Fiber optic telecommunications card with security detection

  • US 10,554,297 B2
  • Filed: 02/12/2019
  • Issued: 02/04/2020
  • Est. Priority Date: 07/09/2001
  • Status: Active Grant
First Claim
Patent Images

1. A telecommunications assembly, comprisinga printed circuit board;

  • andcomponents affixed to the printed circuit board, wherein the components include;

    an optical receiver configured to receive an optical data signal from an optical fiber of an optical fiber telecommunications system;

    an energy level circuit, optically coupled to the optical fiber, wherein the energy level circuit is configured to detect an energy level of the optical data signal, wherein the energy level circuit includes;

    a photodetector to generate a photodetector voltage indicative of the energy level of the optical data signal; and

    a comparator to generate a comparator signal based on the photodetector voltage.

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