Diskette Drive Cable Connector Signals

Pin

Signal Name

I/O

Pin

Signal Name

I/O

 

 

 

 

 

 

1

No Connection

N/A

18

Direction SELECT

O

 

 

 

 

 

 

2

Density Select

O

19

Ground

N/A

 

 

 

 

 

 

3

No Connection

N/A

20

Step

O

 

 

 

 

 

 

4

High Density Out

I

21

Ground

N/A

 

 

 

 

 

 

5

Ground

N/A

22

Write Data

O

 

 

 

 

 

 

6

No Connection

N/A

23

Ground

N/A

 

 

 

 

 

 

7

Ground

N/A

24

Write GATE

O

 

 

 

 

 

 

8

Index

I

25

Ground

N/A

 

 

 

 

 

 

9

Ground

N/A

26

Track 0

I

 

 

 

 

 

 

10

No Connection

N/A

27

Ground

N/A

 

 

 

 

 

 

11

Ground

N/A

28

Write Protect

I

 

 

 

 

 

 

12

Drive Select 1

O

29

Ground

N/A

 

 

 

 

 

 

13

Ground

N/A

30

Read Data

I

 

 

 

 

 

 

14

No Connection

N/A

31

Ground

N/A

 

 

 

 

 

 

15

Ground

N/A

32

SIDE 1 SELECT

O

 

 

 

 

 

 

16

Motor On

O

33

Ground

N/A

 

 

 

 

 

 

17

Ground

N/A

34

Diskette Change

I

 

 

 

 

 

 

138

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Image 140
IBM 2169 manual Diskette Drive Cable Connector Signals Pin Signal Name