(As viewed from rear panel)
| yaesu vertex vx-1700 Pin | Pin Name | Description |
| 1 | DATA IN | (RX) |
| 2 | GND | |
| 3 | DATA PTT | |
| 4 | DCD | |
| 5 | DATA OUT | (TX) |
| 6 | SQL OUT |
| yaesu vertex vx-1700 Pin | Pin Name | Description |
| 1 | DATA IN | (RX) |
| 2 | GND | |
| 3 | DATA PTT | |
| 4 | DCD | |
| 5 | DATA OUT | (TX) |
| 6 | SQL OUT |