|
ISO/IEC TS 11801-9903
Edition 1.0 2021-03
TECHNICAL
SPECIFICATION
colour
inside
Information technology – Generic cabling systems for customer premises –
Part 9903: Matrix modelling of channels and links
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about
ISO/IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address
below or your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
.
ISO/IEC TS 11801-9903
Edition 1.0 2021-03
TECHNICAL
SPECIFICATION
colour
inside
Information technology – Generic cabling systems for customer premises –
Part 9903: Matrix modelling of channels and links
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-9498-7
– 2 – ISO/IEC TS 11801-9903:2021
ISO/IEC 2021
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Symbols and abbreviated terms . 10
4 Matrix model . 11
5 Matrix definition . 11
5.1 General . 11
5.2 Quadriports . 11
5.3 Matrix port definition for a two-pair system representative for modelling
purposes . 11
5.4 Operational scattering matrix . 12
5.5 General naming convention. 12
5.6 S-matrix . 13
5.7 Passivity . 13
5.8 Operational reflection loss matrix . 14
5.9 Transmission matrix (T-matrix) . 14
5.10 S-matrix of cabling . 14
6 Calculation with matrices using limit lines . 15
7 Extracting limit lines . 15
8 General case using mixed-mode matrices. 16
8.1 General . 16
8.2 M-parameters . 16
9 Submatrix DD . 17
9.1 General . 17
9.2 Equations to extract the cabling limit lines . 17
9.2.1 General . 17
9.2.2 Operational attenuation . 17
9.2.3 Near-end crosstalk . 17
9.2.4 Attenuation to far-end crosstalk ratio . 17
9.2.5 Reflection (RL) . 18
10 Component values to be used as input to the model . 18
10.1 General . 18
10.2 Cable . 19
10.2.1 General . 19
10.2.2 Wave attenuation . 19
10.2.3 Near-end crosstalk . 19
10.2.4 Far-end crosstalk . 19
10.2.5 Reflection . 20
10.3 Connections . 21
10.3.1 General . 21
10.3.2 As a point source of disturbance . 21
10.3.3 As a transmission line . 21
11 Submatrices CC, CD and DC . 22
ISO/IEC 2021
11.1 General . 22
11.2 Submatrix CD . 22
11.3 Submatrix DC . 22
11.4 Submatrix CC . 22
Annex A (informative) Matrix conversion formulas . 23
A.1 Overview. 23
A.2 Formulas. 23
A.2.1 Mixed-mode to T-matrix . 23
A.2.2 T-matrix to M-matrix . 23
A.2.3 Conversion matrices . 23
Annex B (normative) Channel and permanent link models for balanced cabling . 25
B.1 General . 25
B.2 Insertion loss . 25
B.2.1 Insertion loss of the channel configuration . 25
B.2.2 Insertion loss of the permanent link configurations . 26
B.2.3 Assumptions for insertion loss . 26
B.3 NEXT . 27
B.3.1 NEXT of the channel configuration . 27
B.3.2 NEXT of the permanent link configurations . 27
B.3.3 Assumptions for NEXT . 28
B.4 ACR-F . 31
B.4.1 ACR-F of the channel configuration . 31
B.4.2 ACR-F for the permanent link configurations . 31
B.4.3 Assumptions for ACR-F . 32
B.5 No Return loss . 32
B.5.1 Return loss of the channel and permanent link configurations . 32
B.5.2 Assumptions for the return loss circuit analysis method . 33
B.6 PS ANEXT link modelling . 36
B.6.1 General . 36
B.6.2 PS ANEXT between connectors . 36
B.6.3 PS ANEXT between cable segments . 36
B.6.4 Principles of link modelling . 36
B.7 PS AACR-F link modelling . 37
B.7.1 General . 37
B.7.2 PS AFEXT between connectors . 37
B.7.3 PS AACR-F between cable segments . 37
B.7.4 Principles of link modelling . 37
B.7.5 Impact of PS AACR-F in channels and links with substantially different
lengths . 38
B.8 Component assumptions for modelling purposes. 41
Annex C (informative) Terms and definitions . 43
C.1 Comparison of namings . 43
C.2 General . 44
C.3 Background of terms and definitions . 44
C.3.1 Operational attenuation . 44
C.3.2 Operational transfer function (T ) . 46
B
C.3.3 Image or wave transfer function (T) . 46
C.3.4 Insertion transfer function of a two-port (T ) . 46
BI
– 4 – ISO/IEC TS 11801-9903:2021
ISO/IEC 2021
C.3.5 Insertion transfer function (T ) measured with a vector network
BI
analyser . 46
C.3.6 Operation
...