IBM 560E User Manual

   

 

The external diskette drive is connected through the diskette drive
connector, located on the left side of the computer. Figure 2-9
shows the pin assignments of the connector:

25

26

1

2

Figure

2-9. Diskette Drive Connector Pin Assignments

1

GND

Ground

2

DRATE1

Data Rate Select 1

3

VCC5B

+

5V dc

4

–

Reserved

5

GND

Ground

6

–

Reserved

7

GND

Ground

8

−

INDEX

Index

9

–

Reserved

10

–

Reserved

11

−

DRVSEL0

Drive Select 0

12

DRATE0

Data Rate Select 0

13

−

MOTEN0

Motor Enable 0

14

–

Reserved

15

−

FDIR

Direction In

16

−

FSTEP

Step

17

WRDATA

Write Data

18

−

FWREN

Write Enable

19

GND

Ground

20

−

TRAK0

Track 0

21

–

Reserved

22

−

FWPROTECT

Write Protect

23

RDDATA

Read Data

24

−

FSIDE1SEL

Side 1 Select

25

–

Reserved

26

−

DISKCHG

Disk Change

ThinkPad 560/560E System Board