Custom Artemis bridge dmx setup

I apologize for the long post. friend and I work at a boy scout activity center, which includes a custom space bridge that we have configured to run Artemis. We have a full dmx system with over 20 fixtures and we'd like to hook up Artemis to the DMX. I know what I have to do hardware wise but I haven't a clue on how to set up the software. I'll post pictures soon.