SO this should be a quick and easy question. My school is doing our fall musical in our old theatre with dimmers that are a good 20+years old. They run on some form of DMX, I'm pretty sure it isn't DMX-512. Our light board that goes with it is in pretty bad shape. Is it possible to use a DMX-512 compatible board on an older version of DMX (I'm pretty sure you can't but it is worth asking).