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外置SCSI接口引脚界说(单端信号方法)

本站为您提供的外置SCSI接口引脚定义(单端信号方式),外置SCSI接口引脚定义(单端信号方式)
SCSI 是 Small Computer System Interface 的缩写,外置式 50 针接口的外观为母插座:

外置SCSI接口引脚界说(单端信号方法)


SCSI 是 Small Computer System Interface 的缩写,外置式 50 针接口的外观为母插座:



衔接电缆插头为 50 针公插头:
 

引脚界说





Pin


Name


Dir


DescripTIon

1-25

GND

---

Ground

26

DB0

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<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 0</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>27</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB1</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowlr.gif” width=32 border=0>

Data Bus 1

28

DB2

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<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 2</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>29</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:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowlr.gif” width=32 border=0>

Data Bus 3

30

DB4

<->” src=”mhtml:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowlr.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>31</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>DB5</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowlr.gif” width=32 border=0>

Data Bus 5

32

DB6

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<td bgColor=#c8c8ff>
<P><font color=blue>Data Bus 6</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>33</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:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowlr.gif” width=32 border=0>

Data Bus 7

34

PARITY

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<td bgColor=#c8c8ff>
<P><font color=blue>Data Parity (odd Parity)</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>35</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>GND</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Ground

36

GND

---

Ground

37

GND

---

Ground

38

TMPWR

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<td bgColor=#c8c8ff>
<P><font color=blue>TerminaTIon Power</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>39</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>GND</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Ground

40

GND

---

Ground

41

/ATN

<--

AttenTIon

42

n/c

Not connected

43

/BSY

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<td bgColor=#c8c8ff>
<P><font color=blue>Busy</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>44</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/ACK</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img decoding=

Acknowledge

45

/RST

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<td bgColor=#c8c8ff>
<P><font color=blue>Reset</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>46</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/MSG</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowr.gif” width=32 border=0>

Message

47

/SEL

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<td bgColor=#c8c8ff>
<P><font color=blue>Select</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>48</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue>/C/D</font></P></td>
<td bgColor=#c8c8ff>
<P><font color=blue><img height=9 alt=” src=”mhtml:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowr.gif” width=32 border=0>

Control/Data

49

/REQ

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<td bgColor=#c8c8ff>
<P><font color=blue>Request</font></P></td>
</tr>
<tr>
<td bgColor=#c8c8ff>
<P><font color=blue>50</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:http://www.pp51.com/za/300/data/SCSI(danc).mht!http://www.hj-tech.com/file/sup/io/pcnio/gif/arrowr.gif” width=32 border=0>

Input/Output

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