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Plug Insertion Detection Circuits and Related Methods and Communications Connectors

  • US 20120187961A1
  • Filed: 05/19/2011
  • Published: 07/26/2012
  • Est. Priority Date: 01/21/2011
  • Status: Active Grant
First Claim
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1. A method of detecting a plug insertion into a plug aperture of a communications connector that includes a plurality of input ports, a plurality of output ports, and a plurality of conductive paths that connect respective ones of the input ports to respective ones of the output ports, where the conductive paths are configured as a plurality of differential pairs of conductive paths, the method comprising:

  • transmitting a control signal to a control signal input circuit on the communications connector that includes a reactive coupling element;

    electromagnetically coupling the control signal through the control signal input circuit;

    detecting the electromagnetically coupled control signal on a first of the differential pairs of conductive paths; and

    determining that a plug is present in the plug aperture based at least in part on detecting the electromagnetically coupled control signal on the first of the differential pairs of conductive paths.

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