DMX Decoder for RGBW Lighting
A DMX decoder for RGBW lighting is a device that converts DMX512 control signals into individual control for RGBW (Red, Green, Blue, White) LED fixtures. Here's what you should know:
Key Features of RGBW DMX Decoders
1. **Channel Configuration**:
- Typically uses 4 DMX channels (one each for Red, Green, Blue, and White)
- Some models may offer additional channels for effects or dimming
2. **Common Specifications**:
- DMX512 protocol support
- 8-bit (256 levels) or 16-bit (65,536 levels) resolution
- Operating voltage range (often 12V or 24V DC)
- Maximum current/power output per channel
3. **Connection Types**:
- DMX input via 3-pin or 5-pin XLR
- Screw terminals or connectors for RGBW output
- Optional DMX thru/output for daisy-chaining
Setup Considerations
1. **Addressing**:
- Set starting DMX address to match your controller configuration
- Each RGBW fixture typically requires 4 consecutive addresses
2. **Wiring**:
- Proper polarity for DMX signal
- Correct gauge wire for power distribution
- Termination resistor (120Ω) at last device in DMX chain
3. **Configuration Options**:
- Channel modes (RGBW, RGB, etc.)
- Dimming curves
- Standalone modes (for simple operation without DMX)