1、 TIA-568.4-D June 2017 Broadband Coaxial Cabling and Components Standard ANSI/TIA-568.4-D-2017 APPROVED: JUNE 27, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating
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23、-D i Broadband Coaxial Cabling and Components Standard TABLE OF CONTENTS 1 SCOPE 1 2 NORMATIVE REFERENCES . 1 3 DEFINITIONS, ABBREVIATIONS AND ACRONYMS, UNITS OF MEASURE 2 3.1 General 2 3.2 Definitions of terms 2 3.3 Abbreviations and acronyms . 4 3.4 Units of measure . 4 4 TOPOLOGY 5 4.1 Star topol
24、ogy . 6 4.2 Bus and star topology . 7 5 CABLING . 8 5.1 Recognized cables 8 5.2 Maximum cable length 8 5.3 Cable termination 8 5.3.1 Equipment outlet . 8 5.3.2 Cable termination at Distributor A, Distributor B or Distributor C 8 6 SERIES 6 AND SERIES 11 LINK PERFORMANCE 9 6.1 General 9 6.2 Test link
25、 . 9 6.3 Insertion loss . 10 6.4 Return loss 12 6.5 Screening attenuation . 12 7 COAXIAL CABLE, CORDS, AND CONNECTING HARDWARE 13 7.1 Coaxial cable . 13 7.1.1 General 13 7.1.2 Insertion loss . 13 7.1.3 Return loss 15 7.1.4 Screening attenuation . 15 7.1.5 Transfer impedance 15 7.2 Coaxial equipment
26、and patch cords 16 7.3 Coaxial connecting hardware 16 7.3.1 F-type connector . 16 7.3.1.1 Physical . 16 7.3.1.1.1 Male . 16 7.3.1.1.2 Female 16 7.3.1.2 Electrical 16 7.3.2 5/8-24 connector . 16 7.3.3 75-ohm BNC connector . 16 7.4 Signal splitters . 17 ANSI/TIA-568.4-D ii 7.5 Filters and traps . 17 7
27、.6 Inline splices 17 7.7 Ground blocks . 17 7.8 Inline attenuators . 17 7.9 Signal amplifiers 17 7.10 Impedance matching termination devices . 17 8 FIELD TEST REQUIREMENTS 18 8.1 General 18 8.2 Visual inspection . 18 8.3 Verification . 18 8.4 Qualification and performance characterization 18 8.4.1 Q
28、ualification 18 8.4.2 Performance characterization . 18 Annex A (informative) Background information for coaxial cabling requirements 19 A.1 General 19 A.2 Coaxial cable . 19 A.2.1 Insertion loss . 19 A.2.2 Return loss 22 A.2.3 Screening attenuation . 22 A.2.4 Transfer impedance 22 A.3 Connecting ha
29、rdware 22 A.3.1 Insertion loss . 22 A.3.2 Return loss 22 A.3.3 Screening attenuation . 22 A.4 Coaxial cabling 23 A.4.1 Insertion loss . 23 A.4.2 Return loss 23 A.4.3 Screening attenuation . 23 Annex B (informative) Multipoint bus 24 Annex C (informative) Bibliography and references . 25 ANSI/TIA-568
30、.4-D iii LIST OF FIGURES Figure 1 - Illustrative relationship between the TIA-568 Series and other relevant TIA standards v Figure 2 Elements of generic cabling topology 5 Figure 3 - Example of a star topology . 6 Figure 4 - Example of bus and star topology 7 Figure 5 - Coaxial equipment outlet 8 Fi
31、gure 6 - Test link for Cabling Subsystem 1 9 Figure 7 - Test link for Cabling Subsystem 2 and Cabling Subsystem 3 9 Figure 8 - Comparison of continuous versus discrete insertion loss values, Series 6 cable 21 Figure 9 - Comparison of continuous versus discrete insertion loss values, Series 11 cable
32、21 Figure 10 - Example of multipoint bus 24 LIST OF TABLES Table 1 - Coaxial cabling insertion loss 10 Table 2 - Maximum insertion loss of coaxial cabling 11 Table 3 - Return loss of coaxial cabling 12 Table 4 - Screening attenuation of coaxial cabling . 12 Table 5 - Coaxial cable insertion loss, fo
33、r a length of 100 m (328 ft) 13 Table 6 - Maximum coaxial cable insertion loss, for a length of 100 m (328 ft) 14 Table 7 - Return loss of coaxial cable . 15 Table 8 - Screening attenuation of coaxial cable 15 Table 9 - Transfer impedance of coaxial cable . 15 Table 10 - Maximum coaxial cable insert
34、ion loss (for information only) . 20 Table 11- Minimum connecting hardware return loss . 22 Table 12 - Minimum connecting hardware screening attenuation 22 ANSI/TIA-568.4-D iv FOREWORD (This foreword is not considered part of this Standard.) This Standard was developed by TIA Subcommittee TR-42.7. A
35、pproval of this Standard This Standard was approved by TIA Subcommittee TR-42.7, TIA Engineering Committee TR-42, and the American National Standards Institute (ANSI). ANSI/TIA reviews standards every 5 years. At that time, standards are reaffirmed, withdrawn, or revised according to the submitted u
36、pdates. Updates to be included in the next revision should be sent to the committee chair or to ANSI/TIA. Contributing organizations More than 30 organizations within the telecommunications industry contributed their expertise to the development of this Standard (including manufacturers, consultants
37、, end users, and other organizations). Documents superseded This standard replaces ANSI/TIA-568-C.4 dated July, 2011. Significant technical changes from the previous edition Updates to references Relationship to other TIA standards and documents The following are related standards regarding various
38、aspects of structured cabling that were developed and are maintained by Engineering Committee TIA TR-42. An illustrative diagram of the ANSI/TIA-568-D Series relationship to other relevant TIA standards is given in figure 1 Generic Telecommunications Cabling for Customer Premises (ANSI/TIA-568.0-D)
39、Commercial Building Telecommunications Cabling Standard (ANSI/TIA-568.1-D) Balanced Twisted-Pair Telecommunications Cabling and Components Standard (ANSI/TIA-568-C.2) Optical Fiber Cabling Components Standard (ANSI/TIA-568.3-D) Commercial Building Standard for Telecommunications Pathways and Spaces
40、(TIA-569-D) Residential Telecommunications Infrastructure Standard (ANSI/TIA-570-C) Administration Standard for Commercial Telecommunications Infrastructure (ANSI/TIA-606-C) Generic Telecommunications Bonding and Grounding (Earthing) for Customer Premises (ANSI/TIA-607-C) Customer-Owned Outside Plan
41、t Telecommunications Infrastructure Standard (ANSI/TIA-758-B) Building Automation Systems Cabling Standard for Commercial Buildings (ANSI/TIA-862-B) Telecommunications Infrastructure Standard for Data Centers (ANSI/TIA-942-B) Telecommunications Infrastructure Standard for Industrial Premises (ANSI/T
42、IA-1005-A) Figure 1 shows the schematic relationship between the ANSI/TIA-568-D series and other relevant TIA standards. ANSI/TIA-568.4-D v C o m m o n S t a n d a r d sA N S I / T I A - 5 6 8 . 0( G e n e r i c )P r e m i s e s S t a n d a r d sA N S I / T I A - 5 6 8 . 1( C o m m e r c i a l )A N
43、S I / T I A - 5 6 8 . 2( B a l a n c e d t w i s t e d -p a i r )A N S I / T I A - 5 6 9( P a t h w a y s a n d s p a c e s )A N S I / T I A - 5 7 0( R e s i d e n t i a l )C a b l i n g mandatory and advisory. The mandatory requirements are designated by the word “shall“; advisory requirements are
44、designated by the words “should”, “may“, or “desirable“ which are used interchangeably in this Standard. Mandatory criteria generally apply to protection, performance, administration and compatibility; they specify minimally acceptable requirements. Advisory criteria are presented when their attainm
45、ent may enhance the general performance of the cabling system in all its contemplated applications. A note in the text, table, or figure is used for emphasis or offering informative suggestions, or providing additional information. ANSI/TIA-568.4-D vii Metric equivalents of US customary units The di
46、mensions in this Standard are metric or US customary with approximate conversion between the two. Life of this Standard This Standard is a living document. The criteria contained in this Standard are subject to revisions and updating as warranted by advances in building construction techniques and t
47、elecommunications technology. ANSI/TIA-568.4-D 1 1 SCOPE This Standard specifies requirements and recommendations for 75 broadband coaxial cabling, cables, cords, and connecting hardware to support community antenna television (CATV, commonly referred to as cable television), satellite television, a
48、nd other applications supported by the telecommunications infrastructure (star topology) defined by ANSI/TIA-568.0-D and other topologies specified within this Standard. Included are transmission requirements, mechanical requirements, and requirements related to electromagnetic compatibility (EMC) f
49、or cabling, cables and connectors; cabling installation and connector termination procedures; and field testing procedures. 2 NORMATIVE REFERENCES The following standards contain provisions which, through reference in this text, constitute provisions of this Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. ANSI and TIA maintain reg
