FprEN IEC 61300-2-50:2026

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und Messverfahren - Teil 2-50: Prüfungen - Festigkeitsprüfung für Lichtwellenleiter-Steckverbinder

Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes fondamentales d'essais et de mesures - Partie 2-50: Essais - Essai de résistance des connecteurs à fibres optiques sous charge statique

Optični spojni elementi in pasivne komponente - Osnovni preskusni in merilni postopki - 2-50. del: Preskusi - Preskus preverjanja optičnih konektorjev s statično obremenitvijo

General Information

• Status: Not Published
• Publication Date: 18-Oct-2026
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: CLC/TC 86BXA - Fibre optic interconnect, passive and connectorised components
• Current Stage: 5020 - Vote circulated - Formal Approval
• Start Date: 05-Jun-2026
• Due Date: 31-Dec-2025
• Completion Date: 05-Jun-2026
• Ref Project: kSIST FprEN IEC 61300-2-50:2026 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-50: Tests - Fibre optic connector proof test with static load

Relations

• Revises: EN 61300-2-50:2007/AC:2015 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-50: Tests - Fibre optic connector proof test with static load - Singlemode and multimode
• Effective Date: 13-Aug-2024
• Revises: EN 61300-2-50:2007 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-50: Tests - Fibre optic connector proof test with static load - Singlemode and multimode
• Effective Date: 13-Aug-2024

Overview

FprEN IEC 61300-2-50:2026 specifies a standardized method for testing fibre optic connectors under static loads. Published by CLC, this standard is part of the IEC 61300 series, which addresses fibre optic interconnecting devices and passive components. The primary objective of Part 2-50 is to quantitatively assess the mechanical and optical resilience of fibre optic connectors terminated to cables or buffered fibres-covering single-mode and multimode types-by subjecting them to specific static loads. This testing process is essential for ensuring connectors can withstand physical stresses during installation and maintenance without physical damage, uncoupling, or permanent performance loss.

Key Topics

• Test Scope and Purpose
  The static load proof test simulates mechanical stresses encountered during fibre optic installation or maintenance. It verifies the ability of connectors to retain coupling integrity, avoid physical assembly damage, and maintain optical performance (attenuation, return loss) under load.

• Test Apparatus
  The test setup comprises:

  • A mounting fixture with adjustable orientation for both straight and side pulls.
  • A mandrel, sized not smaller than the minimum cable bend diameter.
  • A force generator, either through controlled weights or a tensile test machine.
  • Provisions for mounting both adaptors and pulling caps depending on connector design.

• Test Procedures

  • Pre-test preparation includes examination and cleaning of device under test (DUT), as well as recording baseline optical properties.
  • DUT is mounted and subjected to specified static loads at various pull angles (0° and 90°).
  • Loads are applied smoothly, and performance measurements are recorded after testing.
  • Final visual and optical inspections ensure no permanent degradation.

• Severity Levels
  Test severities-load and duration-differ by connector type and are determined according to referenced performance and reliability standards (IEC 61753, IEC 62005). Test results validate that the post-load optical performance remains within defined acceptance criteria.

Applications

FprEN IEC 61300-2-50 is vital for stakeholders across the fibre optic industry, including manufacturers, network operators, testing laboratories, and quality assurance teams. Applications include:

• Product Qualification and Reliability Testing
  Ensures connectors meet mechanical robustness required for deployment in various environments, including field installations where abrupt pulls or stresses are likely.

• Design Verification
  Supports R&D and engineering teams in verifying that new or modified connector designs comply with industry expectations for durability and optical integrity.

• Regulatory and Contractual Compliance
  Provides an internationally recognized test procedure for certifying products according to national and international procurement specifications.

• Installation and Maintenance Procedures
  Guides network operators and installers to select and qualify connector systems suitable for anticipated mechanical stresses.

Related Standards

For complete and interoperable fibre optic connector testing and measurement, the following standards provide essential reference points:

• IEC 61300-1 - General guidance for fibre optic interconnecting device testing.
• IEC 61753 Series - Performance standards for various fibre optic components.
• IEC 62005 Series - Reliability qualification standards for fibre optic devices and systems.
• IEC 60529 - IP code for ingress protection of enclosures, relevant for sealed or hardened connectors.
• IEC 61300-2-38 - Sealing tests for fibre optic closures.
• IEC 61300-3-1 / IEC 61300-3-3 - Visual examination and optical performance measurement methods.
• IEC 61300-3-35 - Visual inspection of fibre optic connectors and transceivers.
• IEC TR 62627-01 - Fibre optic connector cleaning methods.

Summary

Adopting FprEN IEC 61300-2-50:2026 supports rigorous, repeatable testing of fibre optic connectors, ensuring product reliability, safety, and compliance with international standards. This proof test is key to validating connector performance under real-world mechanical stress, guaranteeing long-term stability and optimal performance in advanced fibre optic communication networks.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61300-2-50:2025
01-maj-2025
Optični spojni elementi in pasivne komponente - Osnovni postopki preskušanja in
merjenja - 2-50. del: Preskusi - Preskus preverjanja optičnih konektorjev s statično
obremenitvijo
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 2-50: Tests - Fibre optic connector proof test with static
load
Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes
fondamentales d'essais et de mesures - Partie 2-50: Essais - Essai de résistance des
connecteurs à fibres optiques sous charge statique
Ta slovenski standard je istoveten z: prEN IEC 61300-2-50:2025
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
oSIST prEN IEC 61300-2-50:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61300-2-50:2025

oSIST prEN IEC 61300-2-50:2025
86B/5004/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61300-2-50 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-03-21 2025-06-13
SUPERSEDES DOCUMENTS:
86B/4948/CD, 86B/4960A/CC
IEC SC 86B : FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS
SECRETARIAT: SECRETARY:
Japan Mr Ryo Koyama
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Fibre optic interconnecting devices and passive components - Basic test and measurement
procedures - Part 2-50: Tests - Fibre optic connector proof test with static load
PROPOSED STABILITY DATE: 2033
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 61300-2-50:2025
IEC CDV 61300-2-50  IEC 2025 2 86B/5004/CDV
1 CONTENTS
3 FOREWORD . 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 6
7 4 General description . 6
8 5 Apparatus . 6
9 5.1 General . 6
10 5.2 Mounting fixture . 6
11 5.3 Mandrel . 6
12 5.4 Force generator . 6
13 6 Test setup . 7
14 6.1 Fibre optic connector proof test with static load setup . 7
15 6.2 Optical measurement equipment . 8
16 7 Procedure . 8
17 7.1 Preparation of DUT . 8
18 7.2 Preconditioning . 8
19 7.3 Measure of initial optical properties . 8
20 7.4 Mounting of DUT . 8
21 7.5 Straight pull (pulling cap – plug – cable) . 9
22 7.6 Straight pull (adaptor – plug – cable) . 9
23 7.7 Side pull (adaptor – plug – cable). 9
24 7.8 Final measurements and examinations . 9
25 8 Severity . 9
26 9 Details to be specified and reported. 10
28 Figure 1 – Fibre optic connector proof test with static load setup . 7
29 Figure 2 – Application of the load in the case of duplex cordage . 8
31 Table 1 – Test severities . 10
oSIST prEN IEC 61300-2-50:2025
IEC CDV 61300-2-50  IEC 2025 3 86B/5004/CDV
33 INTERNATIONAL ELECTROTECHNICAL COMMISSION
34 ____________
36 FIBRE OPTIC INTERCONNECTING
37 DEVICES AND PASSIVE COMPONENTS –
38 BASIC TEST AND MEASUREMENT PROCEDURES –
40 Part 2-50: Tests – Fibre optic connector proof test with static load
42 FOREWORD
43 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
44 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
45 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
46 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
47 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
48 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
49 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
50 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
51 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
52 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
53 consensus of opinion on the relevant subjects since each technical committee has representation from all
54 interested IEC National Committees.
55 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
56 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
57 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
58 misinterpretation by any end user.
59 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
60 transparently to the maximum extent possible in their national and regional publications. Any divergence between
61 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
62 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
63 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
64 services carried out by independent certification bodies.
65 6) All users should ensure that they have the latest edition of this publication.
66 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
67 members of its technical committees and IEC National Committees for any personal injury, property damage or
68 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
69 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
70 Publications.
71 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
72 indispensable for the correct application of this publication.
73 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
74 patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
75 respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
76 may be required to implement this document. However, implementers are cautioned that this may not represent
77 the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
78 shall not be held responsible for identifying any or all such patent rights.
79 IEC 61300-2-50 has been prepared by subcommittee 86B: Fibre optic interconnecting devices
80 and passive components, of IEC technical committee 86: Fibre optics. It is an International
81 Standard.
82 This second edition cancels and replaces the first edition published in 2007. This edition
83 constitutes a technical revision.
84 This edition includes the following significant technical changes with respect to the previous
85 edition:
86 a) added normative references clause;
87 b) added terms and definitions clause;
88 c) added the straight pull test of pulling cap – plug – cable configuration;

oSIST prEN IEC 61300-2-50:2025
IEC CDV 61300-2-50  IEC 2025 4 86B/5004/CDV
89 d) the test procedure was modified including previsions for hardened connectors;
90 e) the severity of the test was updated according to the component and performance category;
91 f) added details to be specified and reported clause.
92 The text of this standard is based on the following documents:
Draft Report on voting
86B/XX/FDIS 86B/XX/RVD
94 Full information on the voting for its approval can be found in the report on voting indicated in
95 the above table.
96 The language used for the development of this International Standard is English.
97 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
98 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
99 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
100 described in greater detail at www.iec.ch/publications.
101 A list of all parts of IEC 61300 series, published under the general title Fibre optic
102 interconnecting devices and passive components – Basic test and measurement procedures,
103 can be found on the IEC website.
104 The committee has decided that the contents of this document will remain unchanged until the
105 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
106 specific document. At this date, the document will be
107 • reconfirmed,
108 • withdrawn,
109 • replaced by a revised edition, or
110 • amended.
oSIST prEN IEC 61300-2-50:2025
IEC CDV 61300-2-50  IEC 2025 5 86B/5004/CDV
113 FIBRE OPTIC INTERCONNECTING
114 DEVICES AND PASSIVE COMPONENTS –
115 BASIC TEST AND MEASUREMENT PROCEDURES –
117 Part 2-50: Tests – Fibre optic connector proof test with static load
120 1 Scope
121 This part of IEC 61300 describes a test to quantitatively assess the capability of a connector
122 terminated to a reinforced cable of any diameter or a buffered fibre, both single-mode and
123 multimode, to withstand static loads without uncoupling of the connector, physical damage to
124 the assembly or permanent degradation of optical performance.
125 2 Normative references
126 The following documents are referred to in the text in such a way that some or all of their content
127 constitutes requirements of this document. For dated references, only the edition cited applies.
128 For undated references, th
...