Term of the Moment
Josephson junction
Definition: rack mounted
Electronic equipment that is bolted into a cabinet with a standard width of 19" and 24". All types of electronics come in rack-mounted cases, including servers, test instruments, network and telecommunications components, storage drives and A/V equipment. Datacenters have from dozens to hundreds of rack-mounted cabinets. See blade server.
Rack-Mounted Cabinet
One, Two and Three Rack Units
A Rack of Betacams
This AMCO 19" cabinet also contains flat shelves for non-rack-mounted equipment. A host of accessories, including side and rear panels, doors, locks and fans are available for the cabinet. (Image courtesy of AMCO Engineering Company.)
The vertical height of rack-mounted devices is specified in rack units, and one rack unit (1RU or 1U) is 1.75 inches.
In datacenters and professional studios around the world, equipment is routinely rack mounted. These Betacam videotape recorders were in a TV studio, and each unit took 5U of rack space.