1、 TIA-470.210-F (Revision of TIA-470.210-E) June 2016Telecommunications Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Telephones ANSI/TIA-470.210-F-2016 APPROVED: JUNE 16, 2016 NOTICE TIA Engineering Standards and Publications are designed to serve the publ
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7、IA TR-41 User Premises 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
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23、E OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-470.210-F i TABLE OF CONTENTS 1 . SCOPE . 1 2 . NORMATIVE REFERENCES . 2 3 . ABBREVIATIONS, ACRONYMS, AND DEFINITIONS . 3 3.1 . ABBREVIATIONS AND ACRONYMS . 3 3.2 . DEFINITIONS . 3 4 . TESTI
24、NG CONSIDERATIONS . 4 4.1 . GENERAL 4 4.1.1 Test Methods. 4 4.1.2 Test Points and Range of Requirements . 4 4.1.3 Test Equipment Performance 4 4.2 . DC FEED CIRCUIT . 4 5 . TECHNICAL REQUIREMENTS 6 5.1 . CATEGORIES OF CRITERIA 6 5.2 . PRODUCT APPLICATION CONSIDERATIONS 6 5.2.1 On-Hook Requirements M
25、odel . 6 5.2.2 Bandwidth Considerations 6 5.3 . DC-RESISTANCE 7 5.3.1 On-Hook Resistance . 7 5.3.2 Off-Hook Resistance . 9 5.3.3 Simulated Open Switch Interval Recovery Time . 10 5.4 . ON-HOOK IMPEDANCE . 11 5.4.1 dc Current During Ringing . 12 5.4.2 Metallic Impedance during Ringing . 13 5.4.3 Long
26、itudinal Impedance During Ringing . 14 5.4.4 Longitudinal Impedance for ac Power Induction from Power Lines 14 5.4.5 On-Hook Metallic Impedance (5 Hz to 200 Hz, 1 Vrms to 10 Vrms) 15 5.4.6 In-Band On-Hook Metallic Impedance (200 to 3200 Hz) 16 5.4.7 In-Band On-Hook Metallic Impedance (Wideband Exten
27、sion) 16 5.5 . OFF-HOOK METALLIC IMPEDANCE (RETURN LOSS) 18 5.5.1 Narrowband and Wideband Devices 18 5.5.2 Wideband Device Only . 20 5.6 . LONGITUDINAL BALANCE 21 5.6.1 Narrowband and Wideband Devices 21 5.6.2 Wideband Device Only . 21 ANNEX A (INFORMATIVE) SCALED ON-HOOK PERFORMANCE LIMITS BASED ON
28、 DEVICE QUANTITY CONNECTED AT THE CI . 22 ANNEX B (INFORMATIVE) ISO R-40 FREQUENCIES . 23 ANNEX C (INFORMATIVE) LONGITUDINAL BALANCE METHOD OF MEASUREMENT24 ANNEX D (INFORMATIVE) BIBLIOGRAPHY 26 ANSI/TIA-470.210-F ii TABLE OF FIGURES Figure 1 One possible dc Feed Circuit . 5 Figure 2 On-Hook Resista
29、nce Requirements . 7 Figure 3 On-Hook Resistance between Tip and Ring 8 Figure 4 On-Hook Resistance between Tip or Ring and Ground 8 Figure 5 V vs. I Characteristic Requirements 9 Figure 6 Off-Hook Resistance test setup . 10 Figure 7 Open Switch Interval test setup . 11 Figure 8 dc Current during Ri
30、nging Requirements 12 Figure 9 dc Current during Ringing test setup . 12 Figure 10 Metallic Impedance During Ringing Requirements 13 Figure 11 Metallic Impedance test setup . 13 Figure 12 Longitudinal Impedance test setup 14 Figure 13 On-Hook Metallic Impedance Requirements 15 Figure 14 In-Band On-H
31、ook Metallic Impedance Requirements 17 Figure 15 Return Loss Requirements for All Devices . 18 Figure 16 Return Loss Test Circuit 19 Figure 17 Return Loss Requirements for Wideband Devices 20 Figure 18 Longitudinal Balance Requirements 21 Figure C.1 Example Longitudinal Balance Test Setup 25 TABLE O
32、F TABLES Figure 1 One possible dc Feed Circuit . 5 Figure 2 On-Hook Resistance Requirements . 7 Figure 3 On-Hook Resistance between Tip and Ring 8 Figure 4 On-Hook Resistance between Tip or Ring and Ground 8 Figure 5 V vs. I Characteristic Requirements 9 Figure 6 Off-Hook Resistance test setup . 10
33、Figure 7 Open Switch Interval test setup . 11 Figure 8 dc Current during Ringing Requirements 12 Figure 9 dc Current during Ringing test setup . 12 Figure 10 Metallic Impedance During Ringing Requirements 13 Figure 11 Metallic Impedance test setup . 13 Figure 12 Longitudinal Impedance test setup 14
34、Figure 13 On-Hook Metallic Impedance Requirements 15 Figure 14 In-Band On-Hook Metallic Impedance Requirements 17 Figure 15 Return Loss Requirements for All Devices . 18 Figure 16 Return Loss Test Circuit 19 Figure 17 Return Loss Requirements for Wideband Devices 20 Figure 18 Longitudinal Balance Re
35、quirements 21 Figure C.1 Example Longitudinal Balance Test Setup 25 ANSI/TIA-470.210-F iii 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
36、 procedural guidelines, and represents the consensus of the subcommittee, which served as the formulating group. This document contains four annexes, all of which are informative and are not considered part of this Standard. The leadership of the TR-41.3 Subcommittee (Chair: James Bress, AST Technol
37、ogy Labs, Inc., Vice-Chair: Allen Woo, Plantronics Inc.) acknowledges the written contributions provided by the following individuals in the development of this standard. Organization Representative Previous Versions TIA-470.210-F AST Technology Labs Don McKinnon Editor Editor Whitesell Consulting L
38、LC Steve Whitesell Editor VTech Communications Steve Whitesell Editor RadioShack Rick Carey Editor Advent Instruments, Inc. Dave Stenner Atlinks Fred Bonhomme ISED Canada Jason Nixon - ISED Canada Magdoly Rondon Microsemi Semiconductor Inc. Michel Darveau Microtronix Systems Ltd. Ken Macdonald Sprin
39、t Amar Ray Uniden Al Baum Suggestions for improvement of this Standard are welcome. They should be sent to: Telecommunications Industry Association Technology and Standards Department Suite 200 1320 North Courthouse Road Arlington, VA 22201 (http:/www.tiaonline.org) ANSI/TIA-470.210-F iv Introductio
40、n The requirements and recommendations in this standard were originally included in the TIA-470-B standard (and previous versions of the TIA-470 standard). When TIA-470-B was revised, the requirements were divided into sub documents and ANSI/TIA-470.210-C was published with the requirements for the
41、Resistance and Impedance Performance Requirements for Analog Telephones. ANSI/TIA-470.210-D modified the test setups and procedures for on-hook resistance and longitudinal impedance testing. It also included Addendum C-1 regarding the Longitudinal Balance requirement. ANSI/TIA-470.210-E added wideba
42、nd requirements. This current revision removes Type-B ringing but retains Type-A. In 2015 TR41 received liaison confirmation from that support for Type-B ringing is no longer required. ANSI/TIA-470.210-F 1 Telephone Terminal Equipment Resistance and Impedance Performance Requirements for Analog Tele
43、phones 1 SCOPE This standard establishes criteria and procedures for evaluating the Resistance and Impedance performance of analog telephones and terminals. Such equipment may be connected to the Public Switched Telephone Network (PSTN) to provide traditional narrowband (300 to 3300 Hz) wireline tel
44、ephone service. It may also be connected to Analog Terminal Adapters (ATAs) and Voice Gateways (VGs) that provide packet-based services such as Voice over Internet Protocol (VoIP), some of which are capable of supporting wideband (100 to 7000 Hz) voice transmission. The dc resistance requirements an
45、d many of the ac impedance requirements in this Standard apply equally to equipment in both bandwidth categories. Where appropriate, extended frequency range impedance requirements are specified for equipment intended to be used in wideband applications. The recommended on-hook requirements are writ
46、ten with a model of five (5) devices attached to the Customer Interface (CI) and the minimum performance requirements are based on a model of three (3) devices. ANSI/TIA-470.210-F 2 2 NORMATIVE REFERENCES The following standards contain provisions, which, through reference in this text, constitute p
47、rovisions of this standard. At the time 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
48、 and TIA maintain registers of currently valid national standards published by them. 1. ANSI/TIA-968-B-2009, Telecommunications Telephone Terminal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network 2. ANSI/TIA-968-B-3-2016, Telecommunications Telephone Ter
49、minal Equipment Technical Requirements for Connection of Terminal Equipment to the Telephone Network - Addendum 3 ANSI/TIA-470.210-F 3 3 ABBREVIATIONS, ACRONYMS, AND DEFINITIONS 3.1 ABBREVIATIONS AND ACRONYMS For the purposes of this Standard, the following abbreviations and acronyms apply. ATA Analog Terminal Adapter AWG American Wire Gauge CI Customer Interface CO Central Office (Used broadly to describe the telephone switch connected to a subscr
