1、BRITISH STANDARD BS EN 61754-3:2002 Fibre optic connector interfaces Part 3: Type LSA connector family The European Standard EN 61754-3:2002 has the status of a British Standard ICS 33.180.20 BS EN 61754-3:2002 This British Standard, having been prepared under the direction of the Electrotechnical S
2、ector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 26 September 2002 BSI 26 September 2002 ISBN 0 580 40383 1 National foreword This British Standard is the official English language version of EN 61754-3:2002. It was derived by C
3、ENELEC from IEC 61754-3:1996. The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by tags (e.g. ). The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Interconnecting d
4、evices and passive components, which has the responsibility to: 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 document may be foun
5、d in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users of Britis
6、h Standards are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals f
7、or change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9, the National Annex NA page, an inside back cover and a
8、 back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61754-3 NORME EUROPENNE EUROPISCHE NORM August 2002 CENELEC European Committee for Electrotechnical Standardizati
9、on Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61754-3:2002 E ICS
10、 33.180.20 English version Fibre optic connector interfaces Part 3: Type LSA connector family (IEC 61754-3:1996, modified) Interfaces de connecteurs pour fibres optiques Partie 3: Famille de connecteurs de type LSA (CEI 61754-3:1996, modifie) Steckgesichter von Lichtwellenleiter-Steckverbindern Teil
11、 3: Steckverbinderfamilie der Bauart LSA (IEC 61754-3:1996, modifiziert) This European Standard was approved by CENELEC on 2002-04-01. 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 nation
12、al standard without any alteration. Up-to-date lists and bibliographical references concerning 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
13、any other language made by translation under the responsibility of a CENELEC member into 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, Czech Republic, Denmark, F
14、inland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.EN -45716:32002 - - 2 Foreword The text of the International Standard IEC 61754-3:1996, prepared by SC 86B, Fibre optic interco
15、nnecting devices and passive components, of IEC TC 86, Fibre optics, together with the common modifications prepared by the Technical Committee CENELEC TC 86BXA, Fibre optic interconnect, passive and connectorised components, was submitted to the formal vote and was approved by CENELEC as EN 61754-3
16、 on 2002-04-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2003-04-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2
17、005-04-01 _ Endorsement notice The text of the International Standard IEC 61754-3:1996 was approved by CENELEC as a European Standard with agreed common modifications. COMMOM NOIDFIACTIONS In Tabl,a1 e erpleca teh ctnotnes of the 5 htcolumn of eRfercneC e yb “2 & ”3. In Tabl,b1 e dad 3 a drtone: 3 T
18、he miniumm value of 118, erefsr ot hte copmerssed state and hte amxiumv malue of 12,4 erefsr ot hte ocnumrpeessts dtae. _ Page2 EN617543:2002-4571( 6991:CEI 3E) 3 CONTENTS Page Clause 1 Scope. 4 2 Description 4 3 Interfaces 4 Page3 EN617543:2002 4 -4571( 6991:CEI 3E) FIBRE OPTIC CONNECTOR INTERFACES
19、 Part 3: Type LSA connector family 1 Scope This part of IEC 1754 defines the standard interface dimensions for type LSA family of connectors. 2 Description The parent connector for type LSA connector family is a single position plug connector which is characterized by a 2,5 mm nominal ferrule diamet
20、er. It includes a screw coupling nut and a ferrule spring load in the direction of the optical axis. The plug has a single male key which may be used to orient and limit the relative rotation between the connector and the component to which it is mated. 3 Interfaces This standard contains the follow
21、ing standard interfaces: Interface 3-1: Plug connector interface Screw coupling Interface 3-2: Adaptor connector interface Screw coupling Interface 3-1 mates with interface 3-2. Page4 EN617543:2002-4571( 6991:CEI 3E) 5 Figure 1 Dimensions of the plug connector interface Page5 EN617543:2002 6 -4571(
22、6991:CEI 3E) Table 1a Dimensions of the plug connector interface Reference Dimensions mm Notes Minimum Maximum Basic A See tolerance grade table B2 , 5 C 11,8 12,4 2 and 3 D 2,4850 2,4995 G45 , 8 H2 , 42 , 5 K 0,80 0,88 L 2,4850 3,6 M0 , 5 N M5,5 x 0,5-6H Metric thread, freely rotating R 4,2 4,7 S 7
23、,3 T 5 Length of A U 2,3 2,45 Table 1b Tolerance grades Grade Reference Dimensions mm Notes Minimum Maximum 0 A 2,4990 2,4995 1 1 A 2,4985 2,4995 1 2 A 2,4980 2,4995 1 3 A 2,4970 2,4995 1 NOTES 1 Envelope condition in accordance with ISO 8015. 2 Ferrule force must be less than 20 N when the ferrule
24、is compressed. 3 The minimum value of 11,8 refers to the compressed state and the maximum value of 12,4 refers to the uncompressed state Page6 EN617543:2002-4571( 6991:CEI 3E) 7 Figure 2 Adaptor connector interface Table 2 Dimensions of the adaptor connector interface Reference Dimensions mm Notes M
25、inimum Maximum Basic A 1 B2 , 6 C 12,15 12,20 D 2,55 G6 2 H2 , 6 K 0,90 0,95 One slot on circumference L 3,7 3,8 M3 , 53 , 6 N M5,5 x 0,5-6G Metric thread R 4,9 NOTES 1 The feature must accept a gauge pin as shown in figure 3 to a depth of 12,2 mm with a withdrawal force of 3 N and 10 N maximum. 2 T
26、hread may be continuous. Page7 EN617543:2002 8 -4571( 6991:CEI 3E) Figure 3 Ferrule endface geometry after termination Table 3 Dimensions of the ferrule endface Reference Dimensions mm Notes Minimum Maximum BF 5 30 See note BA 0,4 1 NOTE Eccentricity of a spherical polished ferrule endface is less t
27、han 50 m. Page8 EN617543:2002-4571( 6991:CEI 3E) 9 Figure 4 Gauge pin for resilient alignment sleeve Table 4 Dimensions of the pin gauge for resilient alignment sleeve Dimensions Reference Minimum Maximum Notes A 2,4993 mm 2,4995 mm 1, 2B 12,5 mm 13,5 mmC 1,0 mm 1,5 mmD 28 32 NOTES 1 Envelope condit
28、ion in accordance with ISO 8015. 2 Surface roughness R Z = 0,2 m. Page9 EN617543:20026 NE571-42:3200 - - 2 National Annex NA (informative) Original IEC text amended by CENELEC common modifications The text of the International Standard IEC 61754-3:1996 was approved by CENELEC as a European Standard
29、with agreed common modifications as given below. COMMON MODIFICATIONS In Table 1a, replace the contents of the 5 thcolumn of Reference C by “2 & 3”. In Table 1b, add a 3 rdnote: 3 The minimum value of 11,8 refers to the compressed state and the maximum value of 12,4 refers to the uncompressed state.
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