1、BRITISH STANDARD BS IEC 60874-14-4:1997 Connectors for optical fibres and cables Part 14-4: Detail specification for fibre optic adaptor (simplex) type SC for multimode fibre ICS 33.180.20BSIEC 60874-14-4:1997 This British Standard, having been prepared under the direction of the Electrotechnical Se
2、ctor Committee, was published under the authority of the Standards Committee and comes into effect on 15 December 1998 BSI 05-1999 ISBN 0 580 30915 0 National foreword This British Standard reproduces verbatim IEC 60874-14-4:1997 and implements it as the UK national standard. The UK participation in
3、 its preparation was entrusted to Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/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 th
4、e 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 secretary. From 1 January 1997, all IEC pub
5、lications have the number 60000 added to 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 The British Standards which
6、 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 Catalogue. A British Standard does not
7、 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 comprises a front cover, an inside fr
8、ont cover, pages i and ii, the IEC title page, page ii, pages 1 to 12 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 issued since publication Amd. No.
9、Date CommentsBSIEC60874-14-4:1997 BSI 05-1999 i Contents Page National foreword Inside front cover Figure 1 Adaptor mating face dimensions 2 Figure 2 Adaptor dimensions 4 Figure 3 Panel piercing and mounting detail 5 Figure 4 Dimension of a pin gauge for an adaptor 5 Figure 5 Example of component ma
10、rking 6 Table 1 Fixed sample test schedule for qualification approval 7 Table 2 Lot-by-lot quality conformance inspection schedule 7 Table 3 Periodic quality conformance inspection schedule 8 Table 4 Details, measurements and performance requirements 9ii blankii blankBSIEC60874-14-4:1997 BSI 05-1999
11、 1 CONNECTORS FOR OPTICAL FIBRES AND CABLES Part 14-4: Detail specification for fibre optic adaptor (simplex) type SC for multimode fibre NATIONAL STANDARDS ORGANIZATION: . Date: . DETAIL SPECIFICATION IEC QC 910004XX0004. FIBRE OPTIC COMPONENT OF ASSESSED QUALITY IN ACCORDANCE WITH GENERIC SPECIFIC
12、ATION: QC 910000 (IEC 60874-1) BLANK DETAIL SPECIFICATION: QC 910001 (IEC 60874-1-1) FIBRE OPTIC ADAPTOR CLASSIFICATION: Type: Name: SC For use in datacom applications as specified in ISO/IEC International Standard 11801: “Generic cabling for customer premises” Configuration: plug-adaptor-plug Coupl
13、ing: push-pull Control dimensions: Plug: see Figure 1, Figure 2 and Figure 3 Gauge: see Figure 4 Variants: see page 6 Climatic category: 10/60/4 Environmental category: 4 Assessment level: A QUALIFICATION PROCEDURE: Fixed sample procedure SAFETY WARNING: Take care when handling small diameter optica
14、l fibre to prevent puncturing the skin, especially in the eye area. Direct viewing of the end of an optical fibre when it is propagating energy is not recommended unless prior assurance is obtained as to the safe energy output level.BSIEC 60874-14-4:1997 2 BSI 05-1999 Figure 1 Adaptor mating face di
15、mensionsBSIEC60874-14-4:1997 BSI 05-1999 3 Reference Dimensions Notes Minimum Maximum A B D H I J K L O P R rS T U V AA AB rAC AD AE 4,69 mm 4,9 mm 6,9 mm 0,4 mm 5,51 mm 0,06 mm 1,9 mm 2,0 mm 9,0 mm 7,4 mm 1,0 mm 3,80 mm 5,0 mm 0,6 mm 27 0,9 mm 0,4 mm 0,7 mm 0,4 mm 4,79 mm 5,5 mm 7,1 mm 0,8 mm 5,9 m
16、m 1 mm 2,1 mm 2,2 mm 9,1 mm 7,5 mm 1,1 mm 4,04 mm 5,3 mm 1,6 mm 33 1,0 mm 0,6 mm 0,8 mm 0,6 mm 1 radius radius NOTE 1The connector alignment feature is an alignment sleeve. The gauge retention force shall be measured with two gauge pins, each inserted to the middle of the alignment feature. The gaug
17、e retention force shall be from2,0 N to5,9 N. NOTE 2Where a tolerance of form is not specified, the limits of the dimensions for a feature control the form as well as the size. NOTE 3Where interrelated features of size (features shown with a common axis or centre plane) have no geometric tolerance o
18、f location or run out specified, the limits of the dimensions for a feature control the location tolerance as well as the size. NOTE 4Where perpendicular features (features shown at right angles) have no geometric tolerance of orientation or run out specified, the limits of the dimensions for a feat
19、ure control the orientation tolerance as well as the size. Figure 1 Adaptor mating face dimensions (continued)BSIEC 60874-14-4:1997 4 BSI 05-1999 Reference Dimensions mm Notes Minimum Maximum AF AG AH AI AJ AK AL AM AN AO 21,5 17,5 12,6 9,2 2,2 27 2,8 14,4 7,7 1,7 22,5 18,5 13,0 9,4 2,5 27,8 3,2 16,
20、4 8,0 2,0 1 1 2 NOTE 1The dotted lines indicate an example of the shape of the mounting flange. The largest portion of the mounting flange shall be within these dimensions. NOTE 2If the adaptor is mounted using this hook, the thickness of the panel shall be1,6mm. Figure 2 Adaptor dimensionsBSIEC6087
21、4-14-4:1997 BSI 05-1999 5 Reference Dimensions mm Notes Minimum Maximum W X Y Z 2,4 13,1 17,9 9,5 2,6 13,6 18,1 10,0 Figure 3 Panel piercing and mounting detail Reference Dimensions mm Notes Minimum Maximum CK CL CN 2,4985 2,8 7 2,4995 4,8 15 1 NOTE 1Surface roughness grade N4 (0,24m Ra). Figure 4 D
22、imension of a pin gauge for an adaptorBSIEC 60874-14-4:1997 6 BSI 05-1999 VARIANT IDENTIFICATION NUMBERS Number: QC 910X01/0004-ZZZZ Variant feature ZZZZ Component name Housing part material Sleeve material Preferred housing colour/indicator 1001 Adaptor MMF Plastic Zirconia Beige 1002 Adaptor MMF P
23、lastic Phosphor bronze Beige 1003 Adaptor MMF Metal Zirconia Beige 1004 Adaptor MMF Metal Phosphor bronze Beige SUPPLEMENTARY INFORMATION Colour: 1. For MMF: Beige according to RAL 1013. Component marking: The name and/or manufacturers identification mark may be permanently identified. Figure 5 show
24、s an example of the location of component marking Figure 5 Example of component marking BSIEC60874-14-4:1997 BSI 05-1999 7 Table 1 Fixed sample test schedule for qualification approval Table 2 Lot-by-lot quality conformance inspection schedule Groups A and B Test sequence Reference IEC 60874-1 (IEC6
25、1300) n Group 0 Visual examination Dimensions Gauge retention force 4.4.1 4.4.2 (3-1) (3-1) (3-33) 20 Group 1 Attenuation 4.4.7 (3-4) 20 Group 2 Cold Dry heat Damp heat (steady state) 4.5.17 4.5.18 4.5.19 (2-17) (2-18) (2-19) 6 Group 3 Engagement and separation force Mechanical endurance 4.4.5 4.5.3
26、2 (3-11) (2-2) 6 Group 4 Vibration Change of temperature (test Nb) 4.5.1 4.5.22 (2-1) (2-22) 4 Group 5 Strength of coupling mechanism 4.5.6 (2-6) 4 NOTE 1n = sample size (number of plugs). NOTE 2To satisfy the qualification approval requirements of the detail specification there shall be no failures
27、 of any in the sample groups 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 repo
28、rt and supporting data shall 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 action will have no detrimental effect on the performance in any of the other
29、 tests. Design changes, as opposed to improvements in quality 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 group 1 tests shal
30、l be carried out using a reference connector. All other tests shall be carried out using the samples from the relevant group at random. Test sequence Reference IEC 60874-1 (IEC 61300) Assessment level A IL AQL Group A Visual examination 4.4.1 (3-1) II 4 % Gauge retention force 4.4.2 (3-33) Group B A
31、ttenuation 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 connector. All other tests shall b
32、e carried out using the samples from the relevant group at random.BSIEC 60874-14-4:1997 8 BSI 05-1999 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 Dimensions Gauge retention fo
33、rce 4.4.1 4.4.2 (3-1) (3-1) (3-33) 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 Gauge retention force 4.4.1 4.4.2 (3-1) (3-1) (3-33) 20 48 Group D1 Attenuation 4.4.7
34、(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 Engagement and separation force Mechanical endurance 4.4.5 4.5.2 (3-11) (2-2) 6 48 Group D4 Vibration Change of temperature (test Nb) 4.5.1 4.5.22 (2-1) (2-22) 4 48 Group D5 Strength o
35、f coupling mechanism 4.5.6 (2-6) 4 48 NOTE 1Unless otherwise indicated, the details, measurements and performance requirements are given in Table 4. NOTE 2To satisfy the qualification approval requirements of the detail specification there shall be no failures of any in the sample groups for any tes
36、t 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 shall be prepared
37、 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 action will have no detrimental effect on the performance in any of the other tests. Design changes, as opposed to im
38、provements in quality control, will usually be deemed to necessitate a repeat of the full qualification programme. NOTE 3n = sample size (number of plugs); p = periodicity in months. NOTE 4Only group C1 and D1 tests shall be carried out using a reference connector. All other tests shall be carried o
39、ut using the samples from the relevant group at random.BSIEC60874-14-4:1997 BSI 05-1999 9 Table 4 Details, measurements and performance requirements Visual examination 4.4.1 (61300-3-1) Requirements: Marking shall be clear Dimensions 4.4.2 (61300-3-1) Requirements: All size dimensions shall be in ac
40、cordance with this specification Attenuation 4.4.7 (61300-3-4) Details: Method No. 8 Definitions of reference components are as follows. Reference plug Reference plug shall be in accordance with IEC 60874-14-1 Reference adaptor The reference adaptor is a selected low-loss adaptor. The selection crit
41、erion that must be met is: using two reference plugs and the adaptor, 10 repeated measurements of attenuation with direction insertion of the plugs alternated between measurements will give a maximum attenuation lessthan0,1 dB Number of measurements to be averaged: 5 Source: LED Peak wavelength: 1,3
42、4m Preconditioning procedure: clean ferrule endface and inside of alignment sleeve using lint free material Recovery procedure: none Length L1: 2 m Length L2: 2 m Requirements: Allowable attenuation: less than 0,2 dB against two reference plugs Cold 4.5.17 (61300-2-17) Details: Temperature: 10C Dura
43、tion: 96 h Specimen optically functioning Conditioning procedure: specimen lowered to test temperature and returned to room temperature at a rate not to exceed 1/min Deviations: none Plug shall be in accordance with IEC 60874-14-1 Monitoring method of attenuation and return loss shall be in accordan
44、ce with IEC 61300-3-20 Preconditioning procedure: clean ferrule endface and inside of alignment sleeve using lint free material Recovery procedure: after tests, specimens shall be maintained at room temperature condition for 2 h. Clean ferrule endface and inside of alignment sleeve using lint free m
45、aterial before final measurement Initial measurements and performance requirements: Attenuation: less than 0,75 dB Measurements and performance requirements during test: Attenuation: less than 0,75 dB Change in attenuation: less than 0,2 dB Final measurements and performance requirements: Attenuatio
46、n: less than 0,75 dB Change in attenuation: less than 0,2 dBBSIEC 60874-14-4:1997 10 BSI 05-1999 Table 4 Details, measurements and performance requirements Dry heat 4.5.18 (61300-2-18) Details: Temperature: 60C Duration: 96 h Specimen optically functioning. Conditioning procedure: specimen raised to
47、 test temperature and returned to room temperature at a rate not to exceed 1/min. Deviations: none Plug shall be in accordance with IEC 60874-14-1 Monitoring method of attenuation and return loss shall be in accordance with IEC 61300-3-20 Preconditioning procedure: clean ferrule endface and inside o
48、f alignment sleeve using lint free material Recovery procedure: after tests, specimens shall be maintained at room temperature condition for2 h. Clean ferrule endface and inside of alignment sleeve using lint free material before final measurement Initial measurements and performance requirements: A
49、ttenuation: less than 0,75 dB Measurements and performance requirements during test: Attenuation: less than 0,75 dB Change in attenuation: less than 0,2 dB Final measurements and performance requirements: Attenuation: less than 0,75 dB Change in attenuation: less than 0,2 dB Damp heat (steady state) 4.5.19 (61300-2-19) Details: Temp
