User's Manual

Release 15 Alarm List – continued
JAN 2002
B-11
SC300 1X BTS Hardware Installation, ATP, and FRU Procedures
DRAFT
Table B-1: List of Alarms (Software Release 15)
Alarm
#
Alarm DescriptionAlarm Name
18043/
18044
SPAN Out–of–Service
– Continuous
Unframed AIS Faults
(source)/(sink)
This alarm indicates that the span is out–of–service due to continuous
Unframed Alarm Indication Signal (AIS) faults being received for more
than 2.5 seconds. This alarm indicates that the receive span signal was
lost, the receive framing words were corrupted, or an incompatible remote
span interface was detected by the network. This alarm will be sent by
one of the two devices at the end of the span.
In some cases, a second alarm will be sent by the device at the other end
of the span. One alarm will have “(source)” to indicate that it came
from the source end point, and the other will have “(sink)” to indicate
that it came from the sink end point.
18046/
18047
SPAN Degraded –
REC Fault Daily
Threshold Exceeded
(source)/(sink)
This alarm indicates that the number of Receive Error Condition (REC)
alarms exceeded the alarm threshold (default threshold = 16) within a
24–hour period. This alarm condition will have an insignificant impact
on system performance and call quality. This alarm may provide an early
warning of a more serious condition. This alarm will be sent by one of
the two devices at the end of the span.
In some cases, a second alarm will be sent by the device at the other end
of the span. One alarm will have “(source)” to indicate that it came
from the source end point, and the other will have “(sink)” to indicate
that it came from the sink end point.
18049/
18050
SPAN Degraded –
REC Fault Hourly
Threshold Exceeded
(source)/(sink)
This alarm indicates that the number of Receive Error Condition (REC)
alarms exceeded the alarm threshold (default threshold = 20) within a
1–hour period. This alarm condition may have a minor impact on system
performance and call quality. This alarm may provide an early warning of
a more serious condition. This alarm will be sent by one of the two
devices at the end of the span.
In some cases, a second alarm will be sent by the device at the other end
of the span. One alarm will have “(source)” to indicate that it came
from the source end point, and the other will have “(sink)” to indicate
that it came from the sink end point.
18052/
18053
SPAN Degraded –
REC Fault Critical
Threshold Exceeded
(source)/(sink)
This alarm indicates that the number of Receive Error Condition (REC)
alarms exceeded the alarm threshold (default threshold = 511) within a
24–hour period. This alarm indicates that system performance and call
quality is seriously degraded. This alarm will be sent by one of the two
devices at the end of the span.
In some cases, a second alarm will be sent by the device at the other end
of the span. One alarm will have “(source)” to indicate that it came
from the source end point, and the other will have “(sink)” to indicate
that it came from the sink end point.
B