1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58plastic optical fibreThe European Standard EN 61754-21:2005 has the status of a British StandardICS
2、 33.180.20Fibre optic connector interfaces Part 21: Type SMI connector family for BRITISH STANDARDBS EN 61754-21:2005BS EN 61754-21:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 August 2005 BSI 19 August 2005ISBN 0 580 46043 6request
3、 to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electr
4、onic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis d
5、ocument comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on th
6、is subcommittee can be obtained on present to the responsible international/European 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.National forewordThis
7、 British Standard is the official English language version of EN 61754-21:2005. It is identical with IEC 61754-21:2005.The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive componen
8、ts, which has the responsibility to: aid enquirers to understand the text;EUROPEAN STANDARD EN 61754-21 NORME EUROPENNE EUROPISCHE NORM April 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische
9、Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels ICS 33.180.20 English version Fibre optic connector interfaces Part 21: Type SMI connector family for plastic optical fibre (IEC 61754-21:2005) Interfaces de connecteurs pour fibres optiques Partie 21: Famille de connecteurs de type
10、SMI pour les fibres optiques plastiques (CEI 61754-21:2005) Steckgesichter von Lichtwellenleiter-Steckverbindern Teil 21: Steckverbinderfamilie der Bauart SMI fr Kunststofffasern (IEC 61754-21:2005) This European Standard was approved by CENELEC on 2005-04-01. CENELEC members are bound to comply wit
11、h 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 concerning such national standards may be obtained on application to the Central Secretari
12、at 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 its own language and notified to the Central Secretariat has the same status as the o
13、fficial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slo
14、venia, Spain, Sweden, Switzerland and United Kingdom. 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61754-21:2005 E EN 61754-21:2005 2 Foreword The text of document 86B/2073/FDIS, future edition 1 of IEC 61754-21, prepared
15、by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61754-21 on 2005-04-01. The following dates were fixed: latest date by which the EN has to be implemented at national le
16、vel by publication of an identical national standard or by endorsement (dop) 2006-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-04-01 _ Endorsement notice The text of the International Standard IEC 61754-21:2005 was approved by CENELEC as a
17、 European Standard without any modification. _ 3 EN 61754-21:2005 CONTENTS 1 Scope 5 2 Description .5 3 Interfaces .5 Figure 1 Plug connector interface (Push-Pull TYPE) .6 Figure 2 Plug connector interface (Friction-Lock TYPE) 8 Figure 3 Receptacle connector interface.10 Figure 4 Adaptor connector i
18、nterface 13 Table 1 Dimensions of Push-Pull TYPE plug connector interface 7 Table 2 Dimensions of Friction-Lock TYPE plug connector interface .9 Table 3 Dimensions of the receptacle connector interface .11 Table 4 Dimensions of the adaptor connector interface .14 blank 5 EN 61754-21:2005 FIBRE OPTIC
19、 CONNECTOR INTERFACES Part 21: Type SMI connector family for plastic optical fibre 1 Scope This part of IEC 61754 defines the standard interface dimensions for the type SMI (small multimedia interface) family of connectors. 2 Description Type SMI connectors are duplex plug connectors which are chara
20、cterised by a 5,0 mm pitch, and 2,5 mm ferrule diameter. Type SMI connector family includes two type plugs: plugs with push-pull latching mechanism type, and plugs with friction-lock coupling mechanism type. 3 Interfaces The subsequent pages define the standard interfaces for the SMI connector famil
21、y. This standard contains the following standard interfaces: Interface 1: Plug connector interface (push-pull type) see Figure 1 and for the maximum and minimum dimensions, Table 1 Interface 2: Plug connector interface (friction-lock type) ) see Figure 2 and for the maximum and minimum dimensions, T
22、able 2 Interface 3: Receptacle connector interface) see Figure 3 and for the maximum and minimum dimensions, Table 3 Interface 4: Adaptor connector interface) see Figure 4 and for the maximum and minimum dimensions, Table 4 The following standard interfaces are intermateable. Receptacle Adapter Plug
23、s Interface 3 Interface 4 Interface 1 Mate Mate Interface 2 Mate Mate EN 61754-21:2005 6 QRSMLFEDHnullUAUBUDUCU U T N P I C J A B UIUHUG UFUEMechanical datum plane Cover Optical datum target Mechanical datum plane Cross-section U-U G K IEC 370/05 Figure 1 Plug connector interface (push-pull type) 7
24、EN 61754-21:2005 Table 1 Dimensions of push-pull type plug connector interface Dimensions mm Remarks Reference Minimum Maximum Aa4,98 5,02 B 9,65 9,85 C 11,2 11,35 D 3,45 3,55 E 4,3 4,4 F - - 7,85 (reference) G 2,3 2,5 H 2,3 2,5 I 1,0 1,15 Radius J 3,0 3,15 Radius K 2,3 2,5 Radius L 0,3 0,5 M 2,4 2,
25、6 N 0,9 1,1 P 0,3 0,7 Chamfer Q 3,9 4,1 R 6,0 6,6 S 11,65 11,95 T - - Radius 1,3 (reference) UA 2,41 2,46 Diameter UB - - 2,9 (reference) UC 3,6 3,7 UD - - 0,2 (reference) UE 5,2 5,3 UF 2,85 3,15 UGb- - 2,0 (reference) UH 3,0 3,15 UI 5,6 5,9 aApplied for mechanical datum plane side of ferrule. The l
26、atching lever of receptacle should be able to be released by the cover actuation in the case of push-pull type. bThis dimension is the cover to be able to move EN 61754-21:2005 8 QRMLU U S N P Mechanical datum plane FEDHnullUAUBMechanical datum plane Optical datum target Cross-section U-U UCUDI C J
27、A B UEG K IEC 371/05 Figure 2 Plug connector interface (friction-lock type) 9 EN 61754-21:2005 Table 2 Dimensions of friction-lock type plug connector interface Dimensions mm Remarks Reference Minimum Maximum Aa4,98 5,02 B 9,65 9,85 C 11,2 11,35 D 3,45 3,55 E 4,3 4,4 F - - 7,85 (reference) G 2,3 2,5
28、 H 2,3 2,5 I 1,0 1,15 Radius J 3,0 3,15 Radius K 2,3 2,5 Radius L 0,3 0,5 M 2,4 2,6 N 0,9 1,1 P 0,3 0,7 Chamfer Q 6,0 6,6 R 11,65 11,95 S - - Radius 1,3 (reference) UA 2,41 2,46 Diameter UB - - 2,9 (reference) UC 5,2 5,3 UD 2,85 3,15 UE 5,6 5,9 aApplied for mechanical datum plane side of ferrule. Th
29、e latching lever of receptacle should be able to be released by the cover actuation in the case of push-pull type. EN 61754-21:2005 10 LDLALBLCIGHEFPExpanded view Q Expanded view P Cross-section N-N Cross-section M-M Cross-section L-L Optical datum target Mechanical datum plane MCMBMDMENFNDNENCNBNAQ
30、AQBPCPB PD PA CB MA CC A K Q LELFLGNNLHLILJM M L LB CA D J IEC 372/05 Figure 3 Receptacle connector interface 11 EN 61754-21:2005 Table 3 Dimensions of the receptacle connector interface Dimensions mm Remarks Reference Minimum Maximum Aa, b4,98 5,02 B 5,6 5,9 CAc11,5 11,6 CBd11,45 11,55 CC 11,4 11,6
31、 D - - 1,35 (reference) E 0,55 0,75 F 2,65 2,85 G 3,55 3,65 H 4,4 4,5 I c8,0 8,1 J 0,85 1,0 Radius K 2,85 3,0 Radius LA 2,501 2,551 Diameter LB 3,9 4,2 Diameter LC 2,75 3,0 LD 3,7 3,9 LE 5,2 5,3 LF 3,3 4,5 LG - - 5 (reference) LH 3,15 3,3 LI 5,15 5,45 LJ 6,45 6,75 MA 0,25 0,4 MB - - 0,5 (reference)
32、MC 1,34 1,46 MD - - 2,2 (reference) ME 1,4 1,8 NA 3,8 4,1 NB 4,5 4,9 NC - - 8,8 (reference) ND - - 9,5 (reference) NE 0,15 0,3 NF - - 0,7 (reference) PA - - 0,2 (reference) PB - - 1,6 (reference) PC 0,8 1,2 PD 43 47 EN 61754-21:2005 12 Table 3 (continued) Dimensions mm Remarks Reference Minimum Maxi
33、mum QA 0,2 0,7 QB 0,2 0,4 aApplied for optical datum target side of sleeve. bIt should be the center of LA dimension. cThis dimension is needed to be kept within 1mm from the insertion entrance. However, the chamfering part is excluded. (This dimension is applied from mechanical datum plane between
34、4,6 mm to 5,6 mm.) d This dimension is for the friction lock which mates with S dimension of the plug. 13 EN 61754-21:2005 LDLALBLCIGHEFPExpanded view Q Expanded view P Cross-section N-N Cross-section M-M Cross-section L-L Optical datum target Mechanical datum plane MCMBMDMENFNDNENCNBNAQAQBPCPB PD P
35、A CB MA CCA K Q LELFLGNNLHLILJM M L L B CA D JIEC 373/05 Figure 4 Adaptor connector interface EN 61754-21:2005 14 Table 4 Dimensions of the adaptor connector interface Remarks Dimensions mm Reference Minimum Maximum Aa, b4,98 5,02 B 5,6 5,9 CAc11,5 11,6 CBd11,45 11,55 CC 11,4 11,6 D - - 1,35 (refere
36、nce) E 0,55 0,75 F 2,65 2,85 G 3,55 3,65 H 4,4 4,5 Ic8,0 8,1 J 0,85 1,0 Radius K 2,85 3,0 Radius LA 2,501 2,551 Diameter LB 3,9 4,2 Diameter LC 2,75 3,0 LD 3,7 3,9 LE 5,2 5,3 LF 3,3 4,5 LG - - 5 (reference) LH 3,15 3,3 LI 5,15 5,45 LJ 6,45 6,75 MA 0,25 0,4 MB - - 0,5 (reference) MC 1,34 1,46 MD - -
37、2,2 (reference) ME 1,4 1,8 NA 3,8 4,1 NB 4,5 4,9 NC - - 5,8 (reference) ND - - 9,5 (reference) NE 0,15 0,3 NF - - 0,7 (reference) PA - - 0,2 (reference) PB - - 1,6 (reference) PC 0,8 1,2 PD 43 47 15 EN 61754-21:2005 Table 4 (continued) Dimensions mm Remarks Reference Minimum Maximum QA 0,2 0,7 QB 0,
38、2 0,4 aApplied for optical datum target side of sleeve. bIt should be the center of LA dimension. cThis dimension is needed to be kept within 1 mm from the insertion entrance. However, the chamfering part is excluded. (This dimension is applied from mechanical datum plane between 4,6 mm to 5,6 mm.)
39、dThis dimension is for friction lock which mates with S dimension of the plug. _ BS EN BSI389 Chiswick High RoadLondonW4 4AL61754-21:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe a
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