DRA-50 and DRA-50M Mini-DIN-6 Radio Connector Pinout:

1 = TX Audio Channel Source - selected by JU5 - A = Right - -  B = Left

2 = Ground

3 = PTT

4 = 9600 Baud RX Audio - Selected by JU7 in the "B" position

5 = 1200 Baud RX Audio - Selected by JU7 in the "A" position

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

Other Optional Connections - DRA-50 ONLY!  *** NOT M ***

Optional +12V = External Power for the Audio Amps (when JU2 is in the "B" position).
Optional CTS = CTCSS hardware logic input used with AllStar Link - JU4
Optional LC = Local Control - JU1

(See jumper document for more information)