Does any one know the pin out for the cable to go between a Northern Telecom RAD and a PC. It is a DB9F to DB9M.

Looking for 2-3, 3-2, 7-7 2+8-6 etc

2-3 3-2 5-5 6-4 4-6

I don't know anything about making cables. Is this cable available for purchase somewhere, or can I alter a cat 5 cable and attach it to a DB9/RJ45 connector?