SCSI = Small Computer System Interface
25 PIN D-SUB FEMALE at the controller
25 PIN D-SUB MALE at the cable.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | /REQ | OUT | Request |
| 2 | /MSG | OUT | Message |
| 3 | I/O | OUT | Input/Output |
| 4 | /RST | IN/OUT | Reset |
| 5 | /ACK | IN | Acknowledge |
| 6 | BSY | IN/OUT | Busy |
| 7 | GND | - | Ground |
| 8 | DB0 | IN/OUT | Data Bus 0 |
| 9 | GND | - | Ground |
| 10 | DB3 | IN/OUT | Data Bus 3 |
| 11 | DB5 | IN/OUT | Data Bus 5 |
| 12 | DB6 | IN/OUT | Data Bus 6 |
| 13 | DB7 | IN/OUT | Data Bus 7 |
| 14 | GND | - | Ground |
| 15 | C/D | OUT | Control/Data |
| 16 | GND | - | Ground |
| 17 | /ATN | IN | Attention |
| 18 | GND | - | Ground |
| 19 | /SEL | IN/OUT | Select |
| 20 | PARITY | IN/OUT | Data Parity |
| 21 | DB1 | IN/OUT | Data Bus 1 |
| 22 | DB2 | IN/OUT | Data Bus 2 |
| 23 | DB4 | IN/OUT | Data Bus 4 |
| 24 | GND | - | Ground |
| 25 | TMPWR | IN/OUT | Termination Power |
Notes
- Direction is Device relative Bus (other Devices).
- For more informations, references and sources go to SCSI Technology