EN 61754-20:2012/A1:2022

Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 20: Type LC connector family

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Steckgesichter von Lichtwellenleiter- Steckverbindern - Teil 20: Steckverbinderfamilie der Bauart LC

Dispositifs d’interconnexion et composants passifs fibroniques - Interfaces de connecteurs à fibres optiques - Partie 20: Famille de connecteurs de type LC

Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje - 20. del: Družina konektorjev tipa LC - Dopolnilo A1 (IEC 61754-20:2012/AMD1:2022)

Amandma A1:2022 je dodatek k standardu SIST EN 61754-20:2012.
Mednarodni standard določa standardne dimenzije vmesnikov za družino konektorjev tipa LC.

General Information

• Status: Published
• Publication Date: 18-Aug-2022
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Drafting Committee: IEC/SC 86B - IEC_SC_86B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 19-Aug-2022
• Completion Date: 19-Aug-2022
• Ref Project: SIST EN 61754-20:2012/A1:2022 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 20: Type LC connector family (IEC 61754-20:2012/AMD1:2022)

Relations

• Amends: EN 61754-20:2012 - Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 20: Type LC connector family
• Effective Date: 25-Jan-2023

Overview

EN 61754-20:2012/A1:2022 is the latest amendment to the European standard specifying the interfaces for the Type LC fibre optic connector family. Published by the European Committee for Electrotechnical Standardization (CENELEC) in August 2022, this standard aligns with the international IEC 61754-20:2012/AMD1:2022 document. It defines the physical and intermateable characteristics of LC connector interfaces used in fibre optic interconnecting devices and passive components.

The update aims to ensure uniformity and compatibility in fibre optic connections by detailing interfaces for simplex, duplex, and quad configurations, covering physical contact (PC), angled physical contact (APC), and plastic optical fibre (POF) connectors of different diameters. EN 61754-20 supports consistent design and implementation across global fibre optic networks.

Key Topics

• Connector Interfaces Included:

  • Simplex and duplex plug connectors with PC and APC 8° ferrules.
  • POF connectors accommodating 1 mm and 1.25 mm outer diameter fibres.
  • Quad plug, adaptor, and active device receptacle interfaces.

• Types of Endfaces:

  • Spherically polished non-angled (PC) for low back reflection.
  • Angled physical contact (APC) with an 8° angle to further reduce back reflections.
  • Flat smooth endfaces for POF connectors.

• Intermateability Tables:

  • Comprehensive tables detail which plugs mate with various adaptors and receptacles across all interface types.
  • Plug-to-plug intermateability guidance ensures correct and efficient connector pairing.

• Mechanical and Dimensional Details:

  • Precise illustrations and tables specify connector dimensions and component layouts.
  • Includes details for ferrule diameters, mating sleeves, and cable jacket accommodations.

• Standard Versioning and Application:

  • Amendment A1 updates and clarifies key connector interface details without changing fundamental dimensional requirements.
  • National committees from CENELEC member countries are required to adopt the amendment by May 2023 and withdraw conflicting standards by August 2025.

Applications

• Telecommunications Infrastructure: EN 61754-20 interfaces support critical fibre optic links in broadband access, metro, and long-haul networks, ensuring reliable and low-loss connections.

• Data Centers and Enterprise Networks: The standard facilitates the deployment of high-density LC connectors in patch panels, switches, and active equipment, optimizing space and performance.

• Optical Active Devices: Specialized receptacle interfaces enable seamless integration with transceivers, optical amplifiers, and other fibre optic active components.

• Plastic Optical Fibre Systems: POF connector interfaces under the standard address applications in automotive, consumer electronics, and short-range communication systems where PVC-jacketed fibres are used.

• Test and Measurement Equipment: Standardized connector dimensions and intermateability ensure compatibility with fibre optic test instruments and monitoring devices.

Related Standards

• EN 61754 Series: Covers a wide range of fibre optic connector families such as SC, ST, FC, and MU, providing a holistic framework for interconnection interfaces.

• IEC 61753: Specifies performance and environmental testing standards for fibre optic interconnecting devices, complementing connector dimension standards like EN 61754-20.

• ISO/IEC 11801: International standard for generic cabling, integrating fibre optic connector interfaces for structured cabling systems.

• IEC 61300: Defines fibre optic interconnection components' test procedures, frequently used alongside EN 61754 standards for quality assurance.

Summary

EN 61754-20:2012/A1:2022 defines the mechanical and interface requirements for the widely adopted Type LC fibre optic connector family, including simplex, duplex, quad, and POF variants. It ensures consistent physical compatibility and intermateability for diverse fibre optic applications across Europe and globally. This standard is essential for manufacturers, system integrators, and network operators to guarantee reliable fibre optic connections with minimal optical loss and back reflection.

By adhering to EN 61754-20, stakeholders benefit from greater system interoperability, streamlined installation, and enhanced network performance in communication, data center, and industrial fibre optic solutions.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2022
Optični spojni elementi in pasivne komponente - Vmesniki za optične konektorje -
20. del: Družina konektorjev tipa LC - Dopolnilo A1 (IEC 61754-20:2012/AMD1:2022)
Fibre optic interconnecting devices and passive components - Fibre optic connector
interfaces - Part 20: Type LC connector family (IEC 61754-20:2012/AMD1:2022)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Steckgesichter von
Lichtwellenleiter- Steckverbindern - Teil 20: Steckverbinderfamilie der Bauart LC (IEC
61754-20:2012/AMD1:2022)
Dispositifs dinterconnexion et composants passifs fibroniques - Interfaces de
connecteurs pour fibres optiques - Partie 20: Famille de connecteurs de type LC (IEC
61754-20:2012/AMD1:2022)
Ta slovenski standard je istoveten z: EN 61754-20:2012/A1:2022
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 61754-20:2012/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM August 2022
ICS 33.180.20
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic connector interfaces - Part 20: Type LC connector
family
(IEC 61754-20:2012/AMD1:2022)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Interfaces de connecteurs à fibres optiques - Bauteile - Steckgesichter von Lichtwellenleiter-
Partie 20: Famille de connecteurs de type LC Steckverbindern - Teil 20: Steckverbinderfamilie der
(IEC 61754-20:2012/AMD1:2022) Bauart LC
(IEC 61754-20:2012/AMD1:2022)
This amendment A1 modifies the European Standard EN 61754-20:2012; it was approved by CENELEC on 2022-08-03. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61754-20:2012/A1:2022 E

European foreword
The text of document 86B/4534/CDV, future IEC 61754-20/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 61754-20:2012/A1:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-05-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-08-03
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 61754-20:2012/AMD1:2022 was approved by CENELEC as
a European Standard without any modification.

IEC 61754-20 ®
Edition 2.0 2022-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Fibre optic interconnecting devices and passive components – Fibre optic

connector interfaces –
Part 20: Type LC connector family

Dispositifs d’interconnexion et composants passifs fibroniques – Interfaces de

connecteurs à fibres optiques –

Partie 20: Famille de connecteurs de type LC

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-3953-7

– 2 – IEC 61754-20:2012/AMD1:2022
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR INTERFACES –

Part 20: Type LC 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 made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they
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