Garmin rino 520 User Manual

Interface formats are selected in the Setup Interface Page. 

See also the “MapSource Setup” section of this Appendix 

for information on using the Rino 520/530 with MapSource. 

The input/output lines on your Rino 520/530 unit can be 

made RS232 compatible by using the optional RS232 PC 

Interface Cable accessory available from Garmin, in order 

to interface to a wide range of external devices, including 

PCs, differential beacon receivers, marine autopilots, or a 

second GPS receiver. Refer to the Garmin web site www.

garmin.com for the RS232 Cable Accessory ordering 

information.
The NMEA 0183 version 3.01 interface format is 

supported by the Rino 520/530 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. The Garmin GBR 21 and GBR 23 are the 

recommended beacon receivers for use with the Rino 

520/530. 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. 

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