What do you call the row of buttons on a switch where each button represents a video source and can be pressed to play live or preview?

What do you call the row of buttons on a switch where each button represents a video source and can be pressed to play live or preview?

• A. Video Source Row
• B. Bus
• C. Channel
• D. Plex

Answer: (B)

On a video switcher, the row of buttons used to route each video source is called a bus. Each button assigns a source to a bus path, with the program bus carrying whatever is live on air and the preview bus showing the next source to be switched in. This naming comes from how switchers route signals along signal paths called buses, making “bus” the precise term for that row of selectable sources. Describing it as a “video source row” is just a descriptive phrase, not the standard term. A “channel” often refers to a different concept in broadcasting, and “plex” isn’t used for this part of switcher routing.

On a video switcher, the row of buttons used to route each video source is called a bus. Each button assigns a source to a bus path, with the program bus carrying whatever is live on air and the preview bus showing the next source to be switched in. This naming comes from how switchers route signals along signal paths called buses, making “bus” the precise term for that row of selectable sources.

Describing it as a “video source row” is just a descriptive phrase, not the standard term. A “channel” often refers to a different concept in broadcasting, and “plex” isn’t used for this part of switcher routing.