ANSI TIA-920.000-B-2015 Telecommunications Communications Products Overview of Transmission Requirements for Digital Interface Communications Devices.pdf

1、 TIA-920.000-B October 2015Telecommunications Communications Products Overview of Transmission Requirements for Digital Interface Communications Devices ANSI/TIA-920.000-B-2015 APPROVED: OCTOBER 26, 2015 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest thro

2、ugh 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 Publication

3、s 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, either domestically or interna

4、tionally. 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

5、. 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 applicability of regulatory limitations b

6、efore 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 Standards Proposal No. ANSI/TIA-PN-920.000-B, formulated under the cognizance of the TIA TR-41 User Premi

7、ses 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 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TEL

8、ECOMMUNICATIONS 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 in U.S.A. NOTICE OF COPYRIGHT This document is copyrighted

9、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 Standards Department or go to the TIA website (www.tiaonline

10、.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 approved by any Committee of TIA or any other body in its pre

11、sent 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”), including pending or issued patents, or copyrights, owned by

12、 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 accordance with the Manual. TIA takes no position with refer

13、ence 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, nor will TIA opine or judge whether proposed licensing te

14、rms 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 contains one or more Normative References to a document publish

15、ed 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, alternate or optional elements (as defined in the TIA Procedures

16、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 of voluntary disclosure (see TIA Procedures for American Na

17、tional 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 TIA of a claim of Essential Patent(s) or published pending pa

18、tent 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 Document. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIME

19、D, 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 PROPERTY RIGHTS. TIA EXPRESSLY DISCLAIMS ANY AND ALL RESPONSIB

20、ILITIES 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 REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMP

21、LY 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 CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LO

22、SS 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 DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS H

23、EREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-920.000-B TABLE OF CONTENTS 1 Scope and Purpose 1 Scope . 1 1.1Purpose 1 1.22 Document Structure for the TIA-920 Series . 2 Base Document TIA-920.000, Overview of Transmission Requirements for Digital Interface 2.1

24、Communications Devices 2 Section TIA-920.100, Transmission Requirements for Digital Interface Communications Devices 2 2.2i TIA-920.000-B FOREWORD (This foreword is not part of this standard) This document is a TIA Telecommunications standard produced by Working Group TR-41.3.3 of Committee TR-41. T

25、his standard was developed in accordance with TIA procedural guidelines, and represents the consensus position of the Working Group and its parent Subcommittee TR-41.3, which served as the formulating group. The leadership of the TR-41.3.3 VoIP and PCM Transmission Performance Working Group (Chair:

26、Allen Woo, Plantronics) acknowledges the written contributions provided by the following individuals in the development of this standard. Organization Representative TIA-920.000-B Whitesell Consulting LLC Stephen R Whitesell Editor Suggestions for improvement of this standard are welcome. They shoul

27、d be sent to: Telecommunications Industry Association Technology and Standards Department Suite 200 1320 North Courthouse Road Arlington, VA 22201 ( http:/www.tiaonline.org ) ii TIA-920.000-B INTRODUCTION The TIA-920 series documents now provide acoustic transmission performance requirements for bot

28、h wideband and narrowband digital wireline telephones. The series consists of this base document and three subdocuments providing separate requirements for telephones equipped with handsets, headsets, and speakerphones. The first TIA standard to cover narrowband digital transmission performance for

29、wireline telephones was TIA-579, Acoustic-to-Digital and Digital-to-Acoustic Transmission Requirements for ISDN Terminals, published in February 1991. It was revised in 1998 and the name shortened to Transmission Requirements for Digital Wireline Telephones. However, it only covered telephones equip

30、ped with handsets. TIA-579-A was replaced in December 1999 by Interim Standard TIA-IS-810, Transmission Requirements for Narrowband Voice over IP and Voice over PCM Digital Wireline Telephones, which included requirements for telephones with handsets, headsets, and speakerphones. A revised version a

31、chieved full standards status a year later. In 2006, the document was again revised to become TIA-810-B, and the name was shortened to Transmission Requirements for Narrowband Digital Telephones. TIA-920, Transmission Requirements for Wideband Digital Wireline Telephones, was published in December 2

32、002 and covered telephones equipped with handsets, headsets, and speakerphones. A decision was made to separate the subsequent TIA-920-A revision into a series of subdocuments, with the base document and the handset and headset versions published in February 2011. The speakerphone version followed i

33、n November 2012. Since it is anticipated that many digital communications devices going forward will support narrowband and wideband transmission modes, this “B” revision of the TIA-920 series incorporates requirements for both modes into each of the handset, headset, and speakerphone sub-documents.

34、 Thus, this document will supersede TIA-810-B. Future revisions may add coverage for even wider bandwidths, such as the super-wideband and full band transmission modes.11ITU-T Recommendation P.10/G.100 and its Amendment 3 define normal band (narrowband) as covering 300 to 3400 Hz, wideband as coveri

35、ng 100 to 7000 Hz, super-wideband as covering 50 to 14,000 Hz, and full band as covering 20 to 20,000 Hz. iii TIA-920.000-B OVERVIEW OF TRANSMISSION REQUIREMENTS FOR DIGITAL INTERFACE COMMUNICATIONS DEVICES 1 SCOPE AND PURPOSE SCOPE 1.1The TIA-920 series of standards provide acoustic transmission re

36、quirements for digital interface communications devices. The devices may be equipped with handsets, headsets, or speakerphones for providing the acoustic interface to the user. They may operate in the narrowband (300 to 3400 Hz) transmission mode or the wideband (100 to 7000 Hz) transmission mode, o

37、r they may support operation in both modes. PURPOSE 1.2This particular document serves as the core standard and provides a description of the document structure for the series. Since the various types of acoustic interfaces (handset, headset, and speakerphone) require somewhat different test methods

38、, there is one document in the series for each type of interface. However, each interface document contains transmission requirements for both narrowband and wideband modes of operation. 1 TIA-920.000-B 2 DOCUMENT STRUCTURE FOR THE TIA-920 SERIES The TIA-920 series of standards consists of a base do

39、cument and a series of sub-documents containing acoustic transmission requirements for digital interface communications devices. Each sub-document in the series addresses requirements unique to a particular type of user acoustic interface. The document numbers listed do not include the current revis

40、ion suffix (e.g. “-A”, “-B”, etc.). The reader should check for the most recent version of each document BASE DOCUMENT TIA-920.000, OVERVIEW OF TRANSMISSION REQUIREMENTS FOR 2.1DIGITAL INTERFACE COMMUNICATIONS DEVICES This base document provides an overview of the acoustic performance requirements f

41、or digital interface communication devices and contains a detailed listing of the sub-documents in the series. SECTION TIA-920.100, TRANSMISSION REQUIREMENTS FOR DIGITAL INTERFACE 2.2COMMUNICATIONS DEVICES This Section contains the transmission performance requirements for digital interface communic

42、ations devices with various types of user acoustic interfaces and includes the following sub-documents: TIA-920.110 Transmission Requirements for Digital Interface Communications Devices with Handsets TIA-920.120 Transmission Requirements for Digital Interface Communications Devices with Speakerphon

43、es TIA-920.130 Transmission Requirements for Digital Interface Communications Devices with Headsets 2 THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION TIA represents the global information and communications technology (ICT) industry through standards development, advocacy, tradeshows, business opportuni

44、ties, market intelligence and world-wide environmental regulatory analysis. Since 1924, TIA has been enhancing the business environment for broadband, wireless, information technology, cable, satellite, and unified communications. TIA members products and services empower communications in every industry and market, including healthcare, education, security, public safety, transportation, government, the utilities. TIA is accredited by the American National Standards Institute (ANSI).