Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2: 2009 BSI Standards Publication Fibre optic interconnecting devices and passive components performance standard — Part 086-2: Non-connectorised single-mode bidirectional 1490 / 1550 nm downstream 1310 nm upstream WWDM devices for category C — Controlled environment NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BRITISH STANDARD Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 National foreword This British Standard is the UK implementation of EN 61753-086-2:2009 It is identical to IEC 61753-086-2:2009 The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive components 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 2010 ISBN 978 580 59256 ICS 33.180.10 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 issued since publication Amd No Date Text affected Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 EUROPEAN STANDARD EN 61753-086-2 NORME EUROPÉENNE November 2009 EUROPÄISCHE NORM ICS 33.180.10 English version Fibre optic interconnecting devices and passive components performance standard Part 086-2: Non-connectorised single-mode bidirectional 1490 / 1550 nm downstream 1310 nm upstream WWDM devices for category C Controlled environment (IEC 61753-086-2:2009) Norme de qualité de fonctionnement des dispositifs d'interconnexion et composants passifs fibres optiques Partie 086-2: Dispositifs WWDM unimodaux non connectorisés bidirectionnels 1490 / 1550 nm en voie descendante et 1310 nm en voie montante fonctionnant en catégorie C Environnement contrôlé (CEI 61753-086-2:2009) Lichtwellenleiter - Verbindungselemente und passive Bauteile Betriebsverhalten Teil 086-2: Nicht mit Steckverbindern versehene bidirektionale 490/1 550-nm-downstream1 310-nm-upstream-Einmoden-WWDMBauteile für die Kategorie C Kontrollierte Umgebung (IEC 61753-086-2:2009) This European Standard was approved by CENELEC on 2009-11-01 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 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 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 Austria, 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 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels © 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 61753-086-2:2009 E Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 EN 61753-086-02:2009 -2- Foreword The text of document 86B/2892/FDIS, future edition of IEC 61753-086-2, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61753-086-2 on 2009-11-01 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) 2010-08-01 – latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-11-01 Annex ZA has been added by CENELEC Endorsement notice The text of the International Standard IEC 61753-086-2:2009 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 62074-1 NOTE Harmonized as EN 62074-1:2009 (not modified) Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 -3- EN 61753-086-2:2009 Annex ZA (normative) 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 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 Publication Year 1) Title EN/HD Year Optical fibres Part 2-50: Product specifications - Sectional specification for class B single-mode fibres EN 60793-2-50 2008 EN 61300 Series 2) IEC 60793-2-50 - IEC 61300 Series Fibre optic interconnecting devices and passive components - Basic test and measurement procedures IEC 61300-2-1 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-1: Tests - Vibration (sinusoidal) EN 61300-2-1 2009 2) IEC 61300-2-4 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-4: Tests - Fibre/cable retention EN 61300-2-4 1997 2) IEC 61300-2-9 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-9: Tests - Shock EN 61300-2-9 1997 2) IEC 61300-2-14 - 1) EN 61300-2-14 Fibre optic interconnecting devices and + corr November passive components - Basic test and measurement procedures Part 2-14: Tests - Optical power handling and damage threshold characterization 2006 2006 2) IEC 61300-2-17 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-17: Tests - Cold EN 61300-2-17 2003 2) IEC 61300-2-18 - 1) EN 61300-2-18 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-18: Tests - Dry heat - High temperature endurance 2005 2) IEC 61300-2-19 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-19: Tests - Damp heat (steady state) EN 61300-2-19 2005 2) 1) 2) Undated reference Valid edition at date of issue Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 EN 61753-086-02:2009 Publication Year -4Title EN/HD Year 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-22: Tests - Change of temperature EN 61300-2-22 2007 2) IEC 61300-2-22 - IEC 61300-2-42 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-42: Tests - Static side load for connectors EN 61300-2-42 2005 2) IEC 61300-2-44 - 1) EN 61300-2-44 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-44: Tests - Flexing of the strain relief of fibre optic devices 2008 2) IEC 61300-3-2 - 1) EN 61300-3-2 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 3-2: Examinations and measurements Polarization dependent loss in a single-mode fibre optic device 2009 2) IEC 61300-3-6 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 3-6: Examinations and measurements Return loss EN 61300-3-6 2009 2) IEC 61300-3-7 - 1) Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 3-7: Examinations and measurements Wavelength dependence of attenuation and return loss of single mode components EN 61300-3-7 2001 2) IEC 61300-3-20 - 1) EN 61300-3-20 Fibre optic interconnecting devices and + corr March passive components - Basic test and measurement procedures Part 3-20: Examinations and measurements Directivity of fibre optic branching devices 2001 2002 2) IEC 61300-3-29 - 1) EN 61300-3-29 Fibre optic interconnecting devices and + corr November passive components - Basic test and measurement procedures Part 3-29: Examinations and measurements Measurement techniques for characterising the amplitude of the spectral transfer function of DWDM components 2006 2006 2) IEC 61753-1 - 1) Fibre optic interconnecting devices and EN 61753-1 passive components performance standard Part 1: General and guidance for performance standards 2007 2) Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 –2– 61753-086-2 © IEC:2009(E) CONTENTS Scope .5 Normative references .5 Test Test report Performance requirements .7 5.1 5.2 5.3 5.4 Annex A Reference components Dimensions .7 Sample size Test details and requirements (normative) Sample size 12 Annex B (informative) General information for 1490 / 1550 nm downstream and 1310 nm upstream PON WWDM devices 13 Bibliography 14 Figure B.1 – Example of 1490 / 1550 nm downstream and 1310 nm upstream WWDM at central office and customer side – Separate video detection inside the ONU 13 Figure B.2 – Example of 1490 / 1550 nm downstream and 1310 nm upstream WWDM at central office side – Integrated video detection inside the ONU 13 Table – Test details and requirements Table A.1 – Sample size 12 Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) –5– FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS PERFORMANCE STANDARD – Part 086-2: Non-connectorized single-mode bidirectional 490 / 550 nm downstream and 310 nm upstream WWDM devices for category C – Controlled environment Scope This part of IEC 61753 contains the minimum initial performance, test and measurement requirements and severities which a fibre optic pigtailed 490 / 550 nm downstream and 310 nm upstream wide wavelength division multiplexing (WWDM) passive optical network (PON) device must satisfy in order to be categorized as meeting the requirements of category C (controlled environments), as defined in Annex A of IEC 61753-1 Annex B of this standard provides information concerning the function of the 490 / 550 nm downstream and 310 nm upstream WWDM Normative references 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 referenced document (including any amendments) applies IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for class B single-mode fibres IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic test and measurement procedures IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-1: Tests – Vibration (sinusoidal) IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-4: Tests – Fibre/cable retention IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-9: Tests – Shock IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-14: Tests – Optical power handling and damage threshold characterization IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-17: Tests – Cold IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-19: Tests – Damp heat (steady state) Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 –6– 61753-086-2 © IEC:2009(E) IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-22: Tests – Change of temperature IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-42: Tests – Static side load for connectors IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic devices IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-2: Examinations and measurements – Polarization dependence of attenuation in a single-mode fibre optic device IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-6: Examinations and measurements – Return loss IEC 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-7: Wavelength dependence of attenuation and return loss IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-20: Examinations and measurements – Directivity of fibre optic branching devices IEC 61300-3-29, Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-29: Examinations and measurements – Measurement techniques for characterizing the amplitude of the spectral transfer function of DWDM components IEC 61753-1, Fibre optic interconnecting devices and passive components performance standard – Part 1: General and guidance for performance standard Test Unless otherwise specified, all test methods are in accordance with the relevant part of IEC 61300 series Each test defines the number of samples to be evaluated The samples used for each test are intended to be previously unstressed new samples but may also be selected from previously used samples if desired The samples shall be terminated onto single-mode fibres as per IEC 60793-2-50, Type B 1.1, in either coated fibres (primary and secondary) or reinforced cable format All measurements shall be carried out at normal room conditions, unless otherwise stated All tests shall be carried out over the optical wavelength bands of 260 nm to 360 nm, 480 nm to 500 nm, and 550 nm to 560 nm, unless otherwise specified NOTE 310 nm, 490 nm and 550 nm are the peak or centre wavelengths, stated for the bands 260 nm to 360 nm, 480 nm to 500 nm and 550 nm to 560 nm Test report Fully documented test reports and supporting evidence shall be prepared and be available for inspection as evidence that the tests have been carried out and complied with Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) 5.1 –7– Performance requirements Reference components The testing for these components does not require the use of reference components 5.2 Dimensions Dimensions shall comply with either an appropriate IEC interface standard or with those given in appropriate manufacturers drawings, where the IEC interface standard does not exist or cannot be used 5.3 Sample size Sample sizes for the tests are defined in Annex A of this standard 5.4 Test details and requirements Table – Test details and requirements No Test Attenuation ≤ 0,8 dB IEC 61300-3-7 Attenuation shall be met over the operating wavelength ranges Total channel isolation IEC 61300-3-7; IEC 61300-3-29 Requirement ≥ 18 dB between wavelength ranges 480 nm to 500 nm and 550 nm to 560 nm; ≥ 30 dB between wavelength ranges 260 nm to 360 nm and 550 nm to 560 nm Details Launch patchcord length: ≥2m Source type: Unpolarised Launch conditions: The wavelength of the source shall be longer than cut-off wavelength of the fibre Other requirements: Test results shall be obtained under measurement uncertainty of ± 0,1 dB Launch patchcord length: ≥2m Source type: Unpolarised Launch conditions: The wavelength of the source shall be longer than cut-off wavelength of the fibre Other requirements: Test results shall be obtained under measurement uncertainty of ± dB Directivity ≥ 50 dB Grade U Source: Laser diode (LD) IEC 61300-3-20 Directivity shall be met over the specified wavelength ranges Other requirements: Test results shall be obtained under measurement uncertainty of ± dB All ports not under test shall be terminated to avoid unwanted reflections contributing to the measurement The directivity shall be measured between any pair of input or output ports Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) –8– Table (continued) No Test Requirement Details Return loss ≥ 50 dB Grade U Source: LD IEC 61300-3-6 Return loss shall be met over the specified wavelength ranges Other requirements: Test results shall be obtained under measurement uncertainty of ± dB All ports not under test shall be terminated to avoid unwanted reflections contributing to the measurement Polarisation dependent loss (PDL) ≤ 0,2 dB IEC 61300-3-2 Polarisation dependent loss shall be met over the specified wavelength ranges Optical power handling and damage threshold characterization ≥ 300 mW (sum of power at the three wavelength ranges at the same time) IEC 61300-2-14 During and on completion of the test the attenuation limits of test No shall be met After the test the isolation limits of test No shall be met During and on completion of the test the return loss limits of test No shall be met Launch patchcord length: ≥2m Source type: LD Other requirements: Test results shall be obtained under measurement uncertainty of ± 0,05 dB Source type LD Max power to be applied at wavelength range 550 nm to 560 nm: 300 mW (+ ~25 dBm) Max power to be applied at wavelength ranges 480 nm to 500 nm and 260 nm to 360 nm: 10 mW (+ 10 dBm) Power increments: dB Test duration: 0,5 h at each power level Other requirements: Test results shall be obtained under attenuation measurement uncertainty of ± 0,1 dB Test results shall be obtained under return loss measurement uncertainty of ± dB Cold IEC 61300-2-17 During and on completion of the test the attenuation limits of test No shall be met After the test the isolation limits of test No shall be met During and on completion of the test the return loss limits of test No shall be met Temperature: - 10 °C ± °C Duration of the exposure: 96 h Maximum sampling interval during the test: 1h Measurements required: Attenuation shall be measured before, during and after the test Return loss shall be measured before, during and after the test Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) –9– Table (continued) No Test Requirement Dry heat – High temperature endurance During and on completion of the test the attenuation limits of test No shall be met IEC 61300-2-18 After the test the isolation limits of test No shall be met During and on completion of the test the return loss limits of test No shall be met Details Temperature: + 60 °C ± °C Duration of the exposure: 96 h Maximum sampling interval during the test: 1h Measurements required: Attenuation shall be measured before, during and after the test Return loss shall be measured before, during and after the test Change of temperature IEC 61300-2-22 During and on completion of the test the attenuation limits of test No shall be met After the test the isolation limits of test No shall be met During and on completion of the test the return loss limits of test No shall be met High temperature: + 60 °C ± °C Low temperature: - 10 °C ± °C Number of cycles: Rate of temperature change: °C/min Duration at extreme temperatures: 1h Maximum sampling interval during the test: 0,5 h Measurements required: Attenuation shall be measured before, during and after the test Return loss shall be measured before, during and after the test 10 Damp heat (steady state) During and on completion of the test the attenuation limits of test No shall be met Temperature: + 40 °C ± °C Humidity: 93 % RH ± % RH IEC 61300-2-19 After the test the isolation limits of test No shall be met Duration of the exposure: 96 h During and on completion of the test the return loss limits of test No shall be met Maximum sampling interval during the test: 1h Measurements required: Attenuation shall be measured before, during and after the test Return loss shall be measured before, during and after the test Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) – 10 – Table (continued) No 11 Test Vibration Requirement Details After the test the attenuation limits of test No shall be met Frequency range: 10 Hz – 55 Hz After the test the isolation limits of test No shall be met Constant vibration amplitude: 0,75 mm Number of cycles: 15 IEC 61300-2-1 After the test the return loss limits of test No shall be met (10 Hz - 55 Hz -10 Hz): Frequency change: octave/min Number of axes: orthogonal Duration per axis: 0,5 h Measurements required: Attenuation shall be measured before and after the test Return loss shall be measured before and after the test 12 Shock After the test the attenuation limits of test No shall be met Acceleration force: 500 G After the test the isolation limits of test No shall be met Number of axes: main axes, perpendicular on each other Duration shock: ms Pulse: Half sine Number of shocks: per axis (one in each direction) Measurements required: Attenuation shall be measured before, after each axis and after the test IEC 61300-2-9 After the test the return loss limits of test No shall be met Return loss shall be measured before and after the test Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) – 11 – Table (continued) No 13 Test Fibre/Cable retention Requirement After the test the attenuation limits of test No shall be met Details Magnitude of the load: IEC 61300-2-4 10 N ± N for reinforced cable After the test the isolation limits of test No shall be met 5,0 N ± 0,5 N for secondary coated fibre After the test the return loss limits of test No shall be met 2,0 N ± 0,2 N at 0,5 N/s for primary coated fibre Load application point: 0,3 m from the end of device Load rate: N/s for reinforced cable 0,5 N/s for coated fibre Duration of the load: 120 s at 10 N Measurements required: Attenuation shall be measured before and after the test 60 s at N and N Return loss shall be measured before and after the test 14 Flexing of the strain Relief of fibre optic devices IEC 61300-2-44 After the test the attenuation limits of test No shall be met Magnitude of the load: 2,0 N ± 0,2 N for reinforced cable After the test the isolation limits of test No shall be met Rate of load application: 0,5 N/s for reinforced cable After the test the return loss limits of test No shall be met Load application point: 0,2 m from end of device Number of cycles: 30 cycles Measurements required: Attenuation shall be measured before and after the test Return loss shall be measured before and after the test 15 Static side load After the test the attenuation limits of test No shall be met Magnitude of the load: IEC 61300-2-42 0,2 N ± 0,1 N for secondary coated fibres After the test the isolation limits of test No shall be met After the test the return loss limits of test No shall be met 1,0 N ± 0,1 N for reinforced cable Load application point: 0,3 m from the end of device Load rate: 0,5 N/s Duration of the load: h at 1N Measurements required: Attenuation shall be measured before and after the test at 0,2 N Return loss shall be measured before and after the test Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 – 12 – 61753-086-2 © IEC:2009(E) Annex A (normative) Sample size Table A.1 indicates sample sizes for the tests Table A.1 – Sample size Sequence number Test Sample size Attenuation 12 Total channel isolation 12 Directivity 12 Return loss 12 Polarization dependent loss 12 Optical power handling and damage threshold characterization 12 Cold Dry Heat - High temperature endurance Damp heat (steady state) 10 Change of temperature 11 Vibration 12 Shock 13 Fibre / Cable retention 14 Flexing of the strain relief of fibre optic devices 15 Static side load Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 61753-086-2 © IEC:2009(E) – 13 – Annex B (informative) General information for 490 / 550 nm downstream and 310 nm upstream PON WWDM devices The 490 / 550 nm downstream and 310 nm upstream PON WWDM devices are used inside the PON for facilitating the transport of downstream traffic and the separate analogue radio frequency (RF) overlaid video (CATV) signal from the central office (CO) optical line terminal (OLT) with the upstream one from the optical network unit (ONU) installed at the premises They also can be used to combine and separate the downstream and upstream traffic at the customer ONU They multiplex and demultiplex the voice, data and CATV: – 310nm channel for Data/Voice upstream; – 490nm channel for Data/Voice downstream; – 550nm channel for CATV Bidirectional transceiver (co) Bidirectional transceiver (ont) 490 490 and 550 310 PON splitter 310 550 490 490 and 550 310 310 Tripleplaywdm (co) 550 Tripleplaywdm (ont) Transmitter analogue catv (co) Analogue receiver (ont) OLT ONU IEC 1855/09 Figure B.1 – Example of 490 / 550 nm downstream and 310 nm upstream WWDM at central office and customer side – Separate video detection inside the ONU Bidirectional transceiver (co) 490 PON splitter 310 490 and 550 310 550 Tripleplaywdm (co) 490 and 550 310 Tripleplay transceiver (ont) Transmitter analogue catv (co) OLT ONU IEC 1856/09 Figure B.2 – Example of 490 / 550 nm downstream and 310 nm upstream WWDM at central office side – Integrated video detection inside the ONU Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI BS EN 61753-086-2:2009 – 14 – 61753-086-2 © IEC:2009(E) Bibliography IEC 62074-1, Fibre optic WDM devices – Part 1: Generic specification ITU-T Recommendation G.983.3 – Broadband optical system with increased service capability by wavelength allocation ITU-T Recommendation G.984.2 – Gigabit-capable Passive Optical Networks (GPON): Physical Media Dependent (PMD) layer specification ITU-T Recommendation G.671 – Transmission characteristics of optical components and subsystems IEEE Std 802.3ah.-2004 – IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications Amendment: Media Access Control Parameters, Physical Layers, and Management Parameters for Subscriber Access Networks _ This page deliberately left blank Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI This page deliberately left blank Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI Licensed Copy: athen reading, Reading University Library, 23/01/2010 05:08, Uncontrolled Copy, (c) BSI British Standards Institution (BSI) BSI is the independent 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