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Local area network for distributing data communication, sensing and control signals

  • US 20060209847A1
  • Filed: 05/23/2006
  • Published: 09/21/2006
  • Est. Priority Date: 07/07/1999
  • Status: Active Grant
First Claim
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1. A control network in a building for wired coupling of at least one analog device to a data unit, the network comprising:

  • first, second and third nodes; and

    first and second wiring segments, each wiring segment comprising at least two conductors, wherein said first wiring segment connects said first and second nodes together in a point-to-point connection, and said second wiring segment connects said second and third nodes together in a point-to-point connection, said first and second nodes effect bi-directional communication of serial digital data over said first wiring segment and said second and third nodes nodes effect bi-directional communication of serial digital data over said second wiring segment, at least one of said nodes is connectable to a data unit for coupling the serial digital data carried over at least one of said wiring segments to the data unit, at least one of said nodes is connectable to the analog device for coupling the serial digital data carried over said at least one of said wiring segments to the analog device, the analog device is a sensor or an actuator, and each of said nodes is addressable in said network.

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