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DMX Vs XLR For Controlling Lights?

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  • DMX Vs XLR For Controlling Lights?

    Okay, I know the two cable types look the same, but I was wondering if I could (or should) use standard XLR cables to control the new stage lights I have coming. I know little or nothing about this so I have a few questions, including this as well as do I need to invest in the same (or equivalent) nice quality DMX cables as I am for my sound system? Obviously I bought a ton of nice cables from PyleAudio and I need to buy more, and I wasn't sure if I should  be spending a lot of money on nice DMX cables because I don't know if lights need the same good quality as cables used for sound.

    Thanks!


  • #2

    Actually DMX cables should be of better quality than audio cables - besides the usual considerations they have to be of controlled impedance to be "right". You should also use a DMX terminator at the end of the "chain".


    "We Have Met the Enemy and He is Us" - Walt Kelly​

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    • ChiroVette
      ChiroVette commented
      Editing a comment

      RoadRanger wrote:

      Actually DMX cables should be of better quality than audio cables - besides the usual considerations they have to be of controlled impedance to be "right". You should also use a DMX terminator at the end of the "chain".


      What cables do you recommend? Or should I just call AudioPyle and talk to Mark?


    • RoadRanger
      RoadRanger commented
      Editing a comment

      Oh, and "real" DMX cables are five pin. The three pin "standard" is a bastard low end thing that seems to have dominated unfortunately. Lots of fun if you accidently feed DMX into one of your mic inputs .


  • #3

    Here are links to the USITT DMX512 FAQ  and the paper they reference

    http://www.usitt.org/content.asp?contentid=373

    http://tsp.plasa.org/tsp/working_groups/CP/DMXoverCat5.htm


    A couple of excerpts

    What cable can be used?
    The original and 1990 versions of the standard specify 120 ohm or 100 ohm 1

    <div class="signaturecontainer">Frank<br />
    <a href="http://lbpinc.com/DI.html" target="_blank">http://lbpinc.com/DI.html</a></div>

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