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DMX 101 manual Elation Professional, Tel 866-245-6726Fax
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DMX 101
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Specification
While 4000 feet may be specified by the standard, most manufacturers recommend DMX runs of no more than 1000 feet 300 feet between devices before using a repeater to regenerate the signal. Each device should have input and output connectors, but these are usually wired together. No re-transmissionor amplification is performed
Signal
Many DMX devices such as dimmers and intelligent fixtures are capable of receiving several control channels at once. If a Dimmer has four channels capable of controlling four Light Fixtures , it must know which four control channels to receive. This is accomplished by setting a ‘base address’, or the DMX address for the first Light Fixture channel 005, in this example. The remaining Light Fixtures will be controlled by the next three sequential control channels. The DMX Decoder knows it needs only these four control channels, and will ignore the rest
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Elation Professional ®
A Division of the American DJ Group of Companies
6122 S. Eastern Avenue Los Angeles, CA 90040 USA
Tel:
866-245-6726
Fax:
323-832-9142
Web:
www.elationlighting.com
E-mail:
info@elationlighting.com
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Contents
DMX A DMX 512 HANDBOOK
7+92/87,21&206&+$1
Handbook Revision May
DMX 101 A DMX 512 Handbook
Elation Professional
Table of Contents
1. Introduction to DMX
2. Industry Standards
2.1 USITT
2.2 ESTA
2.3 ANSI
2.4 EIA/TIA
2.5 References
3. Theory of Operation
3.1 The Cable TV Analogy
Now imagine a simple DMX system Figure 2, where
Many DMX devices such as dimmers and intelligent fixtures are capable of receiving several control channels at once. If a Dimmer has four channels capable of controlling four Light Fixtures Figure 3, it must know which four control channels to receive. This is accomplished by setting a ‘base address’, or the DMX address for the first Light Fixture channel 005, in this example. The remaining Light Fixtures will be controlled by the next three sequential control channels. The DMX Decoder knows it needs only these four control channels, and will ignore the rest
3.2 DMX Communications
While 4000 feet may be specified by the standard, most manufacturers recommend DMX runs of no more than 1000 feet 300 feet between devices before using a repeater to regenerate the signal. Each device should have input and output connectors, but these are usually wired together. No re-transmissionor amplification is performed
3.3 Summary
4. Protocol Specifications
4.1 Connectors
Wire
Signal
4.2 Cabling
4.3 Data
Element
Description
State
5. Sample Applications
5.1 Dimmer Control
5.2 Intelligent Fixture Control
DMX 101 A DMX 512 Handbook
Elation Professional
5.3 Dimmer & Intelligent Fixture Control
5.4 Distributed Control
DMX 101 A DMX 512 Handbook
Elation Professional
Page
Elation Professional
A Division of the American DJ Group of Companies
6122 S. Eastern Avenue Los Angeles, CA 90040 USA
Tel 866-245-6726Fax
