BS EN 50378-3-2-2007 Passive components to be used in optical fibre communication systems - Product specifications - Type 4 8 channel CWDM module terminated on IEC 60793-2-50 categ.pdf
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1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58systems Product specifications Part 3-2: Type 4 / 8 channel CWDM module terminated on IEC 60793-2-5
2、0 category B1.1 and B1.3 single mode fibreThe European Standard EN 50378-3-2:2007 has the status of a British StandardICS 33.180.20Passive components to be used in optical fibre communication BRITISH STANDARDBS EN 50378-3-2:2007BS EN 50378-3-2:2007This British Standard was published under the author
3、ity of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007ISBN 978 0 580 57545 7Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.
4、National forewordThis British Standard is the UK implementation of EN 50378-3-2:2007.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 represe
5、nted on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARD EN 50378-3-2 NORME EUROPENNE EUROPISCHE NORM August 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen d
6、e Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50378-3-2:2007 E ICS 33.180.20 Engli
7、sh version Passive components to be used in optical fibre communication systems - Product specifications - Part 3-2: Type 4 / 8 channel CWDM module terminated on IEC 60793-2-50 category B1.1 and B1.3 single mode fibre Composants passifs destins tre utiliss dans des systmes de communication fibres op
8、tiques - Spcifications de produit - Partie 3-2: Modules CWDM type 4 / 8 canaux cbls sur fibres unimodales de catgories B1.1 et B1.3 de la CEI 60793-2-50 Passive Bauteile zur Verwendung in Lichtwellenleiter-Kommunikationssystemen - Produktnormen - Teil 3-2: Bauart 4-/8-Kanal-CWDM-Module zum Anschluss
9、 an Einmodenfasern der Kategorien B1.1 und B1.3 nach IEC 60793-2-50 This European Standard was approved by CENELEC on 2007-06-01. 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 st
10、andard 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 o
11、ther 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 Rep
12、ublic, 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. EN 50378-3-2:2007 - 2 - Foreword This European
13、 Standard was prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic interconnect, passive and connectorised components. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50378-3-2 on 2007-06-01. The following dates were fixed: - late
14、st date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-06-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-06-01 _ - 3 - EN 50378-3-2:2007 Passive components
15、 to be used in optical fibre communication systems - Product specifications Part 3-2: Type 4 / 8 channel CWDM module terminated on IEC 60793-2-50 category B1.1 and B1.3 single mode fibre Description Performance Application: For use in uncontrolled environment EN 61753-1 Category U Attenuation Mux/De
16、mux: 4 channel / 8 channel -35 dBm/nm Source stability: 2 m. Only the fundamental mode shall propagate at the CWDM module to be tested and at the detector. 1 Attenuation Mux/Demux: 4 channel: -35 dBm/nm Source stability: 2 m. Only the fundamental mode shall propagate at the module to be tested and a
17、t the detector. 2 0,5dB-bandwidth Centred at the operating wavelength): 15 nm For the attenuation measurement the worst case insertion loss values are noted for each channel. The peak in the spectral response inside the OWR of the selected channel is determined. Looking up and down from the peak wav
18、elength, the wavelengths + and - are determined, where the filter transfer function drops below 0,5 dB for the first time. Pre-conditioning procedure: EN 50378-3-2:2007 - 12 - Table 2 - Optical performance requirements (continued) No. Test Requirement Details Method: EN 61300-3-7 Peak wavelength: Th
19、e operating wavelength band. Source stability: -35 dBm/nm Detector linearity: Within 0,05 dB over the dynamic range to be measured. Launch fibre length: 2 m. Only the fundamental mode shall propagate at the CWDM module to be tested and at the detector. Directional coupler: 50/50 Type: Fused. Directi
20、vity: 60 dB 3 Return Loss 45 dB Spectral width during the measurement is 10 nm. Every CWDM port is tested at the OWR of all channnels over a wavelength of: (1 260 1 625) nm for the universal grade or (1 460 1 625) nm for the SCL band grade Pre-conditioning procedure: Terminate non reflective all fib
21、res which are not measured Method: EN 61300-3-5 Source type: Unpolarised light, spectral density -35 dBm/nm wavelength: The operating wavelength band Launch fibre length 2 m. 4 Adjacent and non-Adjacent channel Isolation : 4 + 8 Channel Mux / Demux: Every CWDM port is tested at the OWR of all channe
22、ls over a wavelength of: (1 260 1 625) nm for the universal grade or (1 460 1 625) nm for the SCL band grade Adjacent 30 dB Non Adjacent 50 dB Pre-conditioning procedure: Terminate non reflective all fibres which are not measured Method: EN 61300-3-12; Peak wavelength: The operating wavelength band.
23、 Source stability: -35 dBm/nm - 13 - EN 50378-3-2:2007 Table 2 - Optical performance requirements (continued) No. Test Requirement Details Method: IEC 61300-3-5 Source type: Unpolarised light, spectral density -35 dBm/nm Wavelength: The operating wavelength band Launch fibre length 2 m. 6 Directivit
24、y (Bi directional Near end cross talk) Minimum directivity 50 dB Only applicable to bi-directional CWDMs. The wavelengths used for the transmit direction are all different from the receive wavelengths. The directivity shall be determined as the worst case over all states of polarization. The measure
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