The Blackmagic Design 12x12 Smart Videohub CleanSwitch represents a unique fusion of a professional SDI routing matrix and an integrated, automatic video switcher, designed to solve a critical problem in broadcast and live signal distribution: seamless source failover. At its heart is a standard 12-input by 12-output SDI router, providing flexible signal management for a small to mid-sized production facility. However, its defining feature is the "CleanSwitch" technology embedded in one of its output channels. This designated output constantly monitors two pre-selected input sources (a primary and a backup). Should it detect a failure in the primary source—such as signal loss, format change, or excessive errors—it automatically and instantaneously switches to the backup source without generating any glitches, black frames, or audio pops. This cut is undetectable to viewers, ensuring uninterrupted broadcast continuity, which is vital for master control, on-air playback, and critical distribution paths.

Housed in a compact 1RU unit with the robust build quality of the Smart Videohub series, this device is engineered for 24/7 reliability. Configuration and monitoring are handled through an intuitive software interface, allowing engineers to easily assign the primary and backup sources, adjust switch sensitivity, and monitor the status of both feeds. By integrating this intelligent failover capability directly into the router, the CleanSwitch eliminates the need for external, standalone automatic changeover units, saving rack space, reducing system complexity, and increasing overall reliability. It is an essential safeguard for broadcasters, streaming providers, and any organization where maintaining an uninterrupted video signal is non-negotiable, providing peace of mind through automated, frame-accurate protection.