1、 TIA-470.130-C (Revision of TIA-470.130) April 2008Telecommunications Telephone Terminal Equipment Transmission Requirements for Analog Telephones with Headsets ANSI/TIA-470.130-C-2008 APPROVED: APRIL 16, 2008 REAFFIRMED: MAY 3, 2016 NOTICE TIA Engineering Standards and Publications are designed to
2、serve the public interest through eliminating misunderstandings 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
3、such Standards and Publications shall not in any respect preclude any member or non-member of TIA from 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,
4、either domestically or internationally. Standards and 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 adopti
5、ng the Standard or Publication. This Standard does 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 applicabili
6、ty of regulatory limitations before its use. Any use of trademarks in this document are for information purposes and do not constitute an endorsement by TIA or this committee of the products or services of the company. (From Project No. SP-3-4350.130-RV3-RF1, formulated under the cognizance of the f
7、ormulated under the cognizance of the TIA TR-41 User Premises Telecommunications Requirements, TR-41.3 Subcommittee on Analog and Digital Wireline Terminals). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Technology and Standards Department 1320 N. Courthouse Road, Suite 200 Arlington, VA 222
8、01 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call IHS, USA and Canada (1-877-413-5187) International (303-397-2896) or search online at http:/www.tiaonline.org/standards/catalog/ All rights reserved Printed
9、in U.S.A. NOTICE OF COPYRIGHT This document is copyrighted by the TIA. Reproduction of these documents either in hard copy or soft copy (including posting on the web) is prohibited without copyright permission. For copyright permission to reproduce portions of this document, please contact the TIA S
10、tandards Department or go to the TIA website (www.tiaonline.org) for details on how to request permission. Details are located at: http:/www.tiaonline.org/standards/catalog/info.cfm#copyright or Telecommunications Industry Association Technology (b) there is no assurance that the Document will be ap
11、proved by any Committee of TIA or any other body in its present or any other form; (c) the Document may be amended, modified or changed in the standards development or any editing process. The use or practice of contents of this Document may involve the use of intellectual property rights (“IPR”), i
12、ncluding pending or issued patents, or copyrights, owned by one or more parties. TIA makes no search or investigation for IPR. When IPR consisting of patents and published pending patent applications are claimed and called to TIAs attention, a statement from the holder thereof is requested, all in a
13、ccordance with the Manual. TIA takes no position with reference to, and disclaims any obligation to investigate or inquire into, the scope or validity of any claims of IPR. TIA will neither be a party to discussions of any licensing terms or conditions, which are instead left to the parties involved
14、, nor will TIA opine or judge whether proposed licensing terms or conditions are reasonable or non-discriminatory. TIA does not warrant or represent that procedures or practices suggested or provided in the Manual have been complied with as respects the Document or its contents. If the Document cont
15、ains one or more Normative References to a document published by another organization (“other SSO”) engaged in the formulation, development or publication of standards (whether designated as a standard, specification, recommendation or otherwise), whether such reference consists of mandatory, altern
16、ate or optional elements (as defined in the TIA Procedures for American National Standards) then (i) TIA disclaims any duty or obligation to search or investigate the records of any other SSO for IPR or letters of assurance relating to any such Normative Reference; (ii) TIAs policy of encouragement
17、of voluntary disclosure (see TIA Procedures for American National Standards Annex C.1.2.3) of Essential Patent(s) and published pending patent applications shall apply; and (iii) Information as to claims of IPR in the records or publications of the other SSO shall not constitute identification to TI
18、A of a claim of Essential Patent(s) or published pending patent applications. TIA does not enforce or monitor compliance with the contents of the Document. TIA does not certify, inspect, test or otherwise investigate products, designs or services or any claims of compliance with the contents of the
19、Document. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OF THE CONTENTS, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY AND ITS NONINFRINGEMENT OF ANY THIRD PARTYS INTELLECTUAL PRO
20、PERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE CONTENTS COMPLIANCE WITH ANY APPLICABLE STATUTE, RULE OR REGULATION, OR THE SAFETY OR HEALTH EFFECTS OF THE CONTENTS OR ANY PRODUCT OR SERVICE
21、REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQ
22、UENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DA
23、MAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-470.130-C i TABLE OF CONTENTS FOREWORD _ V 1 SCOPE _ 1 2 REFERENCES _ 2 3 ABBREVIATIONS, ACRONYMS, AND DEFINITIONS _ 3 3.1 ABBREVIATIONS AND ACRONYMS
24、. 3 3.2 DEFINITIONS 4 4 TECHNICAL REQUIREMENTS _ 6 4.1 CATEGORIES OF CRITERIA. 6 4.2 GENERAL 6 4.2.1 Headset Type 6 4.2.2 Mouth and Ear Simulator Usage.6 4.2.3 Headset Positioning 6 4.2.4 Volume and tone control settings .6 4.3 TEST CIRCUITS. 7 4.3.1 Send Testing with Artificial Lines7 4.3.2 Receive
25、 Testing with Artificial Lines.7 4.3.3 Sidetone Testing with Artificial Lines8 4.3.4 DC Feed Circuit9 4.3.5 Termination Impedance10 4.3.6 Artificial Lines10 4.3.7 CPE Load Simulator.11 4.4 RECEIVE PERFORMANCE 13 4.4.1 General13 4.4.2 Headset Receiver Volume Control Setting.13 4.4.3 Headset Receive F
26、requency Response .13 4.4.3.1 Requirement 13 4.4.3.2 Method of Measurement .13 4.4.4 Headset Receive Loudness Rating (RLR) 15 4.4.4.1 Basic Requirement 15 4.4.4.2 Parallel Set Off-Hook Requirement15 4.4.4.3 Conference Mode15 4.4.4.3.1 Requirement 15 4.4.4.3.2 Method of Measurement 16 4.4.5 Headset R
27、eceive Distortion 16 4.4.5.1 Headset Receive Signal-to-Distortion and Noise Ratio16 4.4.5.1.1 Requirement 16 4.4.5.1.2 Method of Measurement 16 ANSI/TIA-470.130-C ii 4.4.5.2 Headset Receive Signal-to-Distortion and Noise Ratio with a Parallel Set16 4.4.6 Headset Receive Noise .17 4.4.6.1 Headset Off
28、-Hook Noise.17 4.4.6.1.1 Requirement .17 4.4.6.1.2 Method of Measurement.17 4.4.6.2 Headset Off-Hook Receive Single Frequency Interference17 4.4.6.2.1 General .17 4.4.6.2.2 Requirement .17 4.4.6.2.3 Measurement Method.17 4.5 SEND PERFORMANCE 18 4.5.1 General18 4.5.2 Headset Send Frequency Response 1
29、8 4.5.2.1 Requirement 18 4.5.2.2 Method of Measurement .18 4.5.3 Headset Send Loudness Rating (SLR) .20 4.5.3.1 Basic Requirement 20 4.5.3.2 Parallel Set Off-Hook Requirement20 4.5.3.3 Conference Mode20 4.5.3.3.1 Requirement .20 4.5.3.3.2 Method of Measurement.20 4.5.4 Headset Send Distortion .21 4.
30、5.4.1 Headset Send Signal-to-Distortion and Noise Ratio.21 4.5.4.1.1 Requirement .21 4.5.4.1.2 Method of Measurement.21 4.5.4.2 Headset Send Signal-to-Distortion and Noise Ratio with a Parallel Set 21 4.5.5 Headset Send Noise 22 4.5.5.1 Headset Off-Hook Noise.22 4.5.5.1.1 Requirement .22 4.5.5.1.2 M
31、ethod of Measurement.22 4.5.5.2 Headset On-Hook Noise .22 4.5.5.2.1 Requirement .22 4.5.5.2.2 Method of Measurement.22 4.5.5.3 Headset Off-Hook Send Single Frequency Interference.23 4.5.5.3.1 General .23 4.5.5.3.2 Requirement .23 4.5.5.3.3 Measurement Method.23 4.5.6 Headset Send Muting23 4.5.6.1 Re
32、quirement 23 4.5.6.2 Method of Measurement .23 4.6 SIDETONE PERFORMANCE24 4.6.1 General24 4.6.2 Headset Sidetone Masking Rating (STMR) .24 4.6.2.1 Requirement 24 4.6.2.2 Method of Measurement .24 ANSI/TIA-470.130-C iii 4.6.3 Headset Sidetone Echo Delay.24 4.6.3.1 Recommendation.24 4.6.3.2 Method of
33、Measurement .24 4.7 ACOUSTIC STABILITY. 25 4.7.1 Requirements 25 4.7.2 Method of Measurement.25 ANNEX A (NORMATIVE) NOISE WEIGHTING CURVES _ 27 A.1 SEND NOISE CURVES 27 A.2 RECEIVE NOISE CURVE 29 ANNEX B (NORMATIVE) CALCULATION OF LOUDNESS RATINGS _ 30 B.1 SEND LOUDNESS RATING (HANDSET):. 30 B.2 REC
34、EIVE LOUDNESS RATING (HANDSET):. 31 B.3 SIDETONE MASKING RATING (HANDSET): 31 ANNEX C (NORMATIVE) ISO R40 AND 1/12THOCTAVE BAND FREQUENCIES _ 33 ANNEX D (INFORMATIVE) BIBLIOGRAPHY _ 35 ANNEX E (INFORMATIVE) RECEIVE ACOUSTIC LIMITING_ 36 ANNEX F (INFORMATIVE) LOUDNESS RATINGS FOR TELEPHONES ON PBX, V
35、OICE GATEWAYS, DIGITAL END OFFICE AND DIGITAL LOOP CARRIERS _ 37 ANNEX G (INFORMATIVE) LOSS PLAN AND LOUDNESS RATING REFERENCES AND HIERARCHY_ 39 ANNEX H (INFORMATIVE) NOMINAL FREQUENCY RESPONSE CHARACTERISTICS AND LOUDNESS RATING CALCULATIONS _ 40 ANNEX I (INFORMATIVE) USE OF THE FREE FIELD AS THE
36、TELEPHONOMETRIC REFERENCE POINT _ 44 ANNEX J (INFORMATIVE) RETURN LOSS TESTING_ 46 ANSI/TIA-470.130-C iv Table of Figures Figure 1 Test Circuit for Send Measurements 7 Figure 2 Test Circuit for Receive Measurements . 7 Figure 3 Test Circuit for Sidetone Measurements 8 Figure 4 One Possible DC Feed C
37、ircuit 9 Figure 5 Artificial Line Segment 10 Figure 6 CPE Load Simulator V-I Characteristic Requirement 11 Figure 7 One Possible CPE Load Simulator Implementation. 12 Figure 8 Headset receive frequency response mask . 14 Figure 9 Headset Send Frequency Response Mask 19 Figure 10 Reference Corner Jig
38、 (RCJ) For Stability Testing 25 Figure 11 Headset Stability Test Orientation #1. 26 Figure 12 Headset Stability Test Orientation #2. 26 Figure A.1 Psophometric and C-Message Noise Weighting Curves Comparison 28 Figure A.2 A-Weighting Noise Weighting Curve 29 Figure F.1 Loudness Rating Relationships
39、for PBXs, VGs and DEOs 38 Figure G.1 Hierarchical Relationship between Loudness Rating and Loss Plan Standards . 39 Figure H.1 Nominal Send Frequency Response . 42 Figure H.2 Nominal Receive Frequency Response 42 Figure I.1 Flat Free Field Loudspeaker Response 44 Figure I.2 HATS Measurement of Same
40、Loudspeaker. 44 Figure I.3 HATS Measurement of Handset Telephone 45 Figure I.4 Type 1 Ear Simulator Measurement of Handset Telephone 45 Table of Tables Table 1 Artificial Line Segment Component Values 10 Table 2 Headset receive frequency response limits 14 Table 3 Headset Receive Loudness Rating Lim
41、its . 15 Table 4 Headset Receive Signal-to-Distortion and Noise Ratio Requirements 16 Table 5 Headset Send Frequency Response Limits 19 Table 6 Headset Send Loudness Rating Limits 20 Table 7 Headset Send Signal-to-Distortion and Noise Ratio Requirements. 21 Table 8 Reference corner headset placement
42、 for stability test 25 Table A.1 Psophometric Weighting Curve Table A.2 C-Message Weighting Curve . 27 Table A.3 A-Weighting Curve 29 Table B.1 ITU-T P.79 Tables 1, 2 and 3, Weighting Factors For Calculating Loudness Ratings 32 Table C.1 ISO R40, ISO R-10,1/12thOctave and 1/3rdOctave Frequencies 33
43、Table H.1 Nominal Frequency Response Characteristics and Loudness Ratings Calculations 43 ANSI/TIA-470.130-C v FOREWORD (This foreword is not part of this Standard.) This document is a TIA Telecommunications standard produced by Subcommittee TR-41.3 of Committee TR-41. This standard was developed in
44、 accordance with TIA procedural guidelines, and represents the consensus position of the Subcommittee, which served as the formulating group. There are ten annexes in this Standard. Annex A, Annex B, and Annex C are normative and are considered part of this Standard; Annex D through Annex J are info
45、rmative and are not considered part of this Standard. The leadership of the TR-41.3.11 Headset Acoustic Performance Requirements for Analog Telephones Subcommittee (Chair: K. Allen Woo, Plantronics, Inc.) acknowledges the written contributions provided by the following individuals in the development
46、 of this document. Organization Representative TIA-470.130-C AST Technology Labs Don McKinnon 9 Editor Acoustics for Communications Ron Magnuson 9 Advent Instruments, Inc. Dave Stenner 9 Consultant in Electro-acoustics John Bareham 9 Bob Young and Associates Bob Young 9 Embarq Amar Ray 9 Listen Inc.
47、 Steve Temme 9 MWM Acoustics Glenn Hess 9 Nortel Roger Britt 9 Plantronics K. Allen Woo 9 Uniden Al Baum 9 Suggestions for improvement of this standard are welcome. They should be sent to: Telecommunications Industry Association Engineering Department Suite 300 250 Wilson Boulevard Arlington, VA 22201 ( http:/www.tiaonline.org ) ANSI/TIA-470.130-C 1 Telephone Terminal Equipment Transmission Requirements for Analog Telephones with Headsets 1 SCOPE This standard provides transmission requirements for analog telephones when used with a headset. The requirements in this standard ap
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1