List of alarms
Chapter 9. List of alarms and troubleshooting.
109
10.1
LIST OF ALARMS
All the malfunctions are divided into five groups:
1) Complete failure of the main unit including auto testing system failure;
2) Complete failure of the main unit, diagnostics provided on the Service Port;
3) Partial failure of the main unit with the diagnostics AISALR messages
provided on the presentation interface and on the Service Port;
4) Failure of individual assemblies whose auto diagnostics is not supported;
5) CFP failure (complete or partial) whereby the main unit remains operational.
If malfunctions of group 3 are detected, the Service Port outputs the same
malfunction code as in the AISALR sentence output via the presentation interface.
The tables provide a list of alarms states and malfunctions.
Table 4. Codes of AIS alarms and states
Text of
malfunction/failure
description
Threshold-
exceeded
indicator
OK
indicator
Alarm of text
message
identifier
System response
Tx malfunction
А
V
001 Stops the
transmission
Antenna VSWR
exceeds limit
А
V
002 Continues
operation
Rx channel A
malfunction
А
V
003 Stops transmission
on the damaged
channel
Rx channel B
malfunction
А
V
004 Stops transmission
on the damaged
channel
General failure
А
V
006
Stops transmission
Clock lost
A
V
007
Independent –
follow
synchronisation
rules including
semaphore.
Dependent – follow
synchronisation
rules. Stop
transmission when
there is no
synchronisation
source.
MKD connection lost
А
V
008 Continues
transmission with
DTE set to “1”
Summary of Contents for T214
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