ADTRAN T1-FT1 user manual TSU Testing, Self Tests, Loopback Tests

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Chapter 1. Introduction

TSU Testing

Currently the TSU offers three forms of testing.

Self Test

Loopback Tests

Pattern generation and check

Self Tests

The self test checks the integrity of the internal operation of the electronic components by performing memory tests and by sending and verifying data test patterns through all internal interfaces. Although actual user data cannot be passed during these tests, the self test can be run with the network and DTE interfaces in place and will not disturb any external interface.

The self test automatically executes upon power up. It can also be commanded from a front panel menu or from the control port.

In addition to the specified self tests, background tests are also run on various parts of the internal electronics. These will run during normal operation to confirm continued correct functioning. The background tests include; 1) monitoring the phase locked loop for lock, 2) the standard background network performance monitoring, as required by ANSI T1.403 andAT&T 54016 for which the results are stored.

Loopback Tests

A number of different loopbacks can be invoked locally from the front panel, by T-WATCH commands or remotely by using special inband codes (AT&T D4 network loop up and loop down codes; V.54 loop up/loop down codes for the Nx56k/64k serial interface). Additionally the loopbacks can be remotely controlled by out-of-band commands via the T1 ESF FDL, or from T-WATCH via a modem connection.

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TSU User Manual

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Contents Part Number 1200060L1 T1-FT1 Data/Channel Service UnitPage Iii REN/SOC FIC Usoc ServicePage Important Safety Instructions Warranty and Customer Service Viii Table of Contents Operation Index Index-1 Table of Contents Xii List of Figures Figure A-1 TSU Complete Menu DiagramList of Figures List of Tables List of Tables T1 Service Offerings IntroductionT1/FT1 Overview Fractional T1 Functional Description TSU OverviewFunction Test JacksControl Interfaces FeaturesChain Por t Output Network InterfaceNx56/64 Serial Interface Control Port InputSnmp Three Methods of ControlFront Panel Adtran PC ProgramNetwork Timed TSU Clock SourcesDTE Clock Source DTE TimedInternal Clock Source Internal TimingTSU Testing Self TestsLoopback Tests TSU Network LoopbacksAll Ones DTE Interface Loopbacks511 ApplicationAdtran Shipments Include InstallationUNPACK, INSPECT, Power Connection Power ConnectionPIN Name Description WiringNetwork Network Pin ConnectionControl In/Chain Control In/Chain In Pin ConnectionControl PIN Connection Name Description Chain Out Chain Out Pin ConnectionChain OUT PIN Connection PIN Ccitt Description Nx56k/64k DTEPrimary V.35 Pin Connection Nx 56k/64/ DTE PIN ConnectionSelf Test Power UP Testing and InitializationMethods of Operation OperationLCD Window CancelFront Panel Operation ALMGeneral Menu Operation T a T U SO N F I G Setting the Data Field E T W O R K N N I TCode Z S To Exit Any Menu Field Operation or Display Viewing Display Only Data FieldsFour Opening Menus Menu StructureFour Opening Menu Functions Software Version Fact RestoreUtil TIME/DATEStatus Menu Menu OperationNI Perf RPTS, Submenu of 1Status 1RESET Perf CntrsMinutes Hours 15MIN / 24HRData Values Alarm Investigated State Active/InactiveCurr ERR/ALM Submenu of 1Status ERR/ALM Hist Submenu of 1Status Clear HistoryComplete Configuration Menu ConfigurationO R M a T Code Z S Network NI Submenu of 2 ConfigXmit PRM O N T R O L P O R T Alarm S UNIT, Submenu of 2 ConfigCntrl Port Data Rate AlarmsRate 56/64 PORT, Submenu of Config# of Chan Normal Mode of Operation1Time/Date, Submenu of 3Util UtilKeystroke Summary for Editing Time/Date M E 0 5 0 7 0 T E 0 8 / 0 5 / 93Reinit Unit, Submenu of 3Util 2Software Rev, Submenu of 3Util5Fact Restore, Submenu of 3Util E I N I T D D R E S S 0 04Address,Submenu of 3Util Complete Test Menu Test1Network Tests, Submenu of 4Test Loopback or 3PATTERN 2Run Selftest, Submenu of 4Test R 5 1 1 Error S 5 1 1 Error S = 5S T E M S E L F T E S T T E L O O P B C K O F F3Port Tests submenu of 4Test Operation Network Interface Test Testing ExampleFar End Looped Back Test N I T O R 3 U T I LE 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 Appendix a TSU Complete Menu Figure A-1. TSU Complete Menu DiagramAppendix A. TSU Complete Menu Appendix B DTE Data Rate Chart DTE Data Rate vs DS0s N # of DS0s NDTE Rate = 56K Appendix B. DTE Data Rate Chart Numerics IndexIndex Presales Inquiries and Applications Support Post-Sale SupportRepair and Return