ADC H2TU-C-388 manual 6

Table of Contents	152-388-100-02, Issue 2
Testing _____________________________________________________________________________ 36
Front-Panel System Alarms.............................................................................................................	36
Alarm Option for DLC Feed .............................................................................................	37
Retiring System Alarms ....................................................................................................	37
Remote LOS and AIS Response .......................................................................................	38
OCT55 Test Pattern with AMI Line Code ......................................................................................	38
Loopback Operation ........................................................................................................................	39
Generic Loopback Commands..........................................................................................	39
Special Loopback Commands...........................................................................................	41
Manual Loopback Session ................................................................................................	42
Loopback Test Procedures ..............................................................................................................	43
General Troubleshooting Tips ..........................................................................................	43
GNLB Test Procedures .....................................................................................................	43
A1LB, A2LB, and A5LB Test Procedures .......................................................................	45
A3LB and A4LB Test Procedures ....................................................................................	47
Appendix A - Specifications ____________________________________________________________ 48
Power Consumption ........................................................................................................................	49
Maximum Power Dissipation ..........................................................................................................	49
Maximum Current Drain .................................................................................................................	49
Loop Attenuation.............................................................................................................................	50
HiGain Line Unit Card-Edge Connector .........................................................................................	50
Network Management Control Bus ..................................................................................	50
Fuse Alarm ........................................................................................................................	51
Craft Port .........................................................................................................................................	51
Appendix B - Functional Operation _____________________________________________________ 52
Timing .............................................................................................................................................	52
Ground Fault Detect ........................................................................................................................	52

Appendix C - Compatibility____________________________________________________________ 53 Appendix D - Product Support _________________________________________________________ 54 Appendix E - Abbreviations____________________________________________________________ 55 Certification and Warranty _____________________________________________ Inside Back Cover

vi June 6, 2000 H2TU-C-388 List 1