BS-EN-61300-3-9-1997 IEC-61300-3-9-1997.pdf
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1、BRITISH STANDARD BS EN 61300-3-9:1997 IEC 61300-3-9: 1997 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3: Examinations and measurements Section 9: Far-end crosstalk The European Standard EN 61300-3-9:1997 has the status of a British Standard I
2、CS 33.180.20 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:51:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-3-9:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board
3、and comes into effect on 15 July 1997 BSI 09-1999 ISBN 0 580 27701 1 National foreword This British Standard is the English language version of EN 61300-3-9:1997. It is identical with IEC 61300-3-9:1997. The UK participation in its preparation was entrusted by Technical Committee EPL/86, Fibre optic
4、s, to Subcommittee EPL/86/2, Interconnecting devices and passive components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests info
5、rmed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to
6、 in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract.
7、Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6 and a
8、 back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:51:56
9、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-3-9:1997 BSI 09-1999i Contents Page National forewordInside front cover Foreword2 Text of EN 61300-3-93 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:51:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffield
10、un sheffieldun, na, Sat Nov 11 09:51:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61300-3-9 April 1997 ICS 33.180.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-9: Examin
11、ations and measurements Far-end crosstalk (IEC 61300-3-9:1997) Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 3-9: Examens et mesures Tldiaphonie (CEI 61300-3-9:1997) Lichtwellenleiter Verbindungselemente und passive Bauteile Grun
12、dlegende Prf- und Meverfahren Teil 3-9: Untersuchungen und Messungen Fernnebensprechen (IEC 61300-3-9:1997) This European Standard was approved by CENELEC on 1997-03-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europ
13、ean 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 (Engl
14、ish, 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,
15、Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee f
16、r Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-3-9:1997 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:51:56 GMT+00:00 200
17、6, Uncontrolled Copy, (c) BSI EN 61300-3-9:1997 BSI 09-1999 2 Foreword The text of document 86B/845/FDIS, future edition 1 of IEC 61300-3-9, 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
18、was approved by CENELEC as EN 61300-3-9 on 1997-03-11. The following dates were fixed: Endorsement notice The text of the International Standard IEC 61300-3-9:1997 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword2 1General3 2Apparatus3 3Procedure4 4Deta
19、ils to be specified4 Figure 1 Measurement of P05 Figure 2 Measurement of P16 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1997-12-01 latest date by which the national standards conflicting with the EN have
20、 to be withdrawn(dow) 1997-12-01 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:51:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61300-3-9:1997 BSI 09-19993 1 General 1.1 Scope and object This part of IEC 1300 describes the procedure to measure the far-end crosstalk of light between ch
21、annels of a multiport M N or 1 N fibre optic passive components (switch, WDM or, in particular cases, fan-out). The far-end crosstalk is defined as the ratio of the optical power that goes out from a given output port to an optical power that goes out from another output port, nominally isolated fro
22、m the previous one. For WDMs the signal travelling in the two output paths have different wavelengths and the far-end crosstalk corresponds to the ratio of the optical power, at a given wavelength, that goes out from the corresponding output port to an optical power, at the same wavelength, that goe
23、s out from another output port, nominally isolated from the previous one at that wavelength. For WDM components the term isolation is more commonly used than far-end crosstalk. 1.2 General description The measurement procedure of the far-end crosstalk entails a comparison between two optical power l
24、evel measurements. The reference power level is the output optical power measured from the fibre which is connected to the optical source and optimized at the same wavelength as emitted by the source in the case of WDM devices. The far-end crosstalk power level is the measured optical power at an ou
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