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Trouble-clearing procedures
USALS
....................................................................................................................................................................................................................................
...................................................................................................................................................................................................
Repeat
10
E
N D
O F
...................................................................................................................................................................................................
USLOS
USLOS (Upstream Channel Absent)
Wavelength Tracker could not detect the provisioned channel going through the amplifier
and is raising a non-alarmed condition to indicate that that an upstream failure exists.
Possible reasons for this condition 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.
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.
....................................................................................................................................................................................................................................
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011
Step 6
to
Step 9
for the associated card at the far-end of the service.
S T E P S
Minor
No
A2325A, AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B,
AM2325B, OSCT
NOTICE
Service-disruption hazard
"Reseating a Card" (p.
USALS (Auto Laser Shutoff Due to Upstream Fault)
3-19).
2-343
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