Alcatel-Lucent 1830 PSS-16 Maintenance And Trouble-Clearing User Manual page 520

Trouble-clearing procedures
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PWRSUSP
PWRSUSP- OT or SVAC - (Power management suspended);
PWRSUSP- CWR8 (Power management suspended)
Power management operations are suspended for the alarmed channel. The main purpose
of this condition is to help debug other problems. For example, if an alarm is present
indicating the power leaving a NE is too low, retrieve all conditions for the NE and check
if the PWRSUSP condition is present.
This condition applies to OT or SVAC add channels or CWR8 thru channels.
For the OT or SVAC:
• The measured loss from the input port to the egress LD is different from the
theoretical loss by 4dB or more. The alarm is raised when the power control loop for
the card attempts to change its power (to get the egress LD channel power to the
correct value) and reaches the 4dB clamp.
For the CWR8:
There are two possible causes for the PWRSUSP alarm on a CWR8 channel. In either
case, the CWR8 power control loop stops controlling the attenuation for that channel
(freezes the attenuation).
1. NE power management has told the CWR8 power control loop to clamp the
attenuation for the channel, and the CWR8 power control wants a channel attenuation
that exceeds the clamp. NE power management will do this if:
• it is unable to communicate with the upstream node to find out if channels are
• there is an upstream problem resulting in the channel leaving an NE lower than
2. The wavelength tracker measurements for that channel have become unreliable.
Severity
Service affecting?
Applicability
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2-270
leaving it at good power, and;
expected, or the upstream NE has a wavelength tracker reliability problem at its
egress LD.
PWRSUSP- OT or SVAC - (Power management suspended);
PWRSUSP- CWR8 (Power management suspended)
Not reported
No
112SA1L, 112SCX10, 112SX10L, 11STAR, 11STMM10,
11STGE12, 43SCX4, 43STA1P, 43STX4, 43STX4P, 4DPA4,
MVAC, SVAC
1830 PSS-36/PSS–32/PSS-16/PSS-4
8DG60888CAAA Release 3.6.0 and 3.6.1
Issue 1 June 2011