EN 50173-4:2018/A1:2023

SLOVENSKI STANDARD
01-maj-2024
Informacijska tehnologija - Univerzalni sistemi polaganja kablov - 4. del: Bivalni
prostori - Dopolnilo A1
Information technology - Generic cabling systems - Part 4: Homes
Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 4:
Wohnungen
Technologies de l'information - Systèmes de câblage générique - Partie 4: Locaux
d'habitation
Ta slovenski standard je istoveten z: EN 50173-4:2018/A1:2023
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50173-4
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2018
ICS 33.040.50 Supersedes EN 50173-4:2007
In accordance with CENELEC/BT Decision D144/010, this consolidated version is purely
informal and is intended to be used by the CENELEC National Committees only.

This document includes Amendment 1, approved by CENELEC on 2023-10-25.
The start and finish of text introduced or altered by amendment is indicated in the text by tags
!".
English Version
Information technology - Generic cabling systems - Part 4:
Homes
Technologies de l'information - Systèmes de câblage Informationstechnik - Anwendungsneutrale
générique - Partie 4: Locaux d'habitation Kommunikationskabelanlagen - Teil 4: Wohnungen
This European Standard was approved by CENELEC on 2018-03-19. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey 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
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50173-4:2018 E
EN 50173-4:2018+A1:2024 (E)
Contents Page
European foreword 6
Introduction 8
1 Scope and conformance 11
1.1 Scope 11
1.2 Conformance 11
2 Normative references 12
3 Terms, definitions and abbreviations 13
3.1 Terms and definitions 13
3.2 Abbreviations 14
4 Structure of the generic cabling system in a home 14
4.1 General 14
4.2 Functional elements 14
4.3 Structure and hierarchy 14
4.4 Cabling subsystems 16
4.4.1 Home cabling subsystems 16
4.4.2 Associated cabling subsystems 17
4.5 Design objectives 18
4.5.1 General 18
4.5.2 Primary home cabling 18
4.5.3 Secondary home cabling 19
4.5.4 Network access cabling 19
4.6 Accommodation of functional elements 19
4.6.1 General 19
4.6.2 Application outlets 20
4.6.3 Distributors 20
4.6.4 Cables 20
4.7 Interfaces 20
4.7.1 Equipment interfaces (EIs) and test interfaces (TIs) 20
4.7.2 Channels and links 22
4.8 Dimensioning and configuration 22
4.8.1 Distributors 22
4.8.2 Cables 23
4.8.3 Connecting hardware 24
4.8.4 Equipment cords 24
4.8.5 Application outlets 24
4.8.6 External network interfaces 25
5 Requirements for channels in homes 26

EN 50173-4:2018+A1:2024 (E)
5.1 General 26
5.2 Environmental performance 26
5.3 Transmission performance 26
5.3.1 General 26
5.3.2 Channel construction 26
5.3.3 Balanced cabling 27
5.3.4 Coaxial cabling 27
5.3.5 Optical fibre cabling channels 27
6 Reference implementations in homes 28
6.1 General 28
6.2 Balanced cabling channels 28
6.2.1 General 28
6.2.2 Component choice 28
6.2.3 Dimensions 29
6.3 Optical fibre cabling 30
6.3.1 General 30
6.3.2 Component choice 31
6.3.3 Dimensions 31
6.4 Coaxial cabling 32
7 Requirements for cables in homes 32
7.1 General 32
7.2 Balanced cables of Category 5, 6, 6A, 7, 7A, 8.1, 8.2 and BCT-B 32
7.2.1 General 32
7.2.2 Cables of Category 5, 6, 6A, 7, 7A, 8.1 and 8.2 32
7.2.3 Cables of Category BCT-B 33
7.3 Optical fibre cables of Category OM3, OM4, OM5, OS1a and OS2 33
7.4 Coaxial cables of Category BCT-C 33
8 Requirements for connecting hardware in homes 33
8.1 General requirements 33
8.2 Balanced connecting hardware 33
8.2.1 General requirements 33
8.2.2 Electrical, mechanical and environmental performance 33
8.3 Optical fibre connecting hardware 34
8.3.1 General requirements 34
8.3.2 Connecting hardware for optical fibres 34
8.4 Coaxial connecting hardware of Category BCT-C 34
8.4.1 General 34
8.4.2 Broadcast Outlet 34
EN 50173-4:2018+A1:2024 (E)
8.4.3 Connecting hardware at other locations 34
9 Requirements for cords and jumpers in homes 35
9.1 Jumpers 35
9.2 Balanced cords of Category 5, 6, 6A, 7, 7A, 8.1, 8.2 and BCT-B 35
9.2.1 General 35
9.2.2 Additional requirements for certain cords 35
9.3 Optical fibre cords of Category OM3, OM4, OM5, OS1a and OS2 35
9.4 Coaxial cords of Category BCT-C 35
Annex A (normative) Link performance limits 36
A.1 General 36
A.2 Balanced cabling 36
A.3 Coaxial cabling 36
A.4 Optical fibre cabling 36
Annex B (informative) Application-specific bct outlets and baluns 37
B.1 TV outlets for coaxial cabling 37
B.1.1 Double outlet 37
B.1.2 Triple outlet 37
B.2 Baluns for tv applications using 100 ω balanced cabling channels 37
B.2.1 General 37
B.2.2 Impedance matching balun (100 Ω/75 Ω) 37
B.2.3 Impedance matching and frequency splitting balun 37
Annex C (informative) Application-specific networks for audio/video applications 38
C.1 General 38
C.2 Antenna-fed networks 38
C.3 Cable networks (CATV-, MATV- and SMATV-networks and individual receiving networks) 38
C.3.1 System performance of cable networks 38
C.3.2 Safety requirements for cable networks 38
C.3.3 EMC requirements for equipment and for cable networks 38
Annex D (informative) A-deviations 40
Bibliography 42
Figures
Figure 1 — Schematic relationship between the EN 50173 series and other relevant standards . 8
Figure 2 — Structure of the generic cabling system in a home . 15
Figure 3 — Hierarchical topology of a generic cabling system in support of ICT and/or BCT applications . 15
Figure 4 — Examples of interconnection of primary home and network access cabling . 17
Figure 5 — Network access cabling in premises containing one or more homes . 18
Figure 6 — Accommodation of functional elements . 20
Figure 7 — Equipment and test interfaces in support of ICT and BCT applications . 21
Figure 8 — Channels and permanent links within a home . 23

EN 50173-4:2018+A1:2024 (E)
Figure 9 — Reference implementations for ICT and BCT channels (PHD/SHD to TO/BO) . 29
Figure 10 — Primary/secondary home cabling channels . 31
Tables
Table 1 — Contextual relationship between EN 50173 series and other standards relevant for information
technology cabling systems . 9
Table 2 — Maximum channel lengths for reference implementations of ICT and BCT channels . 23
Table 3 — Channel length equations . 30

EN 50173-4:2018+A1:2024 (E)
European foreword
This document (EN 50173-4:2018) has been prepared by the Technical Committee CENELEC TC 215
"Electrotechnical aspects of telecommunication equipment" in cooperation with the Technical Committee
CENELEC TC 209 "Cable networks for television signals, sound signals and interactive services".
The following dates are fixed:
latest date by which this document has (dop) 2019-03-19
•
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-03-19
standards conflicting with this document
have to be withdrawn
This document supersedes the text of EN 50173-4:2007 + A1:2010 + A2:2012.
The European Standards EN 50173:1995 and EN 50173-1:2002 have been developed to enable the
application-independent cabling to support ICT applications in office premises. Their basic principles,
however, are applicable to other types of applications and in other types of premises.
TC 215 has decided to establish relevant European Standards which address the specific requirements of
these premises. In order to point out the commonalities of these cabling design standards, these EN are
published as individual parts of the series EN 50173, thus also acknowledging that standards users recognize
the designation “EN 50173” as a synonym for generic cabling design.
At the time of publication of this European Standard, series EN 50173 comprises the following standards:
EN 50173-1 Information technology — Generic cabling systems — Part 1: General requirements
EN 50173-2 Information technology — Generic cabling systems — Part 2: Office spaces
EN 50173-3 Information technology — Generic cabling systems — Part 3: Industrial spaces
EN 50173-4 Information technology — Generic cabling systems — Part 4: Homes
EN 50173-5 Information technology — Generic cabling systems — Part 5: Data centre spaces
Information technology — Generic cabling systems — Part 6: Distributed building
EN 50173-6
services
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.
This edition of EN 50173-4:
a) introduces new components 8.1 and 8.2 for balanced cabling to support new channel Classes I and II as
well as optical fibre cabling (OM5) as defined in EN 50173-1:2018;
b) revises the functional elements in Clause 4;
c) clarifies the relation of generic home cabling systems to the network access cabling subsystem in
Clause 4;
d) introduces relevant design objectives for home cabling systems;
e) introduces cable sharing requirements;
f) removes CCCB cabling and relevant component requirements;

EN 50173-4:2018+A1:2024 (E)
g) removes Annex B of the previous edition;
h) aligns the document structure across the EN 50173 series and updates the document both technically
and editorially.
EN 50173-4:2018+A1:2024 (E)
Introduction
The importance of cabling infrastructure is similar to that of other fundamental utilities such as water and
energy supply and interruptions to the services provided over that infrastructure can have a serious impact. A
lack of design foresight, the use of inappropriate components, incorrect installation, poor administration or
inadequate support can threaten quality of service and have commercial consequences for all types of users.
This standard specifies generic cabling within a single home.
The home can contain one or more buildings or can be within a building which contains more than one home
(e.g. one home in a multi-dwelling building).
The campus or backbone cabling connecting individual homes within multi-tenant premises is specified
according to the relevant standard (for instance EN 50173-1 or EN 60728 series).
Generic cabling for distributed building services in homes is specified in EN 50173-6 which addresses all of
the above premises and spaces within them.
Figure 1 and Table 1 show the schematic and contextual relationships between the standards produced by
TC 215 for information technology cabling, namely:
1) this and other parts of the EN 50173 series;
2) installation (EN 50174 series);
3) bonding (EN 50310).
Figure 1 — Schematic relationship between the EN 50173 series and other relevant standards

EN 50173-4:2018+A1:2024 (E)
Table 1 — Contextual relationship between EN 50173 series and other standards relevant for
information technology cabling systems
Building design Generic cabling Specification Installation Operation phase
phase design phase phase phase
EN 50173-2 EN 50174-1
EN 50173-3
Planning phase
EN 50173-4
EN 50174-2
EN 50173-5
EN 50310 EN 50174-3 EN 50174-1
EN 50173-6 EN 50174-2
EN 50310
EN 50174-3
(these ENs
EN 50310
reference general
requirements of
EN 50173-1)
In addition, a number of Technical Reports have been developed to support or extend the application of these
standards, including:
— CLC/TR 50173-99-1, Cabling guidelines in support of 10 GBASE-T;
— CLC/TR 50173-99-2, Information technology — Implementation of BCT applications using cabling in
accordance with EN 50173-4;
— CLC/TR 50173-99-3, Information technology — Generic cabling systems — Part 99-3: Home cabling
infrastructures up to 50 m in length to support simultaneous and non simultaneous provision of
applica
...