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DMX: Difference between revisions
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DMX is a digital lighting control protocol, in which instead of 1 core for each channel used & a common gorund (like on the [[Technical:Lighting Desk|Lighting Desk]]), 512 channels of control are transmitted down 3 wires: Data+, Data-, Gnd, with ground usually being the sheild or braid, Data+ & Data- are a twisted pair. | DMX is a digital lighting control protocol, in which instead of 1 core for each channel used & a common gorund (like on the [[Technical:Lighting Desk|Lighting Desk]]), 512 channels of control are transmitted down 3 wires: Data+, Data-, Gnd, with ground usually being the sheild or braid, Data+ & Data- are a twisted pair. | ||
==Current supported devices== | ==Current supported devices== | ||
* | |||
* | If you're taking out equipment with different pin numbers, remember to take some conversion cables. | ||
* | |||
=== 3-pin === | |||
*[[Dimmers#Eurolite DPX-405|Eurolite DPX-405]] | |||
*[[Lanta Orion Trico 7|Trico's]] | |||
=== 5-pin === | |||
*[[Strand 200+]] | |||
*[[Dimmers#Strand 6pack|Strand 6pack]] | |||
==Infrastructure== | ==Infrastructure== | ||
YSTV runs 2 lines (one each way)down a single Cat5e cable, from the control room's Master patch panel, to the LX patch panel in the studio. | YSTV runs 2 lines (one each way)down a single Cat5e cable, from the control room's Master patch panel, to the LX patch panel in the studio. Currently unused. | ||
==Connections== | ==Connections== | ||
These are on 3 or 5 pin XLR. | These are on 3 or 5 pin XLR. | ||
'''DO NOT plug dmx into any sound gear | '''DO NOT plug dmx into any sound gear - something will be unhappy!''' | ||
==Technical== | ==Technical== | ||
* DMX requires a cable impedance of 120ohms. | * DMX requires a cable impedance of 120ohms. | ||
** try not to use mic cable | ** try not to use mic cable, however it will suffice for short runs (<40m) | ||
* 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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==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 may hear the DMX data - The sync pulses manifest as an intermittent clicks... | *Don't run DMX right next to audio cables of any kind unless completely unavoidable, even if everything is balanced. You may hear the DMX data - The sync pulses manifest as an intermittent clicks... | ||
[[Category:Lighting]] | |||