| 13 Pin Proprietary | Pin | Signal |
|---|---|---|
|
| 1 | Not Used |
| 2 | Not Used | |
| 3 | Common Ground | |
| 4 | Volume | |
| 5 | Bootstrap (BTS_N) (for programming) | |
| 6 | Not Connected | |
| 7 | +12V DC (VPP) (for programming) | |
| 8 | +13.8V | |
| 9 | PTT (connect to pin 3 for TX) | |
| 10 | TX Data | |
| 11 | Mic Audio | |
| 12 | Hanger | |
| 13 | RX Data |