Garmin GPSMAP 76C - Manual (Page 92)

82
GPSmap 76C
Appendix
Interface formats are selected from the Interface Setup on page 48 of
this manual. The input/output lines on your GPSmap 76C are RS-232
compatible, allowing easy interface to a wide range of external devices,
including PC’s, differential beacon receivers, marine autopilots, and /or a
second GPS receiver.
The NMEA 0183 version 3.01 interface format is supported by the
GPSmap 76C and enables the unit to drive up to three NMEA devices.
NMEA 0183 Version 3.01 Approved Sentences:
GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPVTG,
GPWPL, GPBOD
Garmin Proprietary Sentences:
PGRME (estimated error), PGRMM (datum string), 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. Beacon receivers with the
correct RTCM format may be used, but may not correctly display status
or allow tuning control from the GPS unit.
The USB Interface Cable provided with
this unit allows you to connect your
GPSmap 76C to a PC-compatible
computer’s USB port.
Interface Wiring Diagram
Unit Power/Data Port View
Optional Bare Wire Serial Port Cable
Power(+)
Data In
Data Out
Ground(-)
GPSmap 76C Owner's Guide copy.indd 82 10/5/2004, 1:57:07 PM