Gecko drive power options

Until recently I have been using Gecko G201's to drive my Taig mill.
I decided to change these by adding the G901 multi stepping board.

The documentation supplied shows an input header option with common
+5volt and common ground settings and I unsure what setting should be
used with my setup which is;

CNC4PC Parallel port interface board with buffered outputs to Gecko's.

Previously the Gecko's were fed with +5 volt to terminal 10.

I suspect I should set the input options to +5 volt and feed +5 volt
to terminal 10, but would be appreciative of any positive advice.

I have tried several times to contact Gecko, but my request keep
getting sent back as Spam.