Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 14)

x Access Manager 2000 User Manual
LLB - Line Loopback ............................................................................. 8-41
RLB - Repeater Loopback ..................................................................... 8-42
ELB - Equipment Loopback .................................................................. 8-43
Procedures for loopbacks ...................................................................................... 8-43
CSU loopback options .......................................................................................... 8-46
Activate Repeater Loopback (RLB) ....................................................... 8-46
Activate Line Loopback (LLB) .............................................................. 8-46
Deactivate Network Loopback (PLB or LLB) ....................................... 8-47
Send Inband Loop-Up Code To Far End ................................................ 8-47
Send Inband Loop-Down Code To Far End ........................................... 8-47
Activate PLB .......................................................................................... 8-47
Deactivate PLB ....................................................................................... 8-47
Activate EQPT Loopback (ELB) ........................................................... 8-47
Deactivate EQPT Loopback (ELB and RLB) ........................................ 8-47
Activate Framed ALL-ONEs Signal To Network .................................. 8-47
Deactivate Framed ALL-ONEs Signal To Network .............................. 8-48
Send LLB or PLB Activate Message to Far End (T1.403) ....................8-48
Send LLB or PLB Deactivate Message to Far End (T1.403) .................8-48
Activating/Deactivating DIU loopbacks .......................................................................... 8-48
Loopback descriptions .......................................................................................... 8-48
DIU 2130 and DIU 1130 loopbacks ....................................................... 8-49
DIU 2140 loopbacks ............................................................................... 8-49
Procedure for loopbacks ....................................................................................... 8-50
Testing CSUs .................................................................................................................... 8-52
Testing DIUs .................................................................................................................... 8-59
Sending a test signal ............................................................................... 8-59
APPENDIX A - Key Acronyms and Terms ........................................................................... A-1
APPENDIX B - Modem Configuration ................................................................................. B-1
OSI Protocol Configuration ............................................................................................... B-1
Modem Configuration for OSI Protocol With DTR Lead ..................................... B-1
Modem Configuration for OSI Protocol Without DTR Lead ................................ B-1
Hayes Smartmodem‘ 2400 Configuration ............................................................ B-1
Modem Configuration Commands ........................................................................ B-2
Modem Initialization by CSU or Controller .......................................................... B-2
OSI Compatible Equipment ................................................................................... B-2
TABS Protocol Configuration ........................................................................................... B-5
APPENDIX C - Alarm Report Record Format .......................................................................C-1
Alarm Record Layout ........................................................................................................ C-1
Plain English Alarm Notification ...................................................................................... C-1
Terse Alarm Notification ................................................................................................... C-1