1、 IEC 60728-13-1 Edition 1.0 2012-05 INTERNATIONAL STANDARD Cable networks for television signals,sound signals and interactive services Part 13-1:Bandwidth expansion for broadcast signal over FTTH system IEC 60728-13-1:2012(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Sc
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10、lled when printed.IEC 60728-13-1 Edition 1.0 2012-05 INTERNATIONAL STANDARD Cable networks for television signals,sound signals and interactive services Part 13-1:Bandwidth expansion for broadcast signal over FTTH system INTERNATIONAL ELECTROTECHNICAL COMMISSION XA ICS 33.160.01;33.180.01 PRICE CODE
11、 ISBN 978-2-88912-044-4 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by Jame
12、s Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.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 3.1 Terms and definitions.8 3.2 Symbols.16 3.3 Abbreviations.17 4 Opt
13、ical 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 equipment.19 5.2 Accuracy of measuring equipment.20 5.3 Source power.20 6 Methods of measu
14、rement.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 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 M
15、easurement 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 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 RI
16、N 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 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 C/N.29 7.4 Optical wavelength.31 7.5 Frequency of source signal.32 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by J
