1、 TIA-631-B (Revision of TIA-631-A) February 2011Telecommunications Telephone Terminal Equipment Radio Frequency Immunity RequirementsANSI/TIA-631-B-2011 APPROVED: FEBRUARY 15, 2011 REAFFIRMED: FEBRUARY 2, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the public interes
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23、NT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS.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.
24、DEFINITIONS_ 3 5. TECHNICAL REQUIREMENTS_ 4 5.1. GENERAL INFORMATION _ 4 5.1.1. Ambient Conditions _ 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
25、 5.2. IMMUNITY TO RADIATED ELECTRIC FIELD (E-FIELD) INTERFERENCE _ 7 5.2.1. Receive (Near End Interference) 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
26、 LEADS _ 14 5.3.1. Receive (Near End Interference) Requirements _ 14 5.3.2. Transmit (Far End Interference) 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) Requ
27、irements _ 19 5.4.2. Transmit (Far End Interference) Requirements _ 20 5.4.3. Functionality Requirements _ 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
28、 C HISTORICAL BACKGROUND (INFORMATIVE) _ 29 ANNEX D RFI CONSIDERATIONS (INFORMATIVE) _ 30 ANNEX 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
29、simulator7 Figure 2 Radiated mode near end requirement 8 Figure 3 Radiated mode far end requirement.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 fo
30、r radiated E-field immunity12 Figure 7 Corded handset orientation for radiated E-field immunity13 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
31、 Test configuration for conducted immunity on signal leads .17 Figure 12 Cordless TTE handset orientation 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
32、requirement20 Figure 16 Conducted mode on power leads far end requirement 21 Figure 17 Detailed 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 conditi
33、ons during testing4 Table 2 RF signal characteristics for radiated mode E-field7 Table 3 RF signal 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 S
34、tandard was originally developed in the early 1990s in response to numerous consumer complaints 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 radi
35、o broadcasts. Additional information concerning its development may be found in the annexes. The 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
36、update references and to clarify that the document as written only applies directly to telephones 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 sys
37、tems, and telephones with headsets. There are 6 annexes, all of which are informative and are not 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 Requirement
38、s. It was developed in accordance with TIA procedural guidelines and represents the consensus position 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 Rand
39、y Ivans, Underwriters Laboratories) acknowledges the written contributions provided by the following 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 impro
40、vement of this standard are welcome. They may be sent to: Telecommunications Industry Association 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 Termin
41、al Equipment (TTE) having an acoustic output and two-wire TTE adjunct devices with connection port 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
42、the requirements to TTE having other types of acoustic outputs, such as speakerphones, answering 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
43、longitudinal (common mode) conducted RF signals over the frequency range from 150 KHz to 30 MHz. 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
44、 or references to existing standards wherein such procedures will be found. This standard does not 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 Permi
45、ssive 1. Mandatory requirements are designated by the terms “shall” and “shall not”. These requirements 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 o
