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  #1  
Old 05-14-2020, 10:48 AM
SteveL SteveL is offline
 
Join Date: Feb 2014
Location: Granbury, Tx
Posts: 30
Default GTR 20 as comm 2

Obviously missing something in the G3X manual. I'm wiring my RV7A panel. 2 GDU 460s, 1 GTN 650 as comm 1, GTR 20 as comm 2, and my GMA 245 audio panel. 2 Ray Allen stick grips. I have great comm 1 through the 650 and PTT on the left stick and great intercomm both headsets. GTR P2001 pin 15 shows N/C. How is the right stick communicating with the rest of the system?
Thanks in advance!
SteveL
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  #2  
Old 05-14-2020, 11:34 AM
sjarrell sjarrell is offline
 
Join Date: Jul 2010
Location: Hendersonville, NC
Posts: 167
Default

The GMA 245 has inputs for both the pilot's PTT on J2401 pin 34 and the co-pilot's on J2402 pin 33 and takes care of sending the output to the GTR 20 P2001 pin 17. The GTR 20 P2001 pin 17 is for both the pilot and co-pilot's PTT.
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