Si-tex SAS-300, Operation Manual

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Installation
Step 6 - Connecting to NMEA0183 compatible equipment
The two independent NMEA0183 data ports provide connection to your chart plotter and other
NMEA0183 compatible equipment. Each port consists of two wires colour coded as shown in the table
in Figure 11 and in the diagram in Figure 11. Connect the wires to the appropriate connections on your
NMEA0183 compatible equipment. Please refer to your equipment manual for more information.
The AIS transceiver has a high speed output port which operates at 38,400baud and a low speed
input port which operates at 4,800baud.
The high speed port is intended primarily to connect to a chart plotter, while the low speed port is
intended to connect to other NMEA0183 devices. A multiplexing feature is provided, which means any
messages which are received via the low speed port are automatically transmitted via the high speed
port. This is particularly useful when using a chart plotter 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 chart plotter
resulting in the chart plotter receiving both AIS information and heading information simultaneously.
Please ensure your equipment is configured to use the correct baud rate for the port it is connected to.
Figure 11 Connecting to the NMEA0183 data port