《BS EN 60728-1-2-2009 电视信号、声音信号和交互式设备用电缆网络.运行系统出口信号传输的性能要求.pdf》由会员分享，可在线阅读，更多相关《BS EN 60728-1-2-2009 电视信号、声音信号和交互式设备用电缆网络.运行系统出口信号传输的性能要求.pdf（38页珍藏版）》请在三一文库上搜索。
1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication Cable networks for television signals, sound signals and interactive services Part 1-2: Performance requirements for signals delivered at the system outlet in operation BS EN
2、60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI National foreword This British Standard is the UK implementation of EN 60728-1-2:2009. It is identical to IEC 60728-1-2:2009. The UK participation in its preparation was entrusted to
3、 Technical Committee EPL/100, Audio, video and multimedia systems and equipment. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its c
4、orrect application. BSI 2010 ISBN 978 0 580 63773 5 ICS 33.120.10; 33.160.01; 35.110 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2010 Amendments
5、issued since publication Amd. No. Date Text affected BRITISH STANDARDBS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m EUROPEAN STANDARD EN 60728-1-2 NORME EUROPENNE EUROPISCHE NORM September 2009 CEN
6、ELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved world
7、wide for CENELEC members. Ref. No. EN 60728-1-2:2009 E ICS 33.160; 35.110; 33.120.10 English version Cable networks for television signals, sound signals and interactive services - Part 1-2: Performance requirements for signals delivered at the system outlet in operation (IEC 60728-1-2:2009) Rseaux
8、de distribution par cbles pour signaux de tlvision, signaux de radiodiffusion sonore et services interactifs - Partie 1-2: Exigences de performance relatives aux signaux dlivrs la prise terminale en fonctionnement (CEI 60728-1-2:2009) Kabelnetze fr Fernsehsignale, Tonsignale und interaktive Dienste
9、- Teil 1-2: Leistungsanforderungen an Signale der Teilnehmeranschlussdose im realen Betrieb (IEC 60728-1-2:2009) This European Standard was approved by CENELEC on 2009-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
10、European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions
11、(English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Aust
12、ria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. B
13、S EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m EN 60728-1-2:2009 - 2 - Foreword The text of document 100/1531/FDIS, future edition 1 of IEC 60728-1-2, prepared by technical area 5: Cable networks fo
14、r television signals, sound signals and interactive services, of IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60728-1-2 on 2009-07-01. The following dates were fixed: latest date by which the EN has to
15、 be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-07-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Int
16、ernational Standard IEC 60728-1-2:2009 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60728-10 NOTE Harmonized as EN 60728-10:2006 (not modified). _ BS EN 60728-1-2
17、:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m - 3 - EN 60728-1-2:2009 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenc
18、ed documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modi
19、fications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050-705 -1) International Electrotechnical Vocabulary (IEV) - Chapter 705: Radio wave propagation - - IEC 60050-712 -1) International Electrotechnical Vocabulary (IEV) - Chapter 712: Antennas - - IEC 6
20、0050-725 -1) International Electrotechnical Vocabulary (IEV) - Chapter 725: Space radiocommunications - - IEC 60728-1 2007 Cable networks for television signals, sound signals and interactive services - Part 1: System performance of forward paths EN 60728-1 2008 IEC 60728-1-1 -2) Cable networks for
21、television signals, sound signals and interactive services - Part 1-1: RF cabling for two way home networks EN 60728-1-1 -2) IEC 60728-3 -1) Cable networks for television signals, sound signals and interactive services - Part 3: Active wideband equipment for coaxial cable networks EN 60728-3 20063)
22、IEC 60966-2-4 -1) Radio frequency and coaxial cable assemblies - Part 2-4: Detail specification for cable assemblies for radio and TV receivers - Frequency range 0 MHz to 3 000 MHz, IEC 61169-2 connectors EN 60966-2-4 20093) IEC 60966-2-5 -1) Radio frequency and coaxial cable assemblies - Part 2-5:
23、Detail specification for cable assemblies for radio and TV receivers - Frequency range 0 MHz to 1 000 MHz, IEC 61169-2 connectors EN 60966-2-5 20093) IEC 60966-2-6 -1) Radio frequency and coaxial cable assemblies - Part 2-6: Detail specification for cable assemblies for radio and TV receivers - Freq
24、uency range 0 MHz to 3 000 MHz, IEC 61169-24 connectors EN 60966-2-6 20093) 1) Undated reference. 2) At draft stage. 3) Valid edition at date of issue BS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m
25、 EN 60728-1-2:2009 - 4 - Publication Year Title EN/HD Year ITU-R Recommendation BT.500-7 -1) Methodology for the subjective assessment of the quality of television pictures - - ITU-R Recommendation B.654 -1) Subjective quality of television pictures in relation to the main impairments of the analogu
26、e composite television signal - - ITU-R Recommendation B.655 -1) Radio-frequency protection ratios for AM vestigial sideband terrestrial television systems interfered with by unwanted analogue vision signals and their associated sound signals - - ITU-T Recommendation J.61 -1) Transmission performanc
27、e of television circuits designed for use in international connections - - ITU-T Recommendation J.63 -1) Insertion of test signals in the field-blanking interval of monochrome and colour television signals - - - - Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for
28、 11/12 GHz satellite services ETSI EN 300 421 -1) - - Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for cable systems ETSI EN 300 429 -1) - - Digital Video Broadcasting (DVB); Satellite Master Antenna Television (SMATV) distribution systems ETSI EN 300 473 -1) -
29、- Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television ETSI EN 300 744 -1) - - Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Ga
30、thering and other broadband satellite applications ETSI EN 302 307 -1) BS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m 2 60728-1-2 IEC:2009(E) CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative reference
31、s .8 3 Terms, definitions, symbols and abbreviations10 3.1 Terms and definitions10 3.2 Abbreviations 15 4 Methods of measurement .16 5 Subjective quality of television pictures in relation to the main impairments of the analogue composite television signal17 5.1 Subjective quality scale.17 5.2 Subje
32、ctive quality and objective parameters17 6 Summation of the impairments .20 6.1 Impairments to be summed .20 6.2 Summation laws 21 6.2.1 General .21 6.2.2 Voltage addition 21 6.2.3 Power addition.22 6.3 Examples 22 7 Performance requirements in operation 22 7.1 General.22 7.2 Impedance 23 7.3 Perfor
33、mance requirements at the terminal input 23 7.3.1 Definition.23 7.3.2 Signal level23 7.3.3 Other parameters 23 7.4 Performance requirements at system outlets .23 7.4.1 Minimum and maximum carrier levels 23 7.4.2 Mutual isolation between system outlets23 7.4.3 Isolation between individual outlets in
34、one household24 7.4.4 Isolation between forward and return path .24 7.4.5 Long-term frequency stability of distributed carrier signals at any system outlet.24 7.4.6 Carrier level differences at system outlet.24 7.4.7 Frequency response within a television channel 24 7.4.8 Random noise at system outl
35、et24 7.4.9 Interference to television channels 26 Annex A (normative) RF carrier to noise ratio 28 Annex B (informative) Examples of summation of impairments.31 Bibliography33 Figure 1 CATV/MATV/SMATV cable network Performance requirements 8 Figure 2 Examples of location of HNI for various home netw
36、ork types13 Figure 3 Signal to echo ratio (dB) versus echo delay (s) 20 Figure A.1 Example of a TV receiver IF filter (systems B and G)28 BS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m 60728-1-2 IE
37、C:2009(E) 3 Figure A.2 Example of a demodulated TV signal (systems B and G) 29 Table 1 Methods of measurement of IEC 60728-1 applicable in operation17 Table 2 Impairment units versus subjective quality.17 Table 3 Impairment grade versus un-weighted white noise 18 Table 4 Impairment grade versus diff
38、erential gain19 Table 5 Impairment grade versus differential phase .19 Table 6 Impairment grade versus short time linear distortion (2T pulse).19 Table 7 Impairment grade versus chrominance-luminance gain inequality19 Table 8 Impairment grade versus chrominance-luminance delay inequality19 Table 9 I
39、mpairment grade versus echo rating (1s echo delay)20 Table 10 Correction factors to be applied for delays different than 1 s .20 Table 11 Carrier-to-noise ratios and RF signal-to-noise ratios at system outlet (television) in operation 25 Table 12 Carrier-to-noise ratios at system outlet (radio) in o
40、peration .26 Table B.1 Examples of voltage addition .31 Table B.2 Examples of power addition .32 BS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m 6 60728-1-2 IEC:2009(E) INTRODUCTION Standards of the
41、 IEC 60728 series deal with cable networks including equipment and associated methods of measurement for headend reception, processing and distribution of television signals, sound signals and their associated data signals, and for processing, interfacing and transmitting all kinds of signals for in
42、teractive services using all applicable transmission media. This includes CATV1F1F1F0F1-networks, MATV-networks and SMATV-networks, individual receiving networks and all kinds of equipment, systems and installations installed in such networks. The extent of this standardization work is from the ante
43、nnas and/or special signal source inputs to the headend or other interface points to the network up to the terminal input. The standardization of any user terminals (i.e. tuners, receivers, decoders, multimedia terminals, etc.) as well as of any coaxial, balanced and optical cables and accessories t
44、hereof is excluded. The reception of television signals inside a building requires an outdoor antenna and a distribution network to convey the signal to the TV receivers. This part of IEC 60728 deals with the requirements that must be fulfilled at the system outlet or terminal input, when the CATV/M
45、ATV/SMATV system is in operation. These performance requirements for signals at the system outlet or terminal input in operation are derived from considerations of the characteristics of the received signals at the input of the headend (see Clause 6 of IEC 60728-1) and the summation of the impairmen
46、ts produced by the headend, the CATV/MATV/SMATV network and the home network, when the requirements given in IEC 60728-1 and IEC 60728-1-1 are fulfilled. This document gives the guidelines for calculation of the operational characteristics at system outlet, taking into account the performance requir
47、ements of the CATV/MATV/SMATV network, of the home networks and of the received signals, given in the International Standards IEC 60728-1 and 60728-1-1 prepared by TA 5: Cable networks for television signals, sound signals and interactive services, of IEC technical committee 100: Audio, video and mu
48、ltimedia systems and equipment. 1 This word encompasses the Hybrid Fibre Coaxial (HFC) networks used nowadays to provide telecommunications services, voice, data, audio and video both broadcast and narrowcast. BS EN 60728-1-2:2009 Licensed Copy: athen reading, Reading University Library, 23/01/2010
49、05:11, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m 60728-1-2 IEC:2009(E) 7 CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES Part 1-2: Performance requirements for signals delivered at the system outlet in operation 1 Scope This part of IEC 60728 provides the minimum performance requirements to be fulfilled in operation at the system outlet or terminal input and describes