C Wiring/Interfaces - Garmin StreetPilot GPS StreetPilot GPS Reference Manual

Garmin owner's manual and reference guide streetpilot gps

Table of Contents

Wiring/Interfaces

Interface formats are selected from the System Setup page next to the "Comm Port" tab,

described on page 37. The input/output lines on your StreetPilot are RS-232 compatible, allowing easy

interface to a wide range of external devices, including PCs, differential beacon receivers, marine

autopilots and/or a second GPS receiver.

The NMEA 0183 version 2.3 interface format is supported by the StreetPilot and enables the

unit to drive up to three NMEA devices:

NMEA 0183 version 2.0 Approved sentences:

GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPWPL, GPBOD

GARMIN proprietary sentences:

PGRME (estimated error), PGRMM (map datum), PGRMZ (altitude), PSLIB

(beacon receiver control)

DGPS (Differential GPS) corrections are accepted in RTCM SC-104 version 2.0 format through

the Data In line. The GARMIN GBR 21 is the recommended beacon receiver for use with the

StreetPilot. Other beacon receivers with the correct RTCM format may be used, but may not correctly

display status or allow tuning control from the GPS unit.

Refer to page 68 for information about interface connection details.

Appendix C

Wiring/Interfaces

Table of Contents

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