User's Manual

Table Of Contents
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
V-2 Alarm Management
V Alarms.fm / 10.11.11
V-19
NACOS Platinum
2.2.3 AIS Alarms
Depending on the type of AIS connected to the system, not all alarms and warnings listed below may
be supported.
Nevertheless all AIS alarms which are implemented in the NACOS Platinum are listed here completely.
The AIS related target alarms and warnings are documented in the chapter Radar Alarms, they are not
repeated here.
The following warnings and alarms are only available in the system, if an AIS receiver is connected.
AIS Ch.Man. Not Accepted
The settings made for the channel management have not been accepted by the system.
Remedy: Check the settings.
AIS Check TGT Capacity
95% of the maximum number of AIS targets are being tracked.
Remedy: Delete at least one unimportant AIS target.
AIS External POSN Lost
The AIS system does not receive a valid position sensor information and falls back to its internal
position sensor.
Remedy: Check the sensor and the cabling.
AIS General Failure
The AIS has stopped the transmission caused by an internal fault.
Remedy: Call service as soon as possible. The AIS system must be exchanged probably.
AIS GPS Antenna Failure
The GPS antenna of the AIS does not work correctly.
Remedy: Check the GPS antenna and the antenna cabling (short circuit or missing contact at the
connectors). No immediate action is required, AIS is normally fed by an external GPS receiver from
the integrated bridge system.
AIS GPS ANT Short Circ.
The internal check of the GPS receiver has detected a short circuit in the coax wire between the
antenna and the receiver.
Remedy: Check the GPS antenna cable.
AIS GPS Receiver Fault
The GPS receiver of the AIS has detected an internal malfunction.
Remedy: Call service at the next possible harbour. The transmitter is still operable, your vessel wil
still be visible for other ships, but you might not see other AIS tragets.