EN 50173-6:2013

SLOVENSKI STANDARD
01-december-2013
,QIRUPDFLMVNDWHKQRORJLMD*HQHULþQLNDEHOVNLVLVWHPLGHO3RUD]GHOMHQH
VWRULWYHY]JUDGEDK
Information technology - Generic cabling systems - Part 6: Distributed building services
Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 6:
Verteilte Gebäudedienste
Technologies de l’information - Systèmes de câblage générique - Partie 6 : Services
distribués dans les bâtiments
Ta slovenski standard je istoveten z: EN 50173-6:2013
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50173-6
NORME EUROPÉENNE
September 2013
EUROPÄISCHE NORM
ICS 35.110
English version
Information technology -
Generic cabling systems -
Part 6: Distributed building services

Technologies de l’information -  Informationstechnik -
Systèmes de câblage générique - Anwendungsneutrale
Partie 6 : Services distribués dans les Kommunikationskabelanlagen -
bâtiments Teil 6: Verteilte Gebäudedienste

This European Standard was approved by CENELEC on 2013-07-22. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50173-6:2013 E
Contents
Foreword . 4
Introduction . 4
1 Scope and conformance . 9
1.1 Scope . 9
1.2 Conformance . 9
2 Normative references . 10
3 Terms, definitions and abbreviations . 10
3.1 Terms and definitions . 10
3.2 Abbreviations . 11
4 Structure of the generic cabling for distributed building services. 11
4.1 General . 11
4.2 Functional elements . 12
4.3 General structure and hierarchy . 12
4.4 Cabling subsystems . 15
4.5 Accommodation of functional elements . 16
4.6 Interfaces . 18
4.7 Dimensioning and configuring . 19
4.8 Relevant building services . 23
5 Channel performance for generic cabling for distributed building services . 23
5.1 General . 23
5.2 Environmental performance. 24
5.3 Transmission performance . 24
6 Reference implementations for distributed building services . 25
6.1 General . 25
6.2 Balanced cabling . 25
6.3 Optical fibre backbone cabling . 30
7 Cable requirements . 30
7.1 General . 30
7.2 Balanced cables . 30
7.3 Optical fibre cables . 30
8 Connecting hardware requirements . 30
8.1 General requirements . 30
8.2 Connecting hardware for balanced cabling . 31
8.3 Connecting hardware for optical fibre cabling . 31
9 Requirements for cords and jumpers . 31
9.1 Jumpers . 31
9.2 Balanced cords . 31
9.3 Optical fibre cords . 32
Annex A (normative) Link performance limits . 33
A.1 General . 33
A.2 Balanced cabling . 33
A.3 Optical fibre cabling . 33
Annex B (informative) Services and applications . 34
B.1 Introduction . 34
B.2 Telecommunications – Wireless networks . 34
B.3 Energy management . 35
B.4 Environmental control . 36
B.5 Personnel management. 36
B.6 Personal information and alarms . 37
Annex C (informative) Overlay . 38

– 3 – EN 50173-6:2013
C.1 Functional elements . 38
C.2 General structure and hierarchy . 38
Annex D (informative) Optical fibre within the Type B area feeder cabling subsystem . 39
D.1 Overview . 39
D.2 Implementation recommendations . 39

Figures
Figure 1 — Schematic relationship between EN 50173 series and other relevant standards . 7
Figure 2  Structure of Type A generic cabling . 13
Figure 3  Hierarchical structure of Type A generic cabling . 13
Figure 4  Structure of Type B generic cabling . 14
Figure 5  Hierarchical structure of Type B generic cabling . 14
Figure 6  Accommodation of functional elements . 17
Figure 7  Accommodation of TEs (Type B generic cabling) . 17
Figure 8  Test and equipment interfaces (Type A generic cabling) . 18
Figure 9  Test and equipment interfaces (Type B generic cabling) . 18
Figure 10  Example of a Type A generic cabling system with combined BD and SD . 20
Figure 11  Connection of functional elements providing redundancy for Type A generic cabling . 20
Figure 12  Transmission performance of a service distribution channel . 23
Figure 13  Example of a system showing the location of cabling interfaces . 24
Figure 14  Service distribution cabling models . 27
Figure A.1  Link options . 33
Figure B.1  Wireless application coverage area grid . 35
Figure D.1  Combined optical fibre backbone/horizontal channels . 40

Tables
Table 1 — Contextual relationship between EN 50173 series and other standards relevant for information
technology cabling systems . 8
Table 2 – Maximum channel lengths for Type A reference implementations . 21
Table 3 – Maximum channel lengths for Type B reference implementations . 22
Table 4 – Service distribution channel formulae . 29
Table B.1 – Supported wireless applications. 34
Table B.2 – Areas served by SCPs . 36
Table D.1 - Channel length formulae for optical fibre cabling . 41

Foreword
This document (EN 50173-6:2013) has been prepared by CLC/TC 215, “Electrotechnical aspects of
telecommunication equipment”.
The following dates are fixed:
(dop) 2014-07-22
• latest date by which this document
has to be implemented at national
level by publication of an identical
national
standard or by endorsement
• latest date by which the national (dow) 2016-07-22
standards conflicting with this
document have to be withdrawn
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.
Therefore, CLC/TC 215 has established relevant European Standards which address the specific
requirements of these premises. In order to point out the commonalities of these cabling design standards,
these European Standards are published as individual parts of the EN 50173 series, thus also
acknowledging that standards users recognise the designation “EN 50173” as a synonym for generic cabling
design.
At the time of publication of this European Standard, EN 50173 series comprises the following standards:
Information technology – Generic cabling systems – Part 1: General requirements
 EN 50173-1
Information technology – Generic cabling systems – Part 2: Office premises
 EN 50173-2
Information technology – Generic cabling systems – Part 3: Industrial premises
 EN 50173-3
Information technology – Generic cabling systems – Part 4: Homes
 EN 50173-4
Information technology – Generic cabling systems – Part 5: Data centres
 EN 50173-5
Information technology – Generic cabling systems – Part 6: Distributed building services
 EN 50173-6
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.

– 5 – EN 50173-6:2013
Introduction
The importance of the information technology cabling infrastructure is similar to that of other utilities such as
heating, lighting and electricity supplies. As with other utilities, interruptions to service can have serious
impact. Poor quality of service due to lack of planning, use of inappropriate components, incorrect
installation, poor administration or inadequate support can threaten an organisation's effectiveness.
Historically, the cabling within premises comprised both application-specific and multipurpose networks.
Standards within the EN 50173 series have enabled a controlled migration to generic cabling (with an
associated reduction in the use of application-specific cabling) and supported the development of high data
rate applications based upon defined cabling models.
This European Standard, EN 50173-6, specifies generic cabling that supports a wide range of
communication services within premises that comprise single or multiple buildings on a campus. It has been
prepared to reflect the increasing use of generic cabling in support of non-user specific services, many of
which require the use of remote powered devices including:
I) telecommunications, e.g. wireless access points;
II) energy management, e.g. lighting, power distribution, incoming utility metering;
III) environmental control, e.g. temperature, humidity;
IV) personnel management, e.g. access control, cameras, passive infra-red (PIR) detectors, time and
attendance monitoring, electronic signage, audio-visual (AV) projectors;
V) personal information and alarms, e.g. paging, patient monitoring, nurse call, infant security.
The distribution of these services is provided:
i) using the balanced cabling channel Classes of EN 50173-2 and the all-silica optical fibre cabling channel
Classes of EN 50173-1;
ii) to locations other than those specified by premises-specific standards in the EN 50173 series either as a
stand-alone structure and configuration or as an overlay to an EN 50173 structure and configuration.
This European Standard is not intended to replace the application of other premises-specific standards in
EN 50173 series but has been prepared in recognition of the fact that, although certain functional elements
of service distribution cabling may be co-located with those of other generic cabling infrastructures, service
distribution cabling may be:
• specified, installed and operated by different entities than those responsible for other generic cabling
infrastructures that may be installed within the premises;
• specified and installed at a different time than other generic cabling infrastructures that may be installed
within the premises.
This European Standard provides:
a) users with an application independent generic cabling system and an open market for cabling
components;
b) users with a flexible cabling scheme such that modifications are both easy and economical;
c) building professionals (for example, architects) with guidance allowing the accommodation of cabling
before specific requirements are known; i.e. in the initial planning either for construction or
refurbishment;
d) industry and standardization bodies with a cabling system which supports current products and provides
a basis for future product development and applications standardization.

This European Standard specifies multi-vendor cabling, and is related to:
- standards for cabling components developed by Technical Committees of CENELEC and/or IEC;
- standards for the quality assurance and installation of information technology cabling (EN 50174 series)
and testing of installed cabling (EN 50346);
- applications developed by the Technical Committees of IEC (including the subcommittees of
ISO/IEC JTC 1) and study groups of ITU-T.
The applications listed in EN 50173-1:2011, Annex F, have been analysed to determine the requirements for
a generic cabling system. These requirements, together with statistics concerning premises geography from
different countries and the models described in Clause 6, have been used to develop the requirements for
cabling components and to stipulate their arrangement into cabling systems.
As a result, generic cabling defined within this European Standard is targeted at, but not limited to, office
premises. It is anticipated that the generic cabling system meeting the minimum requirements of this
European Standard will have a life expectancy in excess of ten years.
Figure 1 and Table 1 show the schematic and contextual relationships between the standards produced by
CLC/TC 215 for information technology cabling, namely:
1) this part and other parts of EN 50173 series;
2) application dependent cabling design (e.g. EN 50098 series);
3) installation (EN 50174 series);
4) testing of installed cabling (EN 50346);
5) equipotential bonding requirements (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.

– 7 – EN 50173-6:2013
EENN 50098 50098--1:1: C Cususttoommerer pr preemmiisseses EENN 50173 50173--2:2: I Innfforormmatatiion ton teecchnolhnologogyy::
ccablabliing fng foror i infnforormmatatiion ton tecechhnolnologogyy -- GGenereneriicc c cablabliing ng -- OOffffiicce pre preemmiisseses
IISSDDNN b baasisic ac acceccessss
EENN 50173 50173--3:3: I Innfforormmatatiion ton teecchnolhnologogyy::
EENN 50098 50098--2:2: C Cususttoommerer pr preemmiisseses GGenereneriicc c cablabliing ng -- IIndusndusttrriialal pr prememiisseess
EENN 50173 50173--1:1: I Innfforormmatatiion ton teecchnolhnologogyy::
ccablabliing fng foror i infnforormmatatiion ton tecechhnolnologogyy --
EENN 50173 50173--4:4: I Innfforormmatatiion ton teecchnolhnologogyy:: GGenereneriicc c cablabliing ng -- GGenereneralal r requiequirrememententss
2048 2048 kkbbiit/st/s IISSDDNN pr priimmararyy a accccesesss and and
GGenereneriicc c cablabliing ng -- HHomomeses
lleaseased led liine netne netwwororkk i intntererffacacee
EENN 50173 50173--5:5: I Innfforormmatatiion ton teecchnolhnologogyy::
GGenereneriicc c cablabliing ng -- DDatata ca cententrreses
EENN 50173 50173--6:6: I Innfforormmatatiion ton teecchnolhnologogyy::
GGenereneriicc c cablabliing ng –– DDiissttrriibutbuteed buid builldiding ng
sserervviicceses
EENN 50174 50174--1:1: I Innfforormmatatiion ton teecchnolhnologogyy.
CCablabliing ing insnsttalalllatatiion on -- SSpecpeciiffiiccatatiion and on and
qualqualiittyy as asssururancancee
EENN 50174 50174--2:2: I Innfforormmatatiion ton teecchnolhnologogyy. EENN 50310: 50310: A Applppliiccatatiion ofon of e equiquipotpotententiialal
CCablabliing ing insnsttalalllatatiion on -- IInsnsttalalllatatiion on bondibonding and earng and eartthihing ing in buin builldidingsngs w wiitth h
plplannianning and prng and pracacttiicceses i insnsiide buide builldidingsngs iinfnforormmatatiion ton tecechhnolnologogyy equi equipmpmentent
EENN 50174 50174--3:3: I Innfforormmatatiion ton teecchnolhnologogyy.
CCablabliing ing insnsttalalllatatiion on -- IInsnsttalalllatatiion on
plplannianning and prng and pracacttiicceses out outssiide buide buillddiingsngs
EENN 50346: 50346: I Innfforormmatatiion ton teecchhnolnologogyy.
CCablabliing ing insnsttalalllatatiion on --
TTesesttiing ofng of i insnsttalallled ced cablabliingng

NOTE For the purposes of the standards in EN 50173 and EN 50174 series, the term “information technology” includes
ICT, BCT and CCCB applications.
Figure 1 — Schematic relationship between EN 50173 series and other relevant standards

Table 1 — Contextual relationship between EN 50173 series and
other standards relevant for information technology cabling systems
Building design Generic cabling Specification Installation phase Operation phase
phase design phase phase
EN 50310 EN 50173 series EN 50174-1 EN 50174-1
except
EN 50173-4
6. Bonding 4: Structure
4 Requirements for 4: Requirements for
networks specifying installa- specifying
5: Channel
tions of information installations of
performance
technology cabling
information
technology cabling
7: Cable
5: Requirements for
requirements
installers of infor-
mation technology
8: Connecting
cabling
hardware
requirements
9: Requirements for
cords and jumpers
A: Link
performance limits
Planning phase
and
EN 50173-4 EN 50174-2 EN 50174-2
4 and 5: Structure 4: Requirements for 5: Requirements for
planning the installation of
6: Channel
installations of information
performance
information technology cabling
technology cabling
8: Cable
6: Segregation of
requirements
6: Segregation of metallic information
metallic information technology cabling
9: Connecting
technology cabling and mains power
hardware
and mains power cabling
requirements
cabling
8: Office
10: Requirements
7: Electricity (commercial)
for cords and
distribution systems premises
jumpers
and lightning
9: Industrial
A: Link
protection
premises
performance limits
10: Homes
11: Data centres
and and
EN 50174-3 EN 50174-3
and and
(for equipotential (for equipotential
bonding) bonding)
EN 50310 EN 50310
and
EN 50346
4: General
requirements
5: Test parameters
for balanced
cabling
6: Test parameters
for optical fibre
cabling
– 9 – EN 50173-6:2013
1 Scope and conformance
1.1 Scope
This European Standard specifies generic cabling that supports a wide range of communication services
within premises that comprise single or multiple buildings on a campus. It addresses the increasing use of
generic cabling in support of non-user specific services, many of which require the use of remote powered
devices including telecommunications, energy management, environmental control, personnel management,
personal information and alarms.
The distribution of these services is provided to locations (e.g. for wireless access points, remote powered
devices and building management systems) other than those specified in premises-specific standards in
EN 50173 series by means of either:
a) an overlay structure and configuration to that specified within EN 50173 series, or
b) a stand-alone structure and configuration.
It covers balanced cabling and optical fibre cabling.
This European Standard is based upon and references the requirements of EN 50173-1, and in addition
specifies implementation options.
Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC)
requirements are outside the scope of this European Standard and are covered by other standards and
regulations. However, information given in this European Standard may be of assistance in meeting these
standards and regulations.
1.2 Conformance
For a cabling system to conform to this European Standard:
a) the structure and configuration shall conform to the requirements of Clause 4;
b) the interfaces to the cabling at the service outlets (SO) and service concentration points (SCP) shall
conform to the requirements of Clause 8 with respect to mating interfaces;
c) connecting hardware at other places in the cabling structure shall meet the requirements specified in
Clause 8;
d) the performance of channels shall conform to 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 Class of
Clause 5 is met;
2) attachment of appropriate components to a 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) 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.
e) local regulations concerning safety shall be met.
In addition, the requirements of EN 50174 series shall be met.
The test parameters to be measured and the sampling levels 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.
The treatment of measured results that fail to meet the requirements of this subclause, or lie within the
relevant measurement accuracy, shall be clearly documented within a quality plan as described in
EN 50174-1.
Test methods to verify conformance with the channel and link requirements of Clause 5 and Annex A
respectively are specified in EN 50346.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 50173-1:2011, 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 61076-3-106:2006, 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 61076-3-106:2006)
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 and the following
apply.
NOTE EN 50173-1:2011, 3.1.5, defines “application” as “system, with its associated transmission method that is
supported by telecommunications cabling”.
3.1.1
area feeder cable
cable connecting the service distributor to the service concentration point(s) of Type B generic cabling
3.1.2
building service
non-user specific service within premises including, but not restricted to, building automation, security,
access control, building management, wireless access points, information displays and alarm systems
3.1.3
distributed building service
building service provided to locations additional to those specified in premises-specific standards in
EN 50173 series
– 11 – EN 50173-6:2013
3.1.4
network conversion interface
passive or active device allowing the attachment of cabling of different network topologies to a service
concentration point
3.1.5
service area cord
cord connecting the service outlet to the terminal equipment
3.1.6
service concentration point
connection point in the Type A generic cabling between a service distributor and a service outlet or a
connection point offering connections to terminal equipment at the end of Type B generic cabling
3.1.7
service concentration point cable
cable between a service concentration point and a service outlet
3.1.8
service distribution cable
cable connecting the service distributor to the service outlet(s) or service concentration point(s) of Type A
cabling
3.1.9
service outlet
fixed connecting device where the service distribution cabling terminates
3.2 Abbreviations
For the purposes of this document, the abbreviations given in EN 50173-1 and the following apply.
AV Audio-visual
OE EQP Opto-electronic equipment
PIR Passive Infrared
SCP Service Concentration Point
SD Service Distributor
SO Service Outlet
TE Terminal Equipment
WAP Wireless Access Point
4 Structure of the generic cabling for distributed building services
4.1 General
Clause 4 identifies the functional elements of generic cabling, describes how they are connected together to
form subsystems and identifies the interfaces at which application-specific components are connected.
Channels, created by connecting application-specific cabling components to the generic cabling, are used to
support applications (see EN 50173-1:2011, Annex F).
In general, all functional elements, subsystems and interfaces from the campus distributor to the floor
distributor as described in EN 50173-1 are applicable.

4.2 Functional elements
4.2.1 Stand-alone structure
In addition to the distributors specified in EN 50173-1, this European Standard specifies two implementations
of generic cabling for distributed building services. This European Standard enables:
a) Type A generic cabling to the SO;
b) Type B generic cabling to the SCP, thereby providing the opportunity for:
 application-specific cabling to be installed between the SCP and terminal equipment;
 application-specific equipment to be connected at the SCP.
The specification of application-specific cabling and equipment that may be connected to the SCP is outside
the scope of the European Standard.
Type A generic cabling uses the following functional elements and interfaces:
1) service distributor (SD);
2) service distribution cable;
3) service concentration point (SCP);
4) service concentration point cable (SCP cable);
5) service outlet (SO).
For Type B generic cabling uses the following functional elements and interfaces:
i) service distributor (SD);
ii) area feeder cable;
iii) service concentration point (SCP).
Groups of these functional elements are connected together to form cabling subsystems (see 4.3).
4.2.2 Overlay structure
The structure of Type A and Type B generic cabling in association with generic cabling of other standards in
EN 50173 series is described in Annex C.
4.3 General structure and hierarchy
4.3.1 Type A generic cabling
4.3.1.1 Stand-alone structure
Type A generic cabling systems contain up to three cabling subsystems: campus backbone, building
backbone and service distribution 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 cabling subsystems is
described in 4.4.1, 4.4.2 and 4.4.3. The functional elements of the cabling subsystems are interconnected to
form a basic hierarchical topology as shown in Figure 3.

– 13 – EN 50173-6:2013
Where the functions of distributors are combined (see 4.7.2.1), the intermediate cabling subsystem(s) are not
required.
Connections between cabling subsystems are either active, requiring application-specific equipment, or
passive. Connection to application-specific equipment adopts either an interconnect or a cross-connect
approach (see EN 50173-1). Passive connections between cabling subsystems adopt either a cross-connect
approach, by way of either patch cords or jumpers, or an interconnect approach.
The SO shall be connecting hardware in accordance with Clause 8.
CDCD BDBD SDSD SCSCPP
SOSO
TE
TE
CCamampupuss SSerervviicce die dissttrriibutbutiion con cablabliing sng subsubsyyssttemem
BBuiuilldiding ng SSeerrvivicece
bacbackkbobone ne
bacbackkbobone ne ararea cea cablabliingng
ccablabliingng
ccablabliingng
ssubsubsyyssttemem
ssubsubsyyssttemem
GGenereneriicc c cablabliing sng syyssttemem

Figure 2  Structure of Type A generic cabling

CDCD
CCamampupuss bac backkbone bone
ccablabliing sng subsubsyyssttemem
BDBD BDBD
BBuiuilldiding bacng backkbbone one
ccablabliing sng subsubsyyssttemem
SDSD SDSD SDSD SDSD
SSerervviicce die dissttrriibutbutiionon
ccablabliing sng subsubsyyssttemem
SSCPCP SSCPCP SSCPCP SSCPCP
SOSO SOSO SOSO SOSO SOSO SOSO SOSO SOSO SOSO SOSO
optoptiionalonal c cablableses

Figure 3  Hierarchical structure of Type A generic cabling
4.3.1.2 Overlay structure
The structure of Type A generic cabling in association with generic cabling of other standards in EN 50173
series is described in Annex C.

4.3.2 Type B generic cabling
4.3.2.1 Stand-alone structure
Type B generic cabling systems contain up to three cabling subsystems: campus backbone, building
backbone and area feeder cabling. The cabling subsystems are connected together to create a generic
cabling system with a structure as shown in Figure 4. The composition of the cabling subsystems is
described in 4.4.1, 4.4.2 and 4.4.4. The functional elements of the cabling subsystems are interconnected to
form a basic hierarchical topology as shown in Figure 5.
TTEE c coonnecnnecttiion on
TTEE
ccononffiigurgured ased as
CDCD BDBD SDSD SCSCPP
plplugug--ssocockketet
TTEE
TTEE c coonnecnnecttiion on
didirrececttllyy at atttacached thed to o
ccablabliing ng
TTEE
CCamampupuss AArrea fea feeedereder c cablabliing ng AApplppliiccatatiionon--spspeeciciffiic c
BBuiuilldiding ng
bacbackkbobone ne ssubsubsyyssttemem ccablabliingng
bacbackkbobone ne
ccablabliingng ((outoutssiide tde the she sccope oope off t thihiss
ccablabliingng
ssubsubsyyssttemem ssttandarandard)d)
ssubsubsyyssttemem
GGenereneriicc c cablabliing sng syyssttemem

Figure 4  Structure of Type B generic cabling

CDCD
CCamampupuss bac backkbone bone
ccablabliing sng subsubsyyssttemem
BDBD BDBD
BBuiuilldiding bacng backkbbone one
ccablabliing sng subsubsyyssttemem
SDSD SDSD SDSD SDSD
AArrea fea feeedereder
ccablabliing sng subsubsyyssttemem
SSSCPCPCP SSSCPCPCP SSSCPCPCP SSSCPCPCP
optoptiionalonal c cablableses

Figure 5  Hierarchical structure of Type B generic cabling
Where the functions of distributors are combined (see 4.7.2.1), the intermediate cabling subsystem(s) are not
required.
– 15 – EN 50173-6:2013
Connections between cabling subsystems are either active, requiring application-specific equipment, or
passive. Connection to application-specific equipment adopts either an interconnect or a cross-connect
approach (see EN 50173-1). Passive connections between cabling subsystems adopt either a cross-connect
approach, by way of either patch cords or jumpers, or an interconnect approach.
4.3.2.2 Overlay structure
The structure of Type B generic cabling in association with generic cabling of other standards in EN 50173
series is described in Annex C.
4.4 Cabling subsystems
4.4.1 Campus backbone cabling subsystem
See EN 50173-1.
4.4.2 Building backbone cabling subsystem
See EN 50173-1.
4.4.3 Service distribution cabling subsystem (Type A generic cabling)
The service distribution cabling subsystem extends from an SD to the SO(s) connected to it. The subsystem
includes:
a) the service distribution cables;
b) the mechanical termination of the service distribution cables at the SO and the SD together with
associated patch cords and/or jumpers at the SD;
c) (an) SCP(s) (optional);
d) the SCP cable(s).
Although service area and equipment cords are used to connect terminal and transmission equipment,
respectively, to the cabling subsystem, they are not considered part of the cabling subsystem because they
are application-specific. Service distribution cables shall be continuous from the SD to the SO(s) unless an
SCP is installed (see 4.7.6).
4.4.4 Area feeder cabling subsystem (Type B generic cabling)
The area feeder cabling subsystem extends from an SD to the SCP(s) connected to it. The subsystem
includes:
a) the area feeder cables;
b) the mechanical termination of the service distribution cables at the SCP and the SD together with
associated patch cords and/or jumpers at the SD;
c) SCP(s).
Although equipment cords are used to connect transmission equipment to the cabling subsystem, they are
not considered part of the cabling subsystem because they are application-specific. Area feeder cables shall
be continuous from the service distributor to the SCP(s).

4.4.5 Design objectives
4.4.5.1 Service distribution cabling (Type A generic cabling)
Service distribution cabling should be designed to support the broadest set of existing and emerging
applications within the environmental conditions defined in Clause 5 and therefore provide the longest
operational life. This will minimise disruption and the high cost of re-cabling.
Pathways shall be selected and pathway systems shall be installed in accordance with EN 50174 series to
support the predicted quantity of SCPs and SOs taking into account predicted growth in the number and type
of services to be supported by the cabling. This will minimise the disruption and cost of cable installation to
those locations.
Cabling should be installed to support the predicted quantity of SCPs and SOs.
See Annex B for further information regarding the distribution and location of SCP and SOs for different
services.
4.4.5.2 Area feeder cabling subsystem (Type B generic cabling)
Area feeder cabling should be designed to support the broadest set of existing and emerging applications
within the environmental conditions defined in Clause 5 and therefore provide the longest operational life.
This will minimise disruption and the high cost of re-cabling.
Pathways shall be selected and pathway systems shall be installed in accordance with EN 50174 series to
support the predicted quantity of SCPs taking into account predicted growth in the number and type of
services to be supported by the cabling. This will minimise the disruption and cost of cable installation to
those locations.
Cabling should be installed to support the predicted quantity of SCPs.
See Annex B for further information regarding the distribution and location of SCP for different services.
4.4.5.3 Backbone cabling
See EN 50173-1.
4.5 Accommodation of functional elements
4.5.1 General
Figure 6 shows an example of how the functional elements are accommodated in a building.

– 17 – EN 50173-6:2013
Telecommunications room
SCP Type B
SD
SCP
Type A
SO
SD
Campus
backbone
BEF cable
Type A
SO
SD
Equipment room CD/BD
External network
Figure 6  Accommodation of functional elements
4.5.2 Accommodation of SOs
4.5.2.1 Type A generic cabling
SOs are located in the service area, depending on the design of the building.
4.5.2.2 Type B generic cabling
Figure 7 shows examples of how terminal equipment may be interconnected to the network conversion
interface installed at the SCP.
TTEE
TTEE TTrree ee
TTEE
andand
brbrancanchh
NNetetwwororkk c convonvererssiion ion intntererffaaccee
TTEE
TTEE TTEE
StStaarr
TTEE
BuBuss
SDSD SCSCPP TTEE TTEE TTEE TTEE
TTEE
LoopLoop
TTEE
Figure 7  Accommodation of TEs (Type B generic cabling)
4.5.3 Accommodation of SCPs
4.5.3.1 Type A generic cabling
An SCP in generic cabling shall not be used to insert transmission equipme
...