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Multi-rate, multi-protocol, multi-port line interface for a multiservice switching platform

  • US 7,822,022 B2
  • Filed: 03/13/2009
  • Issued: 10/26/2010
  • Est. Priority Date: 06/19/2003
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a line card with a first section, wherein the first section comprises;

    a section and line termination circuit configured to perform section and line termination, and framing and overhead processing for a first protocol signal;

    an integrated circuit chip configured to encapsulate and map an Ethernet signal into the first protocol signal;

    switches configured to;

    route the Ethernet signal to the integrated circuit chip;

    route the first protocol signal to the section and line termination circuit;

    route second protocol signals to the section and line termination circuit;

    a pluggable interface;

    a first daughter card configured to plug into the pluggable interface comprising;

    a multiport optics module comprising a plurality of ports and configured to receive either the Ethernet signal or second protocol signals;

    a configurable clock and data recovery module configured to;

    recover the Ethernet signal from the multiport optics module and pass the Ethernet signal to the switches when the configurable clock and data recovery module is configured for Ethernet signals; and

    receive the second protocol signals of various bandwidths when the configurable clock and data recovery module is configured for second protocol signals and deliver the second protocol signals at a highest available second protocol bandwidth to the switches.

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