What is the main function of a video router in a live production environment?

The main function of a video router in a live production environment is to provide a centralized system for switching and distributing multiple video signals from various sources to multiple destinations. It allows the production team to quickly and easily route any video source, such as cameras, graphics servers, video playback devices, and other inputs, to any output, such as monitors, recording devices, streaming encoders, and broadcast feeds. Instead of physically re-cabling connections, the router allows operators to make these routing decisions electronically, often with the push of a button or a pre-programmed command. This simplifies the workflow, improves efficiency, and reduces the risk of errors during a live production. For example, a video router allows you to send camera 1 to the program output, camera 2 to a preview monitor, and a graphics server to a recording device, all simultaneously and without manually changing cables. Modern video routers often support both SDI (Serial Digital Interface) and IP-based (Internet Protocol) video signals, providing flexibility for different types of equipment and workflows. The video router acts as a central hub for all video signals, enabling seamless and flexible routing of video throughout the production facility.