| DEC VAXstations, DECstations and DEC"s input adaptor cables Pin | Name | Direction | Description |
|---|---|---|---|
| 1 | GND | ![]() | Common Ground |
| 2 | RxD | ![]() | Receive Data |
| 3 | TxD | ![]() | Transmit Data |
| 4 | -12V | ![]() | -12V power supply |
| 5 | +5B | ![]() | +5V power supply |
| 6 | +12V | ![]() | +12V power supply |
| 7 | device available | -?- | The device shorts this pin to GND to let the host computer notice a plugged-in device |



