1、TIA STANDARD Telecommunications - Telephone Terminal Equipment - Radio Frequency Immunity Requirements TIA-631-A (Revision of TIA/EIA-631) DECEMBER 2002 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Rcprmnling lhc tclecommunkalions industry in associalion wilh lhe FJeclronic Industries AUiancc Electronic
2、indu6tries Alliance Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misund
3、erstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Standards and Publications shall not in any res
4、pect preclude any member or non-member of TIA fi-om manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members, either domestically or internationally. Standards a
5、nd Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA 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
6、not purport to address all safety problems associated with its use or all applicable regulatory 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
7、Standards Proposal No. 3-3210-RV1, formulated under the cognizance of the TIA TR-41.7 Subcommittee on Environmental and Safety Considerations.) Published by OTELECOMMUNICATIONS INDUSTRY ASSOCIATION 2002 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Pleas
8、e refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) or search online at http:/www.tiaonline.org/standards/search-n-order.cfm All rights rese
9、rved Printed in U.S.A. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or net
10、working permitted without license from IHS-,-,-NOTICE OF DISCLAIMER AND LIMITATION OF LIABILITY The document to which this Notice is affixed has been prepared by one or more Engineering Committees of the Telecommunications Industry Association (?TIA?). TIA is not the author of the document contents,
11、 but publishes and claims copyright to the document pursuant to licenses and permission granted by the authors of the contents. TIA Engineering Committees are expected to conduct their affairs in accordance with the TIA Engineering Manual (?Manual?), the current and predecessor versions of which are
12、 available at b i: /hvww. i8mnI i n od or Mandatory, Recommended and Permissive 1. 2. 3. Mandatory requirements are designated by the terms “shall” and “shall not”. These requirements are used to indicate conformity in which no deviation is permitted. Recommended requirements are designated by the t
13、erms “should” and “should not”. These requirements generally relate to compatibility or performance advantages towards which future designs should strive. Permissive requirements are designated by the terms “may7 and “may not”. These requirements are used to indicate an action that is permitted with
14、in the limits of the standard. 2 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-63 1 -A 3. NORMATIVE REFERENCES The following standards contain provisions, which, through reference
15、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 stand
16、ards indicated below. ANSI and TIA maintain registers of currently valid national standards published by them. 1. 2. 3. 4. 5. 6. 7. 8. 9. ANSI C63.4-2001, American National Standard, Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of
17、9 KHz to 40 GHZ. CISPR 22-1997, Limits and Methods of Measurement of Radio Disturbance Characteristics of Information Technology Equipment. IEC 61000-4-3-2001, Electromagnetic Compatibility (EMC) - Part 4-3. Testing and Measurement Techniques - Radiated, Radio-Frequency, Electromagnetic Field Immuni
18、ty Test IEC 61000-4-6-2001, Electromagnetic Compatibility (EMC) - Part 4: Testing and Measurement Techniques - Section 6: Immunity To Conducted Disturbances, Induced By Radio-Frequency Fields IEC 61000-4-16, Electromagnetic Compatibility (EMC) - Part 4-16: Testing And Measurement Techniques - Test F
19、or Immunity To Conducted, Common Mode Disturbances In The Frequency Range O HZ To 150 KHz IEC 60318-1-1998, Electroacoustics - Simulators of human head and ear - part 1: ear simulator for the calibration of supra-aural earphones. IEC 60318-2-1998, Electroacoustics - Simulators of human head and ear
20、- part 2: an interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range IEC 60318-3-1998, Electroacoustics - Simulators of human head and ear - part 3: acoustic coupler for the calibration of supra-aural earphones used in audiometry TIA/EIA-810-A-2001,
21、 Telecommunications - Telephone Terminal Equipment - Transmission Requirements For Digital Wireline Telephones WARNING: This document contains references to the following work-in-progress which is subject to change: PN-3-4350.110-RV3 (to be published as ANSITIA-470.110-C). The most current version o
22、f PN-3-4350.110-RV3 is available in the public directory of TR-41.3.5 at: hi: /if .ti am1 ins: .or&-4 1 l1-14 1 3 SIT ubli c:Laiest-Wevi sion-of-PK43 5 O- 1 1 Di 10. PN-3-4350.110-RV3 (to be published as ANSITIA-470.110-C) Telecommunications - Telephone Terminal Equipment- Handset Acoustic Performan
23、ce Requirements 3 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-63 1 -A 4. ABBREVIATIONS, ACROMMS, AND DEFINITIONS For the purpose of correct interpretation of this document, the f
24、ollowing 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 acronyms ap
25、ply. For the purpose of correct interpretation of this document, the following key abbreviations apply. T&R AM ANSI AWG CISPR CO E-field EIA EMC FCC GTEM IEC IEEE LISN RF RFI TIA TEM T-LISN TTE Tip and Ring terminals or interface Amplitude Modulation American National Standards Institute American Wi
26、re Gauge International Special Committee on Radio Interference Central Office Electric Field Electronic Industries Association Electro Magnetic Compatibility Federal Communications Commission Gigahertz Transverse ElectroMagnetic International Electrotechnical Commission Institute of Electrical and E
27、lectronics Engineers Line Impedance Stabilization Network Radio Frequency Radio Frequency Interference Telecommunications Industry Association Transverse Electro Magnetic Telecommunications Line Impedance Stabilization Network Telephone Terminal Equipment 4 Copyright Electronic Industries Alliance P
28、rovided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-63 1 -A 4.2. DEFINITIONS For the purposes of this Standard, the following definitions apply. Off-Hook Auxiliary equipment Refers to the state of a particular CPE rather than th
29、e line state. Equipment not under test, but indispensable for setting up all functions and assessing the correct performance or operation of the equipment under test during its exposure to RF signals. Interference effects produced in the Telephone Terminal Equipment (TTE) that manifest themselves in
30、 auxiliary equipment connected to signal leads in the test configuration. Far end interference Ground plane RF Immunity A conducting surface or plate used as the common reference point for circuit or system. The ability of equipment to meet the performance criteria specified in this standard in the
31、presence of RF signals. Line Impedance Stabilization Network (LISN) A network inserted between the leads of the TTE and auxiliary equipment to provide a specified impedance through which RF signals may be injected into the TTE and which prevents RF signals from reaching the auxiliary equipment. Two
32、types of LISN are specified in this standard: the ANSI LISN for use on power leads and the IEC T-LISN for use on signal leads. Interference effects produced in the TTE that manifest themselves as an acoustic output from the handset receiver. A standardized telephone load circuit for replicating a te
33、lephone. equipment due to the presence of RF signals. Near end interference Standardized Phone Load Radio Frequency Interference (RFI) Performance degradation, malfunction, or failure of Signal leads Used to describe any conductors carrying signals between equipment. This includes the tip and ring c
34、onductors of balanced twisted pair cables. Telephone Terminal Equipment (TTE) An electronic device which has a wireline connection to the public telecommunications network. hectoPascals SI Measurement unit for measuring atmosphere pressure. 1013 hPa equals 101.3 kilopascals or 1013 millibars. 5 Copy
35、right Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-63 1 -A Relative humidity (RH): Atmospheric pressure: (Normalized to Sea-Level Pressure) 5. TECHNICAL REQUIREMENTS 5.1. GENERAL INFORMATIO
36、N Testing shall be performed at 100 logarithmically spaced points per decade. Dwell time shall be a minimum of 0.5 seconds or the minimum response time, whichever is longer. The alternative test methods may be used provided correlation to the preferred method can be shown. 5.1.1. Ambient Conditions
37、In order to minimize the impact of environmental parameters on test results, the testing shall be carried out under the ambient conditions described below: 20% to 70% 950 hPa to 1050 hPa (hectoPascals) 5.1.1.1. Climatic Conditions The climatic conditions shall be within the ranges of Table 1 : I Amb
38、ient temperature: I 20C to 25OC I 5.1.1.2. The measured Background Noise and Spectral Interference levels (noise floor) shall not be greater than 35 dBSPL for Near-end testing and -75 dBV for Far-end testing, determined per the following: 1. With all associated test equipment power on, remove the RF
39、 signal at the TEM Cell or LISN inputs. 2. Perform the mock test run and measure the Background Noise and Spectral Interference levels. Measured Background Noise and Spectral Interference Conditions Note: The TTE shall be off-hook during the Background Noise and Spectral Interference measurement. 6
40、Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-63 1 -A 5.1.2. 5.1.2.1. TTE configuration 1. The TTE shall be configured for testing to simulate the real application as closely as po
41、ssible. Power and interconnecting cables shall be of the same types as supplied or recommended for use with the equipment. 2. TTE with user adjustable configuration menus shall be changed from the power-up defaults and memory location shall be filled for functional testing. 3. The TTE receive volume
42、 control shall be set to produce the reference Receive Loudness Rating (RLR) specified in PN-3-4350.110-RV3 for analog TTE and TIA-810-A for digital TTE. TTE Configuration and Operating Conditions 5.1.2.2. The cables supplied with the TTE shall be utilized for the radiated and conducted testing. The
43、 signal and power cables shall be limited to I 30cm in length by bundling and wrapping the excess cable. See sections 5.2, 5.3 and 5.4 for the respective configuration details. 5.1.3. Test Configuration Conditions 5.1.3.1. Acoustic Coupling Tube In order to avoid the effects of capacitive coupling t
44、o the metallic structure of an ear simulator or its disturbing effects on the E-field, an acoustic coupling tube shall be used to measure the output of the telephone receiver. The length of such an acoustic coupling tube shall be an integral number of wavelengths of the demodulated 1000 Hz signal to
45、 be measured (e.g., N x 0.345 m for typical laboratory conditions). The tube shall be terminated and sealed at the handset with a non-conductive coupler having external dimensions matching that of an ear simulator. The tube shall be made of a flexible, thick-walled, non-conductive material. The inne
46、r diameter of the tube shall provide a snug fit around the microphone and preamplifier assembly. 5.1.3.2. Acoustic Coupling Tube Calibration The acoustic coupling tube shall be calibrated using either of the following methods: 1. Using an acoustic calibrator device (e.g. Bruel & Kjaer 4231 Acoustic
47、Calibrator), measure the output voltage from the microphone terminating the acoustic coupling tube (measured by the Selective Voltmeter in Figure 5) and reference the voltage level to the known acoustic calibrator output level. 2. Apply a 1000 Hz, -2OdBV signal to the TTE (as measured at T&R) and me
48、asure its acoustic output on the ear simulator using the procedure for receive measurements described in PN-3- 4350,110-RV3. Note the sound pressure level produced. Using the identical test signal and other details of the test configuration (e.g., battery feed circuitry) , measure the output voltage
49、 from the microphone terminating the acoustic coupling tube. Adjust the indicating instrument to read the same sound pressure as previously measured . Note: This calibration may be specific to the telephone being measured. Similar telephones using the same handset swle and type of receiver element will produce similar calibrations. However, changing from one type of receiver element to another (e.g., from a moving coil to a piezo ceramic receiv
