Wiring And Interfacing; Connecting The Power/Data Cable; Interfacing - Garmin GPSMAP 276C Owner's Manual

Appendix

Wiring and Interfacing

Ground
Voice (-)
Black
Orange
Alarm
White
Voice (+)
Brown
Data In 1
Yellow
Unit Power/Data Connector
Data Out 1 Voice (-)
Blue Orange
Data In 2
Green
Power
Red
Data Out 2
Violet
Power/Data Cable Connector
94

Connecting the Power/Data Cable

The power/data cable connects the GPSMAP 276C to an 11–35-Volt DC system and provides interface
capabilities for connecting external devices. The color code in the diagram below indicates the appropri-
ate harness connections. Replacement fuse is a 3AG - 1.5 Amp fuse.
Data Out 1
Blue
Data In 2
Green
Power
Red
Data Out 2
Violet
Ground
Black

Interfacing

Alarm
The following formats are supported for connection of external devices: GARMIN proprietary Dif-
White
ferential GPS (DGPS), NMEA 0180, 0182, 0183 (versions 1.5, 2.0, 2.3, 3.01), ASCII Text Output, and
Voice (+)
RTCM SC-104 input (version 2.0).
Brown
Data In 1
The following are the Approved Sentences for NMEA 0183, version 3.01 output: GPRMC, GPGGA,
Yellow
GPGSA, GPGSV, GPGLL, GPBOD, GPRTE, and GPWPL. The following are the Proprietary Sentences for
NMEA 0183, version 3.01 output: PGRME, PGRMZ, and PSLIB.
The GPSMAP 276C also includes NMEA input with support for the BWC, DBT, DPT, MTW, VHW,
and XTE sentences.
Garmin' s proprietary communication protocol is available from the Web site (www.garmin.com).
Red: Power
(-)
Black: Ground
11–35V DC
RXD +
Autopilot/
NMEA Device
RXD -
Blue: Data Out 1
Brown
GBR 23
(-)
Beacon
Yellow: Data In 1
Blue
Receiver
(+)
(+)