D/I MUX III User’s Manual
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B7 Alarm ......................................................................................................................................163
BPV Alarm ...................................................................................................................................163
0-DEN Alarm................................................................................................................................163
Loop Codes Alarms......................................................................................................................163
Alarm Contacts...........................................................................................................................................163
Alarm Dialout..............................................................................................................................................164
ACO Button..................................................................................................................................164
Bypass Button..............................................................................................................................164
Bypass........................................................................................................................................................164
Power-Up Sequence ..................................................................................................................................165
Troubleshooting..........................................................................................................................................165
System-Level Troubleshooting..................................................................................................... 167
Board-Level Troubleshooting .......................................................................................................167
Common Equipment and Line Card Testing...............................................................................................168
Defective Units ...........................................................................................................................................168
Line Interface Units (LIUs)............................................................................................................169
T1 Transmission Tests ...............................................................................................................................171
T1 Interfaces ..............................................................................................................................................171
Single Channel Bank Mode..........................................................................................................175
Drop-and-Insert Mode Tests ........................................................................................................177
Software Controlled Loopback Tests..........................................................................................................178
Loopback Tests..........................................................................................................................................179
Channel Bank: Normal Operation ................................................................................................1
79
Channel Bank: Bypass.................................................................................................................180
Channel Bank: Line Loopback .....................................................................................................181
Channel Bank: Payload Loopback ...............................................................................................182
Drop-and-Insert: Normal Operation..............................................................................................183
Drop-and-Insert: Bypass ..............................................................................................................184
Drop-and-Insert: Line Loopback...................................................................................................185
Drop-and-Insert: Payload Loopback............................................................................................ 188
Dual Channel Bank: Normal Operation.......................................................................................190
Dual Channel Bank: Bypass.........................................................................................................190
Dual Channel Bank: Line Loopback............................................................................................191
Dual Channel Bank: Payload Loopback...................................................................................... 194
Software Diagnostics..................................................................................................................................196
OL - Operate Line Card Diagnostics...........................................................................................................196
OD - Operate Diagnostics ..........................................................................................................................197
Performance...............................................................................................................................................200
SB - Set Bit Error Rate Options..................................................................................................................201
Technical Assistance..................................................................................................................................201
D/I Mux III Messages..................................................................................................................................202
Alarm Reporting .........................................................................................................................................205
APPENDIX A. D/I MUX III SPECIFICATIONS........................................................................................
.................208
APPENDIX B. -24 VOLT SYSTEMS.......................................................................................................................213
Common Equipment...................................................................................................................................213
Voice Cards................................................................................................................................................213
APPENDIX C. - ACCESSORIES INSTALLATION...................................................................................................215
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