ADJ Products, LLC - www.adj.com - Mega Bar RGBA User Manual Page 5
Mega Bar RGBA Set Up
Power Supply: The ADJ Mega Bar RGBA contains a automatic volt- age switch, which
will auto sense the voltage when it is plugged into the power source. With this switch
there is no need to worry about the correct power voltage, this unit can be plugged in
anywhere.
DMX-512: DMX is short for Digital Multiplex. This is a universal protocol used as a form
of communication between intelligent fixtures and controllers. A DMX controller sends
DMX data instructions from the controller to the fixture. DMX data is sent as serial data
that travels from fixture to fixture via the DATA “IN” and DATA “OUT” XLR terminals
located on all DMX fixtures (most controllers only have a DATA “OUT” terminal).
DMX Linking: DMX is a language allowing all makes and models of different
manufactures to be linked together and operate from a single controller, as long as all
fixtures and the controller are DMX compliant. To ensure proper DMX data
transmission, when using several DMX fixtures try to use the shortest cable path
possible. The order in which fixtures are connected in a DMX line does not influence the
DMX addressing. For example; a fixture assigned a DMX address of 1 may be placed
anywhere in a DMX line, at the beginning, at the end, or anywhere in the middle. When
a fixture is assigned a DMX address of 1, the DMX controller knows to send DATA
assigned to address 1 to that unit, no matter where it is located in the DMX chain.
Data Cable (DMX Cable) Requirements (For DMX Operation):
The Mega Bar RGBA can be controlled via DMX-512 protocol. The Mega Bar RGBA has
7 DMX channel modes, please see pages 9-10 for the different modes. The DMX address
is set on the back panel of the Mega Bar RGBA. Your
unit and your DMX controller require a standard 3-pin
XLR connector for data input and data output (Figure
1). We recommend Accu-Cable DMX cables. If you
are making your own cables, be sure to use standard
110-120 Ohm shielded cable (This cable may be
purchased at almost all pro lighting stores). Your
cables should be made with a male and female XLR
connector on either end of the cable. Also remember
that DMX cable must be daisy chained and cannot be
split.
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