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ADJ Products, LLC - www.adj.com - Focus Spot One User Manual Page 11
Focus Spot One DMX Set Up
Power Supply: The ADJ Focus Spot One contains an automatic voltage 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 by most lighting and
controller manufacturers 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 locat-
ed 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. Therefore, the first
fixture controlled by the controller could be the last fixture in the chain. 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: The Focus Spot One can be controlled via DMX-512 pro-
tocol. The Focus Spot One has 2 DMX channel modes; 15 channel mode & 17 channel mode. The
DMX address is set electronically using the controls on the front panel of the unit. Your unit and your
DMX controller require an approved DMX-512 110 Ohm Data cable 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 professional
sound and 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.