Garmin 276c Manuale Proprietario

This section of the Appendix provides information on connecting the 

GPSMAP 276C to auxiliary devices and removing the antenna.

The power/data cable connects the GPSMAP 276C to an 11–35 

VDC system and provides interface capabilities for connecting 

external devices. The color code in the diagram below and to the 

right indicates the appropriate harness connections. Replacement 

fuse is a 3AG - 1.5 Amp fuse.

Data Out 1 

Blue

Ground 

Black

Voice (-) 

Orange

Data In 

2 Green

Alarm 

White

Power 

Red

Voice (+) 

Brown

Data In 

1 Yellow

Data Out 2 

Violet

Data Out 1 

Blue

Ground 

Black

Voice (-) 

Orange

Data In 

2 Green

Alarm 

White

Power 

Red

Voice (+) 

Brown

Data In 

1 Yellow

Data Out 2 

Violet

11−35 VDC

Autopilot/

NMEA

Device

GSD 20 

Sounder

(−)

(+)

(RXD)

(TXD)

(White/Blue)

(White/Blue) (Orange)

(−)

(+)

switch

Closed = ON

Open = OFF

Data Out 1

(Blue)

Data In 1

(Yellow)

Data Out 2

(Violet)

Data In 2

(Green)

A

PPENDIX

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I

NSTALLATION

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NFORMATION