RA-64M Mini-DIN-6 Pinout:

J1 - TX-RX

1 = TX Audio - selected by JU2 - Left / Right

2 = Ground

3 = PTT

4 = 9600 Baud RX Audio - Selected by JU1 J1 in the 9600 position

5 = 1200 Baud RX Audio - Selected by JU1 J1 in the 1200 position

6 = COS Logic Input



JU3 - RX ONLY

1 = CTCSS Logic Input - controlled by jumper J3B (place jumper to enable)

2 = Ground

3 = NO Connection

4 = 9600 Baud RX Audio - Selected by JU1 J3 in the 9600 position

5 = 1200 Baud RX Audio - Selected by JU1 J3 in the 1200 position

6 = COS Logic Input