12 Channel DMX Decoder V2


12 Channel Constant Voltage DMX512 & RDM LED Decoder with Master stand-alone functionality, 8 and 16 bit support, four PWM frequency selection, multiple dimming curves and built-in OLED display. This unit also has XLR, RJ45 and screw block connectors providing total flexibility for wiring types. In addition, it has a built-in signal booster for longer runs or situations where you have a lot of downstream decoders. With two separate DC inputs, you can even run mixed voltages (eg: 12 and 24 volt) on the same unit. This is the ultimate and only decoder you’ll ever need!

Availability: In stock

SKU: A-D12A-DMXD Category:

The Axion Lighting 12 Channel DMX Decoder offers a great way to control single color, tunable white, RGB, RGBW or even RGBWW fixtures. With 12 independent channels you can mix and match LED strips, recessed lights, or more to create multiple independent zones.  


  • Fully compliant with the DMX512 standard protocol.
  • No DIP switches! Use the integrated buttons and OLED display to configure the DMX address and settings.
  • Supports RDM functionality for those DMX masters or controllers that take advantage of this enhanced protocol. 
  • 16 bit (65536 levels) or standard 8 bit (256) level selection.
  • PWM dimming frequency selection: 500 / 2000 / 8000 / 16000 Hz options for reduced power noise and LED flickering.
  • Output dimming curve gamma value of 0.1 to 9.9 selectable.
  • Over-heat, over-load and short circuit protection with automatic recovery.
  • CE, EMC, and LVD certified.
  • 5 year warranty
Weight 3 lbs
Dimensions 12 × 8 × 2 in


  • Input Voltage: 12 – 24 volts DC
  • Input Current: 60.5A
  • Output Voltage: 12 x (12 – 24) VDC
  • Output Current: 12 channel, 5 amps per channel max
  • Output Type: Constant voltage
  • Operating Temperature: -30C – +55C
  • IP Rating: IP20
  • EMC Standards: EN55032:2015, EN61000-3-2:2014, EN61000-3-2:2013, EN55024 :2010/A1:2015
  • Safety Standards: EN 61347-1:2015 and EN 61347-2-11:2015
  • Certifications: CE, EMC, LVD

Installation Instructions

Connecting RGBW Fixtures to the 12 Channel Decoder

Connecting RGB Fixtures to the 12 Channel Decoder

DMX Decoder Mode

  • Address can be from 001 – 512 through setting “Addrs”
  • DMX Decoder mode can be DIM (1 channel single color), CCT (2 channel color temperature) or RGB (3 channel). Use RGB mode even if you’re using RGBW or RGBWW fixtures.
  • Output PWM Frequency can be changed to Standard (Std = 2000 Hz), High (High = 8000 Hz), Mid (Mid = 500 Hz), or Super (Supr = 16000 Hz). Again, a higher PWM frequency will cause a lower output current but helps reduce power noise and visible flickering if detected.
  • Bit mode can be changed from the default 8-bit to 16-bit if desired.
  • The output dimming curve (for 8-bit only) can be changed from Standard, with a Gamma of 1.6 to Linear or a custom value between 0.1 and 9.9. Leaving it on Standard is recommended and meets most applications. To change the custom value, long press the < or > button.

Standalone RGB Controller Mode

  • When selecting the option to set the unit up as a standalone RGB controller, it is assumed that the lights connected are only RGB and not RGBW or RGBWW.
  • There are 10 modes you can set in this state:
    • 01 – White chase jump
    • 02 – White synchronous fade
    • 03 – White chase fade
    • 04 – RGB synchronous jump
    • 05 – RGB chase jump
    • 06 – Color synchronous gradual
    • 07 – Color jump gradual
    • 08 – RGB synchronous fade
    • 09 – RGB chase fade
    • 10 – All of the modes above loop


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