Nortel DMS 100 Series Maintenance Manual page 323

Table 9-1 RSC-M alarm clearing (Sheet 2 of 3)
Alarm condition
RCO2 Major
RCO2 Minor
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
Possible cause
Defective card caused one
unit to be OOS.
Defective card caused some
degradation of service.
RSC problem solving chart 9-3
Action
Proceed as follows:
1. Identify the system busy (SysB)
RSC-M unit.
2. Display peripheral-side (P-side)
links at the MAP terminal.
3. Busy and test (SysB) links.
4. If test fails, replace cards in card list,
and test again.
5. If test passes, return links to service.
If alarm clears, the problem is
complete. If Major alarm continues,
go to step 6.
6. Post, then Bsy, the defective
RSC-M unit.
7. Perform OOS test.
8. Replace cards that appear in card
list. Use correct card replacement
procedures.
9. Load again, if necessary, and RTS
RSC-M unit.
Note: The problem can be present at
the remote access node (AN).
Proceed as follows:
1. Identify the in-service trouble (ISTb)
RSC-M unit.
2. Post, then Bsy, the defective
RSC-M unit.
3. Perform OOS test.
4. Replace cards that appear in card
list. Use correct card replacement
procedures.
5. RTS RSC-M unit.