IBM 5170 Fixed Disk and Diskette Drive Adapter -
Cabling Information
J1: For cable to/from floppy drive/s (pin 1 up)
J5: For control cable to/from hard drive/s (pin 1 up)
J4: For data cable to/from C: drive (pin 1 up)
J3: For data cable to/from D: drive (pin 1 up)
Click here to see a hard drive cabling diagram.
Click here to see the difference between a floppy twisted cable and a hard drive twisted cable.