AT&T 76450 manual Central Office Copper Wire and Cable

Page 20

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

Wire and Cable with UL Flammability Ratings of CMX and CMU must not be used within AT&T central offices as UL Flammability Ratings must be MP/CM(same floor), MPR/CMR(Riser- Between Floor) or MPP/CMP(Plenum Condition).

6.11 Central Office Copper Wire and Cable

Frame Wire, DS1 Cross-Connect Wire, Switchboard Cable, Tie Cables and T1 Cable

6.12 Central Office Copper Coaxial Cable

734C/1734C, 735C/1735C Single Conductor and Multiple Conductor Coaxial Cables

6.13 Central Office Copper "Bits" Synchronous Timing Cables

1175A Red Jacketed Bits Timing Cable for all regions except Legacy AT&T, which will use gray jacketed 1175A.

6.14 Central Office Copper Wire and Cable Minimum Inside Bend Radius

For Switchboard, Shielded and Twin Conductor Cable, 5X the Cable Diameter

6.15 Central Office Copper Coaxial Cable Minimum Inside Bend Radius

For Non-Bundled 734 or 735 Type Coaxial Cable and for Bundled 734 Type Coaxial Cable, 7X the Cable/Bundle Diameter.

For Bundled 735 Type Coaxial Cable, 10X the Bundle Diameter.

6.16 Copper Cable Terminations

Copper Cable Terminations must have both toe and heel screw terminations for permanent lockdown. If a 90 degree connector is used and blocks the screw, use a clamp to permanently terminate the connector.

6.17 Cable Trays

Copyright ©2004 – 2006, AT&T Knowledge Ventures

All rights reserved

Page 20

Image 20

Contents Canceled/Superseded Doc N/A Requirements PurposeScope Pre-assembled versus Field Assembled Network EquipmentATT-TP-76450 Internet Web Site Product Evaluation Process Additional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 SuppliersAC Powered Equipment Redundant Power FeedsPower Feeds Nominal -48v DCBattery Return Conductor Drain DefinitionsList 1 Drain 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 Synchronization/Timing Standards Termination of timing leadsClock output lead cabling 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 Vendor Documentation Unusual Cable TypesProtection of Cable and Jumpers Softcopy DocumentationAlarm/Trouble Shooting Guide Hard Copy DocumentationCraft Interface Instructions Personnel Injury and Equipment Damage WarningsConsistent Terminology throughout Documentation Consistent Terminology between Documentation and PlatformRevision Numbering Revision HistoryOther interconnection requirements List of DocumentationEquipment lighting 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