Connector - SCSI-II External Hi D-Sub (Single-ended)50 PIN HI-DENSITY D-SUB FEMALE at the controller & devices. 50 PIN HI-DENSITY D-SUB MALE at the cable. | (at the controller & devices). |  | (To the cable). |
Pin | Name | Direction | Description |
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1-25 | GND | --- | Ground | 26 | DB0 | --- | Data Bus 0 | 27 | DB1 | --- | Data Bus 1 | 28 | DB2 | --- | Data Bus 2 | 29 | DB3 | --- | Data Bus 3 | 30 | DB4 | --- | Data Bus 4 | 31 | DB5 | --- | Data Bus 5 | 32 | DB6 | --- | Data Bus 6 | 33 | DB7 | --- | Data Bus 7 | 34 | PARITY | --- | Data Parity (odd Parity) | 35 | GND | --- | Ground | 36 | GND | --- | Ground | 37 | GND | --- | Ground | 38 | TMPWR | --- | Termination Power | 39 | GND | --- | Ground | 40 | GND | --- | Ground | 41 | /ATN | Input | Attention | 42 | n/c | --- | Not connected | 43 | /BSY | --- | Busy | 44 | /ACK | Input | Acknowledge | 45 | /RST | --- | Reset | 46 | /MSG | Output | Message | 47 | /SEL | --- | Select | 48 | /C/D | Output | Control/Data | 49 | /REQ | Output | Request | 50 | /I/O | Output | Input/Output |
Note: Direction is Device relative Bus (other Devices).
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