1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationCable networks for television signals, sound signals and interactive servicesPart 6: Optical equipmentBS EN 60728-6:2011National forewordThis British Standard is the UK implement
2、ation of EN 60728-6:2011. It is identical to IEC 60728-6:2011. It supersedes BS EN 60728-6:2003 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/4, Cable distribution eq
3、uipment and systems.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 correct application. BSI 2011ISBN 978 0 580 75467 8 ICS 33.060.
4、40; 33.160.99Compliance 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 July 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 607
5、28-6:2011EUROPEAN STANDARD EN 60728-6 NORME EUROPENNE EUROPISCHE NORM June 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011
6、 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60728-6:2011 E ICS 33.060.40; 33.160.99 Supersedes EN 60728-6:2003English version Cable networks for television signals, sound signals and interactive services - Part 6: Optical equ
7、ipment (IEC 60728-6:2011) Rseaux de distribution par cbles pour signaux de tlvision, signaux de radiodiffusion sonore et services interactifs - Partie 6: Matriels optiques (CEI 60728-6:2011) Kabelnetze fr Fernsehsignale, Tonsignale und interaktive Dienste - Teil 6: Optische Gerte (IEC 60728-6:2011)
8、This European Standard was approved by CENELEC on 2011-05-16. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
9、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 (English, French, German). A version in any other language made by translation under the responsibility of a CENE
10、LEC 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 Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,
11、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60728-6:2011EN 60728-6:2011 - 2 - Foreword The text of document 100/1654/CDV, future edition 3 of I
12、EC 60728-6, prepared by technical area 5, Cable networks for 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 60728-6 on 2011-05-16. This Euro
13、pean Standard supersedes EN 60728-6:2003. EN 60728-6:2011 includes the following significant technical changes with respect to EN 60728-6:2003. The normative references were updated. The methods of measurement for optical power and return loss were substituted by references to other standards. The m
14、ethod of measurement for polarization dependent loss was deleted. A method of measurement for carrier-to-crosstalk ratio (CCR) was added. The methods of measurement for CSO and CTB of optical amplifiers were substituted by a method of measurement for microscopic gain tilt of optical amplifiers. This
15、 parameter can be used for calculating the second order distortion of optical amplifiers according to the method described in the new Annex B. New classes for optical transmitters and receivers have been defined. Attention is drawn to the possibility that some of the elements of this document may be
16、 the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 201
17、2-02-16 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-05-16 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60728-6:2011 was approved by CENELEC as a European Standard without any modification.
18、In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60068 series NOTE Harmonized in EN 60068 series (not modified). IEC 60068-2-48 IEC 60169-2 IEC 60728-5 NOTE Harmonized as EN 60068-2-48. NOTE Harmonized as EN 60169-2. NOTE Harmonized as
19、EN 60728-5. BS EN 60728-6:2011- 3 - EN 60728-6:2011 IEC 60793-2-50 IEC 60825-2 IEC 61280-2-2 IEC 61280-4-2 IEC 61281-1:1999 IEC 61290-1-1 IEC 61290-1-2 IEC 61290-3-1 IEC 61290-6-1 IEC 61291-4 NOTE Harmonized as EN 60793-2-50. NOTE Harmonized as EN 60825-2. NOTE Harmonized as EN 61280-2-2. NOTE Harmo
20、nized as EN 61280-4-2. NOTE Harmonized as EN 61281-1:1999 (not modified). NOTE Harmonized as EN 61290-1-1. NOTE Harmonized as EN 61290-1-2. NOTE Harmonized as EN 61290-3-1. NOTE Harmonized as EN 61290-6-1. NOTE Harmonized as EN 61291-4. _ BS EN 60728-6:2011EN 60728-6:2011 - 4 - Annex ZA (normative)
21、Normative references to international publications with their corresponding European publications The following referenced 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 referen
22、ced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-1 + corr. October 1988 1988 Environmental testing - Part 1: General and guida
23、nce EN 60068-11)1994 IEC 60068-2-1 - Environmental testing - Part 2-1: Tests - Test A: Cold EN 60068-2-1 - IEC 60068-2-2 - Environmental testing - Part 2-2: Tests - Test B: Dry heat EN 60068-2-2 - IEC 60068-2-6 2007 Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal) EN 60068-2
24、-6 2008 IEC 60068-2-14 - Environmental testing - Part 2-14: Tests - Test N: Change of temperature EN 60068-2-14 - IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock EN 60068-2-27 - IEC 60068-2-30 - Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cy
25、clic (12 h + 12 h cycle) EN 60068-2-30 - IEC 60068-2-31 - Environmental testing - Part 2-31: Tests - Test Ec: Rough handling shocks, primarily for equipment-type specimens EN 60068-2-31 - IEC 60068-2-40 - Environmental testing - Part 2-40: Tests. Test Z/AM: Combined cold/low air pressure tests EN 60
26、068-2-40- IEC 60169-24 - Radio-frequency connectors - Part 24: Radio-frequency coaxial connectors with screw coupling, typically for use in 75 ohm cable distribution systems (Type F) EN 60169-24 - IEC 60529 - Degrees of protection provided by enclosures (IP Code) - - IEC 60728-1 - Cable networks for
27、 television signals, sound signals and interactive services - Part 1: System performance of forward paths EN 60728-1 - 1) EN 60068-1 includes A1 to IEC 60068-1 + corr. October. BS EN 60728-6:2011- 5 - EN 60728-6:2011 Publication Year Title EN/HD Year IEC 60728-2 - Cabled distribution systems for tel
28、evision and sound signals - Part 2: Electromagnetic compatibility for equipment - - IEC 60728-3 2010 Cable networks for television signals, sound signals and interactive services - Part 3: Active wideband equipment for cable networks EN 60728-3 2011 IEC 60728-11 - Cable networks for television signa
29、ls, sound signals and interactive services - Part 11: Safety EN 60728-11 - IEC 60728-13 + corr. August 2010 2010 Cable networks for television signals, sound signals and interactive services - Part 13: Optical systems for broadcast signal transmissions EN 60728-13 2010 IEC 60793-2-50 2008 Optical fi
30、bres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres EN 60793-2-50 2008 IEC 60825-1 - Safety of laser products - Part 1: Equipment classification and requirements EN 60825-1 - IEC 61280-1-1 - Fibre optic communication subsystem basic test procedures - Par
31、t 1-1: Test procedures for general communication subsystems - Transmitter output optical power measurement for single-mode optical fibre cable EN 61280-1-1 - IEC 61280-1-3 - Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Central wavelength and spec
32、tral width measurement EN 61280-1-3 - IEC/TR 61282-4 - Fibre optic communication system design guides - Part 4: Accomodation and utilization of non-linear effects - - IEC 61290-1 Series Optical amplifiers - Test methods - Part 1: Optical power and gain parameters EN 61290-1 Series IEC 61290-1-3 - Op
33、tical amplifiers - Test methods - Part 1-3: Power and gain parameters - Optical power meter method EN 61290-1-3 - IEC 61290-3-2 2003 Optical amplifiers - Part 3-2: Test methods for noise figure parameters - Electrical spectrum analyzer method EN 61290-3-22)2003 IEC 61290-5 Series Optical amplifiers
34、- Test methods - Part 5: Reflectance EN 61290-5 Series IEC 61290-6 Series Optical fibre amplifiers - Basic specification - Part 6: Test methods for pump leakage parameters EN 61290-6 Series 2) EN 61290-3-2 is superseded by EN 61290-3-2:2008, which is based on IEC 61290-3-2:2008. BS EN 60728-6:2011EN
35、 60728-6:2011 - 6 - Publication Year Title EN/HD Year IEC 61290-11 Series Optical amplifier - Test methods - Part 11: Polarization mode dispersion parameter EN 61290-11 Series IEC 61291-1 - Optical amplifiers - Part 1: Generic specification EN 61291-1 - IEC 61291-5-2 - Optical amplifiers - Part 5-2:
36、 Qualification specifications - Reliability qualification for optical fibre amplifiers EN 61291-5-2 - IEC 61300-3-6 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-6: Examinations and measurements - Return loss EN 61300-3-6 - IEC 61754-4
37、- Fibre optic connector interfaces - Part 4: Type SC connector family EN 61754-4 - IEC/TR 61931 1998 Fibre optic - Terminology - - IEC 80416 Series Basic principles for graphical symbols for use on equipment EN 80416 Series IEC 60417 database Graphical symbols for use on equipment - - IEC 60617 data
38、base Graphical symbols for diagrams - - BS EN 60728-6:2011 7 60728-6 IEC:2011(E) CONTENTS INTRODUCTION . 8 1 Scope . 9 2 Normative references 9 3 Terms, definitions, symbols and abbreviations 11 3.1 Terms and definitions 11 3.2 Symbols 18 3.3 Abbreviations . 19 4 Methods of measurement 20 4.1 Measur
39、ement requirements . 20 4.1.1 General . 20 4.1.2 Input specification 20 4.1.3 Measurement conditions 20 4.2 Optical power 21 4.3 Loss, isolation, directivity and coupling ratio . 21 4.3.1 General . 21 4.3.2 Measurement requirements 21 4.3.3 Principle of measurement 21 4.4 Return loss 22 4.5 Saturati
40、on output power of an optical amplifier . 22 4.5.1 Purpose . 22 4.5.2 Procedure 22 4.6 Centroidal wavelength and spectral width under modulation . 22 4.7 Linewidth and chirping of transmitters with single mode lasers . 23 4.7.1 Purpose . 23 4.7.2 Equipment required 23 4.7.3 General measurement requi
41、rements 23 4.7.4 Procedure 23 4.7.5 Potential sources of error . 25 4.8 Optical modulation index 25 4.8.1 Purpose . 25 4.8.2 Equipment required 25 4.8.3 Procedure 25 4.8.4 Potential sources of error . 26 4.9 Reference output level of an optical receiver 26 4.9.1 Purpose . 26 4.9.2 Equipment required
42、 26 4.9.3 General measurement requirements 27 4.9.4 Procedure 27 4.9.5 Potential sources of error . 27 4.10 Slope and flatness . 28 4.10.1 Purpose . 28 4.10.2 Equipment required 28 4.10.3 Procedure 28 4.10.4 Potential sources of error . 29 BS EN 60728-6:201160728-6 IEC:2011(E) 8 4.11 Composite secon
43、d order distortion (CSO) of optical transmitters 29 4.11.1 Purpose . 29 4.11.2 Equipment required 30 4.11.3 Procedure 30 4.11.4 Potential sources of error . 30 4.12 Composite triple beats (CTB) of optical transmitters . 30 4.12.1 Purpose . 30 4.12.2 Equipment required 31 4.12.3 Procedure 31 4.12.4 P
44、otential sources of error . 31 4.13 Composite crossmodulation of optical transmitters . 31 4.13.1 Purpose . 31 4.13.2 Equipment required 32 4.13.3 Procedure 32 4.13.4 Potential sources of error . 34 4.14 Receiver intermodulation . 34 4.14.1 Purpose . 34 4.14.2 Equipment required 34 4.14.3 General me
45、asurement requirements 35 4.14.4 Procedure 35 4.14.5 Potential sources of error . 36 4.15 Microscopic gain tilt of optical amplifiers 36 4.15.1 Purpose . 36 4.15.2 Equipment required 36 4.15.3 Procedure 37 4.15.4 Potential sources of error . 38 4.16 Noise parameters of optical transmitters and optic
46、al receivers . 38 4.16.1 Purpose . 38 4.16.2 Equipment required 38 4.16.3 General measurement requirements 39 4.16.4 Procedure 40 4.16.5 Relative intensity noise 42 4.16.6 Equivalent input noise current density 42 4.16.7 Potential sources of error . 42 4.17 Method for combined measurement of relativ
47、e intensity noise (RIN), optical modulation index and equivalent input noise current . 43 4.17.1 Purpose . 43 4.17.2 Equipment required 43 4.17.3 General measurement conditions . 44 4.17.4 Procedure 44 4.17.5 Potential sources of error . 45 4.18 Noise figure of optical amplifiers 45 4.19 Influence o
48、f fibre 45 4.19.1 Purpose . 45 4.19.2 Equipment required 45 4.19.3 Procedure 45 4.19.4 Potential sources of error . 45 4.20 SBS threshold . 46 BS EN 60728-6:2011 9 60728-6 IEC:2011(E) 4.20.1 Purpose . 46 4.20.2 Equipment required 46 4.20.3 Procedure 46 4.20.4 Potential sources of error . 47 4.21 Car
49、rier-to-crosstalk ratio (CCR) . 47 4.21.1 Purpose . 47 4.21.2 Equipment required 47 4.21.3 Procedure 47 4.21.4 Potential sources of error . 48 5 Universal performance requirements and recommendations 48 5.1 Safety 48 5.2 Electromagnetic compatibility (EMC) 48 5.3 Environmental . 48 5.3.1 Requirements 48 5.3.2 Storage 49 5.3.3 Transportation . 49 5.3.4 Installation or maintenance 49 5.3.5 Operation 49 5.4 Marking . 49 6 Active equipment 49 6.1 Optical forward path transmitters . 49 6.1.1 Classifi
