Raymarine Ray 90, Installation And Operation Instruction Manual

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4.7 NMEA 0183 connection
The NMEA 0183 wires can be used to connect the unit to a NMEA 0183 GNSS (GPS) receiver or MFD.
1. Yellow = Receive positive (+) wire
2. Green = Receive negative (-) wire
3. White = Transmit positive (+) wire
4. Brown = Transmit negative (-) wire
The NMEA wires should be connected to a compatible device as shown in the table below:
NMEA 0183 wires NMEA 0183 device
Receive positive (+)
to
Transmit positive (+)
Receive negative (-)
to
Transmit negative (-)
Transmit positive (+)
to
Receive positive (+)
Transmit negative (-)
to
Receive negative (-)
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