Maintenance-Object Repair Procedures
555-233-143
8-1594
Issue 1 May 2002
Part 2
1. Run set tone-clock to make the currently active Tone-Clock standby.
2. Run test tdm P to determine whether the TDM-bus fault is still present.
If the TDM-bus fault is gone:
a. Replace the formerly active Tone-Clock circuit pack.
b. Run set tone-clock again to make the new Tone-Clock circuit pack
active.
c. Run test tdm P to determine whether the TDM-bus fault is still
present.
If the TDM-bus fault is still present, replace the new Tone-Clock circuit pack
with the originally suspected circuit pack, and continue with Part 3.
Part 3
This part should be used for each individual circuit pack listed in the previous
table. Run this procedure on every circuit pack in the standby PNC. If the
TDM-bus failure still exists (once every standby circuit pack has been tested),
execute reset pnc interchange, followed by set tone-clock to put the currently
active circuit packs into standby mode so that this procedure can be run on each
of them.
1. Remove the inactive suspected circuit pack.
2. As in Procedure 2, determine whether any backplane pins behind the
removed circuit pack’s slot are bent.
3. If the pins are bent, do the following:
a. Remove power as described in the previous warning statement.
b. Straighten or replace the pins.
c. Restore power.
d. Run test tdm P to determine whether the TDM-bus fault is still
present.
If the TDM-bus failure is still present, the problem is with another
circuit pack. Reinsert the originally suspected circuit pack, and
repeat Part 3 for the next circuit pack.
e. If the TDM-bus failure has disappeared, reinsert the circuit pack and
run the test tdm P command to see if the TDM-bus failure is still
present.
If any of the TDM-bus tests fail, replace the suspected circuit pack.
The procedure is finished.
If not, the procedure is finished.
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...