Garmin GPS 72 User Manual download pdf (Page 51)

Connecting the Power/Data

The power/data cable connects the GPS 72 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 - 2.0 Amp

fuse.

Interfacing

The following formats are supported for connection of external devices:

GARMIN proprietary Differential GPS (DGPS), NMEA 0183 version 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 GPS 72 also includes

NMEA input with support for the DPT, MTW, and VHW sentences.

You can download a copy of GARMIN’s proprietary communication protocol on the Help and

Support section of our Web Site at www.garmin.com.

8-35

Brown: Data Out

White: Data In

Black: Ground

Red: Power

Introduction

Unit View

Data In

White

Power

Red

Ground

Black

Data Out

Brown

Cable View

Data In

White

Power

Red

Data Out

Brown

Ground

Black

Appendix B

Wiring and Interfacing

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Garmin GPS 72 User Manual Page 51