AT&T 76450 manual Location of Power Terminations, 1 16 AWG Stranded Power Cable and Larger

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Common Systems Connection Standards

AT&T Services, Inc

Date: August 31, 2007

ATT-TP-76450, Issue 9

This section describes the various acceptable DC power connectors and connections that are approved for use within AT&T. See Table 2-1 for a classification of acceptable power connections based on cable termination.

2.2.1 Location of Power Terminations

2.2.1.1 Rear Power Terminations

It is preferred that power terminations be located on the rear of the panel.

2.2.1.2 Front Power Terminations.

NE designed as “front access only” (no rear access allowed) shall have the power terminations on the front of the NE.

All power terminations shall be mounted in the top half of the bay. All power connections shall be clearly labeled and fully protected with a non-metallic, non-flammable cover. All power leads entering the front or side shall be protected from accidental bumps, pulls and hits.

2.3CONNECTORS

Connectors used to attach the product to external power cabling shall conform to the following requirements:

2.3.1 16 AWG Stranded Power Cable and Larger

For applications where the size of wire supplying or distributing power to/from the equipment is 16 AWG stranded power cable or larger, pressure crimped connectors shall be used on the power cable creating a ring type termination.

2.3.2 Two Hole Connections

Power input terminations that will accept # 8 AWG connector terminations shall use dual threaded post (stud) termination able to accept the appropriate two-hole crimp connection. The two post termination may be either 5/8” or ½ “on centers.

Equipment surface terminations shall accept crimp connections that meet the following specifications:

oUL486A Wire Connectors and Soldering Lugs for Use with Copper o UL467 Grounding and Bonding Equipment Conductors

o UL 486C Splicing Wire Connectors

o SAE-AS25036 (Insulated Copper Ring Crimped Terminal - Dimensions) o SAE-AS7928 (Copper Ring Crimped Terminal - Specifications)

Equipment submitted for approval should provide a UL listed (power) termination strip designed and designated as “field wireable” to insure product compliance with the UL listing of the

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Contents Canceled/Superseded Doc N/A Pre-assembled versus Field Assembled Network Equipment RequirementsPurpose ScopeAdditional AT&T Requirements ATT-TP-76450 Internet Web Site Product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 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 Power Distribution Delivery Fusing of CapacitorsDirect Bdfb Power Delivery NE Integrated Power DistributionIndividually Mounted PDU 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 lightingInstructions Appendix a ATT-TP-76450 Checklist Instructions and ProcessProcess 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
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