Tap-202: Clear 'Dcm Los - Lucent Technologies LambdaXtreme Alarm Messages And Trouble Clearing Manual

TAPs for PortOA_RP and LINE Alarm
Groups

TAP-202: Clear 'DCM LOS'

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Overview
Procedure
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6 - 4 8
Use this procedure to clear the following alarm conditions:
•
DCM LOS: OA
•
DCM LOS: OA (preamp)
•
DCM LOS: RP to OA
Defective DCM or faulty connectivity to the associated OA will cause
Loss of Signal (LOS) on the line.
The
DCM LOS: OA
•
OA(DGEF) circuit pack in a Repeater
•
OA(VOA) circuit pack in an End Terminal
•
OA(OADM Add)circuit pack in an OADM
The
DCM LOS: OA (preamp)
•
OA(Preamp) circuit pack in an End Terminal
•
OA(Preamp) circuit pack in an OADM
The
DCM LOS: RP to OA
•
OA circuit pack in a Repeater
The DCM circuit pack has no LED. If the cause of this alarm
condition is a bad DCM fiber jumper, or a bad connector at the
IN_DCM port or OUT_DCM port of an OA circuit pack, then the
fault LED of the OA will flash. The
List will identify the OA and the IN_DCM port.
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Examine the
1 NE Alarm List
location of the OA associtated with this alarm condition.
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Remove the appropriate shelf covers over the OA and corresponding
2
DCM. All connections can be accessed from the front. For details, go
to "DLP-607: Remove/Install Front Cover"
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Visually inspect the fiber jumper between the identified DCM, OA,
3
and RP circuit packs. Correct any problems found. For details, go to
"DLP-609: Inspect Optical Fiber(s)"
Lucent Technologies - Proprietary
See notice on first page
alarm condition is raised at the
alarm condition is raised at the
alarm condition is raised at the
AID
. Using the
(7-31).
Trouble Clearing Tasks
column of the NE Alarm
column, identify the
AID
(7-17).
365-575-783R1.1
Issue 1, June 2002