SIST EN 50173-4:2018
(Main)Information technology - Generic cabling systems - Part 4: Homes
Information technology - Generic cabling systems - Part 4: Homes
This standard specifies generic cabling for homes. A home can contain one or more buildings or can be within a building that contains more than one home.
It covers balanced cabling, optical fibre cabling, and coaxial cabling.
This standard specifies generic cabling for two groups of applications:
- Information and Communications Technologies (ICT);
- Broadcast and Communications Technologies (BCT).
This standard specifies directly or via reference to EN 50173-1 the:
- structure and minimum configuration for generic cabling within homes;
- interfaces at the telecommunications outlet (TO) and broadcast outlet (BO);
- performance requirements for cabling links and channels;
- implementation requirements and options;
- performance requirements for cabling components;
- conformance requirements and verification procedures.
This standard has taken into account requirements specified in application standards listed in EN 50173-1.
Safety and electromagnetic compatibility (EMC) requirements are outside the scope of this standard and are covered by other standards and regulations. However, information given in this standard can be of assistance in meeting these standards and regulations.
Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 4: Wohnungen
Diese Norm legt anwendungsneutrale Kommunikationskabelanlagen für Wohnungen fest. Eine Wohnung kann ein oder mehrere Gebäude umfassen oder kann in einem Gebäude mit mehreren Wohnungen liegen.
Sie behandelt Verkabelungen mit symmetrischen Kupferkabeln, Lichtwellenleiterverkabelungen und koaxiale Verkabelungen.
Diese Norm legt anwendungsneutrale Kommunikationskabelanlagen für zwei Arten von Netzanwendungen fest:
– Informations- und Kommunikationstechnik (IuK);
– Rundfunk- und Kommunikationstechnik (RuK).
Diese Norm legt entweder direkt oder mittels Verweisung auf EN 50173 1 Folgendes fest:
– Struktur und Mindestkonfiguration für anwendungsneutrale Kommunikationskabelanlagen in Wohnungen;
– Schnittstellen am informationstechnischen Anschluss (TA) und am Rundfunkanschluss (RA);
– Anforderungen an das Leistungsvermögen von Verkabelungs- und Übertragungsstrecken;
– Anforderungen an und Optionen für Ausführungen;
– Anforderungen an das Leistungsvermögen von Verkabelungskomponenten;
– Konformitätsanforderungen und Verifizierungsverfahren.
In dieser Norm wurden Anforderungen berücksichtigt, die in den in EN 50173 1 aufgeführten Anwendungs-normen festgelegt werden.
Anforderungen an Sicherheit und elektromagnetische Verträglichkeit (EMV) gehören nicht zum Anwendungs-bereich dieser Norm und werden von anderen Normen und Vorschriften behandelt. Jedoch können die in dieser Norm bereitgestellten Informationen bei der Einhaltung dieser Normen und Vorschriften hilfreich sein.
Technologies de l'information - Systèmes de câblage générique - Partie 4: Locaux d'habitation
Informacijska tehnologija - Univerzalni sistemi polaganja kablov - 4. del: Bivalni prostori
Ta standard določa univerzalne kable za bivalne prostore. Bivalni prostor lahko vključuje eno ali več stavb oziroma je lahko v stavbi, ki vključuje več kot en bivalni prostor.
Obravnava simetrične kable, kable z optičnimi vlakni in koaksialne kable.
Ta standard določa univerzalne kable za dve skupini uporabe:
– informacijska in komunikacijska tehnologija (ICT);
– radiodifuzna in komunikacijska tehnologija (BCT);
Ta standard neposredno ali s sklicem na standard EN 50173-1 določa:
– strukturo in minimalno konfiguracijo univerzalnih kablov v bivalnih prostorih;
– vmesnike na telekomunikacijski vtičnici (TO) in radiodifuzni vtičnici (BO);
– zahteve za zmogljivost kabelskih povezav in kanalov;
– zahteve in možnosti za izvedbo;
– zahteve za zmogljivost kabelskih komponent;
– zahteve za skladnost in postopke preverjanja.
Ta standard upošteva zahteve, določene v standardih za uporabo, navedenih v standardu EN 50173-1.
Varnostne zahteve in zahteve za elektromagnetno združljivost (EMC) ne spadajo na področje uporabe tega standarda ter so obravnavane v drugih standardih in predpisih. Vendar so lahko informacije iz tega standarda v pomoč pri izpolnjevanju teh standardov in predpisov.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Informacijska tehnologija - Univerzalni sistemi polaganja kablov - 4. del: Bivalni prostoriInformationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 4: WohnungenTechnologies de l'information - Systèmes de câblage générique
- Partie 4: Locaux d'habitationInformation technology - Generic cabling systems - Part 4: Homes91.140.50Sistemi za oskrbo z elektrikoElectricity supply systems35.110OmreževanjeNetworking33.040.50Vodi, zveze in tokokrogiLines, connections and circuitsICS:Ta slovenski standard je istoveten z:EN 50173-4:2018SIST EN 50173-4:2018en,fr01-oktober-2018SIST EN 50173-4:2018SLOVENSKI
STANDARDSIST EN 50173-4:2008/A1:2011/AC:2011SIST EN 50173-4:2008/A2:2013SIST EN 50173-4:2008SIST EN 50173-4:2008/A1:20111DGRPHãþD
SIST EN 50173-4:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 50173-4
June 2018 ICS 33.040.50
Supersedes
EN 50173-4:2007English Version
Information technology - Generic cabling systems - Part 4: Homes
Technologies de l'information - Systèmes de câblage générique
- Partie 4: Locaux d'habitation
Informationstechnik - Anwendungsneutrale 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 ESIST EN 50173-4:2018
EN 50173-4:2018 (E) 2 Contents
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 SIST EN 50173-4:2018
EN 50173-4:2018 (E) 3 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 SIST EN 50173-4:2018
EN 50173-4:2018 (E) 4 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
37 B.2.1 General 37 B.2.2
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 SIST EN 50173-4:2018
EN 50173-4:2018 (E) 5 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 SIST EN 50173-4:2018
EN 50173-4:2018 (E) 6 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 to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-03-19 • latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2021-03-19 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 EN 50173-6 Information technology — Generic cabling systems — Part 6: Distributed building 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; SIST EN 50173-4:2018
EN 50173-4:2018 (E) 7 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. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 8 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 SIST EN 50173-4:2018
EN 50173-4:2018 (E) 9 Table 1 — Contextual relationship between EN 50173 series and other standards relevant for information technology cabling systems Building design phase Generic cabling design phase Specification phase Installation phase Operation phase EN 50310 EN 50173-2 EN 50173-3 EN 50173-4 EN 50173-5 EN 50173-6 (these ENs reference general requirements of EN 50173-1) EN 50174-1 EN 50174-2 EN 50174-3 EN 50310 EN 50174-1 Planning phase EN 50174-2 EN 50174-3 EN 50310 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 applications. In addition, a number of cabling design standards have been developed using components of EN 50173-1 (e.g. EN 50098 series and EN 50700). The generic cabling specified by this standard provides users with: — an application independent system capable of supporting a wide range of applications in a range of installation and operating environments; — a flexible scheme such that modifications are both easy and economical; — a multi-vendor supply chain within an open market for cabling components. In addition this standard provides: a) relevant industry professionals with guidance allowing the accommodation of cabling before specific requirements are known; i.e. in the initial planning either for construction or refurbishment and for further deployment as the requirements of areas are defined; b) industry and standardization bodies with a cabling system which supports current products and provides a basis for future product development and applications standardization. Applications addressed in this standard include those developed by the Technical Committees of IEC (including the subcommittees of ISO/IEC JTC 1) and study groups of ITU-T as used to support the following services: — Information and Communications Technologies (ICT); — Broadcast and Communications Technologies (BCT). This standard provides guidance where cabling is designed to support only one of the services listed above. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 10 Physical layer requirements for the applications listed in EN 50173-1:2018, Annex F, have been analysed to determine their compatibility with the cabling performance specified in this standard and, together with statistics concerning premises geography from different countries and the models described in Clause 4, have been used to develop the requirements for cabling components and to stipulate their arrangement into cabling systems. As a result, this standard: a) specifies a structure for generic cabling supporting a wide variety of applications including, but not restricted to, those in EN 50173-1:2018, Annex F; b) adopts balanced cabling channel and link Classes D, E, EA, F, FA and BCT-B specified in EN 50173-1; c) adopts coaxial cabling channel and link Classes BCT-C specified in EN 50173-1; d) adopts optical fibre cabling channel and link requirements specified in EN 50173-1; e) adopts component requirements, specified in EN 50173-1, and specifies cabling implementations that ensures performance of links and of channels meeting the requirements of a specified group (e.g. Class) of applications. Life expectancy of generic cabling systems can vary depending on environmental conditions, supported applications, aging of materials used in cables, and other factors such as access to pathways (campus pathways are more difficult to access than building pathways). With appropriate choice of components, generic cabling systems meeting the requirements of this standard are expected to have a life expectancy of at least ten years. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 11 1 Scope and conformance 1.1 Scope This standard specifies generic cabling for homes. A home can contain one or more buildings or can be within a building that contains more than one home. It covers balanced cabling, optical fibre cabling, and coaxial cabling. This standard specifies generic cabling for two groups of applications: — Information and Communications Technologies (ICT); — Broadcast and Communications Technologies (BCT). This standard specifies directly or via reference to EN 50173-1 the: — structure and minimum configuration for generic cabling within homes; — interfaces at the telecommunications outlet (TO) and broadcast outlet (BO); — performance requirements for cabling links and channels; — implementation requirements and options; — performance requirements for cabling components; — conformance requirements and verification procedures. This standard has taken into account requirements specified in application standards listed in EN 50173-1. Safety and electromagnetic compatibility (EMC) requirements are outside the scope of this standard and are covered by other standards and regulations. However, information given in this standard can be of assistance in meeting these standards and regulations. 1.2 Conformance For a cabling installation to conform to this standard the following applies. a) The configuration and structure shall conform to the requirements of Clause 4. b) Channels shall meet the requirements of Clause 5. This shall be achieved by one of the following: 1) a channel design and implementation ensuring that the prescribed channel performance of Clause 5 is met; 2) attachment of appropriate components to a permanent link design meeting the prescribed performance class of Annex A. Channel performance shall be ensured where a channel is created by adding more than one cord to either end of a link meeting the requirements of Annex A; 3) for E1 environments, using the reference implementations of Clause 6 and compatible cabling components conforming to the requirements of Clauses 7, 8 and 9 based upon a statistical approach of performance modelling. c) The interfaces to the cabling at the TO and BO shall conform to the requirements of Clause 8 with respect to mating interfaces and performance; SIST EN 50173-4:2018
EN 50173-4:2018 (E) 12 d) Connecting hardware at other places in the cabling structure shall meet the performance requirements specified in Clause 8 independent of the interface used; e) The requirements of EN 50174 series standards and EN 50310 shall be met; f) Local regulations, including those concerning safety and EMC, shall be met. This standard does not specify which tests and sampling levels should be adopted. Test methods to assess conformance with the channel and link requirements of Clause 5 and Annex A respectively are specified in EN 50173-1. The test parameters to be measured, the sampling levels and the treatment of measured results to be applied for a particular installation shall be defined in the installation specification and quality plans for that installation prepared in accordance with EN 50174-1. In the absence of the channel, the conformance of the link shall be used to verify conformance with the standard. Specifications marked “ffs” are preliminary specifications, and are not required for conformance to this standard. 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. CLC/TR 50173-99-2, Information technology — Implementation of BCT applications using cabling in accordance with EN 50173-4 EN 50173-1:2018, Information technology — Generic cabling systems — Part 1: General requirements EN 50174-1, Information technology — Cabling installation — Part 1: Installation specification and quality assurance EN 50174-2, Information technology — Cabling installation — Part 2: Installation planning and practices inside buildings EN 50174-3, Information technology — Cabling installation — Part 3: Installation planning and practices outside buildings EN 60728-1, Cable networks for television signals, sound signals and interactive services — Part 1: System performance of forward paths (IEC 60728-1) EN 61076-3-104, Connectors for electronic equipment — Product requirements — Part 3-104: Detail specification for 8-way, shielded free and fixed connectors for data transmissions with frequencies up to 1 000 MHz (IEC 61076-3-104) EN 61076-3-106, Connectors for electronic equipment — Product requirements — Part 3—106: Rectangular connectors — Detail specification for protective housings for use with 8-way shielded and unshielded connectors for industrial environments incorporating the IEC 60603-7 series interface (IEC 61076-3-106) EN 61754-20:2012, Fibre optic interconnecting devices and passive components — Fibre optic connector interfaces — Part 20: Type LC connector family (IEC 61754-20:2012) SIST EN 50173-4:2018
EN 50173-4:2018 (E) 13 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 50173-1, EN 50174-1 and the following apply. 3.1.1 application outlet point at which terminal equipment is connected to the generic cabling in support of an Information and Communication Technology and/or Broadcast Communications Technology application 3.1.2 balun device to provide impedance transformation between balanced and unbalanced components 3.1.3 broadcast outlet fixed connector providing connection to terminal equipment for BCT applications 3.1.4 home physical structure used as a dwelling place, such as a house or an apartment Note 1 to entry: This can be an individual building, part of a larger building or more than one building. 3.1.5 primary home cable cable that connects the primary home distributor to a telecommunications outlet or broadcast outlet or to a secondary home distributor (where present) 3.1.6 primary home distributor distributor within a home where the cables serving the application outlets (or optional secondary home distributor) are terminated 3.1.7 secondary home cable cable that connects the a secondary home distributor to a telecommunications outlet or broadcast outlet 3.1.8 secondary home distributor an optional distributor used to provide additional infrastructure flexibility and/or allocate transmission equipment between the primary home distributor and application outlets (e. g. for homes with multiple floors) 3.1.9 telecommunications outlet fixed connector providing connection to terminal equipment 3.1.10 terminal equipment cabling cord and other devices connecting the telecommunications outlet or broadcast outlet to the terminal equipment SIST EN 50173-4:2018
EN 50173-4:2018 (E) 14 3.2 Abbreviations For the purposes of this document, the abbreviations given in EN 50173-1 and the following apply. BO Broadcast Outlet CATV Community Antenna Television ENI External Network Interface HBES Home and Building Electronic System MATV Master Antenna Television PHD Primary Home Distributor SHD Secondary Home Distributor SMATV Satellite Master Antenna Television TO Telecommunications Outlet 4 Structure of the generic cabling system in a home 4.1 General This clause identifies the functional elements of generic cabling to support ICT and/or BCT applications, describes how they are connected together to form subsystems and identifies the interfaces at which application-specific components are connected to the generic cabling infrastructure. Channels, created by connecting application-specific cabling components to the generic cabling, are used to support ICT and/or BCT applications. Applications listed in EN 50173-1:2018, Annex F, are supported by connecting active equipment at the external network interfaces, application outlets and the distributors. NOTE The channels specified in Clause 5 do not generally support the simultaneous transmission of multiple applications, of the same or different application Classes, within a cable or at an interface to the generic cabling. The sharing of components by applications can require additional performance requirements and/or supplier instructions to be applied. These requirements are outside the scope of this standard. Further information can be found in CLC/TR 50173-99-3. 4.2 Functional elements The functional elements of generic cabling are as follows: a) primary home distributor (PHD); b) primary home cable; c) secondary home distributor (SHD); d) secondary home cable; e) application outlet i.e. telecommunications outlet (TO) or broadcast outlet (BO). Groups of these functional elements are connected together to form cabling subsystems (see 4.3). 4.3 Structure and hierarchy Generic cabling systems to support ICT and/or BCT applications contain up to two types of cabling subsystems: primary home cabling and the secondary home cabling. The cabling subsystems are connected together to create a generic cabling system with a structure as shown in Figure 2. The composition of the subsystems is described in 4.4.1.1 and 4.4.1.2. The functional elements of the cabling subsystems are connected to form a hierarchical topology as in Figure 3. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 15
Figure 2 — Structure of the generic cabling system in a home Connections between cabling subsystems are either active, requiring application-specific equipment, or passive. Connection to application-specific equipment at the distributors generally adopts an interconnect approach (see EN 50173-1). Cabling designs that adopt a direct connection to the equipment at the distributors can be implemented in order to achieve the desired transmission performance but serve to restrict the flexibility of the infrastructure and are non-conformant with the requirements of this clause. Passive connections between cabling subsystems adopt either a cross-connect approach, by way of either patch cords or jumpers, or an interconnect approach (see EN 50173-1). Passive connections between the primary home cabling subsystem and the network access cabling at the PHD are generally achieved using a cross-connect approach (see EN 50173-1).
a) Topology with primary home distributor b) Topology with primary home distributor and secondary home distributor Figure 3 — eierarchical topology of a generic cabling system in support of fCT and/or BCT applications SIST EN 50173-4:2018
EN 50173-4:2018 (E) 16 4.4 Cabling subsystems 4.4.1 Home cabling subsystems 4.4.1.1 Primary home cabling subsystem The primary home cabling subsystem extends from the PHD to the application outlet. When an SHD is used, the primary home cabling subsystem extends from the PHD to the secondary home cabling subsystem. The subsystem includes: a) the primary home cables; b) the mechanical termination of the primary home cables at the SHD or application outlet as appropriate; c) the mechanical termination of the primary home cables together with associated patch cords and/or jumpers at the PHD; d) the TO or BO (where a SHD is not used). Although equipment cords are used to connect the transmission equipment to the primary home cabling subsystem, they are not considered part of the primary home cabling subsystem because they can be application-specific. The home cabling subsystem does not include the interface to the network access cabling at the PHD. 4.4.1.2 Secondary home cabling subsystem The secondary home cabling subsystem extends from a SHD to the application outlet. The subsystem includes: a) the secondary home cables; b) the mechanical termination of the secondary home cables at the TO or BO; c) the mechanical termination of the secondary home cables together with associated patch cords and/or jumpers at the SHD; d) the TO or BO. Although equipment cords are used to connect the transmission equipment to the secondary home cabling subsystem, they are not considered part of the secondary home cabling subsystem because can be application-specific. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 17 4.4.2 Associated cabling subsystems 4.4.2.1 Network access cabling subsystem Network access cabling is presented at the PHD as shown in Figure 4.
NOTE The dotted elements represent the boundaries of functional elements and not the enclosure that contains the functional elements. Figure 4 — Examples of interconnection of primary home and network access cabling As shown in Figure 5 the network access cabling: — in premises containing a single home - provides the connection between the external network interfaces (ENI, public or private) and the PHD; — in premises containing multiple homes - can, subject to national or local regulation, also provide the connection between: a) the individual homes in the same premises; b) the premises external network interfaces (public or private) and the PHD in each home. SIST EN 50173-4:2018
EN 50173-4:2018 (E) 18
Figure 5 — Network access cabling in premises containing one or more homes The only interfaces to network access cabling within a home shall be those serving that home. When used to provide a direct connection between the generic cabling system and an ex
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