conˈtrol room noun [countable] the room that a process, service, large machine, factory etc is controlled from:
the submarine’s control room [TahlilGaran] Dictionary of Contemporary English ▲
control room n. A room containing the panels and switches used to control something (like a TV broadcast).
While a television program is on the air, engineers are at their places in the control room. [TahlilGaran] English Idioms Dictionary ▲