Connecting power and data cable
A power and data cable is supplied with the product to provide connections for power, two NMEA 0183 data ports and the optional silent mode switch. The cable has a moulded connector at one end which should be connected to the 12 pin connector on the unit. The other end of the cable has 12 colour coded bare wires ready for connection.
Figure 9 : Power and data cable connections
The table below lists the function of each colour coded wire for reference.
| Wire colour | Description | Function |
|---|---|---|
| Red | Power in + | Power supply connections |
| Black | Power in - | |
| Light green | Switch connection | External switch connections for silent mode |
| Orange | Switch connection | |
| Brown | NMEA 0183 port 1 TX+ | High speed NMEA 0183 output (38,400baud) intended for connection to chart plotters |
| Blue | NMEA 0183 port 1 TX- | |
| White | NMEA 0183 port 1 RX+ | |
| Green | NMEA 0183 port 1 RX- | |
| Purple | NMEA 0183 port 2 TX+ | Low speed NMEA port (4,800baud) intended for connection to other NMEA 0183 compatible sensors for multiplexing of data to the chart plotter |
| Pink | NMEA 0183 port 2 TX- | |
| Grey | NMEA 0183 port 2 RX+ | |
| Yellow | NMEA 0183 port 2 RX- |
| WARNING | |
| Check your wiring very carefully before applying power to the product. Failure to wire the product correctly could result in permanent damage. |
The AIS transceiver is designed to operate at voltages from 9.6-31.2V, however for optimum performance we would recommend maintaining the voltage range at 12-24V.
It is recommended that crimped and soldered lugs are used to connect the AIS transceiver to the power source using a suitable circuit breaker and/or 3A fuse block. The red and black wires as shown in Figure 10 need to be connected as follows: