A system of sophisticated electronic equipment for the presentation of theater-quality images and sound in the home.

Whole House Audio (distributed audio) systems are ones which allow for playback and often control of music throughout an entire home or building.

An electronic intercommunication system, as between two rooms.

An alarm in which interruption of electric current to a relay, caused, for example, by the breaking of a metallic tape placed at an entrance to a building, deenergizes the relay and causes the relay contacts to operate the alarm indicator.

Central vacuum systems are designed to remove dirt and debris from homes and buildings, sending particles through tubing located in the walls to a receptacle in a remote area.

The act of attaching, connecting, or installing "home run" wires contained in a distribution panel.

Lighting control systems, with an embedded processor or industrial computer device, usually include one or more portable or mounted keypad or touchscreen console interfaces, and can include mobile phone operation. These control interfaces allow users the ability to remotely toggle (on-off) power to individual or groups of lights (and ceiling fans and other devices), operate dimmers, and pre-program space lighting levels.

The management of admission to system and network resources. It grants authenticated users access to specific resources based on company policies and the permission level assigned to the user or user group. Access control often includes authentication, which proves the identity of the user or client machine attempting to log in.

Television transmitted to a particular audience at specific locations via coaxial cables, telephone wires, internet protocols, fiber-optic strands, microwave radio systems, or communications satellites.