Floppy Disk Interface (IDC 34 pin)

 ------------------//------------------
|  1  3  5  7 ... //.. 27  29  31  33  |     (Male)
|  2  4  6  8 .. //... 28  30  32  34  |
 ---------------//---------------------


PIN    SIGNAL           PIN    SIGNAL 

1......GND              2......Density Select
3......GND              4......(reserved)
5......GND              6......(reserved)
7......GND              8......Index
9......GND              10.....Motor Drive A
11.....GND              12.....Select Drive B
13.....GND              14.....Select Drive A
15.....GND              16.....Motor Drive B
17.....GND              18.....Direction
19.....GND              20.....Step
21.....GND              22.....Write Data
23.....GND              24.....Floppy Write Enable
25.....GND              26.....Track 0
27.....GND              28.....Write Protect
29.....GND              30.....Read Data
31.....GND              32.....Head Select
33.....GND              34.....Disk Change

Note:
Usually, for easier installation, all floppy disk drives 
are set up as drive B and we use a twisted cable for drive A.

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