The CB-22/CB-22P Classroom Ceiling Enclosure is designed for classrooms, conference and meeting rooms with a projector and control equipment. This 2’x2’ enclosure has ample room for two full rack pieces of equipment or four half-rack pieces on the built-in shelves. The unit includes an external AC receptacle and a switch/circuit breaker on the ceiling surface, and five AC outlets ergonomically spaced to allow room for wall warts inside the enclosure. A white rim door that you insert a ceiling tile into for a matching look is includ- ed. An optional fan kit and a variety of mounting kits are available. The CB-22S Smart Ceiling Enclosure is designed for classrooms, conference and meeting rooms with a projector and other AV equipment. This 2’x 2’ enclosure drops into any standard drop ceiling installation and provides power switching and distribution as well as shelves to mount 2 full rack or 4 half rack pieces of equipment above the ceiling. The CB-22 Ceiling Enclosure provides one projector outlet facing the room and 2 un-switched and 3 switched ergonomically spaced AC outlets inside the box. A built in thermostatically controlled fan provides equipment cooling. It is a “Smart Green Enclosure”with Smart Sense technology that detects the power state of the projector and uses the projector’s power state to turn the switched outlets on or off. The cover is a white trim ring, similar to the ceiling grid, that holds a matching ceiling tile for a finished look.