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Fundamental Generic Requirements for Metallic Digital Signal Cross-Connect Systems DSX-1, -1C, -2, -3

Document Number GR-320
Issue Number 01
Issue Date Aug 2003
Replaces TR-NPL-000320 Issue01

    ABSTRACT: GR-320-CORE replaces TR-NPL-000320, Issue 1, April 1988, but contains NO TECHNICAL CHANGES from that original document. It has been issued strictly to conform to the new Telcordia Technologies document format and GR process, and carries a new issue number and date.

    Digital Signal Cross-Connect (DSX) frame is a centralized termination point for digital equipment at a particular digital signal rate. A DSX frame must have the capability to provide: rearrangeable connections between any two equipment terminations or appearances; bridged access, whereby equipment can be connected in parallel with a digital signal path; and series access, whereby a digital signal path can be split. These capabilities enable a DSX frame to provide several operational functions, including equipment interconnection, test access, and patching.

    This Generic Requirements document (GR) describes the fundamental Telcordia generic requirements for metallic DSX systems for DS1 (1.544 Mbps), DS1C (3.152 Mbps), DS2 (6.312 Mbps), and DS3 (44.736 Mbps) systems. In the view of Telcordia, these requirements should apply to any of these DSX systems, regardless of the technologies employed in their design or manufacture. This is not a standalone document. It is to be used with other GRs, Technical Advisories (TAs), or Technical References (TRs) that cite requirements for specific implementations of a DSX system.

    When using GR-320, you may need to refer to GR-63, GR-321, GR-485, TR-NPL-000424, TR-NPL-000322, and TR-NWT-000233.

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