Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 422

Trouble-clearing procedures
LOS-OUT
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Replace the card. Refer to
9
and repair process in the Customer and Product Support guide to return the faulty card to
an authorized repair center for replacement.
E
N D O F
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LOS-P
LOS-P (Incoming Payload LOS)
The OT port has detected an Optical Channel Loss of Signal Failure.
These conditions may be caused by the following reasons:
• A misconnected, damaged or dirty fiber on the trail between the local OTUk receive
port and the far end transmitter
• OTS/OMS layer failure on the OCh trail
• The received power may not be within the acceptable range on the Far end input
Note: When a cross-connect is added, the LOS-P alarm is raised for ports A and B,
and then clears after a few seconds.
Severity
Service affecting?
Applicability
Corrective Action
This procedure details the corrective action for clearing the LOS-P declared on an OT
port. At the end of each step wait to see if the fault clears. If not, continue with the next
step.
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Retrieve power level reading on the local OT port.
1
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2-172
"Replacing System Components" (p.
S T E P S
Critical
Yes
112SCA1, 112SCX10, 112SX10L, 11DPE12, 11DPE12E,
11QPA4, 11STAR1, 11STMM10, 11STGE12, 43SCX4, 43STA1P,
43STX4, 43STX4P, 4DPA4, AM2017B, AM2125A, AM2125B,
AM2325B
LOS-OUT (Outgoing Loss of Signal) and (Outgoing Channel
8DG60888CAAA Release 3.6.0 and 3.6.1
Absent)
3-20). Follow the return
1830 PSS-36/PSS–32/PSS-16/PSS-4
Issue 1 June 2011