Table of Contents LTPH-UM-1049-02, Issue 2
vi January 9, 2002 H2TU-C-319 List 4E
Testing _____________________________________________________________________________52
System Alarms.................................................................................................................................52
Alarm Option for the Digital Loop Carrier Feed..............................................................53
Retiring System Alarms....................................................................................................53
Remote LOS and AIS Response.......................................................................................54
OCT55 Test Pattern with AMI Line Code......................................................................................54
Loopback Operation........................................................................................................................55
Generic Loopback Commands..........................................................................................56
Special Loopback Commands...........................................................................................56
SmartJack Loopback Commands......................................................................................57
Manual Loopback Session...............................................................................................................57
Activating Manual Metallic Test Access........................................................................................ 58
in-band Loopback Sessions.............................................................................................................59
General Troubleshooting Tips..........................................................................................59
GNLB Test Procedures.....................................................................................................59
A2LB Test Procedures......................................................................................................61
A3LB and A4LB Test Procedures....................................................................................64
SmartJack Test Procedure.................................................................................................64
Appendix A - Specifications____________________________________________________________65
Power Consumption........................................................................................................................66
Maximum Power Dissipation..........................................................................................................66
Maximum Current Drain.................................................................................................................66
Loop Attenuation, Insertion Loss, and Reach.................................................................................67
H2TU-C-319 List 4E Card-Edge Connector...................................................................................68
Network Management Control Bus..................................................................................69
Fuse Alarm........................................................................................................................69
System Alarm Output Pin.................................................................................................70
Craft Port.........................................................................................................................................71
Appendix B - Functional Operation_____________________________________________________72
Timing.............................................................................................................................................73
Ground Fault Detect........................................................................................................................73
Appendix C - Compatibility______________________________________________________ ______74
Appendix D - Product Support_________________________________________________________75
Technical Support............................................................................................................................75
Returns.............................................................................................................................................75
Appendix E - Abbreviations____________________________________________________________76
Certification and Warranty _____________________________________________Inside Back Cover