IEC 62153-4-7:2015/AMD1:2018
(Amendment)Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance ZT and screening attenuation aS or coupling attenuation aC of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
Amendement 1 - Méthodes d'essai des câbles métalliques de communication - Partie 4-7: Compatibilité électromagnétique (CEM) - Méthode d'essai pour mesurer l'impédance de transfert Z<sub>T</sub> et l'affaiblissement d'écrantage a<sub>S</sub> ou l'affaiblissement de couplage a<sub>C</sub> des connecteurs et des cordons jusqu’à 3 GHZ et au-dessus - Méthode triaxiale en tubes concentriques
General Information
- Status
- Published
- Publication Date
- 08-May-2018
- Technical Committee
- TC 46 - Cables, wires, waveguides, RF connectors, RF and microwave passive components and accessories
- Drafting Committee
- WG 5 - TC 46/WG 5
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 23-Jul-2021
- Completion Date
- 26-Oct-2025
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC 62153-4-7:2015/AMD1:2018 is an important amendment to the international standard that specifies metallic communication cable test methods focused on electromagnetic compatibility (EMC). This part 4-7 standard defines the test method for measuring transfer impedance (ZT), screening attenuation (aS), and coupling attenuation (aC) of connectors and assemblies at frequencies up to and above 3 GHz using the triaxial tube in tube method. Developed by IEC Technical Committee 46, it provides standardized procedures to reliably evaluate the EMC performance of communication connectors and cable assemblies.
Key Topics
Transfer Impedance (ZT) Measurement: The standard outlines the method to quantify transfer impedance, which indicates the cable or connector's ability to block unwanted electromagnetic interference (EMI) currents from penetrating its shielding.
Screening Attenuation (aS) and Coupling Attenuation (aC): These parameters measure the effectiveness of shielding by determining how well connectors and cable assemblies attenuate electromagnetic signals, ensuring minimal EMI leakage or coupling.
Triaxial Tube In Tube Test Setup: A sophisticated test setup where the device under test (DUT) is enclosed within concentric conductive tubes to create an RF-tight environment for accurate high-frequency EMC measurements.
Direct Connector Measurement: This amendment introduces procedures to measure screening effectiveness directly on connectors without connecting cables, focusing on the EMC performance of the interface of mated connectors.
Test Setup Details: Specifications regarding the RF-tight connections, screwing torque, matching resistors, and proper assembly of the screening caps and tubes emphasize the importance of precise mechanical assembly to avoid signal leakages and ensure valid results.
Multi-Conductor Cable Testing: Guidelines for preparing samples and selecting inner conductor combinations to match internal impedance for reliable tests when evaluating multi-core cables.
Applications
Ensures high EMC performance and compliance of metallic communication connectors and cable assemblies used in telecommunications, data transmission, and industrial networks.
Provides manufacturers and testing laboratories with standardized methods to verify shielding effectiveness, essential for preventing electromagnetic interference in sensitive electronic environments.
Supports the design and certification of high-frequency connectors and assemblies operating above 3 GHz, which are increasingly prevalent in modern communication systems.
Assists in quality control and product development by offering precise and replicable test setups to monitor shielding parameters and optimize connector design.
Facilitates compliance with EMC requirements for military, aerospace, automotive, and consumer electronics industries where minimizing EMI is critical.
Related Standards
IEC 62153 Series: Covers various test methods for metallic communication cables regarding electrical, mechanical, and environmental characteristics.
VG 95214-12 and VG 95214-13: German standards detailing measuring methods for transfer impedance and screening attenuation for screened components and conductive gaskets using the triaxial method.
VG 95319-2: Defines generic specifications for electrical connectors and plug-and-socket devices.
VG 95377-15: Specifies measuring devices and equipment related to electromagnetic compatibility, including auxiliary measuring devices.
CISPR Standards: While not directly referenced, CISPR standards commonly complement tests related to electromagnetic compatibility of devices and assemblies.
This amendment to IEC 62153-4-7 enhances the standardized approach to EMC testing of connectors and assemblies, particularly at microwave frequencies. By implementing these test methods, organizations can ensure that their metallic communication cables and connectors provide robust shielding performance, mitigating electromagnetic interference in today's high-speed communication infrastructure.
IEC 62153-4-7:2015/AMD1:2018 - Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
Frequently Asked Questions
IEC 62153-4-7:2015/AMD1:2018 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method". This standard covers: Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
Amendment 1 - Metallic communication cable test methods - Part 4-7: Electromagnetic compatibility (EMC) - Test method for measuring of transfer impedance Z<sub>T</sub> and screening attenuation a<sub>S</sub> or coupling attenuation a<sub>C</sub> of connectors and assemblies up to and above 3 GHz - Triaxial tube in tube method
IEC 62153-4-7:2015/AMD1:2018 is classified under the following ICS (International Classification for Standards) categories: 33.100.10 - Emission; 33.120.10 - Coaxial cables. Waveguides. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 62153-4-7:2015/AMD1:2018 has the following relationships with other standards: It is inter standard links to IEC 62153-4-7:2015, IEC 62153-4-7:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
IEC 62153-4-7:2015/AMD1:2018 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)
IEC 62153-4-7 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 1
AM ENDEMENT 1
Metallic communication cable test methods –
Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring of
transfer impedance Z and screening attenuation a or coupling attenuation a
T s C
of connectors and assemblies up to and above 3 GHz – Triaxial tube in tube
method
Méthodes d'essai des câbles métalliques de communication –
Partie 4-7: Compatibilité électromagnétique (CEM) – Méthode d'essai pour
mesurer l'impédance de transfert Z et l'affaiblissement d'écrantage a ou
T s
l'affaiblissement de couplage a des connecteurs et des cordons jusqu'à 3 GHz
C
et au-dessus – Méthode triaxiale en tubes concentriques
IEC 62153-4-7:2015-12/AMD1:2018-05(en-fr)
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IEC 62153-4-7 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
A MENDMENT 1
AM ENDEMENT 1
Metallic communication cable test methods –
Part 4-7: Electromagnetic compatibility (EMC) – Test method for measuring of
transfer impedance Z and screening attenuation a or coupling attenuation a
T s C
of connectors and assemblies up to and above 3 GHz – Triaxial tube in tube
method
Méthodes d'essai des câbles métalliques de communication –
Partie 4-7: Compatibilité électromagnétique (CEM) – Méthode d'essai pour
mesurer l'impédance de transfert Z et l'affaiblissement d'écrantage a ou
T s
l'affaiblissement de couplage a des connecteurs et des cordons jusqu'à 3 GHz
C
et au-dessus – Méthode triaxiale en tubes concentriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-5599-5
– 2 – IEC 62153-4-7:2015/AMD1:2018
© IEC 2018
FOREWORD
This amendment has been prepared by IEC technical committee 46: Cables, wires,
waveguides, RF connectors, RF and microwave passive components and accessories.
The text of this amendment is based on the following documents:
FDIS Report on voting
46/679/FDIS 46/682/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
_____________
Add, after Annex D, the following new Annex E:
© IEC 2018
Annex E
(informative)
Direct measurement of screening effectiveness of connectors
E.1 General
IEC 62153-4-7 describes the measurement of transfer impedance and screening or coupling
attenuation of connectors and cable assemblies with the tube in tube procedure. According to
IEC 62153-4-7, connectors usually are measured with a short piece of connecting cable, see
for example Figure 2.
In different cases it may be required to measure the screening effectiveness direct on the
connector or without connecting cable, e.g. to evaluate the EMC of the interface of the mated
connectors. The following describes the test set-up for direct connector measurement.
E.2 Test set-up
The test set-up and measurements are in principle the same than in Clauses 8 to 10 of this
document.
Contrary to th
...




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