ADTRAN T1-FT1 user manual Internal Timing, Internal Clock Source

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Chapter 1. Introduction

Internal Timing

The TSU is the source of timing. The TSU is configured to use its own internal oscillator as the source of timing. Applications include private line driver circuits where one end is set to network and the other to internal.

See Figure 1-6.

	OSC
T1 XMIT
( D S U )	Network
T1 Receive	Interface
T1 Receive
	NX56K/64K
	DTE CLOCK
	DTE

Figure 1-6. Internal Clock Source

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TSU User Manual

61200060L1-1

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Contents T1-FT1 Data/Channel Service Unit Part Number 1200060L1Page Iii Service REN/SOC FIC UsocPage Important Safety Instructions Warranty and Customer Service Viii Table of Contents Operation Index Index-1 Table of Contents Xii Figure A-1 TSU Complete Menu Diagram List of FiguresList of Figures List of Tables List of Tables T1/FT1 Overview T1 Service OfferingsIntroduction Fractional T1 TSU Overview Functional DescriptionControl FunctionTest Jacks Features InterfacesControl Port Input Network InterfaceNx56/64 Serial Interface Chain Por t Output Adtran PC Program Three Methods of Control Front Panel SnmpTSU Clock Sources Network TimedDTE Timed DTE Clock SourceInternal Timing Internal Clock SourceLoopback Tests TSU TestingSelf Tests Network Loopbacks TSUDTE Interface Loopbacks All OnesApplication 511Power Connection InstallationUNPACK, INSPECT, Power Connection Adtran Shipments IncludeNetwork Pin Connection WiringNetwork PIN Name DescriptionControl PIN Connection Name Description Control In/ChainControl In/Chain In Pin Connection Chain OUT PIN Connection Chain OutChain Out Pin Connection Nx 56k/64/ DTE PIN Connection Nx56k/64k DTEPrimary V.35 Pin Connection PIN Ccitt DescriptionPower UP Testing and Initialization Self TestOperation Methods of OperationALM CancelFront Panel Operation LCD WindowO N F I G General Menu OperationT a T U S Code Z S Setting the Data FieldE T W O R K N N I T Viewing Display Only Data Fields To Exit Any Menu Field Operation or DisplayMenu Structure Four Opening MenusFour Opening Menu Functions TIME/DATE Fact RestoreUtil Software VersionMenu Operation Status Menu1RESET Perf Cntrs NI Perf RPTS, Submenu of 1StatusData Values Minutes Hours15MIN / 24HR Curr ERR/ALM Submenu of 1Status Alarm InvestigatedState Active/Inactive Clear History ERR/ALM Hist Submenu of 1StatusConfiguration Complete Configuration MenuNetwork NI Submenu of 2 Config O R M a T Code Z SXmit PRM Cntrl Port O N T R O L P O R T Alarm SUNIT, Submenu of 2 Config Alarms Data RatePORT, Submenu of Config Rate 56/64Normal Mode of Operation # of ChanUtil 1Time/Date, Submenu of 3UtilM E 0 5 0 7 0 T E 0 8 / 0 5 / 9 Keystroke Summary for Editing Time/Date2Software Rev, Submenu of 3Util 3Reinit Unit, Submenu of 3Util4Address,Submenu of 3Util 5Fact Restore, Submenu of 3UtilE I N I T D D R E S S 0 0 Test Complete Test Menu1Network Tests, Submenu of 4Test Loopback or 3PATTERN R 5 1 1 Error S 5 1 1 Error S = 5 2Run Selftest, Submenu of 4Test3Port Tests submenu of 4Test S T E M S E L F T E S TT E L O O P B C K O F F Operation N I T O R 3 U T I L Testing ExampleFar End Looped Back Test Network Interface TestE T W O R K T E S T S U N S E L F T E S T Press Enter to activate a Remote Payload Loopback Testing Example Figure A-1. TSU Complete Menu Diagram Appendix a TSU Complete MenuAppendix A. TSU Complete Menu DTE Rate = 56K Appendix B DTE Data Rate ChartDTE Data Rate vs DS0s N # of DS0s N Appendix B. DTE Data Rate Chart Index NumericsIndex Repair and Return Presales Inquiries and Applications SupportPost-Sale Support