TONE-BD (Tone-Clock Circuit)
Issue 1 May 2002
8-1667
555-233-143
Port Networks with a Single Tone-Clock
Circuit Pack
This procedure is destructive.
1. Pull out the defective IPSI or Tone-Clock circuit pack. This will remove the
clocks and cause the system to activate emergency measures. If this is an
IPSI supported port network, use the busyout ipserver-interface
command:
■
All calls to and from the EPN will drop, and the EPN will activate
Emergency Transfer within about one minute. But the rest of the
system should operate normally.
2. Insert a new IPSI or Tone-Clock circuit pack. The system will detect the
return of the clocks and will automatically recover as follows:
■
The system will reset the EPN (EPN cold restart), and all of the
EPN’s red LEDs will come on and go off within 30 seconds.
3. If the red LEDs come on but do not go off within 30 seconds, pull the circuit
pack out and reseat it. If the LEDs perform as expected this time, continue
with step 6. Otherwise, there may be a problem with the TDM bus;
possibly a bent pin in the IPSI or Tone-Clock circuit pack’s slot. Follow the
directions in the TDM-BUS maintenance section.
4. If the red LEDs did light, as explained above, then go to Step 6. If the red
LEDs do NOT light, as explained above, then go on to Step 5.
5. Restart the affected port network:
■
In an EPN, restart the EPN by resetting its Expansion Interface
circuit pack via the reset port-network PN# level 2 command,
using the port network’s number of the affected EPN. (Use the list
cabinet UU command to determine the port network’s number for a
given cabinet and carrier.)
6. Test the new IPSI or Tone-Clock circuit pack to verify that it is functioning
properly, using the test tone-clock UUC long command, and verify that
the system is operational by placing several phone calls. Where possible,
try calls into, out from, and within the affected port network.
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 ...