jliltd
Well Known Member
I am putting together some equipment I have around to incorporate into a new G3X panel. I have a used GTX 327 digital Mode C transponder and a GDL 88. So I will be installing that for my UAT "out" solution with it's 978 & 1090 "in" for my GTN 750 screen. I know this doesn't provide "in" for the G3X screens but that can be addressed later with a GDL 5X and have everything lit up. But for now I want to put this equipment to use.
The GTX 327 has two serial ports and one will talk to the GDL 88. I want serial air data into the GTX 327 for it's mode C so that will take up the second port. I know I can get this through the GSU 25. I also know the GDU display has 5 usable serial ports. I made a diagram below with purple lines showing the GTX 327 connection options, delineated by numbers in circles:
So option 3 isn't really an option. It will be in place for the GDL 88. So the real question is if there is any preference for option 1 or option 2 for obtaining altitude signal? Would option 1 also support remote tuning of the transponder by the GDU in addition to of altitude? I am missing some of the documentation and am trying to get my hands on it this week but figured I'd ask here. Option 1 or Option 2? Or other?
Thanks,
Jim
The GTX 327 has two serial ports and one will talk to the GDL 88. I want serial air data into the GTX 327 for it's mode C so that will take up the second port. I know I can get this through the GSU 25. I also know the GDU display has 5 usable serial ports. I made a diagram below with purple lines showing the GTX 327 connection options, delineated by numbers in circles:
So option 3 isn't really an option. It will be in place for the GDL 88. So the real question is if there is any preference for option 1 or option 2 for obtaining altitude signal? Would option 1 also support remote tuning of the transponder by the GDU in addition to of altitude? I am missing some of the documentation and am trying to get my hands on it this week but figured I'd ask here. Option 1 or Option 2? Or other?
Thanks,
Jim