EN 50173-3:2007

SLOVENSKI STANDARD
01-maj-2008
Informacijska tehnologija - Univerzalni sistemi polaganja kablov - 3. del:
Industrijska okolja
Information technology - Generic cabling systems - Part 3: Industrial premises
Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 3:
Industriell genutzte Standorte
Technologies de l'information - Systemes de câblage générique - Partie 3: Bâtiments du
secteur industriel
Ta slovenski standard je istoveten z: EN 50173-3:2007
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 50173-3
NORME EUROPÉENNE
September 2007
EUROPÄISCHE NORM
ICS 35.110
English version
Information technology -
Generic cabling systems -
Part 3: Industrial premises
Technologies de l'information -  Informationstechnik -
Systèmes de câblage générique - Anwendungsneutrale
Partie 3: Bâtiments du secteur industriel Kommunikationskabelanlagen -
Teil 3: Industriell genutzte Standorte

This European Standard was approved by CENELEC on 2007-09-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, 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: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50173-3:2007 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 215, Electrotechnical
aspects of telecommunication equipment.
The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50173-3 on
2007-09-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2008-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-09-01
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 premises
EN 50173-3 Information technology – Generic cabling systems – Part 3: Industrial premises
EN 50173-4 Information technology – Generic cabling systems – Part 4: Homes
EN 50173-5 Information technology – Generic cabling systems – Part 5: Data centres
This European Standard, EN 50173-3, contains specific requirements for generic cabling systems intended to
be operated in industrial premises, referencing the general requirements of EN 50173-1:2007. It is based upon
but is not identical to ISO/IEC 24702:2006, Information technology - Generic cabling - Industrial premises.

- 3 - EN 50173-3:2007
Contents
Introduction .5
1 Scope and conformance .9
1.1 Scope.9
1.2 Conformance.9
2 Normative references .10
3 Definitions and abbreviations.10
3.1 Definitions.10
3.2 Abbreviations.11
4 Structure of the generic cabling system in industrial premises.12
4.1 General .12
4.2 Functional elements.12
4.3 Cabling subsystems.12
4.4 Interconnection of subsystems.15
4.5 Accommodation of functional elements.16
4.6 Interfaces .17
4.7 Dimensioning and configuring .17
5 Channel performance in industrial premises.19
5.1 General .19
5.2 Environmental performance .20
5.3 Transmission performance.20
6 Reference implementations in industrial premises.22
6.1 General .22
6.2 Balanced cabling .22
6.3 Optical fibre cabling .24
7 Cable requirements in industrial premises.26
7.1 General .26
7.2 Balanced cables .26
7.3 Optical fibre cables .27
8 Connecting hardware requirements in industrial premises.27
8.1 General requirements .27
8.2 Connecting hardware for balanced cabling.27
8.3 Connecting hardware for optical fibre cabling.28
9 Requirements for cords and jumpers in industrial premises .29
9.1 General .29
9.2 Jumpers .29
9.3 Balanced cords.29
9.4 Optical fibre cords.29
Annex A (normative) Permanent link performance limits.30
Annex B (normative) Reference implementations that do not conform to Clause 4.32
Annex C (informative) Alternative cabling implementations .36
Bibliography .38

Figures
Figure 1 - Cabling specified by EN 50173-3 and its relationship to OSI reference model layers . 6
Figure 2 - Schematic relationship between the EN 50173 series and other relevant standards. 7
Figure 3 - Configuration of apparatus-based functional elements within industrial premises. 13
Figure 4 - Structure of generic cabling for industrial environment. 13
Figure 5 - Hierarchical structure of generic cabling for industrial premises. 15
Figure 6 - Inter-relationship of functional elements in an installation with
diversity for protection against failure. 15
Figure 7 - Accommodation of functional elements . 16
Figure 8 - Test and equipment interfaces . 17
Figure 9 - Transmission performance of a channel. 19
Figure 10 - Example of a system showing the location of cabling interfaces
and extent of associated channel . 20
Figure 11 - Intermediate cabling models. 23
Figure 12 - Combined optical fibre intermediate/floor channels. 25
Figure A.1 - Permanent link options . 30
Figure B.1 - Channel configurations with no connections . 32
Figure B.2 - Channel configurations with balanced cabling inter-connections . 33
Figure B.3 - Channel configurations with balanced cabling bulkhead connections . 34
Figure C.1 - Alternative channel configurations . 36
Tables
Table 1 - Contextual relationship between EN 50173 series and other standards relevant for information
technology cabling systems . 8
Table 2 - Intermediate cabling channel equations.23
Table 3 - Channel length equations for plastic and plastic clad silica optical fibre cabling.26
Table B.1 - Channel equations for balanced cabling.34
Table B.2 - Channel equations for bulkhead connections .35
Table C.1 - Alternative channel equations.37

- 5 - EN 50173-3:2007
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 net
...