Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 400

Trouble-clearing procedures
LOS
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LOS (Channel Absent)
Wavelength Tracker could not detect the provisioned channel. Possible reasons for this
alarm may be:
• the channel is missing
• the channel is outside the detectable range
• the Wavekeys are not being correctly applied at the source OT or SVAC
If the channel is missing it could be a provisioning error or fibering error.
At the end of each step wait for several seconds to see if the fault clears. If not, go to the
next step:
Note: It may take several seconds for channel power out of range and channel absent
alarms to clear when performing the corrective actions listed below.
Severity
Service affecting?
Applicability
Corrective Action
A cold reset, reseat, or replacement of a card is service impacting if the card is currently
carrying services. To determine if any services are currently carried over a card, perform
the procedure
If there are services currently carried over the card, it may be best to wait for a
maintenance window before resetting, replacing, or reseating the card.
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1 Perform the procedure
trouble point for the lightpath. Resolve issues/alarms at the trouble point.
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2-150
Critical
Yes
A2325A, AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B,
AM2325B, OPS, OSCT, CWR8, CWR8-88, MESH4, OPS, OSCT,
WR
NOTICE
Service-disruption hazard
"Reseating a Card" (p.
"Path Power Trace" (p. 3-8)
3-19).
to identify the probable network
LOS (Channel Absent)
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011