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Mildly OT: DMX cables #2950725
09/30/18 01:13 PM
09/30/18 01:13 PM
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picker Offline OP
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Just managed to pick up some LED lights that will work with a DMX controller. They have XLR ins & outs on the back. Can regular mic cables be used with them, or is there a difference in the cables you have to use?


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Re: Mildly OT: DMX cables [Re: picker] #2950728
09/30/18 01:19 PM
09/30/18 01:19 PM
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Scott Fraser Offline
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I should know that one, having spent my adult life married to a lighting designer, but I don't. But, I thought DMX used 4 pin XLRs, am I mistaken on that? I'm spending the next week on a big ballet production in San Francisco, so I'll check with the company's LD.


Scott Fraser
Re: Mildly OT: DMX cables [Re: Scott Fraser] #2950757
09/30/18 07:20 PM
09/30/18 07:20 PM
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Looks like three pin to me.


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Re: Mildly OT: DMX cables [Re: picker] #2951439
10/04/18 11:11 PM
10/04/18 11:11 PM
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Scott Fraser Offline
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They explained that pro theater systems use 4 & 5 pin XLR connectors (but only wired to 3 of those pins) while a 3 pin DMX is probably more of a DJ/club kind of system, & they said theoretically it should be a low capacitance RF shielded high bandwidth cable, i.e. suitable for AES digital audio, or other video bandwidth type signals, BUT everybody substitutes mic cables & it works, but isn't spec'ed for that kind of cable. So, I'd go ahead & use your existing mic cables until you experience a problem, probably never. I'm sure a dedicated DMX cable is more expensive.


Scott Fraser
Re: Mildly OT: DMX cables [Re: Scott Fraser] #2951475
10/05/18 03:33 AM
10/05/18 03:33 AM
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Scott Fraser Offline
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Having said that, & noticing this theatre (Yerba Buena Center) is using 4 pin XLRs in their lighting rig, after the show tonight I saw a small box backstage labeled as a DMX converter, with a 3 pin XLR input & a 3 pin XLR output on it. Just to confuse things.


Scott Fraser
Re: Mildly OT: DMX cables [Re: Scott Fraser] #2951756
10/06/18 06:15 PM
10/06/18 06:15 PM
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Re: Mildly OT: DMX cables [Re: d / halfnote] #2951777
10/06/18 09:43 PM
10/06/18 09:43 PM
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The guy at Sweetwater told me mic & DMX cables are different, and not interchangeable. I picked some up used, and it took some fiddling around with programming settings to get my controller to see the fixtures, but I finally got it to work. It only seems to work in 3 channel mode, and the lights have a 7 channel mode, so it would seem there is more to learn about them. Thanx for all the asking around y'all did.


Always remember that you’re unique. Just like everyone else.




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