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NMEA 0183 Wiring
(Data cable)
To exchange NMEA 0183 data, this unit has one NMEA 0183 version
2.0 communication port. Com port one (Com-1) can be used to receive
NMEA format GPS data. The com port can also transmit NMEA format
GPS data to another device.
The four wires for the com port are combined with the Power Supply
cable and NMEA 2000 Power cable to form the power/data cable (shown
earlier). Com-1 uses the yellow wire to transmit, the orange wire to
receive and the shield wire for signal ground. Your unit does not use
the blue wire.
Com-1 wiring to receive NMEA position information
from some other GPS receiver.
Com-1 wiring to transmit NMEA position information
to another NMEA-compatible device.
Ground
To Other
Device
Com-1
To unit
Yellow (Transmit)
NMEA Receive
Shield (Ground)
Orange (Receive)
NMEA Transmit
Shield (Ground)
Ground
Com-1
To unit
To Other
GPS Receiver