Garmin 500 series GPS Receiver User Manual


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50 GPSMAP
®
500 Series Owner’s Manual
InStallInG the unIt
Connecting to a NMEA device
You can connect the unit to other NMEA compatible equipment,
such as a DSC or AIS device. Refer to the wiring diagram on
page 49 for connecting the unit to NMEA compatible devices.
To install the wiring harness to a GPS or other NMEA
device:
1. Follow the voltage source installation steps (see page 48).
For Garmin units, the ground (Black) wires serve as NMEA
ground and must be attached together or on the same
terminal. Refer to the wiring diagram of your GPS unit for
wire identication.
2. Connect the Blue (NMEA Out 1) wire from the unit to the
NMEA In wire on the NMEA unit’s wiring harness, and the
brown (NMEA In 1) wire to the NMEA Out wire on the NMEA
unit’s wiring harness.
3. Repeat step 2 using the Grey and Violet wires for an
additional NMEA unit.
4. Set the unit’s serial port(s) to use NMEA In/NMEA Out
(page 30).
Interfacing with NMEA
The unit allows for NMEA 0183, Version 3.01 output with a
compatible GPS or navigation device. You must set the unit’s serial
port(s) to NMEA In/NMEA Out to send data and receive data
(page 30).
The SDDBT, SDDPT, SDMTW, SDVHW, SDWPL sentences are
sent and received in NMEA 0183, Version 3.01.
You can purchase complete information about National Marine
Electronics Association (NMEA) format and sentences from:
NMEA
Seven Riggs Avenue
Severna Park, MD 21146 USA
www.nmea.org
Installing the Unit to a Garmin CANet
The unit is a CANet-compatible Garmin device, and can send or
receive sonar information from another CANet-compatable Garmin
device. Using the CANet optimizes the performance of CANet-
compatible units, allowing sonar information from a Sounder or
FishndertobesharedwithuptotwoCANetcompatibleGarmin
GPS units. A standard NMEA connection only allows depth,
temperature, and speed information to be sent to a single GPS device,
whereas a CANet connection provides full sonar readings, including
Ultrascroll
™
, so you can view and control the same information on
your compatible Garmin GPS unit(s) as you can on your compatible
GarminSounderorFishnder.
NOTE: To use the Garmin CANet with your unit, you must
obtain a CANet Kit. Contact your Garmin dealer, or visit
www.garmin.com.
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