Garmin eTrex Summit Owner's Manual (Software Version 3.00 and above) &nbs - Page 74
Appendix F - data cable
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Appendix F eTrex Summit Connector Power (+) Data In Data Out Ground (-) Data In Data Out Ground Wiring Diagram Green White Black Indexing Slot (align with slot on unit) Data Cable The optional PC Interface Cable (010-10206-00) Interface formats are selected from the SETUP Page. The input/output lines on your eTrex Summit 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 2.0 interface format is supported by the eTrex Summit 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, HCHDG 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 eTrex Summit may be hard-wired to a serial connector using the Data Cable (see your Garmin dealer or visit www.garmin.com for availablity). Refer to the wiring diagram and the eTrex Summit unit data connection illustrated above. 60