DRA-54 RJ45 Pinout:

Pinout shown as you are looking into the open end of the RJ45 female socket on the DRA-54.
Orientation is - contact pins are up and the locking tab slot is down.
The pinout follows standard EIA Ethernet.

 12345678
 ________
|''''''''|
|        |
|__    __|
|__|__|__|

1 = RX Audio

2 = TX Audio - source channel selected by JU4 (Left or Right)

3 = PTT

4 = COS - Not normally used - (AllStar hardware COS input when JU1 is installed)

5 = CTCSS - Not normally used - (AllStar hardware CTCSS input when JU3 is installed)

6 = Ground

7 = Ground

8 = Ground