1、BRITISH STANDARD BS EN 60874-19:1997 IEC 60874-19: 1995 QC 912100: 1996 Connectors for optical fibres and cables Part 19: Sectional specification for fibre optic connector Type SC-D (Duplex) The European Standard EN 60874-19:1997 has the status of a British Standard ICS 33.180.20BSEN60874-19:1997 Th
2、is British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15 August 1997 BSI 09-1999 ISBN 0 580 27785 2 National foreword This British Standard is the English language version of
3、EN 60874-19:1997. Itis identical with IEC 60874-19:1995. This standard is a harmonized specification within the IEC quality assessment system for electronic components (IECQ). In the IECQ system, this specification is numbered QC912100. The UK participation in its preparation was entrusted by Techni
4、cal Committee EPL/86, Fibre optics, 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 chang
5、e, and keep the UK interests informed; 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. From 1 January 1997, all IEC publications have the number 60000 added to
6、 the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time 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 Annex ZA lists normative refere
7、nces to international publications with their corresponding 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 using the “F
8、ind” facility of the BSI Standards Electronic 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 leg
9、al obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in
10、the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN60874-19:1997 BSI 09-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 60874-19 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN60874-19 May1997 ICS
11、33.180.20 Descriptors: Sectional specification for fibre optic connector, type SC-D(uplex) English version Connectors for optical fibres and cables Part 19: Sectional specification for fibre optic connector Type SC-D(uplex) (IEC 874-19:1995 + corrigendum 1996) Connecteurs pour fibres et cbles optiqu
12、es Partie 19: Spcification intermdiaire pour connecteur pour fibres optiques Type SC-D(uplex) (CEI 874-19:1995 + corrigendum 1996) Steckverbinder fr Lichtwellenleiter und LWL-Kabel Teil 19: Rahmenspezifikation fr LWL-Steckverbinder Typ SC-D(uplex) (IEC874-19:1995 + Corrigendum 1996) This European St
13、andard 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 European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references conce
14、rning 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
15、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, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spai
16、n, 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 exploitation
17、 in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60874-19:1997 EEN60874-19:1997 BSI 09-1999 2 Foreword The text of the International Standard IEC 874-19:1995 and its corrigendum May 1996, prepared by SC 86B, Fibre optic interconnecting devices and passive components,
18、 of IEC TC 86, Fibre optics, was submitted to the formal vote and was approved by CENELEC as EN 60874-19 on1997-03-11 without any modification. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has b
19、een added by CENELEC. Endorsement notice The text of the International Standard IEC 874-19:1995 and its corrigendum May 1996 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 General 3 1.1 Scope 3 1.2 Normative references 3 1.3 Definitions 3 2 Requir
20、ements 3 2.1 Classification 3 2.2 Reference components 3 2.3 Gauges 3 2.4 Non-flammable materials 3 3 Quality assessment procedures 7 3.1 Qualification approval 7 3.2 Quality conformance inspection 7 Annex ZA (normative) Normative referencestointernational publicationswiththeircorresponding European
21、publications Inside back cover Figure 1 Plug mating face dimensions 4 Figure 2 Adaptor mating face dimensions 6 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 st
22、andards conflicting with the EN have to be withdrawn (dow) 1997-12-01EN60874-19:1997 BSI 09-1999 3 1 General 1.1 Scope This sectional specification is part of the relevant specification for Type SC-D(uplex) connectors. The specification, along with the appropriate blank detail specification, defines
23、 the requirements and the quality assessment procedures for the subfamily. Type SC-D(uplex) is a subfamily of two-way optical fibre connectors utilizing a push-pull coupling mechanism and cylindrical ferrules of 2,5 mm nominal diameter. 1.2 Normative references The following normative documents cont
24、ain provisions which, through reference in this text, constitute provisions of this part of IEC 874. At the time of publication, the editions indicated were valid. All normative documents are subject to revision and parties to agreements based on this part of IEC 874 are encouraged to investigate th
25、e possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. NOTEReferences to specific clauses or subclauses include all subclauses to the reference unless otherwise specified. IE
26、C 874-1:1993, Connectors for optical fibres and cables Generic specification. IEC 874-14:1993, Connectors for optical fibres and cables Part 14: Sectional specification for fibre optic connectors Type SC. 1.3 Definitions None. 2 Requirements The requirements specified herein and in section 2 of IEC
27、874-1 apply. 2.1 Classification The connectors covered by this specification are classified as: Type: name: SC-D; coupling: push-pull; configurations: plug-adapter-plug; plug-socket. The single limit (maximum or minimum) mating face dimensions for each connector set configuration are given in Figure
28、 1 and Figure 2. The detail specification defines the mating face dimensions, arrangement, style, variants, climatic category, environmental category, and assessment level(s). 2.2 Reference components The detail specification shall define reference components when they are required. 2.3 Gauges The d
29、etail specification shall define gauges when they are required. 2.4 Non-flammable materials The detail specification shall define non-flammable materials when they are required.EN60874-19:1997 4 BSI 09-1999 Figure 1 Plug mating face dimensionsEN60874-19:1997 BSI 09-1999 5 Reference Dimensions Notes
30、Min. Nom. Max. Y 12,25 13,15 3 PC 12,51 Dimensions MMF a SMF a Notes PA 2,7 max. 1,8 max. 4 PB R 1,35 max. R 0,9 max. 4 NOTE 1The projection of drawings is in third angle. NOTE 2Original dimensions are in millimetres. NOTE 3Individual plugs may be aligned in a sleeve or by a clamp that allows for de
31、viations from this dimension. NOTE 4This dimension applies typically to both keys and shall be specified in the relevant detail specification. a MMF: Multimode fibre SMF: Single-mode fibreEN60874-19:1997 6 BSI 09-1999 Figure 2 Adaptor mating face dimensionsEN60874-19:1997 BSI 09-1999 7 3 Quality ass
32、essment procedures The quality assessment procedures specified herein and in section 3 of IEC 874-1 apply. 3.1 Qualification approval 3.1.1 Fixed sample procedure When specified, the fixed sample procedure shall be in accordance with 3.3.1 of IEC 874-1. The relevant blank detail specification contai
33、ns the minimum mandatory test schedules and performance requirements for qualification by the fixed sample procedure. The complete set of mandatory test schedules and performance requirements shall be specified in the detail specification. Upon successful completion of the tests, qualification appro
34、val will be granted for the complete range of variants submitted as structurally similar. 3.1.1.1 Sample size The sample size for qualification by the fixed sample procedure shall be specified in the detail specification. The specimens shall be complete connector sets of a variant for the fibre core
35、 diameter specified in the detail specification. In addition, the following samples shall be provided: one specimen of each plug variant to be qualified by structural similarity to the one used for group “0”; one specimen of each adaptor variant to be qualified by structural similarity to the one us
36、ed for group “0”; one specimen of each socket variant to be qualified by structural similarity to the one used for group “0”. Following completion of the group “0” tests, the specimens for the other groups shall be randomly selected from the group “0” sample. 3.1.1.2 Preparation of specimens Test sp
37、ecimens for kit arrangements shall be terminated using the smallest core diameter specified in the detail specification. The fibre/cable type and lengths to be used for all arrangements shall be as specified in the detail specification. 3.1.1.3 Testing The tests shall be conducted in the order given
38、, in accordance with the method specified and the specimens shall satisfy the performance requirements of the detail specification. The additional variant specimens (see 3.1.1.1) shall be tested to all group “0” tests and shall meet the requirements of the detail specification. 3.1.2 Lot-by-lot and
39、periodic procedure When specified, the lot-by-lot plus periodic qualification procedure shall be in accordance with3.3.1 of IEC 874-1 (see 3.2.1 and 3.2.2 for test schedules). Upon successful completion of the tests, qualification approval will be granted for the complete range of variants submitted
40、 as structurally similar. 3.2 Quality conformance inspection 3.2.1 Lot-by-lot inspection The minimum mandatory inspection schedules for lot-by-lot inspection are specified in the relevant blank detail specification. The complete set of mandatory test schedules and performance requirements shall be s
41、pecified in the detail specification. Reference Dimensions Notes Min. Nom. Max. Y 12,65 12,75 AO 35 AP 30,0 AQ 25,9 AR 2,3 AS 9,4 3 AT 21,7 AU 3,7 AD 7,4 7,5 AE 9,0 9,1 AF 3,725 Basic AG 4,525 Basic Dimensions MMF a SMF a Notes AA 2,9 min. 2,0 min. 4 AB R 1,45 min. R 0,95 min. 4 NOTE 1The projection
42、 of drawings is in third angle. NOTE 2Original dimensions are in millimetres. NOTE 3This dimension is the true position of the centres of the alignment sleeves. NOTE 4This dimension applies typically to both keyways and shall be specified in the relevant detail specification. a MMF: Multimode fibre
43、SMF: Single-mode fibreEN60874-19:1997 8 BSI 09-1999 3.2.2 Periodic inspection The minimum mandatory periodic test schedules are specified in the relevant specification. The complete set of mandatory test schedules and performance requirements shall be specified in the detail specification. Upon succ
44、essful completion of the tests, periodic inspection approval will be granted for the complete range of variants submitted as structurally similar. 3.2.2.1 Sample size The sample size for periodic inspection shall be as specified in the detail specification. The specimens shall be complete connector
45、sets of a variant for the smallest fibre core diameter specified in the detail specification. In addition, the following samples shall be provided: one specimen of each plug variant to be qualified by structural similarity to the one used for group “C0” or D0”; one specimen of each adaptor variant t
46、o be qualified by structural similarity to the one used for group “C0” or “D0”; one specimen of each socket variant to be qualified by structural similarity to the one used for group “C0” or “D0”. Following completion of the group “C0” or “D0” tests, the specimens for the other groups shall be rando
47、mly selected from the group “C0” or “D0” sample. 3.2.2.2 Preparation of specimens Test specimens for kit arrangements shall be terminated using the smallest fibre core diameter specified in the detail specification. The fibre/cable type and lengths to be used for all arrangements shall be as specifi
48、ed in the detail specification. 3.2.2.3 Testing The tests shall be conducted in the order given in accordance with the method specified and the specimens shall satisfy the performance requirements of the detail specification. The additional variant specimens selected (see3.2.2.1) shall be tested to
49、all of the group “C0” or “D0” tests and shall meet the requirements of the detail specification.EN60874-19:1997 BSI 09-1999 9 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For
