365-575-102 DetailedLevelProcedure:
Issue 8.0, July 2002 Page 1 of 2
DLP-548
Release Looped Back OC-12 Line(s)
!
CAUTION:
Traffic and service interruption can occur to other OC12 lines if they are
accidentally looped back. Recheck the address of the slot(s) being released
from loopback.
NOTE:
Loopback occurred at the OC12 slot in either the multiplex direction
(towards the OC-48 line) or the demultiplex direction (towards the lightguide
cross-connect panel). Simultaneous loopbacks in both directions were not
possible.
1. Obtain the operation instructions to release the looped back OC12 slot(s) and
note the assigned address.
2. If required, connect and condition the craft interface terminal (CIT).
Reference: DLP-501
3. At the CIT, select FAULT-Release-Loopback-OC12 for the first specified slot
and the direction (either From OC48 or From OC12).
4. Repeat Step 3 for any remaining slot(s).
5. The slot(s) is released from the looped back condition. If you wish to verify,
select FAULT-Retrieve-Alarm for an updated Active Alarms and Status
Report. An example of this report with a description of the output parameters
is provided in Section 11 of this manual.
6. STOP! YOU HAVE COMPLETED THIS PROCEDURE.
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