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Connector pinout: SCSI External D-Sub (PC/Amiga/Mac)
SCSI External D-Sub (PC/Amiga/Mac)
At the controller
At the cable
| pin | name | direction | description | color | | 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 | |
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