Dynon D100 connection - iFly Owners Q&A

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Dynon D100 connection

7/16/2012 2:12 PM

neill

Joined: 2/1/2012

Posts: 4

Dynon D100 connection

I downloaded the latest version software for my 720 and decided to update my Dynon D100 EFIS panel at the same time. I orderd the serial cable from Ifly and tried to connect the 720 to the EFIS panel and could not get it to work. Anyone made this happen that may be able to shed some light? I tried to connect on the DB9 PC interface on the D100 which per there instructions was one of several methods. I figured before I make a DB9 connector with blank wire off of it to connect to the other option I would ask the crowd.

7/16/2012 2:57 PM

Alasdair

Joined: 10/12/2011

Posts: 411

Re: Dynon D100 connection

I have a D10A not a D100, most likely the same issue as I had.

My Dynon already had a DB9 connected to it, as used for software updates to the Dynon. This plug has both pins 2 and 3 connected to the EFIS. Pin 3 is input to EFIS; Pin 2 is EFIS Out; Pin 5 is ground.

On the iFly Pin 3 is GPS out, Pin 2 is In. So on paper it all sounds goods 3>3, 2>2, 5>5. I got one of the iFly USB to serial adaptes and simply plugged the two together. No joy. Didn't work.

Turns out the whataever the EFIS is putting out on Pin 2 is confusing the iFly as to what is actually attached on the serial port and I got no nmea ., I clipped pin 2 off of the iFly usb to serial adapter so that it couldn't receive whatver the EFIS was sending and everything immediately worked. AP suggested I do it the other way around that is remove the pin from the plug on the EFIS end but since that plug does double duty for EFIS updates I didn't want to do that.

Regardless - Once I snipped pin2 off so that the connection is purely one way it worked.

Here's the post from when we figured this out originally:

Forum: iFly Owners Q&A

10/25/2011 6:55 PM

Alasdair

Posts: 87

Title: Re: NMEA Output Problem

Walter - Sorry for the confusion. No was just to make the point that all I wanted/needed was one way from the GPS. Anyway, I clipped pin 2 off of the ifly supplied USB/Serial cable and it instantly worked. Everything is where is should be HSI on the EFIS, Maps on the GPS. Love it. I used the sim...