1、 TIA STANDARD Telecommunications Telephone Terminal Equipment Handset Acoustic Performance Requirements Addendum 1 TIA-470.110-C-1 April 2007 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance ANSI/TI A-470.110-
2、C-1 Approved: April 11, 2007 Copyright Telecommunications Industry Association 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
3、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 such Standards and Publications sh
4、all 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, either domestically or internation
5、ally. 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 adopting the Standard or Publication. Th
6、is 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 applicability of regulatory limitations befor
7、e its use. (From Standards Proposal No. 3-4350.110-RV3-AD1, formulated 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 Standards and Technology D
8、epartment 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call IHS USA and Canada (1-800-525-7052 ) International (303-790-0600) or search online at http:/www.tiaonline.or
9、g/standards/catalog/ All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE OF COPYRIGHT This document is copyrighted by the TIA. Reproduct
10、ion 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 TIA Standards Department or go to the TIA website (www.tiaonline.org) for details on how
11、to request permission. Details are located at: http:/www.tiaonline.org/standards/catalog/info.cfm#copyright OR Telecommunications Industry Association Standards (b) there is no assurance that the Document will be approved by any Committee of TIA or any other body in its present or any other form; (c
12、) 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”), including pending or issued patents, or copyrights, owned by one or more parties. TIA
13、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 accordance with the Manual. TIA takes no position with reference to, and disclaims any
14、 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, nor will TIA opine or judge whether proposed licensing terms or conditions are reas
15、onable 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 contains one or more Normative References to a document published by another organization
16、 (“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, alternate or optional elements (as defined in the TIA Engineering Manual, 4thedition) then
17、(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 of voluntary disclosure (see Engineering Manual Section 6.5.1) of Essential Patent(s) and publish
18、ed 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 TIA of a claim of Essential Patent(s) or published pending patent applications. TIA does not enforce or monitor compliance with
19、 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 Document. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING
20、 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 PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIBILITIES FOR THE ACCURACY OF THE CONTENTS AND MAKES NO REPRESENTATI
21、ONS 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 REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. Copyright Telecommunications Industry Associ
22、ation Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-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 A
23、ND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL 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
24、 OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduc
25、tion or networking permitted without license from IHS-,-,-TIA-470.110-C-1 Table of Contents 1. SCOPE 1 2. CLAUSE REVISIONS .1 iCopyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TI
26、A-470.110-C-1 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 accordance with TIA procedural guidelines, and represents the consensus position of the Subcommi
27、ttee, which served as the formulating group. The TR-41.3 Subcommittee acknowledges the contributions made by the following individuals in the development of this addendum. Name Representing Al Baum (Vice-Chair, Editor) Uniden Steve Whitesell VTech The TR-41.3 Subcommittee acknowledges the participat
28、ion by the following individuals in the development of this addendum. Name Representing Dave Stenner Advent Instruments Inc. Amaud Vergnol Alcatel USA Don McKinnon AST Technology Labs, Inc. James Bress AST Technology Labs, Inc. Joanne McMillen Avaya Joachim Pomy Avaya Kirit Patel Cisco Tim Lawler Ci
29、sco Harry Van Zandt ECS Technologies Stephen Julstrom Etymotic Research Martin Perrine FCC Judy Harkins Gallaudet University Linda Kozma-Spytek Gallaudet University Gunnar Rasmussen GRAS Ed Terrell GRAS Brenda Battat HLAA Matthew Mulvihill Industry Canada Christina Gallagher Industry Canada iiCopyri
30、ght Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-470.110-C-1 Neil King Infineon Ken Macdonald Microtronix Greg Slingerland Mitel Networks Roger Britt Nortel Robert Wegner Panasonic
31、 Steve Fujimoto Panasonic Tony Jasionowski Panasonic Allen Woo Plantronics Steve Graham Plantronics Amar Ray Embarq David Preves Starkey Laboratories Weili Lin Starkey Laboratories Steve Hanke Starkey Laboratories Roger Hunt Thomson Inc. Al Baum Uniden Steve Kropp VTech Steve Whitesell VTech Trone B
32、ishop Verizon 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 ) iiiCopyright Telecommunications Industry Association Provided
33、by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-470.110-C-1 INTRODUCTION Since TIA-470.110-C was first published in 2004, several events have occurred that contributed to the need for a revision of the standard. 1. A new version of
34、ITU-T P.57 (11/2005) was published changing the Type 3.3 pinna simulator hardness requirement from Shore-00 55 to Shore-00 35. 2. Field data indicated multi-lab correlation problems can occur when handset positioning is specified as ERP. The same field data indicated that the correlation problem doe
35、s not occur when handset positioning is specified using force. 3. A Type 3.3 pinna simulator can now be obtained from multiple vendors. Clause 2 of this addendum contains changes to TIA-470.110-C. The information in clause 2 of this document identifies the original clause numbers in TIA-470.110-C th
36、at are to be changed. The other clauses in TIA-470.110-C are not affected. ivCopyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-470.110-C-1 Telephone Terminal Equipment Handset
37、 Acoustic Performance Requirements Addendum 1 1. SCOPE This addendum only provides changes to TIA-470.110-C, “Telecommunications Telephone Terminal Equipment Handset Acoustic Performance Requirements”. 2. CLAUSE REVISIONS Replace clause 2.1 with the following: 2.1 NORMATIVE REFERENCES 1. ANSI/IEEE S
38、td 269-2002 Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets and Headsets 2. ANSI S1.4-1983 (R2006) Specification for Sound Level Meters 3. 47 CFR Part 68 Code of Federal Regulations (CFR), Title 47, FCC Part 68, Connection of Terminal Equipment
39、to the Telephone Network. 4. IEEE Std 743-1995 IEEE Standard Equipment Requirements and Measurement Techniques for Analog Transmission Parameters for Telecommunications 5. ITU-T Recommendation O.41 (1994) Psophometer for use on telephone-type circuits 6. ITU-T Recommendation P.57 (2005) Artificial E
40、ars 7. ITU-T Recommendation P.64 (1999) Determination of Sensitivity/Frequency Characteristics of Local Telephone Systems. 8. ITU-T Recommendation P.79 (1999) Calculation of Loudness Ratings for Telephone Sets 1Copyright Telecommunications Industry Association Provided by IHS under license with EIAN
41、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-470.110-C-1 Replace clause 4.2 with the following: 4.2 GENERAL The transmission performance of a telephone is determined by its acoustical-to-electrical, electrical-to-acoustical, or acoustical-to-acoustical transf
42、er characteristics. The default test signal in this document is sinusoidal with the R40 format preferred (see Annex C). Some telephone designs may include non-linear processes (which may not respond reliably to sinusoidal signals); thus it may be advisable to use artificial speech as a test signal a
43、s described in IEEE Std 269. Mouth and ear simulator selection, calibration, usage and handset positioning shall be done according to IEEE Std 269 unless stated otherwise in this document. A Type 3.3 ear simulator (see ITU-T Recommendation P.57) shall be used for all measurements with the handset in
44、 the HATS position and the receiver located at the high leak position unless stated otherwise in this document. Note: Previous versions of P.57 have specified the 3.3 pinna with different characteristics. Only the 3.3 pinna meeting the requirements of P.57 (November 2005) is acceptable for use as de
45、scribed in this standard. Replace clause 4.2.1 with the following: 4.2.1 Standard Test Positions Unless otherwise specified, all tests shall be performed at the high leak position as defined below: The Type 3.3 artificial ear with the receiver contacting the pinna with a force of 10N. Some tests sha
46、ll be performed at the low leak position as defined below: The Type 3.3 artificial ear with the receiver contacting the pinna with a force of 18 N. 2Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without l
47、icense from IHS-,-,-TIA-470.110-C-1 Replace clause 4.2.2 with the following: 4.2.2 Recommended Test Positions A manufacturer may specify Recommended Test Positions (RTP) for the high leak and the low leak positions, to be used for all tests in this standard. The RTP may specify the handset position
48、with respect to ERP, or other aspects of the test position intended to simulate actual use. If the CPE is tested at the RTP, the RTP shall be documented. RTP for a handset may be defined (using coordinates as defined in ITU-T P.64, Annex E) by following these steps: 1. Find the Ear-Cap Reference Point (ECRP) on the handset. Unless otherwise specified by the manufacturer, the ECRP is the intersection of the external ear-cap reference plane with a normal axis through the effective acoustic center of the sound outlet ports. Generally, the acoustic center of the sound outlet
