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[len woelfel]

Ron Hebbard wrote on Sat, 05 January 2008 03:24

Blair Willis wrote on Sat, 05 January 2008 03:53 To further complicate the question: Would there be any problem using opposing signal directions?  That is, could one twisted pair be used for an upstream signal, the other for a downstream signal? Thanks for your input (and output), Blair Hello Blair; I believe this has already been done by some of the higher end manufacturers with one pair carrying control info from a console to it's dimmers, foggers, scrollers, 'wigglies', et al and the secondary pair carrying report info back to the console for things such as load changes, fan failures, over-temp, etcetera. Toodleoo! Ron Hebbard

Yes, the second pair was originally designed to carry fixture data back to the console.  Basically a feedback channel as you guessed.  

[Ron Hebbard]

len woelfel wrote on Sun, 06 January 2008 16:16

Ron Hebbard wrote on Sat, 05 January 2008 03:24 Blair Willis wrote on Sat, 05 January 2008 03:53 To further complicate the question: Would there be any problem using opposing signal directions?  That is, could one twisted pair be used for an upstream signal, the other for a downstream signal? Thanks for your input (and output), Blair Hello Blair; I believe this has already been done by some of the higher end manufacturers with one pair carrying control info from a console to it's dimmers, foggers, scrollers, 'wigglies', et al and the secondary pair carrying report info back to the console for things such as load changes, fan failures, over-temp, etcetera. Toodleoo! Ron Hebbard Yes, the second pair was originally designed to carry fixture data back to the console.  Basically a feedback channel as you guessed.

Hello Len and happy new year!

I wrote that "I believed", I don't recall indicating any guessing on my part. ;^)

Toodleoo!
Ron Hebbard