Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 343

Trouble-clearing procedures
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FECECSD
FECECSD (Pre-FEC Signal Degrade)
The OT port has detected a Signal Degrade Path layer. This defect indicates that local
OTUk port has detected FEC BER which exceeds 10-5.
This may be caused by the following reasons:
• Damaged or dirty fiber connected to the local receiver
• Damaged or dirty receiver inside pluggable module
• The received power may not be within the acceptable range on local port input •
• Power level out of range on the associated OCh trail
Severity
Service affecting?
Applicability
This procedure details the corrective action for an FECECSD against the OT port.
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Perform the procedure,
1
not affect service unless another alarm exists on the port.
E
N D O F
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FECUBCSD
FECUBCSD (Post-FEC Signal Degrade)
The OT port has detected uncorrectable bit errors after FEC. This defect indicates that
local OTUk port has detected FEC BER which exceeds 10
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1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
Minor
No
11STAR1, 11QPA4
"DEGOTU" (p.
S T E P S
FECECSD (Pre-FEC Signal Degrade)
2-68). Because it is FEC corrected BER, it does
-6
.
2-93