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HwB: SCSI Internal (Single-ended) Connector
SCSI Internal (Single-ended)
SCSI=Small Computer System Interface.
Based on an original design by Shugart Associates. SCSI was
ratified in 1986.
(At the controller & harddisk)
(At the cable.)
50 PIN IDC MALE at the controller & harddisk.
50 PIN IDC FEMALE at the cable.
| Pin | Name | Dir | Description |
|---|---|---|---|
| 2 | DB0 |  |
Data Bus 0 |
| 4 | DB1 | |
Data Bus 1 |
| 6 | DB2 | |
Data Bus 2 |
| 8 | DB3 | |
Data Bus 3 |
| 10 | DB4 | |
Data Bus 4 |
| 12 | DB5 | |
Data Bus 5 |
| 14 | DB6 | |
Data Bus 6 |
| 16 | DB7 | |
Data Bus 7 |
| 18 | PARITY | |
Data Parity (odd Parity) |
| 20 | GND |  |
Ground |
| 22 | GND | |
Ground |
| 24 | GND | |
Ground |
| 26 | TMPWR | |
Termination Power |
| 28 | GND | |
Ground |
| 30 | GND | |
Ground |
| 32 | /ATN |  |
Attention |
| 34 | GND | |
Ground |
| 36 | /BSY | |
Busy |
| 38 | /ACK | |
Acknowledge |
| 40 | /RST | |
Reset |
| 42 | /MSG |  |
Message |
| 44 | /SEL | |
Select |
| 46 | /C/D | |
Control/Data |
| 48 | /REQ | |
Request |
| 50 | /I/O | |
Input/Output |
All odd-numbered pins, except pin 25, are connected to ground. Pin 25 is left open.
Contributor: Joakim Цgren Source: ? Please send any comments to Joakim Цgren.