1、 TIA-470.230-D (Revision of TIA-470.230-C) October 2017Telecommunications Telephone Terminal Equipment Network Signaling Performance Requirements for Analog Telephones ANSI/TIA-470.230-D-2017 APPROVED: OCTOBER 11, 2017 NOTICE TIA Engineering Standards and Publications are designed to serve the publi
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23、UNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. ANSI/TIA-PN-470.230-D i TABLE OF CONTENTS 1 SCOPE . 1 2 NORMATIVE REFERENCES . 2 3 ABBREVIATIONS, ACRONYMS, AND DEFINITIONS . 3 3.1 DEFINITIONS . 3 3.2 ABBREVIATIONS AND A
24、CRONYMS . 4 4 TECHNICAL REQUIREMENTS 5 4.1 CATEGORIES OF CRITERIA 5 4.2 GENERAL 5 4.2.1 Test Methods. 5 4.2.2 Test Points and Range of Requirements . 5 4.2.3 Test Equipment Performance 5 4.3 PULSE DIALING REQUIREMENTS 6 4.3.1 Pulse Train Composition 7 4.3.2 Pulse Train Timing . 8 4.3.3 Inter-digit I
25、nterval . 9 4.3.4 Break and Make Interval Decay and Rise Time Response . 10 4.3.5 Dial Pulse Memory Dialing 12 4.4 FLASH SIGNALING REQUIREMENTS 13 4.4.1 Flash Duration . 13 4.4.2 Flash Interval Decay Response, Duration and Rise Time Response 13 4.5 DUAL TONE MULTI-FREQUENCY SIGNALING (DTMF) REQUIREM
26、ENTS . 15 4.5.1 General 15 4.5.2 Composition 16 4.5.3 Signaling Tone Power Individual Tone Power 17 4.5.4 Signaling Tone Power Combined Tone Power 18 4.5.5 Spurious Frequency Components (Distortion) . 19 4.5.6 DTMF Tone Leak . 19 4.5.7 DTMF Signal Rise Time . 20 4.5.8 DTMF Signal Duration DTMF Manua
27、l Dialing 20 4.5.9 DTMF Signal Duration DTMF Memory Dialing 21 4.5.10 Suppression of Signals Send Acoustic Suppression 22 4.5.11 Suppression of Signals Receive Acoustic Suppression . 23 4.5.12 Suppression of Signals Non-DTMF Related Signal Suppression 23 4.5.13 DC Resistance during DTMF Signaling .
28、23 4.5.14 DC Resistance during Signaling . 23 4.5.15 DTMF Signal Sidetone and Dialing Confirmation Tones 24 4.5.16 DTMF Signaling following DC Line Transitions . 24 ANNEX A (INFORMATIVE) NETWORK DIAL PULSE REQUIREMENTS . 25 A.1 ATIS 0600401.2006(R2011) REQUIREMENTS . 25 A.2 DISCUSSION 25 ANNEX B (IN
29、FORMATIVE) DTMF SPURIOUS FREQUENCY CALCULATION EXAMPLE26 ANNEX C (INFORMATIVE) BIBLIOGRAPHY 27 ANSI/TIA-PN-470.230-D ii TABLE OF FIGURES Figure 1 Pulse Dial Resistive Feed Circuit 6 Figure 2 Pulse Dial Resistive Feed Circuit with Dial Tone Generator 6 Figure 3 Pulse Dialing Waveform Example 8 Figure
30、 4 Break Interval Decay Response Requirement . 10 Figure 5 Make Interval Rise Time Response Requirement . 11 Figure 6 Make Interval Decay Response Requirement 11 Figure 7 Flash Signal Response . 14 Figure 8 DTMF Test Circuit 15 Figure 9 DTMF Signal Power Levels 17 Figure 10 DTMF Muting and Unmuting
31、Example 22 Figure B.1 DTMF SFC Example . 26 TABLE OF TABLES Table 1: Dial Pulse Digits . 7 Table 2: Pulse Timing Definitions 9 Table 3: DTMF Digits and Corresponding Frequencies . 16 ANSI/TIA-PN-470.230-D iii FOREWORD (This foreword is not part of this Standard.) This document is a TIA Telecommunica
32、tions standard produced by Working Group TR-41.3.5 of Committee TR-41. This 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. This document contai
33、ns three annexes, all of which are informative and are not considered part of this Standard. The leadership of the TR-41.3.5 Working Group (Chair: Steve Whitesell, Whitesell Consulting) acknowledges the written contributions provided by the following individuals in the development of this standard.
34、Organization Representative TIA-470.230-D AST Technology Labs Don McKinnon Editor Whitesell Consulting Steve Whitesell Suggestions for improvement of this Standard are welcome. They should be sent to: Telecommunications Industry Association Technology and Standards Department Suite 200 1320 North Co
35、urthouse Road Arlington, VA 22201 (http:/www.tiaonline.org) ANSI/TIA-PN-470.230-D iv Introduction 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 wer
36、e divided into sub documents and ANSI/TIA-470.230-C was published with the requirements for the Network Signaling Performance Requirements for Analog Telephones. This current revision broadens the Scope to indicate the document covers network signaling requirements for analog telephones and devices
37、that may be connected to Analog Terminal Adapters (ATAs) and Voice Gateways (VGs) in addition to the Public Switched Telephone Network (PSTN). The document structure and references were also updated, but no technical changes were made to the signaling requirements. ANSI/TIA-PN-470.230-D 1 TELEPHONE
38、TERMINAL EQUIPMENT NETWORK SIGNALING PERFORMANCE 1 REQUIREMENTS FOR ANALOG TELEPHONES 2 3 1 SCOPE 4 This standard establishes criteria and procedures for evaluating the DTMF, Pulse Dial, and Flash network 5 signaling performance of analog telephones and terminals. Such equipment may be connected to
39、the 6 Public Switched Telephone Network (PSTN) to provide traditional narrowband (300 to 3300 Hz) wireline 7 telephone service. It may also be connected to Analog Terminal Adapters (ATAs) and Voice Gateways 8 (VGs) that provide packet-based services such as Voice over Internet Protocol (VoIP), some
40、of which are 9 capable of supporting wideband (100 to 7000 Hz) voice transmission. 10 These requirements should ensure compatibility and satisfactory performance to the user in a high 11 percentage of installations. 12 13 ANSI/TIA-PN-470.230-D 2 2 NORMATIVE REFERENCES 14 The following standards cont
41、ain provisions, which, through reference in this text, constitute provisions of 15 this standard. At the time of publication, the editions indicated were valid. All standards are subject to 16 revision, and parties to agreements based on this standard are encouraged to investigate the possibility of
42、 17 applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of 18 currently valid national standards published by them. 19 20 1. ANSI/TIA-470.110-D-2014, Telecommunications, Telephone Terminal Equipment, Transmission 21 Requirements for Analog Telephones w
43、ith Handsets 22 2. ANSI/TIA-470.210-F-2016, Telecommunications, Telephone Terminal Equipment, Resistance and 23 Impedance Performance Requirements for Analog Terminals 24 25 ANSI/TIA-PN-470.230-D 3 3 ABBREVIATIONS, ACRONYMS, AND DEFINITIONS 26 3.1 DEFINITIONS 27 For the purposes of this Standard, th
44、e following definitions apply. 28 Analog Terminal Adaptor (ATA): A device with analog telephone ports for the connection of analog 29 telephone equipment via in-house wiring. (470.110-E draft) 30 Central Office Used broadly to describe the switch connected to a subscribers line. 31 Electrical and Ac
45、oustical Units: The following units are used in this standard: 32 dBm Power level in decibels, relative to a power of 1 mW (milliwatt). 33 dBV Voltage level in decibels, relative to 1 volt rms. 34 dBPa: Sound pressure level in decibels, relative to a sound pressure of 1 Pa 35 (pascal). 36 Free Field
46、: Sound field in a homogenous, isotropic medium free from boundaries. In 37 practice, the effects of boundaries on a free field are negligible over the region of 38 interest. 39 Line State: The condition of the Tip and Ring interface. It can be either In-Use or Idle. 40 Off-Hook: The state of the DU
47、T when the hook-switch is closed. This refers to the state of a 41 particular DUT rather than the line state. 42 On-Hook: The state of the DUT when the hook-switch is open. This refers to the state of a 43 particular DUT rather than the line state. 44 Pulse Dial Intervals: The following are used in
48、this standard: 45 Break Interval In pulse dialing, that portion of the dial pulse in which the DUT is 46 momentarily in an on-hook state. 47 Make Interval In pulse dialing, that portion of the dial pulse in which the DUT is 48 momentarily in an off-hook state. 49 Inter-Digit Interval The time period
49、 between Pulse or DTMF digits during buffered or 50 memory dialing. 51 Reference Triangle The Reference Triangle is the physical dimensions for the placement of the 52 measuring microphone face from the device. The dimensions are 40cm 53 horizontal, 30cm vertical, which provides a distance of 50 cm to the device. See 54 ANSI/TIA-470.120-D. 55 Voice Gateway: A device that routes packetized voice from one end-point to another and may 56 provide additional functions such as voice coding, compression, and echo 57 cancellation. 58 ANSI/TIA-P
