Nortel DMS-100 Series Maintenance Manual page 592

11-4 Troubleshooting chart
Table 11-1 OPM alarm clearing (Sheet 3 of 3)
Alarm condition
Minor
Refer to Alarm Clearing Procedures for complete troubleshooting methods for
OPM alarms
297-8361-550 Standard 04.01 September 2000
Possible cause
Defective RG frequency generator
circuit
Activity mismatch
Data error
Diagnostic failure
Load file mismatch
Self-test failure
Action
Identify and post the ISTb LCM.
Identify fault indicators with
QUERYPM FLT command.
If the LCM is CBsy, identify C-side
links to the host PM.
Post the host PM for defective P-side
links.
Busy, test, and RTS the defective
P-side links.
Post, busy, test, and RTS the
defective LCM.
If the LCM is SysB, busy and test the
defective LCM unit.
If the test fails, with card list, replace
any cards. Test and RTS the
defective LCM unit.
If the test fails, with no card list, test
the defective LCM unit again and RTS
the LCM unit.
If the LCM is ManB, test the defective
LCM unit.
If the test fails, with a card list, replace
any defective cards. Test and RTS
the defective LCM unit.
If the test fails, with no card list, test
the defective LCM unit again and RTS
the LCM unit.