Alcatel-Lucent 1830 PSS-16 - Page 595

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8
Replace the card. Refer to “Replacing System Components” (p. 3-20). Follow the return
and repair process in the Customer and Product Support guide to return the faulty card to
an authorized repair center for replacement.
USOCHCOLLISION
USOCHCOLLISION (Upstream Channel Collision Input Direction)
Wavelength Tracker has detected more than one instance of the same channel at this port.
This is likely due to a fibering problem or equipment failure upstream from the alarmed
port.
Severity Not alarmed
Service affecting? No
Applicability A2325A, AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B,
AM2325B, OSCT
Corrective Action
NOTICE
Service-disruption hazard
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 “Reseating a Card” (p. 3-19).
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.
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
Perform the procedure “Path Power Trace” (p. 3-8) to identify the network path the
particular alarmed channel is traversing.
Trouble-clearing procedures
USLOS
USLOS (Upstream Channel Absent)
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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
2-345
E ND OF STEPS
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