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Doug Fleenor Designs DMX24DIM Dimmer
24 Channel DMX


The DMX24DIM is a twenty-four output dimmer designed for high efficacy loads, low idle power, and minimal losses.
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Doug Fleenor Designs DMX24DIM Dimmer
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The DMX24DIM is a twenty-four output dimmer designed for high efficacy loads, low idle power, and minimal losses. Typical loads include Christmas light strings (LED and incandescent), and low power lamps such as LED, neon, compact fluorescent, electronic and magnetic low voltage, halogen and incandescent. Common applications include Christmas tree lighting, cue lights, signs, marquees, and practicals.

The dimmer is a single-space rack mount unit with removable rack ears. Airflow is front to side. Half inch holes are provided for half couplers or C clamps. The enclosure features a carry handle and a 3/8 inch safety cable slot.

The unit is currently undergoing NRTL (UL, ETL, CSA) testing.

Doug Fleenor Designs DMX24DIM Dimmer Specifications:

  • Input circuit: Protected EIA-485 receiver(LT1785); transient protected to 15 KV, continuous to 60 V
  • Input signal: 0.2 volts minimum, 12 volts maximum,DMX512, DMX512/1990, or DMX512-A.
  • Input connector: Gold plated 5 pin male XLR (NeutrikD-1 series) 3 pin XLR optional.
  • Input pass through: Gold plated 5 pin female XLR(Neutrik D-1 series). All five pins are passed through.
  • Termination: None. Unused pass throughconnectors must be externally terminated.
  • Power input: 120 VAC 60 Hz 20 Amps at full load;actual current draw is 0.05A plus connected load.
  • Power input connector:  NEMA 5-15P (15AU-ground) on 2 foot 12 gauge pigtail. Connector must be replaced with a 20Aconnector for full power use.
  • Idle power: Less than 1 Watt.
  • Power output: 120 VAC 60 Hz 0.83 Amps maximumper output. No minimum load requirement.
  • Output protection: None. Overloading of outputscan result in output failure.
  • Output connectors: NEMA 1-15R (15A polarizedungrounded parallel blade).
  • Dimming circuit: Digitally fired, phasecontrolled 16 Amp snubberless triac (Alternistor) with high dv/dt driver.Triacs are screwdriver replaceable. One spare triac provided. A leakagecontrol circuit on each output prevents ghosting of moderate loads.
  • Rise time: 2 uS (10% to 90% at 90 degree firingangle) at rated load
  • Dimming curve: Square law; visually appealing onLED lamps (120V), halogen lamps, magnetic low-voltage (MLV) and electroniclow-voltage (ELV)
  • Non-dim curve: Optional factory programmednon-dims turn on at 60%, off at 40%. Outputs switch at zero crossing.
  • DMX footprint: Twenty-four consecutive DMX slotsbeginning with the selected DMX starting address
  • DMX starting address: Three digit front panelthumbwheel switch; address changes are immediate (no power cycling required).
  • Local control: “Address switch” setting of 601turns on output 1, 602 turns on output 2, etc.
  • Chase mode: Factory programmed chase sequencesare available. Please call.
  • Status indicators:
      -  Red POWER indicator.
     -  Green MIMIC 1 indicator mimics the intensity of output 1 (usefulin troubleshooting).
      -  Green SIGNALindicator illuminates when DMX512 is present; flashes when local control isactive (address switch settings of 601 thru 624).
  • Cooling: Processor controlled low speed fanexchanges internal air from front to side.
  • Isolation: DMX512 input is optically isolatedfrom AC power circuits to 600 Volts.
  • Color: Silver hammer tone with black front andrear panels.
  • Safety listing: Pending
  • Size and weight: 1.7" high x 10.5" deep x 19"wide (17" behind rack), 7 pounds
  • Warranty: Five years parts and labor. Dimmer must be returned to DougFleenor Design for warranty repair. Shipping to Doug Fleenor Design is to bepaid by the customer. Return ground freight is paid by Doug Fleenor Design.Warranty covers manufacturing defects.

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