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SONET Add-Drop Multiplexer (SONET ADM) Generic Criteria


Document Number GR-496
Issue Number 02
Issue Date Aug 2007
Replaces TR-NWT-000496 Issue03
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    ABSTRACT: Issue 2 of GR-496, SONET Add-Drop Multiplexer (SONET ADM) Generic Criteria , replaces Issue 1.

    GR-496 provides generic criteria for a particular type of SONET equipment called a SONET Add-Drop Multiplexer (ADM) or its
    functional equivalent. A SONET ADM is a Network Element (NE) that provides either one or two "high-speed" SONET interfaces, as well as
    "tributary" interfaces at one or more of the various rates supported in the digital network. SONET ADMs are especially prolific in Core
    and Access Metropolitan Area Networks (MANs) in ring configurations.

    Issue 2 of GR-496 discusses specific features and functions for this SONET equipment, and aligns with the requirements in Telcordia
    GR-253, Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria. It also has been updated to reflect
    industry developments for ADMs during the last nine years.

    Issue 2 of GR-496
    • Discusses SONET ADM functions and applications, network compatibility, SONET ADM features, and quality and reliability

    • Coordinates OC-192 criteria and requirements with GR-253

    • Adds support for OC-768 high speed interfaces, OC-192 tributary interfaces, and STS-192c cross connections

    • Adds support for virtual concatenation (VCAT)

    • Coordinates bit integrity criteria with GR-253.

    The criteria in GR-496 are intended to be applicable to SONET ADMs operating in any of a wide variety of possible applications and
    network configurations, thereby increasing its value and importance for carriers, suppliers, and manufacturers.

    GR-496 and GR-1400 replaced TR-NWT-000496 and TR-TSY-000496-SUP01.

    When using GR-496, you may need to refer to GR-253, GR-499, GR-1230, GR-1244, and/or GR-1400. You may also want
    to refer to GR-57, GR-472, and/or GR-474.

    Components of this product are:
    GR-496-CORE

    Table of Contents:

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