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Thread: DMX over 230V or 12/24VDC powerline

  1. #1
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    Default DMX over 230V or 12/24VDC powerline

    Hi, I'm looking for information on this circuit:

    512ch DMX transmitter and DMX receiver to communicate with 2 wires. RGB is for a light for the pool (to use the two current cables PAR56)

    powerline.jpg

    Regards,
    Jose.
    Last edited by investigacion; 05-22-2011 at 08:38 AM.

  2. #2
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    Default Re: DMX over 230V or 12/24VDC powerline

    Interesting - it's obviously some form of powerline communication, but there is no documentation whatsoever. Might want to look into the X10 protocol for some examples. I have seen very few examples of DIY powerline comms though.

  3. #3
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    Default Re: DMX over 230V or 12/24VDC powerline

    It's not DMX if it's over AC, but it does seem like an interesting protocol converter.
    Last edited by DynamoBen; 05-24-2011 at 01:19 PM.
    DMX, RDM, ArtNet, sACN, and RDMnet...the future of DIY Christmas.
    Designer of the PropController an open source single-board hardware platform designed for lighting and prop control.

  4. #4
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    Default Re: DMX over 230V or 12/24VDC powerline

    Comercial product
    LinkSprite DMX512 High Speed Powerline Communication Module
    http://www.linksprite.com/product/sh...?id=70&lang=en

  5. #5
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    Default Re: DMX over 230V or 12/24VDC powerline

    This is close to what David Petryk did. He is the one that designed the PLC stuff that LOR "borrowed". He has an entirely completed controller system that has LOR and DMX firmware. It was discussed here:

    http://doityourselfchristmas.com/for...er-power-lines

    Not sure if this is still working or not: http://www.youtube.com/watch?v=TAh1gg0u8Xk

  6. #6
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    Default Re: DMX over 230V or 12/24VDC powerline

    It is quite easy to do 155mbit/s and 50watts of DC power of a single cable.
    Most modern Microwave radios run DC and two IF's on the Coax between the Indoor unit (IDU) and the Outdoor Unit (ODU).

    But it is not cost effective. A cable interface is pretty cheap to do and modulating a DMX Baseband to mix up to a higher frequency can be done also. But I doubt we want to start running coax cables from the computer to our controllers
    Matt

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