EN IEC 61754-4:2022/A1:2026
(Amendment)Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family
- Status
- Published
- Publication Date
- 13-Aug-2026
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 14-Aug-2026
- Due Date
- 30-Jun-2027
- Completion Date
- 14-Aug-2026
EN IEC 61754-4:2022/A1:2026 is a CENELEC European Amendment for the fibre optic connector interfaces of the Type SC connector family. It updates the European Standard EN IEC 61754-4:2022 with revised interface drawings, dimensions, grade characteristics and normative references for SC connector plugs and receptacles. Engineers, manufacturers, buyers and test laboratories use it to specify, make and check SC interface compatibility.
What does EN IEC 61754-4:2022/A1:2026 specify?
EN IEC 61754-4:2022/A1:2026 specifies amendments to the European Standard for Type SC fibre optic connector interfaces. In practice, it updates the interface definitions used when designing, inspecting or purchasing SC connector hardware.
The amendment is organized as changes to the existing figures, tables, bibliography and normative references, plus Annex ZA for the European references.
| Annex | What it covers |
|---|---|
| ZA | Normative references to international publications and their corresponding European publications |
What are the key requirements of EN IEC 61754-4:2022/A1:2026?
This amendment mainly redirects several dimensional and grade requirements to the IEC 61755-3 series and the IEC 63267-3 series, and it revises the drawings and tables for SC plug and receptacle interfaces. For users, that means some interface details now have to be checked against companion standards instead of the earlier individual references.
Normative references and companion series
- EN IEC 61754-4:2022/A1:2026 adds the IEC 61755-3 series and the IEC 63267-3 series as normative references. This matters because the SC interface requirements now rely on those series for connector parameter values.
- Annex ZA maps those international publications to their European publications. In practice, a buyer or test lab can use the European equivalents when specifying conformance in Europe.
Simplex and duplex PC plug interfaces
- The amendment replaces the drawings for the simplex PC plug connector interface and the duplex PC plug connector interface. It also updates the related dimension tables so that several dimensions are now defined by the IEC 61755-3 series or the IEC 63267-3 series.
- The grade tables for simplex and duplex PC plug connectors are revised. Grade A is no longer given a specific grade value in these tables, while grades B, C and D now point to the updated companion series. This matters when selecting ferrules or checking incoming parts against a defined grade.
Angled PC plug interfaces and gauge checks
- The simplex and duplex angled PC plug connector interfaces are updated, including changes to figure titles and the associated dimensional table entries. One duplex angled dimension is newly constrained, which is relevant for mechanical fit and mating checks.
- The pin gauge dimension table is also revised, with the surface finish requirement rewritten as an Ra limit. For production and inspection teams, that affects the acceptance criteria for gauges used in checking connector parts.
Active device receptacle interface
- The table for the simplex active device receptacle interface for the PC connector plug is updated. The change tightens one listed maximum dimension, so manufacturers and inspectors need to use the amended limit when verifying receptacles intended for active devices.
What terms does EN IEC 61754-4:2022/A1:2026 define?
- SC - The connector family named in the standard’s title and interface drawings.
- PC - Physically contacting, used for the plug connector interface variants covered here.
- Simplex - A single connector interface arrangement.
- Duplex - A paired connector interface arrangement.
- Active device receptacle interface - The receptacle interface used with a PC connector plug on active devices.
- Ra - A surface roughness parameter used for the pin gauge finish requirement.
- CENELEC - European Committee for Electrotechnical Standardization.
- IEC - International Electrotechnical Commission.
Who uses EN IEC 61754-4:2022/A1:2026?
EN IEC 61754-4:2022/A1:2026 is used by fibre optic connector manufacturers, component designers, quality managers, test laboratories and conformity assessment bodies. It is also relevant to purchasers and specification writers who need to define SC interface compatibility for fibre optic interconnecting devices and passive components.
What changed in EN IEC 61754-4:2022/A1:2026 from the previous edition?
EN IEC 61754-4:2022/A1:2026 modifies EN IEC 61754-4:2022 by updating the technical basis for several SC interface dimensions and grades. The amendment:
- adds normative references to the IEC 61755-3 series and the IEC 63267-3 series;
- replaces the main simplex PC plug figure and the simplex PC plug and duplex PC plug interface figures;
- revises tables for simplex and duplex PC plug dimensions and grade characteristics;
- revises the pin gauge finish requirement;
- updates the simplex and duplex angled PC plug interface tables and figure titles;
- updates the simplex active device receptacle interface table;
- adjusts Annex ZA and the bibliography notes.
Which standards are used with EN IEC 61754-4:2022/A1:2026?
EN IEC 61754-4:2022/A1:2026 uses two companion series as normative references:
- IEC 61755-3 series - provides connector parameters for dispersion unshifted single-mode physically contacting fibres.
- IEC 63267-3 series - provides connector parameters for physically contacting 50 μm core diameter fibres for enhanced macrobend multimode fibres.
These references supply the detailed parameter values that the amended SC interface tables point to.
What does the EN IEC 61754-4:2022/A1:2026 document contain?
The document contains amended interface drawings, dimension tables, grade characteristic tables, a pin gauge table and an active device receptacle table. It also contains Annex ZA, which links the referenced IEC publications to their European equivalents.
For practical use, the document supports design checks, incoming inspection, compatibility verification and specification writing for SC fibre optic connector interfaces.
Relations
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 28-Jul-2026
- Effective Date
- 14-Jan-2025
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Frequently Asked Questions
EN IEC 61754-4:2022/A1:2026 is a amendment published by CLC. Its full title is "Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family". This standard covers: Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family
Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 4: Type SC connector family
EN IEC 61754-4:2022/A1:2026 is classified under the following ICS (International Classification for Standards) categories: 33.180.20 - Fibre optic interconnecting devices. The ICS classification helps identify the subject area and facilitates finding related standards.
EN IEC 61754-4:2022/A1:2026 has the following relationships with other standards: It is inter standard links to EN IEC 61755-3-1:2024, EN IEC 63267-3-61:2025, EN IEC 61755-3-2:2024, EN IEC 63267-3-81:2025, EN IEC 61754-4:2022. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN IEC 61754-4:2022/A1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2026
Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje -
4. del: Konektorska družina vrste SC - Dopolnilo A1 (IEC 61754-4:2022/AMD1:2026)
Amendment 1 - Fibre optic interconnecting devices and passive components - Fibre
optic connector interfaces - Part 4: Type SC connector family (IEC 61754-
4:2022/AMD1:2026)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Steckgesichter von
Lichtwellenleiter-Steckverbindern - Teil 4: Steckverbinderfamilie der Bauart SC (IEC
61754-4:2022/AMD1:2026)
Amendement 1 - Dispositifs d’interconnexion et composants passifs fibroniques -
Interfaces de connecteurs fibroniques - Partie 4: Famille de connecteurs de type SC
(IEC 61754-4:2022/AMD1:2026)
Ta slovenski standard je istoveten z: EN IEC 61754-4:2022/A1:2026
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 61754-4:2022/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2026
ICS 33.180.20
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces - Part 4: Type SC connector
family
(IEC 61754-4:2022/AMD1:2026)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Interfaces de connecteurs fibroniques - Bauteile - Steckgesichter von Lichtwellenleiter-
Partie 4: Famille de connecteurs de type SC Steckverbindern - Teil 4: Steckverbinderfamilie der Bauart
(IEC 61754-4:2022/AMD1:2026) SC
(IEC 61754-4:2022/AMD1:2026)
This amendment A1 modifies the European Standard EN IEC 61754-4:2022; it was approved by CENELEC on 2026-07-24. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61754-4:2022/A1:2026 E
European foreword
The text of document 86B/5124/CDV, future edition 3 of IEC 61754-4/AMD1, 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-
4:2022/A1:2026.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2027-08-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2029-08-31
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 61754-4:2022/AMD1:2026 was approved by CENELEC as
a European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 61755-3-1 NOTE Approved as EN IEC 61755-3-1
IEC 61755-3-2 NOTE Approved as EN IEC 61755-3-2
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.
Add the following references:
Publication Year Title EN/HD Year
IEC 61755-3 series Fibre optic interconnecting devices and EN IEC 61755-3 series
passive components - Connector optical
interfaces: Connector parameters of dispersion
unshifted single-mode physically contacting
fibres
IEC 63267-3 series Fibre optic interconnecting devices and EN IEC 63267-3 series
passive components - Fibre optic connector
optical interfaces for enhanced macrobend
multimode fibres: Connector parameters of
physically contacting 50 μm core diameter
fibres
IEC 61754-4 ®
Edition 3.0 2026-06
INTERNATIONAL
STANDARD
AMENDMENT 1
Fibre optic interconnecting devices and passive components - Fibre optic
connector interfaces -
Part 4: Type SC connector family
ICS 33.180.20 ISBN 978-2-8327-1329-7
IEC 61754-4:2022-02/AMD1:2026-06(en)
IEC 61754-4:2022/AMD1:2026 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces -
Part 4: Type SC connector family
AMENDMENT 1
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to 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. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are m
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