33.180 - Fibre optic communications
ICS 33.180 Details
Fibre optic communications
Glasfaser-Kommunikation
Communication par fibres optiques
Komunikacije po optičnih vlaknih
General Information
Frequently Asked Questions
ICS 33.180 is a classification code in the International Classification for Standards (ICS) system. It covers "Fibre optic communications". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 3655 standards classified under ICS 33.180 (Fibre optic communications). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
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- Amendment7 pagesEnglish languagee-Library read for1 day
IEC 61753-021-03:2026 defines minimum initial test and measurement requirements and severities which single-mode fibre optic connectors terminated as a pigtail or a patchcord satisfy in order to be categorized as meeting the IEC standard category OP (outdoor protected environment), as defined in IEC 61753-1. If tests are performed on the connectors terminated as pigtails or patchcords for category OPHD, OP+ or OP+HD and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category OP. If tests are performed on the connectors terminated as pigtails or patchcords for category OP, and the product passes these tests, the product will be automatically qualified or categorized as meeting the IEC standard for category C or CHD.
This first edition cancels and replaces the first edition of IEC 61753-021-3 published in 2012.
This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) update of environmental categories (from U to OP), tests and their severities in accordance with IEC 61753‑1;
b) changes in the terms and definitions of the different types of test samples (pigtail test samples and patchcord test samples) used in the various tests to avoid confusion;
c) update of fibre naming conventions in accordance with IEC 60793‑2‑50 and addition of provisions for B‑657 fibres;
d) addition of all the attenuation and return loss grades defined in IEC 61753‑1;
e) deletion of the static side load test;
f) addition of provisions for rectangular ferrule connectors;
g) addition of the fibre optic connector proof test with static load – side pull;
h) update of the flexing of the strain relief test to use change of attenuation instead of transient loss;
i) addition of Annex B for visual examination of the outer cable sheath movement of reinforced cables as an additional requirement for change of temperature, cable retention and flexing of the strain relief tests.
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IEC 60794-1-126:2026 defines the test procedures used to establish uniform requirements for mechanical performance - galloping. It applies to optical fibre cables like ADSS, OPGW or OPPC that can be exposed to galloping phenomena. See IEC 60794-1-2 for general requirements and definitions and for a complete reference guide to test methods of all types. This first edition cancels and replaces Method E26 of the first edition of IEC 60794‑1‑21 published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of "for ADSS" and "for OPGW and OPPC" in 4.7, a);
b) Addition of "L4" in Figure 1 and in 4.7, b);
c) Change of the specified static sag angle to ≤ 1,5±0,5°;
d) Improvement of Figure 1;
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IEC 61753-022-13:2026 defines the minimum initial test and measurement requirements, and severities which multimode fibre optic connectors terminated as a pigtail or a patchcord satisfy in order to be categorized as meeting the IEC standard category OP+HP (Extended outdoor protected environment with additional heat dissipation), as defined in IEC 61753-1.
If tests are performed on the connectors terminated as pigtails or patchcords for category OP+HP, and the product pass, the product will be automatically qualified or categorized as meeting the IEC standard for categories OP+, OP, OPHD, C and CHD.
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IEC 61754-2: 2026 defines the standard interface dimensions for type BFOC/2,5 family of connectors.
This second edition cancels and replaces the first edition published in 1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of Clause 2, Clause 3 and the Bibliography;
b) addition of the active device receptacle interface type;
c) revision of the ferrule grades to refer to the connector optical interfaces specified in the IEC 61755-3 series;
d) revision of the ferrule end face geometry to refer to the connector optical interfaces specified in the IEC 61755‑3 series and IEC 63267‑3 series;
e) improvement of the description of the characteristics of the resilient alignment sleeve for adaptor and rigid bore sleeve for active device receptacle;
f) harmonisation of the dimensions of reference A for the rigid bore sleeve with other connector interface standards in IEC 61754 series.
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IEC 60794-1-136:2026 specifies procedures to determine the maximum allowable push force applied on cables during the installation by blowing. Currently this parameter is determined by a separate test on the cable before installation. The methods specified in this document apply primarily to low-diameter cables (microduct cables according to IEC 60794-5) without rigid strength elements (e.g. GRP rods).
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IEC 61757:2026 defines, classifies, and provides a framework of generic tests or measurement methods for characterizing and specifying fibre optic sensors, including their specific components and subassemblies. The requirements of this document apply to all related fibre optic sensor standards that are part of the IEC 61757 series. Other parts of the IEC 61757 series contain requirements that are specific to sensors that measure particular quantities, and to a particular style or variant of such a fibre optic sensor. This second edition cancels and replaces the first edition published in 2018. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) expansion of the list of metrological parameters; b) updates of the terms and definitions; c) updates of the normative references and bibliography; d) updates of the technical descriptions in Annex A.
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IEC 61300-2-33:2026 evaluates the behaviour of a fibre optic mechanical splice, a fibre management system, a protective housing or a hardened connector after being subjected to a specified number of assembly and disassembly operations.
The test procedures described in this document simulate conditions that the component can encounter during its service lifetime to check the following performance characteristics:
- capability of an optical mechanical splice to be reinstalled after being disassembled;
- capability to reintroduce fibre management systems and protective housings, accessing fibres and optical components and making reconfigurations without disturbing transmission in adjacent fibre circuits;
- sealing performance of the protective housing after frequent opening and closing operations;
- sealing performance of the hardened connector after frequent mating and demating operations.
This fourth edition cancels and replaces the third edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) update of the terms and definitions according to IEC 61753-1:2018 and IEC 61756‑1:2019;
b) update of the test severities according to the new edition of IEC 61753-1:2018;
c) addition of procedure D to verify the sealing performance after frequent mating and demating of a hardened connector.
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IEC 61753-022-02: 2026 defines the minimum initial test and measurement requirements and severities which multimode fibre optic connectors terminated as a pigtail or patchcord satisfy in order to be categorized as meeting the IEC standard category C (controlled environment), as defined in IEC 61753‑1. This first edition cancels and replaces the second edition of IEC 61753-022-2 published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of provisions for rectangular ferrule connectors;
b) additions of terms and definitions;
c) update of the fibre naming conventions in accordance with IEC 60793-2-10;
d) update of test severities in accordance with IEC 61753‑1;
e) addition of the torsion test;
f) reduction of the duration of the fibre/cable retention test on reinforced cables from 120 s to 60 s minimum;
g) deletion of the static side load test;
h) update of the flexing of the strain relief test to use the change in attenuation instead of the transient loss;
i) reduction of the number of mating durability cycles for cylindrical ferrule connectors from 500 cycles to 200 cycles;
j) addition of the mating durability for rectangular ferrule connectors with 50 cycles;
k) addition of Annex B for visual examination of the outer cable sheath movement of reinforced cables as an additional requirement for change of temperature, cable retention and flexing of the strain relief tests.
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IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOAs), and planar optical waveguides (POWAs). This document does not apply to polarization-maintaining optical amplifiers. This document defines uniform requirements for accurate and reliable measurements, by means of the electrical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1, Clause 3:
a) nominal output signal power;
b) gain;
c) reverse gain;
d) maximum gain;
e) polarization-dependent gain.
In addition, this test method provides a means for measuring the following parameters:
- maximum gain wavelength;
- gain wavelength band.
This document specifically covers single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies.
NOTE 1 The applicability of the test methods described in this document to distributed Raman amplifiers is for further study.
NOTE 2 A test method for polarization-maintaining optical amplifiers is for further study.
This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of information on the applicability of this document to the scope;
b) harmonization of the scope with the IEC 61290-1 series;
c) addition of safety recommendations to Clause 4 and Clause 5;
d) correction of an error in Clause 7, item e);
e) replacement of the term "wavelength measurement accuracy" with "wavelength accuracy".
- Standard19 pagesEnglish languagee-Library read for1 day
This part of IEC 62496 defines the standard interface dimensions for a terminated waveguide optical circuit board (OCB) assembly (referred to simply as "assembly") with a single-row thirtytwo-channel polymer MT(PMT) connector, such a PMT being intermateable with the rectangular ferrule of a single-row type MPO 16 connector.
- Standard19 pagesEnglish languagee-Library read for1 day
IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOAs), and planar optical waveguides (POWAs). This document does not apply to polarization-maintaining optical amplifiers. This document defines uniform requirements for accurate and reliable measurements, by means of the electrical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1, Clause 3: a) nominal output signal power; b) gain; c) reverse gain; d) maximum gain; e) polarization-dependent gain. In addition, this test method provides a means for measuring the following parameters: - maximum gain wavelength; - gain wavelength band. This document specifically covers single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies. NOTE 1 The applicability of the test methods described in this document to distributed Raman amplifiers is for further study. NOTE 2 A test method for polarization-maintaining optical amplifiers is for further study. This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of information on the applicability of this document to the scope; b) harmonization of the scope with the IEC 61290-1 series; c) addition of safety recommendations to Clause 4 and Clause 5; d) correction of an error in Clause 7, item e); e) replacement of the term "wavelength measurement accuracy" with "wavelength accuracy".
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This part of IEC 62496 defines the standard interface dimensions for a terminated waveguide optical circuit board (OCB) assembly (referred to simply as assembly) using single-row thirty-two-channel connectors for polymer waveguides connected with a PMT connector, and the PMT connector is intermateable with MPO 16 specified in IEC 61754-7-4.
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IEC 61300-3-50:2025 describes the procedure to measure the crosstalk of optical signals between the ports of a multiport M x N (M input ports and N output ports) fibre optic spatial switch. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) revising structure of the document.
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IEC 61757-1-4:2025 defines the terminology, structure, and measurement methods of distributed fibre optic sensors for absolute strain measurements based on spectral correlation analysis of Rayleigh backscattering signatures in single-mode fibres, where the fibre is the distributed strain measurement element in a measurement range from about 10 m to tens of km. This document also applies to hybrid sensor systems that combine the advantages of Brillouin and Rayleigh backscattering effects to obtain optimal measurement quality. This document also specifies the most important features and performance parameters of these distributed fibre optic strain sensors defines procedures for measuring these features and parameters. This part of IEC 61757 does not apply to point measurements or to dynamic strain measurements. Distributed strain measurements using Brillouin scattering in single-mode fibres are covered in IEC 61757-1-2. The most relevant applications of this strain measurement technique are listed in Annex A, while Annex B provides a short description of the underlying measurement principle.
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IEC 60794-1-131:2026 describes the test procedures used to establish uniform requirements for microduct used to install optical fibre cables by blowing technique for the mechanical property - microduct inner clearance test. This document applies to microduct for use in optical fibre cable installation by blowing.
NOTE Throughout the document, the wording “optical cable” can also include optical fibre units, microduct fibre units, etc.
This first edition cancels and replaces Method E31 of the first edition of IEC 60794-1-21 published in 2015, Amendment 1:2020. This edition constitutes a technical revision. edition includes the significant technical changes with respect to IEC 60794‑1‑21:2015/AMD1:2020:
a) Specification of Method E31.
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- Amendment7 pagesEnglish languagee-Library read for1 day
IEC 61757:2026 defines, classifies, and provides a framework of generic tests or measurement methods for characterizing and specifying fibre optic sensors, including their specific components and subassemblies. The requirements of this document apply to all related fibre optic sensor standards that are part of the IEC 61757 series. Other parts of the IEC 61757 series contain requirements that are specific to sensors that measure particular quantities, and to a particular style or variant of such a fibre optic sensor. This second edition cancels and replaces the first edition published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) expansion of the list of metrological parameters;
b) updates of the terms and definitions;
c) updates of the normative references and bibliography;
d) updates of the technical descriptions in Annex A.
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IEC 61291-5-2:2017 applies to optical amplifiers (OAs) and optically amplified, elementary sub-systems for terrestrial applications, using active fibres (optical fibre amplifiers (OFAs)) containing rare-earth dopants, which are commercially available. The black box approach is used in this document. The black box approach is adopted in order to give product specifications which are independent of OA implementation details. For reliability qualification purposes, some information about the internal components is needed; these internal parts are themselves treated as black boxes. This document gives requirements for the evaluation of OA reliability by combining the reliability of such internal black boxes. The object of this document is to specify the minimum list of reliability qualification tests, requirements on failure criteria during testing and on reliability predictions, and give the relevant normative references to establish a standard method for the assessment of the reliability of OFA devices and sub-systems in order to minimize risks and to promote product development and reliability qualification. This second edition cancels and replaces the first edition published in 2002. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) removal of the contents on the relating quality management system from scope, terms and definitions, and the reliability requirements;
b) moving fit-rate calculation to Annex B (informative);
c) change of requirements for shock test;
d) amendment of abbreviations related to changes a) and b).
The contents of the corrigendum of May 2019 have been included in this copy.
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IEC 61291-5-2: 2026: Amendment 1
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IEC 61300-3-14:2025 provides a method to measure the error and repeatability of the attenuation value settings of a variable optical attenuator (VOA). There are two control technologies for VOAs: manually controlled and electrically controlled. This document covers both VOA control technologies and also both single-mode fibres and multimode fibres VOAs. For electrically controlled VOAs, the hysteresis characteristics of attenuation are sometimes important. The hysteresis characteristics can be measured as stated in Annex B. This fourth edition cancels and replaces the third edition published in 2014.
This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of IEC 61315, Calibration of fibre-optic power meters as normative reference;
b) addition of Clause 3 containing terms, definitions and abbreviated terms;
c) addition of notes for permission of repeatability definition with 2σ;
d) correction of error in Figure 1 a) and Figure 1 b);
e) addition of a clear statement on EF launch condition requirement for MM source;
f) change of “Detector” to “Power meter”;
g) combination of Clause 7 and Clause 8 into a new Clause 8 titled “Details to be specified and reported”;
h) addition of uncertainty considerations in Clause 7;
i) correction of error in Formula (B.3).
- Standard17 pagesEnglish languagee-Library read for1 day
- Amendment5 pagesEnglish languagee-Library read for1 day
IEC 60794-1-131:2026 describes the test procedures used to establish uniform requirements for microduct used to install optical fibre cables by blowing technique for the mechanical property - microduct inner clearance test. This document applies to microduct for use in optical fibre cable installation by blowing. NOTE Throughout the document, the wording “optical cable” can also include optical fibre units, microduct fibre units, etc. This first edition cancels and replaces Method E31 of the first edition of IEC 60794-1-21 published in 2015, Amendment 1:2020. This edition constitutes a technical revision. edition includes the significant technical changes with respect to IEC 60794‑1‑21:2015/AMD1:2020: a) Specification of Method E31.
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IEC 61757-8-1:2025 defines the terminology, structure, and measurement methods of optical pressure sensors for gases or liquids based on a diaphragm in combination with fibre Bragg gratings (FBGs) as the sensing element. This document also specifies the most important features and characteristics of these fibre optic pressure sensors and defines procedures for measuring these features and characteristics.
- Standard28 pagesEnglish languagee-Library read for1 day
IEC 61300-3-50:2025 describes the procedure to measure the crosstalk of optical signals between the ports of a multiport M x N (M input ports and N output ports) fibre optic spatial switch. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) revising structure of the document.
- Standard15 pagesEnglish languagee-Library read for1 day
IEC 61757-1-4:2025 defines the terminology, structure, and measurement methods of distributed fibre optic sensors for absolute strain measurements based on spectral correlation analysis of Rayleigh backscattering signatures in single-mode fibres, where the fibre is the distributed strain measurement element in a measurement range from about 10 m to tens of km. This document also applies to hybrid sensor systems that combine the advantages of Brillouin and Rayleigh backscattering effects to obtain optimal measurement quality. This document also specifies the most important features and performance parameters of these distributed fibre optic strain sensors defines procedures for measuring these features and parameters. This part of IEC 61757 does not apply to point measurements or to dynamic strain measurements. Distributed strain measurements using Brillouin scattering in single-mode fibres are covered in IEC 61757-1-2. The most relevant applications of this strain measurement technique are listed in Annex A, while Annex B provides a short description of the underlying measurement principle.
- Standard31 pagesEnglish languagee-Library read for1 day
- Corrigendum1 pageEnglish and French languagee-Library read for1 day
IEC 61300-3-14:2025 provides a method to measure the error and repeatability of the attenuation value settings of a variable optical attenuator (VOA). There are two control technologies for VOAs: manually controlled and electrically controlled. This document covers both VOA control technologies and also both single-mode fibres and multimode fibres VOAs. For electrically controlled VOAs, the hysteresis characteristics of attenuation are sometimes important. The hysteresis characteristics can be measured as stated in Annex B. This fourth edition cancels and replaces the third edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of IEC 61315, Calibration of fibre-optic power meters as normative reference; b) addition of Clause 3 containing terms, definitions and abbreviated terms; c) addition of notes for permission of repeatability definition with 2σ; d) correction of error in Figure 1 a) and Figure 1 b); e) addition of a clear statement on EF launch condition requirement for MM source; f) change of “Detector” to “Power meter”; g) combination of Clause 7 and Clause 8 into a new Clause 8 titled “Details to be specified and reported”; h) addition of uncertainty considerations in Clause 7; i) correction of error in Formula (B.3).
- Standard17 pagesEnglish languagee-Library read for1 day
- Amendment5 pagesEnglish languagee-Library read for1 day
IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOAs), and planar optical waveguides (POWAs). This document does not apply to polarization-maintaining optical amplifiers. This document defines uniform requirements for accurate and reliable measurements, by means of the electrical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1, Clause 3:
a) nominal output signal power;
b) gain;
c) reverse gain;
d) maximum gain;
e) polarization-dependent gain.
In addition, this test method provides a means for measuring the following parameters:
- maximum gain wavelength;
- gain wavelength band.
This document specifically covers single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies.
NOTE 1 The applicability of the test methods described in this document to distributed Raman amplifiers is for further study.
NOTE 2 A test method for polarization-maintaining optical amplifiers is for further study.
This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of information on the applicability of this document to the scope;
b) harmonization of the scope with the IEC 61290-1 series;
c) addition of safety recommendations to Clause 4 and Clause 5;
d) correction of an error in Clause 7, item e);
e) replacement of the term "wavelength measurement accuracy" with "wavelength accuracy".
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- Amendment5 pagesEnglish languagee-Library read for1 day
IEC 61757-8-1:2025 defines the terminology, structure, and measurement methods of optical pressure sensors for gases or liquids based on a diaphragm in combination with fibre Bragg gratings (FBGs) as the sensing element. This document also specifies the most important features and characteristics of these fibre optic pressure sensors and defines procedures for measuring these features and characteristics.
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IEC 62343:2023 applies to all commercially available optical dynamic modules and devices. It describes the products covered by the IEC 62343 series, defines terminology, fundamental considerations and basic approaches. The object of this document is to:
- establish uniform requirements for operation, reliability and environmental properties of dynamic modules (DMs) to be implemented in the appropriate DM standard, and
- provide assistance to the purchaser in the selection of consistently high-quality DM products for their particular applications, as well as in the consultation of the appropriate specific DM standard(s).
This document covers performance templates, performance standards, reliability qualification requirements, hardware and software interfaces and related testing methods. Since a dynamic module integrates an optical module/device, printed wiring board, and software/firmware, the standards developed in the series will mimic appropriate existing standards. On the other hand, since "dynamic module" is a relatively new product category, the dynamic module standards series will not be bound by the existing practices where requirements differ.The safety standards as related to dynamic modules are mostly optical power considerations, which is covered by the IEC 60825 series (see Clause 6). This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- addition of terms and definitions for optical multicast switches (3.8);
- revision of Clause 4, listing the requirements for standards in the IEC 62343 series;
- addition of Clause 6 (Safety requirements).
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IEC 62496-4-3:2026 defines the standard interface dimensions for a terminated waveguide optical circuit board (OCB) assembly (referred to simply as "assembly") with a single-row thirty-two-channel polymer MT(PMT) connector, such a PMT being intermateable with the rectangular ferrule of a single-row type MPO 16 connector.
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IEC 62343: 2026 Amendment 1
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IEC 60794-1-129:2025 applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. The document defines test procedures used in establishing uniform requirements for mechanical performance-straight midspan access to optical elements. Throughout this document, the wording "optical cable" also includes optical fibre units, microduct fibre units, etc.
NOTE See IEC 60794‑1‑2 for a reference guide to test methods of all types and for general requirements and definitions.
This edition includes the following significant technical changes with respect to IEC 60794‑1‑21:2015 and IEC 60794-1-21:2015/AMD 1:2020:
a) this document cancels and replaces method E29 of IEC 60794-1-21:2015 and IEC 60794‑1‑21:2015/AMD 1:2020;
b) addition of the description for applicable cable types;
c) update of Figure 2a), Figure 2b) and Figure 3;
d) addition of the displacement measure description;
e) addition of the details to be reported.
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IEC 60794-1-107:2025 applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. This document defines test procedures used in establishing uniform requirements for torsion performance. Refer to IEC 60794-1-2 for a reference guide to test methods and for general requirements and definitions.
NOTE Throughout this document, the wording "optical cable" also includes optical fibre units, microduct fibre units, etc.
This first edition partially cancels and replaces IEC 60794-1-21:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60794-1-21:2015:
a) Update of the typical test length according to the different types of cables;
b) Update of Figure 2 by loading weights to cable gripping fixture.
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IEC 60794-1-207:2025 describes test procedures to be used in establishing uniform requirements for optical fibre cables for the environmental property: performance degradation when exposed to nuclear radiation. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Method F7A evaluates performance degradation of optical fibre cable in environmental background radiation; Method F7B evaluates performance degradation of optical fibre cable in adverse nuclear environments.
NOTE Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc.
This first edition cancels and replaces the method F7 of the second edition of IEC 60794-1-22 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) detailed content of sample, apparatus, procedure, requirements and details of the method to be specified and reported are added.
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IEC TR 62316:2026 which is a Technical report, provides guidance on the interpretation of backscattering traces, as obtained by traditional optical time domain reflectometers (OTDRs) for single-mode fibres. This document does not cover Polarization OTDRs. Also, backscattered power effects are discussed in case of unidirectional trace. Full description of the test measurement procedure can be found in Annex C of IEC 60793‑1‑40:2024. This fourth edition cancels and replaces the third edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) update of the fibre types;
b) addition of information as regards attenuation uniformity.
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IEC 60794-1-131:2026 describes the test procedures used to establish uniform requirements for microduct used to install optical fibre cables by blowing technique for the mechanical property - microduct inner clearance test. This document applies to microduct for use in optical fibre cable installation by blowing.
NOTE Throughout the document, the wording “optical cable” can also include optical fibre units, microduct fibre units, etc.
This first edition cancels and replaces Method E31 of the first edition of IEC 60794-1-21 published in 2015, Amendment 1:2020. This edition constitutes a technical revision. edition includes the significant technical changes with respect to IEC 60794‑1‑21:2015/AMD1:2020:
a) Specification of Method E31.
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This document specifies a method of determining the attenuation variation of an optical cable during mechanical bending under load at the maximum and minimum operating temperatures.
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IEC 60794-1-207:2025 describes test procedures to be used in establishing uniform requirements for optical fibre cables for the environmental property: performance degradation when exposed to nuclear radiation. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. Method F7A evaluates performance degradation of optical fibre cable in environmental background radiation; Method F7B evaluates performance degradation of optical fibre cable in adverse nuclear environments. NOTE Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. This first edition cancels and replaces the method F7 of the second edition of IEC 60794-1-22 published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) detailed content of sample, apparatus, procedure, requirements and details of the method to be specified and reported are added.
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IEC 60794-1-129:2025 applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. The document defines test procedures used in establishing uniform requirements for mechanical performance-straight midspan access to optical elements. Throughout this document, the wording "optical cable" also includes optical fibre units, microduct fibre units, etc. NOTE See IEC 60794‑1‑2 for a reference guide to test methods of all types and for general requirements and definitions. This edition includes the following significant technical changes with respect to IEC 60794‑1‑21:2015 and IEC 60794-1-21:2015/AMD 1:2020: a) this document cancels and replaces method E29 of IEC 60794-1-21:2015 and IEC 60794‑1‑21:2015/AMD 1:2020; b) addition of the description for applicable cable types; c) update of Figure 2a), Figure 2b) and Figure 3; d) addition of the displacement measure description; e) addition of the details to be reported.
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IEC 60794-1-107:2025 applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. This document defines test procedures used in establishing uniform requirements for torsion performance. Refer to IEC 60794-1-2 for a reference guide to test methods and for general requirements and definitions. NOTE Throughout this document, the wording "optical cable" also includes optical fibre units, microduct fibre units, etc. This first edition partially cancels and replaces IEC 60794-1-21:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60794-1-21:2015: a) Update of the typical test length according to the different types of cables; b) Update of Figure 2 by loading weights to cable gripping fixture.
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IEC 61757-1-4:2025 defines the terminology, structure, and measurement methods of distributed fibre optic sensors for absolute strain measurements based on spectral correlation analysis of Rayleigh backscattering signatures in single-mode fibres, where the fibre is the distributed strain measurement element in a measurement range from about 10 m to tens of km. This document also applies to hybrid sensor systems that combine the advantages of Brillouin and Rayleigh backscattering effects to obtain optimal measurement quality. This document also specifies the most important features and performance parameters of these distributed fibre optic strain sensors defines procedures for measuring these features and parameters. This part of IEC 61757 does not apply to point measurements or to dynamic strain measurements. Distributed strain measurements using Brillouin scattering in single-mode fibres are covered in IEC 61757-1-2. The most relevant applications of this strain measurement technique are listed in Annex A, while Annex B provides a short description of the underlying measurement principle.
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IEC 61300-3-50:2025 describes the procedure to measure the crosstalk of optical signals between the ports of a multiport M x N (M input ports and N output ports) fibre optic spatial switch. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) revising structure of the document.
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IEC 61300-3-7: 2025 Amendment 1
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