Don't try and plug this dimmer pack into a DMX console. Microplex is a powered signal and can fry the DMX drive of the console.
You will need a Microplex to DMX converter box to use it with a DMX console as geek3 said.
Your best bet, however, might be to look into different dimmer packs. Microplex is back from the time before DMX was standard in which everyone had their own control format. So instead of wasting money on a converter box for a dead end format, I would invest into new dimmer packs. This way you are on the same standard as everyone else and equipment is much more interchangeable then.
Other then that, welcome to the forums joeandkenz.