[Milsurplus] ARC-2 Connections

[David Stinson]

OK- Here's the pin-outs for the ARC-2 I promised:

+24 VDC 1 and 17
-24 VDC, GND  9 and 16
These are all that's needed to run the radio locally.
For remote operation:

Ground pin 4 to remotely pick "Power On" relay
(parallel with front power switch).

Momentarily ground pin 19 to pick "Local Power Off" relay
(throws the front panel power switch to "OFF,"
so the remote control on-off is the master power control).

Microphone audio, pin 3.

Key and Mic PTT, pin 11.

Sidetone to intercom, pin 12.

External Sensitivity control, 
150 ohms between pins 5 and 20.

+24 volts out to accessories, pin 18.

Channel selectors, ground to pick:
Channels 1 through 8,
pins 8, 24, 15, 7, 23, 14, 6, & 22 respective.