SIST EN IEC 61754-37:2026
(Main)Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 37: Type MDC connector family (IEC 61754-37:2025)
Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 37: Type MDC connector family (IEC 61754-37:2025)
IEC 61754-37:2025 defines the standard mechanical interface dimensions for the type MDC family of connectors.
Lichtwellenleiter-Verbindungselemente und passive Bauteile - Steckgesichter von Lichtwellenleiter-Steckverbindern - Teil 37: Steckverbinderfamilie Typ MDC (IEC 61754-37:2025)
Dispositifs d'interconnexion et composants passifs fibroniques - Interfaces de connecteurs fibroniques - Partie 37: Famille de connecteurs de type MDC (IEC 61754-37:2025)
IEC 61754-37:2025 définit les dimensions des interfaces mécaniques normales pour la famille de connecteurs de type MDC.
Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje - 37. del: Družina konektorjev vrste MDC (IEC 61754-37:2025)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2026
Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje -
37. del: Družina konektorjev vrste MDC (IEC 61754-37:2025)
Fibre optic interconnecting devices and passive components - Fibre optic connector
interfaces - Part 37: Type MDC connector family (IEC 61754-37:2025)
Lichtwellenleiter-Verbindungselemente und passive Bauteile - Steckgesichter von
Lichtwellenleiter-Steckverbindern - Teil 37: Steckverbinderfamilie Typ MDC (IEC 61754-
37:2025)
Dispositifs d'interconnexion et composants passifs fibroniques - Interfaces de
connecteurs fibroniques - Partie 37: Famille de connecteurs de type MDC (IEC 61754-
37:2025)
Ta slovenski standard je istoveten z: EN IEC 61754-37:2025
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61754-37
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2025
ICS 33.180.20
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces - Part 37: Type MDC connector
family
(IEC 61754-37:2025)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter-Verbindungselemente und passive
fibroniques - Interfaces de connecteurs fibroniques - Partie Bauteile - Steckgesichter von Lichtwellenleiter-
37: Famille de connecteurs de type MDC Steckverbindern - Teil 37: Steckverbinderfamilie Typ MDC
(IEC 61754-37:2025) (IEC 61754-37:2025)
This European Standard was approved by CENELEC on 2025-10-15. 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 concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61754-37:2025 E
European foreword
The text of document 86B/5088/FDIS, future edition 1 of IEC 61754-37, prepared 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 approved by CENELEC as EN IEC 61754-37:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-10-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-10-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61754-37:2025 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61754-4 NOTE Approved as EN IEC 61754-4
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60794-2-50 - Optical fibre cables - Part 2-50: Indoor EN IEC 60794-2-50 -
cables - Family specification for simplex
and duplex cables for use in terminated
cable assemblies
IEC 61754-1 - Fibre optic interconnecting devices and EN 61754-1 -
passive components - Fibre optic
connector interfaces - Part 1: General and
guidance
IEC 61755-3-1 - Fibre optic interconnecting devices and EN IEC 61755-3-1 -
passive components - Connector optical
interfaces - Part 3-1: Connector
parameters of dispersion unshifted single-
mode physically contacting fibres - Non-
angled 2,5 mm and 1,25 mm diameter
cylindrical full zirconia ferrules
IEC 61755-3-2 - Fibre optic interconnecting devices and EN IEC 61755-3-2 -
passive components - Connector optical
interfaces - Part 3-2: Connector
parameters of dispersion unshifted single-
mode physically contacting fibres - Angled
2,5 mm and 1,25 mm diameter cylindrical
full zirconia ferrules
IEC 63267 series Fibre optic interconnecting devices and EN IEC 63267 series
passive components - Fibre optic
connector optical interfaces
IEC 61754-37 ®
Edition 1.0 2025-09
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components - Fibre optic
connector interfaces -
Part 37: Type MDC connector family
ICS 33.180.20 ISBN 978-2-8327-0716-6
IEC 61754-37:2025-09(en)
IEC 61754-37:2025 © IEC 2025
CONTENTS
FOREWORD . 2
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Abbreviated terms. 4
5 Description . 4
6 Interfaces . 5
Annex A (informative) Additional adaptor dimensional information . 15
Annex B (normative) Oriented fibre core location . 21
Annex C (informative) MDC latch . 22
Bibliography . 24
Figure 1 – Duplex connector plug datum target . 5
Figure 2 – Duplex connector plug interface . 6
Figure 3 – Quadruplex connector plug interface . 6
Figure 4 – Angled PC duplex connector plug interface . 7
Figure 5 – Duplex adaptor interface . 9
Figure 6 – Quadruplex adaptor interface . 10
Figure 7 – Pin gauge for adaptors and active device receptacle interface . 11
Figure 8 – Duplex active device receptacle interface . 12
Figure 9 – Quadruplex active device receptacle interface . 13
Figure A.1 – Duplex reduced flange adaptor and full flange adaptor . 15
Figure A.2 – Quadruplex reduced flange adaptor and full flange adaptor . 17
Figure A.3 – Octoplex reduced flange adaptor and full flange adaptor . 19
Figure B.1 – Oriented fibre core locations . 21
Figure C.1 – Latch and latch release . 22
Figure C.2 – Thumb latch . 23
Table 1 – Plug to adaptor/receptacle intermateability . 5
Table 2 – Dimensions of the duplex connector plug interface (PC and APC) . 7
Table 3 – Dimensions of duplex and quadruplex adaptor interfaces . 10
Table 4 – Pin gauge dimensions . 11
Table 5 – Dimensions of duplex and quadruplex active device receptacle interface . 14
Table A.1 – Dimensions of duplex reduced flange adaptor and full flange adaptor . 16
Table A.2 – Dimensions of quadruplex reduced flange adaptor and full flange adaptor . 18
Table A.3 – Dimensions of octoplex reduced flange adaptor and full flange adaptor . 20
IEC 61754-37:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces -
Part 37: Type MDC connector family
FOREWORD
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