Wiring Diagram- GTX 330 to GRT Horizon EFIS

[NewGuy]

Would anyone mind sharing their wiring diagram for installation of a Garmin GTX 330 and a Grand Rapids Sport Horizon?

I just started looking at the GTX 330 manual.
I would like some reassurance...

Ken

 

[Radomir]

There's a wiring diagram on GRT's website that includes 330... that should help for sure.

 

[NewGuy]

Thanks, Radomir.

Looks like pins 1 & 22 from the Master Display go to pins 24 & 25 on the GTX 330.

Looks simple enough...

 

[Radomir]

I just noticed you said "Sport Horizon". Which one do you have? Sport or Horizon? They are two different things and pin assignment is not the same. Either way just connect serial in and out and thats it... Pins 1and 22 would apply to Horizon but not Sport.

 

[NewGuy]

Radomir,

I have a Sport. I guess I had the symantics goofed up.

Anyway, on page 8-2 of the installation manual, it says to connect to pins 24 & 25 of the GTX 330.

So, I'm straight now.

Thanks for the help.

Ken