This interface allows you to connect up to 5 playstation pads in a
parallel port, having separated Force Feedback each. You have to use
an external 5V supply like a wall cube or you can get them from inside
the computer, directly from the PSU or via an USB conector.
With this interface, the driver behaves exactly like the PSX does,
turning on a bit which sets the pad in listen mode, and every pad shares
the same data cable. The other one has a different data cable for each
pad and allways set both them to listen which makes one to timeout and
therefore it stops the feedback motor.

Note: 5v and 9v negative lines and the paralellel GND are all connected
to the pin 6. These are the front view of the female conectors or the
soldering side of the pad connector.
My favorite to make Sub-Zero's Brutality in Ultimate MK3
Just make sure to have the parallel port set in ECP or EPP mode in
the BIOS setup.
This interface is uncompatible with DirectPad, however it is compatible
with many "modern" parallel ports, witch the original does
not, and it allows you to connect 2 pads!!
