DMA 4-Channel DMX Signal Splitter | 12–36V DC DMX512 Distributor

Overview

The DMA 4-Channel DMX Signal Splitter is a professional DMX512 distribution unit designed to ensure reliable signal transmission in multi-branch lighting installations. With one DMX input, one DMX thru port and four fully isolated DMX outputs, the DMA regenerates, amplifies and distributes DMX512 signals for stable long-distance performance. Its wide 12–36V DC input range and compact design make it ideal for architectural lighting, stage lighting, commercial spaces and any installation requiring clean and stable DMX branching.

Key Features

• 4 independent optically isolated DMX512 outputs
• 1 DMX input + 1 DMX thru (loop) port
• Supports DMX512 / DMX512-1990 protocol
• Wide 12–36V DC input compatibility
• Boosts, regenerates and stabilizes DMX signals
• Eliminates signal drop, flicker and interference in large networks
• Protects the system from ground loops and electrical noise
• Each output is fully buffered and amplified
• DMX signal indicators for troubleshooting and monitoring
• Compact metal enclosure for professional installations

Technical Notes

• Splits one DMX signal into four independent branches while maintaining full signal integrity.
• The DMX thru port allows chaining additional splitters or devices.
• Each output regenerates a clean DMX signal to ensure long cable runs are reliable.
• Opto-isolation helps prevent issues caused by grounding inconsistencies.
• Supports up to 32 DMX devices per output branch depending on cable length.
• Ideal for large installations with heavy wiring loads or long-distance signal runs.

Wiring & Installation Notes

• Connect DMX controller or master to the DMX input port.
• Use the DMX thru port to extend the chain or feed another splitter.
• Connect DMX fixtures or decoders to the four output ports.
• Always use twisted-pair DMX512 cable for maximum performance.
• Power the splitter using a stable 12–36V DC power source.
• Terminate the last fixture in each DMX branch with a 120Ω terminator if required.
• Install indoors in a dry, ventilated location (IP20).
• Mount in control cabinets, racks, junction boxes or lighting panels.

Applications

• Architectural DMX lighting systems
• Stage and entertainment lighting
• Commercial DMX installations (malls, hotels, retail)
• DMX signal distribution for RGB/RGBW LED systems
• Large building façades and exterior DMX projects
• Any DMX installation requiring stable multi-branch signal distribution

Technical Specifications

Parameter	Specification
Model	DMA 4-Channel DMX Signal Splitter
Input Voltage	12–36V DC
DMX Input	1 × DMX512 input port
DMX Thru	1 × DMX loop (buffered)
DMX Outputs	4 × isolated DMX512 outputs
Protocol Support	DMX512 / DMX512-1990
Isolation	Optical isolation on outputs
Signal Indicator	Power + DMX activity LEDs
Operating Temperature	–20°C to +50°C
IP Rating	IP20 (indoor)
Dimensions	Compact distribution housing
Warranty	5 years