Kongsberg Seatex AIS 100, Instruction Manual

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Seatex AIS 100 Instruction Manual, rev. 5 Installation
46
Sealing of GPS and VHF antenna connectors
•
Ensure that the outdoor antenna connectors are wrapped with
waterproof self-vulcanising tape.
•
Stretch the tape to double length and start wrapping a bit down on
the cable.
•
Wrap the tape all over the connectors and, if possible, seal it with
electric coating.
•
An alternate way of waterproofing is to use heat shrinkable hose
with glue.
•
The hose should cover the whole connector and part of the cable
and finally it should be sealed with electric coating.
5.8 Internal alarm system
The Seatex AIS 100 has a built-in alarm functionality. The alarm is
generated in different ways:
•
Alarm generated by the BIIT.
•
Alarm generated by the sensor part.
•
Alarm generated by the MKD.
An alarm could cause different actions taken by the system, depending
on the nature of the alarm. An alarm generated by the BIIT could stop
transmission of messages. An alarm will open the alarm relay, which
can be used to trigger an external alarm. There will also be generated
an alarm message on the PI port which can be read on an MKD, if
connected, or on an external interfaced system.
There are two types of alarm messages, which can be output on the PI
and LAN port. An ALM message, e.g. $AIALM, is output when an
error situation arises. A TXT message, e.g. $AITXT, is output when
there is an indicator message. An error situation may arise if there is a
TX malfunction, while an indicator message may arise when
differential corrections are lost. The ALM LED in the front of the AIS
100 will be lit if an error situation arises.