Table of Contents 152-388-100-02, Issue 2
vi June 6, 2000 H2TU-C-388 List 1
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
