DRA-52 Mini-DIN-6 Pinout:

1 = TX Audio - selected by JU1 - A = Right - B = Left

2 = Ground

3 = PTT

4 = 9600 Baud RX Audio - Selected by JU3 in the "B" position

5 = 1200 Baud RX Audio - Selected by JU3 in the "A" position

6 = COS - Not normally used - (AllStar hardware COS input)