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METHOD AND APPARATUS FOR USE IN SUPPLYING POWER OVER A TELEPHONE LINE

  • US 20160330334A1
  • Filed: 12/24/2014
  • Published: 11/10/2016
  • Est. Priority Date: 12/31/2013
  • Status: Active Grant
First Claim
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1. A reverse power supply unit for supplying electrical power from a customer premises device to an access node via a twisted copper pair, the reverse power supply unit comprising:

  • a power consumption signature detector operable to detect if power drawn from the reverse power supply unit corresponds to a signature power consumption pattern indicative of a telephony device being in or transitioning into an off-hook state when connected directly to the reverse power supply unit and not being connected via a current limiting interface.

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