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1、 TIA STANDARD Telecommunications Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones TIA-470.210-C Revision of TIA/EIA-470-B) APRIL 2004 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Elect
2、ronic Industries Alliance ANSI/TIA-470.210-C-2004 Approved: April 20, 2004 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted witho
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7、andard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-4350.210-RV3, formulated under the cognizance of the TIA TR- 41.3 Subcommittee on Analog and Digital Wireline Terminals.) Published
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21、CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networkin
22、g permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-47
23、0.210-C The TR-41.3.6 Working Group acknowledges the contribution made by the following individuals in the development of this standard. Name Representing Position (If Applicable) Don McKinnon AST Technology Labs, Inc. Chair / Editor Rick Carey RadioShack Editor Dave Stenner Advent Instruments, Inc.
24、 Fred Bonhomme Atlinks Ken Macdonald Microtronix Systems Ltd. Amar Ray Sprint Al Baum Uniden Steve Whitesell VTech The TR-41.3.6 Working Group, which had the technical responsibility during the development of this standard, had the following participating members. Name Representing James Bress AST T
25、echnology Labs Jim McNeill Atlinks Jim Mazzolini Casio Communications Pierluigi Pacciardi Casio Communications Rick White CIDCO Communications John Bareham Consultant in Electroacoustics Len Bleile ESP Berndt Martenson ETSI Harry Van Zandt ESC Technologies Ken Macdonald Microtronix Systems Steve Kro
26、pp VTech Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry As
27、sociation Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-470.210-C i TABLE OF CONTENTS 1 SCOPE _1 2 REFERENCES_2 2.1 NORMATIVE REFERENCES_2 2.
28、2 INFORMATIVE REFERENCES_2 3 ABBREVIATIONS, ACRONYMS, AND DEFINITIONS_3 3.1 ABBREVIATIONS AND ACRONYMS_3 3.2 DEFINITIONS_3 4 TECHNICAL REQUIREMENTS _4 4.1 CATEGORIES OF CRITERIA_4 4.2 REQUIREMENTS MODEL_4 4.3 TEST EQUIPMENT PERFORMANCE_4 4.4 DC FEED CIRCUIT_5 4.5 ON-HOOK RESISTANCE_6 4.5.1 Requireme
29、nts6 4.5.2 Method of Measurement 6 4.6 OFF-HOOK RESISTANCE_8 4.6.1 dc Resistance8 4.6.1.1 Requirements. 8 4.6.1.2 Method of Measurement 8 4.6.2 Simulated Open Switch Interval Recovery Time.10 4.6.2.1 Requirements. 10 4.6.2.2 Method of Measurement 10 4.7 ON-HOOK IMPEDANCE_11 4.7.1 dc Current During R
30、inging.12 4.7.1.1 Requirements. 12 4.7.1.2 Method of Measurement 12 4.7.2 Metallic Impedance During Ringing13 4.7.2.1 Requirement 13 4.7.2.2 Method of Measurement 13 4.7.3 Longitudinal Impedance During Ringing 14 4.7.3.1 Requirements. 14 4.7.3.2 Method of Measurement 14 4.7.4 Longitudinal Impedance
31、for ac Power Induction from Power Lines.15 4.7.4.1 Requirements. 15 4.7.4.2 Method of Measurement 15 4.7.5 On-Hook Metallic Impedance (5 Hz to 200 Hz, 1 Vrms to 10 Vrms).16 4.7.5.1 Requirement 16 4.7.5.2 Method of Measurement 16 4.7.6 In-Band On-Hook Metallic Impedance (200 to 3200 Hz) .17 4.7.6.1 R
32、equirement 17 4.7.6.2 Method of Measurement 17 4.8 OFF-HOOK METALLIC IMPEDANCE (RETURN LOSS) _18 4.8.1 Requirements18 4.8.2 Method of Measurement 18 Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Re
33、sale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-470.210-C ii 4.9 LONGITUDINAL BALANCE_ 20 4.9.1 Requirement .20 4.9.2 Method of Measurement.20 ANNEX A (INFORMATIVE) Scaled On-Hook Performance Limits Based On CPE Quantity Connected At The CI _ 2
34、1 ANNEX B (INFORMATIVE) ISO R-40 Frequencies _ 22 ANNEX C (INFORMATIVE) Longitudinal Balance Method Of Measurement _ 23 Table of Figures Figure 1 One possible dc Feed Circuit .5 Figure 2 On-Hook Resistance Requirements6 Figure 3 On-Hook Resistance between Tip and Ring 7 Figure 4 On-Hook Resistance T
35、ip-to-Ring with Ring grounded and Tip-to-Ring with Tip grounded7 Figure 5 V vs. I Characteristic Requirements.8 Figure 6 Off-Hook Resistance test setup9 Figure 7 Open Switch Interval test setup10 Figure 8 dc Current during Ringing Requirements 12 Figure 9 dc Current during Ringing test setup12 Figur
36、e 10 Metallic Impedance During Ringing Requirements.13 Figure 11 Metallic Impedance test setup13 Figure 12 Longitudinal Impedance test setup.14 Figure 13 On-Hook Metallic Impedance Requirements.16 Figure 14 In-Band On-Hook Metallic Impedance (200 to 3200 Hz) Requirements 17 Figure 15 Return Loss Req
37、uirements.18 Figure 16 Return Loss Test Circuit 19 Figure 17 Longitudinal Balance requirements20 Figure C.1 Example Longitudinal Balance Test Setup.23 Table of Tables Table 1 On-Hook Resistance Test Matrix 7 Table 2 Off-Hook Resistance Test Matrix9 Table 3 Simulated Ringing Test Signal Matrix11 Tabl
38、e 4 ac Power Induction Test Signal Matrix.15 Table 5 5 Hz to 200 Hz On-Hook Metallic Impedance Test Signal Matrix.16 Table 6 In-Band On-Hook Metallic Impedance Test Signal Matrix 17 Table A.1 Scaled On-Hook Performance From Recommended Limits .21 Table B.1 ISO R-40 Frequencies22 Copyright Telecommun
39、ications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-470.210-C 1 1 SCOPE This standard establishes criteria and proced
40、ures for evaluating the Resistance and Impedance performance of analog telephones and terminals connected to the Public Switched Telephone Network (PSTN). The recommended on-hook requirements are written with a model of five (5) Customer Premise Equipment (CPE) attached to the Customer Interface (CI
41、) and the minimum performance requirements are based on a model of three (3) CPE. This document proposes or references at least one measurement procedure for each technical requirement. However, these procedures are not exclusive. Any measurement procedure and equipment that can result in an identic
42、al measurement is considered valid. While the procedures may call out specific test points within the requirements, the full range of the requirements take precedent over the test method. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1
43、111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:20:47 MDTNo reproduction or networking permitted without license from IHS -,-,- TIA-470.210-C 2 2 REFERENCES The following standards contain provisions, which, through reference in this text, constitute provisions of this Standard. At the ti
44、me of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of curren
45、tly valid national standards published by them. 2.1 NORMATIVE REFERENCES 1. ANSI/TIA-968-A-2002, Telecommunications Telephone Terminal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network. 2.2 INFORMATIVE REFERENCES 1. ANSI T1.401-2000, Network-to-Customer Installation Interfaces Analog Voicegrade Switched Access Lines Using Loop-Start and Ground-Start Signaling. Cop