Document:

Credit and Restructuring Agreement

 Exhibit 10.1 
  
  
 CREDIT AND RESTRUCTURING AGREEMENT

 BETWEEN 
 DIGITAL LIGHTWAVE, INC. 
 AND 
 OPTEL CAPITAL, LLC 
 APRIL 4, 2008 
  
  

 CREDIT AND RESTRUCTURING AGREEMENT 
 This Credit and Restructuring Agreement (this “Agreement”) is entered into as of April 4, 2008, by and between Digital Lightwave,
Inc., a Delaware corporation (“Borrower”), and Optel Capital, LLC, a Delaware limited liability company (“Lender”). 
 RECITALS 
 A. Whereas Lender has advanced funds to Borrower pursuant to those several secured
promissory notes listed on Schedule A attached hereto (the “Prior Secured Promissory Notes”); 
 B. Whereas as of the
date hereof, (i) the total outstanding principal amount owed by Borrower to Lender pursuant to the Prior Secured Promissory Notes equals $27,945,177 (collectively, the “Outstanding Principal”), all of which is currently due and
payable in full upon demand by Lender at any time, and (ii) the total outstanding accrued and unpaid interest thereon equals $7,708,983 (the “Outstanding Interest,” and collectively with the Outstanding Principal, the
“Outstanding Debt”); 
 C. Whereas, Borrower currently has insufficient capital resources to satisfy the Outstanding Debt
and desires that Lender: (1) restructure the Outstanding Debt, and (2) make additional credit accommodations available to Borrower in the form of one or more loans to be used by Borrower to finance its on-going general corporate purposes
in an aggregate principal amount not to exceed $2,500,000 (the “New Commitment”); and 
 D. Whereas, in order to induce
Lender to restructure the Outstanding Debt and provide Borrower with the New Commitment, Borrower desires to make the Outstanding Debt and New Commitment convertible into Borrower’s Common Stock on the terms and subject to the conditions set
forth herein. 
 AGREEMENT 
 In consideration of the mutual promises contained herein and other good and valuable consideration, receipt of which is hereby acknowledged, the parties to this Agreement agree as follows: 
 1. Definitions. As used in this Agreement, the following terms have the following meanings: 
 “Accredited Investor” means an accredited investor as defined in Rule 501(a) of Regulation D promulgated under the Securities Act.

 “Affiliate” means, with respect to any Person, a relative, partner, shareholder, director, officer, or employee of such
Person, or any parent or subsidiary of such Person, or any Person controlling, controlled by or under common control with such Person. 
 “Borrower” has the meaning set forth in the introductory paragraph. 

 “Borrower’s Address” means 5775 Rio Vista Drive, Clearwater, FL 33760. 

“Business Day” means a day other than a Saturday or a Sunday on which financial institutions in Clearwater, Florida are open for
business. 
 “Bylaws of Borrower” means the bylaws of the Borrower, as amended from time to time. 
 “Cash” means all cash, money, currency, and liquid funds, wherever held, in which Borrower now or hereafter acquires any right, title,
or interest. 
 “Certificate of Incorporation” means the certificate of incorporation of Borrower, as amended from time to
time. 
 “Change of Control” means a sale of all or substantially all of Borrower’s assets, or any merger or
consolidation of Borrower with or into another corporation; other than a merger or consolidation in which the holders of the shares of capital stock of Borrower outstanding immediately prior to such transaction continue to hold (either by the voting
securities remaining outstanding or by their being converted into voting securities of the surviving entity) more than 50% of the total voting power represented by the voting securities of Borrower, or such surviving entity, outstanding immediately
after such transaction. 
 “Closing” means the action, execution and delivery of such agreements and other instruments and
documents as necessary or appropriate to effect the transactions contemplated by this Agreement and the other Credit Documents in accordance with the terms hereof and thereof. 
 “Closing Date” has the meaning set forth in Section 2.4. 
 “Collateral” has the meaning set forth in the Security Agreement. 
 “Common Stock” means the common stock, par value $0.0001 per share, of Borrower. 
 “Conversion Feature” has the meaning set forth in Section 2.3(b). 
 “Conversion Price” means, for any Promissory Note, the greater of (a) $0.01, or (b) one hundred percent (100%) of the
average of the daily volume-weighted average price of Common Stock quoted or traded on the over-the-counter market as reported by Pink Sheets LLC (the “Pink Sheets”) (or, if the Common Stock is not quoted or traded on the Pink
Sheets at the time of conversion, such other primary market on which the Common Stock is quoted or traded) during the period of five consecutive trading days ending on the date immediately prior to the date of the conversion of such Promissory Note,
from time to time. 
 “Credit Documents” means and includes this Agreement, each New Commitment Note, the Secured
Convertible Promissory Note, the Security Agreement, and the Registration Rights Agreement and all other documents, instruments and agreements delivered by Borrower in connection with any of the foregoing. 
  

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 “Disinterested Stockholders” means those stockholders of Borrower that are not
Affiliates of Lender and are not otherwise interested parties in any of the transactions set forth herein. 
 “Disinterested
Stockholder Approval” has the meaning set forth in Section 2.3(b). 
 “Equipment” means any
“Equipment,” as such term is defined in the UCC, now owned or hereafter acquired by Borrower or in which Borrower now holds or hereafter acquires any interest and any and all additions, upgrades, substitutions and replacements of any of
the foregoing, together with all attachments, components, parts, equipment and accessories installed thereon or affixed thereto, now owned or hereafter acquired by Borrower or in which Borrower now holds or hereafter acquires an interest.

 “Governmental Authority” means any domestic or foreign national, state or local government, any political subdivision
thereof, any department, agency, authority or bureau of any of the foregoing, or any other entity exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 
 “Intellectual Property” means, collectively, all rights, priorities and privileges of Borrower relating to intellectual property,
whether arising under United States, multinational or foreign laws or otherwise, including copyrights, copyright licenses, inventions, patents, patent licenses, trademarks, trademark licenses and trade secrets (including customer lists), domain
names, Web sites and know-how. 
 “Lien” means any mortgage, deed of trust, pledge, hypothecation, assignment for security,
security interest, encumbrance, levy, lien or charge of any kind, whether voluntarily incurred or arising by operation of law or otherwise, against any property, any conditional sale or other title retention agreement, any lease in the nature of a
security interest, and the filing of any financing statement (other than a precautionary financing statement with respect to a lease that is not in the nature of a security interest) under the UCC or comparable law of any jurisdiction. 

“Material Adverse Effect” means any change, effect, event, occurrence or development that (i) results or is reasonably likely to
result in a reduction in annual EBIT (earnings before interest and taxes) of Borrower and its subsidiaries, on a consolidated basis, of $500,000 or more; (ii) precludes Borrower from performing its non-monetary Obligations in accordance with
this Agreement and the other Credit Documents; (iii) causes a reduction in the value of the Collateral by more than $500,000 from its value on the date hereof; or (iv) causes the loss of Lender’s security interest in the Collateral or
Lender’s perfection or priority of such security interests; provided, however, that, in no event shall any of the following, alone or in combination, be deemed to constitute, nor taken into account in determining whether a Material Adverse
Effect has occurred: (i) the announcement or pendency of the transactions contemplated by this Agreement and the other Credit Documents, (ii) compliance with the terms and conditions of this Agreement and the other Credit Documents,
(iii) any change in accounting requirements or principles or any change in applicable laws, rules or regulations or the interpretation thereof, (iv) any litigation or other similar proceeding arising out of or in connection with this
Agreement or the other Credit Documents or the transactions contemplated hereby and thereby, (v) any change, event, occurrence or development arising from or relating to 

  

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general business or economic conditions, or (vi) any change, event, occurrence or development relating to or affecting the technology industry
generally. For the avoidance of doubt, if Borrower’s actual annual EBIT for any 12-month period reflects a shortfall of $500,000 or more from the projected EBIT set forth in any of the projections delivered to the Lender pursuant to
Section 5.11, such shortfall, in and of itself, shall not be deemed to constitute a Material Adverse Effect. 
 “Maturity
Date” means the earlier to occur of (i) March 31, 2010, and (ii) the date on which written demand is made by Lender in accordance with Section 2.3(c). 
 “New Commitment” has the meaning set forth in Recital C. 
 “New Commitment Loans” has the meaning set forth in Section 2.1(a). 
 “New Commitment Note” has the meaning set forth in Section 2.1(b). 
 “Obligations” means, collectively, the Restated Debt, the New Commitment, all other advances, debts, liabilities, obligations,
guaranties, covenants, duties and indebtedness at any time owing by Borrower to Lender, whether evidenced by this Agreement, the Promissory Notes, any other Credit Document or any note or other instrument or document, whether arising from an
extension of credit, loan, guaranty, indemnification or otherwise, whether direct or indirect (including, without limitation, those acquired by assignment and any participation by Lender in Borrower’s debts owing to others), absolute or
contingent, due or to become due, including without limitation all interest, fees, charges, expenses, attorneys’ fees and accountants’ fees chargeable to Borrower or payable by Borrower thereunder. 
 “Outstanding Interest” has the meaning set forth in Recital B. 
 “Outstanding Principal” has the meaning set forth in Recital B. 
 “Outstanding Debt” has the meaning set forth in Recital B. 
 “Permitted Liens” has the meaning set forth in the Security Agreement. 
 “Person” means an individual, a partnership, a corporation (including a business trust), a joint stock company, an unincorporated
association, a limited liability company, a joint venture, a trust or other entity or a Governmental Authority. 
 “Prior Secured
Promissory Notes” has the meaning set forth in Recital A. 
 “Promissory Notes” means, collectively, the New
Commitment Note and the Secured Convertible Promissory Note. 
 “Proposals” has the meaning set forth in Section 7.1.

 “Registration Rights Agreement” has the meaning set forth in Section 5.6. 
 “Requirement of Law” applicable to any Person means (i) the articles or certificate of incorporation and by-laws, partnership
agreement or other organizational or 

  

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governing documents of such Person, (ii) any rule of any Governmental Authority applicable to such Person, (iii) any license, permit, approval or
other authorization granted by any Governmental Authority to or for the benefit of such Person or (iv) any judgment, decision or determination of any Governmental Authority or arbitrator, in each case applicable to or binding upon such Person
or any of its property or to which such Person or any of its property is subject. 
 “Restated Debt” has the meaning set
forth in Section 2.2(a). 
 “Schedules” means and includes all schedules attached hereto, including the Schedule of
Exceptions. 
 “Secretary Certificate” has the meaning set forth in Section 5.9. 
 “Secured Convertible Promissory Note” has the meaning set forth in Section 2.2(b). 
 “Security Agreement” has the meaning set forth in Section 5.3. 
 “Securities” means collectively the Promissory Notes and the shares of Common Stock issuable upon conversion thereof. 
 “Securities Act” means the Securities Act of 1933, as amended. 
 “Special Committee” means the special committee of the Board of Directors of Borrower consisting of Gerald A. Fallon and Peter H.
Collins. 
 “Stockholder Meeting” means the 2009 annual meeting of stockholders of Borrower. 
 “Taxes” has the meaning set forth in Section 2.5. 
 “UCC” means the Uniform Commercial Code as the same may, from time to time, be in effect in the State of Florida; provided, that in the event that, by reason of mandatory provisions of law, any
or all of the attachment, perfection or priority of, or remedies with respect to, Secured Party’s Lien on any Collateral is governed by the Uniform Commercial Code as enacted and in effect in a jurisdiction other than the State of Florida, the
term “UCC” shall mean the Uniform Commercial Code as enacted and in effect, from time to time, in such other jurisdiction solely for purposes of the provisions thereof relating to such attachment, perfection, priority or remedies and for
purposes of definitions related to such provisions. 
 2. New Commitment and Restructuring of Outstanding Debt. 
 2.1 New Commitment. 
 (a)
Subject to the terms and conditions of this Agreement, the Lender agrees to advance to Borrower from time to time during the period from and including the Closing Date to anytime at least 5 Business Days immediately prior to the Maturity Date loans
in an aggregate principal amount of up to the New Commitment in immediately available funds. 

  

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The Company shall repay the principal amount of such loans (collectively, the “New Commitment Loans”), together with all accrued and unpaid
interest thereon, in full upon demand by Lender any time after the Maturity Date. The Company shall request each New Commitment Loan by delivering to the Lender: (i) an irrevocable written notice specifying; (ii) the principal amount of
such requested New Commitment Loan which shall be in a minimum amount of $50,000 or an integral multiple of $25,000 in excess thereof; (iii) the date of the requested New Commitment Loan (which shall be a Business Day not sooner than 5 Business
Days prior to the date of such notice); and (iv) a written certification from an executive officer of the Company certifying that, on and as of the date of the requested New Commitment Loan (I) the representations and warranties of
Borrower contained in the Credit Documents remain true and correct in all material respects, and (II) no Event of Default has occurred or is continuing. Without the consent of the Lender, Borrower may not request more than one New Commitment Loan in
any week. Borrower may repay the New Commitment Loans at any time without any penalty or premium. New Commitment Loans once repaid may be borrowed in the form of New Commitment Loans hereunder at any time prior to the Maturity Date, provided
that the aggregate principal amount of all New Commitment Loans outstanding at any time shall not exceed the amount of the New Commitment. 
 (b) The terms and conditions of the New Commitment Loans shall be set forth in a secured convertible promissory note in the form attached hereto as Exhibit A (the “New Commitment Note”), appropriately completed, to
be executed and delivered by Borrower to the Lender on or prior to the Closing Date. 
 (c) The original principal amount of the New
Commitment Note shall equal the sum of the New Commitment. The outstanding principal amount of the New Commitment Note shall be due and payable in full upon demand at any time on or after the Maturity Date. The accrued and unpaid outstanding
interest on the New Commitment Note shall be due and payable in quarterly installments as set forth in the New Commitment Note. 
 (d) The
proceeds of each New Commitment Loan shall only be used by Borrower for its general corporate purposes and to pay any interests installments due under the Promissory Notes. 
 2.2 Restructuring of the Outstanding Debt. 
 (a) Subject to the terms and conditions of this Agreement, on the Closing Date the Lender agrees to restructure the Outstanding Debt by changing the repayment terms thereof from being currently due and payable in full
upon demand by Lender to being due and payable in full upon demand by Lender at any time after the Maturity Date (such restated Outstanding Debt, the “Restated Debt”). 
 (b) The terms and conditions of the Restated Debt shall be set forth in a secured promissory note in the form attached hereto as Exhibit B (the
“Secured Convertible Promissory Note”), appropriately completed, to be executed and delivered by Borrower to the Lender on or prior to the Closing Date. 
  

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 (c) The original principal amount of the Secured Convertible Promissory Note shall equal the sum of the
Outstanding Debt (i.e., $35,654,160). The outstanding principal amount of the Secured Convertible Promissory Note shall be due and payable in full upon demand at any time on or after the Maturity Date. The accrued and unpaid outstanding interest on
the Secured Convertible Promissory Note shall be due and payable in quarterly installments as set forth in the Secured Convertible Promissory Note. 
 2.3. Conversion Feature and Accelerated Maturity Date. 
 (a) At the option of Lender, the outstanding principal and
interest amount of any Promissory Note, or any portion thereof, shall become convertible into Common Stock at the Conversion Price. 
 (b)
It shall be a condition precedent to the Promissory Notes becoming convertible in accordance with the terms thereof (the “Conversion Feature”), that the Proposals be approved at the Stockholder Meeting by the affirmative vote in
person or by proxy of a majority of the outstanding shares of Common Stock beneficially owned by all of the Disinterested Stockholders (“Disinterested Stockholder Approval”). As a part of the proxy statement issued for the
Stockholder Meeting, Borrower shall have received approval of the Conversion Feature by a majority of the independent and disinterested directors of Borrower, and shall have received an opinion issued by an independent and reputable financial
advisor as to the fairness from a financial point of view, to the Disinterested Stockholders, of the Conversion Feature. 
 (c) In the event
Borrower does not obtain Disinterested Stockholder Approval of the Conversion Feature, then the Promissory Notes shall not become convertible and the entire outstanding principal amount and unpaid and accrued interest under the Promissory Notes
shall immediately become due and payable in full upon demand by Lender at any time on or after the date of such Stockholder Meeting. 
 2.4
Closing. Subject to the terms and conditions of this Agreement, the Closing shall take place on April 4, 2008, unless otherwise agreed in writing by both parties (the “Closing Date”). At the Closing, Borrower and
Lender shall take such actions and execute and deliver such agreements and other instruments and documents as set forth in Sections 5 and 6 respectively and as necessary or appropriate to effect the transactions contemplated by this Agreement and
the other Credit Documents in accordance with the terms hereof and thereof. 
 2.5 Taxes on Payments. All payments made by
Borrower under this Agreement, the Promissory Notes, and the other Credit Documents shall be made free and clear of, and without deduction or withholding for or on account of, any present or future income, stamp, documentary or other taxes, any
duties, or any other levies, imposts, charges, fees, deductions or withholdings, now or hereafter imposed, levied, collected, withheld or assessed by any Governmental Authority (except net income taxes and franchise taxes in lieu of net income taxes
imposed on Lender by its jurisdiction of incorporation) (all such non-excluded taxes, duties, levies, imposts, charges, fees, deductions and withholdings being hereinafter called “Taxes”). If any Taxes are required to be withheld
from any amounts payable to Lender hereunder or under the other Credit Documents, the amounts so payable to Lender shall be 

  

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increased to the extent necessary to yield to Lender (after payment of all Taxes) interest or any such other amounts payable hereunder at the rates or in the
amounts specified in this Agreement and the other Credit Documents. Whenever any Taxes are payable by Borrower, as promptly as possible thereafter, Borrower shall send to Lender a certified copy of an original official receipt received by Borrower
showing payment thereof. If Borrower fails to pay any Taxes when due to the appropriate taxing authority or fails to remit to Lender the required receipts or other required documentary evidence, Borrower shall indemnify Lender for any taxes,
interest or penalties that may become payable by Lender as a result of any such failure. The obligations of Borrower under this Section 2.5 shall survive the payment and performance of the Obligations and the termination of this Agreement.

 2.6 Security Agreement. Borrower’s payment and performance obligations under this Agreement, the Promissory Notes, and
the other Credit Documents are secured by all of the personal property assets of Borrower in accordance with the terms of Security Agreement. The grant of security interest in the Collateral (as defined in the Security Agreement) will continue to
secure Borrower’s obligations to pay the Outstanding Debt as restructured into the Restated Debt along with Borrower’s obligations to pay the New Commitment Loans. 
 3. Representations and Warranties of Borrower. In order to induce Lender to enter into this Agreement and to restructure the Outstanding
Debt and make the New Commitment, Borrower represents and warrants to Lender as follows (except as set forth on a Schedule of Exceptions attached hereto as Schedule 3 and delivered separately by the Borrower to Lender, which exceptions shall
be deemed to be representations and warranties as if made hereunder), and Borrower covenants that the following representations will continue to be true, and that Borrower will at all times comply with all of the following covenants: 
 3.1 Corporate Existence. Borrower is and will continue to be, duly organized, validly existing and in good standing under the laws of the
State of Delaware. Borrower’s organizational identification number issued by the State of Delaware is and will continue to be #2578459. To the best of Borrower’s knowledge, Borrower is and will continue to be qualified and licensed to do
business in all jurisdictions in which any failure to do so could reasonably be expected to result in a Material Adverse Effect. 
 3.2
Legal Authority. The execution, delivery and performance by Borrower of this Agreement and the other Credit Documents, the consummation of the transactions contemplated thereby and issuance and delivery of the Securities (a) are
within the corporate power of Borrower, and (b) have been duly authorized by all necessary corporate actions on the part of Borrower. 
 3.3 Enforceability. Each of this Agreement and the other Credit Documents executed, or to be executed, by Borrower has been, or will be, duly executed and delivered by Borrower and constitutes, and will constitute, a legal,
valid and binding obligation of Borrower, enforceable against Borrower in accordance with its terms, except as limited by bankruptcy, insolvency or other laws of general application relating to or affecting the enforcement of creditors’ rights
generally and general principles of equity. 
  

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 3.4 No Contravention. Except as set forth on Schedule 3.4, the execution and
delivery by Borrower of this Agreement and the other Credit Documents executed by Borrower and the performance and consummation of the transactions contemplated thereby do not (a) violate any Requirement of Law applicable to Borrower;
(b) violate any provision of, or result in the breach or the acceleration of, or entitle any other Person to accelerate (whether after the giving of notice or lapse of time or both), any contractual obligation of Borrower; or (c) result in
the creation or imposition of any Lien (or the obligation to create or impose any Lien) upon any property, asset or revenue of such Borrower (except such Liens as may be created in favor of Lender pursuant to this Agreement and the other Credit
Documents). 
 3.5 Approvals. Except as set forth on Schedule 3.5, no consent, approval, order or authorization of, or
registration, declaration or filing with, any Governmental Authority or other Person (including, without limitation, the stockholders of any Person) is required in connection with the execution and delivery of this Agreement and the other Credit
Documents executed by Borrower or the performance or consummation of the transactions contemplated hereby and thereby, except for those which have been made or obtained and are in full force and effect, the Disinterested Stockholder Approval
required by Section 7.2 hereof. 
 3.6 Valid Issuance of Securities. The Securities, when issued and delivered in
accordance with the terms of the Credit Documents for the consideration expressed herein, will be duly and validly issued, fully paid and nonassessable and free of restrictions on transfer other than restrictions on transfer under this Agreement,
the Registration Rights Agreement or applicable state and federal securities laws. The Securities will be issued in compliance with all applicable federal and state securities laws. Subject to the Company having a sufficient number of authorized
shares of Common Stock at the time of conversion, the Common Stock issuable upon conversion of the Secured Convertible Promissory Note has been duly and validly reserved for issuance. 
 3.7 No Violation or Default. Except as disclosed and set forth in Schedule 3.7, Borrower is not in violation of or in default with
respect to (a) any Requirement of Law applicable to Borrower or (b) any contractual obligation of Borrower (nor is there any waiver in effect which, if not in effect, would result in such a violation or default), where, in each case, such
violation or default is reasonably likely to have a Material Adverse Effect. 
 3.8 Intellectual Property. To the best of
Borrower’s knowledge, Borrower owns or possesses sufficient legal rights to all Intellectual Property necessary for its business as now conducted and as presently contemplated to be conducted without any conflict with, or infringement of, the
rights of others. Except as set forth on Schedule 3.8, there are no outstanding options, licenses, or agreements of any kind relating to the foregoing, nor is Borrower bound by or a party to any options, licenses or agreements of any kind
with respect to the patents, trademarks, service marks, trade names, copyrights, trade secrets, licenses, information, proprietary rights and processes of any other person or entity except, in any case, options, licenses, or agreements entered into
by Borrower in the ordinary course of business. Borrower has not received any communications alleging that Borrower has violated or, by conducting its business, would violate any of the patents, trademarks, service marks, tradenames, copyrights,
trade secrets or other proprietary rights or processes of any other Person. Borrower is not aware that any of its employees is obligated under any contract (including licenses, 

  

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covenants or commitments of any nature) or other agreement, or subject to any judgment, decree or order of any court or administrative agency, that would
interfere with the use of such employee’s best efforts to promote the interest of Borrower or that would conflict with Borrower’s business. Neither the execution or delivery of this Agreement, nor the carrying on of Borrower’s
business by the employees of Borrower, nor the conduct of Borrower’s business as proposed, will, to Borrower’s knowledge, conflict with or result in a breach of the terms, conditions, or provisions of, or constitute a default under, any
contract, covenant or instrument under which any such employee is now obligated. Borrower does not believe it is or will be necessary to use any inventions of any of its employees (or persons it currently intends to hire) made prior to their
employment by Borrower. 
 3.9 Title to Collateral; Permitted Liens. Borrower is now, and will at all times in the future be,
the sole owner of all the Collateral, except for items of Equipment which are leased by Borrower. The Collateral now is and will remain free and clear of any and all Liens, charges, security interests, encumbrances and adverse claims, except for
Permitted Liens and the Liens granted to Lender pursuant to the Security Agreement. Except as otherwise set forth on Schedule 3.9, Lender now has, and will continue to have, a first-priority perfected and enforceable security interest in all
of the Collateral, subject only to the Permitted Liens, and Borrower will at all times defend Lender and the Collateral against all claims of others. Except to the extent previously disclosed to Lender, none of the Collateral now is or will be
affixed to any real property in such a manner, or with such intent, as to become a fixture. Borrower is not and will not become a lessee under any real property lease pursuant to which the lessor may obtain any rights in any of the Collateral and no
such lease now prohibits, restrains, impairs or will prohibit, restrain or impair Borrower’s right to remove any Collateral from the leased premises. Whenever any Collateral is located upon premises in which any third party has an interest
(whether as owner, bailee, mortgagee, beneficiary under a deed of trust, Lien or otherwise), upon request of Lender, Borrower shall use its commercially reasonable efforts to cause such third party to execute and deliver to Lender, in form
acceptable to Lender, such waivers, acknowledgements and subordinations as Lender shall specify, so as to ensure that Lender’s rights in the Collateral are, and will continue to be, superior to the rights of any such third party and so as to
acknowledge that such Person holds such Collateral for the benefit of Lender pursuant to Section 9-313(c) of the UCC. Borrower will keep in full force and effect, and will comply with all the terms of, any lease of real property where any of
the Collateral now or in the future may be located. 
 3.10 Books and Records. Borrower has maintained and will maintain at
Borrower’s Address books and records which are complete and accurate in all material respects. 
 3.11 Litigation. Except
as disclosed and set forth on the Schedule 3.11, there is no claim, suit, litigation, proceeding or investigation pending or (to best of Borrower’s knowledge) threatened by or against or affecting Borrower in any court or before any
Governmental Authority (or any basis therefor known to Borrower) which may result, either separately or in the aggregate, in any Material Adverse Effect. Borrower will promptly inform Lender in writing of any claim, proceeding, litigation or
investigation in the future threatened or instituted by or against Borrower involving any claim. 
  

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 3.12 Financial Condition, Statements and Reports. Except as set forth on Schedule
3.12, all financial statements now or in the future delivered to Lender have been, and will be, prepared in conformity with generally accepted accounting principles and now and in the future will present fairly, in all material respects, the
financial condition and results of operations of Borrower, at the times and for the periods therein stated. Between the last date covered by any such statement provided to Lender and the date hereof, there has been no Material Adverse Effect.

 3.13 Tax Returns and Payments; Pension Contributions. Except as set forth on Schedule 3.13, Borrower has timely
filed, and will timely file, all tax returns and reports required by foreign, federal, state and local law, and Borrower has timely paid, and will timely pay, all foreign, federal, state and local taxes, assessments, deposits and contributions now
or in the future owed by Borrower. Borrower may, however, defer payment of any contested taxes, provided that Borrower (a) in good faith contests Borrower’s obligation to pay the taxes by appropriate proceedings promptly and diligently
instituted and conducted, (b) notifies Lender in writing of the commencement of, and any material development in, the proceedings, and (c) posts bonds or takes any other steps required to keep the contested taxes from becoming a Lien upon
any of the Collateral. Borrower is unaware of any claims or adjustments proposed for any of Borrower’s prior tax years which could result in additional taxes becoming due and payable by Borrower. Borrower has paid, and shall continue to pay all
amounts necessary to fund all present and future pension, profit sharing and deferred compensation plans in accordance with their terms, and Borrower has not and will not withdraw from participation in, permit partial or complete termination of, or
permit the occurrence of any other event with respect to, any such plan which could result in any liability of Borrower, including any liability to the Pension Benefit Guaranty Corporation or its successors or any other Governmental Authority.

 3.14 Compliance with Law. Borrower has complied, and will comply, in all material respects, with all provisions of all
foreign, federal, state and local laws and regulations relating to Borrower, including, but not limited to, those relating to Borrower’s ownership of real or personal property, the conduct and licensing of Borrower’s business, and all
environmental matters. The representations and warranties set forth in this Section 3.14 shall not be deemed or construed to apply to any matter covered by the representations and warranties set forth in Sections 3.6 or 3.7. 
 3.15 Accuracy of Information Furnished. The Credit Documents and the other certificates, statements and information (excluding projections)
furnished by Borrower in connection with the Credit Documents and the transactions contemplated thereby, taken as a whole, do not intentionally contain any untrue statement of a material fact and do not intentionally omit to state any material fact
necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. All projections furnished by Borrower in connection with the Credit Documents and the transactions contemplated thereby have been
based upon reasonable assumptions and represent, as of their respective dates of presentations, Borrower’s good faith estimates of the future performance of Borrower. 
 4. Representations and Warranties of Lender. Lender hereby represents and warrants to Borrower that: 
 4.1 Legal Authority. The execution, delivery and performance by Lender of each Credit Document executed, or to be executed, by Lender and
the consummation of the transactions contemplated thereby (a) are within the power of Lender and (b) have been duly authorized by all necessary actions on the part of Lender. 
  

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 4.2 Enforceability. Each Credit Document executed, or to be executed, by Lender has been,
or will be, duly executed and delivered by Lender and constitutes, or will constitute, a legal, valid and binding obligation of Lender, enforceable against Lender in accordance with its terms, except as limited by bankruptcy, insolvency or other
laws of general application relating to or affecting the enforcement of creditors’ rights generally and general principles of equity. 
 4.3 No Contravention. The execution and delivery by Lender of the Credit Documents executed by Lender and the performance and consummation of the transactions contemplated thereby do not violate any Requirement of Law
applicable to Lender. 
 4.4 Approvals. No consent, approval, order or authorization of, or registration, declaration or filing
with, any Governmental Authority or other Person (including, without limitation, the stockholders of any Person) is required in connection with the execution and delivery of the Credit Documents executed by Lender or the performance or consummation
of the transactions contemplated thereby, except for those which have been made or obtained and are in full force and effect. 
 4.5
Purchase Entirely for Own Account. This Agreement is made with Lender in reliance upon Lender’s representation to Borrower, which by Lender’s execution of this Agreement, Lender hereby confirms, that the Securities to be
acquired by Lender will be acquired for investment for Lender’s own account, not as a nominee or agent, and not with a view to the resale or distribution of any part thereof in violation of any applicable securities laws, and that Lender has no
present intention of selling, granting any participation in, or otherwise distributing the same. By executing this Agreement, Lender further represents that Lender does not presently have any contract, undertaking, agreement or arrangement with any
person to sell, transfer or grant participations to such person or to any third person, with respect to any of the Securities. Lender has not been formed for the specific purpose of acquiring any of the Securities. 
 4.6 Knowledge. Lender is aware of Borrower’s business affairs and financial condition and has acquired sufficient information about
Borrower to reach an informed and knowledgeable decision to acquire the Securities. 
 4.7 Accredited Investor. Lender is an
Accredited Investor. 
 5. Conditions to Lender’s Obligations at Closing. The obligations of Lender under this Agreement
are subject to the fulfillment, on or before the Closing Date, of each of the following conditions, unless otherwise waived in writing by Lender in its sole discretion: 
 5.1 Representations and Warranties. The representations and warranties of Borrower contained in Section 3 of this Agreement and in the other Credit Documents shall be true and correct in all
material respects on and as of the Closing Date. 
  

 12 

 5.2 Performance. Borrower shall have performed and complied in all material respects with
all material covenants, agreements, obligations and conditions contained in all of this Agreement and the other Credit Documents that are required to be performed or complied with by it on or before the Closing Date. 
 5.3 Security Agreement. Borrower shall have executed and delivered to Lender the Amended and Restated Security Agreement in the form
attached hereto as Exhibit C (the “Security Agreement”). 
 5.4 Compliance Certificate. President of
Borrower shall have delivered to Lender a certificate, dated as of the Closing Date, in substantially the form attached hereto as Exhibit D (the “Compliance Certificate”), certifying that the conditions specified in Sections
5.1 and 5.2 have been fulfilled. 
 5.5 Promissory Notes. Borrower shall have executed and delivered to Lender the Promissory
Notes in favor of Lender, or any of its Affiliates as Lender may designate. 
 5.6 Registration Rights Agreement. Lender and
Borrower shall have entered into a registration rights agreement in substantially the form attached hereto as Exhibit E (as amended, restated or otherwise modified from time to time, the “Registration Rights Agreement”).

 5.7 Legal Requirements. All Requirements of Law by all Governmental Authorities that are required in connection with the
lawful issuance of the Secured Convertible Promissory Note pursuant to this Agreement shall be obtained and effective as of the Closing Date. 
 5.8 Legal Opinion. Lender shall have received from Fowler White Boggs Banker P.A., counsel for Borrower, an opinion, dated as of the Closing Date, in substantially the form attached hereto as Exhibit F. 
 5.9 Secretary Certificate. The Secretary of Borrower shall have delivered to Lender at the Closing a certificate in substantially the form
attached hereto as Exhibit G (the “Secretary Certificate”) certifying (i) the Certificate of Incorporation, (ii) the Bylaws of Borrower, and (iii) resolutions of the Board of Directors of Borrower approving
this Agreement and the other Credit Documents and the transactions contemplated hereby and thereby, including the approval of a majority of the independent and disinterested directors of Borrower. 
 5.10 Lien Searches. Lender shall have received from Borrower copies of UCC Lien searches to confirm that Lender retains a valid and
continuing first priority, perfected security interest in the Collateral, with results thereof satisfactory to Lender in Lender’s sole and absolute discretion. 
 5.11 Financial Information. Borrower shall have delivered to Lender (i) a draft of its Form 10-K for the period ending December 31, 2007, (ii) projected Consolidated Statements of
Operations for five (5) quarters beginning with Q1 2008 and ending with Q1 2009, (iii) a Consolidated Balance Sheet as of December 31, 2007, (iv) projected Consolidated Balance Sheets as of the end of each of the five
(5) quarters beginning with Q1 2008 and ending with Q1 

  

 13 

 
2009, (v) Consolidated Statements of Cash Flows for the period ending December 31, 2007, and (vi) projected Consolidated Statements of Cash
Flows for the five (5) quarters beginning with Q1 2008 and ending with Q1 2009, each of which Lender shall hold in confidence. 
 6.
Conditions to Borrower’s Obligations at Closing. The obligations of Borrower under this Agreement are subject to the fulfillment, on or before the Closing Date, of each of the following conditions, unless otherwise waived in
writing by Borrower in its sole discretion: 
 6.1 Representations and Warranties. The representations and warranties of Lender
contained in Section 4 shall be true and correct in all material respects on and as of the Closing Date. 
 6.2
Performance. All covenants, agreements and conditions contained in this Agreement and the other Credit Documents to be performed by Lender on or prior to the Closing Date shall have been performed or complied with in all material
respects. 
 6.3 Prior Secured Promissory Notes. Lender shall have returned to Borrower the Prior Secured Promissory Notes
marked “cancelled”; provided, however, that the execution and delivery of the Secured Convertible Promissory Note shall not (i) operate as a waiver of any right, power or remedy of Lender under the Prior Secured
Promissory Notes, or (ii) extinguish or impair any obligations of Borrower under the Prior Secured Promissory Notes. 
 6.4 Legal
Requirements. All Requirements of Law by all Governmental Authorities that are required in connection with the lawful issuance of the Secured Convertible Promissory Note pursuant to this Agreement shall be obtained and effective as of the
Closing Date. 
 7. Covenants of Borrower. 
 7.1 Stockholder Meeting. Borrower agrees to include in the Stockholder Meeting: (i) a proposal to approve the Conversion Feature and (ii) a proposal to increase the number of authorized shares
of Common Stock under the Certificate of Incorporation from 300,000,000 to a sufficient number of authorized shares of Common Stock required by Lender in order to provide for conversion of Promissory Notes into shares of Common Stock in accordance
with the terms of this Agreement (collectively, the “Proposals”). As a part of the proxy statement to be issued for the Stockholder Meeting, Borrower shall have received approval of the Conversion Feature by a majority of the
independent and disinterested directors of Borrower, and shall have received an opinion issued by an independent and reputable financial advisor as to the fairness, from a financial point of view, to the Disinterested Stockholders, of the Conversion
Feature. 
 7.2 Management and Board Support. The management and Board of Directors of the Company, including the Special
Committee, but not including Dr. Bryan J. Zwan, shall support the Proposals and shall use commercially reasonable efforts to obtain stockholder approval of the Proposals, including Disinterested Stockholder Approval. 
 7.3 Financial Advisory. Borrower shall engage a financial or accounting advisory firm acceptable to Lender to assist Borrower in
strengthening its financial reporting and control functions as recommended by the Borrower’s independent auditors within sixty (60) days following the Closing Date. 
  

 14 

 7.4 Fairness Opinion. Prior to the Stockholder Meeting, Borrower shall provide Lender a
copy of an opinion, in a form acceptable to Lender, issued to Borrower and the Special Committee by an independent and reputable financial advisor as to the fairness, from a financial point of view, to the Disinterested Stockholders of the
Conversion Feature. 
 8. Miscellaneous. 
 8.1 Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of which together shall constitute one instrument. 
 8.2 Amendments and Waivers. Any term of this Agreement may be amended or waived only with the written consent of Lender and Borrower.

 8.3 Severability. If one or more provisions of this Agreement are held to be unenforceable under applicable law, the parties
agree to renegotiate such provision in good faith, in order to maintain the economic position enjoyed by each party as close as possible to that under the provision rendered unenforceable. In the event that the parties cannot reach a mutually
agreeable and enforceable replacement for such provision, then (a) such provision shall be excluded from this Agreement, (b) the balance of the Agreement shall be interpreted as if such provision were so excluded and (c) the balance
of the Agreement shall be enforceable in accordance with its terms. 
 8.4 Entire Agreement. This Agreement and the documents
referred to herein constitute the entire agreement between the parties hereto pertaining to the subject matter hereof, and any and all other written or oral agreements existing between the parties hereto are expressly canceled. 
 8.5 Notices. Except as otherwise provided herein, all notices, requests, demands, consents, instructions or other communications to or upon
Borrower or Lender under this Agreement or the other Credit Documents shall be in writing and faxed, mailed or delivered, if to Borrower, at Borrower’s address or facsimile number set forth below, or if to Lender, at the address or facsimile
number set forth below (or to such other facsimile number or address for any party as indicated in any notice given by that party to the other party). All such notices and communications shall be effective (a) when sent by an overnight courier
service of recognized standing, on the second Business Day following the deposit with such service; (b) when mailed, first class postage prepaid and addressed as aforesaid through the United States Postal Service, upon receipt; (c) when
delivered by hand, upon delivery; and (d) when faxed, upon confirmation of receipt: 
 Lender: 
 Optel, LLC 
 3000 Bayport Drive 

Tampa, FL 33607 
  

 15 

 Tel No. (813) 287-6337 
 Fax No. (813) 287-2886 
 Attn: Chief
Financial Officer 
 Borrower: 
 Digital Lightwave, Inc. 
 5775 Rio Vista Drive 
 Clearwater, FL 33760 
 Tel No. (727) 442-6677 
 Fax No. (727) 467-0702 
 Attn:
President 
 In any case where this Agreement authorizes notices, requests, demands or other communications by Borrower to Lender to be made
by telephone or facsimile, Lender may conclusively presume that anyone purporting to be a person designated in any incumbency certificate or other similar document received by Lender is such a person. 
 8.6 Waivers. The failure of Lender at any time or times to require Borrower to strictly comply with any of the provisions of this Agreement
or any other present or future agreement between Borrower and Lender shall not waive or diminish any right of Lender later to demand and receive strict compliance therewith. Any waiver of any default shall not waive or affect any other default,
whether prior or subsequent, and whether or not similar. None of the provisions of this Agreement or any other agreement now or in the future executed by Borrower and delivered to Lender shall be deemed to have been waived by any act or knowledge of
Lender or its agents or employees, but only by a specific written waiver signed by an authorized officer of Lender and delivered to Borrower. Borrower waives demand, protest, notice of protest and notice of default or dishonor, notice of payment and
nonpayment, release, compromise, settlement, extension or renewal of any commercial paper, instrument, account, general intangible, document or guaranty at any time held by Lender on which Borrower is or may in any way be liable, and notice of any
action taken by Lender, unless expressly required by this Agreement. 
 8.7 Indemnification. To the fullest extent permitted by
law, Borrower agrees to protect, indemnify, defend and hold harmless Lender and its partners, managers, members, directors, officers and employees and their respective directors, officers, employees, agents and advisors
(“Indemnitees”) from and against any and all liabilities, losses, damages or expenses of any kind or nature and from any suits, claims or demands (including in respect of or for reasonable attorney’s fees and other expenses)
arising on account of or in connection with any matter or thing or action or failure to act by Indemnitees, or any of them, arising out of or relating to this Agreement and all of the other Credit Documents or any transaction contemplated thereby,
including without limitation the issuance of the Secured Convertible Promissory Note, except to the extent such liability arises from the willful misconduct or gross negligence of such Indemnitee. Upon receiving knowledge of any suit, claim or
demand asserted by a third party that Lender believes is covered by this indemnity, Lender shall give Borrower notice of the matter and shall defend such action with its own legal counsel, at Borrower’s sole cost and expense. Lender may also
require Borrower to defend the matter. Any failure or delay of 

  

 16 

 
Lender to notify Borrower of any such suit, claim or demand shall not relieve Borrower of its obligations under this Section 8.7 but shall reduce such
obligations to the extent of any increase in those obligations caused solely by any such failure or delay which is unreasonable. The obligations of Borrower under this Section 8.7 shall survive the payment and performance of the Obligations and
the termination of this Agreement. 
 8.8 Benefit of Agreement. The provisions of this Agreement shall be binding upon and
inure to the benefit of the respective successors, assigns, heirs, beneficiaries and representatives of Borrower and Lender; provided, however, that Borrower may not assign or transfer any of its rights under this Agreement without the
prior written consent of Lender, and any prohibited assignment shall be void. No consent by Lender to any assignment shall release Borrower from its liability for the Obligations. Lender may, at any time, sell and assign, or grant participating
interests in, to any other Person not a direct competitor of Borrower, all or a portion of its rights and obligations under this Agreement and the other Credit Documents. Borrower agrees that it shall perform such acts, and provide such information,
as Lender may reasonably request to assist Lender with any such assignment or participation. 
 8.9 Limitation of Actions. Any
claim or cause of action by Borrower against Lender, its directors, officers, employees, agents, accountants or attorneys, based upon, arising from, or relating to this Agreement or any other transaction contemplated hereby or relating hereto, shall
be barred unless asserted by Borrower by the commencement of an action or proceeding in a court of competent jurisdiction by the filing of a complaint within one year after the first act, occurrence or omission upon which such claim or cause of
action, or any part thereof, is based, and the service of a summons and complaint on an officer of Lender, or on any other person authorized to accept service on behalf of Lender, within thirty (30) days thereafter. Borrower agrees that such
one-year period is a reasonable and sufficient time for Borrower to investigate and act upon any such claim or cause of action. The one-year period provided herein shall not be waived, tolled, or extended except by the written consent of Lender in
its sole discretion. This provision shall survive any termination of this Agreement or any other present or future agreement. 
 8.10
Schedule of Exceptions and Exhibits. The Schedules and Exhibits to this Agreement are hereby incorporated into this Agreement and are hereby made a part of this Agreement as if set out in full in this Agreement. The representations and
warranties of Borrower set forth in this Agreement are made and given subject to the disclosures contained in the Schedule of Exceptions delivered in connection herewith. Borrower shall not be deemed to be in breach of any such representations and
warranties (and no claim of right to indemnification shall lie in respect thereof) in respect of any such matter so disclosed in the Schedule of Exceptions. Where brief particulars only of a matter are set out or referred to in the Schedule of
Exceptions, or a reference is made to a particular part only of a disclosed document, full particulars of the matter and the full contents of the document are deemed to be disclosed provided that the document in its entirety has been provided to the
Lender as of the date of this Agreement. The specific disclosures set forth in the Schedules have been organized to correspond to section references in this Agreement to which the disclosure may be most likely to relate, but such disclosure shall
apply to and shall be deemed to be exceptions to or modifications or qualifications of all representations and warranties contained herein to the extent applicable. Lender shall be deemed to be aware of and there are deemed to have been 

  

 17 

 
disclosed to Lender as if herein set forth (i) all matters fairly disclosed or referred to or contained in this Agreement and in all documents
specifically referred to therein and (ii) the contents of and all matters referred to in the documents specifically listed in the Schedules and provided to Lender. No reference to or disclosure of any item or other matter in the Schedules shall
be construed as an admission or indication that such item or other matter is material or that such item or other matter is required to be referred to or disclosed in the Schedules. No disclosure in the Schedules relating to any possible breach or
violation of any agreement, law or regulation shall be construed as an admission or indication that any such breach or violation exists or has actually occurred. 
 8.11 Section Headings; Construction. Section headings are only used in this Agreement for convenience. Borrower and Lender acknowledge that the headings may not describe completely the subject matter of
the applicable section, and the headings shall not be used in any manner to construe, limit, define or interpret any term or provision of this Agreement. The term “including”, whenever used in this Agreement, shall mean “including
(but not limited to)”. This Agreement has been fully reviewed and negotiated between the parties and no uncertainty or ambiguity in any term or provision of this Agreement shall be construed strictly against Lender or Borrower under any rule of
construction or otherwise. 
 8.12 Governing Law; Jurisdiction; Venue. This Agreement and all acts and transactions hereunder
and all rights and obligations of Lender and Borrower shall be governed by the laws of the State of Florida. As a material part of the consideration to Lender to enter into this Agreement, Borrower (i) agrees that all actions and proceedings
relating directly or indirectly to this Agreement shall, at Lender’s option, be litigated in courts located within Pinellas County, Florida and that the exclusive venue therefor shall be Pinellas County; (ii) consents to the jurisdiction
and venue of any such court and consents to service of process in any such action or proceeding by personal delivery or any other method permitted by law; and (iii) waives any and all rights Borrower may have to object to the jurisdiction of
any such court, or to transfer or change the venue of any such action or proceeding. 
 8.13 MUTUAL WAIVER OF JURY TRIAL.
BORROWER AND LENDER EACH HEREBY WAIVE THE RIGHT TO TRIAL BY JURY IN ANY ACTION OR PROCEEDING BASED UPON, ARISING OUT OF, OR IN ANY WAY RELATING TO, THIS AGREEMENT OR ANY CONDUCT, ACTS OR OMISSIONS RELATING TO THIS AGREEMENT OF LENDER OR BORROWER OR
ANY OF THEIR DIRECTORS, OFFICERS, EMPLOYEES, AGENTS, ATTORNEYS OR ANY OTHER PERSONS AFFILIATED WITH LENDER OR BORROWER, IN ALL OF THE FOREGOING CASES, WHETHER SOUNDING IN CONTRACT OR TORT OR OTHERWISE. 
 [Signature Pages Follow] 
  

 18 

 The parties have executed this Credit and Restructuring Agreement as of the date first written above.

  

			
	BORROWER:
	
	Digital Lightwave, Inc., a Delaware corporation
		
	By:	 	 /s/ Kenneth T. Myers

		 	Kenneth T. Myers
		 	President
	
	LENDER:
	
	Optel Capital, LLC, a Delaware limited liability company
		
	By:	 	 /s/ Al Zwan

	Name:	 	Al Zwan
	Title:	 	President

 SIGNATURE PAGE TO CREDIT AND RESTRUCTURING AGREEMENT 

			
	LIST OF EXHIBITS
		
	 Exhibit A -
	  	Form of New Commitment Note
		
	Exhibit B -	  	Form of Secured Convertible Promissory Note
		
	Exhibit C -	  	Form of Security Agreement
		
	Exhibit D -	  	Form of Compliance Certificate
		
	Exhibit E -	  	Form of Registration Rights Agreement
		
	Exhibit F -	  	Form of Legal Opinion of Fowler White
		
	Exhibit G -	  	Form of Secretary Certificate
	
	LIST OF SCHEDULES
		
	Schedule A -	  	Prior Secured Promissory Notes
		
	Schedule 3 -	  	Schedule of Exceptions
		
	Schedule 3.4 -	  	No Contravention
		
	Schedule 3.5 -	  	Approvals
		
	Schedule 3.7 -	  	Violations or Defaults of Obligations
		
	Schedule 3.8 -	  	Intellectual Property
		
	Schedule 3.9 -	  	Title to Collateral
		
	Schedule 3.11 -	  	Litigation
		
	Schedule 3.12 -	  	Financial Statements
		
	Schedule 3.13 -	  	Tax Returns and Payments

 Exhibit A 
 Form of New Commitment Note 

 Exhibit B 
 Form of Secured Convertible Promissory Note 

 Exhibit C 
 Form of Security Agreement 

 Exhibit D 
 Form of Compliance Certificate 

 Exhibit E 
 Form of Registration Rights Agreement 

 Exhibit F 
 Form of Legal Opinion of Fowler White 

 Exhibit G 
 Form of Secretary Certificate 

 Schedule A 
 Prior Secured Promissory Notes 
  

				
	 Date of Borrowing
	 	Outstanding
Principal
Balance	 
	 October 1, 2004
	 	360,000	 
	 October 14, 2004
	 	300,000	 
	 October 15, 2004
	 	1,000,000	 
	 November 10, 2004
	 	2,300,000	 
	 November 24, 2004
	 	475,000	 
	 January 28, 2005
	 	400,000	 
	 February 11, 2005
	 	2,200,000	 
	 February 25, 2005
	 	1,000,000	 
	 March 11, 2005
	 	700,000	 
	 March 23, 2005
	 	1,500,000	 
	 April 14, 2005
	 	375,000	 
	 April 28, 2005
	 	600,000	 
	 May 12, 2005
	 	650,000	 
	 May 26, 2005
	 	600,000	 
	 June 15, 2005
	 	425,000	 
	 June 29, 2005
	 	475,000	 
	 July 14, 2005
	 	700,000	 
	 August 12, 2005
	 	375,000	 
	 August 31, 2005
	 	1,870,000	 
	 September 14, 2005
	 	500,000	 
	 September 29, 2005
	 	775,000	 
	 November 21, 2005
	 	700,000	 
	 December 8, 2005
	 	250,000	 
	 December 12, 2005
	 	500,000	 
	 December 23, 2005
	 	800,000	 
	 January 20, 2006
	 	300,000	 
	 January 23, 2006
	 	328,773	 
	 February 2, 2006
	 	328,773	 
	 February 13, 2006
	 	500,000	 
	 February 15, 2006
	 	180,000	 
	 March 1, 2006
	 	200,000	 
	 March 14, 2006
	 	150,000	 
	 March 29, 2006
	 	660,000	 
	 March 31, 2006
	 	300,000	 
	 April 13, 2006
	 	900,000	 
	 April 18, 2006
	 	200,000	 
	 April 25, 2006
	 	300,000	 
	 May 15, 2006
	 	2,100,000	 
	 July 12, 2006
	 	200,000	 
	 July 18, 2006
	 	420,404	 
	 August 4, 2006
	 	234,965	 
	 October 4, 2006
	 	269,931	 

					
	 December 27, 2006
	 	 	242,331	 
	 May 11, 2007
	 	 	225,000	 
	 June 1, 2007
	 	 	230,000	 
	 August 13, 2007
	 	 	(225,000	)
	 December 14, 2007
	 	 	600,000	 
	 February 5, 2008
	 	 	(230,000	)
	 February 20, 2008
	 	 	(300,000	)
		 	 	 	 
	 Total outstanding
	 	$	27,945,177	 

 Schedule 3 
 Schedule of Exceptions 

 Schedule 3.4 
 No Contravention 

 Schedule 3.5 
 Approvals 

 Schedule 3.7 
 Violations or Defaults of Obligations 

 Schedule 3.8 
 Intellectual Property 

 Schedule 3.9 
 Title to Collateral 

 Schedule 3.11 
 Litigation 

 Schedule 3.12 
 Financial Statements 

 Schedule 3.13 
 Tax Returns and PaymentsSecured Convertible Promissory Note (Restated Note)

 Exhibit 10.2 
 THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE, AND HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH,
THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISTRIBUTION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL IN A FORM SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED, OR THE APPLICABLE SECURITIES LAWS OF ANY STATE. 
 SECURED CONVERTIBLE PROMISSORY NOTE 

 (Restated Note) 
  

			
	 $35,654,160.00
	  	April 4, 2008
		  	Boulder, Colorado

 For value received, Digital Lightwave, Inc., a Delaware corporation (the
“Company”), promises to pay to Optel Capital, LLC, a Delaware limited liability company (the “Holder”), or its registered assigns, the principal sum of Thirty-Five Million, Six Hundred Fifty-Four Thousand, One
Hundred Sixty Dollars ($35,654,160.00) with interest on the outstanding principal amount at a rate equal to the London Interbank Offered Rate (as defined below) plus 100 basis points. As used herein, the term “London Interbank Offered
Rate” means the fluctuating rate of interest equal to the rate per annum equal to the British Bankers Association LIBOR rate (“BBA LIBOR”), as published by Reuters (or such other commercially available source providing
quotations of BBA LIBOR as selected by the Holder from time to time) as determined for each business day at approximately 11:00 a.m. London time two (2) business days prior to the date in question, for dollar deposits (for delivery on the first
day of such interest period) with a three month term. If such rate is not available at such time for any reason, then the rate for that interest period will be determined by such alternate method as reasonably selected by the Holder. The interest
rate shall be computed on the basis of the actual number of days elapsed and a year of 360 days. This Note is issued pursuant to the Credit and Restructuring Agreement, dated as of April 4, 2008 (as amended, restated or otherwise modified from
time to time, the “Credit and Restructuring Agreement”), by and between the Company and the Holder. Terms not otherwise defined herein shall have the meaning given to them in the Credit and Restructuring Agreement. This Note is
subject to the following terms and conditions. 
 1. Maturity. 
 (a) Unless converted as provided in Section 2, (i) the entire unpaid outstanding principal amount shall be due and payable upon demand by the
Holder at any time the earlier to occur of (I) March 31, 2010 and (II) the date on which written demand is made by the Holder in accordance with Section 2.3(c) of the Credit and Restructuring 

 
Agreement (the “Maturity Date”) and (ii) the accrued and unpaid interest shall be due and payable in quarterly installments on the last
business day of each of the Company’s fiscal quarters with the first interest installment payment due and payable on June 30, 2008. 
 (b) Notwithstanding the foregoing, the entire unpaid balance of principal and interest (the “Aggregate Debt”) shall become immediately due and payable upon demand by the Holder at any time on or following the occurrence of
an Event of Default (as defined in the Security Agreement (as defined below)). 
 2. Conversion. 
 (a) Conversion into Common Stock; Conversion Price. The Aggregate Debt, or any portion thereof, shall be convertible at the option of the
Holder into shares of Common Stock of the Company (“Conversion Stock”), at any time, and from time to time, following the Stockholder Meeting, at a conversion price per share (the “Conversion Price”) equal to the
greater of (a) $0.01 or (b) 100% of the average of the daily volume-weighted average price of Common Stock quoted or traded on the over-the-counter market as reported by Pink Sheets LLC (the “Pink Sheets”) (or, if the
Common Stock is not quoted or traded on the Pink Sheets at the time of conversion, such other primary market on which the Common Stock is quoted or traded) during the period of five consecutive trading days ending on the date immediately prior to
the date of the conversion of this Note, from time to time. 
 (b) Disinterested Stockholder Approval. Notwithstanding anything
contained in this Note to the contrary, it shall be a condition precedent to this Note becoming convertible pursuant to Section 2(a) above, that the Proposals be approved at the Stockholder Meeting by the affirmative vote in person or by proxy
of a majority of the outstanding shares of Common Stock beneficially owned by all of the Disinterested Stockholders (“Disinterested Stockholder Approval”). In the event the Company does not obtain Disinterested Stockholder Approval
of the Proposals, this Note shall not become convertible and Maturity Date shall be accelerated in accordance with Section 1(b)(i) above. 
 (c) Mechanics and Effect of Conversion. 
 (1) Fractional Shares. No fractional shares of the
Company’s capital stock will be issued upon conversion of this Note. In lieu of any fractional share to which the Holder would otherwise be entitled, the Company will pay to the Holder in cash the amount of the unconverted principal and
interest balance of this Note that would otherwise be converted into such fractional share. 
 (2) Conversion and Delivery to
Holder. This Note may be converted in whole or in part, provided that no conversion is for an amount less than 5% of the Aggregate Debt amount of this Note. Upon conversion of this Note in whole or in part, pursuant to Section 2(a)
above, the Holder shall surrender this Note, duly endorsed, at the principal offices of the Company or any transfer agent of the Company. At its expense, the Company will, as soon as practicable thereafter, issue and deliver to such Holder, at such
principal office: 
 (i) a certificate or certificates for the number of shares of Conversion Stock to which such Holder is entitled upon
such conversion, together with any other securities and property to which the Holder is entitled upon such conversion under the terms of this Note, including a check payable to the Holder for any cash amounts payable as described in
Section 2(c)(1) above, and 
  

 -2- 

 (ii) in case such conversion is in part only, a new note (dated the date hereof) of like tenor, equal to
the Aggregate Debt minus that portion of the principal amount and accrued interest being converted by the Holder under this Note. 
 Upon
conversion of this Note, the Company will be forever released from all of its obligations and liabilities under this Note with regard to that portion of the principal amount and accrued interest being converted including without limitation the
obligation to pay such portion of the principal amount and accrued interest and, to the extent that the obligations evidenced by this Note have been converted in whole, upon the Company’s request and at the Company’s expense, the Holder
shall execute such documents, instruments and agreements that the Company may reasonably request to release the security interest in the Company’s assets granted pursuant to the Security Agreement (as defined below). 
 3. Payment. All payments shall be made in lawful money of the United States of America at such place as the Holder hereof may from time to
time designate in writing to the Company. Payment shall be credited first to the accrued interest then due and payable and the remainder applied to principal. Prepayment of this Note may be made without penalty, in whole or in part, upon ten
(10) days prior written notice at any time after [June 31, 2009]. 
 4. Transfer; Successors and Assigns. The terms and
conditions of this Note shall inure to the benefit of and be binding upon the respective successors and assigns of the parties. This Note may be transferred only upon surrender of the original Note for registration of transfer, duly endorsed, or
accompanied by a duly executed written instrument of transfer in form satisfactory to the Company. Thereupon, a new note for the same principal amount and accrued interest will be issued to, and registered in the name of, the transferee. Interest
and principal are payable only to the registered holder of this Note. 
 5. Governing Law. This Note and all acts and
transactions pursuant hereto and the rights and obligations of the parties hereto shall be governed, construed and interpreted in accordance with the laws of the State of Florida, without giving effect to principles of conflicts of law. 

6. Notices. Any notice required or permitted by this Agreement shall be in writing and shall be deemed sufficient upon receipt, when
delivered personally or by courier, overnight delivery service or confirmed facsimile, or 48 hours after being deposited in the U.S. mail as certified or registered mail with postage prepaid, if such notice is addressed to the party to be notified
at such party’s address or facsimile number as set forth below or as subsequently modified by written notice. 
  

 -3- 

 7. Amendments and Waivers. Any term of this Note may be amended only with the written
consent of the Company and the Holder. Any amendment or waiver effected in accordance with this Section 7 shall be binding upon the Company, each Holder and each transferee of this Note. 
 8. Officers and Directors Not Liable. In no event shall any officer or director of the Company be liable for any amounts due or payable
pursuant to this Note. 
 9. Security Interest. This Note is secured by all of the assets of the Company in accordance with the
[ ] Amended and Restated Security Agreement by and between the Company and the Holder dated as of the date hereof (the “Security Agreement”). In case of an Event of Default (as defined in the Security Agreement), the Holder shall
have the rights set forth in the Security Agreement. 
 10. Counterparts. This Note may be executed in any number of
counterparts, each of which will be deemed to be an original and all of which together will constitute a single agreement. 
 11.
Action to Collect on Note. If action is instituted to collect on this Note, the Company promises to pay all costs and expenses, including reasonable attorney’s fees, incurred in connection with such action. 
 12. Loss of Note. Upon receipt by the Company of evidence satisfactory to it of the loss, theft, destruction or mutilation of this Note or
any Note exchanged for it, and indemnity satisfactory to the Company (in case of loss, theft or destruction) or surrender and cancellation of such Note (in the case of mutilation), the Company will make and deliver in lieu of such Note a new Note of
like tenor. 
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 -4- 

 This Secured Convertible Promissory Note was entered into as of the date set forth above. 
  

			
	AGREED TO AND ACCEPTED:
	
	COMPANY:
	
	DIGITAL LIGHTWAVE, INC.
		
	By:	 	 /s/ Kenneth T. Myers

		 	Kenneth T. Myers
		 	President and Chief Executive Officer

  

			
	HOLDER:
	
	OPTEL CAPITAL, LLC
		
	By:	 	 /s/ Al Zwan

	Name:	 	Al Zwan
	Title:	 	President

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