| CORNELL-DUBLIER | ||
| model(s) | wire color | pin number |
| mark X mark 20 hi-z(use an amplified mic only) |
Audio | 1 |
| Ground | 3 | |
| PTT | 2 | |
| receive | n/c | |
| model(s) | wire color | pin number |
| mark 12 | Audio | 1 |
| Ground | 4 | |
| PTT | 2 | |
| receive | 3 | |
| model(s) | wire color | pin number |
| mark 26 | Audio | 2 |
| Ground | 4 | |
| PTT | 3 | |
| receive | n/c | |