Fiber optic telecommunications card with energy level monitoring

  • US 7,620,327 B2
  • Filed: 07/03/2002
  • Issued: 11/17/2009
  • Est. Priority Date: 07/09/2001
  • Status: Active Grant
First Claim
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1. A transceiver card for a telecommunications box for transmitting data over a first optical fiber and receiving data over a second optical fiber, the card comprising:

  • a transmitter for transmitting data over the first optical fiber, the transmitter having a laser, a modulator, and a controller receiving input data and controlling the modulator as a function of the input data, the transmitter transmitting optical signals for telecommunication as a function of the input data;

    a fiber output optically connected to the laser for connecting the first optical fiber to the card;

    a fiber input for connecting the second optical fiber to the card;

    a receiver optically connected to the fiber input for receiving data from the second optical fiber; and

    an energy level detector optically connected between the receiver and the fiber input to measure an energy level of the optical signals, wherein the energy level detector includes a plurality of thresholds.

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