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Lighting control subsystem for use in system architecture for automated building

  • US 6,297,724 B1
  • Filed: 03/07/1996
  • Issued: 10/02/2001
  • Est. Priority Date: 09/09/1994
  • Status: Expired due to Fees
First Claim
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1. A system for switching electrical power to a plurality of loads on a plurality of hot AC lines, the system comprising:

  • a plurality of switching control devices, each containing a power switching element, each switch control device being physically located on a hot AC line extending between a source and a load, the power corresponding hot AC lines to a load attached to the switch conttrol device;

    a control switch input on each switch control device;

    a control interface, and;

    at least one signal branch extending from the control interface, a plurality of switch control devices being attached to each signal branch so that control signals can be communicated bewtween the control interface and the switch control devices, the control interface polling selected ones of the switch control devices, and transmitting output signals to other switch control devices so that the power switching element in one switch control device can be controlled by control switch inputs on another selected switch control device.

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