Garmin eTrex Vista Owner's Manual - Page 74
Appendix F - cable
UPC - 753759028329
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Appendix F Wiring Diagram Interface formats are selected from the Setup 'Interface Page' on page 52 of this manual. The input/output lines on your eTrex Vista unit 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 3.0 interface format is supported by the eTrex Vista and enables the unit to drive up to three NMEA devices. NMEA 0183 Version 3.0 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. The GARMIN GBR 21 and GBR 23 are the recommended beacon receivers for use with the eTrex Vista. 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. The eTrex Vista may be hard-wired to a serial connector using the Data Cable (see Appendix B for more information). Refer to the wiring diagram and the eTrex Vista unit data connection illustrated below. The PC Interface Cable provided with this unit allows you to connect your eTrex Vista to a PC-compatible computer's serial port. eTrex Vista Connector Data Cable 64 Ground (-) Data Out Data In Power (+) Ground (-) Data Out Data In Black White Green