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Maintenance-Object Repair Procedures
555-233-143
8-1262
Issue 1 May 2002
Read and Clear Board Counters (#887)
This test involves sending commands to read circuit pack error counters located
on the IPSI circuit pack’s Packet Interface circuit. It also verifies the message
interface between the media server and the Packet Interface circuit.
This test checks different circuit pack counters depending on whether the circuit
pack is on the active or standby IPSI.
1–3
FAIL
The test failed. Either maintenance could not establish a loop-around link from
the IPSI’s Packet Interface circuit back to itself or could not receive data that
was sent on one side of the loop-around link.
1. Issue the test packet-interface Uc command to retry the test.
If the same error code is observed, background maintenance software will
automatically attempt to reset the circuit pack and clear the problem.
2. Retry the command and if the test fails, replace the IPSI circuit pack.
3. If the test continues to fail after replacing the IPSI circuit pack, run the test
packet P long command.
If any of the tests fail, the fault may be on the packet bus. See
for recommended repair procedures.
4. If the test continues to fail after the circuit pack is replaced and with no
other alarms associated with the packet bus or circuit packs connected to
the packet bus, follow normal escalation procedures.
PASS
This test passed. The IPSI circuit pack and its interface with the are
functioning properly. If the system is unable to place calls on PNs served by
this IPSI, then:
1. Check for packet-bus errors, and solve those errors first.
2. Check for errors in the PN where calls cannot be completed, and solve
those errors.
3. Check every other circuit pack connected to the packet bus in the same
cabinet. Packet-bus failures are likely to be caused by a faulty circuit pack
connected to the backplane or bent pins on the back plane.
4. Check the IPSI circuit pack’s Packet Interface circuit that serves this PN for
errors, and resolve these errors.
5. If errors continue, escalate.
Table 8-511.
Test #886 Maintenance Loop-Around Test —
Continued
Error
Code
Test
Result
Description / Recommendation
Continued on next page
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 ...