This cable should be used for DTE to DCE (for instance computer to modem) connections without DTR.
8 pin mini-DIN male
connector to the computer
25 pin D-SUB male connector
to the modem
| Signal | mini-DIN8 Pin | Dir | DB 25 Pin | Signal |
|---|---|---|---|---|
| HSKo | 1 | OUT | 4 | RTS |
| HSKi | 2 | IN | 5 | CTS |
| TxD- | 3 | OUT | 2 | TxD |
| RxD- | 5 | IN | 3 | RxD |
| GND+RxD+ | 4+8 | - | 7 | GND |
| 6+20 | DSR+DTR |