Brief Description: auto pilot wiring - identify loose wires
The GRT EFIS has four serial in (RX) ports:
30 Used for gps input from my garmin 396 31 EIS in 33 SL30 in (pin 5 on SL30)
32 is marked on the GRT documentation as "inter display link". I wonder if I can use that as the serial in for the autopilot. I emailed Carlos that question tonight.
I email Carlos earlier in the day with a question related to the back up battery wiring. I need a red/white wire to run from the backup battery along with the other two like it. I cannot find the one that must have come with the unit. I do have another red/white wire but it has a female connector and probably goes into the back of the sport. I found two other unused sport connector wires.
I completed the wiring to the autopilot connectore block by attaching the grn/black wire from the servo there. I connected a grn/blk wire from a connecting tab forward to the rear of the EFIS. Once I determine which wire is the serial in, I will connect that wire to it. I labeled the wire. behind the EFIS. I also labeled both grn/blk wires at the connecting block as "serial ap servo to efis".
I attached the white/black wire from the autopilot connector block to the blue wire running out of the EFIS connector which is serial out from the efis to the servo.
The yellow/black wire (mine was actually yellow/blue) from the pitch servo is for the purpose of connecting to an optional switch to disengage each servo separately. I do not intend to use that funtion, so I cut the wire about two inches from the pitch servo connector and pulled it back.
Using the testing meter, I determined that the grn/blk and grn wires loose behind the panel go to the stick switches. My notes tell me those are both for the engine start function. I labeled them.
There is a yellow wire hanging loose and attached to the garmin 396 wiring. I do not recall its function but I will determine that and do something with that wire.
There is a red/yellow wire which I believe to be an alternate power wire to the Dynon D6 backup EFIS. At an earl
