DMX-3CH-4A 4 Amp 3 Channel LED DMX Controller/Decoder

Part Number: DMX-3CH-4A | UPC: 84778100523
Stock: In Stock
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Product Description
3 Channel DMX Controller/Decoder can control up to 3 different 12VDC LED products or any one RGB LED Light Bar or Strip. Controller can run in stand alone mode using Address code switches or under DMX-512 digital control signals using XLR or RJ45 DMX-512 Input/Output interfaces. DMX decoding driver converts universal DMX512/1990 digital signal to PWM signal, which can be controlled by DMX512 console with 16-bit gray scale output per channel . Maximum load is 4 Amps per channel - 12 Amps total. Includes male and female 3-pin XLR connectors.
Standards and Certifications
CEFCCROHS Compliant2 Warranty

DMX-3CH-4A 3 Channel LED DMX Decoder


The Model DMX-3CH-4A can run on stand alone mode or under DMX control. It receives standard DMX-512 digital control signals and converts to PWM (pulse width modulation) signals for driving LEDs. Connect to any DMX digital console to achieve dimming and and various color changing patterns.

Product Specifications

Applications:  Neccessary conversions of DMX to PWM signals for driving LEDs
Function: Control 3 channel 12VDC LED products or any one RGB LED Light Bar or Strip using DMX console or standalone mode with onboard DIP switches
Operating Voltage:   12~24 Volts DC (use only 12VDC power with 12VDC LEDs)
Connection Mode:   Common Anode (+)
Output:  Three CMOS output RGB
Maximum Load Current:   4 Amps/channel (12 Amps total)
Output Power:  144 Watts
Overall Size:  (L)166 X (W)67 X (H)41 mm
Control Method:  DMX512 RJ45 / DMX512 3-pin XLR / Standalone DIP switches
Standalone Modes: 9 total (7 static and 2 dynamic) see desc. below
Operating Temperature: -25~60°C

Control Functions

1.) Standalone mode is activated when FUN(10)=ON, the following functions can be set using address codes DIP switch

Coding Switch Function
switch 1-9=OFF OFF
Switch 1=ON Red
Switch 2=ON Green
Switch 3=ON Blue
Switch 4=ON Yellow
Switch 5=ON Purple
Switch 6=ON Cyan
Switch 7=ON White
Switch 8=ON Seven Color Change Instant (speed function activated - see coding below)
Switch 9=ON Seven Color Change Fading (speed function activated - see coding below)
Coding Switch Speed Function (When 8 or 9=ON and 10=ON)
Switch 1-7=OFF Slowest Color Change Mode
Switch 1=ON 1 Step Faster
Switch 2=ON 2 Steps Faster
..... .....
Switch 7=ON Fastest Color Change Mode

2.) DMX signal can be received when FUN(10)=OFF, along with using either the DMX512 RJ45 input/output interface or the DMX512 3-pin XLR input/output interface


1.) Only power with 12VDC Power Supply to connect to 12 Volt Light Strips or unit will be damaged. Our Enclosed Power Supplies can be direct wired to "+" and "-" terminals on removable Green connector on side of unit.
2.) Connect according to the above drawing and note that the Green Connectors can be unplugged from the unit.
3.) Do not exceed 80% of Power Supply capacity when calculating Power Supply size to use in your system.
4.) Not suitable for automobile applications


Dimensions in millimeters (inches)

Typical Wiring Schematic

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