Professional 4-Universe DMX Break-Out Box with Truss Clamp for CAT6 Lighting Networks
The RapcoHorizon DOC4U-O-CLAMP DMX 512 Box is a professional-grade DMX-over-CAT6 Break-Out solution engineered for efficient and reliable multi-universe lighting control. Designed for lighting technicians, stage engineers, and production professionals, this unit converts up to four DMX lines from a single Neutrik EtherCON connector into individual DMX outputs. Its rugged construction and integrated truss clamp make it ideal for large-scale lighting systems that demand both performance and durability, ensuring seamless operation across long cable runs.
Streamline Complex Lighting Setups with Multi-Universe Output
Managing multiple DMX universes in a lighting rig can be a challenge, especially for large productions. The DOC4U-O-CLAMP simplifies that process by distributing four independent DMX 512 universes through one robust EtherCON connection. This efficient design minimizes cable clutter, speeds up setup and teardown, and maintains high-quality signal transfer. Perfect for live events, touring productions, and fixed installations, it offers a streamlined approach to multi-universe control that saves both time and space.
Seamless Integration with the ProCo DoC System
As part of ProCo’s DMX Over Category (DoC) ecosystem, the DOC4U-O-CLAMP works in tandem with the DoC4U-I Break-In Box. Together, these units allow you to transmit and receive up to four universes of DMX data over a single CAT6 or CAT5e cable, making them an essential part of any professional lighting infrastructure. The system’s versatility supports both mobile production rigs and permanent installations, ensuring clean, consistent DMX performance even across extended distances.
Integrated Truss Clamp for Easy and Secure Mounting
The built-in truss clamp makes installation quick, safe, and convenient. Whether you’re working in a concert hall, theater, or touring environment, the DOC4U-O-CLAMP can be easily mounted onto lighting trusses, grids, or stage structures. This built-in feature eliminates the need for separate mounting hardware and ensures that your DMX breakout box remains stable during demanding performances or transport, keeping your setup neat and secure.
Built for Reliability and Professional Use
Every component of the DOC4U-O-CLAMP is designed with performance and longevity in mind. The heavy-duty metal chassis provides protection in tough environments, while professional Neutrik EtherCON connectors ensure a strong, locked connection. The unit maintains proper DMX 512-A impedance for optimal data transmission, reducing signal degradation over long cable runs. Built for life on the road or in high-demand installations, this box can withstand daily use without compromising signal integrity.
Reliable Signal Distribution Over Long Distances
Using standard CAT6 or CAT5e cabling, the DOC4U-O-CLAMP ensures clean, interference-free DMX transmission across long distances. This makes it a smart choice for large venues, festivals, and broadcast facilities where cable runs can span significant lengths. Its precision-engineered circuitry guarantees accurate timing and communication between lighting controllers, dimmers, and fixtures—keeping your entire lighting system synchronized and dependable.
A Complete Solution for Modern Lighting Networks
The RapcoHorizon DOC4U-O-CLAMP is a practical, professional-grade Break-Out Box built for today’s demanding lighting applications. It reduces cable clutter, enhances system efficiency, and provides flexible mounting options with its integrated clamp. When paired with ProCo DoC Break-In Boxes, it forms a powerful and dependable multi-universe DMX-over-CAT6 solution suitable for any production scale.


