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Doug Fleenor DMX512 Inline Optical Isolator - 5 Pin

Part Number: Doug Fleenor DMXOPTO


Doug Fleenor DMX512 Inline Optical Isolator - 5 Pin

The DMX512 Inline Optical Isolator is designed to plug directly into the back of most DMX lighting consoles. Its primary purpose is 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. The isolator also eliminates ground loops and provides high drive current for long control runs.

The input circuit of this inline isolator is passive and will not work with some DMX512 output circuits, specifically "slew-rate limited" circuits. Slew-rate limited applications require the active input circuit of our DMX Isolation Amplifier


  • The input circuit does not meet DMX512 specifications.
  • The output circuit meets or exceeds DMX512 requirements.
  • Input circuit: A 6N137 Optical Coupler with series 560 Ohm resistor between pins 2 and 3. Pin 1 is not connected.
  • Input signal: 3 volts minimum, 12 volts maximum
  • Output circuit: EIA-485 driver
  • Connectors: Switchcraft 5 pin "XLR" style
  • Isolation: 2500 volt optical coupler
  • Power input: 100 - 240Volts, 50/60 Hertz, 5 Watts
  • Color: Silver connector shell with white plastic label
  • Weight: 0.8 pounds

  • Condition: New

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