Konsberg AIS 200, Installation Manual

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Kongsberg AIS 200 Installation Manual, rev. 2 Maintenance
7.2.5 VHF transceiver failure
If there is no activity on the
TX
and/or the
MSG
LED on the front of the unit, this indicates a
transmitter or receiver problem. Disconnect and reconnect power to see if the Mobile Unit
starts up as expected. If not, consult Customer Support for advice.
7.3 External data interface problems
External data connections may have incorrect:
•
Data input from main GPS source
•
Data input from vessel heading sensor
Check NMEA version, see table on page 33.
7.3.1 Data input from main GPS/GNSS source
Position data input to the AIS 200 system is received from the vessel’s main GPS/GNSS
receiver using an RS-422 serial line communication. If data are not received in the AIS 200
Mobile Unit, the following steps should be taken in order to check for missing position data:
1. Check that corresponding cable connections are correctly terminated, refer chapter 4.4 and
note on page 25.
2. If properly connected, check the serial line communication (baud rate, parity, number of
bytes transmitted, number of stop bits) between transmitting (vessel GPS/GNSS receiver)
and receiving (parameters to be checked from display) end.
3. If OK, check that the position output format from the GPS/GNSS receiver is in accordance
with the expected input position format, see page 33 and
Appendix B - Digital interface
IEC 61162-1 .
If the Mobile Unit still does not receive position data, consult Customer Support for advice.
For details on electrical interface, see page 59.
7.3.2 Heading from vessel heading sensor
Heading data is received from the vessel’s gyro. If input data is missing, the following steps
should be taken in order to check for missing heading data:
1. Check that corresponding cable connections are correctly terminated, refer chapter 4.4 and
note on page 25.
2. If correctly connected, check the serial line communication (baud rate, parity, number of
bytes transmitted, number of stop bits) between transmitting (vessel heading sensor) and
receiving (parameters to be checked from the MKD unit) end.
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