Kathy Quinlan's DMX 512 Home Page.
DMX
512
Kathy
Quinlan's DMX 512 page.
DMX
512 is the entertainment industry protocol for controlling lighting. DMX 512
can control Dimmers, Scanning lights, Strobes, Smoke machines etc. The uses
for DMX 512 are only limited by your imagination. DMX 512 works by sending up
to 512 channels of 8 bit digital data, this means each channel can have a value
between 0 and 255, which represents 0 to 100%. Each piece of equipment can use
as many channels as it needs.
DMX
512 can be generated in many different ways, from a PC, A digital lighting desk,
or an adopter for the older analog lighting desks.
Each
DMX 512 segment can have up to 32 devices connected, if more than 32 devices
are needed then you will need to use an opto isolated line driver, basically
this unit receives the data from the lighting desk as one of the 32 devices,
and buffers, isolates and retransmits all 512 channels out. These Isolator boxes
can have any number of isolate outputs, each being able to drive a further 32
devices.
DMX
512 might at first sound a bit daunting, but rest assured once you get into
the swing of things, it is very easy to play with. We can interface just about
anything at a component level, a small list includes :
How
to receive DMX 512
Stepper Motors
Servo
Motors
Triac's
for ON / OFF switching or Dimming
Relays
for ON / OFF switching
Specifications
of DMX 512
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