Elation Professional • Los Angeles, CA. Error! Reference source not found. / Error! Reference source not found.) 15
5. UNDERSTANDING DMX
DMX-512: DMX is short for Digital Multiplex. This is a universal protocol used by
lighting and controller manufactures as a form of communication between intelligent
fixtures and controllers. DMX allows all makes and models of different manufactures
to be linked together and operate from a single controller. This is possible as long as
all the fixtures and the controller are DMX compliant. A DMX controller sends the
DMX data instructions to a fixture allowing the user to control the different aspects of
an intelligent light. DMX data is sent out as serial data that travels from fixture to
fixture via data “IN” and “OUT” XLR terminals located on the fixtures (most controllers
will only have output jacks).
DMX Linking: To ensure proper DMX data transmission, always use proper DMX
cables and a terminator, never use microphone cables. When using several DMX
fixtures try to use the shortest cable path possible. Never split a DMX line with a “Y”
style connector. The order in which the 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 the DMX chain, at the beginning, at the end, or anywhere
in the middle. The DMX controller knows to send data assigned to address 1 to that
fixture no matter where it is located in the DMX chain. The Impression 120RZ™ can
be controlled via DMX-512 protocol. The Impression 120RZ™ is a fixture that can
operate in three different DMX modes; 11, 14, or 15 channels (see page 20 for the
different DMX operations). The DMX address is set electronically using the controls
on the LED menu.
Data Cable (DMX Cable) Requirements (For DMX and Master/Slave Operation):
Your fixture and your DMX controller require a standard 3-pin XLR connector for data
input and data output. If you are making your own cables, be sure to use two
conductor shielded digital DMX cable rated at 120 ohms, this cable is designed for
DMX transmission and may be purchased from your Elation dealer or at most
professional lighting retailers. Your cables should be made with a male and female
XLR connector on either end of the cable. Also, remember that a DMX line must be
daisy chained and cannot be split, unless using an approved DMX splitter such as the
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