A-9 Appendix A Alert List
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APP A
APP A
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A.3 Cautions
Message Subject Explanation Category
AIS(invalid) INS AIS data validity error B
AIS(unavailable) INS AIS data not received B
AMS #n(Alert
Communication failed,
Main LAN)
INS AMS#n communication failure in LAN1 (main
network)
B
AMS #n(Alert
Communication failed,
SubLAN)
INS AMS#n communication failure in LAN2 (sub
network)
B
COG/SOG(invalid) INS COG/SOG data validity error B
COG/SOG(unavailable) INS COG/SOG data not received yet B
DATUM(invalid) INS DATUM sentence validity error B
DATUM(unavailable) INS DATUM sentence not received yet B
Depth(invalid) INS Water depth data validity error B
Depth(unavailable) INS Water depth data not received yet B
External TT#n(invalid) INS TT#n data validity error B
External
TT#n(unavailable)
INS TT#n data not received B
HDOP
exceeded(GPS#n)
INS Increase of HDOP of GPS#n (deterioration of GPS
precision)
B
Heading(invalid) INS Heading data validity error B
Heading(unavailable) INS HDG data not received yet B
Position Shift Others At offset of own ship’s position B
Position(invalid) INS Position validity error B
Position(not plausible) INS Position plausibility error B
Position(unavailable) INS Position not received yet B
Position(Low Integrity,
GPS#n)
TCS GPS#n measurement position integrity
deterioration
B
ROT(invalid) INS ROT data validity error B
ROT(unavailable) INS ROT data not received yet B
Scanner Rotating RADAR/
AIS
Scanner is rotating (wave not transmitted) ICE
CLASS standby
B
STW Speed(invalid) INS STW data validity error B
STW
Speed(unavailable)
INS STW data not received yet B
TEMP(invalid) INS Water temperature data validity error B
TEMP(unavailable) INS Water temperature data not received yet B
TIME(invalid) INS Time validity error B
TIME(unavailable) INS Time not received yet B