1、 TIA-470.230-C (Revision of TIA/EIA-470-B) December 2005Telecommunications Telephone Terminal Equipment Network Signaling Performance Requirements for Analog Telephones ANSI/TIA-470.230-C- 2005 APPROVED: DECEMBER 2, 2005 REAFFIRMED: OCTOBER 19, 2012 NOTICE TIA Engineering Standards and Publications
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23、lowing individuals in the development of this standard. Name Representing Position (If Applicable) Don McKinnon AST Technology Labs, Inc. Chair Dave Stenner Advent Instruments, Inc. Editor Franois Pinier Alcatel Ken Macdonald Microtronix Systems Ltd. Amar Ray Sprint Steve Whitesell VTech Jimmy Smith
24、 Wyle Labs The TR-41.3.8 Working Group, which had the technical responsibility during the development of this standard, had the following participating members. Name Representing James Bress AST Technology Labs Rick White CIDCO Communications Harry Van Zandt ESC Technologies Berndt Martenson ETSI Ri
25、ck Carey RadioShack Tom Harley Texas Instruments Al Baum Uniden Steve Kropp VTech Jay Farell Guest TIA-470.230-C ii TABLE OF CONTENTS 1. SCOPE_ 1 2. REFERENCES _ 2 2.1. NORMATIVE REFERENCES2 2.2. INFORMATIVE REFERENCES.2 3. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS _ 3 3.1. ABBREVIATIONS AND ACRONYMS
26、3 3.2. DEFINITIONS.3 4. TECHNICAL REQUIREMENTS_ 4 4.1. CATEGORIES OF CRITERIA .4 4.2. GENERAL.4 4.3. PULSE DIALING REQUIREMENTS.5 4.3.1. Pulse Train Composition 6 4.3.1.1. Requirements. 6 4.3.1.2. Method of Measurement . 6 4.3.2. Pulse Train Timing .7 4.3.2.1. Requirements. 7 4.3.2.2. Method of Meas
27、urement . 7 4.3.3. Inter-digit Interval.8 4.3.3.1. Requirements. 8 4.3.3.2. Method of Measurement . 8 4.3.4. Break and Make Interval Decay and Rise Time Response.9 4.3.4.1. Requirements. 9 4.3.4.2. Method of Measurement . 9 4.3.5. Dial Pulse Memory Dialing 11 4.3.5.1. Requirements11 4.3.5.2. Method
28、of Measurements.11 4.4. FLASH SIGNALING REQUIREMENTS .12 4.4.1. Flash Duration.12 4.4.1.1. Requirements12 4.4.1.2. Method of Measurement 12 4.4.2. Flash Interval Decay Response, Duration and Rise Time Response 12 4.4.2.1. Requirements12 4.4.2.2. Method of Measurement 12 4.5. DUAL TONE MULTI-FREQUENC
29、Y SIGNALING (DTMF) REQUIREMENTS14 4.5.1. General14 4.5.2. Composition15 4.5.2.1. Requirements15 4.5.3. Signaling Tone Frequencies15 4.5.3.1. Requirements15 4.5.3.2. Method of Measurement 15 4.5.4. Signaling Tone Power.16 4.5.4.1. Individual Tone Power .16 4.5.4.1.1. Requirements16 4.5.4.1.2. Method
30、of Measurement.16 TIA-470.230-C iii 4.5.4.2. Combined Tone Power 17 4.5.4.2.1. Requirements. 17 4.5.4.2.2. Method of Measurement 17 4.5.5. Spurious Frequency Components (Distortion). 18 4.5.5.1. Requirements. 18 4.5.5.2. Method of Measurement 18 4.5.6. DTMF Tone Leak. 19 4.5.6.1. Requirements. 19 4.
31、5.6.2. Method of Measurement 19 4.5.7. DTMF Signal Rise Time 19 4.5.7.1. Requirements. 19 4.5.7.2. Method of Measurement 19 4.5.8. DTMF Signal Duration 20 4.5.8.1. DTMF Manual Dialing 20 4.5.8.1.1. Requirements. 20 4.5.8.1.2. Method of Measurement 20 4.5.8.2. DTMF Memory Dialing 20 4.5.8.2.1. Requir
32、ements. 21 4.5.8.2.2. Method of Measurements 21 4.5.9. Suppression of Acoustic and Other Signals . 22 4.5.9.1. Send Acoustic Suppression .22 4.5.9.1.1. Requirements. 22 4.5.9.1.2. Method of Measurement 22 4.5.9.2. Receive Acoustic Suppression. 23 4.5.9.2.1. Requirements. 23 4.5.9.2.2. Method of Meas
33、urement 23 4.5.9.3. Non-DTMF Related Signal Suppression . 23 4.5.9.3.1. Requirements. 23 4.5.9.3.2. Method of Measurement 23 4.5.10. CPE Resistance during Signaling. 23 4.5.10.1. Requirements. 23 4.5.10.1.1. Method of Measurement 23 4.5.11. DTMF Signal Sidetone and Dialing Confirmation Tones 24 4.5.
34、11.1. Requirements. 24 4.5.11.2. Method of Measurement 24 4.5.12. DTMF Signaling following DC Line Transitions 24 4.5.12.1. Requirements. 24 4.5.12.2. Method of Measurement 24 ANNEX A (INFORMATIVE) NETWORK DIAL PULSE REQUIREMENTS _ 25 A.1 T1.401-2000 AND T1.401A-2001 REQUIREMENTS 25 A.2 DISCUSSION 2
35、5 ANNEX B (INFORMATIVE) DTMF SPURIOUS FREQUENCY CALCULATION EXAMPLE _ 26 TIA-470.230-C iv Table of Figures Figure 1 Pulse Dial Resistive Feed Circuit . 5 Figure 2 Pulse Dial Resistive Feed Circuit with Dial Tone Generator . 5 Figure 3 Pulse Dialing Waveform Example .7 Figure 4 Break Interval Decay R
36、esponse Requirement 9 Figure 5 Make Interval Rise Time Response Requirement 10 Figure 6 Make Interval Decay Response Requirement. 10 Figure 7 Flash Signal Response 13 Figure 8 DTMF Test Circuit . 14 Figure 9 DTMF Signal Power Levels. 16 Figure 10 DTMF Muting and Unmuting Example . 22 Figure B.1 DTMF
37、 SFC Example 26 Table of Tables Table 1: Dial Pulse Digits 6 Table 2: Pulse Timing Definitions. 8 Table 3: DTMF Digits and Corresponding Frequencies 15 TIA-470.230-C 1 1. SCOPE This standard defines the DTMF, Pulse Dial, and Flash network signaling performance requirements for Customer Premises Equi
38、pment (CPE) intended for connection to the Public Switched Telephone Network (PSTN). These requirements should ensure compatibility and satisfactory performance to the user in a high percentage of installations. Several performance measurement procedures are in use today, each of which yields standa
39、rdized measurement data that may be used for the comparison of different products. This document may reference only a single procedure or specific equipment, however the intent is not to be all-inclusive. Any measurement procedure and equipment that can result in an identical result is considered va
40、lid. While the procedures may call out specific test points within the requirements, the full range of the requirements take precedent. TIA-470.230-C 2 2. REFERENCES The following standards contain provisions, which, through reference in this text, constitute provisions of this standard. At the time
41、 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 currentl
42、y valid national standards published by them. 2.1. NORMATIVE REFERENCES 1. ANSI/TIA-470.110-C-2004, Telecommunications, Telephone Terminal Equipment, Handset Acoustic Performance Requirements for Analog Terminals 2. ANSI/TIA-470.210-C-2004, Telecommunications, Telephone Terminal Equipment, Resistanc
43、e and Impedance Performance Requirements for Analog Terminals 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 2. ANSI/TIA-777-A-2002- Telecommunications, Telephone Termina
44、l Equipment, Caller Identity and Visual Message Waiting Indicator Equipment Performance Requirements 3. ANSI/TIA-855-2001- Telecommunications, Telephone Terminal Equipment, Stutter Dial Tone Detection Device Performance Requirements 4. ANSI/TIA-968-A-2002- Telecommunications, Telephone Terminal Equi
45、pment, Technical Requirements for Connection of Terminal Equipment to the Telephone Network 5. 47 CFR Part 68.318 Code of Federal Regulations (CFR), Title 47, FCC Part 68, Connection of Terminal Equipment to the Telephone Network. TIA-470.230-C 3 3. ABBREVIATIONS, ACRONYMS, AND DEFINITIONS 3.1. ABBR
46、EVIATIONS AND ACRONYMS For the purposes of this Standard, the following abbreviations and acronyms apply. CPE Customer Premises Equipment DTMF Dual Tone Multiple Frequency SFC Spurious Frequency Components IVR Interactive Voice Response 3.2. DEFINITIONS For the purposes of this Standard, the followi
47、ng definitions apply. Line State: The condition of the Tip and Ring interface. It can be either In-Use or Idle. Off-Hook: The state of the CPE when the hook-switch is closed. This refers to the state of a particular CPE rather than the line state. On-Hook: The state of the CPE when the hook-switch i
48、s open. This refers to the state of a particular CPE rather than the line state. Central Office Used broadly to describe the switch connected to a subscribers line. dBm Power level in decibels, relative to a power of 1 mW (milliwatt). dBV Voltage level in decibels, relative to 1 volt rms. dBPa: Soun
49、d pressure level in decibels, relative to a sound pressure of 1 Pa (pascal). Break Interval In pulse dialing, that portion of the dial pulse in which the CPE is momentarily in an on-hook state. Make Interval In pulse dialing, that portion of the dial pulse in which the CPE is momentarily in an off-hook
