Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 408

Trouble-clearing procedures
LOS
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Ensure that the source is compatible with the port and that it is on. Check that the source
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is a compatible type (for example, if you are expecting a single-mode fiber signal (either
1310 or 155x nm), check that the source is not a multi-mode fiber signal (typically 850
nm).
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Query the source of the signal for a reading of its output power (please refer to source
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equipment manufacturer's procedures). If this is not possible, carefully remove the fiber
from the transmit port of the source card and verify the output power using an optical
power meter.
If...
the output power is within acceptable limits,
the output power is not within acceptable
limits,
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Ensure that the administrative state of the port is Admin Up. If it is Up, then toggle the
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administrative state from UP >DOWN > UP.
CLI
WEBUI
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Remove the fiber from the receive port where the LOS is raised and measure the optical
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power.
If...
the optical power is below the required
threshold,
the optical power is within the required limits,
If the LOS condition is still present, the problem may be with the card.
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Perform a warm reset of the card exhibiting the Loss of Signal.
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CLI
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2-158
show interface <shelf slot port>
From the Equipment Tree, select the card, and select the desired port.
card type shelf slot
config card
Then...
continue with Step 5.
the problem is with the source. Follow the
instructions on debugging from the source
equipment manufacturer.
Then...
using the standard optical fiber jumper
cleaning procedure, clean the fiber, and
measure the power again.
clean the receive connector on the card.
reset warm
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
LOS (Loss of signal)
Issue 1 June 2011