Connectors for electrical and electronic equipment - Tests and measurements - Part 28-100: Signal integrity tests up to 2 000 MHz - Tests 28a to 28g (IEC 60512-28-100:2024)

IEC 60512-28-100:2024 specifies the test methods for signal integrity and transmission performance for connectors specified in respective parts of IEC 60603-7, IEC61076-1, IEC 61076-2, IEC 61076-3 and IEC 63171 series of standards for connecting hardware applications from 0,1 MHz up to 2 000 MHz, with reference to this document.
Note: This document is also suitable for testing signal integrity and transmission performance of connectors up to a lower value of maximum frequency; however, the test methodology specified in the detail specification for any given connector remains the reference conformance test for that connector.
The list of connector series of standards does not preclude referencing this document in other connector manufacturer’s specifications or published standards.
Test procedures provided herein are:
- insertion loss, test 28a;
- return loss, test 28b;
- near-end crosstalk (NEXT) test 28c;
- far-end crosstalk (FEXT), test 28d;
- transverse conversion loss (TCL), test 28f;
- transverse conversion transfer loss (TCTL), test 28g.
Other test procedures referenced herein are:
- shield transfer impedance (ZT), see IEC 60512‑26‑100, test 26e.
- coupling attenuation (aC), see IEC 62153-4-7 and IEC 62153‑4‑12.
- low frequency coupling attenuation (aCLF) see IEC 62153-4-7 and IEC 62153-4-15
This edition includes the following significant technical changes with respect to the previous edition:
-The frequency range has been modified to start at 0,1 MHz instead of 1 MHz, to include single-pair connectors.
-All tables and requirements have been revised down to 0,1 MHz, and partially improved to reduce the impact of the test fixture.
-Formulae to calculate the S-parameters from single-ended parameters have been added.
-A note was added for those parameters which are not applicable to single-pair connectors.

Steckverbinder für elektrische und elektronische Einrichtungen - Mess- und Prüfverfahren - Teil 28-100: Signalintegritätsprüfungen bis 2 000 MHz - Prüfungen 28a bis 28g (IEC 60512-28-100:2024)

Connecteurs pour équipements électriques et électroniques - Essais et mesures - Partie 28-100: Essais d'intégrité des signaux jusqu'à 2 000 MHz - Essais 28a à 28g (IEC 60512-28-100:2024)

L'IEC 60512-28-100:2024 spécifie les méthodes d’essai pour l’intégrité du signal et les performances de transmission pour les connecteurs spécifiés dans les parties respectives de l'IEC 60603-7, l'IEC 61076-1, l'IEC 61076-2, l'IEC 61076-3 et de la série de normes IEC 63171 pour connecter les applications matérielles de 0,1 MHz à 2 000 MHz, en référence au présent document.
NOTE Le présent document convient également pour soumettre à essai l’intégrité des signaux et les performances de transmission des connecteurs jusqu’à une valeur inférieure de fréquence maximale; toutefois, la méthodologie d’essai spécifiée dans la spécification particulière pour un connecteur donné reste l’essai de conformité de référence pour ce connecteur.
La liste de séries de normes concernant les connecteurs n’exclut pas le fait de faire référence au présent document dans d’autres normes publiées ou spécifications des fabricants de connecteurs.
Les procédures d’essai spécifiées ici sont les suivantes:
- perte d’insertion, essai 28a;
- affaiblissement de réflexion, essai 28b;
- paradiaphonie (NEXT), essai 28c;
- télédiaphonie (FEXT), essai 28d;
- perte de conversion transverse (TCL), essai 28f;
- perte de transfert de conversion transverse (TCTL), essai 28g.
Les autres procédures d’essai citées ici en référence sont:
- impédance de transfert, (ZT), voir l’IEC 60512‑26‑100, essai 26e;
- affaiblissement de couplage (aC), voir l’IEC 62153-4-7 et l’IEC 62153‑4‑12;
- affaiblissement de couplage basse fréquence (aCLF), voir l’IEC 62153-4-7 et l’IEC 62153-4-15.

Konektorji za električno in elektronsko opremo - Preskusi in meritve - 28-100. del: Preskusi signalne celovitosti do 2000 MHz - Preskusi od 28a do 28g (IEC 60512-28-100:2024)

Ta del standarda IEC 60512 določa preskusne metode za signalno celovitost in zmogljivost prenosa za konektorje, določene v zadevnih delih skupin standardov IEC 60603-7 [1], IEC 61076-1 [2], IEC 61076-2 [3], IEC 61076-3 [4] in IEC 63171 [5], za povezovanje strojne opreme od 0,1 MHz do 2000 MHz, s sklicevanjem na ta dokument.
OPOMBA: Ta dokument je primeren tudi za preskušanje signalne celovitosti in zmogljivosti prenosa konektorjev do nižje vrednosti največje frekvence, vendar je metodologija preskušanja, določena v podrobnih specifikacijah za kateri koli konektor, preskus referenčne skladnosti za zadevni konektor.
Seznam skupin standardov za konektorje ne izključuje sklicevanja na ta dokument v specifikacijah drugih proizvajalcev konektorjev ali objavljenih standardih.
Preskusni postopki, navedeni v tem dokumentu, so:
– dodano dušenje, preskus 28a;
– povratno dušenje, preskus 28b;
– bližnji presluh (NEXT), preskus 28c;
– daljni presluh (FEXT), preskus 28d;
– prečno dušenje pretvorbe (TCL), preskus 28f;
– prečno dušenje pretvorbe prenosa (TCTL), preskus 28g.
Drugi preskusni postopki, na katere se sklicuje ta dokument, so:
– impedanca prenosa (ZT), glej standard IEC 60512-26-100, preskus 26e;
– slabljenje stikov (aC), glej standarda IEC 62153-4-7 in IEC 62153- 4-12;
– nizkofrekvenčno slabljenje stikov (aCLF), glej standarda IEC 62153-4-7 in IEC 62153-4-15.

General Information

Status
Published
Public Enquiry End Date
30-Nov-2023
Publication Date
21-Nov-2024
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Nov-2024
Due Date
24-Jan-2025
Completion Date
22-Nov-2024

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SLOVENSKI STANDARD
01-januar-2025
Konektorji za električno in elektronsko opremo - Preskusi in meritve - 28-100. del:
Preskusi signalne celovitosti do 2000 MHz - Preskusi od 28a do 28g (IEC 60512-28-
100:2024)
Connectors for electrical and electronic equipment - Tests and measurements - Part 28-
100: Signal integrity tests up to 2 000 MHz - Tests 28a to 28g (IEC 60512-28-100:2024)
Steckverbinder für elektrische und elektronische Einrichtungen - Mess- und
Prüfverfahren - Teil 28-100: Signalintegritätsprüfungen bis 2 000 MHz - Prüfungen 28a
bis 28g (IEC 60512-28-100:2024)
Connecteurs pour équipements électriques et électroniques - Essais et mesures - Partie
28-100: Essais d'intégrité des signaux jusqu'à 2 000 MHz - Essais 28a à 28g (IEC 60512
-28-100:2024)
Ta slovenski standard je istoveten z: EN IEC 60512-28-100:2024
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60512-28-100

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2024
ICS 31.220.10 Supersedes EN IEC 60512-28-100:2019
English Version
Connectors for electrical and electronic equipment - Tests and
measurements - Part 28-100: Signal integrity tests up to 2 000
MHz - Tests 28a to 28g
(IEC 60512-28-100:2024)
Connecteurs pour équipements électriques et électroniques Steckverbinder für elektrische und elektronische
- Essais et mesures - Partie 28-100: Essais d'intégrité des Einrichtungen - Mess- und Prüfverfahren - Teil 28-100:
signaux jusqu'à 2 000 MHz - Essais 28a à 28g Signalintegritätsprüfungen bis 2 000 MHz - Prüfungen 28a
(IEC 60512-28-100:2024) bis 28g
(IEC 60512-28-100:2024)
This European Standard was approved by CENELEC on 2024-09-06. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60512-28-100:2024 E

European foreword
The text of document 48B/3109/FDIS, future edition 3 of IEC 60512-28-100, prepared by SC 48B
"Electrical connectors" of IEC/TC 48 "Electrical connectors and mechanical structures for electrical
and electronic equipment" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60512-28-100:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-11-30
document have to be withdrawn
This document supersedes EN IEC 60512-28-100:2019 and all of its amendments and corrigenda (if
any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60512-28-100:2024 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60603-7 NOTE Approved as EN IEC 60603-7
IEC 61076-1 NOTE Approved as EN 61076-1
IEC 61076-2 NOTE Approved as EN 61076-2
IEC 61076-3 NOTE Approved as EN 61076-3
IEC 63171 NOTE Approved as EN IEC 63171
IEC 60603-7-81 NOTE Approved as EN 60603-7-81
IEC 60603-7-82 NOTE Approved as EN 60603-7-82
IEC 61076-3-110 NOTE Approved as EN 61076-3-110
IEC 61076-3-104 NOTE Approved as EN 61076-3-104
IEC 61076-2-109 NOTE Approved as EN 61076-2-109
IEC 60603-7-2 NOTE Approved as EN 60603-7-2
IEC 60603-7-3 NOTE Approved as EN 60603-7-3
IEC 60603-7-4 NOTE Approved as EN 60603-7-4
IEC 60603-7-5 NOTE Approved as EN 60603-7-5
IEC 60603-7-41 NOTE Approved as EN 60603-7-41
IEC 60603-7-51 NOTE Approved as EN 60603-7-51
IEC 60603-7-7 NOTE Approved as EN 60603-7-7
IEC 60603-7-71 NOTE Approved as EN 60603-7-71
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-581 - International Electrotechnical Vocabulary - - -
Part 581: Electromechanical components
for electronic equipment
IEC 60512-1 - Connectors for electrical and electronic EN IEC 60512-1 -
equipment - Tests and measurements -
Part 1: Generic specification
IEC 60512-26-100 - Connectors for electronic equipment - EN 60512-26-100 -
Tests and measurements - Part 26-100:
Measurement setup, test and reference
arrangements and measurements for
connectors according to IEC 60603-7 -
Tests 26a to 26g
IEC 60512-27-100 - Connectors for electronic equipment - EN 60512-27-100 -
Tests and measurements - Part 27-100:
Signal integrity tests up to 500 MHz on
60603-7 series connectors - Tests 27a to
27g
IEC 60512-27-200 - Connectors for electrical and electronic EN IEC 60512-27-200 -
equipment - Tests and measurements -
Part 27-200: Additional specifications for
signal integrity tests up to 2 000 MHz on
IEC 60603-7 series connectors - Tests 27a
to 27g
IEC 60512-29-100 - Connectors for electronic equipment - EN 60512-29-100 -
Tests and measurements - Part 29-100:
Signal integrity tests up to 500 MHz on
M12 style connectors - Tests 29a to 29g
IEC 60603-7 - Connectors for electronic equipment - Part EN IEC 60603-7 -
7: Detail specification for 8-way,
unshielded, free and fixed connectors
IEC 61076-1 - Connectors for electronic equipment - EN 61076-1 -
Product requirements - Part 1: Generic
specification
IEC 61076-3-104 - Connectors for electrical and electronic EN 61076-3-104 -
equipment - Product requirements - Part 3-
104: Detail specification for 8-way,
shielded free and fixed connectors for data
transmissions with frequencies up to 2 000
MHz
IEC 61076-3-110 - Connectors for electrical and electronic EN 61076-3-110 -
equipment - Product requirements - Part 3-
110: Detail specification for free and fixed
connectors for data transmission with
frequencies up to 3 000 MHz
IEC 61156-1 - Multicore and symmetrical pair/quad - -
cables for digital communications - Part 1:
Generic specification
IEC 61169-15 - Radio-frequency connectors - Part 15: EN IEC 61169-15 -
Sectional specification - RF coaxial
connectors with inner diameter of outer
conductor 4,13 mm (0,163 in) with
threaded coupling - Characteristic
impedance 50 Ω (type SMA)
IEC 61169-16 - Radio-frequency connectors - Part 16: EN 61169-16 -
Sectional specification - RF coaxial
connectors with inner diameter of outer
conductor 7 mm (0,276 in) with screw
coupling - Characteristics impedance 50
ohms (75 ohms) (type N)
IEC 62153-4-6 - Metallic cables and other passive - -
components test methods - Part 4-6:
Electromagnetic compatibility (EMC) -
Surface transfer impedance - line injection
method
IEC 62153-4-7 - Metallic cables and other passive EN IEC 62153-4-7 -
components test methods - Part 4-7:
Electromagnetic compatibility (EMC) -Test
method for measuring of transfer
impedance Z and screening attenuation
T
aS or coupling attenuation aC of connectors
and assemblies - Triaxial tube in tube
method
IEC 62153-4-12 - Metallic communication cable test methods - -
- Part 4-12: Electromagnetic compatibility
(EMC) - Coupling attenuation or screening
attenuation of connecting hardware -
Absorbing clamp method
IEC 62153-4-15 - Metallic cables and other passive EN IEC 62153-4-15 -
components test methods - Part 4-15:
Electromagnetic compatibility (EMC) - Test
method for measuring transfer impedance
and screening attenuation - or coupling
attenuation with triaxial cell
IEC 63171 - Connectors for electrical and electronic EN IEC 63171 -
equipment - Shielded or unshielded free
and fixed connectors for balanced single-
pair data transmission with current-carrying
capacity - General requirements and tests
ISO/IEC 11801-1 - Information technology - Generic cabling - -
for customer premises - Part 1: General
requirements
IEC 60512-28-100 ®
Edition 3.0 2024-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electrical and electronic equipment – Tests and measurements –

Part 28-100: Signal integrity tests up to 2 000 MHz – Tests 28a to 28g

Connecteurs pour équipements électriques et électroniques – Essais

et mesures –
Partie 28-100: Essais d’intégrité des signaux jusqu’à 2 000 MHz – Essais 28a

à 28g
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.10 ISBN 978-2-8322-9504-5

– 2 – IEC 60512-28-100:2024 © IEC 2024

CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 10
3.1 Terms and definitions. 10
3.2 Abbreviated terms . 10
4 Overall test arrangement . 11
4.1 General . 11
4.2 Test instrumentation . 11
4.2.1 General . 11
4.2.2 Vector network analyser . 11
4.2.3 RF switching unit . 11
4.2.4 Reference loads and termination loads . 11
4.3 Measurement precautions . 12
4.4 Mixed mode S-parameter nomenclature . 12
4.5 Coaxial cables and interconnections for network analysers . 13
4.6 Characteristic for switching matrices . 14
4.7 Test fixture types . 14
4.8 Requirements for termination performance at calibration plane . 14
4.9 Reference loads for calibration . 14
4.10 Calibration . 15
4.10.1 General . 15
4.10.2 Calibration test interface . 16
4.10.3 Calibration at end of coaxial test cables . 16
4.11 Termination loads for termination of conductor pairs . 16
4.11.1 General . 16
4.11.2 Impedance matching resistor termination networks . 17
4.12 Termination of screens . 17
4.13 Test specimen and reference planes . 17
4.13.1 General . 17
4.13.2 Interconnections between the device under test (DUT) and the
calibration plane . 18
4.14 Overall test setup requirements . 19
5 Connector measurements up to 2 000 MHz . 20
5.1 General . 20
5.1.1 Determining pass and fail . 20
5.2 Insertion loss, test 28a . 20
5.2.1 Object . 20
5.2.2 Insertion loss . 20
5.2.3 Test method . 20
5.2.4 Test setup . 20
5.2.5 Procedure . 20
5.2.6 Test report . 21
5.2.7 Accuracy . 21
5.3 Return loss, test 28b . 22
5.3.1 Object . 22
5.3.2 Return loss . 22

IEC 60512-28-100:2024 © IEC 2024 – 3 –

5.3.3 Test method . 22
5.3.4 Test setup . 22
5.3.5 Procedure . 23
5.3.6 Test report . 23
5.3.7 Accuracy . 23
5.4 Near-end crosstalk (NEXT), test 28c . 23
5.4.1 Object . 23
5.4.2 NEXT. 23
5.4.3 Test method . 23
5.4.4 Test setup . 24
5.4.5 Procedure . 24
5.4.6 Test report . 25
5.4.7 Accuracy . 25
5.5 Far-end crosstalk (FEXT), test 28d . 25
5.5.1 Object . 25
5.5.2 FEXT . 25
5.5.3 Test method . 25
5.5.4 Test setup . 25
5.5.5 Procedure . 26
5.5.6 Test report . 26
5.5.7 Accuracy . 27
5.6 Transverse conversion loss (TCL), test 28f . 27
5.6.1 Object . 27
5.6.2 TCL . 27
5.6.3 Test method . 27
5.6.4 Test setup . 27
5.6.5 Procedure . 27
5.6.6 Test report . 28
5.6.7 Accuracy . 28
5.7 Transverse conversion transfer loss (TCTL), test 28g . 28
5.7.1 Object . 28
5.7.2 TCTL . 28
5.7.3 Test method . 28
5.7.4 Test setup . 28
5.7.5 Procedure . 28
5.7.6 Test report . 29
5.7.7 Accuracy . 29
5.8 Shield transfer impedance (Z ), test 26e . 29
T
5.8.1 Object . 29
5.8.2 Transfer impedance (Z ) . 29
T
5.8.3 Test method . 29
5.8.4 Test setup . 30
5.8.5 Procedure . 30
5.8.6 Test report . 30
5.8.7 Accuracy . 30
5.9 Coupling attenuation (a ) . 30
C
5.9.1 Object . 30
5.9.2 Coupling attenuation (a ) . 30
C
– 4 – IEC 60512-28-100:2024 © IEC 2024

5.9.3 Test method . 31
5.9.4 Test setup . 31
5.9.5 Procedure . 31
5.9.6 Test report . 31
5.9.7 Accuracy . 31
5.10 Low frequency coupling attenuation a . 31
CLF
5.10.1 Object . 31
5.10.2 Low frequency coupling attenuation (a ) . 32
CLF
5.10.3 Test method . 32
5.10.4 Test setup . 32
5.10.5 Procedure . 32
5.10.6 Test report . 32
5.10.7 Accuracy . 33
Annex A (informative) Derivation of mixed mode parameters using the modal
decomposition technique . 34
A.1 General . 34
A.2 Example of a calculation . 34
Annex B (normative) Indirect-reference test fixtures . 37
B.1 General . 37
B.2 Requirements . 37
B.2.1 General requirements . 37
B.2.2 Specific requirements . 37
Annex C (normative) Direct-probe test fixtures . 39
C.1 General . 39
C.2 Requirements . 39
C.2.1 General requirements . 39
C.2.2 Specific requirements . 39
Annex D (normative) Specialized test fixtures . 41
D.1 General . 41
D.2 Requirements . 41
D.2.1 General requirements . 41
D.2.2 Specific requirements . 41
Annex E (informative) Symmetry verification of resistors used for calibration . 42
E.1 General . 42
E.2 Procedure . 42
E.3 Example . 43
Bibliography . 45

Figure 1 – Diagram of a single-ended 4-port device . 12
Figure 2 – Diagram of a balanced 2-port device . 13
Figure 3 – Calibration of reference loads . 15
Figure 4 – Resistor termination networks . 16
Figure 5 – Definition of reference planes. 17
Figure 6 – Insertion loss and TCTL measurement . 21
Figure 7 – Return loss and TCL measurement . 22
Figure 8 – NEXT measurement . 24
Figure 9 – FEXT measurement . 26

IEC 60512-28-100:2024 © IEC 2024 – 5 –

Figure A.1 – Voltage and current on balanced DUT . 34
Figure A.2 – Voltage and current on unbalanced DUT . 35
Figure E.1 – Example of 50 Ω SMA termination comparison (1 MHz − 100 MHz). 43
Figure E.2 – Comparison of phase selected and only magnitude selected terminations . 44

Table 1 – Mixed mode S-parameter nomenclature . 13
Table 2 – Switch performance requirements . 14
Table 3 – Requirements for terminations at calibration plane . 14
Table 4 – Interconnection DM return loss and TCTL requirements . 19
Table 5 – Overall test setup requirements . 19
Table B.1 – [1] series 8-way connector types detail specifications and respective detail
connector test procedures standards . 37
Table B.2 – Reference connector crosstalk (NEXT) vector . 38
Table C.1 – Direct-probe test fixture requirements . 39

– 6 – IEC 60512-28-100:2024 © IEC 2024

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Connectors for electrical and electronic equipment –
Tests and measurements –
Part 28-100: Signal integrity tests up to 2 000 MHz – Tests 28a to 28g

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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
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respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60512-28-100 has been prepared by subcommittee 48B: Electrical connectors, of IEC
technical committee 48: Electrical connectors and mechanical structures for electrical and
electronic equipment. It is an International Standard.
This third edition cancels and replaces the second edition, published in 2019. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The frequency range has been modified to start at 0,1 MHz instead of 1 MHz, to include
single-pair connectors.
IEC 60512-28-100:2024 © IEC 2024 – 7 –

b) All tables and requirements have been revised down to 0,1 MHz, and partially improved to
reduce the impact of the test fixture.
c) Formulae to calculate the S-parameters from single-ended parameters have been added.
d) A note was added for those parameters which are not applicable to single-pair connectors.
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/3109/FDIS 48B/3112/RVD
Full information on the voting for the approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
A list of all parts in the IEC 60512 series, published under the general title Connectors for
electrical and electronic equipment, can be found on the IEC website.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.

– 8 – IEC 60512-28-100:2024 © IEC 2024

Connectors for electrical and electronic equipment –
Tests and measurements –
Part 28-100: Signal integrity tests up to 2 000 MHz – Tests 28a to 28g

1 Scope
This part of IEC 60512 specifies the test methods for signal integrity and transmission
performance for connectors specified in respective parts of IEC 60603-7 [1], IEC 61076-1 [2],
IEC 61076-2 [3], IEC 61076-3 [4] and IEC 63171 [5] series of standards for connecting hardware
applications from 0,1 MHz up to 2 000 MHz, with reference to this document.
NOTE This document is also suitable for testing signal integrity and transmission performance of connectors up to
a lower value of maximum frequency; however, the test methodology specified in the detail specification for any given
connector remains the reference conformance test for that connector.
The list of connector series of standards does not preclude referencing this document in other
connector manufacturer’s specifications or published standards.
Test procedures provided herein are:
– insertion loss, test 28a;
– return loss, test 28b;
– near-end crosstalk (NEXT) test 28c;
– far-end crosstalk (FEXT), test 28d;
– transverse conversion loss (TCL), test 28f;
– transverse conversion transfer loss (TCTL), test 28g.
Other test procedures referenced herein are:
– shield transfer impedance (Z ), see IEC 60512-26-100, test 26e.
T
– coupling attenuation (a ), see IEC 62153-4-7 and IEC 62153-4-12.
C
– low frequency coupling attenuation (a ) see IEC 62153-4-7 and IEC 62153-4-15.
CLF
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050-581, International Electrotechnical Vocabulary (IEV) – Part 581: Electromechanical
components for electronic equipment
IEC 60512-1, Connectors for electronic equipment – Tests and measurements – Part 1: Generic
specification
IEC 60512-26-100, Connectors for electronic equipment – Tests and measurements – Part
26-100: Measurement setup, test and reference arrangements and measurements for
connectors according to IEC 60603-7 – Tests 26a to 26g

IEC 60512-28-100:2024 © IEC 2024 – 9 –

IEC 60512-27-100, Connectors for electronic equipment – Tests and measurements –
Part 27-100: Signal integrity tests up to 500 MHz on 60603-7 series connectors – Tests 27a to
27g
IEC 60512-27-200, Connectors for electrical and electronic equipment – Tests and
measurements – Part 27-200: Additional specifications for signal integrity tests up to 2 000 MHz
on IEC 60603-7 series connectors – Tests 27a to 27g
IEC 60512-29-100, Connectors for electronic equipment – Tests and measurements –
Part 29-100: Signal integrity tests up to 500 MHz on M12 style connectors – Tests 29a to 29g
IEC 60603-7, Connectors for electronic equipment – Part 7: Detail specification for 8-way,
unshielded, free and fixed connectors
IEC 61076-1, Connectors for electronic equipment – Product requirements – Part 1: Generic
specification
IEC 61076-3-104, Connectors for electrical and electronic equipment – Product requirements –
Part 3-104: Detail specification for 8-way, shielded free and fixed connectors for data
transmissions with frequencies up to 2 000 MHz
IEC 61076-3-110, Connectors for electronic equipment – Product requirements – Part 3-110:
Detail specification for free and fixed connectors for data transmission with frequencies up to
3 000 MHz
IEC 61156-1, Multicore and symmetrical pair/quad cables for digital communications – Part 1:
Generic specification
IEC 61169-15, Radio-frequency connectors – Part 15: Sectional specification – RF coaxial
connectors with inner diameter of outer conductor 4,13 mm (0,163 in) with threaded coupling –
Characteristic impedance 50 Ω (type SMA)
IEC 61169-16, Radio-frequency connectors – Part 16: RF coaxial connectors with inner
diameter of outer conductor 7 mm (0,276 in) with screw coupling – Characteristic impedance
50 ohms (75 ohms) (Type N)
IEC 62153-4-6, Metallic cables and other passive components test methods – Part 4-6:
Electromagnetic compatibility (EMC) – Surface transfer impedance – Line injection method
IEC 62153-4-7, Metallic cables and other passive components test methods – Part 4-7:

Electromagnetic compatibility (EMC) – Test method for measuring of transfer impedance Z
T
and screening attenuation a or coupling attenuation aC of connectors and assemblies – Triaxial
S
tube in tube method
IEC 62153-4-12, Metallic communication cable test methods – Part 4-12: Electromagnetic
compatibility (EMC) – Coupling attenuation or screening attenuation of connecting hardware –
Absorbing clamp method
IEC 62153-4-15, Metallic cables and other passive components test methods – Part 4-15:
Electromagnetic compatibility (EMC) – Test method for measuring transfer impedance and
screening attenuation – or coupling attenuation with triaxial cell
IEC 63171, Connectors for electrical and electronic equipment – Shielded or unshielded free
and fixed connectors for balanced single-pair data transmission with current-carrying capacity
– General requirements and tests

– 10 – IEC 60512-28-100:2024 © IEC 2024

ISO/IEC 11801-1, Information technology – Generic cabling for customer premises – Part 1:
General requirements
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 60050-581,
IEC 61076-1, IEC 60512-1, IEC 60603-7, IEC 61076-3-104, IEC 61076-3-110, IEC 61156-1 and
IEC 63171, and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
intermodal
parameter or measurement that either sources on the common
mode and measures on the differential mode, or sources on the differential mode and measures
on the common mode
3.1.2
mixed mode
parameter or measurement containing differential mode,
common mode, and intermodal S-matrices
3.1.3
interconnection
cable assembly made of a cable terminated by two connectors
EXAMPLE: A connection between a VNA, switching matrix or test fixture
3.2 Abbreviated terms
a coupling attenuation
C
a Low frequency coupling attenuation
CLF
CM common mode
DM differential mode
DUT device under test
FEXT far-end crosstalk loss
LCL longitudinal conversion loss
LCTL longitudinal conversion transfer loss
NEXT near-end crosstalk loss
RF radio frequency
RL return loss, common mode
CM
RL return loss, differential mode
DM
SE single-ended
TCL transverse conversion loss
TCTL transverse conversion transfer loss
VNA vector network analyser
IEC 60512-28-
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