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Installation |
NAIS-400 Instruction Manual
Tr
Transmit –
Power in +
Power in –
Switch input +
Switch input –
R
Receive –
USB
Brown
Blue
Light green
Orange
Red
Black
Grey
Yellow
NMEA0183
38,400 Baud
NMEA0183
4,800 Baud
Figure 10 Connecting an external switch
Step 6 - Connecting to NMEA0183 compatible equipment
The two independent NMEA0183 data ports provide connection
to your chartplotter and other NMEA0183 compatible equipment.
Each port consists of two colour-coded wires, as shown in the table
(Step 4) and in the diagram in Figure 11. Connect the wires to the
appropriate connections on your NMEA0183 compatible equip-
ment. Please refer to your equipment manual for more information.
The AIS transceiver has a high speed output port, which operates
at 38,400 baud and a low speed input port, which operates at 4,800
baud. The high speed port is intended primarily to connect to a
chartplotter, while the low speed port is intended to connect to
other NMEA0183 devices. A multiplexing feature is provided, which
means any messages received via the low speed port are automati-
cally transmitted via the high speed port. This is particularly useful
when using a chartplotter having only a single NMEA0183 port. An
additional sensor, such as a gyro-compass, can be connected to the
AIS transceiver via the low speed port and the AIS transceiver can be
connected via the high speed port to the chartplotter resulting in
the chartplotter receiving both AIS information and heading infor-
mation simultaneously. Please ensure your equipment is configured
to use the correct baud rate for the port it is connected to.
