Video router

A Video Router also known as a Video Matrix Switch is an electronic switch designed to route video signals from multiple input sources, such as computers, surveillance cameras, and DVD players, to one or more display devices, such as monitors, projectors, and TVs.

Inputs and outputs

The number of inputs and outputs varies dramatically. Routers are normally described by number of inputs by number of outputs e.g. 2x1, 256x256, 576x1152. Some video routers, by the use of additional drop-in cards, allow the system to be expanded for more inputs or outputs, or to support other formats.

Signals

The signal format that the router transports can be anything from analogue composite video using PAL and NTSC. Also multi-format routers can route more than one Digital video signal format, Serial Digital Interface (SDI), HD-SDI, component video. Some routers have the ability to internally convert digital to analog and analog to digital. For HD Video, HDMI Matrix switch can be used to switch any HDMI source to any connected HDTV using a HDMI connection.