Item
Garmin Wire Function
Garmin Wire Color
NMEA 0183 Device Wire Function
Power
Red
Power
Power ground
Black
Power ground
Data ground
Black
Data ground
TxA (+)
Gray
RxA
TxB (-)
Pink
N/A
NMEA 0183-Compliant Device With a Single Transmitting Wire Connected to Send Data
Item
Description
12 Vdc power source
Power cable
NMEA 0183-compliant device
NMEA 0183 cable
Item
Garmin Wire Function
Garmin Wire Color
NMEA 0183 Device Wire Function
Power
Red
Power
Power ground
Black
Power ground
Data ground
Black
Data ground
RxB (-)
Orange/white
N/A
RxA (+)
White
TxA (+)
Lamp or Horn Connections
The device can be used with a lamp, a horn, or both, to sound or
flash an alert when the chartplotter displays a message. This is
optional, and the alarm wire is not necessary for the device to
function normally. When connecting the device to a lamp or
horn, observe these considerations.
• The alarm circuit switches to a low-voltage state when the
alarm sounds.
• The maximum current is 100 mA, and a relay is needed to
limit the current from the chartplotter to 100 mA.
• To toggle visual and audible alerts manually, you can install
single-pole, single-throw switches.
GPSMAP 8000 Series Installation Instructions
11
