1、BRITISH STANDARD BS EN 181104:1998 Harmonized system of quality assessment for electronic components Blank detail specification: Fibre optic branching devices Type: Wavelength selective transmissive star for telecommunication application The European StandardEN181104:1997 has the status of a British
2、 Standard ICS 33.180.20BSEN181104:1998 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15April1998 BSI 06-1999 ISBN 0 580 29391 2 National foreword This British Sta
3、ndard is the English language version ofEN181104:1997 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 CommitteeEPL/86, Fibre optics, to Subcom
4、mitteeEPL/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; monitor
5、 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 this docu
6、ment may be found in theBSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of theBSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of Bri
7、tish 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, theENtitlepage, pages2 to17 and a back cover. Thi
8、s 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 CommentsBSEN181104:1998 BSI 06-1999 i Contents Page National foreword Inside front cov
9、er Foreword 2 Text of EN 181104 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 181104 December 1997 ICS 33.180.20 English version Blank Detail Specification: Fibre optic branching devices Type: Wavelength selective transmissive star for telecommunication application Spcification parti
10、culire cadre: Dispositifs de couplage fibres optiques Type: Slectif en longueur donde, transmission en toile Vordruck fr Bauartspezifikation: Lichtwellenleiter-Verzweiger Bauart: Wellenlngenselektiver Sternbertrager fr Anwendungen bei Nachrichtenbertragung This European Standard was approved by CENE
11、LEC on1997-10-01. 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 such national standard
12、s 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 notifie
13、d to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Sw
14、itzerland and UnitedKingdom. 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 exploitation in any form a
15、nd by any means reserved worldwide for CENELEC members. Ref. No. EN 181104:1997 EEN181104:1997 BSI 06-1999 2 Foreword This European Standard was prepared by the Technical Committee CENELEC/TC CECC/SC86BXB, Fibre optic passive components. The text of the draft was submitted to the Unique Acceptance P
16、rocedure and was approved by CENELEC asEN181104 on1997-10-01. 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 ENhas to be implemented at nati
17、onal 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) 1998-09-01EN181104:1997 BSI 06-1999 3 1 Introduction This specification is a BDS for Fibre Optic Branching Dev
18、ices of the “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 schedule and performance requirements
19、 The test schedule for qualification by the fixed sample procedure shall be given inTable1 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 be given in Table2 of the DS (se
20、eclauses2.2, 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 separately as a pro format document, w
21、ith 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 BDS are given below: 1) The name
22、 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 CEGC GS; also the national reference(s), if different.
23、 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 quality assessment (A, B, C or X), sam
24、pling 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 dimensions which are of importanc
25、e 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 component. If an existing drawing from an
26、 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:EN181104:1997 4 BSI 06-1999 The symbol in the BDS may be converted to indicate either1st or3rd angle, by deleting the
27、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” for eac
28、h 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 return l
29、osses; 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 similarity.
30、 10) Fixed sample qualification approval test schedule Table1 shall give the required measurements and tests for qualification by fixed-sample procedure. If qualification by lot-by-lot and periodic procedure is specified, insert “NOT APPLICABLE” in Table1. If measurements or tests are specified for
31、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 same as specified in the GS. 11) Lot-by-lot inspection test schedule When compl
32、eted, Table2 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 (seeclause2.1.5 of EN181000) the IL and AQL shall be entered and the assessment level(s)
33、 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. The format and the minimum mandatory test sequence shall be the same as specified
34、 in the GS. 12) Periodic C and D testing procedure Table3 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 the preferred levels of the GS (seeclause2.1.5 of EN181000) the IL, AQL, p, n, c a
35、nd t shall be entered and the assessment level(s) titled (X,Y.). 13) Details, measurements, and performance requirements Table4 shall list the details of each tests requirements. It shall be noted that the mandatory tests have been given as a minimum. Others tests shall be given in the same manner.
36、To fill in the detail of the test the values shall be taken out from the relevant I ETS document (1) Specification available from . (2) Page 1 of.EN 181104- (3) ELECTRONIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH GENERIC SPECIFICATION EN 181000 ISSUE 1 BLANK DETAIL SPECIFICATION EN 181104 (4
37、) IssueEN181104:1997 BSI 06-1999 5 (5) DETAIL SPECIFICATION for FIBRE OPTIC BRANCHING DEVICE OF ASSESSED QUALITY Environmental category “Telecommunications” Style: Configuration Fibre type(s) Connector set :. : : Type: Splitter/combiner Wavelength Selective Uni- or Bidirectional Transmissive star Nx
38、M Transfer matrix and numbering of ports: see page 2 (6) Assessment Level: Qualification Approval Procedure: Climatic Category: (7) Outline dimensions and mass Panel piercing and mounting details: (7) Dimensions (mm) Ref. Min Max Notes Figure Mass (g) NOTEAdditional drawing (if necessary) see page .
39、 (8) Variants: Variant N Operating wavelength range(s) (4m) Information about manufacturers who have components qualified to this detail specification is available isn the current CECC 00 200 Register of Approvals.EN181104:1997 6 BSI 06-1999 (8) Transfer matrix and numbering of ports: NOTE1Values in
40、 db NOTE 2Create an additional transfer matrix for each previously specified operating wavelength range.EN181104:1997 BSI 06-1999 7 (9) Supplementary information Marking of the component (add component marking requirements in accordance with 2.7.2 ofEN181000, as applicable): Marking and contents of
41、package (add component package marking requirements in accordance with 2.7.3 ofEN181000, as applicable): Ordering information (add ordering information, as applicable): Related documents (add additional related documents if not included inEN181000): Certified records of released lots (indicate wheth
42、er a certificate is required): Structural similarity (add the boundary limits in accordance with 3.2 ofEN181000):EN181104:1997 8 BSI 06-1999 (10) Table1 Fixed sample qualification approval test schedule Test sequence (Note) EN181000 Clause Sample size Group0 Group1 Group2 Group3 Further groups if ap
43、plicable NOTEFor details, measurements and performance requirements seeTable4 (11) Table2 Lot-by-lot inspection test schedule (Groups A and B) Test Sequence (Note1) EN181000 Clause Assessment Level (Note 2) Group A Group B NOTE 1For details, measurements and performance requirements seeTable4 NOTE 2
44、See clause2.1.5 ofEN181000 (12) Table 3 Periodic inspection test schedule (Groups C and D) Test Sequence (Note 1) EN181000 Clause Assessment Level (Note 2) 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 d
45、etails, measurements and performance requirements seeTable4 NOTE 2See clause2.1.5 ofEN181000EN181104:1997 BSI 06-1999 9 (13) Table 4 Details, measurements and performance requirements Visual inspection: In accordance withEN181000 clause 4.5.1 Details: Configuration Housing and orientation of the por
46、ts Marking Preconditioning procedure Recovery procedure Deviations Requirements: The configuration, the connector type if any, the orientation of the ports shall be specified in (5); workmanship shall be in accordance with clause 2.4.2 ofEN181000; marking shall be in accordance with the requirements
47、 in (9). (13) Table 4 Details, measurements and performance requirements Dimensions and mass: In accordance withEN181000 clause4.5.2 Details: Size dimensions (mm) Mass (g) Size measurement method (if required) Mass measurement method Preconditioning procedure Recovery procedure Deviations Requiremen
48、ts: All size dimensions and mass shall be in accordance with 7). (13) Table 4 Details, measurements and performance requirements Attenuation between conducting and isolated ports: seeEN181000 clause4.5.5 Details: Test method Wavelength (nm) Spectral width of source (nm) Launch mode conditions Length
49、s (mm) Maximum mean attenuation of temporary joint (dB) Maximum standard deviation of temporary joint insertion loss (dB) Preconditioning procedure Recovery procedure Deviations Requirements: Allowable attenuation values between conducting ports (dB): (transfer coefficients a ij , isj). Allowable attenuation values between isolated ports (dB): (transfer coefficients a ij , isj)EN181104:1997 10 BSI 06-1999 (13) Table 4 Details, measurements and performance requirements Ret
