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NMEA 0183 wiring
HDS-5 & HDS-7 Data Cable
To exchange NMEA 0183 data, the HDS-5 and HDS-7 units have a NMEA 0183 version 2.0
(RS-422) communication port. Serial Communications Port one can be used to transmit or
receive NMEA format data. The ve wires for the serial communications ports (Data cable)
are combined with the Power cable to form the Power/Data cable.
HDS-8 & HDS-10 Data Cable
To exchange NMEA 0183 data, the HDS-8 and HDS-10 units have either one NMEA0183
version 2.0 (RS-422) communication port, or two NMEA 0183 (RS-232) communication
ports. The ve wires for the serial communications ports (Data cable) are combined with the
Power cable to form the Power/Data cable.
NMEA 0183 Wiring Table
RS-422
HDS Device
Green RX (-) Transmit (-)
Orange RX (+) Transmit (+)
Shield (Ground) Ground
Yellow TX (+) Receive (+)
Blue TX (-) Receive (-)
RS-232 HDS-8 & 10 Only — (COM 1)
HDS Device
Yellow TX Receive
Orange RX Transmit
Shield (Ground) Ground
RS-232 HDS-8 & 10 Only — (COM 1)
HDS Device
Blue TX Receive
Green RX Transmit
Shield (Ground) Ground