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Connecting the power/data, Interfacing – Garmin GPSMAP 76 User Manual

Page 65

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GPSMAP 76 Owner’s Manual

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ppendIx

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c

onnectInG

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nterfAcInG

Connecting the Power/Data

T

he power/data cable connects the GPSMAP 76 to a 8–35

volt DC system and provides interface capabilities for

connecting external devices. The color code in the diagram

below indicates the appropriate harness connections.

Replacement fuse is a AGC/3AG - 1.5 Amp fuse.

Interfacing

The following formats are supported for connection of

external devices:
Garmin proprietary Differential GPS (DGPS), NMEA 0183

versions 2.3, ASCII Text Output, RTCM SC-104 input

(version 2.0).

The following are the sentences for NMEA 0183, version 2.3

output:
Approved sentences—GPRMC, GPGGA, GPGSA, GPGSV,

GPGLL, GPBOD, GPRTE, and GPWPL; Proprietary

sentences—PGRME, PGRMZ, and PSLIB. The GPSMAP

76 will accept NMEA input with support for the DBT, DPT,

MTW, and VHW sentences.
You can dowload a copy of Garmin’s proprieatry

communication protocol on the Help and Support section of

our Web site at www.garmin.com

Unit View

Data In

White

Power

Red

Ground

Black

Data Out

Brown

Cable View

Data In

White

Power

Red

Data Out

Brown

Ground

Black

8-35

Brown: Data Out

White: Data In

Black: Ground

Red: Power

volts DC

Autopilot/

NMEA Device

GBR 21/23

Beacon

Receiver