Reference and Sources: 
68 PIN SCSI connector
| Pin | Name | Dir | Description | | 1 | +DB12 | IN/OUT | +Data Bus 12 | | 2 | +DB13 | IN/OUT | +Data Bus 13 | | 3 | +DB14 | IN/OUT | +Data Bus 14 | | 4 | +DB15 | IN/OUT | +Data Bus 15 | | 5 | +DPB1 | IN/OUT | +Data Bus Parity (odd Parity) | | 6 | GND | ------ | Ground | | 7 | +DB0 | IN/OUT | +Data Bus 0 | | 8 | +DB1 | IN/OUT | +Data Bus 1 | | 9 | +DB2 | IN/OUT | +Data Bus 2 | | 10 | +DB3 | IN/OUT | +Data Bus 3 | | 11 | +DB4 | IN/OUT | +Data Bus 4 | | 12 | +DB5 | IN/OUT | +Data Bus 5 | | 13 | +DB6 | IN/OUT | +Data Bus 6 | | 14 | +DB7 | IN/OUT | +Data Bus 7 | | 15 | +DPB | IN/OUT | +Data Bus Parity (odd Parity) | | 16 | DIFFSENSE | ? | ? | | 17 | TERMPWR | IN/OUT | Termination Power | | 18 | TERMPWR | IN/OUT | Termination Power | | 19 | RES | ------ | Reserved | | 20 | +ATN | IN | +Attention | | 21 | GND | ------ | Ground | | 22 | +BSY | IN/OUT | +Bus is busy | | 23 | +ACK | IN | +Acknowledge | | 24 | +RST | IN/OUT | +Reset | | 25 | +MSG | OUT | +Message | | 26 | +SEL | IN/OUT | +Select | | 27 | +C/D | OUT | +Control or Data | | 28 | +REQ | OUT | +Request | | 29 | +I/O | OUT | +In/Out | | 30 | GND | ------ | Ground | | 31 | +DB8 | IN/OUT | +Data Bus 8 | | 32 | +DB9 | IN/OUT | +Data Bus 9 | | 33 | +DB10 | IN/OUT | +Data Bus 10 | | 34 | +DB11 | IN/OUT | +Data Bus 11 | | 35 | -DB12 | IN/OUT | -Data Bus 12 | | 36 | -DB13 | IN/OUT | -Data Bus 13 | | 37 | -DB14 | IN/OUT | -Data Bus 14 | | 38 | -DB15 | IN/OUT | -Data Bus 15 | | 39 | -DPB1 | IN/OUT | -Data Bus Parity (odd Parity) | | 40 | GND | ------ | Ground | | 41 | -DB0 | IN/OUT | -Data Bus 0 | | 42 | -DB1 | IN/OUT | -Data Bus 1 | | 43 | -DB2 | IN/OUT | -Data Bus 2 | | 44 | -DB3 | IN/OUT | -Data Bus 3 | | 45 | -DB4 | IN/OUT | -Data Bus 4 | | 46 | -DB5 | IN/OUT | -Data Bus 5 | | 47 | -DB6 | IN/OUT | -Data Bus 6 | | 48 | -DB7 | IN/OUT | -Data Bus 7 | | 49 | -DPB | IN/OUT | -Data Bus Parity (odd Parity) | | 50 | GND | ------ | Ground | | 51 | TERMPWR | IN/OUT | Termination Power | | 52 | TERMPWR | IN/OUT | Termination Power | | 53 | RES | ------ | Reserved | | 54 | -ATN | IN | -Attention | | 55 | GND | ------ | Ground | | 56 | -BSY | IN/OUT | -Bus is busy | | 57 | -ACK | IN | -Acknowledge | | 58 | -RST | IN/OUT | -Reset | | 59 | -MSG | OUT | -Message | | 60 | -SEL | IN/OUT | -Select | | 61 | -C/D | OUT | -Control or Data | | 62 | -REQ | OUT | -Request | | 63 | -I/O | OUT | -In/Out | | 64 | GND | ------ | Ground | | 65 | -DB8 | IN/OUT | -Data Bus 8 | | 66 | -DB9 | IN/OUT | -Data Bus 9 | | 67 | -DB10 | IN/OUT | -Data Bus 10 | | 68 | -DB11 | IN/OUT | -Data Bus 11 |
Note: Direction is Device relative Bus (other Devices).
For more informations, references and sources go to
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