Pilotjim77
Well Known Member
Hi All,
GRT has a wiring diagram showing the pin connections for a G430.
http://grtavionics.com/media/Horizon-430W.pdf
In the drawing, there is a 12v input with 10k resistors to pins 18-21 on connector B. These also connect to the G430 pins 1,2,7 on P4001 and pin 29 on P4006. I don't understand this because I thought the 430 had it's own required 12v power. Can anyone tell me what this 12v power input is for?
Just trying to understand how this works and why. Thanks for any assistance.
GRT has a wiring diagram showing the pin connections for a G430.
http://grtavionics.com/media/Horizon-430W.pdf
In the drawing, there is a 12v input with 10k resistors to pins 18-21 on connector B. These also connect to the G430 pins 1,2,7 on P4001 and pin 29 on P4006. I don't understand this because I thought the 430 had it's own required 12v power. Can anyone tell me what this 12v power input is for?
Just trying to understand how this works and why. Thanks for any assistance.
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