...................................................................................................................................................................................................
4
Check the alarms/conditions on the node located in Step 3 or the node immediately
upstream from point identified in Step 3.
...................................................................................................................................................................................................
5
Correct the problem identified in Step 4.
...................................................................................................................................................................................................
6
If all power levels along the OCh trails fall within the target range, locate the fiber
connected directly to receiver of the port which detects SSF condition.
...................................................................................................................................................................................................
7
Clean the fiber.
...................................................................................................................................................................................................
8
If cleaning the fiber does not clear the problem, replace the fiber.
...................................................................................................................................................................................................
9
If the problem is detected on the client port of 11STAR1 OT, and the power level is
within the operating range, check for pluggable module alarms.
...................................................................................................................................................................................................
10
Replace the pluggable module.
SSFODU
SSFODU (Server Signal Failure - ODU)
The OT port has detected a Server Signal Failure at the ODUk level. Conditions that can
cause an SSFODU are:
• LOS-P (Loss of Signal – OTU)
• LOF (Loss of Frame – OTU)
• LOM (Loss of Multiframe – OTU)
• ODU-AIS
Trouble-clearing procedures
SSF
SSF (Server Signal Failure - OTU)
....................................................................................................................................................................................................................................
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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
2-295
E ND OF STEPS
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