TIA-758-A-2004 Customer-owned Outside Plant Telecommunications Infrastructure Standard《顾客所有的外部设备电信基础设施标准》.pdf

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1、 ANSI/TIA-758-A-2004 Approved: May 5, 2004 TIA STANDARD Customer-owned Outside Plant Telecommunications Infrastructure Standard TIA-758-A (Revision of TIA/EIA-758 and TIA/EIA-758-1) AUGUST 2004 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with t

2、he Electronic Industries Alliance Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed to serve the public interest thr

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7、 before its use. (From Standards Proposal No. 3-3339-RV1-A, formulated under the cognizance of the TIA TR-42.4 Subcommittee Customer-Owned Outside Plant Telecommunications Infrastructure) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2004 Standards and Technology Department 2500 Wilson Boulev

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21、ion Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA -758-A CUSTOMER-OWNED OUTSIDE PLANT TELECOMMUNICATIONS INFRASTRUCTURE STANDARD Table of Contents FOREWORD .VI INTRODUCTION 1 GENERAL1 PURPOSE1 MANDATORY AND ADVISORY TERMS

22、 .1 METRIC EQUIVALENTS OF US CUSTOMARY UNITS1 LIFE OF THE STANDARD .1 1 SCOPE2 1.1 APPLICABILITY2 1.2 CUSTOMER-OWNED OSP CABLING INFRASTRUCTURE 2 1.2.1 Pathways and spaces.2 1.2.2 Customer-owned OSP cabling .2 1.3 NORMATIVE REFERENCES .5 2 DEFINITIONS, ABBREVIATIONS AND ACRONYMS, WEIGHTS AND MEASURE

23、S, SYMBOLS8 2.1 DEFINITIONS.8 2.2 ABBREVIATIONS AND ACRONYMS .12 2.3 WEIGHTS AND MEASURES .13 2.4 SYMBOLS .13 3 CABLING INFRASTRUCTURE14 3.1 GENERAL .14 3.2 TOPOLOGY.14 3.3 RECOGNIZED CABLES .17 3.4 CHOOSING MEDIA .17 3.5 BONDING AND GROUNDING17 4 PATHWAYS AND SPACES .18 4.1 PATHWAYS.18 4.1.1 Subsur

24、face pathways18 4.1.1.1 General 18 4.1.1.2 Conduit/duct.18 4.1.1.2.1 General 18 4.1.1.2.2 Conduit type.18 4.1.1.2.3 Lengths between pulling points .19 4.1.1.2.4 Bends.19 4.1.1.2.5 Number of bends .19 4.1.1.2.6 Drain slope.19 4.1.1.2.7 Innerduct19 4.1.1.2.8 Duct plugs20 4.1.1.2.9 Bridge crossings 20

25、4.1.1.3 Utility tunnels .20 4.1.1.3.1 General 20 4.1.1.3.2 Planning.21 4.1.2 Direct-buried .21 4.1.3 Aerial pathways.22 i Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.1.3.1

26、 General 22 4.2 SPACES. 22 4.2.1 Maintenance holes . 22 4.2.1.1 General 22 4.2.1.2 Location. 24 4.2.1.3 Type 26 4.2.1.4 Sizing. 26 4.2.1.5 Covers. 26 4.2.2 Handholes 26 4.2.2.1 General 26 4.2.2.2 Location. 27 4.2.2.3 Sizing. 27 4.2.2.4 Covers. 28 4.2.3 Pedestals and cabinets 28 4.2.3.1 General 28 4.

27、2.3.2 Ground level pedestals and cabinet criteria 28 4.2.3.2.1 Installation requirements . 28 4.2.3.3 Pole or wall mounted cabinets 29 4.2.3.4 Environmentally controlled cabinets . 29 4.2.4 Vaults 29 4.2.4.1 Vault criteria 29 4.2.4.2 Installation requirements. 30 5 CABLING 31 5.1 TWISTED-PAIR CABLIN

28、G 31 5.1.1 Twisted-pair cable 31 5.1.1.1 General 31 5.1.1.2 Cable performance 31 5.1.1.3 Cable construction types. 31 5.1.1.4 Aerial (self-support and lashed) 31 5.1.1.5 Buried service wire 32 5.1.1.6 Aerial service wire . 32 5.1.1.7 Screened cable (internally) . 32 5.1.2 OSP twisted-pair connecting

29、 hardware 32 5.1.2.1 General 32 5.1.2.2 Environmental compatibility 32 5.1.2.3 Materials 32 5.1.2.4 Transmission. 32 5.1.2.5 Terminal block requirements. 33 5.1.2.5.1 General 33 5.1.2.5.2 Wire compatibility 33 5.1.2.5.3 Wire pair identification. 33 5.1.2.5.4 Test points. 33 5.1.2.5.5 Mounting 33 5.1

30、.2.5.6 Stub cable . 33 5.1.2.6 Cross-connect block requirements . 33 5.1.2.6.1 General 33 5.1.2.6.2 Wire compatibility 34 5.1.2.6.3 Wire pair identification. 34 5.1.2.6.4 Wire termination 34 5.1.2.6.5 Test points. 34 5.1.2.6.6 Terminal density 34 5.1.2.6.7 Wiring harness 34 5.1.2.7 Building entrance

31、 terminals. 34 5.1.2.7.1 General 34 5.1.2.7.2 Non-protected terminals 34 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA -758-A 5.1.2.7.3 Protected terminals34 5.1.2.8 Splic

32、ing connectors35 5.1.2.8.1 General 35 5.1.2.8.2 Materials 36 5.1.2.8.3 Transmission .36 5.1.2.8.4 Tensile strength .37 5.1.2.8.5 Insulation resistance37 5.1.2.8.6 Salt fog exposure.37 5.1.3 OSP twisted-pair cross-connect jumpers37 5.1.4 Additional installation requirements37 5.1.4.1 Cable splices fo

33、r BBOSP.37 5.1.4.2 Bridge-taps 38 5.1.4.3 Binder group integrity 38 5.1.4.4 Cable bend radius38 5.1.5 OSP twisted-pair testing .38 5.2 COAXIAL CABLING.38 5.2.1 General .38 5.2.2 75 coaxial cable 38 5.2.2.1 General 38 5.2.2.2 Cable performance 38 5.2.3 75 coaxial connecting hardware .39 5.2.3.1 Gener

34、al 39 5.2.4 75 coaxial cable installation requirements 39 5.2.5 75 coaxial cable testing.39 5.3 OPTICAL FIBER CABLING39 5.3.1 General .39 5.3.2 Optical fiber cable performance39 5.3.3 Optical fiber cable construction types.39 5.3.3.1 Duct cables40 5.3.3.2 Armored cables40 5.3.3.3 Aerial cables 40 5.

35、3.3.3.1 Self-supporting cables .40 5.3.3.3.1.1 Figure 8 cables .40 5.3.3.3.1.2 All-dielectric, self-supporting cables .40 5.3.3.4 Indoor/outdoor cables40 5.3.3.5 Drop cables41 5.3.4 Optical fiber connecting hardware 41 5.3.4.1 Optical fiber splicing.41 5.3.4.1.1 Splicing methods .41 5.3.4.1.1.1 Fusi

36、on splicing41 5.3.4.1.1.2 Mechanical splicing.41 5.3.4.1.2 Attenuation.41 5.3.4.1.3 Return loss.41 5.3.4.1.4 Mechanical protection42 5.3.4.2 Optical fiber connectors.42 5.3.5 Cabling Practices42 5.3.6 Optical fiber patch cords and cross-connect jumpers.43 5.3.7 Optical fiber cable installation requi

37、rements.43 5.3.8 Optical fiber cable testing .43 5.3.8.1 OTDR testing.43 5.3.9 Optical fiber inside terminals.43 5.3.9.1 General 43 5.3.9.2 Fiber storage and organizing housings .43 5.3.9.3 Fiber distribution units utilizing optical fiber connectors 43 5.3.9.4 Fiber distribution units utilizing fibe

38、r splicing techniques.44 5.3.9.5 Fiber splice module housing44 iii Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5.4 PRESSURIZATION OF AIR-CORE CABLES. 44 5.4.1 General. 44 6

39、CABLING HARDWARE . 45 6.1 GENERAL. 45 6.2 MATERIALS 45 6.3 COPPER TWISTED-PAIR SPLICE CLOSURES 45 6.3.1 General. 45 6.3.2 Common test for copper closures 45 6.3.3 Aerial copper closures/terminals 46 6.3.3.1 Application. 46 6.3.3.2 Special testing. 46 6.3.4 Buried service wire copper closures. 47 6.3

40、.4.1 Application. 47 6.3.4.2 Special tests 47 6.3.5 Buried/underground/vault copper splice closures 47 6.3.5.1 Splice configurations. 47 6.3.5.2 Closure housing 48 6.3.5.3 Installation requirements. 48 6.3.5.4 Special tests 48 6.4 OPTICAL FIBER. 48 6.4.1 General. 48 6.4.2 Optical fiber splice closur

41、e . 49 6.4.2.1 General 49 6.4.2.2 Application. 49 6.4.2.3 Criteria. 50 6.4.2.3.1 Splice configurations . 50 6.4.2.3.2 Common tests . 51 6.4.2.3.3 Installation requirements . 51 6.4.2.4 Free-breathing optical fiber closures. 51 6.4.2.4.1 Special testing. 51 6.4.2.4.2 Sealed aerial closures. 52 6.4.2.

42、4.3 Vented aerial closures. 52 6.4.2.5 Underground closures. 52 6.4.2.6 Direct-buried closures . 52 6.4.2.6.1 Special tests 52 6.4.2.7 Shield isolation/grounding closure 53 6.4.2.8 Pedestal optical fiber closure 53 6.4.2.8.1 Special tests 53 ANNEX A (NORMATIVE) OSP SYMBOLS 54 A.1 GENERAL. 54 ANNEX B

43、 (INFORMATIVE) TYPICAL OSP CABLING LENGTHS FOR SPECIFIC APPLICATIONS. 60 B.1 GENERAL. 60 ANNEX C (INFORMATIVE) OSP OPTICAL FIBER CABLING PRACTICES 64 ANNEX D (INFORMATIVE) BIBLIOGRAPHY AND REFERENCES . 68 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for

44、 ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA -758-A List of Tables Table 1 Areas of OSP and BBOSP cabling applications 31 Table 2 Test sequence for twisted-pair splicing connectors .36 Table 3 Optical fiber cable placement recommendations .40 Table 4 References for

45、 copper closures common test methods.45 Table 5 References for aerial copper closures/terminals test methods 46 Table 6 References for buried service wire copper closures test methods 47 Table 7 References for buried/underground/vault copper splice closures test methods 48 Table 8 References for opt

46、ical fiber closures common test methods .51 Table 9 References for free-breathing optical fiber splice closures test methods 52 Table 10 References for direct-buried optical fiber splice closures test methods.53 Table 11 References for pedestal optical fiber closure test methods .53 Table 12 Typical

47、 OSP twisted-pair cable lengths for specific applications .61 Table 13 Supportable distances and channel attenuation for optical fiber applications by fiber type.62 List of Figures Figure 1 Typical customer-owned OSP elements.3 Figure 2 Typical customer-owned OSP link 4 Figure 3 Example of campus st

48、ar topology.15 Figure 4 Example campus/building cable topology.16 Figure 5 Example of innerduct.20 Figure 6 Typical utility tunnel section 21 Figure 7 Maintenance hole24 Figure 8 Maintenance hole placement at an intersection25 Figure 9 Handhole .27 Figure 10 Discrete and multiple pair connectors.35

49、Figure 11 Example in-line and butt splice .37 Figure 12 Example of a mechanical splice41 Figure 13 Position A and B configuration on a 568SC outlet/connector and adapter.42 Figure 14 Typical optical fiber splice closure used in the OSP .49 Figure 15 Outside plant fiber optic cross-over configuration.64 Figure 16 Building termination of OSP cable and interconnection to e