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Method of providing a remote power feed to a terminal in a local area network, and corresponding remote power feed unit, concentrator, repeator, and terminal

  • US 6,715,087 B1
  • Filed: 11/02/2000
  • Issued: 03/30/2004
  • Est. Priority Date: 11/04/1999
  • Status: Expired
First Claim
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1. A method of providing a remote power feed to a terminal in a local area network, the method comprising:

  • producing at least one detection signal on at least two conductors of a line for connecting the local area network to a remote terminal, that signal having an energy such that the terminal cannot be damaged under any circumstances, detecting the presence of a remote terminal adapted to receive a remote power feed by detecting the presence of predetermined impedance in the remote terminal on the basis of a current created by the test signal in that line, and sending a power supply current in that line when the presence of a terminal adapted to receive a remote power feed is detected.

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