AT&T 76450 manual Standards

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Common Systems Connection Standards	AT&T Services, Inc
Date: August 31, 2007	ATT-TP-76450, Issue 9

As an exception, there are some new network elements that employ high DC current demands that when collectively configured in a packaged bay arrangement may exceed available fuse position capacities found at the BDFB. In a method to utilize the existing AT&T - DC distribution architecture, these individual network elements may be independently and directly fused at the BDFB via an SPDU. In these instances, direct feeds to the BDFB may be considered appropriate. However, the individual network element shall include an on/off /power cut off to locally disconnect the power from the bay components. In applications where a bay mounted SPDU is desired, AT&T has approved products designed to serve in that capacity and still allow

for independently fused services.

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Contents Canceled/Superseded Doc N/A Pre-assembled versus Field Assembled Network Equipment RequirementsPurpose ScopeAdditional AT&T Requirements ATT-TP-76450 Internet Web Site Product Evaluation ProcessAdherence to AT&T Standard Suppliers Reasons for ReissueNominal -48v DC AC Powered EquipmentRedundant Power Feeds Power FeedsList 1X Drain Battery Return ConductorDrain Definitions List 1 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 Power Distribution Delivery Fusing of CapacitorsIndividually Mounted PDU NE Integrated Power DistributionDirect Bdfb Power Delivery Standards Redundancy of timing inputs Synchronization/Timing StandardsTermination of timing leads Clock output lead cablingOutput card exhaustion AlarmsTL1 / TCP-IP TBOS/TABS Fiber Attenuators FiberSee Figure Copper DS1 Cross-Connect Wire Central Office Copper Wire and Cable Softcopy Documentation Vendor DocumentationUnusual Cable Types Protection of Cable and JumpersPersonnel Injury and Equipment Damage Warnings Alarm/Trouble Shooting GuideHard Copy Documentation Craft Interface InstructionsRevision History Consistent Terminology throughout DocumentationConsistent Terminology between Documentation and Platform Revision NumberingTest Streaker Cards Other interconnection requirementsList of Documentation Equipment lightingProcess Appendix a ATT-TP-76450 Checklist Instructions and ProcessInstructions Page Power Interconnection Standards Alarm Standards Part & N/A Footnotes Rqmt# Comment Vendor DocumentationDocument Number Document Description Appendix C ReferencesAppendix E Acronyms Appendix D ATT Contact List