Got you covered
Steve I got you covered*
PIN NUMBER* AND FUNCTION
1 Ground
2 ext suppr (for dme, to sync transponder and dme, not used w/o dme)
3 D4 (NOT USED FOR MY DYNON EFIS D-10)
4 B4
5 B2
6 B1
7 A4
8 C1
9 C4
10 A2
11 C2
12 A1
13 14v DIMMER (28v needs a 56 Ohm 15 watt resistor)
14 14 VOLT DC IN
15 REMOTE IDENT (GOES TO GROUND)
Pin number can be read on the tray plug or on the uniy (with a magnifing glass). If looking at the back of the transponder from left to right (inboard to outboard) the numbers go 1 thru 15.
Pins 3 thru 12 are for the encoder. 3 was not used with my encoder (Dynon). If your encoder has a strobe, it is not used on the collins.
Great unit, enjou G