1、 STD-BSI BS EN b1300-2-g-ENGL 2001 lib24bb7 09111b2 1Tb W BRITISH STANDARD Fibre optic interconnecting 1 e 1 e devices and passive components - Basic test and measurement procedures - Part 2-40: Tests - Screen testing of attenuation of single-mode tuned angled optical connectors The European Standar
2、d EN 61300-2-40:2000 has the status of a British Standard ICs 33.180.20 BS EN IEC 6 1300-2-40 :200 1 61300-2-40:2000 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STD.BS1 BS EN bL300-2-O-ENGL 200L m Lb2qbb9 09LLLb3 032 BS EN 61300-2-40:2001 Amd. No. National foreword Date Co
3、mments This British Standard is the official English language version of EN 61300-2-40:2000. It is identical with IEC 61300-2-40:2000. The UK participation in its preparation was entrusted by Technical Committee GEU86, Fibre optics, to Subcommittee GEL/86/2, Interconnecting devices and passive compo
4、nents, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and
5、promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time
6、during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their co
7、rresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic
8、 Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having
9、 been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside ba
10、ck cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication 8 BSI 06-2001 ISBN O 580 37206 5 STD-BSI BS EN b1300-2-9O-ENGL 2001 lb2Libb9 O91LLbLI T79 H EUROPEAN STANDARD EN 61 300-2-40 NORME EUROPEENNE
11、EUROPISCHE NORM December 2000 ICs 33.180.20 English version Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 240: Tests - Screen testing of attenuation of single-mode tuned angled optical connectors (I EC 6 1 300-2-40:2000) Dispositifs dintercon
12、nexion et composants passifs fibres optiques - Mthodes fondamentales dessais et de mesures Partie 2-40: Essais - Tri par mesure de laffaiblissement des connecteurs pour fibres optiques monomodales angulaires de type accord (CE1 61300-2-40:2000) Lichtwellenleiter - Verbindungselemente und passive Bau
13、teile - Grundlegende Prf- und Messverahren Teil 240: Prfungen - Sortierprfverfahren fr die Dmpfung von abgestimmten schrg angeschliffenen Einmoden-LWL-Steckverbindern (IEC 61 300-2-40:2000) This European Standard was approved by CENELEC on 2000-1 1-01. CENELEC members are bound to comply with the CE
14、NICENELEC 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
15、 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
16、versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Ele
17、ctrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels O 2000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. R
18、ef. No. EN 61300-2-40:2000 E Foreword The text of document 86B/l325/FDIS, future edition 1 of IEC 61300-2-40, 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 6
19、1300-2-40 on 2000-1 1-01. The following dates were fixed: - latest date by which the EN has to be implemented at national levei by publication of an identical national standard or by endorsement - latest date by which the national standards conflicting with the EN have to be withdrawn Annexes design
20、ated “normative“ are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice (dop) 2001-08-01 (dow) 2003-1 1-01 The text of the International Standard IEC 61300-2-40:2000 was approved by CENELEC as a European Standard without
21、any modification. STD-BSI BS EN bL300-2-VO-ENGL 2OOL Lb24bb7 O71LLbb 4L D Page 3 EN 61300-2-40:2000 CONTENTS Page Clause General 4 1.1 1.2 General description . 4 1.3 Normative references 4 Scope and object 4 1.4 Adjusting sector 4 Apparatus 6 Optical source (S) . 6 2.1 2.2 Excitation unit (E) . 6 2
22、.3 Detector (D) 6 2.4 2.5 Screen plug for tuned connector (SP) 6 2.6 Reference adaptor (RA) 6 Procedure 6 Details to be specified 7 Temporary joints (TJ) 6 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 8 Q BSI 06-2001 FIBRE O
23、PTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS - BASIC TEST AND MEASUREMENT PROCEDURES - Part 2-40: Tests - Screen testing of attenuation of single-mode tuned angled optical connectors I General 1.1 Scope and object This part of IEC 61300 describes the test for screening single-mode tuned conne
24、ctors against tuning errors. It is applicable to single-mode angled connectors which are equipped with a tuning mechanism. The tests ensure that the plugs passing this test have attenuations lower than A, when they are randomly mated to other connectors of the same type. 1.2 General description Atte
25、nuation is mainly caused by lateral misalignment of the respective fibre cores. The misalignment is related to the lateral offsets of the fibre core centre to the ferrule axis of each connector plug. In order to tune a connector, the plug shall have a lateral fibre core offset located in a specified
26、 adjusting sector. The screen test method described in the subsequent procedure is able to identify plugs having the desired performance. 1.3 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 613
27、00. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IEC 61300 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. F
28、or undated references, the latest edition of the normative document referred to applies. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 6 1300-3-4, Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-4
29、: Examination and measurements - Attenuation 1.4 Adjusting sector Each connector based on a “plug/adaptor/pIug“ structure defines an (Oy) axis around which the two plugs are in a symmetrical position. 8 BSI 06-2001 STD-BSI BS EN b1300-2-qO-ENGL 2001 m 1b2qbbS 07111b8 b14 m Page 5 EN 61300-2-40:2000
30、True position of the screen plug core IEC 1070/2000 Figure 1 - Adjusting sector and reference plug true position In every angled connector, the polishing angle (a) is included in the plan (xOZ). The adjusting sector is around this (Oy) axis. Only two options are possible. The selected adjusting sect
31、or shall be defined in the relevant connector specification. The preferred orientation of the adjustment sector shall be the direction of the plug key (see figure 2). - IC 1071i2000 Y Figure 2 - Preferred orientation of the adjustment sector for some constructions - Example of angled connector schem
32、e The size of the adjusting sector is Bad, = dNadj, where Nad, (adjusting number) is recom- mended to be 4 or 6. O BSI 06-2001 - STD-BSI BS EN b1300-2-qO-ENGL 21301 W lb24bb7 07LLLb9 550 Page 6 EN 61300-2-40:2000 2 Apparatus 2.1 Optical source (S) Unless stated otherwise in the test procedure, the r
33、ecommended source is a laser diode. 2.2 Excitation unit (E) Unless stated otherwise in the test procedure, the excitation unit is only a single mode fibre length greater than 2 m. 2.3 Detector (D) Unless stated otherwise in the test procedure, the recommended detector is a large sensitive area. 2.4
34、Temporary joints (TJ) 2.5 This is an angled polished plug which has a lateral offset of the fibre core eccentrically positioned at a theoretical true position, with a tolerance from this theoretical true position. This reference plug shall be defined in the relevant connector specification. The pref
35、erred true position is located at 0,75 pm from the ferrule axis, in the direction of the adjusting axis. The fibre core is within 0,3 pm around this true position (see figure 1). Screen plug for tuned connector (SP) In order to reduce dispersion in attenuation due to the mode field diameter differen
36、ce the screen plug should use the same fibre type as the plug to be screened. 2.6 Reference adaptor (RA) The reference adaptor shall be defined in the connector detail or product specification. 3 Procedure Preconditioning procedure: The alignment and end surfaces of the plug ferrules and the adaptor
37、s shall be cleaned before test. The clean conditions shall be maintained during the test. The attenuation measurement methods shall comply with IEC 61 300-3-4, Insertion method B, and shall be conducted at ambient temperature. No recovery procedures are required. The attenuation limit Aref for scree
38、ning the plug under test depends on the connector construction. Measure the attenuation A, of the plug under test with a reference adaptor (RA) and a screen plug (SP). A, has to be smaller than a specific value Aref. The relation between the maximum attenuation in random mating A, that is expected f
39、or screened plugs and Arer shall be defined in the connector detail or product specification. If not, Aref has to be specified in the test procedure. O BSI 06-2001 STD-BSI BS EN b1300-2-4O-ENGL 2001 E lb2Libb9 0911170 272 W Page 7 EN 61300-2-40:2000 SIE D Ao Aref IEC 1072RooO Figure 3 - Test method
40、4 Details to be specified The procedure of this screen test shall specify the following details: - peak wavelength of optical source; - maximum attenuation A, (dB); - Aref (if not specified in the connector detail or product specification); - deviation from test procedure; unless the preferred value
41、s given in this test method are used, the following information shall be given or a reference shall be made to a specification providing the following information: 0 source wavelength; 0 screen plug definition; 0 reference adaptor; 0 pre-conditioning procedure; 0 recovery procedure; 0 additional pas
42、s/fail criteria. O BSI 06-2001 - STD-BSI ES EN bL300-2-40-ENGL 2001 Lb24bb9 09LL17L LO9 m Page 8 EN 61300-2-40:2000 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference
43、, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated
44、in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant ENIHD applies. Publication - Year Title EN/HD -
45、Year IEC 61300-3-4 1998 Fibre optic interconnecting devices and EN 61300-3-4 1998 passive components - Basic test and measurement procedures Part 3-4: Examination and measurements - Attenuation BS EN IEC 61300-2-40:2001 6 1300-2-40: 2000 BSI 389 Chiswick High Road London w4 4AL SI - British Standard
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