HDD and other storage devices connectors pinouts
Extensa 600/600 CD external FDD in comparsion with two standart ones

 

Desktop FDD Standart Shugart-26 Notebook FDD Disassembled external FDD LPT pins on notebook
Molex+5 1 VCC+5 1 VCC+5 23
8 /INDEX 2 /INDEX 2 /INDEX 2
Molex+5 3 VCC+5 3 UNUSED NC
12 !selb 4 /DRVS 4 /DRVS 10
Molex+5 5 VCC+5 5 VCC+5 24
34 !dchng 6 !dchng 6 !dchng 6
N/A 7 reserved 7 reserved NC
Not supported 8 !rdy 8 supported, but not used NC
Not supported 9 !media 9 supported, but not used NC
16 !motb 10 /MOTE 10 /MOTE 11
2 !denssel 11 !denssel 11 UNUSED NC
18 !dir 12 !dir 12 !dir 16
N/A 13 unknown 13 not importaint 20
20 !step 14 !step 14 !step 17
Warning! -> 15 GND 15 VCC+5 (!!!) 19
22 !wrda 16 !wrda 16 !wrda 12
1..33 17 GND 17 GND 18
24 !wren 18 !wren 18 !wren 13
1..33 19 GND UNUSED NC
26 !trk0 20 !trk0 20 !trk0 3
1..33 21 GND 21 GND 25
28 !wp 22 !wp 22 !wp 4
1..33 23 GND UNUSED NC
30 !data read 24 !data read 24 !data read 5
1..33 25 GND 25 GND 21
32 !side1 26 !side1 26 !side1 15

Notes.

1) Notebook detects an external FDD (and swithes LPT mode) by pulling some VCC or GND pins together.

2) Most desktop FDDs requires no +12, but eats bigger current so it's better to take VCC+5 from more powerful HDD/CD power cable.

3) See note about Pin 11 in Standart Shugart-26 Notebook FDD description.

4) Without pin 13, the entire system works well.

 

So, a common desktop FDD can be used for Extensa 600/600CD pretty well.

26 pin IDC male connector layout
26 pin IDC male connector
at the External FDD (cover open)
25 pin D-SUB female connector layout
25 pin D-SUB female connector
at the Notebook
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