ALLCHANMISS (C-Band Loss of signal)
No C-band channels are detected at the LD Line or Sig port, but the NE has at least one
service successfully launched and the LD link has been successfully received.
ALLCHANMISS is reported if no C-Band channels are detected coming into (received
by) the amplifier Line or Sig port.
Severity Critical
Service affecting? Yes
Applicability A2325A, AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B,
AM2325B, OSCT
Corrective Action
This alarm is the result of a problem at an upstream NE or upstream span.
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
Perform the procedure “Path Power Trace” (p. 3-8) to identify the probable network
trouble point for the lightpath and resolve issues/alarms at the trouble point. This may
involve performing the steps in “ALLCHANMISS-OUT” (p. 2-26) at the NE containing
the
trouble point(s).
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2
If the problem persists, attempt an egress adjust on the egress amplifier on the NE
identified in Step 1.
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3
The gain range provisioned by the EPT for this amplifier is insufficient to accommodate
the unexpected change in loss in the network. Refer the problem to network planning.
ALLCHANMISS-OUT
ALLCHANMISS-OUT (C-Band Loss of signal)
Trouble-clearing procedures
ALLCHANMISS
ALLCHANMISS (C-Band Loss of signal)
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2-26
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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