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SCSI接口界说图(25针外置)

本站为您提供的SCSI接口定义图(25针外置),SCSI接口定义图(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使用,接口外观为母插座:

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

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 1</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>3</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB3</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0>

Data Bus 3

4

DB5

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 5</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>5</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB7</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0>

Data Bus 7

6

GND

---

Ground

7

/SEL

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Select</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>8</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>GND</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Ground

9

TMPWR

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>TerminaTIon Power</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>10</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/RST</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0>

Reset

11

C/D

-->” src=”mhtml:/article/UploadPic/2007-11/20071121124230305.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Control/Data</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>12</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>I/O</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230305.gif” width=32 border=0>

Input/Output

13

GND

---

Ground

14

DB0

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 0</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>15</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB2</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0>

Data Bus 2

16

DB4

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 4</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>17</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB6</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0>

Data Bus 6

18

PARITY

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Data Parity</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>19</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>GND</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Ground

20

/ATN

<--

AttenTIon

21

/MSG

-->” src=”mhtml:/article/UploadPic/2007-11/20071121124230305.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Message</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>22</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/ACK</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Acknowledge

23

BSY

<->” src=”mhtml:/article/UploadPic/2007-11/20071121124230864.gif” width=32 border=0></font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>Busy</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>24</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/REQ</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:/article/UploadPic/2007-11/20071121124230305.gif” width=32 border=0>

Request

25

GND

---

Ground

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