Alcatel-Lucent 1830 PSS-16 - Page 422

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9
Replace the card. Refer to “Replacing System Components” (p. 3-20). Follow the return
and repair process in the Customer and Product Support guide to return the faulty card to
an authorized repair center for replacement.
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 Critical
Service affecting? Yes
Applicability 112SCA1, 112SCX10, 112SX10L, 11DPE12, 11DPE12E,
11QPA4, 11STAR1, 11STMM10, 11STGE12, 43SCX4, 43STA1P,
43STX4, 43STX4P, 4DPA4, AM2017B, AM2125A, AM2125B,
AM2325B
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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1
Retrieve power level reading on the local OT port.
Trouble-clearing procedures
LOS-OUT
LOS-OUT (Outgoing Loss of Signal) and (Outgoing Channel
Absent)
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2-172
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
E ND OF STEPS
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