Garmin 521 Installationsanweisungen

Use the diagrams below to help identify the connectors on the back of your GPSMAP 400/500 series chartplotter. Every possible chartplotter 

configuration is not represented in the diagrams, but every possible connector type is listed for identification purposes. Every connector on the 

back of the chartplotter may not be used for all installations.

➊

Wiring harness

➋

NMEA 2000

➌  

External GPS 

antenna (sold 

separately)

➍

   Compatible XM 

antenna with 

audio adapter 

(sold separately)

➎

   Compatible XM 

antenna (sold 

separately)

➊

➋

➌

➌

➎

➌

➊

➍

➋

➌

➋ ➊

➊

To turn on your chartplotter for the first time, press and hold the   PoWeR key until the chartplotter beeps and turns on. Using the ROCKER 

and the SeLect keys, follow the screens to configure your chartplotter.

Because water is necessary to carry the sonar signal from the sounder, the transducer must be in the water to work properly. You cannot get a 

depth or distance reading when the transducer is out of the water. 
When you place your boat in the water, check for leaks around any screw holes that were added below the water line. Do not leave your boat in 

the water for an extended period of time without checking for leaks.