The Evertz 77050E-HD is a professional optical-to-electrical converter module designed for the Evertz 7700 series modular platform. Its primary function is to receive a high-definition serial digital video signal transmitted over fiber optic cable and convert it back to a standard electrical HD-SDI signal on a coaxial BNC connector. This capability is essential in broadcast and production facilities where video signals must be transmitted over long distances—exceeding the practical limits of coaxial cable—without degradation. Fiber optic transmission provides immunity to electromagnetic interference (EMI), eliminates ground loop issues, and supports much greater distances, making it the preferred method for links between buildings, across large campuses, or in mobile production trucks.

Engineered for reliable integration into a modular frame, the 77050E-HD card accepts an optical input via an industry-standard SFP (Small Form-factor Pluggable) transceiver module, which allows the user to select the appropriate fiber type (single-mode or multi-mode) and connector (LC, SC, etc.) for their specific installation. It converts the optical signal, performs re-clocking and signal conditioning to ensure data integrity, and outputs a clean, standards-compliant HD-SDI signal. The module is typically hot-swappable and leverages the power supply and management infrastructure of the 7700 chassis, ensuring high availability and ease of monitoring within the broader Evertz control system.

As a component of a professional signal infrastructure, the 77050E-HD enables the practical extension of high-quality video signals across a facility or between sites. It is commonly used in conjunction with its counterpart electrical-to-optical converters to create robust, long-haul digital video links. By providing a reliable interface between the fiber backbone and standard coaxial-based equipment, it plays a critical role in building scalable, future-proof broadcast and production systems.