Document:

Secured Convertible Promissory Note (New Commitment Loans)

 Exhibit 10.3 
 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 GRID CONVERTIBLE PROMISSORY NOTE

 (NEW COMMITMENT LOANS) 
  

			
	 $2,500,000.00
	  	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 Two Million, Five Hundred Thousand Dollars ($2,500,000.00) or,
if less, the principal amount of all loans made by the Holder to the Company under the terms of this Secured Grid Convertible Promissory Note (New Commitment Loans) (this “Note”) (such loans, collectively the “New Commitment
Loans” and individually each a “New Commitment Loan”), 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. Borrowing Procedures, Etc. 
 (a) Each New Commitment Loan may be requested by the Company pursuant to a written notice in accordance with Section 2.1(a) of the Credit and
Restructuring Agreement. 
 (b) The amount and the rate of interest for each New Commitment Loan shall be endorsed by the Holder on
Schedule 1 attached hereto or, at the Holder’s option, in its records, which schedule or records shall be conclusive, absent manifest error. 
 2. Maturity. 
 (a) Unless converted as provided in Section 3, (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)). 
 3. 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 3(a) above, that the Proposals be approved at the Stockholder Meeting by the affirmative vote in person or by proxy
of a majority of all 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 2(b)(i) above. 
  

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 (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 3(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 3(c)(1) above, and 
 (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). 
 4. 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. 
 5. 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 

  

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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. 
 6.
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. 
 7. 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. 
 8. 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 8
shall be binding upon the Company, each Holder and each transferee of this Note. 
 9. 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. 
 10. 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. 
 11. 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. 
 12. 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. 
 13. 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. 
 [Remainder of
this page intentionally left blank.] 
  

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 This Secured Grid 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

 Schedule 1 
 Schedule to Secured Grid Convertible Promissory Note (New Commitment Loan) dated 
 April 4, 2008 of
Digital Lightwave, Inc. 
 LOANS AND PRINCIPAL PAYMENTS 
  

											
	 Date
	 	Amount of
Loan Made	 	Rate	 	Amount of
Principal
Repaid	 	Unpaid
Principal
Balance	 	Notation
Made byAmended and Restated Security Agreement

 Exhibit 10.4 
 DIGITAL LIGHTWAVE, INC. 
 AMENDED AND RESTATED SECURITY AGREEMENT 
 This Amended and Restated Security Agreement (this “Agreement”) is made as of April 4, 2008, by Digital Lightwave, Inc., a Delaware
corporation (the “Debtor”), in favor of Optel Capital, LLC, a Delaware limited liability company (the “Secured Party”). 
 RECITALS 
 A. The Debtor and the Secured Party previously entered into that certain Twenty
Second Amended and Restated Security Agreement, dated as of September 16, 2004 (the “Existing Security Agreement”), pursuant to which the Debtor granted to the Secured Party a security interest in all of the Debtor’s
assets upon the terms and subject to the conditions therein, to secure the Debtor’s timely repayment of its obligations under those several secured promissory notes (collectively, the “Prior Secured Promissory Notes”) made
payable to the Secured Party in the aggregate principal amount of $27,945,177, plus unpaid interest thereon equal to $7,708,983 (collectively, the “Outstanding Debt”). 
 B. Debtor and the Secured Party have entered into that certain Credit and Restructuring Agreement, dated as of the date hereof (as amended, restated or
otherwise modified from time to time, the “Credit and Restructuring Agreement”), pursuant to which Secured Party has agreed to restructure the Outstanding Debt and to make additional credit accommodations available to Debtor in the
form of the New Commitment (as defined therein) in accordance with the terms of the Credit and Restructuring Agreement and the Promissory Notes. 
 C. The Secured Party’s obligation to enter into the Credit and Restructuring Agreement, restructure the Outstanding Debt and to make the New Commitment available to the Debtor is subject, among other conditions, to receipt by the
Secured Party of this Security Agreement, duly executed by the Debtor. 
 AGREEMENT 
 In consideration of the foregoing and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Debtor
hereby agrees with the Secured Parties as follows: 
 1. Grant of Security Interest. 
 (a) To secure the Debtor’s full and timely payment and performance of the Obligations, the Debtor hereby grants to the Secured Party a continuing
Lien on and security interest (the “Security Interest”) in, all of the Debtor’s right, title and interest in and to all of its personal property and assets (both tangible and intangible), including, without limitation, the
following, whether now owned or hereafter acquired and wherever located: (a) all Receivables; (b) all Equipment; (c) all Fixtures; (d) all General Intangibles; (e) all Inventory; (f) all Investment Property;
(g) all Deposit Accounts; (h) all Cash; (i) all other Goods of the Debtor; (j) all Intellectual Property; and (l) all Proceeds of each of the foregoing and all accessions to, and replacements for, each of the foregoing
(collectively, the “Collateral”). The Security Interest shall be a first and prior interest in all of the Collateral, subject to the Permitted Liens. 

 (b) The following terms shall have the following meanings for purposes of this Agreement: 
 “Account” means any “Account,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in which
the Debtor now holds or hereafter acquires any interest and, in any event, shall include, without limitation, all accounts receivable, book debts, rights to payment and other forms of obligations (other than forms of obligations evidenced by Chattel
Paper, Documents or Instruments) now owned or hereafter received or acquired by or belonging or owing to the Debtor whether or not arising out of goods or software sold or services rendered by the Debtor or from any other transaction, whether or not
the same involves the sale of goods or services by the Debtor and all of the Debtor’s rights in, to and under all purchase orders or receipts now owned or hereafter acquired by it for goods or services, and all of the Debtor’s rights to
any goods represented by any of the foregoing, and all monies due or to become due to the Debtor under all purchase orders and contracts for the sale of goods or the performance of services or both by the Debtor or in connection with any other
transaction (whether or not yet earned by performance on the part of the Debtor), now in existence or hereafter occurring, including, without limitation, the right to receive the proceeds of said purchase orders and contracts, and all collateral
security and guarantees of any kind given by any Person with respect to any of the foregoing. 
 “Cash” has the meaning set
forth in the Credit and Restructuring Agreement. 
 “Chattel Paper” means any “Chattel paper,” as such term is
defined in the UCC, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 
 “Credit Documents” means and includes the Credit and Restructuring Agreement, the Prior Secured Promissory Notes, each Promissory Note, this Agreement, any UCC-1 Financing Statement filed herewith and all other documents,
instruments and agreements delivered by the Debtor in connection with any of the foregoing. 
 “Deposit Accounts” means any
“Deposit accounts,” as such term is defined in the UCC, and includes any checking account, savings account, or certificate of deposit, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any
interest. 
 “Documents” means any “Documents,” as such term is defined in the UCC, now owned or hereafter
acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 
 “Electronic Chattel Paper”
means any “Electronic chattel paper,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 
  

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 “Equipment” has the meaning set forth in the Credit and Restructuring Agreement.

 “Extraordinary Transaction” means any transaction or a series of related transactions, including, without limitation, a
sale of assets of Borrower (excluding sales of inventory in the ordinary course of business), a license or transfer of Borrower’s intellectual property, pursuant to which Borrower receives at the time of such transaction(s), or could receive
during the term of such transaction(s), gross proceeds equal to or in excess of $500,000. 
 “Fixtures” means any
“Fixtures,” as such term is defined in the UCC, together with all right, title and interest of the Debtor in and to all extensions, improvements, betterments, accessions, renewals, substitutes, and replacements of, and all additions and
appurtenances to any of the foregoing property, and all conversions of the security constituted thereby, immediately upon any acquisition or release thereof or any such conversion, as the case may be, now owned or hereafter acquired by the Debtor or
in which the Debtor now holds or hereafter acquires any interest. 
 “General Intangible” means any “General
intangible,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest and, in any event, shall include, without limitation, all right, title and
interest that the Debtor may now or hereafter have in or under any contracts, rights to payment, payment intangibles, confidential information, interests in partnerships, limited liability companies, corporations, joint ventures and other business
associations, permits, goodwill, claims in or under insurance policies, including unearned premiums and premium adjustments, uncertificated securities, deposit, checking and other bank accounts, but shall not include any Intellectual Property
(including the right to receive all proceeds and damages therefrom), rights to receive tax refunds and other payments and rights of indemnification. 
 “Goods” means any “Goods,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 

“Instruments” means any “Instrument,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or
in which the Debtor now holds or hereafter acquires any interest. 
 “Intellectual Property” means, collectively, all
rights, priorities and privileges of the Debtor 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, including, but not limited to, the patents, trademarks and copyrights set forth on Schedule 1 . 

“Inventory” means any “Inventory,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in
which the Debtor now holds or hereafter acquires any interest, and, in any event, shall include, without limitation, all inventory, goods and other personal property that are held by or on behalf of the Debtor for sale or lease or are 

  

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furnished or are to be furnished under a contract of service or that constitute raw materials, work in process or materials used or consumed or to be used or
consumed in the Debtor’s business, or the processing, packaging, promotion, delivery or shipping of the same, and all finished goods, whether or not the same is in transit or in the constructive, actual or exclusive possession of the Debtor or
is held by others for the Debtor’s account, including, without limitation, all goods covered by purchase orders and contracts with suppliers and all goods billed and held by suppliers and all such property that may be in the possession or
custody of any carriers, forwarding agents, truckers, warehousemen, vendors, selling agents or other Persons. 
 “Investment
Property” means any “Investment property,” as such term is defined in the UCC, and includes certificated securities, uncertificated securities, money market funds and U.S. Treasury bills or notes, now owned or hereafter acquired
by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 
 “Letter of Credit Right” means any
“Letter-of-credit right,” as such term is defined in the UCC, now owned or hereafter acquired by the Debtor or in which the Debtor now holds or hereafter acquires any interest, including any right to payment or performance under any letter
of credit. 
 “Lien” has the meaning set forth in the Credit and Restructuring Agreement. 
 “Obligations” has the meaning set forth in the Credit and Restructuring Agreement. 
 “Permitted Liens” shall mean (a) Liens for taxes or other governmental charges not at the time delinquent or thereafter payable
without penalty or being contested in good faith, provided that adequate reserves for the payment thereof have been established in accordance with generally accepted accounting principles, (b) Liens of carriers, warehousemen, mechanics,
materialmen, vendors, and landlords and other similar Liens imposed by law incurred in the ordinary course of business for sums not overdue more than 90 days or being contested in good faith, provided that adequate reserves for the payment thereof
have been established in accordance with generally accepted accounting principles, (c) deposits under workers’ compensation, unemployment insurance and social security laws or to secure the performance of bids, tenders, contracts (other
than for the repayment of borrowed money) or leases, or to secure statutory obligations of surety or appeal bonds or to secure indemnity, performance or other similar bonds in the ordinary course of business, (d) zoning restrictions, easements,
rights-of-way, title irregularities and other similar encumbrances, which alone or in the aggregate are not substantial in amount and do not materially detract from the value of the property subject thereto or interfere with the ordinary conduct of
the business of the Debtor, (e) banker’s Liens and similar Liens (including set-off rights) in respect of bank deposits, (f) Liens in favor of customs and revenue authorities arising as a matter of law to secure payment of customs
duties and in connection with the importation of goods in the ordinary course of the Debtor’s business, (g) Liens on the property or assets of any subsidiary of the Debtor in favor of the Debtor, (h) purchase money Liens that will be
discharged upon the Debtor’s payment of the purchase price for the applicable property, to the extent such Liens relate solely to the property so purchased, (i) leases of specific items of Equipment so long as such Liens do not extend
beyond the equipment so leased and any proceeds applicable thereto, (j) additional security interests or Liens consented 

  

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to in writing by Lender, (k) Liens being terminated substantially concurrently on the date of this Agreement, (l) Liens incurred in connection with
the extension, renewal or refinancing of the indebtedness secured by Liens of the type described in clauses (h) and (i) above, provided that any extension, renewal or replacement Lien is limited to the property encumbered by the existing
Lien and the principal amount of the indebtedness being extended, renewed or refinanced does not increase and (m) the Liens set forth on Schedule 2. 
 “Person” has the meaning set forth in the Credit and Restructuring Agreement. 
 “Proceeds” means “Proceeds,” as such term is defined in the UCC and, in any event, shall include, without limitation, (a) any and all Accounts, Chattel Paper, Instruments, cash or other forms of money or
currency or other proceeds payable to the Debtor from time to time in respect of the Collateral, (b) any and all proceeds of any insurance, indemnity, warranty or guaranty payable to the Debtor from time to time with respect to any of the
Collateral, (c) any and all payments (in any form whatsoever) made or due and payable to the Debtor from time to time in connection with any requisition, confiscation, condemnation, seizure or forfeiture of all or any part of the Collateral by
any governmental authority (or any Person acting under color of governmental authority), (d) the proceeds, damages, or recovery based on any claim of the Debtor against third parties (i) for past, present or future infringement of any
copyright, patent or patent license or (ii) for past, present or future infringement or dilution of any trademark or trademark license or for injury to the goodwill associated with any trademark, trademark registration or trademark licensed
under any trademark license and (e) any and all other amounts from time to time paid or payable under or in connection with any of the Collateral. 
 “Promissory Notes” has the meaning set forth in the Credit and Restructuring Agreement 
 “Receivables” means all of the Debtor’s Accounts, Instruments, Documents, Chattel Paper, Supporting Obligations, and letters of credit and Letter of Credit Rights. 
 “Supporting Obligation” means any “Supporting obligation,” as such term is defined in the UCC, now owned or hereafter acquired
by the Debtor or in which the Debtor now holds or hereafter acquires any interest. 
 “UCC” has the meaning set forth in the
Credit and Restructuring Agreement. 
 Unless otherwise defined herein, all capitalized terms used herein and defined in the Credit and
Restructuring Agreement and the Promissory Notes shall have the respective meanings given to those terms therein, and terms that are defined in the UCC and used herein shall have the meanings given to them in the UCC. 
 2. Representations and Warranties. The Debtor hereby represents and warrants to the Secured Party that: 
 (a) Ownership of Collateral. The Debtor is the legal and beneficial owner of the Collateral (or, in the case of after-acquired Collateral,
at the time the Debtor acquires rights in the Collateral, will be the legal and beneficial owner thereof). Except for the Security Interest granted to the Secured Party pursuant to this Agreement, the Debtor has rights in or the power to 

  

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transfer the Collateral free and clear of any adverse Lien, security interest or encumbrance except for Permitted Liens. Except for the financing statements
listed in Schedule 2, no financing statements covering any Collateral or any proceeds thereof are on file in any public office (other than filings listing the Secured Party as the secured party). 
 (b) Valid Security Interest. Other than with respect to the Collateral set forth on Schedule 2, the Security Interest granted
pursuant to this Agreement will constitute a valid and continuing first priority, perfected security interest in favor of the Secured Party in the Collateral for which perfection is governed by the UCC or filing with the United States Copyright
Office or United States Patent and Trademark Office. Such Security Interest will be prior to all other Liens on the Collateral, subject to the Permitted Liens. 
 (c) Organization and Good Standing. Except as set forth on Schedule 2(c), the Debtor has been duly incorporated, and is validly existing and in good standing, under the laws of the State of
Delaware. 
 (d) Location, State of Organization and Name of the Debtor. The Debtor’s state of organization is
Delaware and the Debtor’s exact legal name as it appears in the official filings in the State of Delaware is as set forth in the first paragraph of this Agreement. The Debtor has only one jurisdiction of organization. 
 (e) Location of Equipment and Inventory. All Equipment and Inventory are (i) located at the locations indicated on Schedule 3
(ii) in transit to such locations or (iii) in transit to a third party purchaser which will become obligated on a Receivable to the Debtor upon receipt. Except for Equipment and Inventory referred to in clauses (ii) and (iii) of
the preceding sentence, the Debtor has exclusive possession and control of the Inventory and Equipment. 
 (g) Delivery of
Items. Schedule 4 lists all Instruments (other than checks received in the ordinary course of business), Letter-of-Credit Rights, Electronic Chattel paper and Chattel Paper of the Debtor as of the date hereof. Upon the written
request of the Secured Party, the Debtor will deliver to the Secured Party, together with all necessary stock powers, endorsements, assignments and other necessary instruments of transfer, the originals of all Receivables consisting of instruments
and Chattel Paper and the originals of all certificated securities owned directly by the Debtor. 
 (h) Receivables. Each
Receivable is genuine and enforceable against the party obligated to pay the same (an “Account Debtor”) free from any right of rescission, defense, setoff or discount. 
 (i) Insurance. Each insurance policy maintained by the Debtor is validly existing and is in full force and effect. The Debtor is not in
default in any material respect under the provisions of any insurance policy, and there are no facts which, with the giving of notice or passage of time (or both), would result in such a default under any material provision of any such insurance
policy. Set forth in Schedule 5 is a complete and accurate list of the insurance of the Debtor in effect on the date of this Agreement covering fire, public liability, property damage and worker’s compensation, showing as of such
date, (i) the type of insurance carried, (ii) the name of the insurance carrier, and (iii) the amount of each type of insurance carried. 
  

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 (j) Creation of Lien. This Agreement is effective to create a valid and continuing Lien
upon the Collateral. Upon the written request of the Secured Party, the Debtor shall take all action necessary to protect and perfect such Lien on each item of the Collateral. 
 3. [Reserved.] 
 4.
Covenants. The Debtor covenants and agrees with the Secured Party that, from and after the date of this Agreement until the Obligations are paid in full: 
 (a) Other Liens. Except for the Security Interest and Permitted Liens, the Debtor has rights in or the power to transfer the Collateral and its title and will be able to do so hereafter free from any
adverse Lien, security interest or encumbrance, and the Debtor will defend the Collateral against the claims and demands of all persons at any time claiming the same or any interest therein. 
 (b) Further Documentation. At any time and from time to time, upon the written request of the Secured Party, and at the sole expense of the
Debtor, the Debtor will promptly and duly authenticate and deliver such further instruments and documents and take such further action as the Secured Party may reasonably request for the purpose of obtaining or preserving the full benefits of this
Agreement and of the rights and powers herein granted including, without limitation, filing any financing or continuation statements under the UCC in effect with respect to the Liens created hereby. The Debtor also hereby authorizes the Secured
Party to file any such financing, amendment or continuation statement without the authentication of the Debtor to the extent permitted by applicable law. A reproduction of this Agreement shall be sufficient as a financing statement (or as an exhibit
to a financing statement on form UCC-1) for filing in any jurisdiction. 
 (c) Indemnification. The Debtor agrees to defend,
indemnify and hold harmless the Secured Party against any and all liabilities, costs and expenses (including, without limitation, legal fees and expenses) (“Liabilities”): (i) with respect to, or resulting from, any delay in
paying, any and all excise, sales or other taxes which may be payable or determined to be payable with respect to any of the Collateral, (ii) with respect to, or resulting from, any delay in complying with any law, rule, regulation or order of
any governmental authority applicable to any of the Collateral or (iii) in connection with any of the transactions contemplated by this Agreement. 
 (d) Maintenance of Records. The Debtor will keep and maintain at its own expense complete and satisfactory, in all material respects, records of the Collateral. 
 (e) Inspection Rights. The Secured Party shall have full access during normal business hours, upon prior notice and in a manner that will
not interfere with the normal business operations of the Debtor, to all the books, correspondence and other records of the Debtor relating to the Collateral. The Secured Party or its representatives may examine such records and make photocopies or
otherwise take extracts from such records. The Debtor agrees to render to the Secured Party, at the Debtor’s expense, such clerical and other assistance as the Secured Party may reasonably request with regard to the exercise of its rights
pursuant to this paragraph. 
  

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 (f) Compliance with Laws, etc. The Debtor (i) will comply with all laws, rules,
regulations and orders of any governmental authority applicable to any part of the Collateral or to the operation of the Debtor’s business, the failure of which to comply with will have a material adverse effect on the Debtor, and
(ii) shall not use or permit any Collateral to be used in violation of any provision of any Credit Document, any law, rule or obligation or order of any governmental authority, or any policy of insurance covering the Collateral;
provided, however, that in each case, the Debtor may contest any such law, rule, regulation or order; in any reasonable manner which does not, in the reasonable opinion of the Secured Party, adversely affect the Secured Party’s
rights or the priority of its Liens on the Collateral. 
 (g) Payment of Obligations. The Debtor will pay promptly when due all
taxes, assessments and governmental charges or levies imposed upon the Collateral or with respect to any of its income or profits derived from the Collateral, as well as all claims of any kind (including, without limitation, claims for labor,
materials and supplies) against or with respect to the Collateral, except for amounts contested by the Debtor in good faith through appropriate proceedings. 
 (h) Limitation on Liens on Collateral. The Debtor will not create, incur or permit to exist, will defend the Collateral against, and will take such other action as is necessary to remove, any Lien or
claim on or to the Collateral, other than the Security Interest and Permitted Liens, and will defend the right, title and interest of the Secured Party in and to any of the Collateral against the claims and demands of all other persons. 

(i) Limitations on Dispositions of Collateral. The Debtor will not sell, transfer, lease, or otherwise dispose of any of the Collateral,
or attempt, offer or contract to do so other than (i) dispositions of Inventory in the ordinary course of the Debtor’s business or (ii) the sale of obsolete or unneeded Equipment in the ordinary course of business; provided,
however, that the Debtor will be allowed to grant licenses to its products and related documentation in the ordinary course of business and to establish or provide for escrows of related intellectual property in connection therewith.

 (j) Further Identification of Collateral. The Debtor will furnish to the Secured Party from time to time statements and
schedules further identifying and describing the Collateral and such other reports in connection with the Collateral as the Secured Party may reasonably request, all in detail acceptable to the Secured Party. 
 (k) Notice of Change of State of Incorporation. Without 30 days’ prior written notice to the Secured Party, the Debtor shall not
(i) change the Debtor’s name, state of incorporation or organization, organizational identification number or place of business (or, if the Debtor has more than one place of business, its chief executive office), or the office in which the
Debtor’s records relating to Receivables are kept, or (ii) keep Collateral consisting of Chattel Paper and documents at any location other than its chief executive office. 
  

 -8- 

 (l) Future Commercial Tort Claims. The Debtor will promptly give notice to the Secured
Party upon the initiation of any commercial tort claim. The Debtor hereby authorizes the Secured Party to amend this Agreement (without any further action or consent from the Debtor) to include any such commercial tort claim as Collateral hereunder.

 (m) Deposit Accounts. Upon the written request of the Secured Party, for each deposit account maintained by the Debtor, the
Debtor shall, along with the bank or other depository institution at which such deposit account is maintained (the “Depositary Bank”), execute and deliver to the Secured Party a Deposit Account Control Agreement in form and
substance reasonably satisfactory to the Secured Party. If requested by the Secured Party, the Debtor shall also obtain a blocked account, lockbox or similar agreement with all or certain Depository Banks. Without ten days prior written notice to
the Secured Party, the Debtor shall not establish any deposit account not set forth on Schedule 6. 
 (n) Collection of
Receivables. The Debtor shall collect, enforce and receive delivery of the Receivables in accordance with past practice. 
 (o)
Insurance. The Debtor shall (i) maintain and keep in force insurance of the types and in amounts customarily carried from time to time during the term of this Agreement in its lines of business, including fire, public liability,
property damage and worker’s compensation, such insurance to be carried with companies and in amounts satisfactory to the Secured Party, (ii) deliver to the Secured Party from time to time, as the Secured Party may request, schedules
setting forth all insurance then in effect, and (iii) deliver to the Secured Party copies of each policy of insurance which replaces, or evidences the renewal of, each existing policy of insurance at least 15 days prior to the expiration of
such policy. The Secured Party shall be named as additional insured or additional loss payee, as appropriate, on all liability and property insurance of the Debtor and such policies shall contain such additional endorsements as shall be required by
the Secured Party. 
 (p) Mortgagee Waivers. The Debtor shall use its commercially reasonable efforts to obtain waivers or
subordinations of Liens from landlords and mortgagees, and the Debtor shall, in all instances, obtain signed acknowledgements of the Secured Party’s Liens from bailees having possession of any of the Debtor’s Collateral that they hold such
Collateral for the benefit of the Secured Party pursuant to Section 9-313(c) of the UCC. 
 (q) Letters of Credit. If the
Debtor is or becomes the beneficiary of a letter of credit, the Debtor shall promptly, and in any event within two business days after becoming a beneficiary, notify the Secured Party thereof and enter into a tri-party agreement with the Secured
Party and the issuer or confirmation bank with respect to such Letter of Credit Rights assigning such Letter of Credit Rights to the Secured Party and directing all payments thereunder to the Secured Party, all in form and substance satisfactory to
the Secured Party. 
 (r) Electronic Chattel Paper. The Debtor shall take all steps reasonably necessary to grant the Secured
Party control of all Electronic Chattel Paper in accordance with the UCC and all “transferable records” as defined in each of the Uniform Electronic Transactions Act and the Electronic Signatures in Global and National Commerce Act.

  

 -9- 

 (s) Intellectual Property Matters. The Debtor shall notify the Secured Party immediately if
it knows or has reason to know (i) that any application or registration relating to any of its Intellectual Property that is material to the operation of its business may become abandoned or dedicated, or (ii) of any adverse determination
or development (including the institution of, or any such determination or development in, any proceeding in the United States Patent and Trademark Office, the United States Copyright Office or any court) regarding the Debtor’s ownership of any
Intellectual Property that is material to the operation of its business, its right to register the same, or to keep and maintain the same. 
 (t) Intellectual Property Applications. In no event shall the Debtor, either itself or through any agent, employee, licensee or designee, file an application for the registration of any patent, trademark or copyright with the
United States Patent and Trademark Office, the United States Copyright Office or any similar office or agency without giving the Secured Party prior written notice thereof, and, upon request of the Secured Party, the Debtor shall execute and deliver
any and all security documents as the Secured Party may request to evidence the Secured Party’s Lien on such Intellectual Property and the general intangibles of the Debtor relating thereto or represented thereby. The Debtor hereby authorizes
the Secured Party to amend this Agreement (without any further action or consent from the Debtor) to include any such patent, trademark or copyright as Collateral hereunder. 
 (u) Intellectual Property Abandonment. The Debtor shall take all actions reasonably necessary or requested by the Secured Party to maintain
and pursue each application, to obtain the relevant registration and to maintain the registration of its Intellectual Property, including the filing of applications for renewal, affidavits of use, affidavits of noncontestability and opposition and
interference and cancellation proceedings. 
 (v) Protection of Intellectual Property. In the event that any of the
Debtor’s Intellectual Property is infringed upon, or misappropriated or diluted by a third party, the Debtor shall notify the Secured Party promptly after the Debtor learns thereof. The Debtor shall, unless the Secured Party shall determine
that such Intellectual Property is in no way material to the conduct of its business or operations, promptly sue for, and seek recovery of any and all damages resulting from such infringement, misappropriation or dilution, and shall take such other
actions as the Secured Party shall deem necessary under the circumstances to protect such Intellectual Property. 
 (w) Chattel
Paper. The Debtor shall type, print or stamp conspicuously on the face of all original copies of all Collateral consisting of Chattel Paper and Documents not in the possession of the Secured Party having a value in excess of $100,000 a
legend satisfactory to the Secured Party indicating that such Chattel Paper is subject to the security interest granted hereby. 
 (x)
Limitation on Filing of Financing Statements. The Debtor acknowledges that it is not authorized to file any financing statement or amendment or termination statement with respect to any financing statement without the prior written
consent of the Secured Party and agrees that it will not do so without the prior written consent of the Secured Party, subject to the Debtor’s rights under Section 9-509(d)(2) of the UCC. 
  

 -10- 

 (aa) Negative Covenants. Without the Secured Party’s prior written consent (which
consent will not be unreasonably withheld, delayed, or conditioned), Debtor shall not do any of the following: 
 (i) Merge or consolidate
with another corporation or entity (except that any wholly-owned subsidiary of Debtor may merge into Debtor or into any other wholly-owned subsidiary of Debtor); 
 (ii) Acquire any fixed assets, in any transaction or series of transactions pursuant to which Borrower pays at the time of such transaction(s), or could pay during the term of such transaction(s), a purchase price
equal to or in excess of $500,000; 
 (iii) Enter into any Extraordinary Transaction; 
 (iv) Sell or transfer any assets, except for the (i) sale of finished Inventory in the ordinary course of Debtor’s business, (ii) the
sale of obsolete or unneeded Equipment in the ordinary course of business; or (iii) the consummation of an Extraordinary Transaction; 
 (v) Make any loans of any money or other assets, except for loans to subsidiaries of the Debtor; 
 (vi) Except as otherwise set
forth on Schedule 4(vi) (both with respect to existing debts and future debts), incur and/or have outstanding any debts for borrowed money in an aggregate amount in excess of $25,000; 
 (vii) Guarantee or otherwise become liable with respect to the obligations of another party or entity, except for (i) the endorsement of
instruments for collection or deposit in the ordinary course of business or (ii) guarantees for the benefit of subsidiaries of the Debtor; 
 (viii) Grant any Liens on any of its assets or property, other than Permitted Liens; 
 (ix) pay or declare any dividends on
Debtor’s stock (except for dividends payable solely in stock of Debtor); 
 (x) Redeem, retire, purchase or otherwise acquire, directly
or indirectly, any of Debtor’s stock (other than repurchases from employees and consultants in connection with the termination of such Person’s employment or consulting arrangement with Debtor); 
 (xi) Dissolve or elect to dissolve; 
 (xii) Prepay, redeem, purchase, defease or otherwise satisfy in any manner prior to the scheduled payment thereof any indebtedness for borrowed money (other than the Obligations) or lease obligations in an aggregate amount equal to or
greater than $10,000; 
  

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 (xiii) Amend, modify or otherwise change the terms of any document, instrument or agreement evidencing
indebtedness for borrowed money (other than the Obligations) or lease obligations or settle or otherwise restructure any outstanding liabilities with any creditor of Debtor in an aggregate amount equal to or greater than $10,000 other than as set
forth on Schedule 4(xiii) attached hereto; or 
 (xiv) amend, modify or otherwise change any of the subordination or other provisions
of any document, instrument or agreement evidencing subordinated debt in an aggregate amount equal to or greater than $10,000 in a manner which adversely affects the rights of the Secured Party. 
 5. Event of Default; the Secured Party’s Appointment as Attorney-in-Fact. 
 (a) Event of Default. For purposes of this Agreement, the occurrence of any one of the following events (each an “Event of
Default”) shall constitute a default hereunder, under the Promissory Notes and the other Credit Documents: 
 (i) Debtor shall
(1) fail to pay when due any principal of, or interest on, any Obligation or (2) fail to pay within five (5) days after the same becomes due, any other amount required under the terms of any Promissory Note or any of the other Credit
Documents; 
 (ii) Debtor shall fail to perform any other non-monetary Obligation set forth in this Agreement or any other Credit Document
which by its nature cannot be cured; 
 (iii) Debtor shall fail to perform any other non-monetary Obligation set forth in this Agreement or
any other Credit Document, which failure is not cured within ten (10) Business Days after written notice of such failure is provided to Debtor or if such failure cannot be cured within such time period, if work on such cure is not begun within
such time period and continuously prosecuted thereafter on a commercially reasonable basis until cured; 
 (iv) Any representation,
warranty, certificate, information or other statement (financial or otherwise) made or furnished by or on behalf of Debtor to the Secured Party in or in connection with this Agreement, any Promissory Note, the Credit and Restructuring Agreement or
any of the other Credit Documents, or as an inducement to the Secured Party to enter into this Agreement, shall be false, incorrect, incomplete or misleading in any material respect when made or furnished; 
 (v) Any levy, assessment, attachment, seizure, Lien or encumbrance (other than a Permitted Lien) is made on all or any part of the Collateral which is
not cured or contested within twenty (20) Business Days after the occurrence of the same; 
 (vi) Except as otherwise disclosed in
writing to and approved in advance by the Secured Party, Debtor breaches any contract or obligation, which has or may reasonably be expected to have a Material Adverse Effect; 
 (vii) Borrower shall breach any covenant, in any material respect, in this Agreement, the Credit and Restructuring Agreement, any Promissory Note or any
of the other Credit Documents or any other agreement entered into between the Debtor and the Secured Party in connection therewith, which breach has or may reasonably be expect to have a Material Adverse Effect; 
  

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 (viii) Dissolution, termination of existence, or appointment of a receiver, trustee or custodian, for
all or any part of the property of, assignment for the benefit of creditors by, or the commencement of any proceeding by Debtor under any reorganization, bankruptcy, arrangement, dissolution or liquidation law or statute of any jurisdiction, now or
in the future in effect; 
 (ix) Commencement of any proceeding against Debtor under any reorganization, bankruptcy, arrangement,
dissolution or liquidation law or statute of any jurisdiction, now or in the future in effect, which is not cured by the dismissal thereof within ninety (90) days after the date commenced; 
 (x) Revocation or termination of, or limitation or denial of liability under, any Credit Document by Debtor; 
 (xi) A Change of Control shall have occurred without the prior written consent of the Secured Party; 
 (xii) Debtor shall conceal, remove or transfer any part of its property, with intent to hinder, delay or defraud its creditors, or make or suffer any
transfer of any of its property which may be fraudulent under any bankruptcy, fraudulent conveyance or similar law; 
 (xiii) Debtor shall
be in default beyond any applicable period of grace or cure under any other agreement involving the borrowing of money, the purchase of property, the advance of credit or any other monetary liability of any kind to any lender or to any Person which
results in the acceleration of payment of such obligation in an amount in excess of $150,000; or 
 (xiv) The failure of the Debtor to
obtain Disinterested Stockholder Approval of the Proposals at the Stockholder Meeting as provided in Section 7.1 of the Credit and Restructuring Agreement. 
 (b) Powers. The Debtor hereby appoints the Secured Party and any officer or agent of the Secured Party, with full power of substitution, as its attorney-in-fact with full irrevocable power and authority
in the place of the Debtor and in the name of the Debtor or its own name, from time to time in the Secured Party’s discretion so long as an Event of Default has occurred and is continuing, for the purpose of carrying out the terms of this
Agreement, to take any appropriate action and to authenticate any instrument which may be necessary or desirable to accomplish the purposes of this Agreement. Without limiting the foregoing, so long as an Event of Default has occurred and is
continuing, the Secured Party shall have the right, without notice to, or the consent of, the Debtor, to do any of the following on the Debtor’s behalf: 
 (i) to pay or discharge any taxes or Liens levied or placed on or threatened against the Collateral; 
  

 -13- 

 (ii) to direct any party liable for any payment under any of the Collateral to make payment of any and
all amounts due or to become due thereunder directly to the Secured Party or as the Secured Party directs; 
 (iii) to ask for or demand,
collect, and receive payment of and receipt for, any payments due or to become due at any time in respect of or arising out of any Collateral; 
 (iv) to commence and prosecute any suits, actions or proceedings at law or in equity in any court of competent jurisdiction to enforce any right in respect of any Collateral; 
 (v) to defend any suit, action or proceeding brought against the Debtor with respect to any Collateral; 
 (vi) to settle, compromise or adjust any suit, action or proceeding described in subsection (v) above and to give such discharges or releases in
connection therewith as the Secured Party may deem appropriate; 
 (vii) to assign any patent right included in the Collateral of the Debtor
(along with the goodwill of the business to which any such patent right pertains), throughout the world for such term or terms, on such conditions, and in such manner, as the Secured Party shall in its sole discretion determine; and 
 (viii) generally, to sell, transfer, pledge and make any agreement with respect to or otherwise deal with any of the Collateral and to take, at the
Secured Party’s option and the Debtor’s expense, any actions which the Secured Party deems necessary to protect, preserve or realize upon the Collateral and the Secured Party’s Liens on the Collateral and to carry out the intent of
this Agreement, in each case to the same extent as if the Secured Party were the absolute owner of the Collateral for all purposes. 
 The
Debtor hereby ratifies whatever actions the Secured Party shall lawfully do or cause to be done in accordance with this Section 5. This power of attorney shall be a power coupled with an interest and shall be irrevocable. 
 (c) No Duty on the Secured Party’s Part. The powers conferred on the Secured Party by this Section 5 are solely to protect the
Secured Party’s interests in the Collateral and shall not impose any duty upon it to exercise any such powers. The Secured Party shall be accountable only for amounts that it actually receives as a result of the exercise of such powers, and
neither the Secured Party nor any of its officers, directors, employees or agents shall, in the absence of willful misconduct or gross negligence, be responsible to the Debtor for any act or failure to act pursuant to this Section 5.

 6. Performance by the Secured Party of the Debtor’s Obligations. If the Debtor fails to perform or comply with any of
its agreements or covenants contained in this Agreement and the Secured Party performs or complies, or otherwise causes performance or compliance, with such agreement or covenant in accordance with the terms of this Agreement, then the expenses of
the Secured Party incurred in connection with such performance or compliance shall be payable by the Debtor to the Secured Party on demand and shall constitute Obligations secured by this Agreement. 
  

 -14- 

 7. Remedies. If an Event of Default has occurred and is continuing, the Secured Party may
exercise, in addition to all other rights and remedies granted to it in this Agreement and in any other instrument or agreement relating to the Obligations, all rights and remedies of a secured party under the UCC. Without limiting the foregoing,
the Secured Party, without demand of performance or other demand, presentment, protest, advertisement or notice of any kind (except any notice required by law) to or upon the Debtor or any other person (all of which demands, defenses, advertisements
and notices are hereby waived), may in such circumstances collect, receive, appropriate and realize upon any or all of the Collateral, and/or may sell, lease, assign, give an option or options to purchase, or otherwise dispose of and deliver any or
all of the Collateral (or contract to do any of the foregoing), in one or more parcels at a public or private sale or sales, at any exchange, broker’s board or office of the Secured Party or elsewhere upon such terms and conditions as the
Secured Party may deem advisable, for cash or on credit or for future delivery without assumption of any credit risk. The Secured Party shall have the right upon any such public sale or sales and, to the extent permitted by law, upon any such
private sale or sales, to purchase all or any part of the Collateral so sold, free of any right or equity of redemption in the Debtor, which right or equity is hereby waived or released. The Secured Party shall apply the net proceeds of any such
collection, recovery, receipt, appropriation, realization or sale, after deducting all reasonable expenses incurred therein or in connection with the care or safekeeping of any of the Collateral or in any way relating to the Collateral or the rights
of the Secured Party under this Agreement (including, without limitation, reasonable attorneys’ fees and expenses) to the payment in whole or in part of the Obligations, in such order as the Secured Party may elect, and only after such
application and after the payment by the Secured Party of any other amount required by any provision of law, need the Secured Party account for the surplus, if any, to the Debtor. To the extent permitted by applicable law, the Debtor waives all
claims, damages and demands it may acquire against the Secured Party arising out of the exercise by the Secured Party of any of its rights hereunder. If any notice of a proposed sale or other disposition of Collateral shall be required by law, such
notice shall be deemed reasonable and proper if given at least ten days before such sale or other disposition. The Debtor shall remain liable for any deficiency if the proceeds of any sale or other disposition of the Collateral are insufficient to
pay the Obligations and the fees and disbursements of any attorneys employed by the Secured Party to collect such deficiency. 
 8.
Limitation on Duties Regarding Preservation of Collateral. The Secured Party’s sole duty with respect to the custody, safekeeping and preservation of the Collateral, under Section 9-207 of the UCC or otherwise, shall be to
deal with it in the same manner as the Secured Party deals with similar property for its own account. Neither the Secured Party nor any of its directors, officers, employees or agents shall be liable for failure to demand, collect or realize upon
all or any part of the Collateral or for any delay in doing so or shall be under any obligation to sell or otherwise dispose of any Collateral upon the request of the Debtor or otherwise. 
 9. Powers Coupled with an Interest. All authorizations and agencies contained in this Agreement with respect to the Collateral are
irrevocable and are powers coupled with an interest. 
  

 -15- 

 10. No Waiver; Cumulative Remedies. The Secured Party shall not by any act (except by a
written instrument pursuant to Section 12(a) hereof), delay, indulgence, omission or otherwise be deemed to have waived any right or remedy hereunder or to have acquiesced in any default under the Note or any of the other Credit Documents or in
any breach of any of the terms and conditions of this Agreement. No failure to exercise, nor any delay in exercising, on the part of the Secured Party, any right, power or privilege hereunder shall operate as a waiver thereof. No single or partial
exercise of any right, power or privilege hereunder shall preclude any other or further exercise thereof or the exercise of any other right, power or privilege. A waiver by the Secured Party of any right or remedy under this Agreement on any one
occasion shall not be construed as a bar to any right or remedy which the Secured Party would otherwise have on any subsequent occasion. The rights and remedies provided in this Agreement are cumulative, may be exercised singly or concurrently and
are not exclusive of any rights or remedies provided by law. 
 11. Termination of Security Interest. Upon complete and
irrevocable satisfaction of the Obligations, the security interest granted herein shall terminate and all rights to the Collateral shall revert to the Debtor. Upon any such termination, the Secured Party shall authenticate and deliver to the Debtor
such documents as the Debtor may reasonably request to evidence such termination. 
 12. Miscellaneous. 
 (a) Amendments and Waivers. Any term of this Agreement may be amended with the written consent of the Debtor and the Secured Party. Any
amendment or waiver effected in accordance with this Section 12(a) shall be binding upon the parties and their respective successors and assigns. 
 (b) Transfer; Successors and Assigns. The terms and conditions of this Agreement shall be binding upon the Debtor and its successors and assigns, as well as all persons who become bound as a debtor to
this Agreement and inure to the benefit of the Secured Party and its successors and assigns. Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns
any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. 
 (c) Governing Law. This Agreement 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. 
 (d) 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. 
 (e) Titles
and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be considered in construing or interpreting this Agreement. 
  

 -16- 

 (f) 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. 
 (g) Payments Free of Taxes, Etc. All payments made by the Debtor under this Agreement shall be made by the Debtor free and clear of and without deduction for any and all present and future taxes, levies,
charges, deductions and withholdings. In addition, the Debtor shall pay upon demand any stamp or other taxes, levies or charges of any jurisdiction with respect to the execution, delivery, registration, performance and enforcement of this Agreement.
Upon request by the Secured Party, the Debtor shall furnish evidence satisfactory to the Secured Party that all requisite authorizations and approvals by, and notices to and filings with, governmental authorities and regulatory bodies have been
obtained and made and that all requisite taxes, levies and charges have been paid. 
 (h) 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 (i) such provision shall be excluded from this Agreement, (ii) the balance of the
Agreement shall be interpreted as if such provision were so excluded and (iii) the balance of the Agreement shall be enforceable in accordance with its terms. 
 (i) 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 concerning such subject matter are expressly canceled. 
 (j) Amendment
and Restatement. Effective upon execution of this Agreement by the Debtor and the Secured Party, the Existing Security Agreement, is hereby amended and restated in its entirety to read as set forth in this Agreement; provided,
however, that the execution and delivery of this Agreement and the other Credit Documents shall not (a) operate as a waiver of any right, power or remedy of the Secured Party under the Existing Security Agreement and the Prior Secured
Promissory Notes, except to the extent expressly waived in this Agreement and the other Credit Documents, or (b) extinguish or impair any obligations of the Debtor under the Existing Security Agreement or the Prior Secured Promissory Notes
except to the extent any such obligation is actually satisfied by the Debtor. 
 [Signature Page Follows] 
  

 -17- 

 The Debtor and the Secured Party have caused this Agreement to be duly executed and delivered as of the
date first above written. 
  

			
	DEBTOR:
	
	DIGITAL LIGHTWAVE, INC.
		
	By:	 	 /s/ Kenneth T. Myers

		 	Kenneth T. Myers
		 	President and Chief Executive Officer
	
	SECURED PARTY:
	
	OPTEL CAPITAL, LLC
		
	By:	 	 /s/ Al Zwan

	Name:	 	Al Zwan
	Title:	 	President

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