linking D100 to Garmin GTX 327

[Chris_Sinfield]

Hi I have read and I think followed, the instructions for linking them together
Using the Dynon supplied wiring harness serial 2 pin 13 of the twin shielded wire, I have connected to GTX 327 input pin 19. Serial ground pin 22 I have connected to the case as a ground.

but what do you do with the shielded wire at the 327 end, do you connect it to anything?
could not find the info in the past forum messages

Chris..

 

[Rhino]

I've never connected these two, but several things seem wrong here.

By "serial 2 pin 13", I assume you mean pin 13 of the DB-25 connector.

Pin 19 on the GTX 327 is an RS-232 connection, not an encoder connection. Table 4-4 of the GTX 327 Installation Manual (Revision N) lists the encoder connections.

Pin 22 on the GTX 327 is not a signal ground. It's power ground. Table 4-4 also shows the encoder signal ground should be pin 13 or pin 25.

Maybe someone who's actually done these connections can add more detail.