EX-10.12.1



 Exhibit 10.12.1 

FIRST AMENDMENT TO 
 CREDIT AND SECURITY AGREEMENTS 
 THIS FIRST AMENDMENT TO CREDIT AND
SECURITY AGREEMENTS (the “Amendment”), dated as of March 13, 2013, is entered into by and among ZHONE TECHNOLOGIES, INC., a Delaware corporation (“Zhone Technologies”), ZTI MERGER SUBSIDIARY III, INC., a Delaware
corporation (“ZTI”; Zhone Technologies and ZTI are sometimes referred to herein individually as a “Borrower” and collectively as the “Borrowers”), PREMISYS COMMUNICATIONS, INC., a Delaware
corporation (“Premisys”), ZHONE TECHNOLOGIES INTERNATIONAL, INC., a Delaware corporation, (“Zhone International”), PARADYNE NETWORKS, INC., a Delaware corporation (“Paradyne Networks”), PARADYNE
CORPORATION, a Delaware corporation (“Paradyne Corporation”; Premisys, Zhone International, Paradyne Networks, and Paradyne Corporation are sometimes referred to herein individually as a “Guarantor” and collectively
as the “Guarantors”), and WELLS FARGO BANK, NATIONAL ASSOCIATION (“Lender”). 
 RECITALS

 A. Borrowers, Guarantors, and Lender are parties to (i) a Credit and Security Agreement, dated March 13, 2012 (as
amended from time to time, the “Domestic Credit Agreement”), and (ii) a Credit and Security Agreement (Ex-Im Subfacility), dated March 13, 2012 (as amended from time to time, the “Ex-Im Credit Agreement”;
and together with the Domestic Credit Agreement, collectively, the “Credit Agreements”). Capitalized terms used in this Amendment have the meanings given to them in the Credit Agreements unless otherwise specified in this Amendment.

 B. Borrowers and Guarantors have requested that certain amendments be made to the Credit Agreements, and Lender is willing to
agree to such amendments pursuant to the terms and conditions set forth herein. 
 NOW, THEREFORE, in consideration of the
premises and of the mutual covenants and agreements herein contained, it is agreed as follows: 
 1. Amendments to Credit Agreements. The
Credit Agreements are amended as follows: 
 1.1 Section 8 of the Credit Agreements. Section 8 of the
Credit Agreements is amended to read in its entirety as follows: 
 “8 FINANCIAL COVENANTS.  

Each Borrower covenants and agrees that, until termination of all obligations of Lender to provide extensions of credit
hereunder and payment in full of the Obligations, Borrowers will comply with each of the following financial covenants: 
 (a)
Minimum Liquidity. Have Liquidity of at least the following: 
  

			
	 Minimum Liquidity
	  	Applicable Period/Test Date
	     $3,000,000
	  	At all times








 (b) Minimum EBITDA. If a Liquidity Trigger Event shall occur,
Borrowers shall achieve EBITDA, for the periods described below, of at least the required amount set forth in the following table for the applicable period set forth opposite thereto (it being understand that such requirement shall be effective
immediately and retroactively) (numbers appearing between “< >” are negative): 
  

			
	 Applicable Amount
	  	Applicable Period
	 $<1,750,000>
	  	Three-month period ending March 31, 2013
	 $<2,000,000>
	  	Six-month period ending June 30, 2013
	 $<2,500,000>
	  	Nine-month period ending September 30, 2013
	 $<2,000,000>
	  	Twelve-month period ending December 31, 2013

 (c) Maximum Capital Expenditures. Shall not incur or contract to incur
Non-Financed Capital Expenditures in excess of $500,000 in payments in the aggregate during the fiscal year ending December 31, 2013. Borrowers shall provide a report to Lender on the status of their Non-Financial Capital Expenditures each
month. 
 Borrowers shall deliver their Projections for subsequent fiscal years to Lender as required in
Section 6.1 and shall work with Lender to set financial covenants for periods beyond those set forth above. Failure to set financial covenants prior to December 31 for each subsequent fiscal year shall constitute an Event of
Default.” 
 2. No Other Changes. Except as explicitly amended by this Amendment or the other Loan Documents delivered in connection
with this Amendment, all of the terms and conditions of the Credit Agreements and the other Loan Documents shall remain in full force and effect and shall apply to any advance or letter of credit thereunder. This Amendment shall be deemed to be a
“Loan Document” (as defined in the Credit Agreements). 
 3. Accommodation Fee. [Intentionally Omitted]. 

4. Conditions Precedent. This Amendment shall be effective when Lender shall have receiveda duly executed original hereof, together with each of
the following, each in substance and form acceptable to Lender in its sole discretion and duly executed by all relevant parties: 
 4.1 Certificates of Authority from the corporate secretaries of the Borrowers and Guarantors; and 

  
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 4.2 Such other matters as Lender may require. 

5. Representations and Warranties. Borrowers and Guarantors hereby represent and warrant to Lender as follows: 

5.1 Borrowers and Guarantors have all requisite power and authority to execute this Amendment and any other agreements or instruments
required hereunder and to perform all of their obligations hereunder, and this Amendment and all such other agreements and instruments have been duly executed and delivered by Borrowers and Guarantors and constitute the legal, valid and binding
obligation of Borrowers and Guarantors, enforceable in accordance with its terms. 
 5.2 The execution, delivery and performance
by Borrowers and Guarantors of this Amendment and any other agreements or instruments required hereunder have been duly authorized by all necessary corporate action and do not (i) require any authorization, consent or approval by any governmental
department, commission, board, bureau, agency or instrumentality, domestic or foreign, (ii) violate any provision of any law, rule or regulation or of any order, writ, injunction or decree presently in effect, having applicability to Borrowers or
Guarantors, or the certificates of incorporation or by-laws of Borrowers or Guarantors, or (iii) result in a breach of or constitute a default under any indenture or loan or credit agreement or any other agreement, lease or instrument to which
Borrowers or Guarantors are a party or by which Borrowers and Guarantors or their respective properties may be bound or affected. 
 5.3 All of the representations and warranties contained in Section 5 and Exhibit D of the Credit Agreements are true and correct on and as of the date hereof as though made on and as of
such date, except to the extent that such representations and warranties relate solely to an earlier date (in which case such representations and warranties continue to be true and correct as of such earlier date). 

6. References. All references in the Credit Agreements to “this Agreement” shall be deemed to refer to the Credit Agreements as amended
hereby; and any and all references in the other Loan Documents to the Credit Agreements shall be deemed to refer to the Credit Agreements as amended hereby. 
 7. No Waiver. The execution of this Amendment and the acceptance of all other agreements and instruments related hereto shall not be deemed to be a waiver of any Default or Event of Default under
the Credit Agreements or a waiver of any breach, default or event of default under any Loan Document or other document held by Lender, whether or not known to Lender and whether or not existing on the date of this Amendment. 

8. Release. Borrowers and Guarantors hereby absolutely and unconditionally release and forever discharge Lender, and any and all participants,
parent corporations, subsidiary corporations, affiliated corporations, insurers, indemnitors, successors and assigns thereof, together with all of the present and former directors, officers, agents, attorneys, and employees of any of the foregoing,
from any and all claims, demands or causes of action of any kind, nature or description, whether arising in law or equity or upon contract or tort or under any state or federal 

  
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law or otherwise, which Borrowers or Guarantors have had, now have or have made claim to have against any such person for or by reason of any act, omission, matter, cause or thing whatsoever
arising from the beginning of time to and including the date of this Amendment, whether such claims, demands and causes of action are matured or unmatured or known or unknown. It is the intention of the Borrowers and Guarantors in executing this
release that the same shall be effective as a bar to each and every claim, demand and cause of action specified and in furtherance of this intention each of the Borrowers and Guarantors waives and relinquishes all rights and benefits under
Section 1542 of the Civil Code of the State of California, which provides: 
 “A GENERAL RELEASE DOES NOT EXTEND TO
CLAIMS WHICH THE CREDITOR DOES NOT KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM OR HER MIGHT HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR.” 

The parties acknowledge that each may hereafter discover facts different from or in addition to those now known or believed to be true with respect to
such claims, demands, or causes of action and agree that this instrument shall be and remain effective in all respects notwithstanding any such differences or additional facts. 
 9. Costs and Expenses. Borrowers agree to pay all fees and disbursements of counsel to Lender for the services performed by such counsel in connection with the preparation of this Amendment and the
documents and instruments incidental hereto. Borrowers hereby agree that Lender may, at any time or from time to time in its sole discretion and without further authorization by Borrowers, make a loan to Borrowers under the Credit Agreements, or
apply the proceeds of any loan, for the purpose of paying any such fees, disbursements, costs and expenses. 
 10. Miscellaneous. This
Amendment may be executed in any number of counterparts, each of which when so executed and delivered shall be deemed an original and all of which counterparts, taken together, shall constitute one and the same instrument. Transmission by facsimile
or “pdf” file of an executed counterpart of this Amendment shall be deemed to constitute due and sufficient delivery of such counterpart. Any party hereto may request an original counterpart of any party delivering such electronic
counterpart. This Amendmentand the rights and obligations of the parties hereto shall be construed in accordance with, and governed by, the laws of the State of California. In the event of any conflict between this Amendment and the Credit
Agreements, the terms of this Amendment shall govern. 
 [Signature Page Follows] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of
the date first above written. 
  

					
	BORROWERS:
		
		 	ZHONE TECHNOLOGIES, INC.
			
		 	 By:
	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer
		
		 	ZTI MERGER SUBSIDIARY III, INC.
			
		 	By:	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer


  

					
	GUARANTORS:
		
		 	PREMISYS COMMUNICATIONS, INC.
			
		 	By:	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer
		
		 	ZHONE TECHNOLOGIES
		 	INTERNATIONAL, INC.
			
		 	By:	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer
		
		 	PARADYNE NETWORKS, INC.
			
		 	By:	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer
		
		 	PARADYNE CORPORATION
			
		 	By:	 	 /s/ KIRK MISAKA

		 	Name:	 	Kirk Misaka
		 	Title:	 	Chief Financial Officer
	
	LENDER:
		
		 	WELLS FARGO BANK, NATIONAL ASSOCIATION
			
		 	By:	 	 /s/ HARRY L. JOE

		 	Name:	 	Harry L. Joe
		 	Title:	 	Authorized Signatory



  
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