CARR-POW (Carrier Power Supply)
Issue 1 May 2002
8-407
555-233-143
Off-Line Switcher (OLS) Query Test (#127)
This test queries the the EPN’s Maintenance for the status of the pair of OLSs in
the specified carrier. If both OLSs are on and functioning, then the test passes. If
both are not on and functioning, it fails.
Table 8-165.
Test #127 OLS Query Test
Error
Code
Test
Result
Description / Recommendation
1000
ABORT
System resources required for this test are not available.
1. Retry the command at 1-minute intervals up to 5 times.
2000
ABORT
Response to the test request was not received within the allowable time period.
1. Retry the command at 1-minute intervals up to 5 times.
2. If the test continues to ABORT with error code 2000, check for system
powering problems with the EPN’s A carrier. Resolve every AC-POWER
and CARR-POW alarm in a multicarrier-cabinet system or DC-POWER
alarm in a single-carrier cabinet system. Then, repeat the test.
3. If the test continues to ABORT with a 2000 error code, resolve any errors
against the EPN’s MAINT (Maintenance circuit pack). Then, repeat the
test.
2029,
2500
ABORT
Internal system error
1. Retry the command at 1-minute intervals up to 5 times.
FAIL
AC-POWERED SYSTEMS
There is a problem with one or both OLSs on the tested carrier.
1. For each OLS that has every status LED OFF, check the AC input to the
OLS at the OLS outlet. If there is no AC, then check the appropriate fuses
for the affected OLS. Replace open fuses. If the fuses open again or AC
does not show up at the OLS outlet, then there is probably a power wiring
problem in the cabinet.
2. At this point, AC should be present at the OLS outlet. Use the recycle
carrier UUC command (where UUC is the appropriate cabinet and carrier)
in an attempt to bring back the OLSs for this carrier. If the test passes, the
trouble is cleared. If the test does not pass, one OLS or both, in the tested
carrier is defective. If only one OLS is defective, then the status LEDs on
the healthy OLS will light green for a moment. When the recycle test
determines that both OLSs are defective, the software will turn off power to
both the good and defective OLSs. This will cause the status LED(s) on
the good OLS to light red.
3. Unplug both OLSs, and wait approximately 1-minute to allow the OLSs to
cool down. Plug in the OLSs. If either OLS is operating properly (the
status LEDs show green), then replace the defective OLS(s). See OLS
Replacement Procedures in this section.
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 ...