1、BRITISH STANDARD BS EN 181103:1998 Harmonized system of quality assessment for electronic components Blank detail specification: Fibre optic branching devices Type: Non wavelength selective transmissive star for telecommunication application The European Standard EN 181103:1997 has the status of a B
2、ritish Standard ICS 33.180.20BSEN181103:1998 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comesintoeffect on 15 April 1998 BSI 04-1999 ISBN 0 580 29390 4 National foreword This British
3、 Standard is the English language version of EN 181103:1997 published by the European Electronic Components Committee (CECC) of the European Committee for Electrotechnical Standardization (CENELEC). The UK participation in its preparation was entrusted by Technical Committee EPL/86, Fibre optics, to
4、 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 informed;
5、 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 in t
6、his document 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 Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Us
7、ers 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, pagesi andii, theEN title page, pages2 to29 and a back
8、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. Date CommentsBSEN181103:1998 BSI 04-1999 i Contents Page National foreword Inside
9、 front cover Foreword 2 Text of EN 181103 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN181103 December1997 ICS33.180.20 English version Blank Detail Specification: Fibre optic branching devices Type: Non wavelength selective transmissive star for telecommunication application Spcific
10、ation particulire cadre: Dispositifs de couplage fibres optiques Type; Non slectif en longueur donde, transmission en toile Vordruck fr Bauartspezifikation: Lichtwellenleiter-Verzweiger Bauart: Nicht-wellenlngenselektiver Sternbertrager fr Anwendungen bei Nachrichtenbertragung This European Standard
11、 was approved by CENELEC on 1997-10-01. 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
12、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 ow
13、n 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Port
14、ugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of ex
15、ploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 181103:1997 EEN181103:1997 BSI 04-1999 2 Foreword This European Standard was prepared by the Technical Committee CENELEC/TC CECCSC86BXB, Fibre optic passive components. The text of the draft was submitted to
16、the Unique Acceptance Procedure and was approved by CENELEC as EN 181103 on 1997-10-01. The following dates were fixed: Contents Page Foreword 2 1 Introduction 3 2 Qualification approval 3 3 Quality conformance inspection 3 4 Preparation of detail specifications (DS) 3 latest date by which the EN ha
17、s to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1998-09-01EN181103:1997 BSI 04-1999 3 1 Introduction This specification is a BDS fo
18、r Fibre Optic Branching Devices of the “Non wavelength selective transmissive star” type. This includes instructions for preparing a DS. 2 Qualification approval 2.1 Procedure The DS shall state the qualification approval procedure to be used in accordance with clause3.3 of EN181000. 2.2 Test schedu
19、le and performance requirements The test schedule for qualification by the fixed sample procedure shall be given in Table1 of the DS (seeclauses2.2, 4.5 and4.6 of EN181000). 3 Quality conformance inspection 3.1 Lot-by-lot inspection The test schedule for lot-by-lot inspection (groups A and B) shall
20、be given in Table2 of the DS (seeclauses2.2, 4.5 and4.6 of EN181000). 3.2 Periodic inspection The test schedule for periodic inspection (groups C and D) shall be given in Table3 of the DS (seeclauses2.2, 4.5 and4.6 of EN181000) 4 Preparation of detail specifications (DS) Each BDS is published separa
21、tely as a pro format document, with numbered spaces provided for entering the information necessary to create a DS. If the spaces provided are too small, then the information shall be provided on additional sheets forming part of the completed DS. Instructions for filling in the numbered spaces in a
22、 BDS are given below: 1) The name of the ONH under whose authority the DS is published and, if applicable, the organization from whom the DS is available. 2) The CECC symbol and the number allotted to the DS by the CECC General Secretariat. 3) The number and issue number of the CECC GS; also the nat
23、ional reference(s), if different. 4) If different from the CECC number, the national number of the DS, date of issue and any further information required by the national system, together with any amendment numbers. 5) A brief description of the component or range of components. 6) The level of quali
24、ty assessment (A, B, C or X), sampling procedure (fixed quantity or lot-by-lot) and the climatic category. For 5) and 6) the text to be given in the DS shall be suitable for an entry in CECC00200 (Register of Approvals) and CECC00300 (Register of National Documents). 7) An outline drawing with main
25、dimensions which are of importance for interchangeability, and/or reference to the appropriate national or international documents for outlines. Alternatively, this drawing may be given in an annex to the DS, but 7) shall always contain an illustration of the general outer appearance of the componen
26、t. If an existing drawing from an IEC publication, or similar source, is used in a CECC specification, then it can be either first or third angle projection, but the appropriate symbol shall be shown on the drawing: The symbol in the BDS may be converted to indicate either 1st or 3rd angle, by delet
27、ing the inappropriate part of the drawing. Alternative outline dimensions or tolerance limits of any variants shall be shown, and may be listed in the form of a table alongside the drawing. 8) A list of variants and their identifying features covered by the DS. Enter the identification number. “AYY”
28、 for each variant of each component (seeclause2.7.1 of EN181000). Assign a column in the table for each variant feature. For example, cable type, housing, orientation of ports, means of mounting etc. Instruction: max. values in dB for insertion losses between conduction ports; min. values in dB for
29、return losses; min. values in dB for insertion losses between isolated ports. 9) Supplementary information Enter the supplementary information with respect to marking of the component, marking and contents of package, ordering information, related documents, certified test records and structural sim
30、ilarity. 1st angle projection 3rd angle projectionEN181103:1997 4 BSI 04-1999 10) Fixed sample qualification approval test schedule Table 1 shall give the required measurements and tests for qualification by fixed-sample procedure. If qualification by lot-by-lot and periodic procedure is specified,
31、insert “NOT APPLICABLE” in Table1. If measurements or tests are specified for which no basic procedure is available, or which do not appear in the GSEN181000, each procedure shall be clearly diecribed in an individual annex to the DS. The format and the minimum mandatory test sequence shall be the s
32、ame as specified in the GS. 11) Lot-by-lot inspection test schedule When completed, Table 2 shall give the required measurements and tests for qualification by lot-by-lot procedure. One or more assessment level(s) shall be given in Table2. When differing from the preferred levels of the GS (seeclaus
33、e2.1.5 of EN181000) the IL and AQL shall be entered and the assessment level(s) titled (X, Y.). If measurements or tests are specified for which no basic procedure is available, or which do not appear in the GS, EN181000, each procedure shall be clearly described in an individual annex to the DS. Th
34、e format and the minimum mandatory test sequence shall be the same as specified in the GS. 12) Periodic C and D testing procedure Table 3 shall give the required measurements and tests for groups C and D periodic tests. One or more assessment level(s) shall be given in Table3. When differing from th
35、e preferred levels of the GS (seeclause2.1.5 of EN181000) the IL, AQL, p, n, c and t shall be entered and the assessment level(s) titled (X,Y.). 13) Details, measurements, and performance requirements Table 4 shall list the details of each tests requirements. It shall be noted that the mandatory tes
36、ts have been given as a minimum. Others tests shall be given in the same manner. To fill in the detail of the test the values shall be taken out from the relevant I ETS documentEN181103:1997 BSI 04-1999 5EN181103:1997 6 BSI 04-1999 NOTEValues in dBEN181103:1997 BSI 04-1999 7 (9) SUPPLEMENTARY INFORM
37、ATION Marking of the component (add component marking requirements in accordance with2.7.2 ofEN181000, as applicable): Marking and contents of package (add component package marking requirements in accordance with2.7.3 ofEN181000, as applicable): Ordering information (add ordering information, as ap
38、plicable): Related documents (add additional related documents if not included inEN181000): Certified records of released lots (indicate whether a certificate is required): Structural similarity (add the boundary limits in accordance with3.2 ofEN181000):EN181103:1997 8 BSI 04-1999 (10) Table 1 FIXED
39、 SAMPLE QUALIFICATION APPROVAL TEST SCHEDULE Test sequence (Note) EN181000 Clause Sample size Group0 Group1 Group2 Group3 Further groups if applicable NOTEFor details, measurements and performance requirements seeTable4EN181103:1997 BSI 04-1999 9 (11) Table 2 LOT-BY-LOT INSPECTION TEST SCHEDULE (GRO
40、UPS A AND B) Test Sequence (Note 1) EN181000 Clause Assessment Level (Note 2) Group A Group B NOTE 1For details, measurements and performance requirements seeTable4 NOTE 2See clause2.1.5 ofEN181000.EN181103:1997 10 BSI 04-1999 (12) Table 3 PERIODIC INSPECTION TEST SCHEDULE (GROUPS C AND D) Test Sequ
41、ence (Note 1) EN181000 Clause Assessment Level (Note2) Sample size Group C0 Group C1 Group C2 Further groups if applicable Group D0 Group D1 Group D2 Group D3 Further groups if applicable NOTE 1For details, measurements and performance requirements seeTable4 NOTE 2See clause2.1.5 ofEN181000.EN181103
42、:1997 BSI 04-1999 11 (13) Table 4 (continued) DETAILS, MEASUREMENTS AND PERFORMANCE REQUIREMENTS Visual inspection: In accordance withEN181000 clause4.5.1 Details: Configuration Housing and orientation of the ports Marking Preconditioning procedure Recovery procedure Deviations Requirements: The con
43、figuration, the connector type if any, the orientation of the ports shall be specified in (5); workmanship shall be in accordance with clause2.4.2 ofEN181000; marking shall be in accordance with the requirements in (9).EN181103:1997 12 BSI 04-1999 (13) Table 4 (continued) DETAILS, MEASUREMENTS AND P
44、ERFORMANCE REQUIREMENTS Dimensions and mass: In accordance withEN181000 clause 4.5.2 Details: Size dimensions (mm) Mass (g) Size measurement method (if required) Mass measurement method Preconditioning procedure Recovery procedure Deviations Requirements: All size dimensions and mass shall be in acc
45、ordance with (7).EN181103:1997 BSI 04-1999 13 (13) Table 4 (continued) DETAILS, MEASUREMENTS AND PERFORMANCE REQUIREMENTS Attenuation between conducting and isolated ports: seeEN181000 clause 4.5.5 Details: Test method Wavelength (nm) Spectral width of source (nm) Launch mode conditions Lengths (mm)
46、 Maximum mean attenuation of temporary joint (dB) Maximum standard deviation of temporary joint attenuation (dB) Preconditioning procedure Recovery procedure Deviations Requirements: Allowable attenuation values between conducting ports (dB): (transfer coefficients a ij , isj) Allowable attenuation
47、values between isolated ports (dB): (transfer coefficients a ij , isj).EN181103:1997 14 BSI 04-1999 (13) Table 4 (continued) DETAILS, MEASUREMENTS AND PERFORMANCE REQUIREMENTS Return loss: In accordance withEN181000 clause 4.5.6 Details: Source (S) including spectral or coherence length of source La
48、unch fibre length (mm) Peak wavelength (nm) Source stability (dB) Branching device type Branching device directivity (dB) Branching device loss (dB) Detector spectral response Detector linearity (%) Detector area (mm 2 ) Cladding mode stripper requirement Fibre length (m) Temporary joint definition
49、and requirements Techniques required to ensure repeatable measurements Procedures to reduce reflected power from detectors, temporary joints, connectors, etc Allowable added loss due to connector set (dB) Allowable added loss due to temporary joints (dB) Deviations Requirements: Allowable return loss.EN181103:1997 BSI 04-1999 15 (13) Table 4 (continued) DETAILS, MEASUREMENTS AND PERFORMANCE REQUIREMENTS Wavelength dependence of measurem
