ATT-TP-76450 Common Systems Equipment Interconnection Standards for the ATT Local Exchange Companies and AT&T Corporation Abstract Presented in this document are the Common Systems Equipment Interconnection Standards for equipment placement and interconnection in the ATT LOCAL EXCHANGE companies Network.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 GENERAL 1.1 Requirements 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.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 If the product uses various components that are interconnected together, document will be applicable for interconnection between the various external components and cabling in addition to stand-alone Common Systems components that may have been standardized with other products within the ATT Local Exchange companies.
Common Systems Connection Standards Date: August 31, 2007 1.8 AT&T Services, Inc ATT-TP-76450, Issue 9 • TP 76300, AT&T Installation Requirements • TP 76400, AT&T Design Engineering Requirements Adherence to AT&T Standard Suppliers Within the Common Systems Checklist, standard corporate providers of the product are listed as applicable. Selections of this product are performed through AT&T Services Inc. NP&E on behalf of the entire AT&T Enterprise.
Common Systems Connection Standards Date: August 31, 2007 2 2.1 AT&T Services, Inc ATT-TP-76450, Issue 9 DC Power Interconnection Standards GENERAL 2.1.1 Nominal -48v DC Nominal –48v DC is the standard platform for power delivery to any Network Element (NE). Manufacturers should comply with this requirement by providing their equipment internally with various inverters and converters to meet this condition.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 2.1.3 Battery Return Conductor 2.1.3.1 Each power feeder shall have its own battery return conductor. This design concept shall also carry through directly to each piece of equipment. 2.1.3.2 Equipment configured with the battery return and chassis ground bonded together shall not be deployed in the network. 2.1.3.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc 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.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 product. This termination or barrier strip should be able to accommodate a ring lug connectors that comply with the UL, CSA and Mil Spec listings. 2.3.3 18 AWG Power Cable and Smaller For applications where the size of wire supplying power to the equipment is 18 AWG power cable or smaller, mechanical connectors may be used.
Common Systems Connection Standards Date: August 31, 2007 2.5 AT&T Services, Inc ATT-TP-76450, Issue 9 Fusing of Capacitors Equipment incorporating the use of power distribution apparatus which uses capacitors shall be fused to protect the power distribution bus from a shorted capacitor. Fuse and protection information must be provided in the supplier's response documentation to be in compliance with this item.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Circuit Breakers - Only thermal magnetic and magnetic type DC circuit breakers are acceptable. Circuit breakers should adhere to all applicable UL and ANSI standards. DC Circuit breakers that are labeled 100% are full load rated and may be sized at the same capacity as the List 2X drain.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc 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.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 3 Synchronization/Timing Standards The Building Integrated Timing Supply (BITS) concept is the method of providing Phase and Frequency synchronization. The BITS plan details that each office have one Primary Reference Source (PRS)/(Stratum-1) traceable office master clock called the BITS.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 office BITS, with primary and secondary DS1 (or Composite Clock) reference signals from separate T1 (DS1) or Composite Clock (CC) output cards, with odd-even slot, alternate group assignments. The ability to access, test and validate timing is critical to maintaining and administering a sync network.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Footnote: The term "Network Element" is used within this document to refer to any and all equipment other than switching equipment deployed in a CO or remote location. This would include, but is not limited to transport, conditioning, power and testing equipment as well as environmental and building operations sensors. 4.
Common Systems Connection Standards Date: August 31, 2007 (TBOS/TABS) E2A Discrete AT&T Services, Inc ATT-TP-76450, Issue 9 Least Preferred Footnote: A discrete telemetry interface may be provided, on an optional basis, in addition to higher level interfaces, to provide a summary of alarm and status information for remote surveillance. 4.6 Alarm Interconnection: Each NE in a bay shall produce its own unique set of alarm outputs.
Common Systems Connection Standards Date: August 31, 2007 4.11 AT&T Services, Inc ATT-TP-76450, Issue 9 Housekeeping/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.
Common Systems Connection Standards Date: August 31, 2007 5.7 AT&T Services, Inc ATT-TP-76450, Issue 9 Minimum Distance Between Connector Housing and 90 Degree Bend Minimum Fiber distance away from a connector housing to bend 90 degrees shall be 3.75inches. See Figure 5–1. Figure 5-1 3.75" m ia D 0" 3. 1. 5" R ad i us 2.25" e et r 1.5" Radius 5.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 5.13 Maximum optical power levels Optical aggregate power level must not exceed +16.8 dBm optical power level at any connector (Hazard Level 3b). If the product exceeds this, there must be an embedded (to the network equipment) solution to protect the human exposure for both TXMT and RCV including the Automatic Power Reduction (APR) potential solutions. 5.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 6.4 DS1 Cross-Connect Wire DS1 Cross-Connect Wire (Violet/Red) shall be special high twist Wire to mitigate spectrum interference with DSL Wire (Violet/Blue). 6.5 DSL Cross-Connect Wire DSL Cross-Connect Wire (Violet/Blue) with Different turns than DS1(Violet/Red), used to mitigate spectrum interference. 6.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc 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(RiserBetween 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.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Panels that use twisted pair jumper/cables less than 25 pair groups will be required to have a cable tray or rings. Do not place jumpers without a protection tray. 6.18 Tie Bar Panels that use cables of 25 pair and above shall have a tie bar affixed for tie wrapping. Do not place cables without a tie bar on panel backplanes. 6.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Documentation must be provided in both PDF and HTML format on a CD that is fully indexed and fully searchable. 7.2 Hard Copy Documentation Documentation must be furnished in paper copy on request. 7.3 Craft Interface Instructions Documents must provide step by step instructions for each procedure using Craft GUI, EMS GUI, and TL1 (preferred) or equivalent commands. Note: Items 7.4 and 7.
Common Systems Connection Standards Date: August 31, 2007 7.9 AT&T Services, Inc ATT-TP-76450, Issue 9 Consistent Terminology throughout Documentation Per GR-454-CORE, Section 2.4, terminology must remain consistent throughout all documentation for a platform. Example: Maintenance Mode must remain Maintenance Mode and not vary to Maintenance Condition or Maintenance State 7.10 Consistent Terminology between Documentation and Platform. Per GR-454-CORE, Section 2.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Note: The expectation is that a 2-3 page extraction from a larger manual will be submitted as evidence for each of the tasks above. Based on this information, AT&T may elect to conduct a more thorough review by accessing the information as listed below 7.13.2 List of Documentation Forward a list of all documentation that will be provided to AT&T for the planned deployment of the equipment (e.g.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 9 APPENDIX A – ATT-TP-76450 Checklist Instructions and Process 9.1 Purpose The purpose of this appendix is to assist product suppliers with preparing and furnishing equipment documentation to the company representative for product evaluation purposes. 9.2 Scope An evaluation reviews a product against all applicable requirements based on the equipment and its intended use in the network.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Footnote references for requirements marked “N/A” for not applicable or “Part” for partially compliant will be reviewed by the AT&T SME for that requirement. The SME may initiate contact with the vendor for further clarification and/or resolution. When compliance/resolution to all requirements is met, the TP 76450 SPOC will notify the AT&T Product Manager for the equipment that it is compliant.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Appendix B – ATT-TP 76450 Checklist Manufacturer:________________________________ Date: ______________________ Equipment Name/Model Number, etc.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 3.2 Primary and Secondary Interfaces 3.3 Clock Output Lead Cabling Redundancy of timing inputs 3.4 3.5 Output Card Exhaustion 4 ALARM STANDARDS 4.1 Equipment surveillance is performed at two levels, remote surveillance and local surveillance 4.2 Local and Telemetry Alarms 4.3 Separation of Local Alarms 4.4 Audible Alarm Cut-off (ACO) 4.5 Telemetry Alarm Protocols 4.6 Alarm Interconnection 4.
Common Systems Connection Standards Date: August 31, 2007 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 10 APPENDIX C - References ATT TP documents may be obtained on the AT&T Technical Publication and Nebs Web site. Telcordia documents may be obtained directly from Telcordia Technologies Inc.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 11 Appendix D - ATT Contact List Wing Eng, Area Manager-Common Systems Standards, DSX, Copper Cable Standards (925) 823-4616, E-Mail: we2583@camail.att.com Doug Florence, Area Manager- Common Systems Standards, New Product Integration (925) 867-9951, E-Mail: df1538@camail.att.com Ed Granger, Area Manager- Common Systems Standards Power Pro Support (203) 553-8189, E-Mail: eg1724@ctmail.att.
Common Systems Connection Standards Date: August 31, 2007 AT&T Services, Inc ATT-TP-76450, Issue 9 Copyright ©2004 – 2006, AT&T Knowledge Ventures All rights reserved Page 32
