48 channel DMX dimmer pack for LEDs

• 48 channels with one small board!  No more compromises due to not having as many channels as you really want.
• Each channel provides 20mA of current-controlled switching.  No external current limiting resistors needed.  Hook up your LED(s) and go.
  
• Each channel can switch up to 15V, so several LEDs can be wired in series per channel.
  
• Refresh rate is approximately 400Hz.
• 3 selectable intensity scaling curves for linear perceived brightness with linearly increasing DMX values ("gamma correction").  This is possible because the board actually runs at 4096 levels (12 bits) per LED.  These scaling curves allow 8-bit DMX to have a wide dynamic range, with excellent "resolution" at the dimmest settings.
  
• LED brightness levels retained if DMX signal is lost.
  
• DMX ID settable 1-511 via DIP switch, changes are immediate (no power off and back on needed), status LED blinks orange to acknowledge setting change.
  
• DMX termination on/off via DIP switch.  No jumpers or plugs to deal with.
  
• Run test chase pattern yes/no via DIP switch, which is very handy for debugging installations.
• High-resolution (16-bit DMX) mode yes/no via DIP switch.  This allows the ultimate in precise dimming control with 4096 levels!
  
• Multicolor status LED indicates DMX protocol or wiring error (red), no DMX wire connection or no data on connection (green slow blink), and valid DMX frames incoming (green fast blink).
• Supports the top speed possible with DMX: 512 channel frames @ 44fps.
  
• LED connection headers are a unique "pluggable" design: they can be unplugged from the board, wires added/removed, then plugged back in.  They can be plugged in two ways: such that the wires exit up out of the board (shown in in picture) or more conventionally parallel to the board.  This allows for much easier installation and for moving installations, since the board and the LED clusters are easily separated.
  
• Board electronics runs from 6-15V DC @ 100mA typical/250mA peak, reverse polarity protected.  5V powering possible with caveats; ask for details if this would be beneficial to your application.  (Note that this doesn't include the power consumed by your LEDs, which is approximately 900mA maximum.)  A regulated power supply is needed; cheap "wall-wart" supplies typically output several volts higher than their specification, so a garden-variety "12V" wall-wart may put out 15V or more.  This may damage the board.  Feel free to ask me about suitable power supplies or how to tell if yours will work safely.
  
• The DMX and DC power input have plated input holes on the board (in addition to the terminal blocks) to allow wires to be directly soldered to the board if desired.
  
• Up to 16 boards can run from a single DMX source, so a complete DMX universe of 512 channels can be easily built.
  

• Each of the three LED terminal blocks (each "bank") have a common positive to be wired to each of the 16 LEDs (or LED clusters) in that bank.
  
• LED (or LED cluster) negative goes to terminal block.
• This system does 3-way multiplexing, in that each terminal block of 16 is actually powered on at 55mA 1/3 of the time.  This is very typical of LED displays, and LEDs are designed to operate this way.  For more details, or to request an alternate current level (a simple change) please contact me.