TAP-174: Trouble Clearing 365-575-102
Page6of8 Issue8.0,July2002
24. At the CIT, select CONFIGURATION-Retrieve-Crossconnection-All
command and execute to obtain the Cross-Connection Map Report for the trib-
utary identified in Step 3.
25. Identify and record the low-speed interface circuit pack used (if any) to drop
the STS signal indicated by the Source Address in Step 3.
!
CAUTION:
Removing low-speed interface circuit pack (DS3 or STS1E) may result in loss of
traffic if protection circuit pack is not available (slots P1 and P2).
!
CAUTION:
Removing an OC-3 circuit pack may result in loss of traffic if a protection circuit
pack is not available (slot #B).
!
CAUTION:
Removing an OC-12 circuit pack will result in loss of traffic if a protection ciruit
pack is not available (slot 3B or slot 7B).
NOTE:
Low-speed interface protection switching will be required in the next few steps.
26. From the list of low speed interface circuit packs (Step 25), disengage one of
the circuit packs just enough to cause a low-speed protection switch.
27. Obtain another Active Alarm and Status Report (use
FAULT-Retrieve-Alarms command or F9 key).
28. Does the incoming (from OC-48) STS LOP condition still appear in the
Active Alarm and Status Report?
If NO, then go to Step 31.
If YES, then continue.
29. Reengage the low-speed interface circuit pack, and wait for the system to
revert from protection to normal operation. Optionally, the
FAULT-Switch-Low Speed:Reset command may be used.)
30. Contact your next level of technical support for assistance.
31. Replace the low-speed interface circuit pack.
Reference: DLP-514
32. Obtain another Active Alarm and Status Report (use
FAULT-Retrieve-Alarms command or F9 key).
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