Garmin GPS 120XL User Manual download pdf (Page 62)

NMEA 0180, NMEA 0182,

NMEA 0183 version 1.5:

Approved sentences:

GPBWC, GPGLL, GPRMB, GPRMC, GPXTE,

GPVTG, GPWPL

Proprietary sentences:

PGRMM (map datum), PGRMZ

(altitude), PSLIB (beacon rec. control)

NMEA 0183 version 2.0:

Approved sentences:

GPGGA, GPGLL, GPGSA, GPGSV,

GPRMB, GPRMC, GPRTE, GPWPL

Proprietary sentences:

PGRME (estimated error), PGRMM (map

datum), PGRMZ (altitude), PSLIB (beacon

receiver control)

Wiring &

Specifications

APPENDIX B

Connecting the power/data cable

The power/data cable connects the GPS 120XL sys-

tem to a 10-40 volt DC power source and provides inter-

face capabilities for connecting NMEA devices and an

external alarm The diagram below indicates the appropri-

ate harness connections.

To connect the GPS 120XL to a power source:

1. Connect the RED harness lead to the positive side of a 10-40 volt DC power source. Make sure

the power lead has an in-line 1-amp fuse installed.

2. Connect the BLACK harness lead to a ground strip or the negative side of a

10-40 volt DC power source.

To connect an external alarm, connect the ground side of the alarm device to the

YELLOW harness lead. (100 mA DC load max.) The following interface formats are sup-

ported by the GPS 120XL for driving three NMEA devices:

PIN 1 (red): 10-40 volts DC

PIN 2 (black): Ground

PIN 3 (blue): NMEA out

PIN 4 (brown): NMEA in

PIN 5 (white): No connection

PIN 6 (green): No connection

PIN 7 (yellow): alarm low

Pin assignment

(-) (+)

10-40 volts DC

Autopilot/

NMEA Device

GBR 21

Beacon

Receiver

Alarm/

Relay

(-)

Shield Grounded

Through GPS

(+)

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Garmin GPS 120XL User Manual Page 62

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