1、BRITISH STANDARD BS IEC 60874-14-1: 1997 QC 910004XX0001: 1997 Connectors for optical fibres and cables Part 14-1: Detail specification for fibre optic connector type SC-PC standard terminated to multimode fibre type A1a,A1b ICS 33.180.20BS IEC60874-14-1:1997 This British Standard, having been prepa
2、red under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comesintoeffect on 15September1998 BSI 06-1999 ISBN 0 580 30217 2 National foreword This British Standard reproduces verbatim IEC60874-14-1:1997 and implements it as the UK nation
3、al standard. The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subommittee GEL/86/2, Interconnecting devices and passive components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/Eur
4、opean committee any enquiries on the interpretation, or proposals for change, 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 secretar
5、y. From1 January1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-referenc
6、es The British Standards which implement international or European publications referred to in this 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 Catalogu
7、e. 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. Summary of pages This document compris
8、es a front cover, an inside front cover, pages i and ii, theIEC title page, pages ii to iv, pages1 to14 and a back 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
9、issued since publication Amd. No. Date CommentsBS IEC60874-14-1:1997 BSI 06-1999 i Contents Page National foreword Inside front cover Foreword iii Text of IEC 60874-14-1 1ii blankBS IEC60874-14-1:1997 ii BSI 06-1999 Contents Page Foreword iii Figure 1 Plug mating face dimensions 2 Figure 2a Ferrule
10、endface geometry after termination 4 Figure 2b Allowable undercut BK versus radius rBF 5 Figure 3 Plug dimension 5 Figure 4 Example of component marking 6 Table 1 Fixed sample test schedule for qualification approval 7 Table 2 Lot-by-lot quality conformance inspection schedule 7 Table 3 Periodic qua
11、lity conformance inspection schedule 8 Table 4 Details, measurements and performance requirements 9BS IEC60874-14-1:1997 BSI 06-1999 iii Foreword 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees
12、 (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted t
13、o technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the Internati
14、onal Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since
15、each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense
16、. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standar
17、d shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some of the elements of this Intern
18、ational Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC60874-14-1 has been prepared by subcommittee86B: Fibre optic interconnecting devices and passive components, of IEC technical committee
19、86: Fibre optics. The text of this standard is based on the following documents: Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The QC number that appears on the front cover of this publication is the specification
20、number in the IEC Quality Assessment System for Electronic Components (IECQ). The references to clauses or subclauses of IEC60874-1 indicated in this part apply to the third edition of IEC60874-1. FDIS Report on voting 86B/871/FDIS 86B/1000/RVDiv blankBS IEC60874-14-1:1997 BSI 06-1999 1 CONNECTORS F
21、OR OPTICAL FIBRES AND CABLES Part14-1: Detail specification for fibre optic connector type SC-PC standard terminated to multimode fibre type A1a, A1b NATIONAL STANDARDS ORGANIZATION: . Date: DETAIL SPECIFICATION IEC QC910004XX0001. FIBRE OPTIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH GENERIC
22、 SPECIFICATION: QC910000 (IEC60874-1) BLANK DETAIL SPECIFICATION: QC910001 (IEC60874-1-1) CONNECTOR SET FOR OPTICAL FIBRES AND CABLES CLASSIFICATION: Type: Name: SC For use in datacom applications as specified in ISO/IEC International Standard11801: “Generic cabling for customer premises” Configurat
23、ion: plug-adaptor-plug Coupling: push-pull Control dimensions: Plug: see Figure 1, Figure 2 and Figure 3 Adaptor: See IEC60874-14-1 Arrangement: Patchcord arrangement Style: Fibre retention: as required Cable retention: as required Optical coupling: butting Alignment: resilient sleeve alignment Vari
24、ants: see page6 Climatic category:10/60/4 Environmental category:4 Assessment level: A QUALIFICATION PROCEDURE: Fixed sample procedure SAFETY WARNING: Take care when handling small diameter optical fibre to prevent puncturing the skin, especially in the eye area. Direct viewing of the end of an opti
25、cal fibre when it is propagating energy is not recommended unless prior assurance is obtained as to the safe energy output level. Applicable fibre cable information Mode field diameter In accordance with IEC60793-2 Cladding diameter In accordance with IEC60793-2 Core/cladding concentricity error In
26、accordance with IEC60793-2 Buffer diameter 250 15, 500 30,900 504m Jacket outer diameter As required per variant Additional information Attenuation in random connection: less than0,75dB(97% probability) less than0,35dB (average)BS IEC60874-14-1:1997 2 BSI 06-1999 Figure 1 Plug mating face dimensions
27、BS IEC60874-14-1:1997 BSI 06-1999 3 Reference Dimensions Notes Minimum Maximum A B C D E F G H I J K L M N O P Q R rS T U V cBC 2,498mm 4,8mm 6,8mm 4,9mm 6,7mm 19 25 7,15mm 0,8mm 5,3mm 0,1mm 2,11mm 2,0mm 6,6mm 1,6mm 8,89mm 0,8mm 7,29mm 0,8mm 4,05mm 5,4mm 0mm 0mm 2,500mm 4,9mm 7,4mm 5,3mm 6,8mm 23 35
28、 7,50mm 1,2mm 5,5mm 0,05mm 2,5 mm 2,8mm 6,8mm 1,8mm 8,99mm 1,0mm 7,39mm 0,9mm 4,15mm 5,6mm 0,5mm 0,5mm 1, 2 3 radius chamfer NOTE 1Ferrule compression force shall be from7,8N to11,8N, when the ferrule is compressed to a point where H is7 0,1mm. NOTE 2This value shows the dimension after the ferrule
29、is polished and in the unmated condition. NOTE 3The negative dimension refers to the position of the inside bottom plane left-direction relative to the mechanical reference plane. NOTE 4Where a tolerance of form is not specified, the limits of the dimensions for a feature control the form as well as
30、 the size. NOTE 5Where interrelated features of size (features shown with a common axis or centre plane) have no geometric tolerance of location or run out specified, the limits of the dimensions for a feature control the location tolerance as well as the size. NOTE 6Where perpendicular features (fe
31、atures shown at right angles) have no geometric tolerance of orientation or run out specified, the limits of the dimensions for a feature control the orientation tolerance as well as the size. Figure 1 Plug mating face dimensions (continued)BS IEC60874-14-1:1997 4 BSI 06-1999 Reference Dimensions No
32、tes Minimum Maximum rBF BK BG BG BI 10mm 0,0001mm 1,76mm 1,90mm 25 25mm see graph 2,26mm 2,26mm 35 1, radius 2 diameter, 4 diameter, 5 NOTE 1Eccentricity of a spherical polished ferrule endface is less than50 4m. NOTE 2The negative dimension refers to the fibre protrusion. NOTE 3Break edge. NOTE 4Th
33、is value is applicable to the variant numbers1001,1002,1003,1005 and1007. NOTE 5This value is applicable to the variant numbers1002, 1004, 1006 and1008. Figure 2a Ferrule endface geometry after terminationBS IEC60874-14-1:1997 BSI 06-1999 5 Figure 2b Allowable undercut BK versus radius rBF Reference
34、 Dimensions mm Notes Minimum Maximum BD BE BE BE BE 2,2 2,6 2,9 3,2 60 1 2 3 4 NOTE 1This value is applicable to the variant numbers 1001 and1002. NOTE 2This value is applicable to the variant numbers 1003 and1004. NOTE 3This value is applicable to the variant numbers 1005 and1006. NOTE 4This value
35、is applicable to the variant numbers 1007 and1008. Figure 3 PlugdimensionBS IEC60874-14-1:1997 6 BSI 06-1999 VARIANT IDENTIFICATION NUMBERS Number: QC910X01/0002-ZZZZ ZZZZ Variant feature Applicable cable jacket diameter Ferrule material Dimension BG 1001 Plug 2,0mm Zirconia 1,762,26 1002 Plug 2,0mm
36、 Zirconia 1,902,26 1003 Plug 2,4mm Zirconia 1,762,26 1004 Plug 2,4mm Zirconia 1,902,26 1005 Plug 2,7mm Zirconia 1,762,26 1006 Plug 2,7mm Zirconia 1.902,26 1007 Plug 3,0mm Zirconia 1,762,26 1008 Plug 3,0mm Zirconia 1,902,26 SUPPLEMENTARY INFORMATION Preferred colour: Colour of the coupling sleeve and
37、 boot shall be beige. According to RAL1013. Component marking: The name and/or manufacturers identification mark may be permanently identified. Figure 4 shows an example of the location of the component marking. Figure 4 Example of component markingBS IEC60874-14-1:1997 BSI 06-1999 7 Table1 Fixed sa
38、mple test schedule for qualification approval Table 2 Lot-by-lot quality conformance inspection schedule Groups A and B Test sequence Reference IEC60874-1 (IEC61300) n Group0 Visual examination Dimensions Ferrule compression force 4.4.1 4.4.2 (3-1) (3-1) (3-22) 20 Group1 Attenuation 4.4.7 (3-4) 20 G
39、roup2 Cold Dry heat Damp heat, steady state 4.5.17 4.5.18 4.5.19 (2-17) (2-18) (2-19) 6 Group3 Drop Engagement and separation force Mechanical endurance 4.5.14 4.4.5 4.5.32 (2-12) (3-11) (2-2) 6 Group4 Vibration Change of temperature (test Nb) 4.5.1 4.5.22 (2-1) (2-22) 4 Group5 Strength of coupling
40、mechanism Cable pulling Cable torsion 4.5.6 4.5.4 4.5.5 (2-6) (2-4) (2-5) 4 Group6 Fibre or ferrule retention 4.5.2 (2-4) NA NOTE 1n = sample size (number of plugs). NOTE 2To satisfy the qualification approval requirements of the detail specification there shall be no failures of any in the samplegr
41、oups for any test parameter. If a failure does occur this shall be investigated and the cause of failure identified and corrected. The test which is affected shall then be repeated using the minimum sample size stated in this detail specification. A fully documented test report and supporting data s
42、hall be prepared and shall be available for inspection. Failures and the corrective action taken to eliminate failures shall be documented and evidence shall be presented to show that the corrective actionwill have no detrimental effect on the performance in any of the other tests. Design changes, a
43、s opposed to improvements inquality control, will usually be deemed to necessitate a repeat of the full qualification programme. NOTE 3Unless otherwise indicated, the test details, measurements and performance requirements are given in Table 4. NOTE 4Only group1 tests shall be carried out using a re
44、ference connector. All other tests shall be carried out using the samplesfrom the relevant group at random. Test sequence Reference IEC60874-1 (IEC61300) Assessment level A IL AQL Group A Visual examination Radius Undercut/Protrusion Eccentricity of spherical polished endface 4.4.1 4.4.2 (3-1) (3-1)
45、 (3-23) (3-25) II 4% Group B Attenuation 4.4.7 (3-4) II 4% NOTE 1Unless otherwise indicated, the details, measurements and performance requirements are given in Table 4. NOTE 2IL = Inspection level; AQL = Acceptable quality level. NOTE 3Only group B tests shall be carried out using a reference conne
46、ctor. All other tests shall be carried out using the samplesfrom the relevant group at random.BS IEC60874-14-1:1997 8 BSI 06-1999 Table 3 Periodic quality conformance inspection schedule Groups C and D Test sequence Reference IEC60874-1 (IEC61300) Assessment level A n p Group C0 Visual examination D
47、imensions Ferrule compression force 4.4.1 4.4.2 (3-1) (3-1) (3-22) 18 24 Group C1 Attenuation 4.4.7 (3-4) 18 24 Group C2 Cold Dry heat Damp heat (steady state) 4.5.17 4.5.18 4.5.19 (2-17) (2-18) (2-19) 6 24 Group D0 Visual examination Dimensions Ferrule compression force 4.4.1 4.4.2 (3-1) (3-1) (3-2
48、2) 20 48 Group D1 Attenuation 4.4.7 (3-4) 20 48 Group D2 Cold Dry heat Damp heat (steady state) 4.5.17 4.5.18 4.5.19 (2-17) (2-18) (2-19) 6 48 Group D3 Drop Engagement and separation force Mechanical endurance 4.5.14 4.4.5 4.5.2 (2-12) (3-11) (2-2) 6 48 Group D4 Vibration Change of temperature (test
49、 Nb) 4.5.1 4.5.22 (2-1) (2-22) 4 48 Group D5 Strength of coupling mechanism Cable pulling Cable torsion 4.5.6 4.5.4 4.5.5 (2-6) (2-4) (2-5) 4 48 Group D6 Fibre or ferrule retention 4.5.2 (2-4) NA NA NOTE 1n = sample size (number of plugs); p= periodicity in months. NOTE 2To satisfy the conformance inspection requirements of the detail specification there shall be no failures in the sample groups for an
