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Message
LAT(Out Of Bounds)
Joystick(Communication
Failed, MainLAN)
Joystick(Communication
Failed, SubLAN)
LCD Fan#n(LCD)
LCD High TEMP
Lost(AIS)
MJS IF <->
AP(Communication error)
MJS IF(Unit failure)
MJS OPE <-> MJS
IF(Communication error)
MJS OPE(Unit failure)
New Target(AIS)
OPA-OPB(Communication
error)
OPU-Serial(Communication
error)
OPU-USB(Communication
error)
Position monitor
Position(GPS#n) Not
Differential
Position(invalid)
Position(Navigational
Status Not Valid, GPS#n)
Position(not plausible)
Position(Outside Of
Expected)
Position(unavailable)
Position1(NON-WGS84)
Position2(NON-WGS84)
Appendix A Alert List
Subject
ECDIS
Exceeded the system's operating latitude
range (out of bounds)
A communication error with MJS via Main
MJS-90
LAN was detected.
00
A communication error with MJS via Sub LAN
MJS-90
was detected.
00
Display
The LCD fan#n stopped
Unit
Display
LCD temperature rise
Unit
RADAR/
Signals of AIS target have become unable to
AIS
receive. The current position is predicted
based on the data received last.
MJS-90
Communication error between MJS IF and
00
AP
MJS-90
MJS IF Unit failure
00
MJS-90
Communication error between MJS OP and
00
MJS IF
MJS-90
MJS OPE UNIT failure
00
RADAR/
AIS is in the initial acquisition state
AIS
Operati
OPA-OPB open detection
on
section
Control
Communication error between the
section
Companion MPU and the operation unit
(serial)
Control
Communication error between the
section
Companion MPU and the operation unit (USB
connection)
TCS
Monitoring of the position
INS
GPS#n is not DGPS
INS
There is a format error or a status error of the
Position data.
TCS
Navigational status of GPS is not valid.
INS
There is a range error of Position data.
INS
Position data is out of the expected range
INS
The backup position data cannot be received
or cannot be calculated.
ECDIS
Primary datum failure
ECDIS
Secondary datum failure
A-6
Explanation
Category
A
B
B
B
B
A
B
B
B
B
A
B
B
B
A
B
B
B
B
B
B
B
B
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