4. DMX-512 CONTROL CONNECTIONS
This fixture complies with international USITT DMX standards and can be used with either a 3 pin
or 5 pin DMX connector. Plug in the provided 3 pin XLR cable to the female 3-pin XLR output of
your controller and the other side to the male 3-pin XLR input of the MICROH ASTEROID RGB.
To connect the units to DMX, you must daisy chain the fixtures together as referred in the
diagram below. Always end your DMX-512 connection with a DMX terminator.
For installations where the DMX cable has to run a long distance, or is in an electrically noisy
environment, it is recommended to use a DMX terminator. This helps in preventing corruption of
the digital control signal by electrical noise. The DMX terminator is simply an XLR plug with a 120
Ω resistor connected between pins 2 and 3,which is then plugged into the output XLR socket of
the last fixture in the chain. Please see illustrations below.
1
2
3
PIN 3
PIN 2
120
Ω
5
