1、g3g3TIA-631-B (Revision of TIA-631-A) February 2011Telecommunications Telephone Terminal Equipment Radio Frequency Immunity Requirements ANSI/TIA-631-B 2011 APPROVED: FEBRUARY 15, 2011 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating mis
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19、UCH LIMITATIONS. TIA-631-B TABLE OF CONTENTS 1. SCOPE_ 1 2. CATEGORIES OF CRITERIA _ 1 3. NORMATIVE REFERENCES _ 1 4. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS _ 2 4.1. ABBREVIATIONS AND ACRONYMS _ 2 4.2. DEFINITIONS_ 3 5. TECHNICAL REQUIREMENTS_ 4 5.1. GENERAL INFORMATION _ 4 5.1.1. Ambient Conditio
20、ns _ 4 5.1.2. TTE Configuration and Operating Conditions _ 4 5.1.3. Test Configuration Conditions _ 5 5.1.4. CO Simulator Analog DC Feed Test Circuit _ 6 5.1.5. Standardized Telephone Load Test Circuit_ 7 5.2. IMMUNITY TO RADIATED ELECTRIC FIELD (E-FIELD) INTERFERENCE _ 7 5.2.1. Receive (Near End In
21、terference) Requirements _ 7 5.2.2. Transmit (Far End Interference) Requirements _ 8 5.2.3. Functionality Requirements _ 9 5.2.4. Method of Measurement_ 9 5.3. IMMUNITY TO CONDUCTED INTERFERENCE ON SIGNAL LEADS _ 14 5.3.1. Receive (Near End Interference) Requirements _ 14 5.3.2. Transmit (Far End In
22、terference) Requirements _ 15 5.3.3. Functionality Requirements _ 15 5.3.4. Method of Measurement_ 15 5.4. IMMUNITY TO CONDUCTED INTERFERENCE ON POWER LEADS_ 19 5.4.1. Receive (Near End Interference) Requirements _ 19 5.4.2. Transmit (Far End Interference) Requirements _ 20 5.4.3. Functionality Requ
23、irements _ 21 5.4.4. Method of Measurement_ 21 6. ALTERNATIVE METHOD CONDUCTED RF SIGNALS ON POWER AND SIGNAL LEADS_ 24 ANNEX A - TEST EQUIPMENT (INFORMATIVE)_ 25 ANNEX B OVERVIEW (INFORMATIVE) _ 28 ANNEX C HISTORICAL BACKGROUND (INFORMATIVE) _ 29 ANNEX D RFI CONSIDERATIONS (INFORMATIVE) _ 30 ANNEX
24、E EXTENSION TO PRODUCTS OTHER THAN HANDSET TELEPHONES (INFORMATIVE) _ 31 ANNEX F INFORMATIVE REFERENCES _ 33 i TIA-631-B Table of Figures Figure 1 CO simulator .6 Figure 2 Standardized telephone test set simulator7 Figure 2 Radiated mode near end requirement 8 Figure 3 Radiated mode far end requirem
25、ent.9 Figure 4 General TEM cell test setups for radiated E-field immunity.11 Figure 5 Cordless TTE handset orientation for radiated E-field immunity .12 Figure 6 Cordless TTE angled handset orientation for radiated E-field immunity12 Figure 7 Corded handset orientation for radiated E-field immunity1
26、3 Figure 8 Adjunct TTE orientation for radiated E-field immunity13 Figure 9 Conducted mode on signal leads near end requirement 14 Figure 10 Conducted mode on signal leads far end requirement.15 Figure 11 Test configuration for conducted immunity on signal leads .17 Figure 12 Cordless TTE handset or
27、ientation for conducted immunity18 Figure 13 Corded TTE orientation for conducted immunity .18 Figure 14 Adjunct TTE orientation for conducted immunity 19 Figure 15 Conducted mode on power leads near end requirement20 Figure 16 Conducted mode on power leads far end requirement 21 Figure 17 Detailed
28、test configuration for metallic conducted immunity on power leads 23 Figure 18 TEM cell test configuration for conducted immunity .24 Figure 19 Types of TEM cell25 Table of Tables Table 1 Climatic conditions during testing4 Table 2 RF signal characteristics for radiated mode E-field7 Table 3 RF sign
29、al characteristics for conducted mode on signal leads14 Table 4 RF signal characteristics for conducted mode on power leads .19 ii TIA-631-B FOREWORD (This foreword is not a part of this Standard.) This Standard was originally developed in the early 1990s in response to numerous consumer complaints
30、to the Federal Communications Commission (FCC) about landline telephones being susceptible to Radio Frequency Interference (RFI), with the most frequent complaints concerning telephones picking up AM radio broadcasts. Additional information concerning its development may be found in the annexes. The
31、 Standard was revised in 2002 with a major restructuring in format, additional clarity about testing procedures, and some minor changes to the requirements. The main purpose of the current revision is to update references and to clarify that the document as written only applies directly to telephone
32、s with handsets. However, a new informative annex has been added to suggest how the test procedures and performance requirements may be extended to additional products such as speakerphones, answering systems, and telephones with headsets. There are 6 annexes, all of which are informative and are no
33、t considered part of this Standard. This Standard was produced by Subcommittee TR-41.7, Environmental and Safety Considerations, of Engineering Committee TR-41, User Premises Telecommunication Requirements. It was developed in accordance with TIA procedural guidelines and represents the consensus po
34、sition of the Subcommittee, which served as its formulating group. It also received the concurrence of TR-41. The leadership of the TR-41.7 Environmental and Safety Considerations Subcommittee (Chair Randy Ivans, Underwriters Laboratories) acknowledges the written contributions provided by the follo
35、wing individuals in the development of this Standard. Organization Representative TIA-631-B VTech Communications Stephen R Whitesell 9 Editor AST Technology Labs, Inc. Don McKinnon 9 Suggestions for improvement of this standard are welcome. They may be sent to: Telecommunications Industry Associatio
36、n Engineering Department Suite 300 2500 Wilson Boulevard Arlington, VA 22201 iii TIA-631-B 1. SCOPE This standard specifies Radio Frequency (RF) immunity performance criteria for two-wire Telephone Terminal Equipment (TTE) having an acoustic output and two-wire TTE adjunct devices with connection po
37、rt for Telephone Terminal Equipment (TTE) having an acoustic output. Acoustic output requirements are only defined for TTE having a handset normally held to the ear of the user, but guidance on extending the requirements to TTE having other types of acoustic outputs, such as speakerphones, answering
38、 systems and telephones with headsets, is provided in an informative annex. Criteria are specified for immunity to radiated RF signals over the frequency range from 150 KHz to 150 MHz and for immunity to longitudinal (common mode) conducted RF signals over the frequency range from 150 KHz to 30 MHz.
39、 Criteria for immunity to metallic (differential) conducted RF signals on signal leads are not covered. In addition to the performance levels themselves, this standard includes recommended test procedures or references to existing standards wherein such procedures will be found. This standard does n
40、ot consider immunity performance criteria to intentional network signals (e.g. xDSL). 2. CATEGORIES OF CRITERIA Three types of requirements are specified in this standard; Mandatory, Recommended and Permissive 1. Mandatory requirements are designated by the terms “shall” and “shall not”. These requi
41、rements are used to indicate conformity in which no deviation is permitted. 2. Recommended requirements are designated by the terms “should” and “should not”. These requirements generally relate to compatibility or performance advantages towards which future designs should strive. 3. Permissive requ
42、irements are designated by the terms “may” and “may not”. These requirements are used to indicate an action that is permitted within the limits of the standard. 3. NORMATIVE REFERENCES The following standards contain provisions, which, through reference in this text, constitute provisions of this St
43、andard. 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 re
44、gisters of currently valid national standards published by them. 1. ANSI/TIA-470.110-C Telecommunications - Telephone Terminal Equipment- Handset Acoustic Performance Requirements for Analog Terminals 1 TIA-631-B 4. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS For the purpose of correct interpretation o
45、f this document, the following key technical terms and abbreviations apply. Terms used in the document but not defined in this section shall be interpreted according to their internationally accepted definition. 4.1. ABBREVIATIONS AND ACRONYMS For the purposes of this Standard, the following abbreviations and
