Doug Fleenor Design is a manufacturer of DMX512 distribution and interface equipment for the entertainment industry. A long and growing list of standard products is supplemented by a custom design service which provides solutions to unique problems. Started in 1990 by principal engineer Doug Fleenor, the company has established itself as a leader in DMX512 technology.
Doug Fleenor Design products are available from theatrical lighting distributors across the globe. For a dealer near you, please call or e-mail.
Doug Fleenor Design products are available from theatrical lighting distributors across the globe. For a dealer near you, please call or e-mail.
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The DMX512 Inline Optical Isolator was designed to plug directly into the back of most DMX lighting consoles. Its primary purpose was to protect the console from hazardous voltages which may travel on the control cable. Hazardous voltages may be caused by dimmer failures, electrical storms, and cross wiring non-DMX equipment (foggers, intercoms, arc welders) into lighting control outlets.
For the receiving end of long control runs we recommend the DMX512 Isolation Amplifier [121]. It contains separate input and output power supplies. This allows the input circuitry to receive signals as low as 0.2 volts. These are optionally available in any number of configurations for systems with more than one DMX512 universe.
Ethernet protocols for control of a relay. The relay can switch up to a 20 amp line voltage load and is built with a 30 amp dry contact air-gap relay for robust performance. The unit is provided with two 18 12/3 SJ pigtails for line in and switched line out. Supplied with 15 amp parallel blade connectors as standard, the unit may be wired with higher rating connectors by special order or may be rewired by the customer.
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