TIA-470 210-C-1-2006 Telecommunications Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones Addendum 1 Addendum to TIA-470 210-C《电信.pdf

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1、 TIA STANDARD Telecommunications Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones Addendum 1 TIA-470.210-C-1 (Addendum to TIA-470.210-C) November 2006 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in associati

2、on with the Electronic Industries Alliance ANSI/TIA-470.210-C-1 Approved: November 13, 2006Copyright 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 P

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6、n whatever to parties adopting 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

7、to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-4350.210-C-RV3-AD1, formulated under the cognizanceof the TIA, TR-41.3 User premisis Telecommunications Requirements Subcommittee on Analog and Digital Wireline Terminals). Published by TELECOMMUN

8、ICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 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

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22、HE CONTENTS. Copyright Telecommunications Industry Association 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 CONT

23、ENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND 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 L

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25、ed by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWARD (This foreword is not part of this Standard.) This Addendum corrects an error made in transferring the longitudinal balance performance requirements from TIA-470-B to this docu

26、ment in the process of creating this revision. TR-41.3 acknowledges the contribution made by the following individuals in the development of this addendum: Name Representing Don McKinnon AST Technology Labs, Inc. Stephen R. Whitesell VTech This Standard was originally developed by the TR-41.3.6 Work

27、ing Group chaired by Don McKinnon of AST Technology Labs, Inc. At the time it approved this Addendum, the TR-41.3 Subcommittee had the following members: Name Representing Position James Bress AST Technology Labs, Inc. Chair Harry Van Zandt ECS Technologies Vice-Chair Don McKinnon AST Technology Lab

28、s, Inc. Ken Macdonald Microtronix Greg Slingerland Mitel Networks Roger Britt Nortel Steve Graham Plantronics Allen Woo Plantronics Amar Ray Sprint Al Baum Uniden Steve Kropp VTech Stephen R Whitesell VTech Jim Smith Wyle Labs Copyright Telecommunications Industry Association Provided by IHS under l

29、icense with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-470.210-C-1 i TABLE OF CONTENTS 1. INTRODUCTION1 2. SCOPE 1 3. CLAUSE REVISION.1 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction

30、 or networking permitted without license from IHS-,-,-TIA-470.210-C-1 1 1. INTRODUCTION Section 3 of this addendum contains a change to TIA-470.210-C. The information in section 3 of this document identifies the original clause number in TIA-470.210-C that is to be changed. The other clauses in TIA-

31、470.210-C are not affected. 2. SCOPE This addendum only provides changes to TIA-470.210-C, “Telecommunications Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones”. 3. CLAUSE REVISION Replace Figure 17 in clause 4.9.1 with the following figure: 454751

32、57616630405060708090100 1000 10000Frequency (Hz)dBUnacceptable RegionAcceptable Region(no maximum limit)Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunicati

33、ons Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-