amending Section 8.1 providing for
price or manner of determination of price at which Trust Assets may be purchased
under that section, and provide that payment of the proceeds thereof shall be
applied to the Certificates on termination of the Trust]

            [insert provision for liquidation of Underlying Securities for
purposes of Section 8.2 of the Standard Terms]

            [Specify the required approval of Noteholders for the amendments
described under Section 9.2(a)]

            [insert, as needed, provisions for appointment of administrative
agent]

            [insert, as needed, provision for Depositor's exchange right]

            Section __ of the Standard Terms is hereby deleted in its entirety,
and shall not apply to CABCO Series 200_-_ Trust.]

                                       6
<PAGE>   9
                                                                     EXHIBIT 4.1

            IN WITNESS WHEREOF, the parties hereto have caused this Series
Trust Agreement to be executed by their respective duly authorized
officers or authorized signatories as of the date first above written.

                                       CORPORATE ASSET BACKED CORPORATION

                                       By:__________________________
                                          Authorized Signatory

                                       THE BANK OF NEW YORK

                                       By:__________________________
                                          Responsible Officer or
                                          Authorized Signatory

                                       [THE BANK OF NEW YORK, DELAWARE]

                                       [By:_________________________
                                           Responsible Officer or
                                           Authorized Signatory]

Exhibit A   --    Underlying Securities Schedule -- Identification of the
                    Underlying Securities

Exhibit B   --    Terms of the Certificates

Exhibit C   --    Form of the Certificates

[Exhibit D  --    Delaware Certificate of Trust]

Schedule 1  --    [Notes and ]Certificates Standard Terms and Provisions
                  of Trust Agreement [(New York)][(Delaware)]

                                       7
<PAGE>   10
                                                                     EXHIBIT 4.1

                                                                       EXHIBIT A
                                                       TO SERIES TRUST AGREEMENT

                   IDENTIFICATION OF THE UNDERLYING SECURITIES

Underlying Securities Issuer:

Underlying Securities:

[Range of] Original Issue Date[s]:

Maturity Date:

[Amortization][Accumulation Schedule]:

Original Principal                            $
Amount Issued:

CUSIP No.:

[Range of][Stated] Interest Rate[s]:

[Range of] Interest Payment Dates:

Principal Amount of                           $
Underlying Securities Deposited
Under Series Trust Agreement:

Priority:

[Collateral][Unsecured Obligations]:

[Redemption/put/call/ other features]:

Exchange Listing:

Denominations; Currency:

[Underlying Securities Agreement[s]:]

                    IDENTIFICATION OF THE OTHER TRUST ASSETS

The Underlying Securities an the other Trust Assets will be held by the
Trustee as book-entry credits to an account of the Trustee or its agent at
The Depository Trust Company, New York, New York ("DTC").

                                      A-1
<PAGE>   11
                                                                     EXHIBIT 4.1

                                                                       EXHIBIT B
                                                       TO SERIES TRUST AGREEMENT

                            TERMS OF THE CERTIFICATES

I.    Terms of the Certificates.

<TABLE>
<S>                                              <C>
Aggregate [Principal Balance] of Certificates
   Series 200_-_:                                [$] [(notional amount)]

   Aggregate [Principal Balance]  of Class _
     Certificates                                [$][(notional amount)]

   Aggregate [Principal Balance] of Class _
     Certificates                                [$][(notional amount)]
Authorized Denomination:                         [$][1,000] and integral multiples thereof

Ratings:

Class Seniority or Subordination:

Closing Date:

Original Issue Date:

[Cut-off Date:]

Distribution Dates:

Interest Rate:                                   In respect of the Class [specify Classes] Certificates, [specify
                                                 appropriate percentages] per annum
Maturity Date / Termination Date:

Record Date:                                     [With respect to any Distribution Date, the day immediately
                                                 preceding such Distribution Date.]

Denominations; Specified Currency:

Initial Certificate Registrar:                   The Bank of New York

Corporate Trust Office:                          The Bank of New York
                                                 c/o United States Trust Company of New York

                                                 -------------
                                                 [Delaware][New York]
                                                 Attention: Corporate Trust
</TABLE>

                                      B-1
<PAGE>   12
                                                                     EXHIBIT 4.1

                                                                       EXHIBIT C
                                                       TO SERIES TRUST AGREEMENT

                              [FORM OF CERTIFICATE]

                     CABCO TRUST CERTIFICATES, SERIES 200_-_

                                     [FACE]

NO EMPLOYEE BENEFIT PLAN (AS DEFINED IN SECTION 3(3) OF ERISA) WHICH IS
SUBJECT TO ERISA, NO PLAN (AS DEFINED IN SECTION 4975(e)(1) OF THE CODE,
OTHER THAN A GOVERNMENTAL OR CHURCH PLAN DESCRIBED IN SECTION 4975(g)(2)
OR (3) OF THE CODE) WHICH IS SUBJECT TO SECTION 4975 OF THE CODE, NO
GOVERNMENTAL OR CHURCH PLAN THAT IS SUBJECT TO ANY FEDERAL, STATE OR LOCAL
LAW THAT IS, TO A MATERIAL EXTENT, SIMILAR TO THE PROHIBITED TRANSACTION
PROVISIONS OF ERISA OR SECTION 4975 OF THE CODE, AND NO ENTITY WHOSE
UNDERLYING ASSETS INCLUDE "PLAN ASSETS" BY REASON OF ANY SUCH PLAN'S
INVESTMENT IN THE ENTITY (EXCLUDING ANY ENTITY REGISTERED UNDER THE
INVESTMENT COMPANY ACT OF 1940, AS AMENDED) (EACH, A "PLAN"), OR ANY
PERSON ACTING ON BEHALF OF ANY PLAN, MAY PURCHASE OR HOLD A CERTIFICATE OR
ANY INTEREST THEREIN.

THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE SERIES
TRUST AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF
THE DEPOSITORY TRUST COMPANY ("DTC") OR A NOMINEE OF DTC.  THIS
CERTIFICATE IS EXCHANGEABLE FOR CERTIFICATES REGISTERED IN THE NAME OF A
PERSON OTHER THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES
DESCRIBED IN THE SERIES TRUST AGREEMENT AND MAY NOT BE TRANSFERRED EXCEPT
AS A WHOLE BY DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
DTC TO THE TRUST OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE &
CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS
IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER,
PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS
WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
INTEREST HEREIN.

This Certificate does not represent an interest in or obligation of the
Depositor, the Trustee or any of their Affiliates, except to the extent
described herein.

                                      C-1
<PAGE>   13
                                                                     EXHIBIT 4.1

CERTIFICATE NUMBER ___                                           [$]__________
CUSIP No.: ____________                               Initial Principal Amount

                     CABCO TRUST CERTIFICATE, SERIES 200_-_

                        [ %] [FLOATING] PASS-THROUGH RATE

evidencing a beneficial ownership interest in the Trust, as defined below,
the assets of which include principally $[__] aggregate principal amount
of __________________________ (the "Underlying Securities") and[, subject
to the prior right of the holders of the notes (the "Notes") issued by the
Trust, pursuant to an Indenture dated____, 200_ (the "Indenture") between
the Trust and ___, as indenture trustee (the "Indenture Trustee")] all
payments received thereon.

      THIS CERTIFIES THAT _____________________is the registered owner of
a nonassessable, fully-paid, beneficial ownership interest in CABCO Series
200_-_ Trust (the "Trust") formed by Corporate Asset Backed Corporation,
as depositor (the "Depositor").

      The Trust was created pursuant to a Series Trust Agreement, dated as
of ________, 200_, into which Standard Terms and Provisions of Trust
Agreement have been incorporated by reference (as amended and supplemented
from time to time, the "Series Trust Agreement"), between the Depositor,
The Bank of New York, as trustee (the "Trustee") and The Bank of New York,
Delaware, as Delaware trustee.  A summary of certain of the pertinent
provisions of the Series Trust Agreement is set forth below.  To the
extent not otherwise defined herein, the capitalized terms used herein
have the meanings assigned to them in the Series Trust Agreement.

      This Certificate is issued under and is subject to the terms,
provisions and conditions of the Series Trust Agreement, to which Series
Trust Agreement the Certificateholder by virtue of the acceptance hereof
assents and by which such Certificateholder is bound.  The assets of the
Trust include the Underlying Securities and all proceeds of the Underlying
Securities.  Capitalized terms used but not defined herein have the
meanings specified in the Series Trust Agreement.  [The Trust Assets are
pledged on a to the Indenture Trustee on behalf of the holders of the
Notes.]

      Subject to the terms and conditions of the Series Trust Agreement,
(including the availability of funds for distributions and any applicable
grace period or cure period) and to the prior obligation of the Trust to
pay all unpaid fees and expenses owed to any of the Trustee or its agents,
up to the allowable expense amounts for the related collection period, and
all other obligations of the Trust [including the Notes], there shall be
distributed on the dates specified in the Series Trust Agreement (the
"Distribution Dates"), to the Person in whose name this Certificate is
registered at the close of business on the Record Date specified in the
Series Trust Agreement, such Certificateholder's beneficial ownership
interest in the amount of distributions in respect of the Certificate
Principal Balance to be distributed to Certificateholders on the
Distribution Date.

      The distributions in respect of this Certificate are payable in such
[coin or currency of the United States of America][other specified
currency, as set forth in the Series Trust Agreement] as at the time of
payment is legal tender for payment of public and private debts.

      [By acceptance of this Certificate, the holder hereof acknowledges
and agrees that the rights to distributions hereunder are subordinate to
the rights of holders of the Notes as described in the Indenture.
Notwithstanding anything to the contrary in the Series Trust Agreement, no
distributions shall be made to the holder of this Certificate on any date
until the holders of the Notes have received all payments of

                                      C-2
<PAGE>   14
                                                                     EXHIBIT 4.1

interest and principal due and owing to them as of such date. In the event that
any payment or distribution of assets of the Trust is received by the holder of
this Certificate contrary to the preceding sentence, such payment or
distribution shall be held in trust for the benefit of and shall be paid
immediately over to the Indenture Trustee for payment of any interest and
principal due and owing to the holders of the Notes as of such date remaining
unpaid after giving effect to any concurrent payment or distribution to the
holders of the Notes.]

      It is the intent of the Depositor and the Certificateholders that
the Trust will be classified as a [grantor trust under subpart E, Part I
of subchapter J of the][partnership] [specify other form] for purposes of
the Internal Revenue Code of 1986.  Except as otherwise required by
appropriate taxing authorities, the Depositor and the Trustee, by
executing the Series Trust Agreement, and each Certificateholder, by
acceptance of a Certificate, agrees to treat, and to take no action
inconsistent with the treatment of, the Certificate for such tax purposes
as interests in a [grantor trust][ partnership][ other], and the
provisions of the Series Trust Agreement shall be interpreted to further
this intention of the parties.

      Distributions on this Certificate shall be made as provided in the
Series Trust Agreement by the Trustee by wire transfer or check mailed to
the Certificateholder of record in the Certificate Register without the
presentation or surrender of this Certificate or the making of any
notation hereon.  Except as otherwise provided in the Series Trust
Agreement and notwithstanding the above, the final distribution on this
Certificate shall be made after due notice by the Trustee of the pendency
of such distribution and only upon presentation and surrender of this
Certificate at the office maintained for such purpose by the Trustee in
the Borough of Manhattan, the City of New York.

      This Certificate does not represent an obligation of, or an interest
in, the Depositor, the Trustee or any Affiliates of any of them and no
recourse may be had against such parties or their assets, except as may be
expressly set forth or contemplated herein or in the Basic Documents.  In
addition, this Certificate is not guaranteed by any governmental agency or
instrumentality and is limited in right of payment to certain collections
with respect to the Trust Assets, all as more specifically set forth
herein and in the Series Trust Agreement.

      This Certificate does not purport to summarize the Series Trust
Agreement and reference is hereby made to the Series Trust Agreement for
information with respect to the rights, benefits, obligations and duties
evidenced thereby.  A copy of the Series Trust Agreement may be examined
during normal business hours at the Corporate Trust Office of the Trustee,
located at ____________________________, __________ and at such other
places, if any, designated by the Trustee, by any Certificateholder upon
request.

      Reference is hereby made to the further terms of this Certificate
set forth on the reverse hereof, which further terms shall for all
purposes have the same effect as if set forth at this place.

      [This Certificate shall be shall be construed in accordance with the
laws of the State of New York, without reference to any conflict of law
provision that would require the application of the substantive law of
another state, other than Section 5-1401 of the General Obligations Law,
and the obligations, rights and remedies of the parties hereunder shall be
determined in accordance with such laws.]  [This Certificate shall be
construed in accordance with the laws of the State of Delaware, without
reference to any conflict of law provision that would require the
application of the substantive law of another state, and the obligations,
rights and remedies of the parties hereunder shall be determined in
accordance with such laws, except that the provisions of the Series Trust
Agreement with respect to the

                                      C-3
<PAGE>   15
                                                                     EXHIBIT 4.1

transfer of the Trust Assets to the Trust by the Depositor shall be construed in
accordance with the Laws of the State of New York.]

      Unless the certificate of authentication hereon shall have been
executed by an authorized officer or Authorized Signatory of the Trustee
by manual signature, this Certificate shall not entitle the
Certificateholder hereof to any benefit under the Series Trust Agreement
or be valid for any purpose.

                                      C-4
<PAGE>   16
                                                                     EXHIBIT 4.1

      IN WITNESS WHEREOF, the Trustee, on behalf of the Trust, has caused
this Certificate to be duly executed by its manual signature as of the
date set forth below.

                                       CABCO SERIES 200_-_ TRUST

                                 By:   THE BANK OF NEW YORK,
                                       not in its individual capacity but
                                       solely as Trustee

                                       By:
                                          -----------------------------------
                                                Authorized Officer or
                                                Authorized Signatory
                                                Name:
                                                Title:

      Dated:
             -----------------

      This is one of the Certificates referred to in the within-mentioned
Series Trust Agreement.

                                 By:   THE BANK OF NEW YORK,
                                       not in its individual capacity but
                                       solely as Authenticating Agent

                                       By:
                                          -----------------------------------
                                                Responsible Officer or
                                                Authorized Signatory of
                                                Trustee
                                                Name:
                                                Title:

      Dated:
             -----------------

                                      C-5
<PAGE>   17
                                                                     EXHIBIT 4.1

                     [FORM OF REVERSE OF TRUST CERTIFICATE]

      The Series Trust Agreement permits the amendment thereof, in certain
circumstances, without the consent of the Certificateholders.

      As provided in the Series Trust Agreement and subject to certain
limitations therein set forth, the transfer of this Certificate is
registerable in the Certificate Register upon surrender of this
Certificate for registration of transfer at the offices or agencies of the
Certificate Registrar maintained by the Trustee in The Borough of
Manhattan, The City of  New York, accompanied by a written instrument of
transfer in form satisfactory to the Trustee and the Certificate Registrar
duly executed by the Certificateholder hereof or such Certificateholder's
attorney duly authorized in writing, and thereupon one or more new
Certificates in authorized denominations of the same Class and a like
aggregate Certificate Principal Balance will be issued to the designated
transferee.  The initial Certificate Registrar appointed under the Series
Trust Agreement is the Trustee.

      This Certificate is issuable only in registered form in the
authorized denominations specified in the Series Trust Agreement.  As
provided in the Series Trust Agreement and subject to certain limitations
therein set forth, at the option of a Certificateholder, Certificates are
exchangeable for new Certificates of authorized denominations of the same
Class and a like aggregate Certificate Principal Balance as requested by
the Certificateholder surrendering the same; provided, however, that no
Certificate may be subdivided such that the denomination of any resulting
Certificate is other than the authorized denominations specified in the
Series Trust Agreement.

      No service charge shall be made for any registration of transfer or
exchange, but the Trustee or the Certificate Registrar may require payment
of a sum sufficient to cover any tax or governmental charge payable in
connection therewith.

      The Depositor, Trustee, Certificate Registrar and any agent of the
Depositor, Trustee or the Certificate Registrar may treat the person in
whose name this Certificate is registered as the owner hereof for all
purposes, and none of the Depositor, Trustee, Certificate Registrar or any
such agent shall be affected by any notice to the contrary.

      The obligations and responsibilities created by the Series Trust
Agreement shall terminate and the Trust created thereby shall dissolve,
wind-up and terminate [in accordance with Section 3808 of the Delaware
Business Trusts Act] and be of no further force or effect 60 days after
the earlier of the (a) final distribution by the Trustee of all moneys or
other property or proceeds of the Trust Assets in accordance with the
terms of the Series Trust Agreement and (b) the distribution by the
Trustee in accordance with the terms of the Series Trust Agreement of the
proceeds of the purchase of all the Trust Assets by the party entitled to
do so.

      Neither the Depositor nor any Certificateholder shall be entitled to
revoke or terminate the Trust.

                                      C-6
<PAGE>   18
                                                                     EXHIBIT 4.1

                                   Schedule 1

[Schedule 1, not repeated here, shall be identical to Exhibits A and B
attached to the Series Trust Agreement]

                                      C-7
<PAGE>   19
                                                                     EXHIBIT 4.1

                                   ASSIGNMENT

            FOR VALUE RECEIVED the undersigned hereby sells, assigns and
transfers unto

PLEASE INSERT SOCIAL SECURITY
OR OTHER IDENTIFYING NUMBER
OF ASSIGNEE

_______________________________________________________________________________
(Please print or typewrite name and address, including postal zip code, of
assignee)

_______________________________________________________________________________
the within Certificate, and all rights thereunder, hereby irrevocably
constituting and appointing

_______________________________________________________________________________
Attorney to transfer said Certificate on the books of the Certificate
Registrar, with full power of substitution in the premises.

Dated:

                           */
         ------------------

                                    Signature Guaranteed:

                           */
         ------------------

-------------

            */ NOTICE: The signature to this assignment must correspond
with the name as it appears upon the face of the within Certificate in
every particular, without alteration, enlargement or any change whatever.
Such signature must be guaranteed by a member of the New York Stock
Exchange or a commercial bank or trust company.

                                      C-8
<PAGE>   20
                                                                       EXHIBIT D
                                                       TO SERIES TRUST AGREEMENT

                          DELAWARE CERTIFICATE OF TRUST

                            CABCO Series 200_-_ Trust

      This Certificate of Trust of CABCO Series 200_-_ Trust (the "Trust"), is
being duly executed and filed by The Bank of New York, Delaware, a Delaware
banking corporation, not in its individual capacity but solely as trustee (the
"Trustee") to form a business trust under Chapter 38 of Title 12 of the Delaware
Code (12 Del. C. Sections 3801 Et seq.).

      1.    Name.  The name of the Trust is CABCO Series 200_-_ Trust.

      2.    Trustee.  The name and business address of the trustee of the
            Trust is:

            The Bank of New York, Delaware

            -----------------------
            Wilmington, Delaware 19801

      IN WITNESS WHEREOF, the authorized officer or authorized signatory
of the undersigned banking corporation has set his hand to this instrument
as of this ___ day of _____200_.

      By: The Bank of New York, Delaware,
          not in its individual capacity but solely as Trustee of CABCO
          Series 200_-_ Trust

          By:
              -------------------------
              Authorized Officer or
              Authorized Signatory
              Name:
              Title:

                                      D-1<PAGE>   1
                                                                     EXHIBIT 4.2

                                                                      SCHEDULE 1
                                                       TO SERIES TRUST AGREEMENT

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

                                  CERTIFICATES
           STANDARD TERMS AND PROVISIONS OF TRUST AGREEMENT (NEW YORK)

                                     between

                       CORPORATE ASSET BACKED CORPORATION,
                                  as Depositor

                                       and

         The Trustee specified in the applicable Series Trust Agreement,
                                   as Trustee

                                       and

    The Delaware Trustee specified in the applicable Series Trust Agreement,
                               as Delaware Trustee

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

          Relating to Trust Certificates of the series specified in the
                             Series Trust Agreement
<PAGE>   2
                                                                     EXHIBIT 4.2

        ----------------------------------------------------------------
         RECONCILIATION AND TIE BETWEEN TRUST INDENTURE ACT OF 1939 AND
                              AGREEMENT PROVISIONS*

<TABLE>
<CAPTION>
Trust Indenture
---------------
    Act Section                                                                             Agreement Section
    -----------                                                                             -----------------
<S>                                                                                    <C>
      310(a)(1)   ..................................................................                  7.14(a)
         (a)(2)   ..................................................................                  7.14(a)
         (a)(3)   ..................................................................                     7.13
         (a)(4)   ..................................................................                   7.1(f)
         (a)(5)   ..................................................................                  7.14(a)
            (b)   ..................................................................                  7.14(b)
            (c)   ..................................................................           Not Applicable

         311(a)   ..................................................................                      7.4
            (b)   ..................................................................                      7.4
            (c)   ..................................................................           Not Applicable

         312(a)   ..................................................................           3.7(a), 3.8(a)
            (b)   ..................................................................                   3.8(b)
            (c)   ..................................................................                   3.8(c)

         313(a)   ..................................................................                      7.6
            (b)   ..................................................................                      7.6
            (c)   ..................................................................                      7.6
            (d)   ..................................................................                      7.6

         314(a)   ..................................................................           4.1(a), 4.1(b)
            (b)   ..................................................................           4.1(c), 4.1(d)
         (c)(1)   ..................................................................                   4.1(f)
         (c)(2)   ..................................................................                   4.1(f)
         (c)(3)   ..................................................................                   4.1(f)
         (d)(1)   ..................................................................                   4.1(e)
         (d)(2)   ..................................................................                   4.1(e)
         (d)(3)   ..................................................................           Not Applicable
            (e)   ..................................................................                   4.1(f)

         315(a)   ..................................................................   7.1(a), 7.1(b), 7.1(c)
            (b)   ..................................................................                   7.1(g)
            (c)   ..................................................................                   7.1(a)
            (d)   ..................................................................                   7.1(c)
         (d)(1)   ..................................................................                7.1(c)(i)
         (d)(2)   ..................................................................               7.1(c)(ii)
         (d)(3)   ..................................................................              7.1(c)(iii)
            (e)   ..................................................................                   7.1(i)

      316(a)(1)   ..................................................................                   7.5(a)
</TABLE>

----------
* This reconciliation and tie shall not, for any purpose, be deemed to be part
  of the within agreement.
<PAGE>   3
                                                                     EXHIBIT 4.2

<TABLE>
<S>                                                                                            <C>
      316(a)(2)   ..................................................................           Not Applicable
         316(b)   ..................................................................                   6.2(h)
         316(c)   ..................................................................                   3.7(b)

         317(a)   ..................................................................                   7.1(h)
         317(b)   ..................................................................                      6.3

         318(a)   ..................................................................                    10.11
</TABLE>
<PAGE>   4
                                                                     EXHIBIT 4.2

<TABLE>
<S>                                                                                                       <C>
                                    ARTICLE I
                   DEFINITIONS AND INCORPORATION BY REFERENCE

SECTION 1.1  Definitions...............................................................................   1
SECTION 1.2  Other Definitional Provisions.............................................................   7
SECTION 1.3  Incorporation by Reference of Trust Indenture Act.........................................   7

                                   ARTICLE II
                                  ORGANIZATION

SECTION 2.1  Business of Trust.........................................................................   7
SECTION 2.2  Office....................................................................................   8
SECTION 2.3  Purposes and Powers.......................................................................   8
SECTION 2.4  Appointment of Trustee....................................................................   8
SECTION 2.5  Declaration of Trust......................................................................   9
SECTION 2.6  Liability of Certificateholders...........................................................   9
SECTION 2.7  Title to Trust Property...................................................................   9
SECTION 2.8  Situs of Trust............................................................................   9
SECTION 2.9  Representations and Warranties of Depositor...............................................   9
SECTION 2.10  Tax Treatment............................................................................   10

                                   ARTICLE III
                                THE CERTIFICATES

SECTION 3.1  Form of the Certificates..................................................................   10
SECTION 3.2  Execution; Authentication and Delivery....................................................   10
SECTION 3.3  Registration; Registration of Transfer and Exchange of Certificates.......................   11
SECTION 3.4  Calculation of Interest; Stripped Certificates............................................   12
SECTION 3.5  Mutilated, Destroyed, Lost or Stolen Certificates.........................................   12
SECTION 3.6  Persons Deemed Certificateholders.........................................................   13
SECTION 3.7  Access to List of Certificateholders' Names and Addresses.................................   13
SECTION 3.8  Preservation of Information; Communications to Certificateholders.........................   14
SECTION 3.9  Book-Entry Certificates...................................................................   14
SECTION 3.10  Legend on Global Certificates............................................................   15
SECTION 3.11  Definitive Certificates..................................................................   15
SECTION 3.12  Depositor as Certificateholder...........................................................   15
SECTION 3.13  Transfer Restrictions....................................................................   15
SECTION 3.14  Deemed ERISA Plan Representation.........................................................   16
SECTION 3.15  Actions by Certificateholders............................................................   16

                                   ARTICLE IV
                                  THE DEPOSITOR

SECTION 4.1  Obligations of the Depositor..............................................................   17

                                    ARTICLE V
                               ACTIONS BY TRUSTEE

SECTION 5.1  Prior Notice to Certificateholders with Respect to Certain Matters........................   20
SECTION 5.2  Action by Trustee with Respect to Certain Matters.........................................   21
SECTION 5.3  Majority Control..........................................................................   21
</TABLE>

                                      D-i
<PAGE>   5
                                                                     EXHIBIT 4.2

<TABLE>
<S>                                                                                                       <C>
                                   ARTICLE VI
                   APPLICATION OF TRUST FUNDS; CERTAIN DUTIES

SECTION 6.1  Establishment of Collection Account.......................................................   21
SECTION 6.2  Application of Trust Funds................................................................   22
SECTION 6.3  Appointment of Paying Agent...............................................................   23
SECTION 6.4  Method of Payment.........................................................................   24
SECTION 6.5  Reports to Certificateholders.............................................................   24
SECTION 6.6  Accounting and Information to Certificateholders, Internal Revenue Service and Others.....   25
SECTION 6.7  Signature on Returns......................................................................   25

                                   ARTICLE VII
                                   THE TRUSTEE

SECTION 7.1  Duties of Trustee; Notice of Defaults.....................................................   25
SECTION 7.2  Rights of Trustee.........................................................................   27
SECTION 7.3  Acceptance of Trusts and Duties...........................................................   27
SECTION 7.4  Preferential Collection of Claims Against Trustee.........................................   29
SECTION 7.5  Action upon Instruction by Certificateholders.............................................   29
SECTION 7.6  Furnishing of Documents; Reports to Certificateholders and DTC............................   29
SECTION 7.7  Representations and Warranties of Trustee.................................................   30
SECTION 7.8  Reliance; Advice of Counsel...............................................................   31
SECTION 7.9  Trustee May Own Certificates..............................................................   31
SECTION 7.10  Compensation and Indemnity...............................................................   31
SECTION 7.11  Replacement of Trustee...................................................................   32
SECTION 7.12  Merger or Consolidation of Trustee.......................................................   33
SECTION 7.13  Appointment of Co-Trustee or Separate Trustee............................................   33
SECTION 7.14  Eligibility Requirements for Trustee.....................................................   34
SECTION 7.15  Voting of the Underlying Securities......................................................   34
SECTION 7.16  Annual Statement.........................................................................   36

                                  ARTICLE VIII
                            TERMINATION OF AGREEMENT

SECTION 8.1  Termination of Agreement..................................................................   36
SECTION 8.2  Liquidation of Trust Assets Upon Certain Events...........................................   37

                                   ARTICLE IX
                                   AMENDMENTS

SECTION 9.1  Amendments Without Consent of Certificateholders..........................................   38
SECTION 9.2  Amendments With Consent of Certificateholders; Waivers....................................   38
SECTION 9.3  Form of Amendments........................................................................   39

                                    ARTICLE X
                                  MISCELLANEOUS

SECTION 10.1  Certificateholders Have No Legal Title to Trust Property.................................   39
SECTION 10.2  Limitations on Rights of Others..........................................................   39
SECTION 10.3  Notices..................................................................................   39
SECTION 10.4  Severability.............................................................................   40
</TABLE>

                                       ii
<PAGE>   6
                                                                     EXHIBIT 4.2

<TABLE>
<S>                                                                                                       <C>
SECTION 10.5  Counterparts.............................................................................   40
SECTION 10.6  Successors and Assigns...................................................................   40
SECTION 10.7  No Petition Covenant.....................................................................   40
SECTION 10.8  No Recourse..............................................................................   40
SECTION 10.9  Headings.................................................................................   40
SECTION 10.10  Governing Law...........................................................................   41
SECTION 10.11  Conflict with Trust Indenture Act.......................................................   41
</TABLE>

                                      iii
<PAGE>   7
                                                                     EXHIBIT 4.2

                  STANDARD TERMS AND PROVISIONS OF TRUST AGREEMENT

                  This document constitutes Standard Terms and Provisions of
Trust Agreement (these "Standard Terms") which are to be incorporated by
reference in, and attached as a Schedule to, one or more Series Trust Agreements
by and between Corporate Asset Backed Corporation, as Depositor, and the Trustee
specified in the applicable Series Trust Agreement, as Trustee.

                  These Standard Terms shall be of no force and effect unless
and until incorporated by reference into the Forepart of a particular Series
Trust Agreement (each as defined herein).

                  The particular Series Trust Agreement into which these
Standard Terms have been incorporated establishes a trust under the laws of the
State of New York to hold the Underlying Securities specified in the Forepart
and any other Trust Assets specified in the Forepart and provides for the
creation, execution and delivery of trust certificates (the "Certificates") of
one or more classes and, in connection therewith, the execution, delivery and
performance of a swap agreement (the "Swap Agreement") with the swap
counterparty specified in the Forepart and any Related Agreements specified in
the Forepart, and, if so specified in the Forepart, the execution, granting or
arrangement of one or more Credit Enhancement Agreements.

                  The following terms and provisions shall govern the
Certificates and the Trust subject to contrary terms and provisions expressly
set forth in the Forepart of the Series Trust Agreement, which contrary terms
and provisions shall control; provided, that no such term or provisions of the
Forepart may limit, qualify or conflict with Section 10.11 hereof.

                                    ARTICLE I
                   DEFINITIONS AND INCORPORATION BY REFERENCE

                  SECTION 1.1 Definitions. Except as otherwise specified herein
or as the context may otherwise require, the following terms have the respective
meanings set forth below for all purposes of the Series Trust Agreement and
these Standard Terms.

                  "Affiliate" means, with respect to any specified Person, any
other Person controlling or controlled by or under common control with such
specified Person. For the 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 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 Signatory" means, in relation to the Trustee, any
Person authorized from time to time to execute documents or agreements,
authenticate Certificates or otherwise act for and on behalf of the Trustee from
time to time, and who is identified on the list of Authorized Signatories
delivered by the Trustee to the Depositor on the Closing Date (as such list may
be modified or supplemented from time to time thereafter).

                  "Available Information Event" means that any Underlying
Securities Issuer evidencing more than 10% of the aggregate principal amount of
the Underlying Securities has suspended its Exchange Act reporting requirements
at a time when the Exchange Act reporting requirements with respect to the
Certificates have not been suspended or terminated.

                  "Basic Documents" means the Series Trust Agreement, the Swap
Agreement, each Related Agreement, and each Credit Enhancement Agreement.
<PAGE>   8
                                                                     EXHIBIT 4.2

                  "Benefit Plan" means (a) an employee benefit plan (as defined
in Section 3(3) of ERISA) that is subject to the provisions of Title I of ERISA,
(b) a plan described in Section 4975(e)(1) of the Code (other than a
governmental or church plan described in Section 4975(g)(2) or (3) of the Code),
(c) a governmental or church plan that is subject to any federal, state or local
law that is, to a material extent, similar to the prohibited transaction
provisions of ERISA or Section 4975 of the Code, or (d) any entity whose
underlying assets include plan assets by reason of a plan's investment in the
entity (excluding any investment company that is registered under the Investment
Company Act).

                  "Book-Entry Certificates" means a beneficial interest in a
global Certificate held by Cede & Co., ownership and transfers of which shall be
made through book entries by DTC as described in Section 3.9.

                  "Business Day" has the meaning set forth in the Forepart.

                  "Calculation Agent" means the Person identified as such in the
Swap Agreement.

                  "Certificate" means one of the global certificates issued by
the Trust, substantially in the form of Exhibit C to the Series Trust Agreement.

                  "Certificate Owner" means, with respect to a Book-Entry
Certificate, the Person who is the beneficial owner of such Book-Entry
Certificate, as reflected on the books of DTC, or on the books of a Person
maintaining an account with DTC (directly as a DTC Participant or as an indirect
participant, in each case in accordance with the rules of DTC).

                  "Certificate Principal Balance" means, initially, with respect
to each Class, that amount identified as the initial certificate principal
balance (or notional amount) with respect to such Class in the Forepart, and,
thereafter, such initial balance or amount as reduced by all amounts allocable
to principal previously distributed to Certificateholders holding Certificates
of that Class.

                  "Certificate Register" and "Certificate Registrar" have the
respective meanings specified in Section 3.3.

                  "Certificateholder" means each Person in whose name a
Certificate is registered on the Certificate Register.

                  "Class" means Certificates having the same terms and
conditions and the same relative rights and interests, as specified in the
Forepart.

                  "Closing Date" means the date set forth as such in the
Forepart.

                  "Code" means the Internal Revenue Code of 1986, as amended.

                  "Collection Account" means the collection account established
pursuant to Section 6.1.

                  "Commission" means the Securities and Exchange Commission.

                  "Corporate Trust Office" means the principal office of the
Trustee at which at any particular time its corporate trust business shall be
administered, which office is located at the address specified in the Forepart;
or such other office as the Trustee may designate from time to time by notice to
the Certificateholders and each Rating Agency, or the principal corporate trust
office of any successor

                                     - 2 -
<PAGE>   9
                                                                     EXHIBIT 4.2

Trustee (in which case, the successor Trustee will notify the Certificateholders
and each Rating Agency of the address of such office).

                  "Credit Enhancement Agreement" means any guarantee, insurance
policy, collateral arrangement or other forms of credit enhancement specified as
a Credit Enhancement Agreement in the Forepart.

                  "Definitive Certificates" has the meaning specified in Section
3.11.

                  "Depositor" means Corporate Asset Backed Corporation, a
Delaware corporation, and any permitted successor or assignee.

                  "Distribution Date" means each of the dates set forth in
Exhibit B to the Forepart, including without limitation any Maturity Date or
Termination Date, upon which payments in respect of the Certificates shall be
due and payable.

                  "DTC" means The Depository Trust Company, any successor, and
any substitute clearing agency which replaces DTC.

                  "DTC Participant" means a broker, dealer, bank, other
financial institution or other Person for whom from time to time DTC effects
book-entry transfers and pledges of securities deposited with DTC.

                  "Eligible Trust Account" means a segregated account with the
corporate trust department of the Trustee, which is identified and held separate
and apart from the general assets of the Trustee, and which contains only
property held by the Trustee as fiduciary, of a trust company or corporation
with trust powers organized under the laws of the United States of America or
any one of the states thereof or the District of Columbia (or any domestic
branch of a foreign bank), having corporate trust powers and acting as trustee
for funds deposited in such account, so long as any of the securities of such
depository institution shall have a credit rating from each Rating Agency in one
of its generic rating categories which signifies investment grade or such higher
rating as may be specified in the Forepart.

                  "ERISA" means the Employee Retirement Income Security Act of
1974, as amended.

                  "Event of Default" means any Event of Default specified as
such in the Forepart.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
amended.

                  "Executive Officer" means, with respect to any corporation,
the Chief Executive Officer, Chief Operating Officer, Chief Financial Officer,
President, any Vice President, the Secretary or the Treasurer of such
corporation and, with respect to any partnership, any general partner thereof.

                  "Forepart" means the forepart of the Series Trust Agreement
into which these Standard Terms are incorporated by reference, consisting of the
provisions actually set forth in the pages of the Series Trust Agreement
preceding and including its signature page, together with all exhibits thereto
except these Standard Terms.

                  "Independent" means, when used with respect to any specified
Person, that the Person specifies he or she (a) is in fact independent of the
Depositor and of any of its Affiliates, (b) does not have any direct or indirect
financial interest in the Depositor or in any of its Affiliates which is
material with

                                     - 3 -
<PAGE>   10
                                                                     EXHIBIT 4.2

respect to such Person and (c) is not connected with the Depositor as an
officer, employee, promoter, underwriter, trustee, partner, director or person
performing similar functions.

                  "Independent Certificate" means a certificate of an
Independent engineer, appraiser or other expert, as required by the TIA.

                  "Investment Company Act" means the Investment Company Act of
1940, as amended.

                  "Letter of Representation" means the letter of representations
from the Trustee and the Depositor in the form customarily provided to DTC,
dated the Closing Date.

                  "Maturity Date" means the Maturity Date specified as such in
Exhibit B to the Forepart.

                  "Moody's" means Moody's Investors Service, Inc., and any
successor thereto.

                  "1933 Act" means the Securities Act of 1933, as amended.

                  "Obligations Payment Date" means each date upon which payments
in respect of any Swap Agreement, Related Agreement or Credit Enhancement
Agreement are due and payable, exclusive of the Closing Date.

                  "Officer's Certificate" means a certificate signed by any one
(or, if specified in the Series Trust Agreement, more than one) Executive
Officer of the Depositor or, in the case of the Trustee, a Responsible Officer
or Authorized Signatory.

                  "Opinion of Counsel" means one or more written opinions of
counsel who may be employees of or counsel to the Depositor or an Affiliate and
who shall be satisfactory to the Trustee, and which opinion or opinions shall be
addressed to the Trustee as Trustee and shall be in form and substance
reasonably satisfactory to the Trustee.

                  "Outstanding" means, as of any date of determination, all
Certificates theretofore authenticated and delivered under the Series Trust
Agreement except:

                  (a) Certificates previously cancelled by the Certificate
Registrar or delivered to the Certificate Registrar for cancellation;

                  (b) Certificates or portions thereof the payment for which
money in the necessary amount has been theretofore irrevocably deposited with
the Trustee in trust for the Certificateholders of such Certificates; and

                  (c) Certificates in exchange for or in lieu of which other
Certificates have been authenticated and delivered pursuant to the Series Trust
Agreement unless proof satisfactory to the Trustee is presented that any such
Certificates are held by a protected purchaser;

                  provided that in determining whether the Certificateholders
have given any request, demand, authorization, direction, notice, consent or
waiver hereunder, Certificates owned by or pledged to the Depositor, the Trustee
in its individual capacity, the Swap Counterparty (or any credit support
provider thereto), the counterparties to any Related Agreement or Credit
Enhancement Agreement, or any Affiliate of any of the foregoing Persons shall be
disregarded and for purposes of determining the requisite Certificate Principal
Balance of Certificates shall be deemed not to be Outstanding, except that, in
determining whether the Trustee shall be protected in relying upon any such
request, demand,

                                     - 4 -
<PAGE>   11
                                                                     EXHIBIT 4.2

authorization, direction, notice, consent or waiver, only Certificates that the
Trustee knows to be so owned shall be so disregarded.

                  "Paying Agent" has the meaning specified in Section 6.3.

                  "Person" means any individual, corporation, estate,
partnership, joint venture, association, joint stock company, limited liability
company, trust (including any trust beneficiary), unincorporated organization or
government or any agency or political subdivision thereof.

                  "Proceeding" means any suit in equity, action at law or other
judicial or administrative proceeding.

                  "Rating Agency" means each nationally recognized statistical
rating organization identified in the Forepart. If more than one nationally
recognized statistical rating organization is identified in the Forepart, any
reference herein to "the Rating Agency" shall be deemed to include each such
nationally recognized statistical rating organization. If any such organization
or successor is no longer in existence, then such "Rating Agency" shall be a
United States nationally recognized statistical rating organization or other
comparable Person designated by the Depositor, notice of which designation shall
be given to the Trustee.

                  "Rating Agency Condition" means, (a) with respect to any
specified action, that each Rating Agency shall have been given 10 days prior
notice thereof and that such Rating Agency shall have notified the Trustee in
writing that such action will not result in a reduction or withdrawal of the
then current rating of the Certificates, and (b) if so specified in the
Forepart, in the case of the extension of the maturity of any Certificates, that
each Rating Agency shall have been given 10 days prior notice of the election of
all or a portion of the Certificateholders to extend the maturity of their
Certificates, and that the Rating Agency shall have notified the Trustee in
writing that the Certificates, upon the extension of their maturity, will
continue to be assigned a rating at least as high as the then current rating of
the Certificates prior to the extension of their maturity.

                  "Record Date" shall have the meaning specified in Exhibit B to
the Forepart.

                  "Related Agreements" means any agreement or arrangement
specified as such in the Forepart.

                  "Required Percentage - Amendments" means the percentage of the
aggregate Voting Rights of all the Classes of Certificates specified in the
Forepart.

                  "Required Percentage - Remedies" means the percentage of the
aggregate Voting Rights of all the Classes of Certificates specified in the
Forepart.

                  "Required Percentage - Waiver" means the percentage of the
aggregate Voting Rights of all the Classes of Certificates specified in the
Forepart.

                  "Responsible Officer" means, with respect to the Trustee, any
officer within the Corporate Trust Office of the Trustee, including any Senior
Vice President, Vice President, Assistant Vice President, Secretary, Assistant
Secretary, or any other officer of the Trustee customarily performing functions
similar to those performed by any of the above designated officers and also,
with respect to a particular matter, any other officer to whom such matter is
referred because of such officer's knowledge of and familiarity with the
particular subject, or, if and for so long as the United States Trust Company of

                                     - 5 -
<PAGE>   12
                                                                     EXHIBIT 4.2

New York acts as agent of the Owner Trustee, any officer holding an equivalent
position within the United States Trust Company of New York.

                  "Series Trust Agreement" means the particular Series Trust
Agreement into which these Standard Terms have been incorporated, consisting of
a fully executed Forepart and these Standard Terms.

                  "Standard & Poor's" means Standard & Poor's Ratings Services,
and any successor thereto.

                  "Standard Terms" or "these Standard Terms" means this Exhibit,
the Standard Terms and Provisions of Trust Agreement between Corporate Asset
Backed Corporation, as Depositor, and the Trustee.

                  "Stripped Certificates", if applicable, means Certificates of
any Class that are entitled to (a) principal distributions, with
disproportionate, nominal or no interest distributions, or (b) interest
distributions, with disproportionate, nominal or no principal distributions.

                  "Swap Agreement" means the swap agreement dated the Closing
Date (including the schedule and confirmations relating thereto) between the
Trust and the Swap Counterparty, as the same may be amended and supplemented
from time to time.

                  "Swap Counterparty" means the Swap Counterparty identified in
the Forepart and any permitted successor or assignee.

                  "Termination Date" means the Termination Date specified as
such in Exhibit B to the Forepart.

                  "TIA" means the Trust Indenture Act of 1939, as amended.

                  "Treasury Regulations" means regulations, including proposed
or temporary regulations, promulgated under the Code. References herein to
specific provisions of proposed or temporary regulations shall include analogous
provisions of final Treasury Regulations or other successor Treasury
Regulations.

                  "Trust" means the trust created pursuant to the Series Trust
Agreement.

                  "Trust Assets" means the Underlying Securities, any other
Trust Assets specified in Exhibit A to the Forepart, any other assets related or
incidental thereto or necessary to provide the Certificates with their desired
economic terms, including rights under any hedging contracts or other derivative
agreements, and any assets obtained through foreclosure or settlement and any
other assets of the Trust from time to time.

                  "Trust Liquidation Event" means the occurrence of (a) an Event
of Default, Termination Event or Additional Termination Event under the Swap
Agreement or a similar event under any Related Agreement or any Credit
Enhancement Agreement and (b) any other event specified in the Forepart as an
Event of Default under the Series Trust Agreement.

                  "Trustee" means the Trustee specified in the Series Trust
Agreement and any successor qualifying under Section 7.14.

                                     - 6 -
<PAGE>   13
                                                                     EXHIBIT 4.2

                  "Underlying Securities" means the securities described in
Exhibit A to the Forepart.

                  "Underlying Securities Issuer" means the issuer of the
Underlying Securities, or, if there is more than one such issuer, each such
issuer.

                  "Underwriters" means one or both of UBS Warburg LLC and UBS
PaineWebber Inc., as indicated in the Forepart, and any other Person designated
as such in the Forepart.

                  "U.S. Person" has the meaning ascribed thereto in Regulation S
promulgated under the 1933 Act.

                  "Voting Rights" means the voting rights attaching to each
Class of Certificates, as specified in the Forepart.

                  SECTION 1.2 Other Definitional Provisions. Capitalized terms
used in the Series Trust Agreement and not otherwise defined herein shall have
the respective meanings assigned them in the Swap Agreement. All references in
this Trust Agreement to Articles, Sections, subsections, Schedules and Exhibits
are to Articles, Sections, subsections, Schedules and Exhibits of these
Standards Terms unless otherwise specified. All terms defined in the Series
Trust Agreement shall have the defined meanings when used in any certificate,
notice, Certificate or other document made or delivered pursuant hereto, unless
otherwise defined therein. Whenever used in this Agreement, except as otherwise
expressly provided or unless the context otherwise requires, any noun or pronoun
shall be deemed to include the plural as well as the singular and to cover both
genders.

                  SECTION 1.3 Incorporation by Reference of Trust Indenture Act.
Whenever the Series Trust Agreement refers to a provision of the TIA, such
provision is incorporated by reference in and made a part of the Series Trust
Agreement. The following TIA terms used in the Series Trust Agreement have the
following meanings:

                  "indenture securities" means the Certificates.

                  "obligor" on the Certificates means the Trustee on behalf of
the Trust and, to the extent specified in the Series Trust Agreement, the
Depositor.

                  All other TIA terms used in the Series Trust Agreement that
are defined by the TIA, defined by TIA reference to another statute or defined
by a Commission rule have the respective meanings assigned to them by such
definitions.

                                   ARTICLE II
                                  ORGANIZATION

                  SECTION 2.1 Business of Trust.

                  (a) The Trustee may conduct the business of the Trust, make
and execute contracts and other instruments on behalf of the Trust and sue and
be sued on behalf of the Trust or in the name of the Trust, subject to the terms
of the Series Trust Agreement. In order to effectuate the purpose of the Trust,
on the Closing Date the Trustee shall, on behalf of the Trust, (i) acquire from
the Depositor (or such other Person as may be specified in the Forepart) the
Underlying Securities and other Trust Assets specified in the Forepart for the
benefit of the Certificateholders; (ii) issue the Certificates; (iii) with the
proceeds of the sale of the Certificates pay the Depositor (or other Person) the
purchase price of the Underlying Securities and other Trust Assets; (iv) enter
into the Swap Agreement and any Related

                                     - 7 -
<PAGE>   14
                                                                     EXHIBIT 4.2

Agreement; (v) execute any Credit Enhancement Agreement; and (vi) enter into
such other agreements, execute such other documents and take such other actions
as the Depositor may direct in conjunction with the issuance of the
Certificates, on the Closing Date.

                  SECTION 2.2 Office. The office of the Trust shall be in care
of the Trustee at the Corporate Trust Office, or at such other address as the
Trustee may designate by written notice to the Certificateholders and the
Depositor. All Certificates shall be capable of being surrendered for
registration of transfer or exchange at the Corporate Trust Office and all
notices and demands to or upon the Trustee in respect of the Certificates and
the Basic Documents may be served on the Trustee at the Corporate Trust Office.
The Trustee shall give prompt written notice to the Depositor and to the
Certificateholders of any change in the location of the Certificate Register or
any such office or agency.

                  SECTION 2.3 Purposes and Powers. The purpose of the Trust is
to engage in the following activities:

                  (a) to acquire from the Depositor (or such other Person as may
be specified in the Forepart) the Underlying Securities and other Trust Assets;

                  (b) to issue the Certificates pursuant to the Series Trust
Agreement;

                  (c) with the proceeds of the sale of the Certificates, to pay
the Depositor (or such other Person as may be specified in the Forepart) the
purchase price of, and thereafter to hold, the Underlying Securities and other
Trust Assets;

                  (d) to enter into and perform its obligations under the Swap
Agreement, any Related Agreement and any Credit Enhancement Agreement;

                  (e) to distribute to the Certificateholders as provided in
Sections 6.2 and 8.2 hereof amounts, if any, received by the Trust on, or in
respect of, the Underlying Securities and other Trust Assets, the Swap
Agreement, any Related Agreement, and any Credit Enhancement Agreement; and

                  (f) to engage in those limited activities, upon appropriate
direction of the Depositor including entering into agreements that are
necessary, suitable or convenient to accomplish the foregoing or are incidental
thereto or connected therewith, provided that they are not inconsistent with the
classification of the Trust as a grantor trust or, if specified in the Forepart,
as a partnership, or otherwise, for federal income tax purposes.

                  The Trust is hereby authorized to engage in the foregoing
activities. The Trust shall not engage in any activity other than in connection
with the foregoing or other than as required or authorized by the terms of the
Series Trust Agreement or the other Basic Documents. In particular, after the
Closing Date, and subject to Sections 5.2 and 5.3 below, the Trust shall not
modify (or agree to the modification of), or purchase or otherwise acquire any
additional assets except as provided by any Basic Document or any Trust Asset,
and shall not modify (or agree to the modification of), its rights under the
Swap Agreement, any Related Agreement or any Credit Enhancement Agreement, other
than upon termination of the Trust. The Trust shall not take any action that
would cause it to fail to be classified as a grantor trust or, if specified in
the Forepart, as a partnership, or otherwise, as may be specified in the
Forepart for federal income tax purposes.

                  SECTION 2.4 Appointment of Trustee. The Depositor hereby
appoints the Trustee as trustee of the Trust effective as of the date hereof, to
have all the rights, powers and duties set forth herein.

                                     - 8 -
<PAGE>   15
                                                                     EXHIBIT 4.2

                  SECTION 2.5 Declaration of Trust. The Trustee hereby declares
that it shall hold the Trust Assets in trust upon and subject to the conditions
set forth in the Series Trust Agreement for the use and benefit of the
Certificateholders, subject to the obligations of the Trust under the Swap
Agreement, any Related Agreement and any Credit Enhancement Agreement. The
Underlying Securities and other Trust Assets shall be held in a segregated
account of the Trustee which is identified and held separate and apart from the
general assets of the Trustee and which contains only property held by the
Trustee as fiduciary. Effective as of the date of the Series Trust Agreement,
the Trustee shall have all rights, powers and duties set forth in the Series
Trust Agreement with respect to accomplishing the purposes of the Trust.

                  SECTION 2.6 Liability of Certificateholders. No
Certificateholder shall have any personal liability for any liability or
obligation of the Trust.

                  SECTION 2.7 Title to Trust Property. Legal title to all the
Trust Assets shall be vested at all times in the Trust as a separate legal
entity except where applicable law in any jurisdiction requires title to any
part of the Trust Assets to be vested in a trustee or trustees, in which case
title shall be deemed to be vested in the Trustee, a co-trustee and/or a
separate trustee, as the case may be.

                  SECTION 2.8 Situs of Trust. The Trust shall be located and
administered in the State of New York. All bank accounts maintained by the
Trustee on behalf of the Trust shall be located in and governed by the laws of
the State of New York. The Trust shall not be deemed to have any employees in
any state other than New York; provided, however, that nothing herein shall
restrict or prohibit the Trustee from having employees within or without the
State of New York. Payments shall be received by the Trust only in New York, and
payments will be made by the Trust only from New York. The principal office of
the Trust shall be the Corporate Trust Office in New York.

                  SECTION 2.9 Representations and Warranties of Depositor. The
Depositor hereby represents and warrants to the Trustee that:

                  (a) The Depositor has been duly organized and is validly
existing as a corporation in good standing under the laws of the State of
Delaware, with power and authority to own its properties and to conduct its
business as such properties are presently owned and such business is presently
conducted.

                  (b) The Depositor has obtained all necessary licenses and
approvals in all jurisdictions in which its ownership or lease of property or
the conduct of its business requires such qualification, except where failure to
obtain such qualification would have no material adverse effect on the
Depositor's ability to perform its obligations hereunder.

                  (c) The Depositor has the power and authority to execute and
deliver the Series Trust Agreement and to carry out its terms; and the
execution, delivery and performance of the Series Trust Agreement have been duly
authorized by the Depositor by all necessary corporate action.

                  (d) The consummation of the transactions contemplated by the
Series Trust Agreement and other Basic Documents to which the Depositor is a
party and the fulfillment of the terms of the Series Trust Agreement and other
Basic Documents to which the Depositor is a party do not conflict with, result
in any breach of any of the terms and provisions of or constitute (with or
without notice or lapse of time) a default under, the certificate of
incorporation or by-laws of the Depositor, or any indenture, trust agreement or
agreement or other instrument to which the Depositor is a party or by which it
is bound, or result in the creation or imposition of any lien upon any of its
properties pursuant to the terms of any such indenture or trust agreement, other
agreement or other instrument (other than pursuant to the Basic Documents), or
violate any law or, to the best of the Depositor's knowledge, any order, rule or
regulation applicable to the Depositor of any court or of any federal or state
regulatory body,

                                     - 9 -
<PAGE>   16
                                                                     EXHIBIT 4.2

administrative agency or other governmental instrumentality having jurisdiction
over the Depositor or any of its properties.

                  SECTION 2.10 Tax Treatment. Unless otherwise specified in the
Forepart, the Depositor and the Trustee, by entering into the Series Trust
Agreement, and each Certificateholder and Certificate Owner, by acquiring a
Certificate or Book-Entry Certificate or interest therein, (a) express their
intention that the Trust will be classified as a "grantor trust" under Subpart
E, Part I of Subchapter J of the Code and corresponding provisions of applicable
state and local tax laws and not an association taxable as a corporation for
federal income tax purposes, and (b) unless otherwise required by appropriate
taxing authorities, agree to treat the Certificates or Book-Entry Certificates
as representing undivided beneficial ownership interests in the assets of the
Trust, subject to the liabilities of the Trust, for the purposes of federal
income taxes, state and local income and franchise taxes and any other taxes
imposed upon, measured by, or based upon gross or net income. Further, the
provisions of the Series Trust Agreement shall be interpreted to further this
intention of the parties.

                                   ARTICLE III
                                THE CERTIFICATES

                  SECTION 3.1 Form of the Certificates.

                  (a) The Certificates shall be issued in one or more global
certificates in fully registered book-entry form, in the name of a nominee of
DTC, as described in Section 3.9, substantially in the form set forth in Exhibit
C to the Series Trust Agreement and shall be issued in the Class or Classes and
in the authorized denominations set forth in the Forepart. The Certificates
shall be executed on behalf of the Trust by manual or facsimile signature of an
authorized officer or Authorized Signatory of the Trustee, pursuant to a written
order signed by the Depositor, and authenticated by a Responsible Officer or
Authorized Signatory of the Trustee. Certificates bearing the manual or
facsimile signatures of individuals who were, at the time when such signatures
shall have been affixed, authorized to execute or authenticate Certificates on
behalf of the Trust, shall be valid and binding obligations of the Trust,
notwithstanding that such individuals or any of them shall have ceased to be so
authorized prior to the authentication and delivery of such Certificates or did
not hold such offices at the date of authentication and delivery of such
Certificates. Each Certificate shall bear upon its face the designation so
selected for the Class and Series to which it belongs, and may have such
letters, numbers or other marks of identification. All Certificates of the same
Class shall be identical in all respects except for the denominations thereof.
All Certificates of all Classes at any time Outstanding shall be identical
except for differences among the Certificates of the different Classes specified
in the Forepart. Except as provided in subsection (b) below, all Certificates
(and all Classes) issued under the Series Trust Agreement shall be in all
respects equally and ratably entitled to the benefits hereof without preference,
priority or distinction on account of the actual time or times of authentication
and delivery, all in accordance with the terms and provisions of the Series
Trust Agreement.

                  (b) If so specified in the Forepart, the rights of the
Certificateholders holding Certificates of one Class may be senior or
subordinated to the rights of the Certificateholders holding any one or more
other Classes, all as specified in the Forepart.

                  (c) The terms of the Form of Certificate set forth in Exhibit
C to the Series Trust Agreement shall form part of the Series Trust Agreement.

                  SECTION 3.2 Execution, Authentication and Delivery.
Concurrently with the sale of the Underlying Securities and other Trust Assets
to the Trust, the Trustee, upon written order of the Depositor, shall cause to
be executed by an Authorized Signatory of the Trustee, and shall cause to be

                                     - 10 -
<PAGE>   17
                                                                     EXHIBIT 4.2

authenticated and delivered by a Responsible Officer or Authorized Signatory of
the Trustee, the Certificates of each Class specified in the Forepart in an
aggregate certificate principal balance equal to the initial Certificate
Principal Balance of that Class, without further corporate action by the
Depositor, in the authorized denominations specified in the Forepart. No
Certificate shall entitle its holder to any benefit under the Series Trust
Agreement, or shall be valid for any purpose, unless there shall appear on such
Certificate a certificate of authentication substantially in the form set forth
in Exhibit C contained in the Forepart, executed by the Trustee by manual
signature. Such authentication shall constitute conclusive evidence that such
Certificate shall have been duly authenticated and delivered hereunder. All
Certificates shall be dated the date of their authentication.

                  SECTION 3.3 Registration, Registration of Transfer and
Exchange of Certificates.

                  (a) The Certificate Registrar (as defined below) shall keep or
cause to be kept, at the office or agency maintained pursuant to Section 2.2, a
Certificate register (the "Certificate Register") in which, subject to such
reasonable regulations as it may prescribe, the Trustee (in such capacity, the
"Certificate Registrar") shall provide for the registration of Certificates and
of transfers and exchanges of Certificates as provided herein; provided,
however, that no Certificate may be subdivided upon transfer or exchange such
that the denomination of any resulting Certificate is other than the authorized
denominations specified in the Forepart. Unless otherwise specified in the
Forepart, the initial Certificate Registrar shall be the Trustee. Upon any
resignation of a Certificate Registrar, the Trustee shall promptly appoint a
successor or, if it elects not to make such an appointment, assume the duties of
Certificate Registrar.

                  (b) Upon surrender for registration of transfer of any
Certificate at the office or agency maintained pursuant to Section 2.2, the
Depositor shall execute on behalf of the Trust, and the Trustee shall
authenticate and deliver in the name of the designated transferee or
transferees, one or more new Certificates of the same Class and in authorized
denominations of a like aggregate Certificate Principal Balance dated the date
of authentication by the Trustee.

                  (c) At the option of a Certificateholder, Certificates may be
exchanged for other Certificates of the same Class and in authorized
denominations of a like aggregate Certificate Principal Balance upon surrender
of the Certificates to be exchanged at the office or agency maintained pursuant
to Section 2.2. Whenever any Certificates are so surrendered for exchange, the
Depositor shall execute on behalf of the Trust, and the Trustee shall
authenticate and deliver, one or more Certificates dated the date of
authentication by the Trustee. Such Certificates shall be delivered to the
Certificateholder making the exchange.

                  (d) Every Certificate presented or surrendered for
registration of transfer or exchange shall be accompanied by a written
instrument of transfer in form satisfactory to the Trustee and the Certificate
Registrar duly executed by the Certificateholder or its attorney duly authorized
in writing. Each Certificate surrendered for registration of transfer and
exchange shall be cancelled and subsequently destroyed by the Trustee or
Certificate Registrar in accordance with its customary practice.

                  (e) No service charge shall be made for any registration of
transfer or exchange of Certificates, but the Trustee or the Certificate
Registrar may require payment of a sum sufficient to cover any tax or
governmental charge that may be imposed in connection with any transfer or
exchange of Certificates.

                  (f) The provisions of Sections 7.1, 7.3, 7.8 and 7.10 shall
apply to the Trustee in its role as Certificate Registrar, for so long as the
Trustee shall act as Certificate Registrar.

                                     - 11 -
<PAGE>   18
                                                                     EXHIBIT 4.2

                  SECTION 3.4  Calculation of Interest; Stripped Certificates

                  (a) Unless otherwise specified in the Forepart, the interest
rate applicable to the Certificates will be the fixed rate or equivalent
floating rate applicable to payments received by the Trust under the related
Swap Agreement (as determined by the Calculation Agent) or under the Underlying
Securities, if there is no Swap Agreement. The Calculation Agent (or the
Trustee, if applicable) shall calculate the interest rate applicable to the
Certificates from time to time as specified in the Forepart. All determinations
of interest by the Calculation Agent, if any, and otherwise the Trustee,
hereunder shall, in the absence of manifest error, be conclusive for all
purposes and binding on the Certificateholders. Each of the protections,
releases, indemnities and other terms applicable to the Trustee under Sections
7.1 and 7.3 shall apply to the Calculation Agent (or the Trustee, if applicable)
in connection with its actions as Calculation Agent for the Trust.

                  (b) With respect to any Stripped Certificate that is entitled
to principal distributions, with disproportionate, nominal or no interest
distributions, on or after the stated maturity date of the principal due on the
Underlying Securities related thereto, if the Underlying Securities Issuer shall
have paid in full and the Trustee shall have received the amount of such
principal upon maturity of the Underlying Securities related thereto, the
Trustee shall pay to the holder of such Stripped Certificate, upon presentation
and surrender thereof, no later than one Business Day after receipt of funds by
the Trustee, the entire amount of such principal, less any taxes or governmental
charges required to be withheld from such payment by the Trustee.

                  (c) With respect to any Stripped Certificate that is entitled
to interest distributions, with disproportionate, nominal or no principal
distributions, on or after the interest payment date on the Underlying Security
related thereto, if the Underlying Securities Issuer shall have paid in full and
the Trustee shall have received the amount of such interest due, the Trustee
shall pay to the holder of such Stripped Certificate, upon presentation and
surrender thereof, no later than one Business Day after receipt of funds by the
Trustee, the entire amount of such interest, less any taxes or governmental
charges required to be withheld from such payment by the Trustee.

                  SECTION 3.5 Mutilated, Destroyed, Lost or Stolen Certificates.

                  (a) If (i) any mutilated Certificate is surrendered to the
Certificate Registrar, or the Certificate Registrar receives evidence to its
satisfaction of the destruction, loss or theft of any Certificate, and (ii)
there is delivered to the Certificate Registrar, the Trustee and the Depositor
such security or indemnity as may be required by them to hold each of them
harmless, then, in the absence of notice to the Certificate Registrar or the
Trustee that such Certificate has been acquired by a protected purchaser, the
Depositor shall execute on behalf of the Trust and the Trustee shall
authenticate and deliver, in exchange for or in lieu of any such mutilated,
destroyed, lost or stolen Certificate, a replacement Certificate of the same
Class and a like aggregate Certificate Principal Balance; provided, however,
that if any such destroyed, lost or stolen Certificate, but not a mutilated
Certificate, shall have become or within seven days shall be due and payable,
then instead of issuing a replacement Certificate the Trustee may pay such
destroyed, lost or stolen Certificate when so due or payable.

                  (b) If, after the delivery of a replacement Certificate or
payment in respect of a destroyed, lost or stolen Certificate pursuant to
Section 3.5(a), a protected purchaser of the original Certificate in lieu of
which such replacement Certificate was issued presents for payment such original
Certificate, the Trustee shall be entitled to recover such replacement
Certificate (or such payment) from the Person to whom it was delivered or any
Person taking such replacement Certificate from such Person to whom such
replacement Certificate was delivered or any assignee of such Person, except a
protected

                                     - 12 -
<PAGE>   19
                                                                     EXHIBIT 4.2

purchaser, and shall be entitled to recover upon the security or indemnity
provided therefor to the extent of any loss, damage, cost or expense incurred by
the Trustee in connection therewith.

                  (c) In connection with the issuance of any replacement
Certificate under this Section 3.5, the Trustee may require the payment by the
Certificateholder of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other reasonable expenses
(including the fees and expenses of the Trustee and the Certificate Registrar)
connected therewith.

                  (d) Any Certificate issued pursuant to this Section 3.5 in
replacement of any mutilated, destroyed, lost or stolen Certificate shall
constitute an original additional contractual obligation of the Trust, whether
or not the mutilated, destroyed, lost or stolen Certificate shall be found at
any time or be enforced by anyone, and shall be entitled to all the benefits of
the Series Trust Agreement equally and proportionately with any and all other
Certificates duly issued hereunder.

                  (e) The provisions of this Section 3.5 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 Certificates.

                  SECTION 3.6 Persons Deemed Certificateholders. Prior to due
presentation of a Certificate for registration of transfer, the Trustee or the
Certificate Registrar may treat the Person in whose name the Certificate shall
be registered in the Certificate Register as the Certificateholder of such
Certificate for the purpose of receiving distributions pursuant to Article VI
and for all other purposes whatsoever, and neither the Trustee nor the
Certificate Registrar shall be affected by any notice to the contrary.

                  SECTION 3.7 Access to List of Certificateholders' Names and
Addresses.

                  (a) The Depositor shall furnish or cause to be furnished to
the Trustee not more than five (5) days before each Distribution Date, and at
such other times as the Trustee may request in writing, a list, in such form as
the Trustee may reasonably require, to the extent such information is in the
possession or control of the Depositor or any of its Paying Agents, of the names
and addresses of the Certificateholders as of the most recent Record Date;
provided, however, that so long as the Trustee is the Certificate Registrar,
such list shall not be required to be furnished to the Trustee. If the Trustee
is the Certificate Registrar, upon written request by the Depositor, the Trustee
shall furnish or cause to be furnished to the Depositor, within fifteen (15)
days after receipt of such request, a list, in such form as the Depositor may
reasonably require, of the names and addresses of the Certificateholders as of
the most recent Record Date. Each Certificateholder, by receiving and holding a
Certificate, shall be deemed to have agreed not to hold any of the Depositor or
the Trustee accountable by reason of the disclosure of its name and address,
regardless of the source from which such information was derived.

                  (b) For purposes of determining the identity of
Certificateholders entitled to vote or in connection with any notice or other
communication to be provided to Certificateholders pursuant to the Series Trust
Agreement by the Trustee with respect to any consent or other action to be taken
by Certificateholders, the Trustee shall establish a record date for such
consent or other action and, if any Certificates are held as Book-Entry
Certificates, give DTC notice of such record date not less than fifteen (15)
calendar days in advance of such record date to the extent possible. Such record
date shall be the later of thirty (30) days prior to the first solicitation of
such consent or other action and the date of the most recent list of
Certificateholders furnished to the Trustee pursuant to Section 3.7(a).

                                     - 13 -
<PAGE>   20
                                                                     EXHIBIT 4.2

                  SECTION 3.8 Preservation of Information; Communications to
Certificateholders.

                  (a) The Trustee shall preserve, in as current a form as is
reasonably practicable, the names and addresses of the Certificateholders
contained in the most recent list furnished to the Trustee as provided in
Section 3.7 and the names and addresses of Certificateholders received by the
Trustee in its capacity as Certificate Registrar. The Trustee may destroy any
list furnished to it as provided in such Section 3.7 upon receipt or preparation
of a new list so furnished.

                  (b) Certificateholders shall have the right to communicate
pursuant to TIA Section 312(b) with other Certificateholders with respect to
their rights under the Series Trust Agreement or under the Certificates, and the
Trustee shall take such action, from time to time, as may be required by the
provisions of TIA Section 312(b).

                  (c) The Depositor, the Trustee and the Certificate Registrar
shall have the protection of TIA Section 312(c).

                  SECTION 3.9 Book-Entry Certificates. The Certificates of each
Class, upon original issuance, shall be issued in the form of a global
Certificate or Certificates representing Book-Entry Certificates, to be
delivered to DTC by or on behalf of the Trust. Such global Certificate or
Certificates shall be registered on the Certificate Register in the name of Cede
& Co., the nominee of DTC, and no Certificate Owner shall receive a physical
Certificate representing such Certificate Owner's interest in a Certificate,
except as provided in Section 3.11. Unless and until definitive fully-registered
Certificates (the "Definitive Certificates") shall have been issued to
Certificate Owners pursuant to Section 3.11:

                  (a) the provisions of this Section 3.9 shall be in full force
and effect;

                  (b) the Certificate Registrar and the Trustee shall be
entitled to deal with Cede & Co. for all purposes of the Series Trust Agreement
(including the distribution of principal of and periodic distributions on the
Certificates and the giving of instructions or directions hereunder) as the sole
Certificateholder and shall have no obligation to the Certificate Owners, and
whenever a notice or other communication to the Certificateholders is required
under the Series Trust Agreement, unless and until Definitive Certificates shall
have been issued to Certificate Owners pursuant to Section 3.11, the Trustee
shall give all such notices and communications specified herein to be given to
Certificateholders to Cede & Co. and shall have no further obligation to the
Certificate Owners.;

                  (c) to the extent that the provisions of this Section 3.9
conflict with any other provisions of these Standard Terms, the provisions of
this Section 3.9 shall control;

                  (d) the rights of the Certificate Owners shall be exercised
only through DTC and shall be limited to those established by law and agreements
between such Certificate Owners and DTC and/or DTC Participants. Unless and
until Definitive Certificates are issued pursuant to Section 3.11, DTC will make
book-entry transfers among DTC Participants and receive and transmit
distributions of principal of and periodic distributions on the Certificates to
such DTC Participants, pursuant to the Letter of Representations; and

                  (e) whenever the Series Trust Agreement requires or permits
actions to be taken based upon instructions or directions of Certificateholders
evidencing a specified percentage, Cede & Co. shall be deemed to represent such
percentage only to the extent that it has received instructions to such

                                     - 14 -
<PAGE>   21
                                                                     EXHIBIT 4.2

effect from Certificate Owners and/or DTC Participants owning or representing,
respectively, such required percentage and has delivered such instructions to
the Trustee.

                  SECTION 3.10 Legend on Global Certificates. Each global
Certificate shall bear the following legend:

                           This Certificate is a global Certificate within the
                           meaning of the Series Trust Agreement hereinafter
                           referred to and is registered in the name of the
                           Depository Trust Company ("DTC") or a nominee of DTC.
                           This Certificate is exchangeable for Certificates
                           registered in the name of a Person other than DTC or
                           its nominee only in the limited circumstances
                           described in the Series Trust Agreement and may not
                           be transferred except as a whole by DTC or by a
                           nominee of DTC to DTC or another nominee of DTC.

                           Unless this Certificate is presented by an authorized
                           representative of DTC to the Trust or its agent for
                           registration of transfer, exchange, or payment, and
                           any Certificate issued is registered in the name of
                           Cede & Co. or in such other name as is requested by
                           an authorized representative of DTC (and any payment
                           is made to Cede & Co. or to such other entity as is
                           requested by an authorized representative of DTC).
                           ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE
                           OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch
                           as the registered owner hereof, Cede & Co., has an
                           interest herein.

                  SECTION 3.11 Definitive Certificates. If (a) the Depositor
advises the Trustee in writing that DTC is no longer willing or able to properly
discharge its responsibilities with respect to the Certificates, and the
Depositor does not appoint a qualified successor within 90 days; (b) the
Depositor advises the Trustee in writing that it elects to terminate the
book-entry system through DTC; or (c) an Available Information Event occurs
(provided that the financial statements and other information about the
Underlying Securities Issuer referred to in Section 4.1(a)(iv) hereof are not
thereafter available to the Trust), then, in any such case, the Trustee shall
notify DTC of the occurrence of any such event and of its intent to make
Definitive Certificates available to Certificate Owners (or, in the case of an
event referred to in clause (c), the relevant event), and shall request the
surrender by DTC to the Trustee of the typewritten global Certificate or
Certificates representing the Book-Entry Certificates by DTC and the Trustee.
Upon such surrender, accompanied by registration instructions from DTC, the
Trustee shall execute and authenticate the Definitive Certificates in accordance
with the instructions of DTC. Neither the Certificate Registrar nor the Trustee
shall be liable for any delay in delivery of such instructions and each may
conclusively rely on, and shall be protected in relying on, such instructions.
Upon the issuance of Definitive Certificates, the Trustee shall recognize the
holders of the Definitive Certificates as Certificateholders.

                  SECTION 3.12 Depositor as Certificateholder. Subject to the
proviso set forth in the definition of "Outstanding" in Section 1.1, the
Depositor in its individual or any other capacity may become the owner or
pledgee of Certificates and may otherwise deal with the Trustee or its
Affiliates as if it were not the Depositor.

                  SECTION 3.13 Transfer Restrictions.

                  (a) No Certificateholder or Certificate Owner may, in any
transaction or series of transactions, directly or indirectly (each of the
following, a "transfer"), (i) sell, assign or otherwise in any manner dispose of
all or any part of its interest in any Certificate issued to it, whether by act,
deed, merger

                                     - 15 -
<PAGE>   22
                                                                     EXHIBIT 4.2

or otherwise, or (ii) mortgage, pledge or create a lien or security interest in
such beneficial interest unless such transfer satisfies the conditions set forth
in this Section 3.13. No purported transfer of any interest in any Certificate
or Book-Entry Certificate or any portion thereof which is not made in accordance
with this Section 3.13 shall be given effect by or be binding upon the Trust,
the Depositor or the Trustee and any such purported transfer shall be null and
void ab initio and vest in the transferee no rights against the Trust, the
Depositor or the Trustee.

                  By its acceptance of a Certificate or Book-Entry Certificate,
each Certificateholder or Certificate Owner will be deemed to have represented
and agreed that transfer thereof is restricted and agrees that it shall transfer
such Certificate or Book-Entry Certificate only in accordance with the terms of
the Series Trust Agreement and such Certificate or Book-Entry Certificate and in
compliance with applicable law.

                  (b) Unless otherwise specified in the Forepart, no
Certificates or Book-Entry Certificates may be transferred to a Benefit Plan or
any Person acting on behalf of a Benefit Plan.

                  (c) Unless otherwise specified in the Forepart, each
Certificate issued hereunder will contain the following legend, together with
such legend, if any, as may be set out in the Forepart describing any other
applicable ERISA restrictions on transfer:

                           NO EMPLOYEE BENEFIT PLAN (AS DEFINED IN SECTION 3(3)
                           OF ERISA) WHICH IS SUBJECT TO ERISA, NO PLAN (AS
                           DEFINED IN SECTION 4975(e)(1) OF THE CODE, OTHER THAN
                           A GOVERNMENTAL OR CHURCH PLAN DESCRIBED IN SECTION
                           4975(g)(2) OR (3) OF THE CODE) WHICH IS SUBJECT TO
                           SECTION 4975 OF THE CODE, NO GOVERNMENTAL OR CHURCH
                           PLAN THAT IS SUBJECT TO ANY FEDERAL, STATE OR LOCAL
                           LAW THAT IS, TO A MATERIAL EXTENT, SIMILAR TO THE
                           PROHIBITED TRANSACTION PROVISIONS OF ERISA OR SECTION
                           4975 OF THE CODE, AND NO ENTITY WHOSE UNDERLYING
                           ASSETS INCLUDE "PLAN ASSETS" BY REASON OF ANY SUCH
                           PLAN'S INVESTMENT IN THE ENTITY (EXCLUDING ANY ENTITY
                           REGISTERED UNDER THE INVESTMENT COMPANY ACT OF 1940,
                           AS AMENDED) (EACH, A "PLAN"), OR ANY PERSON ACTING ON
                           BEHALF OF ANY PLAN, MAY PURCHASE OR HOLD A
                           CERTIFICATE OR ANY INTEREST THEREIN.

                  SECTION 3.14 Deemed ERISA Plan Representation. Each purchaser
of a Certificate will be deemed to have represented, agreed and acknowledged, as
applicable, for the benefit of the Depositor and the Underwriters and their
respective Affiliates, that the purchaser is not a Benefit Plan or a Person
acting on behalf of a Benefit Plan.

                  SECTION 3.15 Actions by Certificateholders. No
Certificateholder may institute any Proceeding with respect to the Series Trust
Agreement unless (a) such Certificateholder previously has given to the Trustee
written notice of a continuing breach of the Series Trust Agreement or an Event
of Default, (b) Certificateholders evidencing the Required Percentage - Remedies
have requested in writing that the Trustee institute such proceeding in its own
name as Trustee, (c) the Trustee has been offered reasonable indemnity for its
costs, expenses and liabilities, (e) the Trustee has for 15 days failed to
institute such proceeding, and (f) no direction inconsistent with such written
request has been given to the Trustee during such 15-day period by
Certificateholders evidencing the Required Percentage - Remedies.

                                     - 16 -
<PAGE>   23
                                                                     EXHIBIT 4.2

                                   ARTICLE IV
                                  THE DEPOSITOR

                  SECTION 4.1 Obligations of the Depositor.

                  (a) The Depositor shall:

                  (i) on behalf of the Trust, prepare and file with the
         Commission in accordance with rules and regulations prescribed by the
         Commission, following the execution thereof by the Trustee if so
         requested by the Depositor, and file with the Trustee, within fifteen
         (15) days after the Depositor on behalf of the Trust is required to
         file the same with the Commission, copies of the annual reports and of
         the information, documents and other reports (or copies of such
         portions of any of the foregoing as the Commission may from time to
         time by rules and regulations prescribe), if any, which the Depositor
         on behalf of the Trust may be required to file with the Commission
         pursuant to Section 13 or 15(d) of the Exchange Act with respect to the
         Trust;

                  (ii) on behalf of the Trust, prepare and file with the
         Commission, in accordance with rules and regulations prescribed by the
         Commission and file with the Trustee, within fifteen (15) days after
         the Depositor is required to file the same with the Commission, such
         additional information, documents and reports, including such
         certificates of independent public accountants contemplated in TIA
         Section 314(a)(2), with respect to compliance by the Depositor with the
         conditions and covenants of the Series Trust Agreement, if any, as may
         be required to be filed with the Commission from time to time by such
         rules and regulations;

                  (iii) supply to the Trustee (and the Trustee shall transmit by
         mail to all Certificateholders described in TIA Section 313(c), in the
         manner and to the extent provided therein) such summaries of any
         information, documents and reports required to be filed by the
         Depositor pursuant to clauses (i) and (ii) of this Section 4.1(a), if
         any, as may be required by rules and regulations prescribed from time
         to time by the Commission; and

                  (iv) after an Available Information Event, on behalf of the
         Trust, prepare and file with the Commission, following the execution
         thereof by the Trustee if so requested by the Depositor, and file with
         the Trustee, within fifteen (15) days after the Depositor on behalf of
         the Trust is required to file the same with the Commission, reports of
         the kind referred to in clause (i) of this Section 4.1(a) with respect
         to each Underlying Securities Issuer, to the extent such reports are
         then available to the Depositor, for as long as the Depositor on behalf
         of the Trust is required to file such reports under the Exchange Act.
         Such reports shall include quarterly and annual financial statements
         and other information of the type required to be filed on Form 8-K
         under the Exchange Act with respect to the Underlying Securities
         Issuer. A copy of each such report shall be provided to the Trustee at
         least ten (10) Business Days prior to the date required for filing. If
         such reports and information are not available to the Depositor at a
         time when such reports and information are required to be filed with
         the Commission by the Depositor on behalf of the Trust, the Depositor
         shall cause the removal of the Certificates from the DTC book-entry
         system as set forth in Section 3.11 of the Series Trust Agreement and
         shall notify the Underlying Securities Issuer that the
         Certificateholders constitute record holders of the Underlying
         Securities for purposes of the Exchange Act.

                  (b) The Depositor shall deliver to the Trustee, not less often
than annually, an Officer's Certificate of an Executive Officer of the Depositor
that meets the requirements of TIA Section 314, dated as of the date set forth
in the Forepart for such year, stating that:

                                     - 17 -
<PAGE>   24
                                                                     EXHIBIT 4.2

                  (i) a review of the activities of the Depositor during such
         calendar year and of the performance under the Series Trust Agreement
         has been made under such Executive Officer's supervision; and

                  (ii) to the best of such Executive Officer's knowledge, based
         on such review, the Depositor has fulfilled all conditions and
         covenants under the Series Trust Agreement throughout such year, or, if
         there has been a default in the fulfillment of any such condition or
         covenant, specifying each such default known to such Executive Officer
         and the nature and status thereof.

                  A copy of such certificate may be obtained by any
Certificateholder, without charge, upon a request in writing to the Depositor
addressed to the Corporate Trust Office of the Trustee.

                  (c) If and only if the Forepart provides for the pledge of the
Underlying Securities or any other Trust Assets to the Trustee (and not merely
the transfer, assignment, conveyance and sale, without recourse, thereof to the
Trustee), on the Closing Date, the Depositor shall furnish to the Trustee an
Opinion of Counsel either stating that, in the opinion of such counsel, such
action has been taken with respect to the recording and filing of the Series
Trust Agreement, any agreements supplemental hereto and any other requisite
documents, and with respect to the execution and filing of any financing
statements and continuation statements as are necessary to perfect and make
effective the lien and security interest intended to be created by the Series
Trust Agreement and reciting the details of such action, or stating that, in the
opinion of such counsel, no such action is necessary to make such lien and
security interest effective.

                  (d) If and only if the Forepart provides for the pledge of the
Underlying Securities or any other Trust Assets to the Trustee (and not merely
the transfer, assignment, conveyance and sale, without recourse, thereof to the
Trustee), at least annually after the Closing Date, the Depositor shall furnish
to the Trustee an Opinion of Counsel either stating that, in the opinion of such
counsel, such action has been taken with respect to the recording, filing,
re-recording and refiling of the Series Trust Agreement, any agreements
supplemental hereto and any other requisite documents, and with respect to the
execution and filing of any financing statements and continuation statements as
are necessary to maintain the lien and security interest intended to be created
by the Series Trust Agreement and reciting the details of such action, or
stating that, in the opinion of such counsel, no such action is necessary to
maintain such lien and security interest. Such Opinion of Counsel shall also
describe the recording, filing, re-recording and refiling of the Series Trust
Agreement, any agreements supplemental hereto and any other requisite documents
and the execution and filing of any financing statements and continuation
statements that will, in the opinion of such counsel, be required to maintain
the lien and security interest created by the Series Trust Agreement until such
date in the following calendar year.

                  (e) If and only if the Series Trust Agreement provides for the
pledge of the Underlying Securities or any other Trust Assets to the Trustee
(and not merely the transfer, assignment, conveyance and sale, without recourse,
thereof to the Trustee):

                  (i) whenever any property or securities are to be released
         from the lien created by the Series Trust Agreement, the Depositor
         shall furnish to the Trustee an Officer's Certificate of the Depositor
         (within 90 days of such release), that meets the requirements of TIA
         Section 314(d) certifying or stating the opinion of each Person signing
         such certificate as to the fair value of the property or securities
         proposed to be released and stating that in the opinion of such person
         the proposed release will not impair the security under the Series
         Trust Agreement in contravention of the provisions hereof;

                                     - 18 -
<PAGE>   25
                                                                     EXHIBIT 4.2

                  (ii) whenever any property or securities are to be released
         from the lien created by the Series Trust Agreement, if the fair value
         of the property or securities and of all other property or securities
         released from the lien created by the Series Trust Agreement since the
         commencement of the then current calendar year, as set forth in the
         certificates required by clause (i) above and this clause (ii), equals
         10% or more of the Certificate Principal Balance of the Outstanding
         Certificates at the beginning of such year, then the Depositor shall
         furnish to the Trustee an Independent Certificate as to the fair value
         of the property or securities proposed to be released and stating that
         in the opinion of such person the proposed release will not impair the
         security under the Series Trust Agreement in contravention of the
         provisions hereof, but such certificate need not be furnished in the
         case of any release of property or securities if the fair value thereof
         as set forth in the related Officer's Certificate of the Depositor is
         less than $25,000 or less than one percent of the then aggregate
         Certificate Principal Balance of the Outstanding Certificates;

                  (iii) prior to the deposit with the Trustee of any securities
         (other than Certificates or securities secured by a lien prior to the
         lien created by the Series Trust Agreement) in exchange for which the
         Trust is to authenticate and deliver Certificates, withdraw cash
         constituting a part of the Trust Assets or release of any property or
         securities subject to the lien created by the Series Trust Agreement,
         the Depositor shall furnish to the Trustee an Officer's Certificate of
         the Depositor (within 90 days of such deposit), that meets the
         requirements of TIA Section 314(d) certifying or stating the opinion of
         each person signing such certificate as to the fair value to the
         Depositor of the securities to be so deposited;

                  (iv) whenever the Depositor is required to furnish to the
         Trustee an Officer's Certificate of the Depositor described in clause
         (iii) above, the Depositor shall also deliver to the Trustee an
         Independent Certificate as to the same matters, and in the case of
         authentication and delivery of Certificates, shall cover the fair value
         to the Depositor of all other securities so deposited since the then
         current calendar year as to which an Independent Certificate has not
         yet been furnished, if the fair value to the Depositor of the
         securities to be so deposited and of all other such securities made the
         basis of any such authentication and delivery, withdrawal or release
         since the commencement of the then current calendar year, as set forth
         in the certificates delivered pursuant to clause (iii) above and this
         clause (iv), is 10% or more of the Certificate Principal Balance of the
         Outstanding Certificates, but such a certificate need not be furnished
         with respect to any securities so deposited, if the fair value thereof
         to the Depositor as set forth in the related Officer's Certificate of
         the depositor is less than $25,000 or less than one percent of the
         aggregate Certificate Principal Balance of the Outstanding
         Certificates;

                  (v) subject to the payment of its fees and expenses hereunder,
         the Trustee may, and when required by the provisions of the Series
         Trust Agreement, shall, execute instruments to release property from
         the lien created by the Series Trust Agreement, or convey the Trustee's
         interest in the same, in a manner and under circumstances that are
         consistent with the provisions of the Series Trust Agreement. No party
         relying upon an instrument executed by the Trustee in connection
         therewith shall be bound to ascertain the Trustee's authority, inquire
         into the satisfaction of any conditions precedent or see to the
         application of any moneys; and

                  (vi) the Trustee shall at such time as there are no
         Outstanding Certificates and all sums due to the Trustee hereunder have
         been paid, release any remaining portion of the Trust Assets that
         secured the Certificates from the lien created by the Series Trust
         Agreement and release to the Depositor or any other Person entitled
         thereto any funds then included in the trust estate.

                                     - 19 -
<PAGE>   26
                                                                     EXHIBIT 4.2

                  (f) In relation to the authentication and delivery of the
Certificates, the release or the release and substitution of property subject to
the lien created by the Series Trust Agreement, to the satisfaction and
discharge of the Series Trust Agreement, or to any other action to be taken by
the Trustee at the request or upon the application of the Depositor, the
Depositor shall furnish to the Trustee the following evidence of compliance with
the conditions precedent (including any covenants compliance with which
constitutes a condition precedent), if any, to such action, namely (i) an
Officer's Certificate stating that all conditions precedent, if any, provided
for in the Series Trust Agreement relating to the proposed action have been
complied with, (ii) an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any, have been complied with and (iii)
(if required by the TIA) an Independent Certificate from a firm of certified
public accountants meeting the applicable requirements of the TIA, 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 the Series Trust
Agreement, no additional certificate or opinion need be furnished. Every
certificate or opinion with respect to compliance with a condition or covenant
provided for in the Series Trust Agreement shall include:

                  (i) a statement that such signatory of such certificate or
         opinion has read such covenant or condition and the definitions herein
         relating thereto;

                  (ii) 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;

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

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

                                    ARTICLE V
                               ACTIONS BY TRUSTEE

                  SECTION 5.1 Prior Notice to Certificateholders with Respect to
Certain Matters. The Trustee shall not take action with respect to the following
matters, unless (a) the Trustee shall have notified the Certificateholders in
writing of the proposed action at least 30 days before the taking of such
action, (b) no Certificateholders shall have notified the Trustee in writing
prior to the 30th day after such notice is given that such Certificateholders
have withheld consent or provided alternative direction, or, if any such
Certificateholders have so withheld consent or provided alternative direction, a
majority, as specified in Section 5.3 hereof, shall have notified the Trustee in
writing prior to such 30th day that they have consented to such action, and (c)
the Rating Agency Condition is satisfied:

                  (i) the initiation of any claim or lawsuit by the Trust or the
         compromise of any action, claim or lawsuit brought by or against the
         Trust;

                  (ii) the appointment pursuant to the Series Trust Agreement of
         a successor Certificate Registrar, or the consent to the assignment by
         the Certificate Registrar of its obligations under the Series Trust
         Agreement;

                  (iii) the amendment or other change to the Series Trust
         Agreement or any Basic Document in circumstances where the consent of
         any Certificateholder is required;

                                     - 20 -
<PAGE>   27
                                                                     EXHIBIT 4.2

                  (iv) the amendment or other change to the Series Trust
         Agreement or any Basic Document in circumstances where the consent of
         any Certificateholder is not required and such amendment materially
         adversely affects the interest of the Certificateholders;

                  (v) the appointment, pursuant to the Series Trust Agreement,
         of a successor Certificate Registrar or Paying Agent, or the consent to
         the assignment by the Paying Agent or Certificate Registrar of its
         obligations under the Series Trust Agreement.

                  The Trustee shall not have the power to commence a voluntary
         proceeding in bankruptcy relating to the Trust without the unanimous
         prior approval of all Certificateholders and the delivery to the
         Trustee by each such Certificateholder of a certificate certifying that
         each such Certificateholder reasonably believes hat the Trust is
         insolvent.

                  SECTION 5.2 Action by Trustee with Respect to Certain Matters.
The Trustee shall not have the power, except upon the authority of a written
direction signed by all of the Certificateholders or as expressly provided in
the Basic Documents, to (a) sell or dispose of the Underlying Securities or any
other Trust Assets or any interest therein, (b) assign or terminate the Swap
Agreement, any Related Agreement or any Credit Enhancement Agreement; or (c)
agree to any amendment, modification or supplement to the Underlying Securities,
or any other Trust Assets, the Swap Agreement, any Related Agreement or any
Credit Enhancement Agreement, provided the Rating Agency Condition is satisfied.
The Trustee shall provide notice to the Rating Agency after the occurrence of
any event described in item (a), (b) or (c) in the preceding sentence.

                  SECTION 5.3 Majority Control. Except as expressly provided
herein, any action that may be taken or consent that may be given or withheld by
the Certificateholders under the Series Trust Agreement may be taken, given or
withheld by Certificateholders evidencing a majority of the Certificate
Principal Balance of all Classes or of the Voting Rights if the Voting Rights
are allocated by Class in the Forepart. Except as expressly provided in the
Series Trust Agreement, any written notice of the Certificateholders delivered
pursuant to the Series Trust Agreement shall be effective if signed by
Certificateholders evidencing a majority of the Certificate Principal Balance of
all Classes at the time of the delivery of such notice.

                                   ARTICLE VI
                   APPLICATION OF TRUST FUNDS; CERTAIN DUTIES

                  SECTION 6.1 Establishment of Collection Account.

                  (a) The Trustee, for the benefit of the Certificateholders
shall establish and maintain in the name of the Trust, one Eligible Trust
Account known as the Collection Account, bearing an additional designation
clearly indicating that the funds deposited therein are held for the benefit of
the Certificateholders, subject to the obligations of the Trust under the Swap
Agreement, any Related Agreement and any Credit Enhancement Agreement. The
Trustee, directly or through its agents, shall make reasonable efforts to
collect all scheduled payments under the Trust Assets, the Swap Agreement, any
Related Agreement and any Credit Enhancement Agreement and will follow, or cause
to be followed, any collection procedures that it would follow with respect to
comparable financial assets that it held for its own account, provided, these
procedures must be consistent with the Series Trust Agreement and any related
instrument governing any other Trust Asset, the Swap Agreement, any Related
Agreement or any Credit Enhancement Agreement.

                  (b) The Trustee shall possess all right, title and interest in
and to all funds on deposit from time to time in the Collection Account and in
all proceeds thereof. The Collection Account shall be

                                     - 21 -
<PAGE>   28
                                                                     EXHIBIT 4.2

under the sole dominion and control of the Trustee for the benefit of the
Certificateholders, subject to the obligations of the Trust under the Swap
Agreement, any Related Agreement and any Credit Enhancement Agreement. If, at
any time, the Collection Account ceases to be an Eligible Trust Account, the
Trustee shall within 10 Business Days (or such longer period, not to exceed 30
calendar days, to which each Rating Agency may consent) establish a new
Collection Account as an Eligible Trust Account and shall transfer any funds in
the existing Collection Account to such new Collection Account.

                  (c) The Collection Account shall be a non-interest bearing
account. Pending application pursuant to Sections 6.2 or 8.2 hereof, moneys held
in the Collection Account shall not be reinvested except as provided in the
Forepart.

                  SECTION 6.2 Application of Trust Funds.

                  (a) Except to the extent otherwise specified in the Forepart,
the Trustee shall credit to the Collection Account all moneys or property
received by the Trust in respect of (i) the Trust Assets and (ii) payments to
the Trust under the Swap Agreements or the Related Agreements, other than any
payment made to the Trust on the Closing Date, which payment is required to be
applied to the purchase of the Trust Assets and (iii) any payments to the Trust
under any Credit Enhancement Agreement.

                  (b) On each Obligations Payment Date, the Trustee shall (i)
withdraw from the Collection Account such amounts as are necessary to satisfy
the expenses of the Trust, to the extent not paid by the Depositor pursuant to
Section 7.10 hereof, (ii) withdraw from the Collection Account and remit first
to the Swap Counterparty, then to the counterparty to any Related Agreement, and
then to the counterparty to any Credit Enhancement Agreement (in accordance with
any priority of payments specified in the Forepart), any amounts due to such
Person from the Trust on such date pursuant to the terms of the Swap Agreement,
the relevant Related Agreement or the relevant Credit Enhancement Agreement (net
of amounts due to the Trust from such Person on such date), and (iii) retain in
the Collection Account any amounts due to the Trust and received from such
Person on such date pursuant to the terms of the Swap Agreement, the relevant
Related Agreement or the relevant Credit Enhancement Agreement.

                  (c) On each Distribution Date, the Trustee shall, after paying
any amounts due under the Swap Agreement, any Related Agreement or any Credit
Enhancement Agreement as provided in Section 6.2(b), distribute from the
Collection Account to the Certificateholders, on a pro rata basis, all amounts
then remaining on deposit in the Collection Account, provided that any payments
which the Trustee has received in respect of the Swap Agreement, any Related
Agreement or any Credit Enhancement Agreement by 3:00 p.m. (New York City time)
on the Distribution Date will be distributed on the Distribution Date, and any
payments received after 3:00 p.m. on the Distribution Date will be distributed
on the next Business Day, and such delayed payments shall not include any
additional interest.

                  (d) The Trustee shall be entitled to rely on a certificate of
the Calculation Agent, if applicable, for the amount of any payments to be paid
or received by the Trust under the Swap Agreement, any Related Agreement or
Credit Enhancement Agreement or paid by the Trust on the Certificates, which the
Calculation Agent shall provide at least two (2) Business Days prior to each
Obligations Payment Date and Distribution Date, respectively.

                  (e) Notwithstanding the foregoing Sections 6.2(a) to (d), in
the event of an event described in Section 8.2(a) hereof, funds shall be applied
by the Trustee in accordance with Section 8.2 and not this Section 6.2.

                                     - 22 -
<PAGE>   29
                                                                     EXHIBIT 4.2

                  (f) If any withholding tax is imposed on the Trust's payment
(or allocations of income) to a Certificateholder such tax shall reduce the
amount otherwise distributable to the Certificateholder in accordance with this
Section 6.2, including any amounts payable to Certificateholders pursuant to
Section 8.2 below. The Trustee is hereby authorized and directed to retain from
amounts otherwise distributable to the Certificateholders sufficient funds for
the payment of any tax that is legally required to be withheld by the Trust (but
such authorization shall not prevent the Trustee if indemnified to its
satisfaction, from contesting any such tax in appropriate proceedings and
withholding payment of such tax, if permitted by law, pending the outcome of
such proceedings). The amount of any withholding tax imposed with respect to a
Certificateholder shall be treated as cash distributed to such Certificateholder
at the time it is withheld by the Trust and remitted to the appropriate taxing
authority. If there is a possibility that withholding tax is payable with
respect to a distribution (such as a distribution to a Certificateholder that is
a non-U.S. Person), the Trustee may in its sole discretion withhold such amounts
in accordance with this Section 6.2(f). If a Certificateholder wishes to apply
for a refund of any such withholding tax, the Trustee shall reasonably cooperate
with such Certificateholder in making such claim so long as such
Certificateholder agrees to reimburse the Trustee for any out-of-pocket expenses
incurred. The Trustee shall not be liable to any Person for withholding or
failing to withhold any such withholding tax.

                  (g) If the Trustee has received any amount from any Person in
respect of distributions of interest on the Underlying Securities or any other
Trust Asset and such Person is entitled to require and requires, that the
Trustee repay such amounts, the Trustee shall have the right to reimbursement of
any such amounts, from the Certificateholders with respect to any such amounts
distributed to Certificateholders and shall, to the extent provided under the
Swap Agreement, any Related Agreement or any Credit Enhancement Agreement, seek
reimbursement of any such amounts from the relevant party under such agreement,
including in each case any amounts payable to Certificateholders pursuant to
Section 8.2 below.

                  (h) Notwithstanding any other provisions in the Series Trust
Agreement, the right of any Certificateholder to receive payment of principal of
and interest on a Certificate on or after their due dates, and to institute suit
for the enforcement of any such payment on or after the date such payment is
payable, shall not be impaired without the consent of such Certificateholder.

                  SECTION 6.3 Appointment of Paying Agent. The Trustee may
appoint one or more paying agents (each, a "Paying Agent") with respect to the
Certificates. Any such Paying Agent shall be authorized to make distributions to
Certificateholders from the Collection Account pursuant to the provisions of the
Series Trust Agreement and shall report the amounts of such distributions to the
Trustee. Any Paying Agent shall have the revocable power to withdraw funds from
such Collection Account for the purpose of making such distributions. The
Trustee in its sole discretion, may revoke such power and remove the Paying
Agent. The Paying Agent shall initially be the Trustee and any co-paying agent
chosen by the Depositor and acceptable to the Trustee, including, if and so long
as any series of Certificates is listed on the any securities exchange and such
exchange so requires, a co-paying agent in any city required by the rules of
such exchange. Any Paying Agent shall be permitted to resign as Paying Agent
upon 30 days' notice to the Trustee. In the event that the Trustee shall resign
as Paying Agent, the Trustee shall appoint a successor or additional Paying
Agent. The Trustee shall cause each successor or additional Paying Agent to
execute and deliver to the Trustee an instrument in which such successor or
additional Paying Agent shall agree with the Trustee that (a) it will hold all
sums, if any, held by it for distribution to the Certificateholders in trust for
the benefit of the Certificateholders entitled thereto until such sums shall be
distributed to such Certificateholders or returned to the Trustee, and (b) it
will give the Trustee notice of any default, that is known to it, by any
Underlying Securities Issuer or the obligor under any other Trust Asset, the
Swap Agreement, any Related Agreement or any Credit Enhancement Agreement. The
Paying Agent shall return all unclaimed funds to the Trustee and upon removal
shall

                                     - 23 -
<PAGE>   30
                                                                     EXHIBIT 4.2

also return all funds in its possession to the Trustee. The provisions of
Sections 7.1, 7.3, 7.8 and 7.10 shall apply to the Trustee also in its roles as
Paying Agent, for so long as the Trustee shall act as Paying Agent. Any
reference in the Series Trust Agreement to the Paying Agent shall include any
co-paying agent unless the context requires otherwise. Notwithstanding anything
contained herein to the contrary, the appointment of a Paying Agent pursuant to
this Section 6.3 shall not release the Trustee from the duties, obligations,
responsibilities or liabilities arising under the Series Trust Agreement other
than with respect to funds paid to such Paying Agent.

                  SECTION 6.4 Method of Payment. Subject to subsection 8.1(c),
distributions required to be made to Certificateholders on any Distribution Date
shall be made to each Certificateholder of record on the immediately preceding
Record Date either by wire transfer, in immediately available funds, to the
account of such Certificateholder at a bank or other entity having appropriate
facilities therefor, if such Certificateholder shall have provided to the
Certificate Registrar appropriate written instructions at least five Business
Days prior to such Record Date, or, if not, by check mailed to such
Certificateholder at the address of such Certificateholder appearing in the
Certificate Register.

                  SECTION 6.5 Reports to Certificateholders. On the next
Business Day following each Distribution Date, or as soon after each
Distribution Date as practicable, the Trustee shall forward or cause to be
forwarded to the Depositor, each Certificateholder and any other Persons
specified in the Forepart, a statement setting forth:

                  (a) the amount of the distribution on such Distribution Date
to Certificateholders of each Class allocable to principal of and premium, if
any, and interest on the Certificates of each such Class, and the amount of
aggregate unpaid interest accrued or accreted as of such Distribution Date;

                  (b) in the case of each Class of Certificates that bears
interest at a floating rate, the respective floating pass-through rate
applicable to each such Class on such Distribution Date, as calculated in
accordance with the method specified in such Certificates and the Series Trust
Agreement;

                  (c) the amount of compensation received by the Trustee for the
period relating to such Distribution Date and such other customary information
as the Trustee deems necessary or desirable, or that any such Certificateholder
reasonably requests, to enable such Certificateholders to prepare their tax
returns;

                  (d) the aggregate stated principal amount of the Underlying
Securities, the current rating assigned by each Rating Agency thereto and the
current interest rate (or weighted average interest rate) thereon at the close
of business on such Distribution Date;

                  (e) the aggregate Certificate Principal Balance of each Class
of Certificates, including any Class of Certificates not offered to the public)
at the close of business on such Distribution Date, separately identifying any
reduction in the aggregate Certificate Principal Balance due to the allocation
of any realized losses or otherwise; and

                  (f) as to any Class to which any Credit Enhancement Agreement
applies, the amount of credit support available under such agreement as of the
close of business on that Distribution Date.

                  In the case of information furnished pursuant to subclauses
(a) and (c) above, the amounts shall be expressed as a dollar amount (or the
equivalent thereof in any other specified currency) per minimum authorized
denomination of Certificates. Within a reasonable period of time after the end
of each calendar year, the Trustee shall furnish to each person who at any time
during such calendar year was a Certificateholder a statement containing the
information set forth in subclauses (a) and (c) above,

                                     - 24 -
<PAGE>   31
                                                                     EXHIBIT 4.2

aggregated for such calendar year or the applicable portion thereof during which
such person was a Certificateholder. Such obligation of the Trustee shall be
deemed to have been satisfied to the extent that substantially comparable
information shall be provided by the Trustee pursuant to any requirements of the
Code as are from time to time in effect. In the case of the rating furnished
pursuant to subclause (d) above, the Trustee may rely on an information agent
such as Bloomberg L.P.

                  SECTION 6.6 Accounting and Information to Certificateholders,
Internal Revenue Service and Others. The Trustee shall (a) maintain (or cause to
be maintained) the books of the Trust on a calendar year basis on the accrual
method of accounting, (b) deliver to each Certificateholder, as may be required
by the Code and applicable Treasury Regulations or otherwise, such information
reasonably available to the Trustee as may be required to enable each
Certificateholder to prepare its federal income tax returns, (c) if the Trust is
intended to be treated as a grantor trust, as specified in the Forepart, file
such tax returns relating to the Trust and make such elections as may from time
to time be required or appropriate under any applicable state or federal statute
or rule or regulation thereunder, (d) cause such tax returns to be signed in the
manner required by law and (e) collect or cause to be collected any withholding
tax as described in and in accordance with subsection 6.2(f) with respect to
income or distributions to Certificateholders. The Trustee shall be authorized
to retain an agent for the purpose of performing its obligations under the
preceding clauses (a), (b) and (c), and any expense of any such agent, to the
extent not paid by the Depositor pursuant to its separate fee agreement with the
Trustee, shall be an expense of the Trust and not of the Trustee.

                  SECTION 6.7 Signature on Returns. The Trustee shall sign on
behalf of the Trust any and all tax returns of the Trust.

                                   ARTICLE VII
                                   THE TRUSTEE

                  SECTION 7.1 Duties of Trustee; Notice of Defaults.

                  (a) The Trustee shall not (except during the continuance of an
Event of Default) be liable except for the performance by the Trustee of such
duties, and only such duties, as are specifically set forth in the Series Trust
Agreement and the other Basic Documents, including the administration of the
Trust in the interest of the Certificateholders, subject to the Basic Documents
and in accordance with the provisions of the Series Trust Agreement. No implied
covenants or obligations shall be read into the Series Trust Agreement against
the Trustee or the Depositor. During the period that an Event of Default shall
have occurred and is continuing, the Trustee shall exercise such of the rights
and powers vested in it by the Series Trust Agreement, and shall use the same
degree of care and skill in their exercise, as a prudent person would exercise
or use under the circumstances in the conduct of such person's own affairs.

                  (b) In the absence of bad faith on its part, and except during
the continuance of an Event of Default, the Trustee may conclusively rely upon
certificates or opinions furnished to the Trustee and conforming to the
requirements of the Series Trust Agreement in determining the truth of the
statements and the correctness of the opinions contained therein; provided,
however, that the Trustee shall have examined such certificates or opinions so
as to determine compliance of the same with the requirements of the Series Trust
Agreement.

                  (c) The Trustee may not be relieved from liability for its own
negligent action, its own negligent failure to act or its own willful
misfeasance, except that:

                  (i) this subsection 7.1(c) shall not limit the effect of
         subsections 7.1(a) or (b);

                                     - 25 -
<PAGE>   32
                                                                     EXHIBIT 4.2

                  (ii) the Trustee shall not be liable for any error of judgment
         made in good faith by a Responsible Officer or Officers, or any
         Authorized Signatory, unless it is proved that the Trustee or such
         Authorized Signatory was negligent in ascertaining the pertinent facts;

                  (iii) the Trustee shall not be liable with respect to any
         action it takes or omits to take in good faith in accordance with a
         direction received by it pursuant to Section 5.2, 5.3 or 7.5; and

                  (iv) the Trustee shall not be liable for any loss or
         diminution in value of Underlying Securities or other Trust Assets sold
         by it under the Series Trust Agreement in good faith in accordance with
         its terms.

                  (d) Subject to Section 6.1 and the definition of "Eligible
Trust Account" in Section 1.1 hereof, moneys received by the Trustee hereunder
need not be segregated in any manner except to the extent required by law and
may be deposited under such general conditions as may be prescribed by law, and
the Trustee shall not be liable for any interest thereon.

                  (e) The Trustee shall not take any action that (i) is
inconsistent with the purposes of the Trust set forth in Section 2.3, (ii)
would, to the actual knowledge of a Responsible Officer, or to the actual
knowledge of an Authorized Signatory in the case of any action taken by an or
Authorized Signatory, of the Trustee, result in the Trust's becoming taxable as
a corporation for federal income tax purposes, or (iii) the Trustee should
reasonably be expected to know would result in the Trust becoming taxable as a
corporation for federal income tax purposes (in this connection, the Trustee
shall be protected in assuming that the performance of its express duties
hereunder would not have such a result). The Depositor shall not direct the
Trustee to take any action that would violate the provisions of this Section
7.1.

                  (f) The Trustee shall have the legal power to exercise all of
the rights, powers and privileges of holders of the Underlying Securities and
other Trust Assets and all rights of the Trust under the Swap Agreement, any
Related Agreements and Credit Enhancement Agreements. However, neither the
Trustee (except as specifically provided herein) nor the Depositor shall be
under any obligation whatsoever to appear in, prosecute or defend any action,
suit or other proceeding in respect of the Underlying Securities or other Trust
Assets, the Swap Agreement or any Related Agreement or any Credit Enhancement
Agreement or the Certificates which is not incidental to its responsibilities
under the Series Trust Agreement or which in its opinion may involve it in any
expense or liability.

                  (g) If there is an event of default (as defined in the
indenture or other document pursuant to which the Underlying Securities were
issued) with respect to any Underlying Security and such default is known to the
Trustee, the Trustee shall give notice to DTC or, if any Certificates are
Definitive Certificates, directly to the relevant Certificateholders in the
manner and to the extent provided in TIA Section 313(c) within 90 days after
such event of default occurs. Such notice shall set forth (i) the identity of
the Underlying Securities, (ii) the date and nature of such event of default,
(iii) the face amount of the obligation to which such event of default relates,
(iv) the identifying numbers of the series of Certificates, or any combination,
as the case may be, evidencing the obligations (or portions thereof) described
above in clause (iii), and (v) any other information which the Trustee may deem
appropriate. Except in the case of a default in payment of principal or interest
in respect of the Underlying Securities or other Trust Assets, the Trustee shall
be protected in withholding the notice to Certificateholders if and so long as a
committee of its Responsible Officers in good faith determines that withholding
the notice is in the interests of the Certificateholders.

                  (h) If (i) default is made in the payment of any installment
of interest on any Underlying Security when the same becomes due and payable,
and such default continues unremedied for

                                     - 26 -
<PAGE>   33
                                                                     EXHIBIT 4.2

the period specified in the indenture or other authorizing document for such
Underlying Security (or, if no such period is specified, five (5) days) after
receipt by the Underlying Securities Issuer of notice thereof from the Trustee
or receipt by the Underlying Securities Issuer and the Trustee of notice thereof
from Certificateholders representing at least 25% of the Certificate Principal
Balance; or (ii) default is made in the payment of the principal of or any
installment of the principal of any Underlying Security when the same becomes
due and payable, and such default continues unremedied for the period specified
in the indenture or other authorizing document for such Underlying Security (or,
if no such period is specified, five (5) days after receipt by the Underlying
Securities Issuer of notice thereof from the Trustee or receipt by the
Underlying Securities Issuer and the Trustee of notice thereof from
Certificateholders representing at least 25% of the Certificate Principal
Balance, and the Underlying Securities Issuer shall, upon demand of the Trustee,
fail to pay forthwith to the Trustee, for the benefit of the Certificateholders,
the whole amount then due and payable on such Underlying Security for principal
and interest, with interest upon the overdue principal, at the rate borne by the
Underlying Security and in addition thereto such further amount as shall be
sufficient to cover the costs and expenses of collection, including the
reasonable compensation, expenses, disbursements and advances of the Trustee and
its agents and counsel, to the extent permitted by law and the terms of the
Underlying Securities, then (A) if the Underlying Securities are not covered by
a Credit Enhancement Agreement in favor of the Trust, the Trustee shall follow,
or cause to be followed, normal and customary practices and procedures as it
deems necessary or advisable to recover upon the defaulted Underlying
Securities, provided however, that the Trustee shall not be required to expend
or risk its own funds or otherwise incur personal financial liability, or (B) if
the Underlying Securities are covered by a Credit Enhancement Agreement, the
Trustee, subject to provision being made for indemnification against costs,
expenses and liabilities in a form satisfactory to the Trustee, shall institute
a Proceeding for the collection of the sums so due and unpaid, and shall
prosecute such Proceeding to judgment or final decree or settlement, and shall
enforce the same against the Underlying Securities Issuer or other obligor upon
the Underlying Securities and collect in the manner provided by law out of the
property of the Underlying Securities Issuer or other obligor upon the
Underlying Security wherever situated, the moneys adjudged or decreed to be
payable, unless otherwise directed by the Certificateholders evidencing a
majority of the Certificate Principal Balance. In connection therewith, the
Trustee shall use its best reasonable efforts in accordance with such normal and
customary practices as it shall deem necessary or advisable, and shall have the
power and authority, acting alone, to do any and all things in connection
therewith and the administration of the Trust as it may deem necessary or
advisable.

                  (i) Section 315(e) of the TIA is hereby excluded from
operation in respect of the Series Trust Agreement.

                  SECTION 7.2 Rights of Trustee. The Trustee is authorized and
directed to execute and deliver the Basic Documents and each certificate or
other document attached as an exhibit to or contemplated by the Basic Documents
to which the Trust is to be a party, in such written form as the Depositor shall
approve in writing, executed by a Responsible Officer. In addition to the
foregoing, the Trustee is authorized and shall be obligated to take all actions
required of the Trust pursuant to the Basic Documents.

                  SECTION 7.3 Acceptance of Trusts and Duties. Except as
otherwise provided in this Article VII, in accepting the trusts hereby created,
the Trustee acts solely as Trustee hereunder and not in its individual capacity
and all Persons having any claim against the Trustee by reason of the
transactions contemplated by the Series Trust Agreement or any Basic Document
shall look only to the Trust Assets for payment or satisfaction thereof. The
Trustee accepts the trusts hereby created and agrees to perform its duties
hereunder with respect to such trusts but only upon the terms of the Series
Trust Agreement. The Trustee also agrees to disburse all moneys actually
received by it constituting part of the Trust Assets upon the terms of the Basic
Documents. The Trustee shall not be liable or accountable under any Basic
Document under any circumstances, except (i) for its own negligent action, its
own negligent failure to act

                                     - 27 -
<PAGE>   34
                                                                     EXHIBIT 4.2

or its own willful misfeasance or bad faith (except that the foregoing shall not
limit the effect of subsections 7.1(a) or (b), or (ii) in the case of the
inaccuracy of any representation or warranty contained in Section 7.7. In
particular, but not by way of limitation (and subject to the exceptions set
forth in the preceding sentence):

                  (a) the Trustee shall at no time have any responsibility or
liability for or with respect to the legality, validity and enforceability of
any Underlying Security, other Trust Asset, the Swap Agreement, any Related
Agreement and any Credit Enhancement Agreement, or the perfection and priority
of any security interest created by any Underlying Security or the maintenance
of any such perfection and priority, or for or with respect to the sufficiency
of the Trust Assets or their sufficiency to generate the payments to be
distributed to Certificateholders under the Series Trust Agreement, including,
without limitation: the terms and conditions of any Underlying Security, other
Trust Asset, the Swap Agreement, any Related Agreement and any Credit
Enhancement Agreement; the validity of the assignment of any Underlying Security
or other Trust Asset to the Trust or of any intervening assignment; the
completeness of any Underlying Security, other Trust Asset, the Swap Agreement,
any Related Agreement and any Credit Enhancement Agreement; the performance or
enforcement of any Underlying Security, other Trust Asset, the Swap Agreement,
any Related Agreement and any Credit Enhancement Agreement; the compliance by
the Depositor with any warranty or representation made under any Basic Document
or in any related document or the accuracy of any such warranty or
representation or any action of the Depositor taken in the name of the Trustee;

                  (b) under no circumstances shall the Trustee be liable for
indebtedness or other payment or distribution obligations evidenced by or
arising under any of the Basic Documents, including the Certificate Principal
Balance of and periodic distributions on the Certificates;

                  (c) the Trustee shall not be responsible for or in respect of
and makes no representation as to the validity or sufficiency of any provision
of the Series Trust Agreement, the accuracy or completeness of any offering
documents for the Certificates or for the due execution hereof by the Depositor
or for the form, character, genuineness, sufficiency, value or validity of any
of the Underlying Securities, the Certificates (other than the certificate of
authentication on the Certificates) or of any Underlying Securities or any
related documents, and the Trustee shall in no event assume or incur any
liability, duty or obligation to any Certificateholder, other than as expressly
provided for in the Basic Documents;

                  (d) the Trustee shall not be liable for the default or
misconduct of the Depositor or any other party (other than itself, as provided
in the Series Trust Agreement) under any of the Basic Documents or otherwise;

                  (e) the Trustee shall be under no obligation to exercise any
of the rights or powers vested in it by the Series Trust Agreement or to make
any investigation of related matters or to institute, conduct or defend any
litigation under or in relation to the Series Trust Agreement at the request,
order or direction of any of the Certificateholders, unless the
Certificateholders have offered the Trustee reasonable security or indemnity
against the costs, expenses and liabilities which may be incurred by the
Trustee. The right of the Trustee to perform any discretionary act enumerated in
the Series Trust Agreement or in any other Basic Document shall not be construed
as a duty, and the Trustee shall not be answerable for other than its willful
misfeasance, bad faith or negligence in the performance of any such act or by
reason of reckless disregard of the Trustee's obligations and duties under the
Series Trust Agreement; and

                  (f) the Trustee shall not incur any liability to any
Certificateholder if, by reason of any provision of any present or future law,
or regulation thereunder, or any governmental authority, or by

                                     - 28 -
<PAGE>   35
                                                                     EXHIBIT 4.2

reason of any act of God or war or other circumstance beyond the control of the
relevant party, the Trustee shall be prevented or forbidden from doing or
performing any act or thing which the terms of the Series Trust Agreement
provide shall be done or performed; and the Trustee shall not incur any
liability to any Certificateholder by reason of any non-performance or delay,
caused as aforesaid, in the performance of any act or thing which the terms of
the Series Trust Agreement provide shall or may be done or performed, or by
reason of any exercise of, or failure to exercise, any discretion provided for
in the Series Trust Agreement.

                  SECTION 7.4 Preferential Collection of Claims Against Trustee.
The Trustee shall comply with TIA Section 311(a), excluding any creditor
relationship listed in TIA Section 311(b). A Trustee who has resigned or been
removed shall be subject to TIA Section 311(a) to the extent required by TIA
Section 311(a).

                  SECTION 7.5 Action upon Instruction by Certificateholders.

                  (a) Subject to Sections 5.2, 5.3 and 9.2(b) and in accordance
with the terms of the Basic Documents, the Certificateholders of a Class may by
written instruction direct the Trustee in the management of the Trust, or
consent to the waiver of any past default and its consequences, and may direct
the time, method and place of conducting any proceeding for any remedy available
to the Trustee or exercising any power given to the Trustee. Subject to Sections
7.3(e), 7.5(c) and 7.15, such direction may be exercised at any time by written
instruction of the Certificateholders pursuant to Section 5.3.

                  (b) Notwithstanding the foregoing, the Trustee shall not be
required to take any action under any Basic Document if the Trustee shall have
reasonably determined, or shall have been advised by counsel, that such action
is likely to result in liability on the part of the Trustee or is contrary to
the terms of any Basic Document or is otherwise contrary to law or the Series
Trust Agreement, or if the Trustee shall not have received indemnity
satisfactory to it as provided in Section 7.3(e). No provision of any Basic
Document shall require the Trustee to expend or risk funds or otherwise incur
any financial liability in the performance of any of its rights or powers under
any Basic Document, if the Trustee shall have reasonable grounds for believing
that repayment of such funds or adequate indemnity against such risk or
liability is not reasonably assured or provided to it.

                  (c) Whenever the Trustee is unable to decide between
alternative courses of action permitted or required by the terms of any Basic
Document, or is unsure as to the application, intent, interpretation or meaning
of any provision of the Series Trust Agreement or the other Basic Documents, the
Trustee shall promptly give notice (in such form as shall be appropriate under
the circumstances) to the Certificateholders requesting instruction as to the
course of action to be adopted, and, to the extent the Trustee acts in good
faith in accordance with any instruction received in accordance with Sections
5.2 and 5.3, or otherwise in accordance with the instructions of the Depositor
or the Certificateholders in accordance with the Series Trust Agreement, the
Trustee shall not be liable on account of such action to any Person. If the
Trustee shall not have received appropriate instructions within ten days of such
notice (or within such shorter period of time as reasonably may be specified in
such notice or may be necessary under the circumstances) it may, but shall be
under no duty to, take or refrain from taking such action which is consistent,
in its view, with the Series Trust Agreement or the other Basic Documents, and
as it shall deem to be in the best interests of the Certificateholders, and the
Trustee shall have no liability to any Person for any such action or inaction.

                  SECTION 7.6 Furnishing of Documents; Reports to
Certificateholders and DTC.

                  (a) The Trustee shall furnish to the Certificateholders,
promptly upon receipt of a written request therefor, duplicates or copies of all
reports, notices, requests, demands, certificates,

                                     - 29 -
<PAGE>   36
                                                                     EXHIBIT 4.2

financial statements and any other instruments furnished to the Trustee under
the Basic Documents. In addition, if required by TIA Section 313(a), within 60
days after December 31 of each year, the Trustee shall mail to (i) each
Certificateholder as required by TIA Section 313(c) and (ii) the Depositor, a
brief report dated as of such date that complies with TIA Section 313(a). A copy
of any report delivered pursuant to this Section 7.6(a) shall, at the time of
its mailing to Certificateholders and the Depositor, be filed by the Trustee
with the Commission and each stock exchange, if any, on which the Certificates
are listed. The Depositor shall notify the Trustee if and when the Certificates
are listed on any stock exchange.

                  (b) The Trustee shall within 90 days of an event described in
TIA Section 313(b) mail to (i) each Certificateholder as required by TIA Section
313(c) and (ii) the Depositor, a brief report dated as of such date that
complies with TIA Section 313(b). A copy of any report delivered pursuant to
this Section 7.6(b) shall, at the time of its mailing to Certificateholders and
the Depositor, be filed by the Trustee with the Commission and each stock
exchange, if any, on which the Certificates are listed. The Depositor shall
notify the Trustee if and when the Certificates are listed on any stock
exchange.

                  (c) So long as the Certificates are held in DTC's book-entry
only system, annual unaudited reports setting forth the amounts of payments on
the Certificates, and whether such amounts are principal or interest shall be
prepared by the Trustee and sent to DTC. To the extent the Depositor fails to
provide the Trustee with a copy of any report referred to in Section 4.1(a)(i)
or (iv) herein prior to the 10th Business Day preceding the applicable filing
date therefor as required by such provisions, the Trustee shall request the
Depositor to prepare and file such report and, if the Depositor fails to do so,
shall cause such report to be prepared and filed and the Depositor shall
reimburse the Trustee for its reasonable expenses incurred in connection
therewith. Any such expenses not reimbursed by the Depositor shall be borne by
the Certificateholders.

                  SECTION 7.7 Representations and Warranties of Trustee. The
Trustee hereby represents and warrants to the Depositor, for the benefit of the
Certificateholders, that:

                  (a) it is a banking corporation duly incorporated, validly
existing and in good standing under the laws of the State of New York;

                  (b) it has full power, authority and legal right to execute,
deliver and perform the Series Trust Agreement and the other Basic Agreements,
and has taken all necessary action to authorize the execution, delivery and
performance by it of the Series Trust Agreement and the other Basic Agreements;

                  (c) the execution, delivery and performance by it of the
Series Trust Agreement (i) will not violate any provision of any law or
regulation governing the powers of the Trustee or any order, writ, judgment or
decree of any court, arbitrator or governmental authority applicable to the
Trustee or any of its assets and (ii) will not violate any provision of the
corporate charter or by-laws of the Trustee;

                  (d) the Series Trust Agreement has been duly executed and
delivered by the Trustee and constitutes the legal, valid and binding agreement
of the Trustee, enforceable in accordance with its terms, except as
enforceability may be limited by bankruptcy, insolvency, reorganization, or
other similar laws affecting the enforcement of creditors' rights in general and
by general principles of equity, regardless of whether such enforceability is
considered in a proceeding in equity or at law; and

                  (e) the execution, delivery and performance by the Trustee of
the Series Trust Agreement will not require the authorization, consent or
approval of, the giving of notice to, the filing or registration with, or the
taking of any other action in respect of, any governmental authority or agency

                                     - 30 -
<PAGE>   37
                                                                     EXHIBIT 4.2

regulating the banking and corporate trust activities of banks or trust
companies in the jurisdiction in which the Trust was formed.

                  SECTION 7.8 Reliance; Advice of Counsel.

                  (a) The Trustee shall incur no liability to anyone in acting
upon any signature, instrument, notice, resolution, request, consent, order,
certificate, report, opinion, bond, facsimile transmission or other document or
paper reasonably believed by it to be genuine and reasonably believed by it to
be signed by the proper party or parties and need not investigate any fact or
matter in any such document. The Trustee may accept a certified copy of a
resolution of the board of directors or other governing body of any corporate
party as conclusive evidence that such resolution has been duly adopted by such
body and that the same is in full force and effect. As to any fact or matter the
method of the determination of which is not specifically prescribed herein, the
Trustee may for all purposes hereof rely on a certificate, signed by the
president or any vice president or by the treasurer or other authorized officers
of the relevant party, as to such fact or matter, and such certificate shall
constitute full protection to the Trustee for any action taken or omitted to be
taken by it in good faith in reliance thereon.

                  (b) In the exercise or administration of the trusts hereby
created and in the performance of its duties and obligations under the Series
Trust Agreement or the other Basic Documents, the Trustee: (i) may act directly
or through its agents, attorneys, custodians or nominees (including the granting
of a power of attorney to Responsible Officers or Authorized Signatories of the
Trustee to execute and deliver any Basic Documents, Certificate or other
documents related thereto on behalf of the Trustee) pursuant to agreements
entered into with any of them, and the Trustee shall not be liable for the
conduct or misconduct of such agents, attorneys, custodians or nominees if such
agents, attorneys, custodians or nominees shall have been selected by the
Trustee in good faith and with reasonable care and (ii) may consult with
counsel, accountants and other skilled professionals to be selected in good
faith and with reasonable care and employed by it. The Trustee shall not be
liable for anything done, suffered or omitted in good faith by it in accordance
with the opinion or advice of any such accountants or other such persons and not
contrary to the Series Trust Agreement or any other Basic Document.

                  SECTION 7.9 Trustee May Own Certificates. The Trustee in its
individual or any other capacity shall be permitted to become the owner or
pledgee of Certificates and may deal with the Depositor and the parties to the
Swap Agreement, any Related Agreement or any Credit Enhancement Agreement in
transactions in the same manner as it would have if it were not the Trustee,
subject to the limitations on the rights of the Trustee, if it is holding the
Certificates in its individual capacity, in voting on any demand, authorization,
direction, notice, consent or waiver hereunder, set forth in the definition of
"Outstanding" in Section 1.1 hereof.

                  SECTION 7.10 Compensation and Indemnity. The Trustee shall be
entitled to receive from the Depositor as compensation for the Trustee's
services hereunder, trustee's fees pursuant to a separate agreement between the
Trustee and the Depositor, and shall be reimbursed by the Depositor for all
reasonable expenses, disbursements and advances incurred or made by the Trustee
(including the reasonable compensation, disbursements and expenses of its
counsel and other persons not regularly in its employ). The Depositor shall
indemnify and hold harmless the Trustee and its successors, assigns, agents,
directors, officers and employees against any and all loss, liability or
reasonable expense (including attorney's fees) incurred by it in connection with
any legal action relating to the administration of this Trust and the
performance of its duties thereunder. The Trustee shall notify the Depositor
promptly of any claim for which it or any such Person may seek indemnity.
Failure by the Trustee to so notify the Depositor shall not relieve the
Depositor of its obligations hereunder except to the extent of any damages
caused by such delay. The Depositor need not reimburse any expense or indemnify
against any loss, liability or expense that is incurred by the Trustee through
the Trustee's own willful misfeasance,

                                     - 31 -
<PAGE>   38
                                                                     EXHIBIT 4.2

negligence or bad faith in the performance of the Trustee's duties under the
Series Trust Agreement or as a result of a breach or by reason of reckless
disregard of the Trustee's obligations and duties under the Series Trust
Agreement. The indemnities contained in this Section 7.10 shall survive the
resignation or termination of the Trustee or the termination of the Series Trust
Agreement.

                  Failure by the Depositor to pay, reimburse or indemnify the
Trustee shall not entitle the Trustee to any payment, reimbursement or
indemnification from the Trust unless otherwise specified in the Forepart, nor
shall such failure release the Trustee from the duties it is required to perform
under the Series Trust Agreement. Any unpaid, unreimbursed or unindemnified
amounts shall not be borne by the Trust and shall not constitute a claim against
the Trust, but shall be borne by the Trustee in its individual capacity unless
it is specified that the Trustee is entitled to payment, reimbursement or
indemnification from the Trust, in which event such amounts will be paid in
accordance with the priority of payments set out in the Forepart.

                  SECTION 7.11 Replacement of Trustee.

                  (a) The Trustee may resign at any time and be discharged from
the trusts hereby created by giving 30 days' prior written notice thereof to the
Depositor. The Depositor may appoint a successor Trustee by delivering a written
instrument, in duplicate, to the resigning Trustee and the successor Trustee. If
no successor Trustee shall have been appointed and have accepted appointment
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. The Depositor shall remove the Trustee if:

                  (i)   the Trustee shall cease to be eligible in accordance
         with the provisions of Section 7.14 and shall fail to resign after
         written request therefor by the Depositor;

                  (ii)  the Trustee shall be adjudged bankrupt or insolvent;

                  (iii) a receiver or other public officer shall be appointed or
         take charge or control of the Trustee or of its property or affairs for
         the purpose of rehabilitation, conservation or liquidation; or

                  (iv)  the Trustee shall otherwise be incapable of acting.

                  (b) If the Trustee resigns or is removed or if a vacancy
exists in the office of Trustee for any reason, the Depositor shall promptly
appoint a successor Trustee by written instrument, in duplicate (one copy of
which instrument shall be delivered to the outgoing Trustee so removed and one
copy to the successor Trustee) and shall pay all fees and expenses owed to the
outgoing Trustee.

                  (c) Unless the Trust has been completely liquidated and the
proceeds of the liquidation distributed to Certificateholders, any resignation
or removal of the Trustee and appointment of a successor Trustee pursuant to any
of the provisions of this Section 7.11 shall not become effective until a
written acceptance of appointment is delivered by the successor Trustee to the
outgoing Trustee and the Depositor and all fees and expenses due to the outgoing
Trustee are paid; provided that with respect to any of the events specified in
Section 7.11(a), the payment of the fees and expenses due to the outgoing
Trustee shall not be a condition for the removal of such Trustee and the
appointment of a successor Trustee. Any successor Trustee appointed pursuant to
this Section 7.11 shall be eligible to act in such capacity in accordance with
Section 7.14 and, following compliance with the preceding sentence, shall become
fully vested with all the rights, powers, duties and obligations of its
predecessor under the Series Trust Agreement, with like effect as if originally
named as Trustee. The Depositor shall provide notice

                                     - 32 -
<PAGE>   39
                                                                     EXHIBIT 4.2

within five (5) Business Days of the resignation or removal of the Trustee to
each Rating Agency and each Certificateholder.

                  (d) The predecessor Trustee shall deliver to the successor
Trustee all documents and statements and moneys held by it under the Series
Trust Agreement. The Depositor and the predecessor Trustee shall execute and
deliver such instruments and do such other things as may reasonably be required
for fully and certainly vesting and confirming in the successor Trustee all such
rights, powers, duties and obligations.

                  (e) Upon acceptance of appointment by a successor Trustee
pursuant to this Section 7.11, the Depositor shall mail notice of the successor
of such Trustee to all Certificateholders and each Rating Agency.

                  SECTION 7.12 Merger or Consolidation of Trustee. Any
corporation into which the Trustee may be merged or converted or with which it
may be consolidated, or any corporation resulting from any merger, conversion or
consolidation to which the Trustee shall be a party, or any corporation
succeeding to all or substantially all the corporate trust business of the
Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be eligible pursuant to Section 7.14, and without the
execution or filing of any instrument or any further act on the part of any of
the parties hereto; provided, however, that the Trustee shall mail notice of
such merger or consolidation to each Rating Agency.

                  SECTION 7.13 Appointment of Co-Trustee or Separate Trustee.

                  (a) Notwithstanding any other provisions of the Series Trust
Agreement, at any time, for the purpose of meeting any legal requirement of any
jurisdiction in which any part of the Trust Assets may at the time be located,
the Depositor and the Trustee acting jointly shall have the power and shall
execute and deliver all instruments to appoint one or more Persons approved by
the Trustee to act as co-trustee, jointly with the Trustee, or as separate
trustee or trustees, of all or any part of the Trust Assets, and to vest in such
Person in such capacity such title to the Trust Assets, or any part thereof,
and, subject to the other provisions of this Section 7.13, such powers, duties,
obligations, rights and trusts as the Depositor and the Trustee may consider
necessary or desirable. If the Depositor shall not have joined in such
appointment within fifteen (15) days after the receipt by it of a request so to
do, the Trustee alone shall have the power to make such appointment. No
co-trustee or separate trustee under the Series Trust Agreement shall be
required to meet the terms of eligibility as a successor trustee pursuant to
Section 7.14 and no notice of the appointment of any co-trustee or separate
trustee shall be required pursuant to Section 7.11.

                  (b) Each separate trustee and co-trustee shall, to the extent
permitted by law, be appointed and act subject to the following provisions and
conditions:

                  (i) all rights, power, duties and obligations conferred or
         imposed upon the Trustee shall be conferred upon and exercised or
         performed by the Trustee and such separate trustee or co-trustee
         jointly (it being understood that such separate trustee or co-trustee
         is not authorized to act separately without the Trustee joining in such
         act), except to the extent that under any law of any jurisdiction in
         which any particular act or acts are to be performed, the Trustee shall
         be incompetent or unqualified to perform such act or acts, in which
         event such rights, powers, duties and obligations (including the
         holding of title to the Trust Assets or any portion thereof in any such
         jurisdiction) shall be exercised and performed singly by such separate
         trustee or co-trustee, but solely at the direction of the Trustee;

                                     - 33 -
<PAGE>   40
                                                                     EXHIBIT 4.2

                  (ii) no separate trustee or co-trustee under the Series Trust
         Agreement shall be personally liable by reason of any act or omission
         of any other trustee under the Series Trust Agreement; and

                  (iii) the Depositor and the Trustee acting jointly may at any
         time accept the resignation of, or may remove, any separate trustee or
         co-trustee.

                  (c) Any notice, request or other writing given to the Trustee
shall be deemed to have been given to each of the then separate trustees and
co-trustees, as effectively as if given to each of them. Every instrument
appointing any separate trustee or co-trustee shall refer to the Series Trust
Agreement and the conditions of this Article. Each separate trustee and
co-trustee, upon its acceptance of the trusts conferred, shall be vested with
the estates or property specified in its instrument of appointment, either
jointly with the Trustee or separately, as may be provided therein, subject to
all the provisions of the Series Trust Agreement, specifically including every
provision of the Series Trust Agreement relating to the conduct of, affecting
the liability of, or affording protection to, the Trustee. Each such instrument
shall be filed with the Trustee and a copy thereof given to the Depositor.

                  (d) Any separate trustee or co-trustee may at any time appoint
the Trustee as its agent or attorney-in-fact with full power and authority, to
the extent not prohibited by law, to do any lawful act under or in respect of
the Series Trust Agreement on its behalf and in its name. If any separate
trustee or co-trustee shall die, become incapable of acting, resign or be
removed, all of its estates, properties, rights, remedies and trusts shall vest
in and be exercised by the Trustee, to the extent permitted by law, without the
appointment of a new or successor trustee.

                  SECTION 7.14 Eligibility Requirements for Trustee.

                  (a) The Trustee shall at all times satisfy the requirements of
TIA Section 310(a). The Trustee shall at all times be a bank, trust company or
corporation not an Affiliate of the Depositor (but may have normal banking
relationships with the Depositor or any Underlying Securities Issuer or any
party under the Swap Agreement, any Related Agreement or any Credit Enhancement
Agreement and their respective Affiliates), which (i) is organized and doing
business under the laws of any State or the United States; (ii) is authorized
under such laws to exercise corporate trust powers; (iii) has a combined capital
and surplus of at least $50,000,000; (iv) is subject to supervision or
examination by federal or state authority; and (v) has (or has a parent which
has) a long-term unsecured debt rating of at least BBB- by Standard & Poor's and
at least Baa3 by Moody's (or such other rating as may be specified in the
Forepart). If such corporation shall publish reports of condition at least
annually, pursuant to law or to the requirements of the aforesaid supervising or
examining authority, then for the purpose of this Section 7.14, 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. If at any time the Trustee shall cease to be eligible in accordance
with the provisions of this Section 7.14, the Trustee shall resign immediately
in the manner and with the effect specified in Section 7.11.

                  (b) The Trustee shall comply with TIA Section 310(b);
provided, that if the exclusion requirements set forth in TIA Section 310(b)(1)
are met, any other trust agreement under which other securities are outstanding
that evidence beneficial ownership interests in obligations of any Underlying
Securities Issuer shall be excluded from the operation of TIA Section 310(b)(1).

                  SECTION 7.15 Voting of the Underlying Securities.

                  (a) The Trustee shall exercise any voting or consent rights
with respect to the Underlying Securities as directed in writing by
Certificateholders holding Certificates representing at least

                                     - 34 -
<PAGE>   41
                                                                     EXHIBIT 4.2

a majority of the Outstanding Certificate Principal Balance. In the absence of
any written direction from such Certificateholders, the Trustee shall not
exercise any voting or consent rights with respect to the Underlying Securities.
Notwithstanding the foregoing, if the Trust is intended to qualify as a grantor
trust, the Trustee shall not exercise such rights if the exercise thereof (or
the action with respect to which such rights are so elicited) would cause the
Trust to fail to qualify as a grantor trust (or fail to have such other
qualification as may be specified in the Forepart). As a condition of exercising
any such rights, if the Trust is intended to qualify as a grantor trust, the
Trustee may require an opinion of counsel to the effect that exercising such
rights would not cause the Trust to fail to qualify as a grantor trust (or fail
to have such other qualification as may be specified in the Forepart).

                  (b) The Trustee may, subject to the provisions of Section
7.15(a), vote and give consents and waivers in respect of the Underlying
Securities as permitted by DTC and except as provided herein. In the event that
the Trustee receives a request from the Underlying Securities Issuer for its
consent to any amendment, modification or waiver of the Underlying Securities or
any document relating thereto, or receives any other solicitation for any action
with respect to the Underlying Securities, the Trustee shall mail a notice of
such proposed amendment, modification, waiver or solicitation to each
Certificateholder of record as of such date. The Trustee shall request
instructions from the Certificateholders as to whether or not to consent to or
vote to accept such amendment, modification, waiver or solicitation. The Trustee
shall consent or vote, or refrain from consenting or voting, in the same
proportion (based on the relative Certificate Principal Balances) as the
Certificates were actually voted or not voted by the Certificateholders thereof
as of a date determined by the Trustee prior to the date on which such consent
or vote is required.

                  (c) Notwithstanding anything to the contrary herein, the
Trustee shall at no time vote or consent to any matter:

                  (i) unless such vote or consent (or the action with respect to
         which such vote or consent is solicited) would not, based on an opinion
         of counsel, alter the classification of the Trust as either a grantor
         trust, or such other classification as may be specified in the
         Forepart, for federal income tax purposes;

                  (ii) that would alter the timing or amount of any payment on
         the Trust Assets, including, without limitation, any demand to
         accelerate the Underlying Securities, except upon the occurrence of an
         Underlying Securities Event of Default, unless Certificateholders
         representing 100% of the aggregate Voting Rights of the Certificates
         consent to the Trustee voting in favor of or consenting to that matter;
         or

                  (iii) that would result in the exchange or substitution of any
         of the outstanding Underlying Securities pursuant to a plan for the
         refunding or refinancing of such Underlying Securities, except in the
         event of an Underlying Securities Event of Default, unless
         Certificateholders representing 100% of the aggregate Voting Rights of
         the Certificates consent to the Trustee voting in favor of or
         consenting to that matter.

                  The Trustee shall have no liability for any failure to act
resulting from any Certificateholder's late return of, or failure to return,
directions requested by the Trustee from the Certificateholders.

                  (d) In the event that an offer is made by the Underlying
Securities Issuer to issue new obligations in exchange and substitution for any
of the Underlying Securities, pursuant to a plan for the refunding or
refinancing of the Underlying Securities, or any other offer is made for the
Underlying Securities, the Trustee shall notify the Certificateholders of such
offer as promptly as practicable. The

                                     - 35 -
<PAGE>   42
                                                                     EXHIBIT 4.2

Trustee must reject any such offer unless (a) an Underlying Securities Event of
Default has occurred, (b) the Trustee is directed by the unanimous affirmative
vote of the Certificateholders to accept such offer and (c) the Trustee has
received an opinion of counsel to the effect that any such exchange will not (i)
alter the classification of the Trust as a grantor trust, or such other
classification as may be specified in the Forepart, for federal income tax
purposes and (ii) result in a deemed exchange of the Underlying Securities or
the Certificates for federal income tax purposes].

                  (e) If an Underlying Securities Event of Default occurs and is
continuing, and if directed by all the holders of the then Outstanding
Certificates, the Trustee shall, subject to the provisions of Section 7.15(a),
vote the Underlying Securities in favor of directing, or take such other action
as may be appropriate to direct, the trustee of the Underlying Securities to
declare the unpaid principal balance of the Underlying Securities plus accrued
and unpaid interest thereon to be due and payable.

                  SECTION 7.16 Annual Statement. The Trustee shall deliver to
the Depositor and the Trustee, for the benefit of the Certificateholders, an
annual statement signed by two officers of the Trustee to the effect that the
Trustee has fulfilled its obligations under the Series Trust Agreement
throughout the preceding year with respect to the Certificates. Copies of such
statement shall be furnished without charge to Certificateholders upon written
request to the Trustee at the address for notices to the Trustee specified
herein.

                                  ARTICLE VIII
                            TERMINATION OF AGREEMENT

                  SECTION 8.1 Termination of Agreement.

                  (a) The Series Trust Agreement (other than Section 7.10) shall
terminate and the Trust shall dissolve, wind-up and terminate and be of no
further force or effect 60 days after the earlier of the (i) final distribution
by the Trustee of all moneys or other property or proceeds of the Trust Assets
in accordance with the terms of Article VI or Section 8.2 of the Series Trust
Agreement and (ii) the distribution by the Trustee in accordance with the terms
of Article VI or Section 8.2 of the Series Trust Agreement of the proceeds of
the purchase of all the Trust Assets by the party entitled to do so, under the
circumstances and in the manner described in the Forepart. The bankruptcy,
liquidation, dissolution, death or incapacity of any Certificateholder shall not
(A) operate to terminate the Series Trust Agreement or the Trust, (B) entitle
such Certificateholder's legal representatives or heirs to claim an accounting
or to take any action or proceeding in any court for a partition or winding up
of all or any part of the Trust or the Trust Assets or (C) otherwise affect the
rights, obligations and liabilities of the parties hereto.

                  (b) Neither the Depositor nor any Certificateholder shall be
entitled to revoke or terminate the Trust.

                  (c) Notice of any termination of the Trust, specifying the
Distribution Date upon which the Certificateholders shall surrender their
Certificates to the Trustee for payment of the final distribution and
cancellation, shall be given by the Trustee by letter to the Certificateholders
mailed in accordance with Section 10.3 below stating: (i) the Distribution Date
upon or with respect to which final payment of the Certificates shall be made
upon presentation and surrender of the Certificates at the office of the Trustee
therein designated; (ii) the amount of any such final payment; (iii) that the
Record Date otherwise applicable to such Distribution Date is not applicable,
payments being made only upon presentation and surrender of the Certificates at
the office of the Trustee therein specified; (iv) the office where Definitive
Certificates should be surrendered to the Trustee; and (v) that after such
Distribution Date, no further periodic distributions shall accrue on the
Certificates. The Trustee shall give such notice to the Certificate Registrar
(if other than the Trustee) at the time such notice is given to
Certificateholders.

                                     - 36 -
<PAGE>   43
                                                                     EXHIBIT 4.2

Upon presentation and surrender of the Certificates, the Trustee shall cause to
be distributed to Certificateholders amounts distributable on such Distribution
Date pursuant to Section 6.2.

                  (d) If all of the Certificateholders shall not surrender their
Certificates for cancellation within six months after the date specified in the
above mentioned written notice, the Trustee shall give a second written notice
to the remaining Certificateholders to surrender their Certificates for
cancellation and receive the final distribution with respect thereto. If within
one year after the second notice all the Certificates shall not have been
surrendered for cancellation, the Trustee may take appropriate steps, or may
appoint an agent to take appropriate steps, to contact the remaining
Certificateholders concerning surrender of their Certificates, and the cost
thereof shall be paid out of the funds and other assets that shall remain
subject to the Series Trust Agreement. Subject to applicable laws with respect
to escheat of funds, any funds remaining in the Trust after exhaustion of such
remedies in the preceding sentence shall be deemed property of the Depositor and
distributed by the Trustee to the Depositor, and the Certificateholders shall
have no claim against the Trustee or the Depositor with respect thereto.

                  SECTION 8.2  Liquidation of Trust Assets Upon Certain Events.

                  (a) Upon the occurrence of a Trust Liquidation Event, the
Trustee shall, upon receipt of notice thereof from the Swap Counterparty or the
counterparty to any Related Agreement or any Credit Enhancement Agreement, or
upon the Trustee obtaining actual knowledge of any occurrence of a Trust
Liquidation Event, promptly give notice of such occurrence to the
Certificateholders.

                  (b) Upon the occurrence of a Trust Liquidation Event, the
Trustee shall cause the Trust Assets to be liquidated in the manner set forth in
the Forepart. The proceeds of such liquidation shall be credited to the
Collection Account and the Trustee shall:

                  (i) (A) withdraw from the Collection Account such amounts as
         are necessary to satisfy the expenses of the Trust, to the extent not
         paid by the Depositor pursuant to Section 7.10 hereof, (B) withdraw
         from the Collection Account and remit first to the Swap Counterparty,
         then to the counterparty to any Related Agreement, and then to the
         counterparty to any Credit Enhancement Agreement (in accordance to any
         priority of payments specified in the Forepart), any amounts due to
         such Person from the Trust on such date pursuant to the terms of the
         Swap Agreement, the relevant Related Agreement or the relevant Credit
         Enhancement Agreement (net of amounts due to the Trust from such Person
         on such date), and (C) retain in the Collection Account any amounts due
         to the Trust and received from such Person on such date pursuant to the
         terms of the Swap Agreement, the relevant Related Agreement or the
         relevant Credit Enhancement Agreement.

                  (ii) after paying any amounts due under the Swap Agreement,
         any Related Agreement or any Credit Enhancement Agreement as provided
         in Section 8.2(b)(i) above, distribute from the Collection Account to
         the Certificateholders, on a pro rata basis, all amounts then remaining
         on deposit in the Collection Account, including any payments which the
         Trustee receives in respect of the Swap Agreement, any Related
         Agreement or any Credit Enhancement Agreement.

                  (c) The proceeds and the timing of the sale of the Trust
Assets by the Trustee shall be at the risk of the Swap Counterparty, the
counterparty to any Related Agreement or any Credit Enhancement Agreements and
the Certificateholders and without recourse to the Trustee, who shall execute
such sales based on advice obtained pursuant to Section 8.2(d) below and apply
the proceeds of the sale as set forth in Section 8.2(b).

                                     - 37 -
<PAGE>   44
                                                                     EXHIBIT 4.2

                  (d) For purposes of any determinations required by this
Section 8.2, including (i) the making of any Market Quotation determination or
Loss determination by the Trust under the Swap Agreement and (ii) advice on the
pricing and timing of sales of the Trust Assets, the Trustee shall be entitled
to receive and conclusively rely on certifications provided by an investment
bank selected in good faith and in a reasonable manner by the Trustee and will
not be subject to any liability for such reliance thereon.

                                   ARTICLE IX
                                   AMENDMENTS

                  SECTION 9.1 Amendments Without Consent of Certificateholders.
The Series Trust Agreement may be amended by the Depositor and the Trustee
without the consent of any of the Certificateholders (but with prior notice to
the Rating Agency), to (a) cure any error or ambiguity, (b) correct or
supplement any provision in the Series Trust Agreement that may be defective or
inconsistent with any other provision in the Series Trust Agreement, (c) add or
supplement any credit enhancement for the benefit of the Certificateholders
(except that if any such addition affects any Class of Certificateholders
differently from any other Class of Certificateholders, then the Depositor must
obtain an Opinion of Counsel stating that the addition will not have a material
adverse effect on the interests of any affected Class of Certificateholders) and
provided that any such addition shall not, as evidenced by an Opinion of
Counsel, adversely affect the classification of the Trust for federal income tax
purposes, (d) add to the covenants, restrictions or obligations of the Depositor
or the Trustee for the benefit of the Certificateholders, (e) evidence and
provide for the acceptance of the appointment of a successor Trustee with
respect to the Trust Assets and add to or change any provisions as shall be
necessary to facilitate the administration of the trusts hereunder by more than
one trustee pursuant to Article VII, and (f) add, change or eliminate any other
provision of the Series Trust Agreement in any manner that shall not, as
evidenced by an Opinion of Counsel, either (i) adversely affect in any material
respect the interests of the Certificateholders or (ii) affect the tax status of
the Trust or result in a sale or exchange of any Certificate for tax purposes,
provided that, in each case, the Trustee has received written confirmation from
each Rating Agency that the Rating Agency Condition will be satisfied if such
amendment is made and (g) to comply with any requirements imposed by the Code.

                  SECTION 9.2 Amendments With Consent of Certificateholders;
Waivers.

                  (a) The Series Trust Agreement may be amended from time to
time by the Depositor and the Trustee with the consent of Certificateholders
whose Certificates evidence more than a majority of the Certificate Principal
Balance as of the close of business on the preceding Distribution Date (which
consent, whether given pursuant to this Section 9.2 or pursuant to any other
provision of the Series Trust Agreement, shall be conclusive and binding on such
Person and on all future holders of such Certificates and of any Certificates
issued upon the transfer thereof or in exchange thereof or in lieu thereof
whether or not notation of such consent is made upon the Certificates), and upon
satisfaction of the Rating Agency Condition, for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
the Series Trust Agreement, or of modifying in any manner the rights of the
Certificateholders; provided that if the amendment would materially adversely
affect any Class of Certificateholders or the rating of any Class of
Certificates, the required percentage of votes shall be the number specified in
the Forepart; and provided further, however, that no such amendment shall (a)
reduce in any manner the amount of, or accelerate or delay the timing of,
collections of payments on Trust Assets or distributions that shall be required
to be made on any Certificate, (b) reduce the aforesaid percentage required to
consent to any such amendment, (c) as evidenced by an Opinion of Counsel,
adversely affect the classification of the Trust for federal income tax
purposes, or (d) cause the termination of the Trust, without, in each case, the
consent of all Certificateholders.

                                     - 38 -
<PAGE>   45
                                                                     EXHIBIT 4.2

                  (b) Unless otherwise specified in the Forepart, the Required
Percentage--Waiver, to (a) waive, with respect to Certificates of the same
Class, compliance by the Depositor or the Trustee with any restrictive provision
of the Series Trust Agreement before the time for compliance, and (b) waive any
past default under the Series Trust Agreement with respect to Certificates of
the same Class, shall be Certificateholders evidencing more than 50% of the
Outstanding Certificates of the same Class, except for a default in the failure
to distribute amounts received as principal of and any premium or any interest
on any Certificate and a default in respect of a covenant or provision the
modification or amendment, each of which would require the consent of the holder
of each affected Outstanding Certificate.

                  SECTION 9.3 Form of Amendments.

                  (a) Promptly after the execution of any amendment, supplement
or consent pursuant to Section 9.1 or 9.2, the Trustee shall furnish written
notification of such amendment or consent to each Certificateholder.

                  (b) It shall not be necessary for the consent of
Certificateholders pursuant to Section 9.2 to approve the particular form of any
proposed amendment or consent, but it shall be sufficient if such consent shall
approve the substance thereof. The manner of obtaining such consents (and any
other consents of Certificateholders provided for in the Series Trust Agreement
or in any other Basic Document) and of evidencing the authorization of the
execution thereof by Certificateholders shall be subject to such reasonable
requirements as the Trustee may prescribe.

                  (c) Prior to the execution of any amendment to the Series
Trust Agreement, the Trustee shall be entitled to receive and rely upon an
Opinion of Counsel stating that the execution of such amendment is authorized or
permitted by the Series Trust Agreement. The Trustee may, but shall not be
obligated to, enter into any such amendment which affects the Trustee's own
rights, duties or immunities under the Series Trust Agreement or otherwise.

                                    ARTICLE X
                                  MISCELLANEOUS

                  SECTION 10.1 Certificateholders Have No Legal Title to Trust
Property. The Certificateholders shall not have legal title to any part of the
Trust Assets. The Certificateholders shall be entitled to receive distributions
with respect to their beneficial ownership interests in the Trust Assets only in
accordance with Articles VI and VIII. No transfer, by operation of law or
otherwise, of any right, title or interest in the Trust Assets shall operate to
terminate the Series Trust Agreement or the trusts hereunder or entitle any
transferee to an accounting or to the transfer to it of legal title to any part
of the Trust Assets.

                  SECTION 10.2 Limitations on Rights of Others. The provisions
of the Series Trust Agreement are solely for the benefit of the Trustee, the
Depositor, the Swap Counterparty, the parties to the other Basic Documents and
the Certificateholders, and nothing in the Series Trust Agreement, whether
express or implied, shall be construed to give to any other Person any legal or
equitable right, remedy or claim in the Trust Assets or under or in respect of
the Series Trust Agreement or any covenants, conditions or provisions contained
herein.

                  SECTION 10.3  Notices.

                  (a) All demands, notices and communications upon or to the
Depositor or the Trustee or any Rating Agency under the Series Trust Agreement
shall be in writing, personally delivered, sent by electronic facsimile (with
hard copy to follow via first class mail) or mailed by certified mail-

                                     - 39 -
<PAGE>   46
                                                                     EXHIBIT 4.2

return receipt requested, and shall be deemed to have been duly given upon
receipt (i) in the case of the Depositor, to the Depositor at the following
address: Corporate Asset Backed Corporation, 400 West Main Street, Babylon, New
York 11702, Attention: Andrew L. Stidd, (ii) in the case of the Trust or the
Trustee, to the Trustee at its Corporate Trust Office, (iii) in the case of any
Rating Agency, at the applicable address set forth in the Forepart, and (iv) in
the case of any other Person, to such other Person at such other address as
shall be designated by such Person in a written notice to the other parties to
the Series Trust Agreement.

                  (b) Any notice required or permitted to be given to a
Certificateholder shall be given by first-class mail, postage prepaid, at the
address of such Certificateholder as shown in the Certificate Register (which
shall be DTC for any Class of Book-Entry Certificates). Any notice so mailed
within the time prescribed in the Series Trust Agreement shall be conclusively
presumed to have been duly given, whether or not the Certificateholder receives
such notice.

                  SECTION 10.4 Severability. If any one or more of the
covenants, agreements, provisions or terms of the Series Trust Agreement shall
be for any reason whatsoever held invalid, then such covenants, agreements,
provisions or terms shall be deemed severable from the remaining covenants,
agreements, provisions or terms of the Series Trust Agreement and shall in no
way affect the validity or enforceability of the other provisions of the Series
Trust Agreement or of the Certificates or the rights of the Certificateholders
thereof.

                  SECTION 10.5 Counterparts. The Series Trust Agreement may be
executed by the parties hereto in separate counterparts, each of which when so
executed and delivered shall be an original, but all such counterparts shall
together constitute one and the same instrument.

                  SECTION 10.6 Successors and Assigns. All covenants and
agreements contained herein shall be binding upon, and inure to the benefit of,
the Depositor, the Trustee and each Certificateholder and their respective
successors and permitted assigns, all as herein provided. Any request, notice,
direction, consent, waiver or other instrument or action by a Certificateholder
shall bind the successors and assigns of such Certificateholder.

                  SECTION 10.7 No Petition Covenant. Notwithstanding any prior
termination of the Series Trust Agreement, the Trustee, each Certificateholder
and each Certificate Owner shall not, prior to the date which is one year and
one day after the termination of the Series Trust Agreement, acquiesce, petition
or otherwise invoke or cause the Trust or the Depositor to invoke the process of
any court or governmental authority for the purpose of commencing or sustaining
a case against the Trust or the Depositor under any federal or state bankruptcy,
insolvency or similar law or appointing a receiver, liquidator, assignee,
trustee, custodian, sequestrator or other similar official of the Trust or the
Depositor or any substantial part of its property, or ordering the winding up or
liquidation of the affairs of the Trust or the Depositor.

                  SECTION 10.8 No Recourse. Each Certificateholder by accepting
a Certificate acknowledges that such Certificateholder's Certificates represent
beneficial interests in the Trust only and do not represent interests in or
obligations of the Depositor, the Trustee, or any Affiliate thereof and no
recourse may be had against such parties or their assets, except as may be
expressly set forth or contemplated in the Series Trust Agreement, the
Certificates or the other Basic Documents. The Trustee shall have no recourse to
the Underlying Securities.

                  SECTION 10.9 Headings. The headings of the various Articles
and Sections herein are for convenience of reference only and shall not define
or limit any of the terms or provisions hereof.

                                     - 40 -
<PAGE>   47
                                                                     EXHIBIT 4.2

                  SECTION 10.10 Governing Law. THIS AGREEMENT SHALL BE CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REFERENCE TO ANY
CONFLICT OF LAW PROVISION THAT WOULD REQUIRE THE APPLICATION OF THE SUBSTANTIVE
LAW OR ANOTHER STATE, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES
HEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

                  SECTION 10.11  Conflict with Trust Indenture Act.

                  (a) If any provision of the Series Trust Agreement limits,
qualifies or conflicts with a provision of the TIA that is required to be
included in the Series Trust Agreement by any of the provisions of the TIA, such
imposed provision shall control. If any provision of the Series Trust Agreement
modifies or excludes any provision of the TIA that may be so modified or
excluded, the latter provision shall be deemed to apply to the Series Trust
Agreement as so modified or excluded, as the case may be.

                  (b) The provisions of TIA Sections 310 through 317 that impose
duties on any Person (including the provisions automatically deemed included
herein unless expressly excluded by the Series Trust Agreement) are a part of
and govern the Series Trust Agreement, whether or not physically contained
herein.

                                     - 41 -

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