B&G NAIS-400 - Manual (Page 21)

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Installation | NAIS-400 User Manual
Step 5 - Connecting an external switch for Silent Mode operation
A toggle switch can be connected to the AIS transceiver to provide
remote control of silent mode. Connect the toggle switch between
the light green and orange wires as shown in Figure 10. Connection
of an external switch to toggle silent mode is optional and not es-
sential for normal operation of the product.
Warning: Do not connect a voltage source across the switch
inputs, as this may damage the transceiver.
Fig. 10 External switch
Transmit +
Transmit –
Power in +
Power in –
Switch input +
Switch input –
Receive +
Receive –
Brown
Blue
Light green
Orange
Red
Black
White
Green
Purple
Pink
Grey
Yellow
Transmit +
Transmit –
Receive +
Receive –
NMEA0183
Port 1
38,400baud
(chart plotter)
NMEA0183
Port 2
4,800baud
(other NMEA0183 device)
Figure 10 Connecting an external switch
Step 6 - Connecting to NMEA 0183 compatible equipment
The two independent NMEA 0183 data ports provide connection
to your chartplotter and other NMEA 0183 compatible equipment.
Each port consists of four 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 NMEA 0183 compatible equip-
ment. Please refer to your equipment manual for more information.
The AIS transceiver has a high speed bi-directional port, which
operates at 38,400 baud and a low speed bi-directional 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 NMEA 0183 devices. A multiplexing feature is
provided, which means any messages received via the low speed
port are automatically transmitted via the high speed port and vice-
versa. This is particularly useful when using a chartplotter having