I recently picked up an Abbree AR-318 ham radio, but couldn’t find a programming cable pinout anywhere online. After some trial and error, I mapped out the correct connections. Sharing them here to save you time and frustration.
The cable uses a standard RJ45 (8P8C) connector. Here is the pinout and wiring diagram.

| RJ45 | UART |
|---|---|
| Pin 2 | TxD |
| Pin 5 | RxD |
| Pin 6 | GND |
To program the radio, you can use CHIRP. In the device settings, select Baojie BJ-318 as the model – the Abbree AR-318 is 100% software-compatible with it.
This simple cable setup lets you program frequencies, channels, and radio settings without buying the proprietary cable from the manufacturer.
