Alcatel-Lucent 1830 PSS-16 - DISCOVERMOD (Pluggable Module Discovered)

This may be caused by the following reasons:
• Damaged or dirty fiber connected to the local receiver
• The received power may not be within the acceptable range on local port input
• The input optical signal is severely degraded by the optical noise
Severity Major
Service affecting? Yes
Applicability 112SA1L, 112SCA1, 112SCX10, 112SX10L, 43SCX4
Corrective Action
This procedure details the corrective action for a DEG against the 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
Clean the input fiber at the receiver, and check if the input power is within the specified
range.
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2
If it does not clear the alarm, check if there is any power management or optical channel
alarm reported on the link. Perform the corrective action for clearing these alarms on the
link.
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3
Measure the optical signal noise ratio (OSNR) with at the received amplifier with an
optical spectrum analyzer. Check if the OSNR is within the range specified by the EPT.
Perform the actions to improve the system OSNR.
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4
For 40G and 100G coherent cards only: Retrieve the monitoring values for chromatic
dispersion (CD), Differential Group Delay (DGD), and Frequency offset. Check if the
values are in the normal range. If not, perform the actions to optimize the optical link.
DISCOVERMOD
DISCOVERMOD (Pluggable Module Discovered)
Trouble-clearing procedures
DEGOTU
DEGOTU (Signal Degrade - 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
2-69
E ND OF STEPS
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