NMEA 0183 and Power Cable Pinout


Cable pinout with callouts

Pin Number

Wire Function

Wire Color

3

NMEA® 0183 Tx/A (Out +)

Blue

4

NMEA 0183 Rx/A (In +)

Brown

1

NMEA 0183 Tx/B (Out -)

Gray

7

NMEA 0183 Rx/B (In -)

Violet

5

Alarm

Yellow

8

Accessory on

Orange

2

Ground (shield)

Black

6

VIN

Red

GUID-BF1B0D74-52BF-4F5B-938B-9A7556F36E8C v6
December 2025