DMX, cable...if in fact it is true DMX, should be 110 ohm which is the same spec for AES cable. And can be used with no issue. You should NOT use standard mic cable for DMX. It can be used, and often is, but on longer runs it can cause among other things an issue with the DMX signal that can result in bounce back, and can even cause issues with termination on DMX runs. Most Pro DMX gear uses 5 pin cable, will have both 5 & 3 pin hookups. Prosumer gear has three pin. the DMX data stream only requires three out of the five wires to carry the signal.