ANSI TIA-758-B-2012 Customer-Owned Outside Plant Telecommunications Infrastructure Standard《客户所有的外部设备通讯基础设施标准》.pdf

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1、 TIA-758-B (Revision of TIA-758-A) March 2012Customer-Owned Outside Plant Telecommunications Infrastructure Standard ANSI/TIA-758-B-2012 APPROVED: MARCH 27, 2012 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between

2、manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not in any respect preclude any me

3、mber or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards and Publications are a

4、dopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This Standard does not purport to addres

5、s all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No

6、. SP-3-3339-RV2-1, formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.4 Subcommittee on Customer-Owned Outside Plant Telecommunications Infrastructure). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulev

7、ard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call IHS, USA and Canada (1-877-413-5187) International (303-397-2896) or search online at http:/www.tiaonline.org/standards/catalog/ All rig

8、hts reserved Printed in U.S.A. NOTICE OF COPYRIGHT This document is copyrighted by the TIA. Reproduction of these documents either in hard copy or soft copy (including posting on the web) is prohibited without copyright permission. For copyright permission to reproduce portions of this document, ple

9、ase contact the TIA Standards Department or go to the TIA website (www.tiaonline.org) for details on how to request permission. Details are located at: http:/www.tiaonline.org/standards/catalog/info.cfm#copyright or Telecommunications Industry Association Technology (b) there is no assurance that th

10、e Document will be approved by any Committee of TIA or any other body in its present or any other form; (c) the Document may be amended, modified or changed in the standards development or any editing process. The use or practice of contents of this Document may involve the use of intellectual prope

11、rty rights (“IPR”), including pending or issued patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR consisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from the holder thereof i

12、s requested, all in accordance with the Manual. TIA takes no position with reference to, and disclaims any obligation to investigate or inquire into, the scope or validity of any claims of IPR. TIA will neither be a party to discussions of any licensing terms or conditions, which are instead left to

13、 the parties involved, nor will TIA opine or judge whether proposed licensing terms or conditions are reasonable or non-discriminatory. TIA does not warrant or represent that procedures or practices suggested or provided in the Manual have been complied with as respects the Document or its contents.

14、 If the Document contains one or more Normative References to a document published by another organization (“other SSO”) engaged in the formulation, development or publication of standards (whether designated as a standard, specification, recommendation or otherwise), whether such reference consists

15、 of mandatory, alternate or optional elements (as defined in the TIA Engineering Manual, 4thedition) then (i) TIA disclaims any duty or obligation to search or investigate the records of any other SSO for IPR or letters of assurance relating to any such Normative Reference; (ii) TIAs policy of encou

16、ragement of voluntary disclosure (see Engineering Manual Section 6.5.1) of Essential Patent(s) and published pending patent applications shall apply; and (iii) Information as to claims of IPR in the records or publications of the other SSO shall not constitute identification to TIA of a claim of Ess

17、ential Patent(s) or published pending patent applications. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify, inspect, test or otherwise investigate products, designs or services or any claims of compliance with the contents of the Document. ALL WARRA

18、NTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NONINFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PROPERTY RIGHTS. TIA E

19、XPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION, OR THE SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE REFERRED TO IN THE

20、DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (IN

21、CLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMEN

22、TAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-758-B i Customer Owned Outside Plant Telecommunications Infrastructure Standard Table of Contents FOREWORD vii 1 SCOPE 1 2 NORMATIVE REFERENCES 1 3 DEFINITION OF TERMS,

23、ACRONYMS AND ABBREVIATIONS, AND UNITS OF MEASURE . 3 3.1 General . 3 3.2 Definitions . 3 3.3 Acronyms and abbreviations 6 3.4 Units of measure 8 3.5 Symbols 8 4 CABLING INFRASTRUCTURE . 9 4.1 General . 9 4.2 Customer owned OSP cabling infrastructure overview 9 4.2.1 Pathways and spaces 9 4.2.2 Custo

24、mer owned OSP cabling . 9 4.3 Topology . 12 4.3.1 Entrance point diversity 12 4.3.2 Entrance route diversity . 12 4.4 Recognized Cabling . 15 4.5 Choosing media 15 4.6 Bonding and grounding 15 4.7 Environmental Considerations 15 5 PATHWAYS AND SPACES 16 5.1 Pathways 16 5.1.1 Subsurface pathways . 16

25、 5.1.1.1 General 16 5.1.1.2 Conduit/duct 16 5.1.1.2.1 General . 16 5.1.1.2.2 Conduit Type 17 5.1.1.2.3 Lengths between pulling points 17 5.1.1.2.4 Bends . 17 5.1.1.2.5 Number of bends 17 5.1.1.2.6 Drain slope . 18 5.1.1.2.7 Innerduct . 18 5.1.1.2.8 Duct plugs . 18 5.1.1.2.9 Bridge crossings . 18 5.1

26、.1.3 Utility tunnels . 19 5.1.1.3.1 General . 19 5.1.1.3.2 Planning 19 5.1.2 Direct-buried 20 5.1.3 Aerial pathways 20 5.1.3.1 General 20 5.2 Spaces 20 5.2.1 Maintenance holes . 21 5.2.1.1 General 21 5.2.1.2 Location . 23 5.2.1.3 Type . 24 5.2.1.4 Sizing . 24 ANSI/TIA-758-B ii 5.2.1.5 Covers . 25 5.

27、2.2 Handholes 25 5.2.2.1 General 25 5.2.2.2 Location . 25 5.2.2.3 Sizing . 26 5.2.2.4 Covers . 26 5.2.3 Pedestals and cabinets 26 5.2.3.1 General 26 5.2.3.2 Ground level pedestals and cabinet criteria 26 5.2.3.2.1 Installation requirements 27 5.2.3.3 Pole or wall mounted cabinets 27 5.2.3.4 Environm

28、entally controlled cabinets 27 5.2.4 Vaults . 27 5.2.4.1 Vault criteria . 27 5.2.4.2 Installation requirements . 28 5.2.5 Entrance Facilities 28 5.2.5.1 General 28 5.2.5.2 Seismic considerations 28 5.2.5.3 Entrance location considerations 28 5.3 Entrance pathway facilities . 28 5.3.1 Underground 28

29、5.3.2 Direct-buried 29 5.3.3 Aerial 29 5.3.4 Tunnels 30 5.3.5 Wireless . 30 5.3.5.1 Line of sight . 30 5.3.5.2 Cable pathways . 30 5.3.5.3 Location . 30 5.3.5.4 Support structures . 30 5.3.5.4.1 General . 30 5.3.5.4.2 Towers 30 5.3.5.4.3 Non-penetrating wireless transmission/reception device mounts

30、30 5.3.5.4.4 Penetrating wireless transmission/reception device mounts . 31 5.3.5.4.5 Electrical design considerations . 31 5.4 Entrance point 31 5.4.1 General 31 5.4.2 Conduit entrance design guidelines . 31 5.4.2.1 Penetration and termination 31 5.4.2.2 Drainage 31 5.4.2.3 Gas, water and vermin 31

31、 5.4.2.4 Pull box 31 6 CABLING . 34 6.1 Twisted-pair cabling 34 6.1.1 Twisted-pair cable 34 6.1.1.1 General 34 6.1.1.2 Cable performance 34 6.1.1.3 Cable construction types . 34 6.1.1.4 Aerial (self-support and lashed) 34 6.1.1.5 Buried service wire 34 6.1.1.6 Aerial service wire . 35 6.1.1.7 Screen

32、ed cable (internally) 35 6.1.2 OSP connecting hardware for balanced twisted-pair cables . 35 6.1.2.1 General 35 6.1.2.2 Environmental compatibility . 35 6.1.2.3 Materials 35 ANSI/TIA-758-B iii 6.1.2.4 Transmission . 35 6.1.2.5 Terminal block requirements . 35 6.1.2.5.1 General . 35 6.1.2.5.2 Wire co

33、mpatibility . 36 6.1.2.5.3 Wire pair identification 36 6.1.2.5.4 Test points 36 6.1.2.5.5 Mounting . 36 6.1.2.5.6 Stub cable . 36 6.1.2.6 Cross-connect block requirements 36 6.1.2.6.1 General . 36 6.1.2.6.2 Wire compatibility . 36 6.1.2.6.3 Wire pair identification 36 6.1.2.6.4 Wire termination . 37

34、 6.1.2.6.5 Test points 37 6.1.2.6.6 Terminal density . 37 6.1.2.6.7 Wiring harness 37 6.1.2.7 Building entrance terminals . 37 6.1.2.7.1 General . 37 6.1.2.7.2 Non-protected terminals . 37 6.1.2.7.3 Protected terminals. 37 6.1.2.8 Splicing connectors . 37 6.1.2.8.1 General . 37 6.1.2.8.2 Materials .

35、 39 6.1.2.8.3 Transmission 39 6.1.2.8.4 Tensile strength 39 6.1.2.8.5 Insulation resistance . 39 6.1.2.8.6 Salt fog exposure 39 6.1.3 OSP twisted-pair cross-connect jumpers . 40 6.1.4 Additional installation requirements . 40 6.1.4.1 Cable splices for BBOSP 40 6.1.4.2 Bridge-taps 40 6.1.4.3 Binder g

36、roup integrity 40 6.1.4.4 Cable bend radius . 40 6.1.5 OSP twisted-pair testing 40 6.2 Coaxial cabling . 41 6.2.1 General 41 6.2.2 75 coaxial cable . 41 6.2.2.1 General 41 6.2.2.2 Cable performance 41 6.2.3 75 coaxial connecting hardware 41 6.2.3.1 General 41 6.2.4 75 coaxial cable installation requ

37、irements . 41 6.2.5 75 coaxial cable testing 41 6.3 Optical fiber cabling 42 6.3.1 General 42 6.3.2 Optical fiber cable performance . 42 6.3.3 Optical fiber cable construction types 42 6.3.3.1 Duct cables 42 6.3.3.2 Armored cables . 42 6.3.3.3 Aerial cables 42 6.3.3.3.1 Self-supporting cables 42 6.3

38、.3.4 Indoor/outdoor cables 43 6.3.3.5 Drop cables . 43 6.3.4 Optical fiber connecting hardware . 43 6.3.4.1 Optical fiber splicing 43 6.3.4.1.1 Splicing methods 43 ANSI/TIA-758-B iv 6.3.4.1.2 Attenuation . 43 6.3.4.1.3 Return loss . 43 6.3.4.1.4 Mechanical protection 43 6.3.4.2 Optical fiber connect

39、ors . 44 6.3.5 Cabling Practices . 44 6.3.6 Optical fiber patch cords and cross-connect jumpers 44 6.3.7 Optical fiber cable installation requirements 44 6.3.8 Optical fiber cable testing. 44 6.3.9 Optical fiber inside terminals 44 6.3.9.1 General 44 6.3.9.2 Fiber storage and organizing housings . 4

40、4 6.3.9.3 Fiber distribution units utilizing optical fiber connectors 44 6.3.9.4 Fiber distribution units utilizing fiber splicing techniques 45 6.3.9.5 Fiber splice module housing 45 6.4 Pressurization of air-core twisted pair cables . 45 6.4.1 General 45 7 CABLING ENCLOSURES . 46 7.1 General . 46

41、7.2 Materials . 46 7.3 Copper twisted-pair splice closures 46 7.3.1 General 46 7.3.2 Common test for copper closures 46 7.3.3 Aerial copper closures/terminals 46 7.3.3.1 Application . 47 7.3.3.2 Special testing . 47 7.3.4 Buried service wire copper closures 47 7.3.4.1 Application . 47 7.3.4.2 Specia

42、l tests 48 7.3.5 Buried/underground/vault copper splice closures 48 7.3.5.1 Splice configurations . 48 7.3.5.2 Closure housing. 48 7.3.5.3 Installation requirements . 48 7.3.5.4 Special tests 49 7.4 Optical fiber 49 7.4.1 General 49 7.4.2 Optical fiber splice closure . 49 7.4.2.1 General 49 7.4.2.2

43、Application . 50 7.4.2.3 Criteria . 51 7.4.2.3.1 Splice configurations 51 7.4.2.3.2 Common tests 51 7.4.2.3.3 Installation requirements 51 7.4.2.4 Free-breathing optical fiber closures . 52 7.4.2.4.1 Special testing 52 7.4.2.4.2 Sealed aerial closures 52 7.4.2.4.3 Vented aerial closures 52 7.4.2.5 U

44、nderground closures . 52 7.4.2.6 Direct-buried closures . 52 7.4.2.6.1 Special tests . 53 7.4.2.7 Shield isolation/grounding closure. 53 7.4.2.8 Pedestal optical fiber closure 53 7.4.2.8.1 Special tests . 53 ANSI/TIA-758-B v ANNEX A (NORMATIVE) OSP Symbols 54 A.1 General . 54 ANNEX B (NORMATIVE) Phy

45、sical location and protection of below-ground cable plant 59 B.1 General . 59 B.2 Requirements . 59 B.2.1 Cable installation planning . 59 B.2.2 Location 60 B.2.2.1 Depth of plant 60 B.2.2.2 Joint construction 60 B.2.2.3 Separations from foreign structures 60 B.2.2.4 Permanent markings . 61 B.2.2.4.

46、1 Uniform Color Code . 61 B.2.3 Riser poles . 62 B.2.4 Building entrances . 62 B.2.5 Underwater cable crossings 62 B.2.6 Railroad crossings . 62 B.2.7 Bridge crossings 63 B.2.8 Tunnel installations 63 B.2.9 Highway accommodations . 64 B.2.10 Excavating responsibilities and procedures. 64 B.2.10.1 Da

47、mage prevention laws . 64 B.2.10.1.1 Regulations 64 B.2.10.1.2 Call before you dig responsibilities 64 B.2.10.1.3 One Call Bureau 65 B.2.10.2 Other information sources . 65 B.2.10.2.1 Central Registries 65 B.2.10.2.2 Other records and references 65 B.2.10.3 Recommended procedures for excavators . 65

48、 B.2.10.3.1 Notification of facility owners 65 B.2.10.3.2 Excavation marking 66 B.2.10.3.3 Commencement of work 66 B.2.10.3.4 Protection of marking . 66 B.2.10.3.5 Use of nondestructive excavation methods . 66 B.2.10.3.6 Backfilling . 66 B.2.10.3.7 Damaged facilities 66 B.2.10.3.8 Unknown or unmarke

49、d facilities . 66 B.2.10.3.9 Codes and regulations . 66 B.2.10.4 Recommended procedures for facility owners 66 B.2.10.4.1 Central registries 66 B.2.10.4.2 Marking of facilities 67 B.2.10.4.3 Marking of owners facilities 67 B.2.10.4.4 Marking exceptions 67 B.2.10.4.5 Offset staking and marking 67 B.2.10.4.6 Special situations . 67 B.2.10.4.7 Call for assistance 67 B.2.10.4.8 Marking materials . 67 B.2.11 Damage restoration . 67 B.3 As-built facility location record . 69 ANNEX C (INFORMATIVE) BIBLIOGRAPHY 70 ANSI/TIA-758-B vi List of Tables Table 1 Areas of

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