Blizzard Enclosure User Manual
page 39
DEC3 normally ships from the factory with power terminal links inserted for a common electrical
supply to feed the enclosure and the projector/fixture inside it.
If you prefer to feed the enclosure and projector separately, remove the terminal links as indicated
before connecting to mains power. Use a small flat-bladed screwdriver to remove the link, snap off
the unneeded section and replace carefully. When splitting the feeders, we strongly recommend
feeding both supplies from the same phase and at the same supply voltage.
3.1 DMX Connections
DMX refers to USITT DMX512, a commonly used control protocol in the entertainment industry,
running over RS485. Consult USITT DMX installation guidelines when laying out a system, or consult
a qualified DMX system integrator.
Note that DMX is optional – in many applications it is not required, and need not be connected. For
more information, see DEC3 Operating Modes in the next section.
DMX IN
– Connect incoming DMX to the 2-part 3-pin terminal on the DEC3 control circuit
board so labeled.
Pinout: (1) Ground, (2) Data –, (3) Data +.
DMX THRU
– there are two DMX pass-through terminals – one for a fixture inside the
enclosure, the other to run to the next DMX device in the network.
Pinout: (1) Ground, (2) Data –, (3) Data +.
