There heaps of info and wiring diagrams on the eqmod site, should be easy as pie if you have a crimper and cat5 end to add to the end of your eqdirect cable
you can also just get a heq5/eq5 cable from bintel if you wanna play it safe
You could also just get a db9 and stick a cat5 on the end to save cutting up your eq6 eqdirect cable, also if its a old network cbale you only need to buy a db9 which will cost you $4