log wrote:
I am replacing an old ARC with the new Narco Digital. Does anyone have the
pinout for the ARC RT 359A Transponder or where to find it?
Thanks
Barry


Barry,

Here goes:

pin 1 = Ground
2 Ground
3 Remote ident
4 (not used)
5 Remote ident (momentary, to #3)
6 (not used)
7 (not used)
8 Power jumper
9 Switched power out
10 D4
11 Mode C common
12 Lighting
13 A2
14 A1
15 A4
16 B4
17 B2
18 C2
19 B1
20 C4
21 C1
22 14/28 VDC input
23 Power jumper (direct to #8 for 14 VDC, with dropping
resistor for 28VDC)

Hope this helps.

Happy Flying!
Scott Skylane