The CEBus standard has made it possible for devices developed by different manufacturers to communicate over the power line. Further, the standard allows analog adjustments of devices besides transmitting and receiving binary information. This Controller extends the distance from which these devices can be controlled.

To extend the distance of communication with a device, a telephone line interface was developed that allows the user to communicate with a CEBus device via the Controller. The Controller responses [sic] to Central Office signaling and opens its communication channel to allow the user to provide it with the commands by using the telephone keypad. The Controller interprets these commands and sends the appropriate information over the power line to the device specified in the command.

To make the Controller user friendly a voice circuit has been included. This circuit provides all the prompts and responses to guide the user for proper operation of the Controller.