9.1 FAULT FINDING
9ņ2
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Table 9-3 List of RADAR Alarm, Target Tracking Alarms and AIS Function Alarms
Message Class Description ALR No.
AIS
(ACT 95% Capacity)
INFO Over 95% of the maximum number of AIS targets to be activated.
AIS(ACT MAX) INFO Maximum number of AIS targets to be activated. 334
AIS(CPA/TCPA) Alarm There is a AIS dangerous target. 931
AIS(Data) Alarm
AIS communication error.
The data of communication with the AIS unit contains an error.
918
AIS(Lost) Alarm
AIS Target has been lost.
(Failure in receiving AIS target data for a specified time.)
335
AIS(New Target㸧
Alarm
AIS Automatic new target acquisition in the automatic acquisition
area.
302
AIS(Time Out) Alarm
No communication with AIS.
The AIS transponder is not connected correctly or the power is
turned off.
116
AIS 95% Capacity INFO Over 95% of the maximum number of AIS targets.
AIS Alarm *** Alarm
Alarm information issued with the ALR sentence by the AIS.
*** is a 3-digit number which is Local Alarm No in the ALR
sentence.
AIS MAX Target INFO Maximum number of AIS targets. 333
AIS PROC(Data) Alarm
AIS I/F communication error.
The data of communication with the AIS unit.
919
AIS PROC(Time Out) Alarm
No communication with AIS I/F.
The AIS unit is nor connected or is not operating.
328
REF TT(Lost) Alarm
Decrease in the reference target accuracy.
(Reference TT target has been lost.)
337
Radar Alarm(In) Alarm Targets have entered the radar alarm range. 933
Radar Alarm(Out) Alarm Targets have left the radar alarm range. 934
TT(CPA/TCPA) Alarm There is a TT dangerous target. 301
TT(Data㸨) Alarm
Communication error with the TT processing unit.
The target tracking unit is malfunctioning.
323
914
915
916
TT(Lost) Alarm
TT Target has been lost.
(Failure in tracking the target that has been under tracking.)
336
TT
(MAX 95% Capacity)
INFO Over 95% of the maximum number of targets to be tracked.
TT(MAX Target) INFO The maximum number of targets is under acquisition. 338
TT(New Target㸧 Alarm
TT Automatic new target acquisition in the automatic acquisition
area.
932
ALR No: Unique alarm number in ALR sentence and ACK sentence.
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