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Author Topic: Y cord at DMX board  (Read 1363 times)

Patrick Campbell

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Y cord at DMX board
« on: July 03, 2018, 08:35:27 am »

Has anyone used a y cord to split each side of stage for communication ?

Then us e a terminator on each sides end ??

A DMX Y cord ?

Thanks,

Patrick
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TJ (Tom) Cornish

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Re: Y cord at DMX board
« Reply #1 on: July 03, 2018, 08:59:02 am »

Has anyone used a y cord to split each side of stage for communication ?

Then us e a terminator on each sides end ??

A DMX Y cord ?

Thanks,

Patrick
I'm sure someone has used that, but it's the wrong idea.  You need an optically isolated DMX splitter like this:

https://www.sweetwater.com/store/detail/DataStream4--chauvet-dj-data-stream-4-4-port-dmx-splitter
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Erik Jerde

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Re: Y cord at DMX board
« Reply #2 on: July 03, 2018, 10:10:07 am »

Has anyone used a y cord to split each side of stage for communication ?

Then us e a terminator on each sides end ??

A DMX Y cord ?

Thanks,

Patrick

It might work.  It also might produce intermittent gremlins.  I wouldn't risk anything important to it.  Get a proper DMX splitter.
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Jerome Malsack

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Re: Y cord at DMX board
« Reply #3 on: July 03, 2018, 10:46:00 am »

The optical isolation will also help in trouble shooting when a segment does not work correctly.  It prevents problems on the other segments.
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Dave Garoutte

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Re: Y cord at DMX board
« Reply #4 on: July 03, 2018, 12:23:46 pm »

You can also split with a wireless Dfi type device.
If I'm doing two lighting tripods, I'll often put a receiver on each and I won't have to run cables to them.
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Steve Garris

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Re: Y cord at DMX board
« Reply #5 on: July 03, 2018, 01:38:41 pm »

You can also split with a wireless Dfi type device.
If I'm doing two lighting tripods, I'll often put a receiver on each and I won't have to run cables to them.

This is what I use. Those Donner units work flawlessly.
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duane massey

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Re: Y cord at DMX board
« Reply #6 on: July 03, 2018, 10:19:05 pm »

Quick answer: no, don't do it.
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Duane Massey
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Lyle Williams

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Re: Y cord at DMX board
« Reply #7 on: July 04, 2018, 05:25:33 pm »

Don't plan on doing it.  If for some reason outside your control your doing-things-properly plan is ruined and the show is going to fail, sure, go for it.

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Mark Cadwallader

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Re: Y cord at DMX board
« Reply #8 on: July 04, 2018, 06:07:33 pm »

With a data (DMX) cable that's long enough to run around the upstage side of the stage, you can link the SL and SR upstage lights and not need to split the signal. (Assuming you don't otherwise link too many lights on a single run. 32 instruments is the max per DMX protocol, IIRC.)

Optical splitters can be had for about 100 USD.
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Steve M Smith

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Re: Y cord at DMX board
« Reply #9 on: July 05, 2018, 03:04:30 am »

I don't see why a Y lead would be a problem.  The in and out sockets are parallel connected. Using a Y cable isn't any different.


Steve.
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