8-pin miniature DIN connector (female)
| Pin No. | Symbol | Signal
Direction |
Signal Name |
| 1 | GND | - | Ground |
| 2 | TXD | OUT | Transmitted data |
| 3 | RXD | IN | Recieve data |
| 4 | RTS | OUT | Request to send |
| 5 | CTS | IN | Clear to send |
| 6 | DSR | IN | Data set ready |
| 7 | DTR | OUT | Data terminal ready |
| 8 | DCD | IN | Data carried detect |
| E | CGND | - | Frame Ground |
All signal directions as viewed from PX-4
To connect use Maplins order code JX06G 8pin miniature DIN line plug.