25针外置SCSI接口


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:

25 PIN D-SUB FEMALE

连接电缆插头为 25 针公插头:
25 PIN D-SUB MALE

引脚定义


Pin

Name

Dir

Description

1

GND

---

Ground

2

DB1

<->

Data Bus 1

3

DB3

<->

Data Bus 3

4

DB5

<->

Data Bus 5

5

DB7

<->

Data Bus 7

6

GND

---

Ground

7

/SEL

<->

Select

8

GND

---

Ground

9

TMPWR

<->

Termination Power

10

/RST

<->

Reset

11

C/D

-->

Control/Data

12

I/O

-->

Input/Output

13

GND

---

Ground

14

DB0

<->

Data Bus 0

15

DB2

<->

Data Bus 2

16

DB4

<->

Data Bus 4

17

DB6

<->

Data Bus 6

18

PARITY

<->

Data Parity

19

GND

---

Ground

20

/ATN

<--

Attention

21

/MSG

-->

Message

22

/ACK

<--

Acknowledge

23

BSY

<->

Busy

24

/REQ

-->

Request

25

GND

---

Ground


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