1、BRITISH STANDARD BS EN 181101:1995 Specification for Harmonized system of quality assessment for electronic components Blankdetail specification Fibreoptic branching devices Type:nonwavelength selective transmissive star The European Standard EN181101:1994 has the status of a BritishStandardBSEN1811
2、01:1995 BSI12-1999 ISBN 0 580 35973 5 Committees responsible for this British Standard The United Kingdom participation in the preparation of this European Standard was entrusted to Technical Committee EPL/86, Fibre Optics, upon which the following bodies were represented: BEAMA Electrical Cable and
3、 Conductor Accessory Manufacturers Association British Approvals Service for Cables British Cable Makers Confederation British Telecommunications plc Department of Trade and Industry (National Physical Laboratory) ERA Technology Ltd Federation of the Electronics Industry Fibre optic Industry Federat
4、ion Ministry of Defence National Supervising Inspectorate (BSI QA) Optical Sensors Collaborative Association Society of Cable Television Engineers Amendments issued since publication Amd. No. Date CommentsBSEN181101:1995 BSI 12-1999 i Contents Page Committees responsible Inside front cover National
5、foreword ii Foreword 2 Text of EN181101 3BSEN181101:1995 ii BSI 12-1999 National foreword This BritishStandard has been prepared under the direction of the Electrotechnical Sector Board, and is the English language version of EN181101:1994 Blank detail specification: Fibre optic branching devices Ty
6、pe:non wavelength selective transmissive star, published by the European Committee for Electrotechnical Standardization (CENELEC) Electronic Components Committee (CECC). This standard lists details, measurements, performance, test and inspection requirements which shall be included as mandatory requ
7、irements in any detail specification for this type of fibre optic branching device. Detail specifications shall conform to the requirements of this blank detail specification and BS CECC00111 Rule of procedure11. Specifications Part4:1991 Regulations for CECC detail specifications. The BritishStanda
8、rd which implements the CECC Rules of Procedure is BS9000 General requirements for a system for electronic components of assessed quality Part2:1991 Specification for the national implementation of the CECC system. A British Standard does not purport to include all the necessary provisions of a cont
9、ract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference Publication referred to Corresponding BritishStandard EN181000:1994 BS EN181000:1994 Harmonized system of qual
10、ity assessment for electronic components. Generic specification: Fibre optic branching devices Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to12 and a back cover. This standard has been updated (see copyright date) and may have
11、 had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN181101 July 1994 UDC Descriptors: Quality, electronic components, fibre optic branching devices English version Blank Detail Specification: Fibre
12、Optic Branching Devices Type: Non Wavelength Selective Transmissive Star Spification particulire cadre: Coupleurs fibres optiques Type: Non slectif en longueur donde, transmissionen toile Vordruck fr Bauartspezifikation: Faseroptische Verzweiger Bauart:Nicht-wellenlngenselektiver Sternbertrager This
13、 European Standard was approved by the CENELEC Electronic Components Committee (CECC) on17January1993. CENELEC members are bound to comply with CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
14、Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the General Secretariat of the CECC or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made
15、by translation under the responsibility of a CENELEC member into its own language and notified to the CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ic
16、eland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical committees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical St
17、andardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. EN181101:1994 EEN181101:1994 BSI 12-1999 2 Foreword The CENELEC Electronic Compo
18、nents Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The object of the System is to facilitate international trade by the harmo
19、nization of the specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. Thecomponents produced under the System are thereby acceptable in all member countries without further testing. This spec
20、ification was prepared by CECC WG27. The text of the draft based on document CECC (Secretariat)3015 was submitted to the formal vote; together with the voting report, circulated as document CECC(Secretariat)3274, it was approved by CECC as EN181101 on17January1993. The following dates were fixed: Co
21、ntents Page Foreword 2 1 Introduction 3 2 Qualification approval 3 3 Quality conformance inspection 3 4 Preparation of detail specifications (DS) 3 Table 1 Fixed sample qualification approval test schedule 8 Table 2 Lot-by-lot inspection test schedule (Groups A and B) 8 Table 3 Periodic inspection t
22、est schedule (Groups C and D) 9 Table 4 Details, measurements and performance requirements 10 latest date of announcement of the ENatnational level (doa)1993-09-14 latest date of publication ofan identical national standard (dop)1994-03-14 latest date of declaration ofnational standards obsolescence
23、 1994-03-14 latest date of withdrawal ofconflicting national standards (dow) 2003-09-14EN181101:1994 BSI 12-1999 3 Guidance for the preparation of detail specifications 1 Introduction This specification is a BDS for Fibre Optic Branching Devices of the “Non wavelength selective transmissive star” ty
24、pe. 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 The test schedule for qualification by the fixed sampl
25、e procedure shall be given in Table1 of 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 (seeclauses2.2, 4.5 and4.6 of EN181000). 3.2 Periodic inspect
26、ion 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 forma document, with numbered spaces provided for entering the information
27、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 of the ONH under whose authority the DS is published an
28、d, 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 national reference(s), if different. (4) If different from the CECC number, the national n
29、umber 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), sampling procedure (fixed quantity or lot-by-lot) and
30、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 importance for interchangeability, and/or reference to the
31、appropriate national or international document 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 IEC publication, or similar source, is used in a C
32、ECC specification, then it can be either first or third angle projection, but the appropriate symbol shall be shown on the drawing: 1st angle projection 3rd angle projectionEN181101:1994 4 BSI 12-1999 The symbol in the BDS may be converted to indicate either1st or3rd angle, by deleting the inappropr
33、iate 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 each varian
34、t of each component (see clause2.7.1 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 losses;
35、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. (10)
36、Fixed-sample qualification approval test schedule Table 1 shall give the required measurements and tests for qualification by fixed-sample procedure. Ifqualification by lot-by-lot and periodic procedure is specified, insert “NOT APPLICABLE” in Table 1. If measurements or tests are specified for whic
37、h 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. Theformat and the minimum mandatory test sequence shall be the same as specified in the GS. (11) Lot-by-lot inspection test schedule When complet
38、ed, 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 Table 2. When differing from the preferred levels of the GS (see clause2.1.5 of EN181000) the IL and AQL shall be entered and the assessment level(s
39、) titled X, (Y). etc. 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. Theformat and the minimum mandatory test sequence shall be the same as speci
40、fied 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 Table 3. When differing from the preferred levels of the GS (seeclause2.1.5 of EN181000) the IL, AQL, p,
41、 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 tests have been given as a minimum. Other tests shall be given in the same
42、manner.EN181101:1994 BSI 12-1999 5 (1) Specification available from(2) Page1 of . CECC181101 (3) ELECTRONIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH GENERIC SPECIFICATION EN181000 ISSUE1 BLANK DETAIL SPEC. EN181101 (4)Issue. (5) DETAIL SPECIFICATION for FIBRE OPTIC BRANCHING DEVICE OF ASSESS
43、ED QUALITY Style: Configuration: Fibre Type(s): Connector set: Type: Splitter/Combiner Non Wavelength Selective Unior Bidirectional Transmissive Star NxM Transfer matrix and numbering of ports:seepage6 (6) Assessment Level: Qualification Approval Procedure: Climatic Category: (7) Outline dimensions
44、andmass Panel piercing and mounting details: (7) Dimensions (mm) REF. Min. Max. Notes Figure NOTEmass (g): NOTEAdditional drawings (if necessary) see page . (8) Variants: Variant-No. Operating wavelength range Information about manufacturers who have components qualified to this detail specification
45、 is available in the current CECC00200 Register of Approvals.EN181101:1994 6 BSI 12-1999 (8) Transfer matrix and numbering of ports: NOTEValues in dB.EN181101:1994 BSI 12-1999 7 (9) SUPPLEMENTARY INFORMATION Marking of the component (add component marking requirements in accordance with2.7.2 of EN18
46、1000, as applicable): Marking and contents of package (add component package marking requirements in accordance with2.7.3 of EN181000, as applicable): Ordering information (add ordering information, as applicable): Related documents (add additional related documents if not included in EN181000): Cer
47、tified records of released lots (indicate whether a certificate is required): Structural similarity (add the boundary limits in accordance with3.2 of EN181000):EN181101:1994 8 BSI 12-1999 Table 1 Fixed sample qualification approval test schedule (10) Table 2 Lot-by-lot inspection test schedule (Grou
48、ps A and B) (11) Test Sequence (Note) EN181000 Clause Sample size Group0 Group1 Group2 Group3 Further groups ifapplicable NOTEFor details, measurements and performance requirements see Table 4. Test Sequence (Note1) EN181000 Clause Assessment Level (Note2) Group A Group B NOTE 1For details, measurem
49、ents and performance requirements see Table 4. NOTE 2See clause2.1.5 of EN181000.EN181101:1994 BSI 12-1999 9 Table 3 Periodic inspection test schedule (Groups C and D) (12) Test Sequence (Note1) EN181000 Clause Assessment Level (Note2) Sample size Group C0 Group C1 Group C2 Further groups ifapplicable Group D0 Group D1 Group D2 Group D3 Further groups ifapplicable NOTE 1For details, measurements and performance requirements see Table 4. NOTE 2see clause2.1.5 of EN181000EN181101:1994 10 BSI 12-1999 Tabl
