Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 411

Trouble-clearing procedures
LOS
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OMD Input LOS
The OMD port on one of the SFC cards has detected a Loss Of Signal. The LOS alarm is
raised if the power measured at the port input drops below a threshold.
This may be caused by the following reasons:
• A misconnected, damaged or dirty fiber
• The received power may not be within the acceptable range
Severity
Service affecting?
Applicability
Corrective Action
This procedure details the corrective action for a LOS against the OMD 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 Query the receive power on the port where the LOS condition is present.
CLI
WEBUI
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Verify that the fiber is the correct type (multi-mode/single mode) and that the other end of
2
the fiber is connected properly.
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3 Ensure that the administrative state of the port is Admin Up. If it is Up, then toggle the
administrative state from UP > DOWN > UP.
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Remove the fiber from the receive port where the LOS is raised and measure the optical
4
power.
If...
the optical power is below the threshold level
provisioned by the 1354 RM-PhM for the type
of port
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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
Critical
Yes
SFC , SFD
n n
show interface <shelf slot port>
From the Equipment Tree, select the card, and select the desired port.
Then...
using the standard optical fiber jumper
cleaning procedure, clean the fiber, and
measure the power again.
OMD Input LOS
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