Devices with serial interfaces can be connected to a device in the following ways:
| Adapters | Devices |
|---|---|
| COM-port adapters | All those with a serial configuration interface |
| USB serial adapter | All those with a USB interface |
The COM port adapter must be a two-way D-sub plug with the following PIN assignment:
| Pin | Signal | Signal | Pin |
|---|---|---|---|
| 2 | RxD | TxD | 3 |
| 3 | TxD | RxD | 2 |
| 4 | DTR | DSR | 6 |
| 5 | GND | GND | 5 |
| 6 | DSR | DTR | 4 |
| 7 | RTS | CTS | 8 |
| 8 | CTS | RTS | 7 |
