SIST-TP CLC/TR 50173-99-2:2011
(Main)Information technology - Implementation of BCT applications using cabling in accordance with EN 50173-4
Information technology - Implementation of BCT applications using cabling in accordance with EN 50173-4
This Technical Report describes the following:
a) the functional elements and structure of the cabling, external to homes, supporting community
antenna television (CATV) and master antenna television/satellite master antenna television
(MATV/SMATV) networks in accordance with EN 60728-1;
b) the location and accommodation of the home network interface (HNI) in accordance with EN 60728-1;
c) requirements for additional cabling performance requirements (i.e. insertion loss slope between
47 MHz and 862 MHz) and necessary amendments of the reference implementations of generic
cabling within the home in accordance with EN 50173-4 in order to support the CATV, MATV/SMATV
networks in accordance with EN 60728-1.
Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC)
requirements are outside the scope of this Technical Report and are covered by standards and
regulations. However information given in this Technical Report may be of assistance in meeting these
standards and regulations.
Informationstechnik - Realisierung von RuK-Netzanwendungen mit Verkabelung nach EN 50173-4
Technologies de l'information - Mise en oeuvre des applications BCT utilisant un câblage réalisé selon la EN 50173-4
Informacijska tehnologija - Izvedba kabelskih aplikacij BCT v skladu z EN 50173-4
To tehnično poročilo opisuje:
a) operativne elemente in strukture polaganja kablov, zunanjih do hišnih, ki podpirajo skupnostna antenska televizijska (CATV) in glavna antenska televizijska/satelitska glavna antenska televizijska (MATV/SMATV) omrežja v skladu z EN 60728-1,
b) lokacijo in namestitev domačega omrežnega vmesnika (HNI) v skladu z EN 60728-1,
c) zahteve za dodatne delovne zahteve polaganja kablov (tj. notranje izgube zaradi nagiba med 47 MHz 862 MHz) in potrebne popravke referenčne izvedbe univerzalnega polaganja kablov znotraj domov v skladu z EN 50173-4, za podpiranje CATV, MATV/SMATV omrežja v skladu z EN 60728-1.
Varnostne zahteve (električna varnost in zaščita, optična moč, ogenj itd.) in zahteve elektromagnetne združljivosti (EMC) so zunaj področja uporabe tega tehničnega poročila in so zajete z drugimi standardi in predpisi. Vendar so lahko informacije, podane v tem tehničnem poročilu, opora pri izpolnjevanju teh standardov in predpisov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST-TP CLC/TR 50173-99-2:2011
01-december-2011
Informacijska tehnologija - Izvedba kabelskih aplikacij BCT v skladu z EN 50173-4
Information technology - Implementation of BCT applications using cabling in accordance
with EN 50173-4
Informationstechnik - Realisierung von RuK-Netzanwendungen mit Verkabelung nach
EN 50173-4
Technologies de l'information - Mise en oeuvre des applications BCT utilisant un câblage
réalisé selon la EN 50173-4
Ta slovenski standard je istoveten z: CLC/TR 50173-99-2:2010
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
SIST-TP CLC/TR 50173-99-2:2011 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST-TP CLC/TR 50173-99-2:2011
TECHNICAL REPORT
CLC/TR 50173-99-2
RAPPORT TECHNIQUE
March 2010
TECHNISCHER BERICHT
ICS 35.110
English version
Information technology -
Implementation of BCT applications using cabling
in accordance with EN 50173-4
Technologies de l'information - Informationstechnik -
Mise en oeuvre des applications Realisierung von RuK-Netzanwendungen
BCT utilisant un câblage réalisé mit Verkabelung nach EN 50173-4
selon la EN 50173-4
This Technical Report was approved by CENELEC on 2010-01-01.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 50173-99-2:2010 E
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Foreword
This Technical Report was prepared by the Technical Committee CENELEC TC 215, Electrotechnical
aspects of telecommunication equipment, in cooperation with experts from CENELEC TC 209/WG 4,
System performance requirements.
The text of the draft was submitted to vote and was approved by CENELEC as CLC/TR 50173-99-2 on
2010-01-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
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Contents
Introduction . 5
1 Scope . 5
2 Normative references . 6
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 8
4 Cabling structure . 8
4.1 General . 8
4.2 Functional elements of networks in accordance with EN 60728 . 9
4.3 Cabling subsystems of networks in accordance with EN 60728 . 9
4.4 Accommodation of functional elements .11
4.5 Interfaces .12
4.6 Dimensioning and configuring .13
5 Slope requirements .13
6 Reference implementations .15
6.1 Balanced cabling .15
6.2 Coaxial cabling .19
Annex A (informative) Example implementations of BCT applications .23
A.1 General .23
A.2 System components .24
A.3 Passive or active coaxial home networks .24
A.4 Home network with balanced type cables (Case A and Case B) .25
A.5 Amplifiers at the home distributor .27
Table 1 – Main functional elements of networks in accordance with EN 60728 series .9
Table 2 – Slope performance of balanced cabling in accordance with EN 50173-4. 14
Table 3 – Slope performance of coaxial cabling in accordance with EN 50173-4 . 14
Table 4 – Balanced BCT-B-L permanent link lengths for a range of cord lengths . 18
Table 5 – Balanced BCT-B-M permanent link lengths for a range of cord lengths . 19
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Table A.1 – Typical attenuation performance of splitters . 24
Table A.2 – Example of home network implementation with coaxial cabling (passive) from HNI1 to
SO 24
Table A.3 – Example of home network implementation with coaxial cabling (active) from HNI2 to
SO 25
Table A.4 – Example of home network implementation with balanced pair cables (active) from
HNI3 to coaxial TI (Case A) . 26
Table A.5 – Example of home network implementation with balanced pair cables (active) from
HNI3 to coaxial SO (Case B) . 26
Figure 1 – Structure of generic cabling for BCT applications (CATV) .9
Figure 2 – Structure of generic cabling for BCT applications (MATV/SMATV) . 10
Figure 3 – Examples of location of HNI for various home network types . 11
Figure 4 – Schematic of generic cabling for BCT applications according to EN 50173-4 . 12
Figure 5 – Slope interfaces (direct connection of HNI to BO) . 13
Figure 6 – Slope interfaces (HNI to BO via splitter/amplifier equipment) . 13
Figure 7 – Multi-stage slope compensation in homes containing SHDs . 15
Figure 8 – Home cabling configurations for BCT-B applications. 16
Figure 9 – Home cabling configurations for BCT-C applications . 20
Figure A.1 – Examples of home network implementation using coaxial or balanced cables . 23
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Introduction
EN 50173-4 specifies generic cabling in homes, installed to support one or more of the following groups
of applications and based upon balanced and coaxial cabling as appropriate:
a) Information and Communication Technologies (ICT);
b) Broadcast and Communication Technologies (BCT);
c) Command, Controls and Communications in Buildings (CCCB).
EN 50173-4 also provides requirements for backbone cabling subsystems within premises containing
multiple homes by reference to:
1) EN 50173-1 for cabling to support ICT applications;
2) standards of the EN 50083 and EN 60728 series to support BCT applications.
EN 50083 and EN 60728 standards deal with cable networks including equipment and associated
methods of measurement for headend reception, processing and distribution of television signals, sound
signals and their associated data signals and for processing, interfacing and transmitting all kinds of
signals for interactive services using all applicable transmission media including community antenna
television (CATV) and master antenna television/satellite master antenna television (MATV/SMATV)
networks.
This Technical Report describes the following:
– the functional elements and structure of the cabling, external to homes, supporting community
antenna television (CATV) and master antenna television/satellite master antenna television
(MATV/SMATV) networks in accordance with EN 60728-1;
– the location and accommodation of the home network interface (HNI) in accordance with EN 60728-1;
– requirements for additional cabling performance requirements (i.e. insertion loss slope between
47 MHz and 862 MHz) and necessary amendments of the reference implementations of generic
cabling within the home in accordance with EN 50173-4 in order to support the CATV, MATV/SMATV
networks in accordance with EN 60728-1.
1 Scope
This Technical Report describes the following:
a) the functional elements and structure of the cabling, external to homes, supporting community
antenna television (CATV) and master antenna television/satellite master antenna television
(MATV/SMATV) networks in accordance with EN 60728-1;
b) the location and accommodation of the home network interface (HNI) in accordance with EN 60728-1;
c) requirements for additional cabling performance requirements (i.e. insertion loss slope between
47 MHz and 862 MHz) and necessary amendments of the reference implementations of generic
cabling within the home in accordance with EN 50173-4 in order to support the CATV, MATV/SMATV
networks in accordance with EN 60728-1.
Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC)
requirements are outside the scope of this Technical Report and are covered by standards and
regulations. However information given in this Technical Report may be of assistance in meeting these
standards and regulations.
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2 Normative references
The following referenced documents are indispensable for the application 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.
EN 50173-1:2007 Information technology – Generic cabling systems – Part 1: General requirements
EN 50173-4 Information technology – Generic cabling systems – Part 4: Homes
EN 50174 series Information technology – Cabling installation
EN 60728-1:2008, Cable networks for television signals, sound signals and interactive services –
Part 1: System performance of forward paths (IEC 60728-1:2007)
EN 60728-1-1:2010, Cable networks for television signals, sound signals and interactive services –
Part 1-1: RF cabling for two way home networks (IEC 60728-1-1:2010)
EN 60728-5, Cable networks for television signals, sound signals and interactive services –
Part 5: Headend equipment (IEC 60728-5:2007)
EN 60728-11, Cable networks for television signals, sound signals and interactive services –
Part 11: Safety (IEC 60728-11:2005, modified)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this document the following definitions apply in addition to those of EN 50173-1 and
EN 50173-4.
3.1.1
branch feeder
feeder used for connecting a distribution point to a building network interface (BNI) or home network
interface (HNI), as appropriate
3.1.2
building network
network for transmission of television signal, sound signals and interactive services inside a multi-dwelling
building (excluding the home networks within the dwellings)
3.1.3
building network interface
interface between external network and the building network within a multi-dwelling building for the
network for the transmission of television signal, sound signals and interactive services
NOTE This point is also called “transfer point” or “external network interface”.
3.1.4
community antenna television
system which is designed to provide sound and television signals received by terrestrial, satellite
antennas or provided by locally generated sources to the outlets of a large group of buildings
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3.1.5
headend
equipment which is connected between receiving antennas or other signal sources and the remainder of
the cable networks, to process the signals to be distributed
NOTE The headend may, for example, comprise antenna amplifiers, frequency converters, combiners, separators and generators.
3.1.6
home network
RF cable network inside a single dwelling (one-family house or one unit of a multi-dwelling building) in the
SOHO (Small Offices Home Offices) environments or in the rooms of hotels, hospitals, etc.; the preferred
topology of this network is a star. This network carries television signals, sound signals and interactive
services up to the coaxial RF interface (input and/or output) of the terminal equipment. It may comprise
active equipment, passive equipment, cables and connectors
3.1.7
home network interface
interface for access to the network for transmission of television signal, sound signals and interactive
services inside a home (single dwelling)
3.1.8
hub headend
headend that distributes the signals provided by a super trunk feeder to two or more trunk feeders
3.1.9
local headend
headend which is connected direct to the system trunk feeders or to a short-haul trunk feeder
replacement link
3.1.10
master antenna television system
system which is designed to provide sound and television signals received by terrestrial antennas to the
outlets of a building or a group of buildings
3.1.11
remote headend
headend from which signals are delivered to a local headend via a long-distance terrestrial link
3.1.12
satellite master antenna television system
system which is designed to provide sound and television signals received by satellite to the outlets of a
building or a group of buildings
3.1.13
slope
difference in gain or attenuation at 47 MHz and 862MHz between any two points in a system
NOTE The slope sign is considered:
a) negative when the attenuation increases with frequency (cables) or the gain (amplifiers) decreases with frequency;
b) positive when the gain (amplifiers) increases with frequency (compensating slope).
3.1.14
spur feeder
feeder to which splitters, subscriber taps, or looped system outlets are connected
3.1.15
subscriber feeder
feeder connecting a subscriber tap to a system outlet or, where the latter is not used, directly to the
subscriber equipment
NOTE A subscriber feeder may include filters and balun transformers.
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3.1.16
supertrunk feeder
connects only between headends or between a headend and the first distribution point
3.1.17
system outlet (SO)
synonymous with the broadcast outlet (BO) interface of EN 50173-4 (except where a balun is installed
between a balanced cabling BO to provide a coaxial interface to the receiver, in which case the SO is
defined at the coaxial interface of the balun)
3.1.18
trunk feeder
feeder used for the transmission of signals between a headend and a distribution point or between
distribution points
3.2 Abbreviations
For the purposes of this document the following abbreviations apply in addition to those of EN 50173-1
and EN 50173-4.
B Balun
BN Building Network
BNI Building Network Interface
BO Broadcast Outlet
CATV Community Antenna Television
DP Distribution Points
HCL Home Cabling Link
HN Home Network
HNI Home Network Interface
MATV Master Antenna Television
SMATV Satellite Master Antenna Television
SO System Outlet
4 Cabling structure
4.1 General
This document describes implementations of generic cabling in homes in accordance with EN 50173-4
and their connection to external cabling in order to support the BCT applications of Annex F of EN 50173-
1 and in accordance with the EN 60728 series of standards.
The delivery of BCT applications to support CATV or MATV/SMATV networks in accordance with the
EN 60728 series of standards to the home, independent of the premises that accommodate the home, is
described in terms of:
a) the functional elements required;
b) the cabling subsystems used to provide connections between the functional elements;
c) the interface (HNI) at which the cabling in accordance with EN 50173-4 is connected;
d) any additional application-specific functional elements within the home.
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4.2 Functional elements of networks in accordance with EN 60728
EN 60728-1 describes the functional elements to support BCT applications in the case of CATV or
MATV/SMATV cable networks and includes the main functional elements described in Table 1.
Table 1 – Main functional elements of networks in accordance with EN 60728 series
CATV networks MATV/SMATV networks
Remote Headend Headend
Local headend
Hub headend
Distribution point (DP)
Building network interface (BNI) Building network interface (BNI)
Floor distributor Floor distributor
Home network interface (HNI) Home network interface (HNI)
System outlet (SO) System outlet (SO)
NOTE The BNI and floor distributor are only relevant in premises containing multiple
homes and within which there is a defined building cabling subsystem, separate from
that of the home
4.3 Cabling subsystems of networks in accordance with EN 60728
4.3.1 General
EN 60728-1 describes the interconnection of the functional elements as shown in schematic form in
Figure 1 for CATV cable networks and in Figure 2 for MATV/SMATV cable networks.
Building network
External network Home network
Remote Local Hub
DP BNI FD HNI SO
headend headend headend
Super trunk Super trunk Trunk feeder Branch feeder Spur feeder Subscribers’
feeder feeder feeder
Building cabling Home cabling
subsystem
subsystems
External cabling subsystems
Figure 1 – Structure of generic cabling for BCT applications (CATV)
External network Building network Home network
Antenna
Headend BNI FD HNI SO
Branch feeder Spur feeder Subscribers’
feeder
External cabling subsystem Home cabling
Building cabling
subsystem
subsystems
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Figure 2 – Structure of generic cabling for BCT applications (MATV/SMATV)
4.3.2 External cabling subsystems
For CATV cable networks the signals received by remote and/or local headends are delivered through
super trunk feeder cables to hub headends. The signals are then subdivided and delivered to distribution
points (DPs) via trunk feeder cables. A branch feeder cable connects each home network interface (HNI)
or building network interface (BNI) (in the case of multi dwelling premises) to a DP.
For MATV/SMATV cable networks the signals received by the antenna system are fed to the headend. A
branch feeder cable connects each home network interface (HNI) or building network interface (BNI) (in
the case of multi dwelling premises) to the headend.
4.3.3 Building backbone subsystem
Where the premises served by the external cabling subsystems accommodate multiple homes, the BNI is
connected to the HNI either via:
a) a subscriber feeder cable;
b) a spur feeder cable to a floor distributor and then a subscriber feeder cable.
4.3.4 Home cabling subsystem
The signals delivered at the HNI are fed to the terminal equipment connected to the system outlet (SO)
through the home network comprising cabling and optional splitter/amplifier equipment.
The home cabling subsystem has different configurations depending on the extension and on the
applications made available at the home premises (see Figure 3). Various types of home networking for
home premises are described in EN 60728-1-1.
This technical report describes the delivery of the signals from the HNI to the SO using cabling in
accordance with EN 50173-4.
NOTE The home cabling subsystem defined and described in EN 50173-4 forms part of the home cabling subsystem as shown in
Figure 1 and Figure 2.
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Active home
network
SO
HNI
HNI
Passive home
network
Looped system
outlets
HNI
Single system
outlet
BNI
Figure 3 – Examples of location of HNI for various home network types
4.4 Accommodation of functional elements
4.4.1 Headend and antenna systems
The headend systems for CATV cable networks are typically located in equipment rooms that provide all
the facilities (space, power, environmental control etc.) for passive components, active devices and
connection to local and/or remote antenna systems.
The headend systems for MATV/SMATV cable networks may be located in a small room or a dedicated
space, where all the facilities (space, power, etc.) for passive components, active devices and connection
to the antenna system are provided. Examples of headend and requirements for headend equipment are
described in EN 60728-5.
The installation of equipment shall be in accordance with EN 60728-11.
4.4.2 Building network
Within multi dwelling premises, the BNI and FD are typically located in equipment rooms that should
provide all the facilities (space, power, environmental control etc.) for passive components and active
devices. Each equipment room should have direct access to the relevant cabling subsystems.
Where the functional elements share the same space as the BD and/or FDs of generic cabling systems in
accordance with the EN 50173 series of standards; the requirements for the accommodation of
distributors are specified in EN 50173-1.
Requirements for building entrance facilities are specified in the EN 50174 series of standards.
NOTE The location of BNI and building entrance facilities which shall be provided may be subject to national or local regulation.
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4.4.3 Pathways and pathway systems
See the EN 50174 series of standards.
4.4.4 HNI
The use of generic cabling in accordance with EN 50173-4 to support BCT applications in accordance
with the EN 60728 series of standards (CATV or MATV/SMATV networks) requires the HNI to be located
within the home distributor (HD).
The requirements for the HD are specified in EN 50173-4.
The requirements for the accommodation of the HD are specified in EN 50174-2.
Requirements for home entrance facilities are specified in the EN 50174-2.
NOTE The location of HNI and home entrance facilities which shall be provided may be subject to national or local regulation.
4.5 Interfaces
4.5.1 BCT applications in accordance with EN 60728-1
EN 60728-1 defines signal requirements at the HNI and the SO (supporting information is provided in
Annex A).
4.5.2 Generic cabling in accordance with EN 50173-4
4.5.2.1 Channel and permanent links
Figure 4 shows the general implementation of generic cabling within a home in accordance with
EN 50173-4 to support BCT applications.
Channel
Permanent link
HD
C C EQP C C C C TE
BO
Panel connection
Figure 4 – Schematic of generic cabling for BCT applications according to EN 50173-4
4.5.2.2 Slope
The slope of the cabling between the HNI and the BO is critical for the support of BCT applications in
accordance with EN 60728-1. The interfaces for the calculation of slope are shown in Figure 5, showing a
direct connection between the HNI and BO, and Figure 6 showing the installation of splitter/amplifier
equipment (EQP) co-located with the HD.
Within EN 50173-4, the permanent link of Figure 4 is constructed from either balanced or coaxial cabling
components. Within the EN 60728 series standards the HNI is a coaxial interface.
In order to utilise a balanced cabling permanent link in installations according to Figure 5, a balun is
required between the HNI and the panel connection of the permanent link, and between the BO and
terminal equipment (TE), unless the TE has a balanced cabling interface.
Within installations in accordance with Figure 6, a coaxial cord connects the HNI to the EQP.
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In order to utilise a balanced cabling permanent link in installations according to Figure 6 a balun is
required between the BO and terminal equipment (TE), unless the TE has a balanced cabling interface
and either
a) the EQP has a balanced cabling interface, or
b) a balun is required between the EQP and the panel connection of the permanent link.
Slope requirement
HNI
HD
C TE
C C C
BO
Panel connection
Figure 5 – Slope interfaces (direct connection of HNI to BO)
Slope requirement
HNI
HD
C C EQP C C C C TE
BO
Panel connection
Splitter/amplifier only
No slope compensation
Figure 6 – Slope interfaces (HNI to BO via splitter/amplifier equipment)
NOTE Where the home contains one or more secondary home distributors (SHD) the definitions of the channel, permanent link
and the slope requirement are modified accordingly.
The insertion loss and slope of cabling is dependent upon the lengths and attenuation specifications of
the cables, cords and, where separately specified, the connecting hardware. Clause 5 defines the
applicable slope requirements and Clause 6 describes reference implementations of cabling in
accordance with EN 50173-4 that supports the relevant slope requirements.
4.6 Dimensioning and configuring
4.6.1 Home network interface
The performance at the home network interface (HNI) (signal levels, slope, C/N, etc.) shall be taken into
account and considered as part of the initial design and implementation of customer applications.
The type of the CATV/MATV/SMATV cable network may be governed by national regulations, in which
case they shall be taken into account in the design of the generic cabling.
5 Slope requirements
5.1.1 Channels and links in accordance with EN 50173-4
5.1.1.1 General
Annex F of EN 50173-1 defines a series of supported BCT applications that have a slope requirement
between the slope boundaries of Figure 5 and Figure 6 (i.e. HNI-BO) of -5 dB. These applications are
supported by:
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a) BCT-x-L permanent links without any slope compensation;
b) BCT-x-M permanent links with a 6 dB slope compensation (i.e. introduced by equipment installed in
the HD, e. g. a passive splitter or active amplifier);
c) BCT-x-H permanent links only where specific transmission engineering has been applied.
EN 50173-4 specifies limits for the transmission performance of permanent links using BCT-B and BCT-C
cabling by reference to EN 50173-1. These limits and the slopes associated with these transmission
performance specifications are detailed in Table 2 for BCT-B cabling and Table 3 for BCT-C cabling.
Table 2 – Slope performance of balanced cabling in accordance with EN 50173-4
Class Cabling/balun slope Slope of EN 50173-1 Margin for slope of
between HNI and BO permanent link at cords/baluns between
insertion loss limit HNI and BO
dB dB
BCT-B-L -5,0 -4,4 -0,6
BCT-B-M -11,0 -10,4 -0,6
BCT-B-H System dependent -21,7 System dependent
Table 3 – Slope performance of coaxial cabling in accordance with EN 50173-4
Class Cabling slope between Slope of EN 50173-1 Margin for slope of
HNI and BO permanent link at cords between HNI and
insertion loss limit BO
dB db
BCT-C-L
-5,0 -4,2 -0,8
BCT-C-M -11,0 -10,2 -0,8
BCT-C-H
...
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