DMX: Difference between revisions

118 bytes added ,  4 July 2012
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==Technical==
==Technical==
* DMX requires a cable impedance of 120ohms.
* DMX requires a cable impedance of 120ohms.
** dont use mic cable!
** try not to use mic cable!
* Equipment is "daisy chained" together, using each device's input and an output ports.
* Equipment is "daisy chained" together, using each device's input and an output ports.
* Data+ and Data- must be a twisted pair.
* Data+ and Data- must be a twisted pair.
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** 10outoften
** 10outoften
** Usedlighting / stagelighting (lighting Partners Ltd)
** Usedlighting / stagelighting (lighting Partners Ltd)
Cat5e:
* Impedance of 110 ohms (approx) makes it suitable.
* Use any twister pair, and pick another as ground.


==Useful Notes==
==Useful Notes==
*Don't run DMX right next to audio cables of any kind unless completely unavoidable, even if everything is balanced. You will hear the DMX data - The sync pulses manifest as an intermittent tone & noise.
*Don't run DMX right next to audio cables of any kind unless completely unavoidable, even if everything is balanced. You will hear the DMX data - The sync pulses manifest as an intermittent tone & noise.