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Author Topic: change a 4 pin DMX connector to a 3 pin DMX connector  (Read 332 times)

Jesus Ortiz

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change a 4 pin DMX connector to a 3 pin DMX connector
« on: May 10, 2019, 05:47:31 pm »

I just bought 12 RGB luminaires for the external part of a building, but the came with a 4 pin DMX connector and all the DMX512 I found accept a 3 Pin Dmx connector, I need to change the connector but I didn't know what cable  to eliminate or how to connect it, need your advise
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Mac Kerr

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« Reply #1 on: May 10, 2019, 06:07:38 pm »

need your advise

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John Fruits

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Re: change a 4 pin DMX connector to a 3 pin DMX connector
« Reply #2 on: May 11, 2019, 05:20:51 am »

What brand of fixtures and model?  Generally in DMX controlled lights with the 4 pin XLR it is using what is known as color scroller cable.  It uses a cable with a shielded twisted pair for the DMX signal plus a twisted pair for power.  One example is the City Theatrical unit for Color Kinetics.
http://www.citytheatrical.com/products/750-trx-pds
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Jeff Lelko

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Re: change a 4 pin DMX connector to a 3 pin DMX connector
« Reply #3 on: May 11, 2019, 03:02:27 pm »

...but they came with a 4 pin DMX connector...

Before saying that you need to adapt these to 3 pin you need to determine why they use 4 pin.  As John already mentioned, 4 pin usually involves power transmission and isn't interchangeable like 3 pin vs 5 pin DMX usually is.  You almost always need to use driver box that merges a power supply and any incoming DMX command signal.
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ProSoundWeb Community

Re: change a 4 pin DMX connector to a 3 pin DMX connector
« Reply #3 on: May 11, 2019, 03:02:27 pm »


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