1、Errata sheet for TINEIA-568-B.2. This sheet contains corrections to the document as shown. 1 PAGE:= CLAUSE: D.5.2 Change from: Clause D.7 specifies a systematic termination procedure that may be used to manufacture a set of plugs likely to satisfy the modular test plug requirements of clause D.6.10.
2、 Change to: Clause D.7 specifies a systematic termination procedure that may be used to manufacture a set of plugs likely to satisfy the modular test plug requirements of clause D.5.10. 2 PAGE:= CLAUSE: D.5.8 Change from: Maintain correct wire pair polarity as specified in clause D.6.5. Change to: M
3、aintain correct wire pair polarity as specified in clause D.5.6. 3 PAGE:= CLAUSE: D.6 Change from: It is necessary to obtain a set of test plugs that complies with clause D.6.10. Change to: It is necessary to obtain a set of test plugs that complies with clause D.5.1 O. Copyright Telecommunications
4、Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/TIA/EIA-568-B.2-2001 Approved: April 23, 2001 TIA/EIA STANDARD Commer cia1 Building Telecommunications Cabling Standard Part 2: Balanced Twisted-Pair Cab
5、ling Components (Revision of TIAIEIA-568-A) TELECOMMUNICATIONS INDUSTRY ASSOCIATION Tlie Telecoininiiiiicatioiis Industry Association represents tlie communications sector of Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or netw
6、orking permitted without license from IHS-,-,-NOTICE TIA/EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandmgs between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purc
7、haser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TMIA from manufacturing or selling products not conforming to such Standards and Publications, nor
8、 shall the existence of such Standards and Publications preclude their voluntary use by those other than TIA/EIA members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by TIA/EIA in accordance with the American National Standards In
9、stitute (ANSI) patent policy. By such actio% TMIA 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 address all safety problems associated with its use or all applicable reg
10、ulatory 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 Nos.4426-B and 4426-B.l, formulated under the cognizance of the TIA T
11、R- 42 Committee on User Premises Telecommunications Infrastructure.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2001 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 2220 1 PRICE: Please refer to current Catalog of EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENG
12、INEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted
13、 without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for Res
14、aleNo reproduction or networking permitted without license from IHS-,-,-TINEIA-568-B . 2 COMMERCIAL BUILDING TELECOMMUNICATIONS CABLING STANDARD PART 2: BALANCED TWISTEDPAIR CABLING COMPONENTS TABLE OF CONTENTS 1 INTRODUCTION . 1 1 . 1 Purpose 1 1.2 Specification of criteria . 1 1 . 4 Life of the St
15、andard 1 2 SCOPE . 1 2.1 Applicability . 1 2.2 Normative references . 2 3 DEFINITIONS, ABBREVIATIONS AND ACRONYMS. UNITS OF MEASURE 3.1 General . 3.2 Abbreviations and acronyms . 5 3.3 Units of measure 5 4 100 i2 BALANCED TWISTEDPAIR CABLES 6 4.1 General . 6 4.2 Cable transmission 4.2.1 Recognized c
16、atego 4.2.2 Multi-disturber envi . 6 4.2.3 Measurements points and spacing . 6 4.3 Horizontal cable 4.3.1 General . 4.3.2 Applicability 6 4.3.3 Mechanical 7 4.3.3.1 Insulated 7 4.3.3.2 Pair assembly 7 4.3.3.3 Color codes 7 4.3.3.4 Cable diameter . 7 4.3.3.5 Breaking strength . 7 4.3.3.6 Bending radi
17、us . 7 4.3.4 Transmission 7 4.3.4.1 DC resistance 7 4.3.4.2 DC resistance unbalance 8 4.3.4.3 Mutual capacitance . 8 4.3.4.4 Capacitance unbalance: pair-to-ground 8 4.3.4.5 Characteristic impedance and structural return loss (SRL) for category 3 cable 8 4.3.4.6 Return loss . 9 4.3.4.7 Insertion loss
18、 4.3.4.8 Near-end cross 4.3.4.9 . 1.3 Metric equivalents of US customary units 1 Power sum near-end crosstalk (PSNEXT) loss II 4.3.4.1 O Equal level far-end crosstalk (ELFEXT) 12 4.3.4.1 1 Power sum equal level far-end crosstal . 13 4.3.4.12 Propagation delay for 4-pair horizontal cables 13 4.3.4.1
19、3 Propagation delay skew for 4-pair horizontal cables 4.3.4.14 Measurement precautions . 4.3.5 Performance marking . 14 4.3.6 Bundled and hybrid cables 15 4.4 Backbone cable . 15 I Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction o
20、r networking permitted without license from IHS-,-,-TINEIA-568-B .2 4.4.1 General . 15 4.4.2 Applicability 4.4.3 Mechanical. 4.4.3.1 Insulated conductor . 15 4.4.3.2 Pair assembly 4.4.3.3 Color code . 4.4.3.4 Core assembly 16 4.4.3.5 Core wra 4.4.3.6 Core shie 4.4.3.7 Jacket . 16 4.4.4 Transmission
21、4.4.4.1 DC resistan 4.4.4.2 DC resistance unbalance . 16 4.4.4.3 Mutual capacitance 16 4.4.4.4 Capacitance unbalance: pair-to-ground .I6 4.4.4.5 Characteristic impedance and structural return loss for category 3 cable 17 4.4.4.6 Return loss 17 4.4.4.7 Insertion loss . 17 4.4.4.8 NEXT loss 4.4.4.9 PS
22、NEXT I 4.4.4.10 ELFEXT 20 4.4.4.1 1 PSELFEXT 4.4.4.12 Propagati 4.4.4.13 Propagatio 4.4.4.14 Dielectric strength 4.4.5 Core shield 4.4.5.1 Measurem 4.4.6 Performance marking . 22 4.5 Stranded conductor cable . 23 4.5.1 Mechanical 23 4.5.2 Transmission 4.5.3 Return loss . 4.5.4 Insertion loss 4.5.5 P
23、erformance marking . 24 5 100 i2 BALANCED TWISTEDPAIR CONNECTING HARDWARE . 25 5.1 5.2 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.4.5 5.4.6 5.4.7 5.4.8 5.5 5.6 25 25 Mechanical 25 Environmental compatibility. . . . 25 . Design . . . . . . . . . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Reliability 26 Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Recognized categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Insertion loss Return loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Far-end crosstalk (FEXT) loss 29 Propagation delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . . . . . . . . . . . . . . . . . . . . .29 Propagation delay skew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 DC resistance . . . . . . . .
29、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Telecommunications outletkonnector . . . . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Performance marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31、 . . . . . . . . . . . . . . . . . . . . . . 31 II Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TINEIA-568-B . 2 6 CORDS AND CROSS-CONNECT JUMPERS 32 6.1 General . 32 6.2 App
32、licability . 32 6.3 Mechanical 32 6.3.1 Insulated conductor 32 6.3.2 Color codes 32 6.3.3 Transmission requirements 33 6.3.3.1 Near-end crosstalk (NEXT) loss . 33 6.3.3.2 Return loss 35 Annex A Reliability testing of connecting hardware for 1 O0 Q balanced twisted-pair cabling (normative) 36 A.l Gen
33、eral . 36 A.2 Contact resistance measurement 37 A.3 Insulation resistance 37 A.4 Durability . 37 A.5 Vibration 37 A.6 Stress relaxation 37 A.7 Thermal shock . 38 A.8 Humidityhemperature cycle 38 A.9 Other testing 38 Annex B Test equipment overview (normative) 39 B.l General test configuration . 39 B
34、2 Balun requirements 39 B.3 Ground plane requirements 40 B.4 Network analyzer requirements 40 B.5 Impedance matching terminations . 40 B.5.1 Balun terminations . 40 B.5.2 Resistor terminations B.5.3 Termination performa B.6 General calibration and reference plane of measurements 41 B.6.1 Calibratio
35、n references 42 B.6.1 . 1 100 Q reference load measurement procedure 42 B.6.1 . 2 100 Q reference load return loss requirement 42 Annex C Testing of cable (normative) 43 C.l Insertion loss of cable . 43 C.l . 1 Test configuration for cable insertion loss C.l . 2 Calibration for cable . C.l . 2.1 C.1
36、3 Measurement of cable insertion loss C.2 NEXT loss of cable . C.2.1 Test configuration of cable NEXT loss . 45 C.2.2 Calibration of cable NEXT loss C.2.3 Measurement of cable NEXT lo C.3 ELFEXT of cable 45 C.3.2 Calibration of cable FEXT loss 46 C.3.3 Measurement of cable FEXT loss . 46 C.4 Return
37、 loss of cable . 46 C.4.1 Test configuration of cable return loss . 46 Two-port calibration of the test system 44 C.3.1 Test configuration of cable ELFEXT 45 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted
38、without license from IHS-,-,-TINEIA-568-6.2 C.4.2 Calibration of cable return loss . C.4.2.1 One-port calibration of the test system . . .46 C.4.3 Measurement of cable return loss Annex D Testing of conn D.l Insertion loss of connecting hardware . D.l .I Test configuration for connecting har .47 D.1
39、3 Measurement of con D.2 D.2.1 D.2.2 47 NEXT loss of connecting hardware . Test configuration for connecting hardware NEXT loss . Calibration of connecting hardware NEXT loss . D.2.3 Measurement of connecting hardware NEXT loss .50 D.3 FEXT loss of connecting hardware . 50 D.3.2 Calibration of conn
40、e .50 D.4 Return loss of connecting hardware Test configuration of connecting hardware return loss . Return loss reference plug . Calibration of connecting hardware return loss Measurement of connecting hardware return loss D.3.1 D.3.3 Measurement of CO D.4.1 D.4.1 .I D.4.2 D.4.3 Test configuration
41、of connecting hardware FEXT loss . . .51 .51 .51 D.5 Test plugs for connecting hardware 51 D.5.2 Applicability . . .51 D.5.3 General test plug require . D.5.4 De-embedding reference plug construction . D.5.5 Set up and calibrati D.5.6 De-embedding refe D.5.7 De-embedding refe D.5.8 De-embedding refe
42、 D.5.9 Test plug NEXT m D.5.1 O Modular test plug qualification . D.6.1 Test plug termination D.6.1 .I Test plug construction . D.7.1 Test plug lead len .62 Annex E Testing of cablin E.l Insertion loss of cabling E.l .I Test configurati . .63 E.1.2 Calibration of ca .63 E.1.3 Measurement of cabling
43、insertion loss 58 D.6 Modular test plug construction . .63 E .2 E.2.1 E.2.2 E.2.3 E.3 E.3.1 E.3.2 E.3.3 NEXT loss of cabling . . 63 Test configuration of cabling NEXT loss Calibration of cabling NEXT loss Measurement of cabling NEXT loss . ELFEXT of cabling . Test configuration ng ELFEXT Calibration
44、 of cabling FEXT loss . .63 Measurement of cabling FEXT loss . .63 63 . .63 63 63 .63 63 E.4 Return loss of cabling . E.4.1 Test configuration of cabling return loss . . .63 E.4.2 Calibration of cabling return loss . .63 E.4.3 Measurement of cabling return loss 63 iv Copyright Telecommunications Ind
45、ustry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TINEIA-568-B . 2 Annex F Testing of patch cords (normative) . 64 F.l Insertion loss of patch cords . 64 F.2 NEXT loss of patch cords . 64 F.2.1 Test configuratio
46、n for patch cord NEXT loss 64 F.2.2 Calibration for patch cord NEXT loss . 64 F.2.3 Measurement for patch cord NEXT loss 65 F.3 ELFEXT of patch cords 65 F.4 Return loss of patch cords 65 F.4.1 Test configuration for patch cord return loss 65 F.4.2 Calibration for patch cord return loss . 65 F.4.3 Me
47、asurement for patch cord return loss 65 F.4.3.1 Mechanical stress test 65 F.5 Test heads for patch cords . 65 F.5.1 Test head NEXT qualification . 66 F.5.1 . 1 F.5.1 . 2 F.5.1 . 3 F.5.1.4 F.5.1 . 5 F.5.2 Test head FEXT loss . 68 F.5.3 Test head return loss . 68 F.6 Test head design . 68 F.7 Calculat
48、ing test head contribution for NEXT loss limits from data . 71 F.8 Test head requalification procedure . 72 73 G.l Multiport test configuration, general . 73 G.2 Terminology . 73 G.3 Two port measurement of multiport device . 73 G.4 Common mode termination . 73 G.5 Measurement topology . 74 G.6 Grou
49、nd plane considerations 75 Annex H Measurement accuracy (informative) . 76 H.l Test system measurement accuracy estimates Test plugs for test head NEXT qualification Test head setup . NEXT loss -differential termination 66 NEXT loss - differential and common mode termination NEXT loss difference . Annex G Multiport measurement considerations (informati
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