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encoder compatibility

Printed From: Avidyne
Category: Avidyne General
Forum Name: SkyTrax Series ADS-B Receivers & Transceivers
Forum Description: Topics on the Avidyne SkyTrax 978 MHz Receivers & Transceivers
URL: http://forums.avidyne.com/forum_posts.asp?TID=1155
Printed Date: 25 Dec 2024 at 11:22am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: encoder compatibility
Posted By: cardinal driver
Subject: encoder compatibility
Date Posted: 21 Sep 2016 at 12:21pm
I having a Skytrax 100 installed, and the avionics shop reports that 

The current encoder installed in the aircraft is not compatible with the Skytrax Serial Altitude input needed so we will need to replace the existing encoder with a unit that is capable of outputting serial altitude data. 

The blind encoder was installed in 2013, it is a Transcal model SSD120-30N.  I checked before installing this model if it would be compatible with the IFD-540, and it was. 

I'm surprised that the encoder would not be compatible with the Skytrax 100.  Can anyone enlighten me?

TIA




Replies:
Posted By: Ibraham
Date Posted: 21 Sep 2016 at 2:16pm
The link is for install manual, you can check Appendix D for encoder compatibility

http://www.navworx.com/documents/TSO%20ADS600-B%20Installation%20Manual%20240-0008-00-39.pdf


Posted By: AviSimpson
Date Posted: 21 Sep 2016 at 2:29pm
Originally posted by cardinal driver cardinal driver wrote:

I having a Skytrax 100 installed, and the avionics shop reports that 

The current encoder installed in the aircraft is not compatible with the Skytrax Serial Altitude input needed so we will need to replace the existing encoder with a unit that is capable of outputting serial altitude data. 

The blind encoder was installed in 2013, it is a Transcal model SSD120-30N.  I checked before installing this model if it would be compatible with the IFD-540, and it was. 

I'm surprised that the encoder would not be compatible with the Skytrax 100.  Can anyone enlighten me?

TIA


Do you have an AXP340 installed?


-------------
Simpson Bennett
Avidyne Corporation
Product Manager


Posted By: pburger
Date Posted: 21 Sep 2016 at 2:41pm
Your encoder only has a gray code (parallel) output.  The IFD-540 can accept either RS-232 serial or gray code (parallel) input, so your encoder will work with the IFD-540.  I suspect the Skytrax 100 requires a RS-232 signal which your encoder doesn't have.


Posted By: AviSimpson
Date Posted: 21 Sep 2016 at 2:45pm
The IFD540 can also accept 429 altitude data.

If an AXP340 is installed you can use the altitude output from pin 6.


-------------
Simpson Bennett
Avidyne Corporation
Product Manager



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