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Matrix Switcher

Also called: AV matrix, video matrix

A device that routes any of several video inputs to any of several outputs independently, letting multiple sources appear on multiple displays at once.

A matrix is what separates a boardroom from a bar. Eight inputs to eight outputs means each display can show a different source, or all can show one, under control system command. Sizing is about growth: matrices are priced in steps, and the cost of going one size up now is far below the cost of replacing a full one in three years.

Matrices centralise both capability and risk. They belong on a UPS, in a ventilated rack, with EDID and HDCP behaviour documented per port — because when a matrix misbehaves, every display in the building shows it at once.

Related terms

HDBaseT
A transmission standard that sends uncompressed HD video, audio, control, Ethernet, and power up to roughly 100 m over a single category cable.
EDID
The data block a display sends back to a source describing the resolutions, refresh rates, and audio formats it accepts, so the source knows what to output.
HDCP
Copy protection that encrypts video between source and display and refuses to pass content if any device in the chain fails to authenticate.
Rack Unit
The standard vertical increment of equipment rack space, 1.75 inches per U, used to plan how equipment stacks in a rack.

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