Just cause I'm a dmx cable Nazi. The braid is properly refered to as a drain, as it drains away the static build up in the exterior of the cable "sheilding" the twisted pairs on the interior. The foil shield is a sheild and should not be connected, in any way, to any of the connectors.
Dave fixed that. You can now search on DMX. The thread in question has been active within the past week or two and so should be towards the top of the list.
It's funny you should mention Martin. Technically speaking, Martin, and I love their stuff, worked for a company that had some of thier first gear in America, doesn't use DMX. Ok now let out your breath. Martins insistance on using three pin XLR instead of the specified 5 pin xlr and their insistance on sending spurious data returns on the third pin actually mean that thier fixtures don't comply with the international standards that govern DMX. I'll stick by my original statement. You could wire your home ethernet with zip cord, but why would you ?I KNOw this is bound to cause quite a stir, but if you look at Martin's gear for instance they say you can use mic cable but insist on the termination resistor
I think you will find that using the 120ohm resistor terminator cleans up a lot of the problems with mic cable, and that using "proper" dmx cable, reduces the need for the terminator
Now that more and more people are going cat5 it is getting to be less of an issue
The new 250 series all has 3 and 5 pin connections. The 700 series probably does, too. I don't know about data returns on pin 3, but they do use 5 pin connections.
OK. My first 2 thots would be bad data getting there (some hidden thing emanating from your desk) or bad cabling somewhere.Ah, I still haven't had time to go up and check out the terminator.
As far as this above post goes, there is still dmx being detected. It is like between scenes when I don't have them set to any color, but still connected into the dmx chain and power still running to them. It isn't the sound active thing on the lights. It's more of a quick flicker every so often.