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TDM-BUS (TDM Bus)
Issue 1 May 2002
8-1597
555-233-143
Part 1
1. If spare TDM/LAN cable assemblies and TDM/LAN bus terminators are not
available, go to Part 2 of this procedure.
2. Power down the EPN.
3. Replace every TDM/LAN cable assembly and both TDM/LAN bus
terminators.
4. Restore power to the EPN.
5. Run the test tdm P command to determine whether the TDM-bus fault is
still present.
6. If the TDM-bus fault is resolved, the procedure is finished. Otherwise,
continue with Part 2.
Part 2
1. Terminate the TDM bus so that it extends only across the carrier that
contains the active Expansion Interface.
2. Run the test tdm P command to determine whether the TDM-bus fault is
still present.
If the shortened TDM bus does not extend to a carrier continuing the Tone
Detector circuit pack, the:
■
Non-control channel test (#297) will not be able to run
■
Bus that the non-control channel was on will not be tested.
If this is the case, run the set TDM PC command to move the control
channel to the non-active bus. The status port-network P command will
show which bus is currently active. After the bus switch has occurred, run
the test tdm P command again to determine whether the newly active bus
is faulted.
Another option is to move a Tone Detector circuit pack to an empty slot (if
one is available) in the carrier where the TDM bus is terminated. This
would:
■
Allow both the control channel and non-control channel tests to run
■
Not require the set tdm P command to be run
3. If none of the TDM-bus tests fail, extend the TDM bus to another carrier,
and repeat the procedure in the previous step. When a carrier that causes
the fault to recur is added, perform Procedure 2 for only the circuit packs in
that carrier.
4. If any of the TDM-bus tests fail and Procedures 2 and 3 did not resolve the
problem, the added carrier(s) are defective and must be replaced.
Содержание S8700 Series
Страница 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Страница 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Страница 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Страница 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Страница 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Страница 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...
Страница 1121: ...CARR POW Carrier Power Supply Issue 1 May 2002 8 399 555 233 143 Figure 8 19 Power Distribution Unit J58890CH 1 ...
Страница 1447: ...E DIG RES TN800 reserve slot Issue 1 May 2002 8 725 555 233 143 E DIG RES TN800 reserve slot See ASAI RES ...
Страница 1735: ...LGATE AJ Issue 1 May 2002 8 1013 555 233 143 LGATE AJ See BRI SET LGATE BD See BRI BD LGATE PT See BRI PT ...
Страница 1846: ...Maintenance Object Repair Procedures 555 233 143 8 1124 Issue 1 May 2002 Figure 8 62 TN787 MMI MULTIMEDIA INTERFACE CIRCUIT PACK ...