As people add more DMX controllers to their displays, the subject of DMX splitters comes up again and again. There's quite a few DIY DMX splitters scattered around the Internet, but a lot of them have issues such as: No pre-etched PCB available Incorrect receiver implementation Poor general design 240V (or 110V) required No RJ45 connectors If there is interest, I can design a DMX splitter that overcomes the above issues. It could be a simpler non-isolated design, an isolated input design, or a fully isolated design. A wiki page outlining the different types of DMX splitters can be found here. Isolation adds a fair bit of cost to a DMX splitter, so it may be that two designs (non-isolated and isolated) are done. Anyway, over to you for discussion.