Garmin GPSMAP 296 User Manual

This section of the Appendix provides information on connecting the 

GPSMAP 296 to auxiliary devices and removing the antenna.

The power/data cable connects the GPSMAP 296 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

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I

NSTALLATION

 I

NFORMATION