Nokia Solutions and Networks T6CB1 Benutzerhandbuch

Release 15 Alarm List 

– continued

JAN 2002

B-14

Table B-1: List of Alarms (Software Release 15)

18079/
18080

SPAN Degraded –
BER Daily Threshold
Exceeded
(source)/(sink)

This error indicates that the Bit Error Rate (BER) has risen above the
alarm threshold (default threshold = 10E–6).  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.

18082/
18083

SPAN Degraded –
BER Hourly Threshold
Exceeded
(source)/(sink)

This error indicates that the Bit Error Rate (BER) has risen above the
alarm threshold (default threshold = 10E–4).  This alarm condition may
have an 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.

18085/
18086

SPAN Degraded –
BER Critical
Threshold Exceeded
(source)/(sink)

This error indicates that the Bit Error Rate (BER) has risen above the
alarm threshold (default threshold = 10E–3).  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.

18090

Span Type Mismatch

This error indicates that the span type configuration downloaded from the
OMC–R is not the same as the type programmed into the BTSs in the
modem cage where the span terminates.  The span is operational while the
alarm is present but may prevent a span from returning to service if a BTS
fails or goes out of service for any reason.

18091/
18092

SPAN Out–of–Service
– Continuous Sync
Loss (source)/(sink)

This alarm indicates that the span is out–of–service due to continuous
sync loss faults being detected.  This alarm indicates that the receive span
signal was lost, the receive framing words were corrupted, or an
in–compatible 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.