Maintenance-Object Repair Procedures
555-233-143
8-1030
Issue 1 May 2002
Management Terminal Channel Local
Loop-Around Test (#228)
This test is destructive.
This test checks TN775D on-board circuitry associated with the serial link for the
management terminal connection. This test will not cause the local terminal login
to drop, but any data displayed on the terminal while the test is running will be lost.
FAIL
PN’s Maintenance circuit pack did not respond to Sanity Handshake and the
test timed out.
1. Verify that the carrier A power units are good. If the -5 Volt unit is defective
in the A carrier, then communication with the PN’s Maintenance circuit
pack will not be possible.
2. If the -5 Volt unit is good and this test continuously fails, background
maintenance will automatically escalate to an PN’s Maintenance circuit
pack Reset test (#306). Otherwise, manually reset an PN’s Maintenance
circuit pack by issuing the test maintenance long command and
evaluating any generated error codes from Test #306. If Test #306 passes,
this test should also PASS. Use the following steps to determine whether
the PN’s Maintenance circuit pack or its serial link, is defective:
Duplicated Port Network Connectivity (PNC):
1. Switch PNC by entering reset pnc interchange.
2. Run the short test sequence against the PN’s Maintenance circuit pack. If
Test #106 still fails, replace the Maintenance circuit pack and retest.
Otherwise, follow the error routines for any errors that are logged by this
short test.
Unduplicated PNC:
1. Replace the PN’s Maintenance circuit pack, and invoke the short test
sequence against it.
2. If error persists, replace the PN Expansion Interface circuit pack, at a time
when the PN can go down with minimal inconvenience.
3. If the error still persists, the problem is with the actual serial link in A carrier
backplane and not with the PN’s Maintenance circuit pack.
PASS
The communications path to and from the PN’s Maintenance circuit pack is
sane, and the Maintenance circuit pack can read and report the correct PN
cabinet type. The Maintenance circuit pack may still have problems related to
Tests #228, #229, #303, or #306.
Table 8-406.
Test #106 Sanity Handshake Test —
Continued
Error
Code
Test
Result
Description / Recommendation
Continued on next page
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 ...