IEC 60728-13-1:2017(E) is the precise description of an FTTH (fibre to the home) system for expanding broadband broadcast signal transmission from CATV services only, towards CATV plus broadcast satellite (BS) plus communication satellite (CS) services, additionally to other various signals such as data services. This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. – Transmission frequency was expanded in order to achieve satellite signal for 4 K video service. The transmission frequency over FTTH would be 3 300 MHz. – High signal modulation case like 16 APSK and 32 APSK was added in order to correspond to transmission for 4 K video service. The contents of the corrigendum of September 2017 have been included in this copy.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Tables Table 1 \u2013 Level of RF signals <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 3.2 Symbols <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 3.3 Abbreviated terms <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 4 Overview 5 Optical system reference model <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Figures Figure 1 \u2013 FTTH Cable TV system using one-wavelength Figure 2 \u2013 FTTH Cable TV system using two wavelengths Figure 3 \u2013 Performance specified points of the optical system <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 6 Preparation of measurement 6.1 Environmental conditions 6.1.1 Standard measurement conditions 6.1.2 Standard operating condition 6.1.3 Standard signal and measuring equipment <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6.2 Accuracy of measuring equipment 6.3 Source power 7 Methods of measurement 7.1 Measuring points Table 2 \u2013 Measuring instruments <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 7.2 Measuring parameters Figure 4 \u2013 Measuring points in a typical video distribution system Table 3 \u2013 Measuring points and measured parameters <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 7.3 Optical power 7.4 Optical wavelength 7.5 Signal level and signal-to-noise ratio 7.5.1 General 7.5.2 Measurement setup Figure 5 \u2013 Measurement of optical wavelength <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 7.5.3 Measurement conditions 7.5.4 Measurement method for xPSK signals 7.5.5 Presentation of the results 7.6 RIN and signal-to-noise ratio 7.6.1 General Figure 6 \u2013 Measurement of signal level and signal-to-noise ratio <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 7.6.2 Measuring points and measurement setup 7.6.3 Measurement conditions Figure 7 \u2013 Measuring points in a typical FTTH system Figure 8 \u2013 RIN measurement setup <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 7.6.4 System RIN measurement method <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 7.6.5 S\/N calculation based on RIN value <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 7.6.6 Calculation of component RIN Table 4 \u2013 Parameters used to calculate S\/N when signals of multiple wavelengths are received by a single V-ONU <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 7.7 Optical modulation index 7.8 Signal-to-crosstalk ratio (SCR) 8 Specification of optical system for broadcast signal transmission 8.1 Digital broadcast system over optical network 8.2 International TV systems Figure 9 \u2013 Performance allocation and measuring points <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 8.3 Relationship between RIN and S\/N Table 5 \u2013 Minimum RF signal-to-noise ratio requirements in operation <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Table 6 \u2013 Types of broadcast services <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 8.4 Optical wavelength Table 7 \u2013 Type of service and minimum operational RIN values for satellite services <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 8.5 Frequency of source signal 8.6 Optical system specification for satellite signal transmission Table 8 \u2013 performance of optical wavelength and power Table 9 \u2013 Optical system specification <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 8.7 S\/N ratio specification for in-house and in-building wirings Figure 10 \u2013 Section of S\/N ratio specification (38 dB) for in-house wiring Table 10 \u2013 Section of S\/N ratio specification for in-house\/in-building wiring <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 8.8 Crosstalk due to optical fibre non-linearity 8.9 Single frequency interference level due to fibre non-linearity 8.10 Environment condition Figure 11 \u2013 Section of S\/N ratio specification (24 dB) for in-building wiring(in case of coaxial cable distribution after V-ONU) Table 11 \u2013 Interference level due to fibre non-linearity(single frequency interference) <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex A (informative)Actual service systems and design considerations A.1 General A.2 Metropolitan type CATV <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | A.3 Municipal type CATV Figure A.1 \u2013 Example of a multi-channel service systemof one million terminals Figure A.2 \u2013 Example of a multi-channel service systemwith 2 000 terminals Figure A.3 \u2013 Example of a multi-channel with CS supplementaryservice system for 2 000 terminals <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | A.4 Poor signal reception type CATV A.5 System reference model A.5.1 System parameters Figure A.4 \u2013 Example of a re-transmission servicesystem with 72 terminals Figure A.5 \u2013 Example of a re-transmission servicesystem with 144 terminals <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | A.5.2 Operating environment Table A.1 \u2013 Basic system parameters (Japan) <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure A.6 \u2013 System performance calculation for model A <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Figure A.7 \u2013 System performance calculation for model B <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Figure A.8 \u2013 System performance calculation for model C <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Figure A.9 \u2013 System performance calculation for model D <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Figure A.10 \u2013 System performance calculation for model E <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure A.11 \u2013 System performance calculation for model F <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | A.6 Guidelines for actual operation A.6.1 Optical transmitter A.6.2 Optical amplifier <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Annex B (informative)Wavelength division multiplexing B.1 Optical wavelength grid (optical frequency grid) B.2 Nominal central frequencies and wavelengths <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | Table B.1 \u2013 Example nominal central frequencies of the DWDM grid <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | B.3 Notes regarding wavelength division multiplexing B.3.1 Crosstalk between two wavelengths Table B.2 \u2013 Nominal central wavelength for spacing of 20 nm(ITU-T G.694.2) <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Figure B.1 \u2013 Linear crosstalk between two wavelengths Figure B.2 \u2013 Wavelength dependency of Raman crosstalk <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | B.3.2 Receiving two wavelengths by single V-ONU Figure B.3 \u2013 Nonlinear crosstalk between two wavelengths Figure B.4 \u2013 Frequency dependency of cross-phase modulation <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Figure B.5 \u2013 S\/N degradation (two wavelengthsinto one V-ONU case) <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Annex C (informative)Minimum wavelength separation C.1 Optical beat interference <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | C.2 Range of wavelength variation Figure C.1 \u2013 Experimental results of RIN degradationdue to optical beat <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | C.3 WDM system using optical filters and couplers Figure C.2 \u2013 Wavelength variation of a DWDM transmitteragainst ambient temperature Figure C.3 \u2013 Wavelength variation of a CWDM transmitteragainst ambient temperature <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | Figure C.4 \u2013 Example of wavelength division multiplexingusing WDM filter Figure C.5 \u2013 Example of CWDM filter design <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | Figure C.6 \u2013 Example of wavelength division multiplexing using optical coupler <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | Annex D (informative)Relation between S\/N degradation and rain attenuation <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Cable networks for television signals, sound signals and interactive services – Bandwidth expansion for broadcast signal over FTTH system<\/b><\/p>\n |