DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures

9-384CARR-POW (Carrier Power Supply)

9
Off-Line Switcher (OLS) Query Test (#127)

This te st qu eries the SYSAM in a PPN o r the EPN Maint enance circuit p ack in an

EPN for the status of the pair of OLSs in the specified carrier. If both OLSs are on

and functioning, then the tes t passes. If both are not on and func tioning, it fails.

Table 9-161. 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 for a maximum of 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 for a maximum of 5 times.
2. If the test continues to ABORT with error code 2000, check for system
powering problems with the A carrier (PPN or EPN). Resolve all
AC-POWER and CARR-POW alarms in a multi-carrier cabinet system
or DC-POWER alarms in a single-carrier cabinet system. Then, repeat
the test.
3. If the test continues to ABORT with a 2000 error code, resolve all
SYSAM errors in the PPN or MAINT (EPN Maintenance circuit pack)
errors in an EPN. Then, repeat the test.
2029
2500 ABORT Internal system error
1. Retry the command at 1-minute intervals for a maximum of 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 all status LEDs 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 cab inet.
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 wil l 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.
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