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IEC 61935-1-1
Edition 1.0 2019-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 1-1: Additional requirements for the measurement of transverse conversion
loss and equal level transverse conversion transfer loss
Spécification relative aux essais des câblages symétriques et coaxiaux des
technologies de l’information –
Partie 1-1: Exigences supplémentaires pour le mesurage de l’affaiblissement de
conversion transversale et de l’affaiblissement de transfert de conversion
transversale de niveau égal
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IEC 61935-1-1
Edition 1.0 2019-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for the testing of balanced and coaxial information technology
cabling –
Part 1-1: Additional requirements for the measurement of transverse conversion
loss and equal level transverse conversion transfer loss
Spécification relative aux essais des câblages symétriques et coaxiaux des
technologies de l’information –
Partie 1-1: Exigences supplémentaires pour le mesurage de l’affaiblissement de
conversion transversale et de l’affaiblissement de transfert de conversion
transversale de niveau égal
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.10 ISBN 978-2-8322-7282-4
– 2 – IEC 61935-1-1:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms definitions and acronyms . 6
3.1 Terms and definitions . 6
3.2 Acronyms . 7
4 Reference measurement procedures . 7
4.1 Cabling configurations . 7
4.2 Transverse conversion loss . 7
4.3 Equal level transverse conversion transfer loss . 7
5 Field test measurement requirements for TCL and ELTCTL . 7
5.1 General . 7
5.2 Field test parameters . 7
5.3 Data reporting and accuracy . 7
5.3.1 General . 7
5.3.2 Detailed results . 7
5.3.3 Summary results . 8
6 Field tester measurement accuracy requirements . 8
6.1 General . 8
6.2 Comparison methods to reference procedures . 9
6.3 Accuracy performance requirements for level V field testers . 9
6.4 Procedures for determining field tester parameters . 10
6.4.1 Residual TCL of the tester (E ) . 10
RTCL
6.4.2 Residual TCTL of the tester (E ). 10
RTCTL
6.4.3 TCL random noise floor of the tester (E ) . 11
RTCL
6.4.4 TCTL random noise floor of the tester (E ) . 11
RTCTL
Annex A (informative) Error models . 12
A.1 Error model for the TCL measurement function . 12
A.2 Error model for the ELTCTL measurement function . 12
Figure 1 – Diagram of the measurement of residual TCL . 10
Figure 2 – Diagram of the measurement of residual TCTL . 11
Table 1 – Summary reporting requirements for field test equipment . 8
Table 2 – Summary of TCL and ELTCTL accuracy for level V testers . 8
Table 3 – Informative summary of TCL and ELTCTL accuracy values for level V testers . 9
Table 4 – Summary of tester requirements for TCL measurements . 9
Table 5 – Summary of tester requirements for ELTCTL measurements . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATION FOR THE TESTING OF BALANCED
AND COAXIAL INFORMATION TECHNOLOGY CABLING –
Part 1-1: Additional requirements for the measurement of transverse
conversion loss and equal level transverse conversion transfer loss
FOREWORD
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International Standard IEC 61935-1-1 has been prepared by IEC technical committee 46:
Cables, wires, waveguides, RF connectors, RF and microwave passive components and
accessories.
The text of this
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