1152700• Issue 1 • February 2001 • Section 2 Operations and Maintenance
Page 20 of 23
Table 4-1. Alarm Identifications, continued
ALARM MESSAGE
SEVERITY
IMPACT
DESCRIPTION
SUGGESTED COURSE OF ACTION
Unavailable
Seconds
Path
Threshold
Crossing
Alert
UAS-PTca
Informational Alert
Service Degradation
Unavailable seconds threshold crossing alert for path layer. Path layer was unavailable for more seconds than the threshold was set for. UAS overrides all other error counts.
Check input source and transmitter at far end node.
Unavailable
Seconds
Threshold
Crossing
Alert
UASTca
Informational Alert
Service Degradation
T3 unavailable seconds threshold crossing alert. T3 signal was unavailable for more seconds than the threshold was set for. UAS overrides all other error counts.
Check input source.
1.After determining the alarm type, locate the associated interface in
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