SCSI接口界说图(25针外置)
SCSI 是 Small Computer System Interface 的缩写,外置式 25 针接口为扫描仪等低速设备运用,接口外观为母插座:
衔接电缆插头为 25 针公插头:
引脚界说 |
Pin | Name | Dir | DescripTIon |
---|---|---|---|
1 |
GND |
Ground |
|
2 |
DB1 |
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Data Bus 3 |
4 |
DB5 |
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Data Bus 7 |
6 |
GND |
Ground |
|
7 |
/SEL |
Ground |
|
9 |
TMPWR |
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Reset |
11 |
C/D |
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Input/Output |
13 |
GND |
Ground |
|
14 |
DB0 |
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Data Bus 2 |
16 |
DB4 |
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Data Bus 6 |
18 |
PARITY |
Ground |
|
20 |
/ATN |
AttenTIon |
|
21 |
/MSG |
Acknowledge |
|
23 |
BSY |
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Request |
25 |
GND |
Ground |