AT&T 76450 manual Fiber Attenuators

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Common Systems Connection Standards

AT&T Services, Inc

Date: August 31, 2007

ATT-TP-76450, Issue 9

4.11Housekeeping/Overhead Alarm Inputs

All network elements that will be deployed in a non-central office environment, such as RT, CEV, Cabinet, etc., that are intended to carry local power and environmental alarms to a surveillance center must have at minimum sixteen (16) housekeeping/overhead user definable discrete alarm inputs. Although not required, an Ethernet/DCC access connection to the overhead for this purpose is strongly desired.

5 Fiber

All Fiber Optic Standards contained herein are applicable to any manufacturer’s product that can be administered or managed by AT&T personnel.

5.1Fiber Optic Cable

Fiber Optic cables/jumpers shall adhere to BELLCORE Standards as defined in GR-409, Generic Requirements for Premises Fiber Optic Cable.

5.2Optical Cable/Jumpers & Connectors

Fiber Cross Connect Cables/Jumpers and Connectors shall be SingleMode.

5.3 Fiber Attenuators

Attenuators shall be for SingleMode Facilities.

5.4Fiber Connector Boots

Fiber connector boots shall be straight and not angled.

5.5Fiber Minimum Bend Radius

The minimum fiber bend radius shall be 1.5-inches or 10 times the cable diameter at any point whichever is greater. Network equipment shall provide fiber management facilities that maintain a minimum 1.5 inch bend radius from the connector until handoff to the bay or cabinet fiber management facilities. See Figure 5-1

5.6Maximum Fiber Connector length

The maximum fiber connector length (including boot) away from the mating connector housing shall not exceed 2.25 inches. See Figure 5-1

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Contents Canceled/Superseded Doc N/A Requirements PurposeScope Pre-assembled versus Field Assembled Network EquipmentATT-TP-76450 Internet Web Site Product Evaluation Process Additional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 Drain1 16 AWG Stranded Power Cable and Larger Location of Power TerminationsTwo Hole Connections Visual Power Alarms and Status Indicator 3 18 AWG Power Cable and SmallerSize conductor Acceptable termination Associated Listings Fusing of Capacitors Power Distribution DeliveryDirect Bdfb Power Delivery NE Integrated Power DistributionIndividually Mounted PDU Standards Synchronization/Timing Standards Termination of timing leadsClock output lead cabling Redundancy of timing inputs Alarms 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 CardsInstructions Appendix a ATT-TP-76450 Checklist Instructions and ProcessProcess 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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