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Splitting a DMX line

Discussion in 'Lighting and Electrics' started by Brenton, May 22, 2009.

  1. Brenton

    Brenton Member

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    Is there any major problems that can come up with splitting a DMX line and is the signal strength effected?
     
  2. DimmerDotCom

    DimmerDotCom Active Member

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    Not if you use an opto splitter. Electronically splitting it by making a y or t cable is non-adviseable: 1/2 impedance, reflections, etc. - remember it is RS485.

    Maurice Garcia
    dimmer.com Home Page
     
  3. zac850

    zac850 Well-Known Member

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    Use one of these

    Don't just make a cable to do it. While you can trick it into working, I would never recommend it for anything show critical (like, say, your lighting control system).
     
  4. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Provided you use an opto-splitter, and not a Y-cable or two-fer, no problems at all.

    From DFD's DMX512 Primer:
     

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