Pardon my elementary question: can I use a 3-pin Y cable to split DMX signal coming from a controller?
Doug Fleenor says no.http://www.dfd.com/primer.htmlIt's also sort of like using mic cables, it might work......until it doesn't.
It will work better than people are suggesting, but I wouldn't plan to work that way. If doing this keep your legs short.For me, this is in my emergency workarounds bag of ideas.Not the "right thing", but not nearly as dodgey as the mythology suggests.DMX runs on RS485, and anything you can get away with on RS485 will work for DMX.
I have installed over 30 of these over the past 5 years, and have not had a single issue:http://www.usledsupply.com/shop/dmx-splitter-1-8.html
Doug Fleenor says "people spend thousands of dollars flying me all around the world to tell them: use real DMX cables and don't daisy-chain more than 24 fixtures - use a DMX splitter/isolator."So to parse Mr. DMX's statement:NO. A BIG, FAT NO.
Inside many (most?) fixtures the "DMX daisy chain" wiring is implemented as a y-split...
Inside many (most?) fixtures the "DMX daisy chain" wiring is implemented as a y-split. The two XLR connectors are wired together, and a single set of wires runs to the controller board.
Yes they are wired that way, the difference is that the "Y" inside the instrument has just a short leg to the chip that reads the DMX off the bus. That short leg to to the chip does not create reflections that are a problem. That is very different from putting a "Y" cable in a random spot with instruments and long cables. In that case you end up with reflections that may or may not cause problems.
I use this as well, going on 4 years now. At $35 it's a no-brainer
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