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IEC TS 61156-1-2:2023

(Main)

Multicore and symmetrical pair/ quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/ quad cables

Multicore and symmetrical pair/ quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/ quad cables

IEC TS 61156-1-2:2023 specifies symmetrical pair/quad electrical transmission characteristics and test methods present in IEC 61156-1:2002 (Edition 2) and not carried into IEC 61156-1:2007 (Edition 3). It details characteristic impedance test methods and function fitting procedures, the open/short-circuit method and the background of unbalance attenuation measurement.
It is extended by a description of the balunless measurements technique, which is an amendment to the former technical report and is improved and incorporated into this new edition. The complete document is transferred into a technical specification.

General Information

Status
Published
Publication Date
28-Nov-2023
ICS
21.220 - Flexible drives and transmissions
Technical Committee
SC 46C - Wires and symmetric cables
Drafting Committee
WG 7 - TC 46/SC 46C/WG 7
Current Stage
PPUB - Publication issued
Start Date
18-Jul-2023
Completion Date
29-Nov-2023
Ref Project

Relations

Revises
IEC TR 61156-1-2:2009/AMD1:2014 - Amendment 1 - Multicore and symmetrical pair/quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/quad cables
Effective Date
01-Dec-2023
Revises
IEC TR 61156-1-2:2009 - Multicore and symmetrical pair/quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/quad cables
Effective Date
01-Dec-2023

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IEC TS 61156-1-2:2023 - Multicore and symmetrical pair/ quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/ quad cables Released:29. 11. 2023IEC TS 61156-1-2:2023 - Multicore and symmetrical pair/ quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/ quad cables Released:29. 11. 2023
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Technical specification
IEC TS 61156-1-2:2023 - Multicore and symmetrical pair/ quad cables for digital communications - Part 1-2: Electrical transmission characteristics and test methods of symmetrical pair/ quad cables Released:29. 11. 2023
English language
74 pages
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IEC TS 61156-1-2
®

Edition 1.0 2023-11
TECHNICAL
SPECIFICATION

colour
inside


Multicore and symmetrical pair/quad cables for digital communications –
Part 1-2: Electrical transmission characteristics and test methods of symmetrical
pair/quad cables

IEC TS 61156-1-2:2023-11(en)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2023 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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---------------------- Page: 2 ----------------------
IEC TS 61156-1-2

®


Edition 1.0 2023-11




TECHNICAL



SPECIFICATION








colour

inside










Multicore and symmetrical pair/quad cables for digital communications –

Part 1-2: Electrical transmission characteristics and test methods of

symmetrical pair/quad cables
























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS  21.220 ISBN 978-2-8322-7881-9




  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC TS 61156-1-2:2023 © IEC 2023
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols, units and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Symbols, units and abbreviated terms . 8
4 Basic transmission line formulae. 8
4.1 Overview. 10
4.2 Complex characteristic impedance and propagation coefficient formulae . 11
4.2.1 General . 11
4.2.2 Propagation coefficient . 11
4.2.3 Complex characteristic impedance. 12
4.2.4 Phas
...

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