System Manual

BreezeCOMPACT System Manual
138
Chapter 4: Events and Alarms
Alarm Name
Severity
Alarm Description
Problem Cause/Guideline
Clock Holdover
Enter
ed
Major
The unit entered Clock
Holdover mode because it is
not receiving the 1PPS
signal.
PS may have difficulties of
receiving satellites.
Try to improve the GPS
installation and make sure
that it is properly installed
with a clear sky and no
obstacles.
Note: The system is fully
functional for several hours
when entering Holdover
mode. After GPS reception
is improved, the system
clears the alarm.
Synthesizer Error
Critical
Synthesizer internal
hardware problem was
detected.
The unit stopped
transmitting.
Contact Telrad support for
further assistance.
Tx Power Shut
Down
Critical
Tx power shut down.
A Tx power shutdown may
result due to multiple
reasons, such as a Radio
Head failure or a
user-initiated shutdown.
In case Spectrum Analyzer
is enabled, Tx
shutdown will
be performed automatically.
Contact Telrad support for
further assistance.
Authenticator
Communication
Timer Expired
Major
Authenticator
communication timer
expired.
Excess Number of
MSs (UEs)
Minor
The number of UEs in an
active operation
state served
by the cell exceeded the
threshold.
High UL Median
Noise
Minor
The UL median noise level
represents the median value
of the noise floor histogram.
If the measured UL median
noise level exceeds the value
calculated as the target
noise, a noise alarm is
generated.
Interference may result in
high UL noise. Proper
analysis of the deployment
is needed, in case this alarm
is triggered inconsistently.
DCS Channel Busy
Major
Measured noise level is
exceeded the threshold
(DCS), the channel declared
as ‘busy’
For BreezeCOMPACT
deployed in the US/Canada
in 3.65GHz unlicensed
band, DCS is required. This
alarm indicate channel busy
which requires the operator
to move to different
frequency.
Clear alarm condition: when
the NI is 3 dB below the
“Channel Busy NI Level”
Threshold value, the
channel declared as cleared