Operating Instructions and Installation Instructions

CSB200 Class B AIS
R2.0 35
Problem Possible cause Solution
Active alarm shown:
Channel A Noise
fault OR
Channel B Noise
fault
The AIS cannot
transmit because the
background noise
level is too high
Check the VHF antenna
connections.
Check the AIS
installation manual
against the specification
of your VHF antenna.
In very busy shipping
channels this alarm
may appear
temporarily. This is
normal operation for
Class B AIS.
Active alarm shown
with message not
listed here
The VHF antenna is
not connected or is
not suitable for use
with the AIS.
AIS is faulty.
Check the VHF antenna
connections.
Check the AIS
installation manual
against the specification
of your VHF antenna.
Please contact your
dealer.
CSB200 Class B AIS
R2.0 36
SERIAL DATA INTERFACE
Serial Port Input/Output
There are two serial ports, one presenting NMEA (RS422) format and the
other RS232 format. Data can be input from either or both ports.
The serial port interface(s) output:
• At power-up boot-loader and main application splash text
screens including version numbers and memory status.
• As a VHF Data Link Message (VDM) all incoming VHF Data
Link (VDL) data received by the CSB200.
• The VHF data link own vessel (VDO) messages sent by the
CSB200 over the VHF Data Link.
• AIS regional channel assignment messages (ACA) received.
These are derived from an incoming VHF Data Link message
(message 22) or a DSC message.
• AIS channel management information source (ACS) messages.
• Alarm messages (ALR, TXT).
The data interface will accept
• Personality programming messages
• Alarm acknowledgement messages (ACK)
On power up the unit will report details of the firmware versions residing
in the unit.
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