ProCo Sound DMX3U-BI-6 DMX Over Cat 3-Universe Break-In Fan

The ProCo Sound DMX3U-BI-6 is part of the DoC (DMX over Category Cabling) system, engineered for lighting engineers and AV integrators who need to consolidate multiple DMX universes over a single CAT6 or CAT5e infrastructure. By converting three DMX lines into one Neutrik EtherCON connection, it eliminates the need for parallel multi-cable runs across long venue distances — a critical advantage in large touring rigs, theatrical installs, and permanent architectural lighting systems.

The 6 ft. break-in fan provides the working length needed to dress cables cleanly at distribution points, whether at a dimmer rack, a truss node, or a front-of-house position. The DoC system scales from two to four universes, and all fan cables — including this 3-universe break-in — are fully compatible with the DoC4U-I and DoC4U-O break in/out boxes, which support both eyelet and truss-clamp mounting configurations for flexible rigging.

For integrators building structured cabling runs where DMX must share pathways with network infrastructure, or for touring crews standardizing on EtherCON-based signal distribution, the DoC fan series delivers a reliable, field-proven solution without requiring custom fabrication or adapters at each universe handoff point.