AT&T 76450 Requirements, Purpose, Scope, Pre-assembled versus Field Assembled Network Equipment

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Common Systems Connection Standards

AT&T Services, Inc

Date: August 31, 2007

ATT-TP-76450, Issue 9

GENERAL

1.1Requirements

This document provides the requirements for interconnection of new equipment in the AT&T Local Exchange Carrier and AT&T Corporation networks. The appendices include the ATT equipment evaluation process to be used to verify compliance to these requirements.

1.2Purpose

The AT&T Local Exchange Company’s and AT&T Corporation’s networks is designed around fundamental standards for the purposes of meeting interconnection, safety, and industry standards such as ANSI, space considerations, and compatible technologies. New equipment is required to integrate into the network seamlessly (fit, form and finish), without the impact or cost pressure to compensate for the product introduction.

The purpose of this section is to provide equipment suppliers with an overview of the AT&T network interconnection requirements most commonly encountered as non-compliant with new equipment and a process for relaying information about compliance to these requirements. This document is not intended to be a comprehensive list of all AT&T interconnection requirements. A product's compliance with the requirements and objectives of this section will not be the sole basis for the acceptance of the product, however noncompliance with one or more of the requirements or objectives of this section may be the basis for a product's denial of purchase.

1.3Scope

Unless otherwise stated, the requirements contained herein apply to equipment systems and assemblies intended for installation in network equipment buildings, equipment areas within buildings, electronic equipment enclosures such as controlled environmental vaults, outside electronic equipment cabinets, and customer locations.

1.4Pre-assembled versus Field Assembled Network Equipment

Network Equipment layouts provided as overall solutions need to be reviewed in one of two ways regarding the applicability of Common Systems components and products. ATT Local Exchange is only concerned with the connectivity and interconnection issues between the OEM equipment and the telco facilities for Common Systems evaluations. OEM requirements internal to the Network Equipment hardware are not reviewed under this documentation.

OEM connectors and external contact points will meet the requirements contained in this document for performance, reliability and suitability. The use of a “Plug & Play” system using internal self contained Network Elements must also meet ATT standards contained in TP 76200.

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Contents Canceled/Superseded Doc N/A Scope RequirementsPurpose Pre-assembled versus Field Assembled Network EquipmentATT-TP-76450 Internet Web Site Product Evaluation Process Additional AT&T RequirementsReasons for Reissue Adherence to AT&T Standard SuppliersPower Feeds AC Powered EquipmentRedundant Power Feeds Nominal -48v DCList 1 Drain Battery Return ConductorDrain Definitions List 1X DrainTwo Hole Connections Location of Power Terminations1 16 AWG Stranded Power Cable and Larger Size conductor Acceptable termination Associated Listings 3 18 AWG Power Cable and SmallerVisual Power Alarms and Status Indicator Fusing of Capacitors Power Distribution DeliveryIndividually Mounted PDU NE Integrated Power DistributionDirect Bdfb Power Delivery Standards Clock output lead cabling Synchronization/Timing StandardsTermination of timing leads Redundancy of timing inputsAlarms Output card exhaustionTL1 / TCP-IP TBOS/TABS Fiber Fiber AttenuatorsSee Figure Copper DS1 Cross-Connect Wire Central Office Copper Wire and Cable Protection of Cable and Jumpers Vendor DocumentationUnusual Cable Types Softcopy DocumentationCraft Interface Instructions Alarm/Trouble Shooting GuideHard Copy Documentation Personnel Injury and Equipment Damage WarningsRevision Numbering Consistent Terminology throughout DocumentationConsistent Terminology between Documentation and Platform Revision HistoryEquipment lighting Other interconnection requirementsList of Documentation Test Streaker CardsProcess Appendix a ATT-TP-76450 Checklist Instructions and ProcessInstructions Page Power Interconnection Standards Alarm Standards Vendor Documentation Part & N/A Footnotes Rqmt# CommentAppendix C References Document Number Document DescriptionAppendix D ATT Contact List Appendix E Acronyms
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