Garmin ColorMap Owners Manual - Page 77

Appendix C

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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 67

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67
Wiring/Interfaces
Appendix C
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.