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Doug Fleenor 321E DMX Combine Unit - 3 Input

Doug Fleenor 321E DMX Combine Unit - 3 Input

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Doug Fleenor 321E DMX Combine Unit - 3 Input

Want to pile-on two DMX512 sources? You can't just tie the outputs together like you can with 0 to 10 volt analog control signals. Combining two DMX512 sources requires a computer, like the one in the model 221E DMX Combine Unit.

The combiner introduces the minimum delay possible with DMX512, less than 0.02 seconds. Combine units are available in up to six input configurations as standard products. For more than 6 inputs, multiple units can be linked together. These combiners feature terminated opto-isolated inputs which are also protected from AC line crosses and transients. Each input has an LED signal indicator. These combiners can also be used to convert to, or from, Colortran's CMX protocol (as used in D-192 series dimmers)


  • Baud rate: 250 Kilobaud
  • Input circuit: EIA-485 receiver with 120 ohm termination between +data and -data
  • Input connectors:
    • Gold plated 5 pin male (Neutrik D1 series)
    • Terminal Block Optional
  • Output circuit: EIA-485 driver
  • Output connector:
    • Gold plated 5 pin female (Neutrik D1 series)
    • Terminal Block Optional
  • Input to output delay: 1/100 second average 1/50 second maximum
  • Power input: 100 - 120 volts, 50/60 hertz, 12 watts (208 - 240 volt optional)
  • Power cord: Attached 5' 18/3 cord with parallel blade w/ ground plug.
  • Color: Silver hammertone with black front and back panels.
  • Size (D x H x W): 11.25 x 1.74 x 8.25"
  • Weight: 4.9 lbs
  • Condition: New

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