Garmin GPSMAP 8700 Installation Instructions Manual page 10

Item
Item
If the NMEA 0183 device has only one input (receive, Rx) wire (no A, B, +, or -), you must leave the pink wire
unconnected.
If the NMEA 0183 device has only one output (transmit, Tx) wire (no A, B, +, or -), you must connect the white/
orange wire to ground.
10
Description
Power source
Power cable
NMEA 0183 device
NMEA 0183 cable
Garmin Wire Function
Power
Power ground
Data ground
Rx/A (In +)
Rx/B (In -)
Tx/A (Out +)
Tx/B (Out -)
Garmin Wire Color
Red
Black
Black
White/orange
White
Gray
Pink
NMEA 0183 Device Wire
Function
Power
Power ground
Data ground
Tx/A (Out +)
Tx/B (Out -)
Rx/A (In +)
Rx/B (In -)