TIA TSB31-B-1998 Part 68 Rationale and Measurement Guidelines《第68部分 基本原理及测量指南》.pdf

1、- STD-EIA TSB3L-B-ENGL 1998 m 3234b00 0599i-lb5 T98 m -i - k I TIAIEIA TELECOIMM?UNICATIONS SYSTEMS BULLETIN Part 68 Rationale and Measurement Guidelines FEBRUARY 1998 TELECOMMUNICATIONS INDUSTRY ASSOCIATION -h-l7 Lir*Lo.a*aroitrlai*r(aAuoctilbi m- -YASWMllM Copyright Electronic Industries Alliance

2、Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-EIA TSB3L-B-ENGL 1998 3234b00 05994bb 724 i* 1“ . NOTICE TIA/EIA Engineering standards and Publications am designed to serve the public interest through eliminating misundemd

3、ings between ma*rs and purchasers, facilitating intexchaqphii and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product far his particular need. Existence of such Standards and Publications shall not in any respect preclude any member o

4、r nonmember of TIA/EIAfrommamifacturin g or selling prochicts not codorming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than TIA/HA members, whether the standard is to be used either domesticaUy or intemat

5、idy. Standards, Publications and Buletins are adopted by EIA in accofdiLIce with the American National Standards Institue (ANS) patent policy. By such action, TWEW does not assume any liability to any patent owner, nor does it assume any obligaion whatever to parties adopting the Standard, Publicati

6、on, or Builetin. Technical Bulletins are distinguished hm TIAIHA Standards or interim Standards, in that they contain a compilation of engheerhg data or information useful to the techaicat community, and represent approaches to good engineering practices that axe suggested by the formulating committ

7、ee. This Bulletin is not intended to preclude or discourage other approaches that simiMy represeat good engineer practice, or that may be acceptable to, or have been accepted by, appropriate bodies. Parties who wish to bring other appmaches to the attention of the formulating committee to be conside

8、red for inclusion in lbture revisionS of this Bulletin are encouraged to do so. It is the intention of the formulating committee to revise and update this Bulletin from time to time as may be occasioned by changes in technology, industry practice, or government regulations, or for other appmpriate r

9、easons. (From Project No. 3602, formulated under the Cognizance of the TIA “R-41.9 Subcommitee on Terminal Aachment Programs). Published by WOMMNICATIONS INDUSTRY ASSOCIATION 1998 Standards and Technology Departmeat 2500 Wilson Bodwad Arlington, VA 22201 PRI-. Piease der to the current Cataia of HA,

10、 JEIBEC and TIA STANDARDS and ENG-G PUBLCAITONS or call Giobai Engiuedng Documents, USA and canada (1-7179) International (303-397-7956) All rights xesemed printed in U.S.A. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking per

11、mitted without license from IHS-,-,- STD.EIA TSB31-B-ENGL 1998 m 3234b00 05994b7 8bO m .1 8 TSB-3 I -B FOREWORD This document is an EIMIA Technical Bulletin, produced by subcommittee TR- 41.9 of Engineering Committee TR-41, Telephone Terminals, under the sponsorship of the Telecommunications Industr

12、y Association. Technical Bulletins are distinguished from EIA/TIA Recommended Standards or Interim Standards in that they contain a compilation of engineering data or information useful to the technical community and represent approaches to good engineering practices that are suggested by the fo rm

13、u I at i ng committee. This Bulletin is not intended to preclude or discourage other approaches which similarly represent good engineering practice, or which may be acceptable to, or have been accepted by, appropriate bodies such as the Federal Communications Commission. Parties who wish other appro

14、aches to be considered for inclusion in future revisions of this Bulletin are encouraged to bring them to the attention of the formulating committee. It is the intention of the formulating committee to revise and update this Bulletin from time to time as may be occasioned by changes in technology, i

15、ndustry practice, or government regulations, or for other appropriate reasons. The present edition of this Bulletin represents the consensus of the formulating committee, as concurred to by subcommittee and committee ballots. I Copyright Electronic Industries Alliance Provided by IHS under license w

16、ith EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-EIA TSB3L-B-ENGL 1998 3234b00 05774b 7T7 LI J t TSB-31-B TR-41 COMMITTEE MEMBERS Charles Berestecky Tom Russell John Schick Pierre Adornato Dennis Rittenhouse Jim Romlein Peter Murray Leroy Baker Paul Kish

17、 Anh Wride C. David Hays Efrain Guevara Scott Roleson Anh Wride Lucent Technologies Philips Broadband Networks Nortel Nortel University of Waterloo MIS Labs E ri csson Reliance CommlTec NORDWCDT Corp. Communication Certification Lab TR-41.9 EDITING COMMITTEE MEMBERS Lucent Technologies Stentor Hewle

18、tt-Packard Communication Certification Lab Chair TR-41 Vice-Chair TR-41 Chair TR41.1 Chair TR41.2 Chair TR41.3 Chair TR41.5 Chair TR41.6 Chair TR41.7 Chair TR41.8 Chair TR41.9 The following participated in the development of this document. TR-41.9 GENERAL COMMITTEE MEMBERS Organization Represented N

19、ame of Representative AMP lnc. AMP Inc. Anomet Products Eugene Reed George Lawrence Robert Gallant iii Previous page is blank Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STDmEIA TSB

20、3L-B-ENGL 1778 3234b00 0577Lib7 b33 W 9 I TSB-31-B Lucent Technologies Charles Berestecky Lucent Technologies Lucent Tech nolog es Lucent Technologies Lucent Technologies Lucent Technologies Lucent Technologies Bellcore Bell Northern Reasearch Bell Atlantic Bell Canada ATS Lab Certelecom Laboratorie

21、s Inc. Communication Certification Laboratory Communication Certification Laboratory Communication Certification Laboratory Compliance Design Inc. Comdial Dupont Elite Electronic Engineering Ericsson Inc. General Datacomm, Inc. GTE Testmark Labs GTE Corporation Hewlett-Packard Inchcape Testing Servi

22、ces Industry Canada Industry Canada Mitel Corporation Mitel Corporation Mitel Corporation Mobile Engineering Ray Fuller C.David Hays Steve Whitesell George Reichard Steve Crosby Eugene Drees Art Daughtry Joe Baart Trone Bishop Jacques Cardinal David Dulmage Scott Earl Anh Wride Mel Hacker David Kall

23、us John Green Ernest Nicotera Ray Klouda Dan Eckert David Moon Charles Mosgrave Harry VanZandt Scott Roleson Jon Christian0 Henry Mar Robert Corey Greg Slingerland Robert Hamilton John Needham John Bipes iv Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for Resale

24、No reproduction or networking permitted without license from IHS-,-,-Motorola ISG Nortel Nortel Nortel Redcom Labs Inc. RGP, Inc. Reliance Commec Siemens Business Communications Siemens Business Communications Sprint Local Tel. Division Stentor Teccor Electronics, Inc. Thomson Consumer Electronics I

25、nc. Thomson Consumer Electronics Inc. Underwriters Laboratories Inc. Verilink Wang Laboratories Inc. Don McChesney Doug Law Bao Tran Pierre Adornato Bruce Littlefield Ron Provost Leroy Baker Tailey lung Gordon Baldwin Cliff Chamney Efrain Guevara C.A. Francis II Terry Eckert Tom Russell William Roge

26、rs William Buckley Mac Plante Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE OF CONTENTS FOREWORD . i TR-41 COMMITTEE MEMBERS i TABLE OF CONTENTS . vii LIST OF FIGURES xi 1 . INTR

27、ODUCTION 1 2 . SCOPE . 3 3 . DEFINITIONS. ACRONYMS AND ABBREVIATIONS 5 4 . GENERAL INFORMATION 11 5 . ENVIRONMENTAL SIMULATION 68.302 . 29 5.1. Sequencing of Environmental Simulations 29 5.2. Mechanical Shock 68.302(a) . 34 5.3. Telephone Line Surge -Type A, Metallic . 68.302(b)(l) 36 5.4. Telephone

28、 Line Surge . Type A. Longitudinal . 68.302(b)(2) 38 5.5. Telephone Line Surge . Type B. Metallic . 68.302()(1) 40 5.6. Telephone Line Surge - Type B, Longitudinal . 68.302()(2) 43 5.7. Power Line Surge 68.302(d)(l) . 46 6 . LEAKAGE CURRENT LIMITATIONS (ANALOG AND DIGITAL) 68.304 . 49 7 . HAZARDOUS

29、VOLTAGE LIMITATIONS 68.306 . 55 7.1 . General 55 7.1 . 1 . General (Network Connections) . 55 7.1.2. E FOUR-WIRE, TI limitations to maximum signal power applied to the network to avoid interference with other telephone network services and users; limitations to longitudinal imbalance which may cause

30、 crosstalk interference in the wire cable plant; and limitations to CPE functions that can interfere with the operation of telephone companies billing equipment. O O O In addition, the Rules contain technical standards for telephones that, if met, ensure compatibility with magnetically coupled heari

31、ng aids. FCC Part 68 does not address performance of the CPE. To connect CPE to the telephone network for those applications covered by Part 68, the CPE must be registered with the FCC. The basis for registration is a standard application filed on FCC Form 730 (Ref A12) by the manufacturer (or vendo

32、r) with the FCC, guaranteeing that its product complies with, and will continue to comply with, the Part 68 technical standards. As part of the application, the manufacturer provides data obtained by testing the CPE for compliance with the technical standards. The manufacturer also provides a descri

33、ption of the test procedures used in the evaluation of the CPE and an explanation of how the equipment is designed to assure compliance with the technical standards. The FCC will determine from evaluation of this information whether to approve the CPE for connection to the network. 1 Copyright Elect

34、ronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1) .I TSB-3 1 -B 2. SCOPE This document covers test procedures, test equipment, and guidelines for determining compliance with the technical requirements

35、 of Part 68 FCC Rules and Regulations. Reference is made to the specific Part 68 Rule(s) applicable for the test procedure in question. It contains a proposal for one measurement procedure for each Part 68 technical requirement and, in some cases, an alternative procedure. However, these proposed pr

36、ocedures are not exclusive. Other measurement procedures and test equipment may be acceptable to the FCC. This document also includes test procedures for evaluating materials used for connectors (plugs and jacks) as specified in Section 68.500 of the Rules. In the event of conflict between Part 68 a

37、nd this document, Part 68 takes precedence. Additional information is presented in the appendices to this document. The test procedures do not cover the administrative or other equipment authorization procedures required by the FCC. The FCCs “Form 730 Application Guide” (Ref A17) Part 2 (Ref AI 1) a

38、nd Part 68, cover these procedures. The “Form 730 Application Guide” (Ref Al 7) also contain some technical interpretations of the Rules. The FCC updates these instructions frequently. Each test procedure assumes availability of current Part 68 Rules and consequently is cross-referenced to the appli

39、cable subsection of Part 68. Similarly, the Table of Contents provides a cross-reference to the Part 68 Rules. Section 4.5 provides a test requirement matrix that indicates the applicable Part 68 sections(s) and test guideline(s) for each specific network interface type. In addition, the matrix refe

40、rences the Rules which are applicable to passive devices such as specialty adapters, and cross-connect fields. Some of the tests prescribed in this bulletin may involve the presence of hazardous voltages and currents or other potential dangers. Some of these hazards have been identified, and appropr

41、iate warnings have been included in the text explaining such tests. However, appropriate safety precautions are always recommended when performing any laboratory test. 3 Previous page is blank Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproductio

42、n or networking permitted without license from IHS-,-,-Id I. STD*EIA TSBIZ-B-ENGL 1778 W 323Lib00 0577480 2TLi TSB-31-B Test equipment is listed in this document for each measurement method. A list of test equipment, except equipment used in Section 15 or the Appendices, is given in.Section 4.4, inc

43、luding suggested specifications. This bulletin is intended to be a living document. It may be reviewed when the FCC adopts new technical requirements or changes existing ones; it may also be updated to deflect improved measurement technology or to improve the document. 4 Copyright Electronic Industr

44、ies Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TSB3L-B-ENGL 3798 m 3234b00 0577483 LI0 m *, -1 TSB-3 1 -B 3. DEFINITIONS, ACRONYMS AND ABBREVIATIONS These definitions are meant to be used within the framew

45、ork of this document. Additional definitions and information may be found in the publications referenced in Appendix A. 0 Cadenced Ringing The process of alerting the called party with the application of a ringing signal which is cycled on and off. Typical CO ringing consists of 2-second intervals o

46、f 20 Hz energy applied between tip and ring, followed by a 4-second quiet interval. This sequence is repeated until the called party answers or the call is abandoned. 0 Capture Level Equipment with AGC (Automatic Gain Control) signal power limiting has virtually no output signal power for input leve

47、ls below a certain value. At some input signal power, the output level will become significant (usually corresponding to the expected output level for service application). The input level at which this occurs is defined as the “capture leve I”. CO Telephone Central Office. 0 CommonMode See Longitud

48、inal Mode. 0 CPE - Customer Premises Equipment Equipment which is located on the customers side of the network interface. 0 DC Signal A dc voltage or current. 0 DC Signaling The transmission of information using changes in dc signals. Pulse dialing is an example of dc signaling used for the purpose

49、of network addressing. 5 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD*EIA TSB3L-B-ENGL 1978 3234b00 0577482 077 D I* ,* TSB-31-B Power level in decibels with reference to a power of 0.001 .W (e.g., O dBm is a power level of 1 mW). 0 dBV Voltage in decibe