LOGAIN
LOGAIN (Amplifier out of operational range - amplifier gain
too low)
The ingress power to the amplifier added to the programmed gain (both in dB's) is lower
than the minimum allowable power supported by the amplifier.
Severity Minor
Service affecting? No
Applicability A2325A, AHPHG, AHPLG, ALPHG, ALPFGT, AM2017B,
AM2125A, AM2125B, AM2325B
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) and locate the likely point that is the
cause of the LOGAIN alarm. This may be on the upstream NE or the local one. Retrieve
alarms and conditions and, using the appropriate corrective actions, resolve these issues
first.
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2
Attempt an egress or ingress amplifier adjust, depending on the type of amplifier that is
raising this alarm. If any adjust fails, there may be other optical power related alarms that
are raised as a result. Resolve these issues by following the appropriate procedure.
Trouble-clearing procedures LOGAIN (Amplifier out of operational range - amplifier gain
too low)
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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
2-145
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