IEC 62153-4-9:2018
(Main)Metallic communication cable test methods - Part 4 - 9: Electromagnetic compatibility (EMC) - Coupling attenuation of screened balanced cables, triaxial method
Metallic communication cable test methods - Part 4 - 9: Electromagnetic compatibility (EMC) - Coupling attenuation of screened balanced cables, triaxial method
IEC 62153-4-9:2018 is also available as IEC 62153-4-9:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62153-4-9:2018 applies to metallic communication cables. It specifies a test method for determining the coupling attenuation aC of screened balanced cables. Due to the concentric outer tube, measurements are independent of irregularities on the circumference and external electromagnetic fields. A wide dynamic and frequency range can be applied to test even super screened cables with normal instrumentation from low frequencies up to the limit of defined transversal waves in the outer circuit at approximately 4 GHz. However, when using a balun, the upper frequency is limited by the properties of the balun. Measurements can be performed with standard tube procedure (respectively with standard test head) according to IEC 62153-4-4 or with open tube (open test head) procedure.
The procedure described herein to measure the coupling attenuation aC is based on the procedure to measure the screening attenuation aS according to IEC 62153-4-4. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
– two test procedures, open head and standard head procedure;
– measuring with balun or with multiport respectively mixed mode VNA;
– extension of frequency range up to and above 2 GHz.
Méthodes d’essais des câbles métalliques de communication - Partie 4 - 9: Compatibilité électromagnétique (CEM) - Affaiblissement de couplage des câbles symétriques écrantés, méthode triaxiale
IEC 62153-4-9:2018 est disponible sous forme de IEC 62153-4-9:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 62153-4-9:2018 s'applique aux câbles métalliques de communication. Elle spécifie une méthode d'essai pour la détermination de l'affaiblissement de couplage, aC, de câbles symétriques écrantés. Grâce au tube concentrique extérieur, les mesures sont indépendantes des irrégularités de la circonférence et des champs électromagnétiques externes. Une large plage dynamique de fréquences peut être appliquée pour soumettre aux essais des câbles même fortement écrantés avec des instruments normaux depuis les basses fréquences jusqu’à la limite des ondes transversales définies dans le circuit externe à environ 4 GHz. Toutefois, lorsque des symétriseurs sont utilisés, la fréquence supérieure est limitée par les propriétés des symétriseurs. Des mesures peuvent être réalisées en suivant la procédure à tube normalisé (tête normalisée) selon l'IEC 62153-4-4 ou la procédure à tube ouvert (tête ouverte). La procédure de mesure de l'affaiblissement de couplage, aC, décrite ici est fondée sur la procédure de mesure de l'affaiblissement d'écran, aS, de IEC 62153-4-4. Cette deuxième édition annule et remplace la première édition, parue en 2008. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
– deux procédures d'essai: à tête ouverte et à tête normalisée;
– mesure avec un symétriseur ou avec un analyseur de réseau vectoriel en mode mixte ou multiport;
– extension de la plage de fréquences jusqu'à 2 GHz et au-delà.
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IEC 62153-4-9 ®
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Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of
screened balanced cables, triaxial method
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IEC 62153-4-9 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
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Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of
screened balanced cables, triaxial method
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-5776-0
– 2 – IEC 62153-4-9:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
4 Principle of the measuring method . 8
4.1 General . 8
4.2 Procedure A: measuring with standard tube (standard head) . 10
4.3 Procedure B: measuring with open head . 10
5 Theorical background Screening parameters . 11
5.1 General . 11
5.2 Transfer impedance . 11
5.3 Screening attenuation . 12
5.4 Unbalanced attenuation a . 13
u
5.5 Coupling attenuation a . 14
c
6 Measurement . 15
6.1 General . 15
6.2 Equipment . 15
6.3 Balun requirements . 16
6.4 TP-connecting unit requirements . 17
6.5 Sample preparation . 17
6.6 Procedure . 18
6.7 Test length . 18
6.8 Measurement precautions . 19
7 Expression of results . 19
7.1 Procedure A: measuring with a standard head . 19
7.2 Procedure B: measuring with an open head . 19
8 Test report . 20
9 Requirements . 21
10 Plots of coupling attenuation versus frequency (typical results) . 21
Annex A (normative) Insertion loss of absorber with triaxial set-up . 25
Annex B (informative) Physical background . 27
B.1 Unbalance attenuation a . 27
u
B.2 Screening attenuation a . 28
s
B.3 Coupling attenuation a . 28
c
Annex C (informative) Mixed mode parameters . 30
C.1 Definition of mixed mode S-Parameters . 30
C.2 Reference impedance of VNA . 32
Bibliography . 33
Figure – Principle test set-up .
Figure – Set-up to measure the coupling attenuation .
Figure – Twinax 105 log .
Figure – Twinax 105 linear .
Figure – FTP log .
Figure – FTP linear .
Figure 1 – Coupling attenuation, principle test set-up with balun and standard tube . 9
Figure 2 – Coupling attenuation, principle test set-up with balun and open head . 10
Figure 3 – Coupling attenuation, principle set-up with multiport VNA and standard head . 10
Figure 4 – Coupling attenuation, principle set-up with multiport VNA and open head. 11
Figure 5 – Definition of transfer impedance . 12
Figure 6 – Termination of the cable under test with balun feeding . 18
Figure 7 – Test set-up to measure a . 20
tube
Figure 8 – Coupling attenuation Twinax 105, open head procedure. 23
Figure 9 – Coupling attenuation Cat 7a, standard head procedure . 23
Figure 10 – Coupling attenuation Cat 8.2, open head procedure . 24
Figure A.1 – Insertion loss of absorber with triaxial set-up . 25
Figure A.2 – Insertion loss of absorber with triaxial set-up . 25
Figure C.1 – Common two-port network . 30
Figure C.2 – Common four port network . 30
Figure C.3 – Physical and logical ports of VNA . 31
Figure C.4 – Nomenclature of mixed mode S-Parameters . 31
Figure C.5 – Measurement configuration, single ended response . 32
Figure C.6 – Measurement configuration, differential mode response . 32
Table 1 – Balun performance characteristics (1 MHz to 1 GHz) . 16
Table 2 – TP-connecting unit performance characteristics (1 MHz to 2 GHz) . 17
– 4 – IEC 62153-4-9:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-9: Electromagnetic compatibility (EMC) –
Coupling attenuation of screened balanced cables, triaxial method
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
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...
IEC 62153-4-9 ®
Edition 2.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
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Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of
screened balanced cables, triaxial method
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
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latest edition, a corrigendum or an amendment might have been published.
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IEC 62153-4-9 ®
Edition 2.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of
screened balanced cables, triaxial method
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-8633-3
IEC 62153-4-9 ®
Edition 2.1 2020-07
REDLINE VERSION
colour
inside
Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of
screened balanced cables, triaxial method
– 2 – IEC 62153-4-9:2018+AMD1:2020 CSV
© IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION to Amendment 1 . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols. 7
4 Principle of the measuring method . 9
4.1 General . 9
4.2 Procedure A: measuring with standard tube (standard head) . 10
4.3 Procedure B: measuring with open head . 11
5 Screening parameters . 12
5.1 General . 12
5.2 Transfer impedance . 12
5.3 Screening attenuation . 12
5.4 Unbalance attenuation . 13
5.5 Coupling attenuation . 13
6 Measurement . 14
6.1 General . 14
6.2 Equipment . 14
6.3 Balun requirements . 14
6.4 TP-connecting unit requirements . 15
6.5 Sample preparation . 15
6.6 Procedure . 16
6.7 Test length . 16
6.8 Measurement precautions . 17
7 Expression of results . 17
7.1 Procedure A: measuring with a standard head . 17
7.2 Procedure B: measuring with an open head . 17
8 Test report . 18
9 Requirements . 18
10 Plots of coupling attenuation versus frequency (typical results) . 19
Annex A (normative) Insertion loss of absorber with triaxial set-up . 21
Annex B (informative) Physical background . 23
B.1 Unbalance attenuation a . 23
u
B.2 Screening attenuation a . 24
s
B.3 Coupling attenuation a . 24
c
Annex C (informative) Mixed mode parameters . 26
C.1 Definition of mixed mode S-Parameters . 26
C.2 Reference impedance of VNA . 28
Annex D (normative) Measuring the screening effectiveness of unscreened single or
multiple balanced pairs . 29
D.1 General . 29
D.2 Background. 29
D.3 Triaxial set-up for unscreened balanced pairs . 29
D.4 Unscreened single pairs . 30
© IEC 2020
D.5 Screening- and coupling attenuation measurement of multiple unscreened
balanced pairs . 31
D.6 Measurement . 32
D.7 Expression of test results . 32
D.8 Low frequency coupling attenuation . 32
D.9 Set-up verification and measurement uncertainties . 33
Bibliography . 35
Figure 1 – Coupling attenuation, principle test set-up with balun and standard tube . 9
Figure 2 – Coupling attenuation, principle test set-up with balun and open head . 10
Figure 3 – Coupling attenuation, principle set-up with multiport VNA and standard head . 11
Figure 4 – Coupling attenuation, principle set-up with multiport VNA and open head. 11
Figure 5 – Definition of transfer impedance . 12
Figure 6 – Termination of the cable under test with balun feeding . 16
Figure 7 – Test set-up to measure a . 18
tube
Figure 8 – Coupling attenuation Twinax 105, open head procedure. 19
Figure 9 – Coupling attenuation Cat 7a, standard head procedure . 19
Figure 10 – Coupling attenuation Cat 8.2, open head procedure . 20
Figure A.1 – Insertion loss of absorber with triaxial set-up . 21
Figure A.2 – Insertion loss of absorber with triaxial set-up . 21
Figure C.1 – Common two-port network . 26
Figure C.2 – Common four port network . 26
Figure C.3 – Physical and logical ports of VNA . 27
Figure C.4 – Nomenclature of mixed mode S-Parameters . 27
Figure C.5 – Measurement configuration, single ended response . 28
Figure C.6 – Measurement configuration, differential mode response . 28
Figure D.1 – Basic triaxial tube procedure according to IEC 62153-4-3 / IEC 62153-4-4 . 29
Figure D.2 – Screening effectiveness of unscreened balanced pairs, principle set-up . 30
Figure D.3 – Configuration for near end coupling measurement of an unscreened
single pair, principle set-up . 31
Figure D.4 – Far end screening attenuation and coupling attenuation (S and
sc21
S ) of an unscreened balanced pair, principle set-up . 31
sd21
Figure D.5 – Basic configuration of screening attenuation and coupling attenuation
test of multiple unscreened balanced pairs . 32
Figure D.6 – Low frequency coupling attenuation a of a single screened and
C,lf
unscreened balanced pair, 3 m . 33
Figure D.7 – Reflected mode conversion parameter S with a TP-connecting unit
cd11
having an open loop. 34
Table 1 – Balun performance characteristics (1 MHz to 1 GHz) . 15
Table 2 – TP-connecting unit performance characteristics (1 MHz to 2 GHz) . 15
– 4 – IEC 62153-4-9:2018+AMD1:2020 CSV
© IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-9: Electromagnetic compatibility (EMC) –
Coupling attenuation of screened balanced cables, triaxial method
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 Internati
...
IEC 62153-4-9 ®
Edition 2.2 2024-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) related test method for measuring
coupling attenuation of screened balanced cables – Triaxial method
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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International Standards for all electrical, electronic and related technologies.
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Edition 2.2 2024-06
CONSOLIDATED VERSION
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STANDARD
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Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) related test method for measuring
coupling attenuation of screened balanced cables – Triaxial method
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-9242-6
REDLINE VERSION – 2 – IEC 62153-4-9:2018+AMD1:2020
+AMD2:2024 CSV © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION to Amendment 1 . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and symbols. 8
4 Principle of the measuring method . 10
4.1 General . 10
4.2 Procedure A: measuring with standard tube (standard head) . 11
4.3 Procedure B: measuring with open head . 12
5 Screening parameters . 13
5.1 General . 13
5.2 Transfer impedance . 13
5.3 Screening attenuation . 13
5.4 Unbalance attenuation . 14
5.5 Coupling attenuation . 14
6 Measurement . 15
6.1 General . 15
6.2 Equipment . 15
6.3 Balun requirements . 15
6.4 TP-connecting unit requirements . 16
6.5 Sample preparation . 16
6.6 Procedure . 17
6.7 Test length . 17
6.8 Measurement precautions . 18
7 Expression of results . 18
7.1 Procedure A: measuring with a standard head . 18
7.2 Procedure B: measuring with an open head . 18
8 Test report . 19
9 Requirements . 20
10 Plots of coupling attenuation versus frequency (typical results) . 20
Annex A (normative) Insertion loss of absorber with triaxial set-up . 22
Annex B (informative) Physical background . 24
B.1 Unbalance attenuation a . 24
u
B.2 Screening attenuation a . 25
s
B.3 Coupling attenuation a . 25
c
Annex C (informative) Mixed mode parameters . 27
C.1 Definition of mixed mode S-Parameters . 27
C.2 Reference impedance of VNA . 29
Annex D (normative) Measuring the screening effectiveness of unscreened single or
multiple balanced pairs . 30
D.1 General . 30
D.2 Background. 30
D.3 Triaxial set-up for unscreened balanced pairs . 30
D.3.1 Principle . 30
D.3.2 Inner and outer system . 31
+AMD2:2024 CSV © IEC 2024
D.4 Unscreened single pairs . 31
D.4.1 Near-end coupling attenuation of a single unscreened balanced pair . 31
D.4.2 Far end screening attenuation and coupling attenuation of single
unscreened balanced pairs . 32
D.5 Screening- and coupling attenuation measurement of multiple unscreened
balanced pairs . 32
D.6 Measurement . 33
D.7 Expression of test results . 33
D.8 Low frequency coupling attenuation . 33
D.9 Set-up verification and measurement uncertainties . 34
Annex E (normative) Coupling attenuation expressed by mixed mode scattering
parameter and an envelope line . 36
E.1 General . 36
E.2 Coupling attenuation expressed by mixed mode scattering parameter . 36
E.3 Envelope line of coupling attenuation . 36
Bibliography . 38
Figure 1 – Coupling attenuation, principle test set-up with balun and standard tube . 10
Figure 2 – Coupling attenuation, principle test set-up with balun and open head . 11
Figure 3 – Coupling attenuation, principle set-up with multiport VNA and standard head . 12
Figure 4 – Coupling attenuation, principle set-up with multiport VNA and open head. 12
Figure 5 – Definition of transfer impedance . 13
Figure 6 – Termination of the cable under test with balun feeding . 17
Figure 7 – Test set-up to measure a . 19
tube
Figure 8 – Coupling attenuation Twinax 105, open head procedure. 20
Figure 9 – Coupling attenuation Cat 7a, standard head procedure . 21
Figure 10 – Coupling attenuation Cat 8.2, open head procedure . 21
Figure A.1 – Insertion loss of absorber with triaxial set-up . 22
Figure A.2 – Insertion loss of absorber with triaxial set-up . 22
Figure C.1 – Common two-port network . 27
Figure C.2 – Common four port network . 27
Figure C.3 – Physical and logical ports of VNA . 28
Figure C.4 – Nomenclature of mixed mode S-Parameters . 28
Figure C.5 – Measurement configuration, single ended response . 29
Figure C.6 – Measurement configuration, differential mode response . 29
Figure D.1 – Basic triaxial tube procedure according to IEC 62153-4-3 / IEC 62153-4-4 . 30
Figure D.2 – Screening effectiveness of unscreened balanced pairs, principle set-up . 31
Figure D.3 – Configuration for near end coupling measurement of an unscreened
single pair, principle set-up . 32
Figure D.4 – Far end screening attenuation and coupling attenuation (S and
sc21
S ) of an unscreened balanced pair, principle set-up . 32
sd21
Figure D.5 – Basic configuration of screening attenuation and coupling attenuation
test of multiple unscreened balanced pairs . 33
Figure D.6 – Low frequency coupling attenuation a of a single screened and
C,lf
unscreened balanced pair, 3 m . 34
Figure D.7 – Reflected mode conversion parameter S with a TP-connecting unit
cd11
having an open loop. 35
REDLINE VERSION – 4 – IEC 62153-4-9:2018+AMD1:2020
+AMD2:2024 CSV © IEC 2024
Figure E.1 – Example of coupling attenuation with envelope line . 37
Table 1 – Balun performance characteristics (1 MHz to 1 GHz) . 16
Table 2 – TP-connecting unit performance characteristics (1 MHz to 2 GHz) . 16
+AMD2:2024 CSV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-9: Electromagnetic compatibility (EMC) –
Coupling attenuation
...
IEC 62153-4-9 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of screened
balanced cables, triaxial method
Méthodes d’essais des câbles métalliques de communication –
Partie 4-9: Compatibilité électromagnétique (CEM) – Affaiblissement de couplage
des câbles symétriques écrantés, méthode triaxiale
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IEC 62153-4-9 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Metallic communication cable test methods –
Part 4-9: Electromagnetic compatibility (EMC) – Coupling attenuation of screened
balanced cables, triaxial method
Méthodes d’essais des câbles métalliques de communication –
Partie 4-9: Compatibilité électromagnétique (CEM) – Affaiblissement de couplage
des câbles symétriques écrantés, méthode triaxiale
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10; 33.120.10 ISBN 978-2-8322-5747-0
– 2 – IEC 62153-4-9:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
4 Principle of the measuring method . 8
4.1 General . 8
4.2 Procedure A: measuring with standard tube (standard head) . 9
4.3 Procedure B: measuring with open head . 10
5 Screening parameters . 11
5.1 General . 11
5.2 Transfer impedance . 11
5.3 Screening attenuation . 11
5.4 Unbalance attenuation . 12
5.5 Coupling attenuation . 12
6 Measurement . 13
6.1 General . 13
6.2 Equipment . 13
6.3 Balun requirements . 13
6.4 TP-connecting unit requirements . 14
6.5 Sample preparation . 14
6.6 Procedure . 15
6.7 Test length . 15
6.8 Measurement precautions . 16
7 Expression of results . 16
7.1 Procedure A: measuring with a standard head . 16
7.2 Procedure B: measuring with an open head . 16
8 Test report . 17
9 Requirements . 17
10 Plots of coupling attenuation versus frequency (typical results) . 18
Annex A (normative) Insertion loss of absorber with triaxial set-up . 20
Annex B (informative) Physical background . 22
B.1 Unbalance attenuation a . 22
u
B.2 Screening attenuation a . 23
s
B.3 Coupling attenuation a . 23
c
Annex C (informative) Mixed mode parameters . 25
C.1 Definition of mixed mode S-Parameters . 25
C.2 Reference impedance of VNA . 27
Bibliography . 28
Figure 1 – Coupling attenuation, principle test set-up with balun and standard tube . 8
Figure 2 – Coupling attenuation, principle test set-up with balun and open head . 9
Figure 3 – Coupling attenuation, principle set-up with multiport VNA and standard head . 10
Figure 4 – Coupling attenuation, principle set-up with multiport VNA and open head. 10
Figure 5 – Definition of transfer impedance . 11
Figure 6 – Termination of the cable under test with balun feeding . 15
Figure 7 – Test set-up to measure a . 17
tube
Figure 8 – Coupling attenuation Twinax 105, open head procedure. 18
Figure 9 – Coupling attenuation Cat 7a, standard head procedure . 18
Figure 10 – Coupling attenuation Cat 8.2, open head procedure . 19
Figure A.1 – Insertion loss of absorber with triaxial set-up . 20
Figure A.2 – Insertion loss of absorber with triaxial set-up . 20
Figure C.1 – Common two-port network . 25
Figure C.2 – Common four port network . 25
Figure C.3 – Physical and logical ports of VNA . 26
Figure C.4 – Nomenclature of mixed mode S-Parameters . 26
Figure C.5 – Measurement configuration, single ended response . 27
Figure C.6 – Measurement configuration, differential mode response . 27
Table 1 – Balun performance characteristics (1 MHz to 1 GHz) . 14
Table 2 – TP-connecting unit performance characteristics (1 MHz to 2 GHz) . 14
– 4 – IEC 62153-4-9:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METALLIC COMMUNICATION CABLE TEST METHODS –
Part 4-9: Electromagnetic compatibility (EMC) –
Coupling attenuation of screened balanced cables, triaxial method
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 Guid
...
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