1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 60728-13-1:2012Incorporating corrigendum January 2013Cable networks for television signals, sound signals and interactive servicesPart 13-1: Bandwith expansion for broadcas
2、t signal over FTTH systemBS EN 60728-13-1:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 60728-13-1:2012, incorporating corrigendum April 2013. It is identical to IEC 60728-13-1:2012.The UK participation in its preparation was entrusted toTechnical Committ
3、ee EPL/100, Audio, video and multimediasystems and equipment, to Subcommittee EPL/100/4, Cable distribution equipment and systems.A list of organizations represented on this subcommittee canbe obtained on request to its secretary.This publication does not purport to include all the necessaryprovisio
4、ns of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 82244 5 ICS 33.060.40; 33.160.01; 33.180.01 Compliance with a British Standard cannot confer immunityfrom legal obligations.This British St
5、andard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2012.Amendments/corrigenda issued since publicationDate Text affected30 April 2013 Implementation of CENELEC corrigendum January 2013: Error in standard titles correctedBS EN 60728-13-1:2012EUROPEA
6、N STANDARD EN 60728-13-1 NORME EUROPENNEEUROPISCHE NORM August 2012 CENELEC European Committee for Electrotechnical StandardizationComit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All
7、 rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60728-13-1:2012 E ICS 33.160.01; 33.180.01 English version Cable networks for television signals, sound signals and interactive services - Part 13-1: Brandwith expansion for broadcast signal over
8、 FTTH system (IEC 60728-13-1:2012) Rseaux de distribution par cbles pour signaux de tlvision, signaux de radiodiffusion sonore et servicesinteractifs - Partie 13-1: Extension de marque pour le signal de diffusion sur le systmeFTTH (CEI 60728-13-1:2012) Kabelnetze fr Fernsehsignale,Tonsignale und int
9、eraktive Dienste - Teil 13-1: Bandbreitenerweiterung fr Rundfunksignale in FTTH-Systemen(IEC 60728-13-1:2012) This European Standard was approved by CENELEC on 2012-06-13. CENELEC members are bound to complywith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Euro
10、pean Standardthe status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versi
11、ons (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language and notifiedto the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical commit
12、tees of Austria, Belgium, Bulgaria, Croatia, Cyprus,the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,Portugal, Romania, Slovakia, Slove
13、nia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Incorporating corrigendum January 2013Part 13-1: Bandwidth expansion for broadcastsignal over FTTH systemPartie 13-1: Extension de la largeur de bande pour le signal de diffusion sur le systme FTTHBS EN 60728-13-1:2012- 2 - Foreword The
14、 text of document 100/1801/CDV, future edition 1 of IEC 60728-13-1, prepared by Technical Area 5 “Cable networks for television signals, sound signal and interactive services“ of IEC/TC 100 “Audio, video and multimedia systems and equipment“ was submitted to the IEC-CENELEC parallel vote and approve
15、d by CENELEC as EN 60728-13-1:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-03-13 latest date by which the national standards conflicting with the document h
16、ave to be withdrawn (dow) 2015-06-13 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International
17、Standard IEC 60728-13-1:2012 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60068 series NOTE Harmonised as EN 60068 series (not modified). IEC 60825-1 NOTE Harm
18、onised as EN 60825-1. IEC 60825-2 NOTE Harmonised as EN 60825-2. IEC 60825-12 NOTE Harmonised as EN 60825-12. IEC 60875-1 NOTE Harmonised as EN 60875-1. IEC 61280-1-1 NOTE Harmonised as EN 61280-1-1. IEC 61280-2-9 NOTE Harmonised as EN 61280-2-9. IEC 61281-1 NOTE Harmonised as EN 61281-1. IEC 61290-
19、1-2 NOTE Harmonised as EN 61290-1-2. IEC 61290-1-3 NOTE Harmonised as EN 61290-1-3. IEC 61291-1:2006 NOTE Harmonised as EN 61291-1:2006 (not modified). IEC 61300-3-2 NOTE Harmonised as EN 61300-3-2. IEC 61754-13 NOTE Harmonised as EN 61754-13. IEC 61755-1 NOTE Harmonised as EN 61755-1. EN 60728-13-1
20、:2012 BS EN 60728-13-1:2012- 3 - EN 60728-13-1:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicati
21、on. 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 modifications, indicated by (mod), the relevant EN/HD applies. Public
22、ation Year Title EN/HD YearIEC 60068-1 + corr. October 1988 1988 Environmental testing - Part 1: General and guidance EN 60068-11)1994 IEC 60728-1 2007 Cable networks for television signals, sound signals and interactive services - Part 1: System performance of forward pathsEN 60728-1 2008 IEC 60728
23、-6 2011 Cable networks for television signals, sound signals and interactive services - Part 6: Optical equipment EN 60728-6 2011 IEC 60728-13 + corr. August 2010 2010 Cable networks for television signals, sound signals and interactive services - Part 13: Optical systems for broadcast signal transm
24、issions EN 60728-13 2010 IEC 61280-1-3 - Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Central wavelength and spectral width measurement EN 61280-1-3 - ITU-T Recommendation G.694.1 - Spectral grids for WDM applications: DWDM frequency grid - - ITU
25、-T Recommendation G. 94.2 - Spectral grids for WDM applications: CWDM wavelength grid - - 1) EN 60068-1 includes A1 to IEC 60068-1 + corr. October. 2 60728-13-1 IEC:2012(E) CONTENTS FOREWORD 5 INTRODUCTION . 7 1 Scope . . 8 2 Normative references . 8 3 Terms, definitions, symbols and abbreviations 8
26、 3.1 Terms and definitions . 8 3.2 Symbols . 16 3.3 Abbreviations . . 17 4 Optical system reference model. . 18 5 Preparation of measurement . 19 5.1 Environmental conditions . . 19 5.1.1 Standard measurement conditions 19 5.1.2 Standard operating condition . 19 5.1.3 Standard signal and measuring e
27、quipment . 19 5.2 Accuracy of measuring equipment 20 5.3 Source power . . 20 6 Methods of measurement . . 20 6.1 Measuring points and parameters . 20 6.1.1 General . 20 6.1.2 Measuring points . 20 6.1.3 Measuring parameters . . 21 6.2 Optical power . 22 6.3 Optical wavelength . 22 6.4 Carrier level
28、and carrier-to-noise ratio . 22 6.4.1 General . 22 6.4.2 Measurement setup . 22 6.4.3 Measurement conditions . 23 6.4.4 Measurement method for xPSK signals . 23 6.4.5 Presentation of the results 23 6.5 Carrier-to-noise ratio defined by optical signal . 23 6.5.1 General . 23 6.5.2 Measuring points an
29、d measurement setup . . 23 6.5.3 Measurement conditions . 24 6.5.4 System RIN measurement method 24 6.5.5 C/N calculation based on RIN value 26 6.5.6 Calculation of component RIN 27 6.6 Optical modulation index . 27 6.7 Carrier-to-crosstalk ratio (CCR) . 28 7 Specification of optical system for broa
30、dcast signal transmission . 28 7.1 Analogue and digital broadcast system over optical network . 28 7.2 International TV systems . 28 7.3 Relationship between RIN and C/N . . 29 7.4 Optical wavelength . 31 7.5 Frequency of source signal . 32 BS EN 60728-13-1:2012 EN 60728-13-1:2012 2 60728-13-1 IEC:2
31、012(E) CONTENTS FOREWORD 5 INTRODUCTION . 7 1 Scope . . 8 2 Normative references . 8 3 Terms, definitions, symbols and abbreviations 8 3.1 Terms and definitions . 8 3.2 Symbols . 16 3.3 Abbreviations . . 17 4 Optical system reference model. . 18 5 Preparation of measurement . 19 5.1 Environmental co
32、nditions . . 19 5.1.1 Standard measurement conditions 19 5.1.2 Standard operating condition . 19 5.1.3 Standard signal and measuring equipment . 19 5.2 Accuracy of measuring equipment 20 5.3 Source power . . 20 6 Methods of measurement . . 20 6.1 Measuring points and parameters . 20 6.1.1 General .
33、20 6.1.2 Measuring points . 20 6.1.3 Measuring parameters . . 21 6.2 Optical power . 22 6.3 Optical wavelength . 22 6.4 Carrier level and carrier-to-noise ratio . 22 6.4.1 General . 22 6.4.2 Measurement setup . 22 6.4.3 Measurement conditions . 23 6.4.4 Measurement method for xPSK signals . 23 6.4.5
34、 Presentation of the results 23 6.5 Carrier-to-noise ratio defined by optical signal . 23 6.5.1 General . 23 6.5.2 Measuring points and measurement setup . . 23 6.5.3 Measurement conditions . 24 6.5.4 System RIN measurement method 24 6.5.5 C/N calculation based on RIN value 26 6.5.6 Calculation of c
35、omponent RIN 27 6.6 Optical modulation index . 27 6.7 Carrier-to-crosstalk ratio (CCR) . 28 7 Specification of optical system for broadcast signal transmission . 28 7.1 Analogue and digital broadcast system over optical network . 28 7.2 International TV systems . 28 7.3 Relationship between RIN and
36、C/N . . 29 7.4 Optical wavelength . 31 7.5 Frequency of source signal . 32 BS EN 60728-13-1:2012 EN 60728-13-1:201260728-13-1 IEC:2012(E) 3 7.6 Optical system specification for satellite signal transmission . . 32 7.7 C/N ratio specification for in-house and in-building wirings 32 7.8 Crosstalk due
37、to optical fibre non-linearity 33 7.9 Single frequency interference level due to fibre non-linearity . . 33 7.10 Environment condition 33 Annex A (informative) Actual service systems and design considerations 34 Annex B (informative) Wavelength division multiplexing 46 Annex C (informative) Minimum
38、wavelength separation 53 Annex D (informative) Relation between C/N degradation and rain attenuation . 57 Bibliography . 59 Figure 1 FTTH Cable TV system using one-wavelength . 18 Figure 2 FTTH Cable TV system using two wavelengths 18 Figure 3 Performance specified points of the optical system . 19
39、Figure 4 Measuring points in a typical video distribution system . 21 Figure 5 Measurement of optical wavelength using WDM coupler 22 Figure 6 Measurement of carrier level and carrier-to-noise ratio . 22 Figure 7 Measuring points in a typical FTTH system . . 23 Figure 8 RIN measurement setup . 24 Fi
40、gure 9 Performance allocation and measuring points 28 Figure 10 Section of C/N ratio specification (38 dB) for in-house wiring . 33 Figure 11 Section of C/N ratio specification (24 dB) for in-building wiring (in case of coaxial cable distribution after V-ONU) 33 Figure A.1 Example of a multi-channel
41、 service system of one million terminals . 34 Figure A.2 Example of a multi-channel service system of 2 000 terminals . . 35 Figure A.3 Example of a multi-channel with CS supplementary service system of 2 000 terminals . 35 Figure A.4 Example of retransmission service system with 144 terminals 36 Fi
42、gure A.5 Example of retransmission service system with 72 terminals 36 Figure A.6 System performance calculation Model No.1 . 39 Figure A.7 System performance calculation Model No.2 . 40 Figure A.8 System performance calculation Model No.3 . 41 Figure A.9 System performance calculation Model No.4 .
43、42 Figure A.10 System performance calculation Model No.5 . 43 Figure A.11 System performance calculation model No.6 . 44 Figure B.1 Linear crosstalk between two wavelengths . . 49 Figure B.2 Wavelength dependency of Raman crosstalk 50 Figure B.3 Nonlinear crosstalk between two wavelengths . 50 Figur
44、e B.4 Frequency dependency of cross phase modulation 51 Figure B.5 C/N degradation (two wavelengths into one V-ONU case) . . 52 Figure C.1 Experimental results of RIN degradation due to optical beat 54 Figure C.2 Wavelength variation of DWDM transmitter against ambient temperature . 54 Figure C.3 Wa
45、velength variation of CWDM transmitter against ambient temperature . 55 Figure C.4 Example of wavelength division multiplexing using WDM filter . . 55 BS EN 60728-13-1:2012 EN 60728-13-1:2012 4 60728-13-1 IEC:2012(E) Figure C.5 Example of CWDM filter design . . 56 Figure C.6 Example of wavelength di
46、vision multiplexing using optical coupler 56 Table 1 Level of RF signals . 13 Table 2 Measuring instruments . 20 Table 3 Measuring points and measured parameters 21 Table 4 Parameters used to calculate the C/N when signals of multiple wavelengths are received by a single V-ONU . 27 Table 5 Minimum R
47、F signal-to-noise ratio requirements in operation 28 Table 6 Types of broadcast services 30 Table 7 Type of service and minimum operational RIN values for Satellite services . 31 Table 8 Performance of optical wavelength and power . 31 Table 9 Optical system specification 32 Table 10 Section of C/N
48、ratio specification for in-house/in-building wiring . 32 Table 11 Interference level due to fibre non-linearity . 33 Table A.1 Basic system parameters . 37 Table B.1 Example nominal central frequencies of the DWDM grid 47 Table B.2 Nominal central wavelength for spacing of 20 nm (ITU-T G.694.2) . 49
49、 BS EN 60728-13-1:2012 EN 60728-13-1:2012 4 60728-13-1 IEC:2012(E) Figure C.5 Example of CWDM filter design . . 56 Figure C.6 Example of wavelength division multiplexing using optical coupler 56 Table 1 Level of RF signals . 13 Table 2 Measuring instruments . 20 Table 3 Measuring points and measured parameters 21 Table 4 Parameters used to calculate the C/N when signals of multiple wavelengths are received by a single V-ONU . 27 Table 5
