1、 ANSI/TIA-968-B-2-2015 APPROVED: JANUARY 21, 2015 Telecommunications Telephone Terminal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network- Addendum 2 TIA-968-B-2 (Addendum to TIA-968-B) January 2015 Adopted by ACTA March 20, 2015 NOTICE TIA Engineering St
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23、OING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-968-B-2 TABLE OF CONTENTS 1. SCOPE 1 2. ADDITION TO NORMATIVE REFERENCES 1 3. ADDITION OF NEW SUB-CLAUSE 1 i ANSI/TIA-968-B-2 FOREW
24、ORD (This foreword is not part of this Standard.) This document is an addendum to TIA-968-B, Telecommunications Telephone Terminal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network. It was developed to provide a new sub-clause on test conditions for requi
25、rements for testing wideband and narrowband analog telephones for out-of-band emissions. This addendum was produced by Subcommittee TR-41.9, Technical and Administrative Regulatory Considerations. It was developed in accordance with TIA procedural guidelines, and represents the consensus position of
26、 the Subcommittee, which served as the formulating group. It also received the concurrence of Engineering Committee TR-41, Performance and Accessibility for Communications Products. The leadership of the TR-41.9 Technical and Administrative Regulatory Considerations Subcommittee acknowledges the wri
27、tten contributions provided by the following individuals in the development of this addendum. Organization Representative TIA-968-B-2 Cisco Systems, Inc. Tim Lawler Editor Industry Canada Jason Nixon Whitesell Consulting LLC Steve Whitesell Suggestions for improvement of this document are welcome. T
28、hey should be sent to: Telecommunications Industry Association Technology and Standards Department Suite 200 1320 N. Courthouse Rd. Arlington, VA 22201 ( http:/www.tiaonline.org ) ii ANSI/TIA-968-B-2 1. SCOPE This addendum provides changes to TIA-968-B, Telecommunications Telephone Terminal Equipmen
29、t Technical Requirements for Connection of Terminal Equipment to the Telephone Network. Clause 2 adds new normative references. Clause 3 adds a new sub-clause 5.1.9.4 specifying the use of an acoustic stimulus signal when testing analog telephones having electroacoustic transducers for live voice in
30、put for compliance with out-of-band emissions and in-band longitudinal signal requirements. All other clauses in TIA-968-B are not affected. Additions to the text are shown underlined. Words that appear in underlined italics in this addendum are intended as instructions to the reader. 2. ADDITION TO
31、 NORMATIVE REFERENCES Add the following reference to Clause 2: 6. IEEE Std 269-2010, IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets 3. ADDITION OF NEW SUB-CLAUSE Add new sub-clause 5.1.9.4 as follows: 5.1.9.4 Voice terminal e
32、quipment containing electroacoustic transducers for live voice input, including recording devices, shall comply with the limitations with a real male speech acoustic signal as specified in IEEE Std 269, set to a level of -4.7 dBPa, applied to the electroacoustic transducers. 1 THE TELECOMMUNICATIONS
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