ADC H2TU-C-231 6

Table of Contents	LTPH-UM-1109-01, Issue 1
Testing _____________________________________________________________________________ 40
System Alarms.................................................................................................................................	40
Alarm Option for Digital Loop Carrier (DLC) Feed ........................................................	41
Retiring System Alarms ....................................................................................................	41
Remote LOS and AIS Response .......................................................................................	42
OCT55 Test Pattern with AMI Line Code ......................................................................................	42
Loopback Operation ........................................................................................................................	43
Generic Loopback Commands..........................................................................................	43
Special Loopback Commands...........................................................................................	45
Manual Loopback Session ................................................................................................	46
Loopback Test Procedures ..............................................................................................................	47
General Troubleshooting Tips ..........................................................................................	47
GNLB Test Procedures .....................................................................................................	47
A1LB, A2LB, and A5LB Test Procedures .......................................................................	49
A3LB and A4LB Test Procedures ....................................................................................	51
Testing with H2TU-C BERT Generator..........................................................................................	52
Testing with H2TU-R BERT Generator..........................................................................................	53
Appendix A - Specifications ____________________________________________________________ 54
Power Consumption ........................................................................................................................	55
Maximum Power Dissipation ..........................................................................................................	55
Maximum Current Drain .................................................................................................................	55
Loop Attenuation, Insertion Loss, and Reach .................................................................................	56
H2TU-C-231 List 2 Card-Edge Connector .....................................................................................	57
Network Management Control Bus ..................................................................................	57
Fuse Alarm ........................................................................................................................	58
System Alarm Output Pins................................................................................................	58
Craft Port .........................................................................................................................................	58
Appendix B - Functional Operation _____________________________________________________ 59
Timing .............................................................................................................................................	59
Ground Fault Detect ........................................................................................................................	59

Appendix C - Compatibility____________________________________________________________ 60 Appendix D - Product Support _________________________________________________________ 61 Appendix E - Abbreviations____________________________________________________________ 62 Certification and Warranty ______________________________________________ Inside Back Cover

January 9, 2002

H2TU-C-231 List 2