Information technology - Data centre facilities and infrastructures - Part 2-4: Telecommunications cabling infrastructure

This European Standard addresses the wide range of telecommunications cabling infrastructures within data centres based upon the criteria and classifications for availability within EN 50600-1. This European Standard specifies requirements and recommendations for the following: a) information technology and network telecommunications cabling (e.g. SAN and LAN); b) general information technology cabling to support the operation of the data centre; c) telecommunications cabling to monitor and control, as appropriate, power distribution, environmental control and physical security of the data centre; d) other building automation cabling; e) pathways, spaces and enclosures for the telecommunications cabling infrastructures. Safety 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.

Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren - Teil 2-4: Infrastruktur der Telekommunikationsverkabelung

Technologie de l’information - Installation et infrastructures de centres de traitement de données - Partie 2-4: Infrastructure du câblage dédié télécommunications

Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-4. del: Pokabljenje za telekomunikacije

Ta evropski standard obravnava širok nabor pokabljenja za telekomunikacije v podatkovnih centrih na podlagi meril in klasifikacij za »razpoložljivost« v skladu s standardom EN 50600-1.
Ta evropski standard določa zahteve in podaja priporočila za naslednje:
a) pokabljenje za informacijsko tehnologijo in omrežne telekomunikacijske sisteme (npr. SAN in LAN);
b) splošno pokabljenje za informacijsko tehnologijo za podporo delovanja podatkovnega centra;
c) pokabljenje za telekomunikacije za spremljanje in nadzor distribucije električne energije, ukrepov za varstvo okolja in fizično zaščito podatkovnega centra, kadar je to ustrezno;
d) drugo pokabljenje za avtomatizacijo stavb;
e) prehode, predele in ohišja za pokabljenje za telekomunikacije.
Varnostne zahteve in zahteve za elektromagnetno združljivost (EMC) ne sodijo na področje uporabe tega evropskega standarda ter so zajete v drugih standardih in predpisih. Kljub temu lahko informacije v tem evropskem standardu pripomorejo k izpolnjevanju teh standardov in predpisov.

General Information

Status
Published
Publication Date
26-Mar-2015
Current Stage
6060 - Document made available
Due Date
27-Mar-2015
Completion Date
27-Mar-2015

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SLOVENSKI STANDARD
SIST EN 50600-2-4:2015
01-maj-2015
Informacijska tehnologija - Naprave in infrastruktura podatkovnega centra - 2-4.
del: Pokabljenje za telekomunikacije
Information technology - Data centre facilities and infrastructures -- Part 2-4:
Telecommunications Cabling Infrastructure

Informationstechnik - Einrichtungen und Infrastrukturen von Rechenzentren -- Teil 2-4:

Infra¬struktur der Telekommunikationsverkabelung

Technologie de l’information - Installation et infrastructures de centres de traitement de

données -- Partie 2-4: Infrastructure du câblage dédié télécommunications
Ta slovenski standard je istoveten z: EN 50600-2-4:2015
ICS:
33.020 Telekomunikacije na splošno Telecommunications in
general
35.110 Omreževanje Networking
SIST EN 50600-2-4:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50600-2-4:2015
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SIST EN 50600-2-4:2015
EUROPEAN STANDARD EN 50600-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 35.020; 35.110; 35.160
English Version
Information technology - Data centre facilities and infrastructures
- Part 2-4: Telecommunications cabling infrastructure

Technologie de l'information - Installation et infrastructures Informationstechnik - Einrichtungen und Infrastrukturen von

de centres de traitement de données - Partie 2-4: Rechenzentren - Teil 2-4: Infrastruktur der

Infrastructure du câblage dédié télécommunications Telekommunikationsverkabelung

This European Standard was approved by CENELEC on 2015-02-16. 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.
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

© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50600-2-4:2015 E
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SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 2 –
Content

Foreword ...................................................................................................................................................... 5

Introduction .................................................................................................................................................. 6

1 Scope .................................................................................................................................................. 8

2 Normative references........................................................................................................................ 8

3 Terms, definitions and abbreviations ............................................................................................. 9

3.1 Terms and definitions .......................................................................................................................... 9

3.2 Abbreviations ..................................................................................................................................... 10

4 Conformance ................................................................................................................................... 11

5 Telecommunications cabling within the data centre ................................................................... 11

5.1 General .............................................................................................................................................. 11

5.2 Information technology and network telecommunications cabling in the computer room space ...... 14

5.3 Structured cabling for other data centre spaces and application specific structured cabling ........... 16

6 Availability design principles for telecommunications cabling infrastructure ........................ 17

7 Availability classification for telecommunications cabling infrastructure ............................... 17

7.1 General .............................................................................................................................................. 17

7.2 Telecommunications cabling for the computer room ........................................................................ 18

7.3 Telecommunications cabling for offices ............................................................................................ 22

7.4 Telecommunications cabling for monitoring and control ................................................................... 22

8 Pathways and pathway systems for telecommunications cabling ............................................ 22

8.1 General .............................................................................................................................................. 22

8.2 Pathways ........................................................................................................................................... 23

8.3 Pathway systems .............................................................................................................................. 24

9 Cabinets and racks for the computer room space ...................................................................... 25

9.1 General requirements........................................................................................................................ 25

9.2 Requirements for dimensions ........................................................................................................... 25

9.3 Recommendations ............................................................................................................................ 25

10 Documentation and quality plan .................................................................................................... 25

10.1 Requirements for documentation ...................................................................................................... 25

10.2 Recommendations for documentation .............................................................................................. 25

10.3 Requirements for the quality plan ..................................................................................................... 26

11 Management and operation of the telecommunications cabling infrastructure ...................... 26

11.1 General .............................................................................................................................................. 26

11.2 Automated infrastructure management systems .............................................................................. 26

11.3 Fibre optic cabling ............................................................................................................................. 26

Annex A (normative) Cabling design concepts .................................................................................... 27

A.1 General ............................................................................................................................................. 27

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SIST EN 50600-2-4:2015
– 3 – EN 50600-2-4:2015

A.2 Class 1 cabling concept ................................................................................................................. 27

A.3 Class 2 cabling concepts ............................................................................................................... 28

A.4 Class 3 cabling concepts ............................................................................................................... 30

A.5 Class 4 cabling concepts ............................................................................................................... 32

Annex B (informative) Energy efficiency considerations for the telecommunications cabling

infrastructure ............................................................................................................................................. 35

Bibliography ............................................................................................................................................... 36

Figures

Figure 1 - Schematic relationship between the EN 50600 standards ........................................................... 7

Figure 2 – Impact of growth in an unstructured point-to-point cabling infrastructure .................................. 13

Figure 3 – Example of point-to-point cabling ............................................................................................... 13

Figure 4 – Structured cabling infrastructure: setup and growth .................................................................. 14

Figure 5 – Data centre cabling subsystems according to EN 50173-5 ....................................................... 15

Figure 6 – Office cabling subsystems according to EN 50173-2 ................................................................ 15

Figure 7 – Building service cabling subsystem according to EN 50173-6 .................................................. 16

Figure 8 – Telecommunication cabling Class 1 using direct attached cords .............................................. 18

Figure 9 – Transmission channels (interconnect and cross-connect) ......................................................... 19

Figure 10 – ENI redundancy for Class 1 and 2 ........................................................................................... 19

Figure 11 – Managing moves, adds and changes ...................................................................................... 20

Figure 12 - Redundant multipath telecommunication cabling Class 3 ........................................................ 20

Figure 13 - Redundant multipath telecommunication cabling Class 4 ........................................................ 21

Figure A.1 – Symbols of network elements ................................................................................................. 27

Figure A.2 – Example of a Class 1 cabling implementation ........................................................................ 27

Figure A.3 – Example for Class 2 EoR cabling implementation.................................................................. 28

Figure A.4 – Example for Class 2 MoR cabling implementation ................................................................. 29

Figure A.5 – Example for Class 2 ToR cabling implementation .................................................................. 30

Figure A.6 – Example for Class 3 EoR cabling implementation.................................................................. 31

Figure A.7 – Example for Class 3 ToR cabling implementation .................................................................. 32

Figure A.8 – Example for Class 4 EoR cabling implementation.................................................................. 33

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SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 4 –

Figure A.9 – Example for Class 4 ToR cabling implementation .................................................................. 34

Tables

Table 1 – Telecommunication cabling Availability Classes per space architecture and overall data centre

Availability Class for facilities and infrastructures ................................................................................ 18

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SIST EN 50600-2-4:2015
– 5 – EN 50600-2-4:2015
Foreword

This document (EN 50600-2-4:2015) has been prepared by CLC/TC 215 "Electrotechnical aspects of

telecommunication equipment".
The following dates are fixed:
• latest date by which this document has to be (dop) 2016-02-16
implemented at national level by publication
of an identical national standard or by
endorsement
(dow) 2018-02-16
• latest date by which the national standards
conflicting with this document have to
be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CENELEC by the European Commission and

the European Free Trade Association.
---------------------- Page: 7 ----------------------
SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 6 –
Introduction

The unrestricted access to internet-based information demanded by the information society has led to an

exponential growth of both internet traffic and the volume of stored/retrieved data. Data centres are housing

and supporting the information technology and network telecommunications equipment for data processing,

data storage and data transport. They are required both by network operators (delivering those services to

customer premises) and by enterprises within those customer premises.

Data centres need to provide modular, scalable and flexible facilities and infrastructures to easily

accommodate the rapidly changing requirements of the market. In addition, energy consumption of data

centres has become critical both from an environmental point of view (reduction of carbon footprint) and with

respect to economical considerations (cost of energy) for the data centre operator.

The implementation of data centres varies in terms of:
a) purpose (enterprise, co-location, co-hosting or network operator facilities);
b) security level;
c) physical size;
d) accommodation (mobile, temporary and permanent constructions).

The needs of data centres also vary in terms of availability of service, the provision of security and the

objectives for energy efficiency. These needs and objectives influence the design of data centres in terms of

building construction, power distribution, environmental control and physical security. Effective management

and operational information is required to monitor achievement of the defined needs and objectives.

This series of European Standards specifies requirements and recommendations to support the various

parties involved in the design, planning, procurement, integration, installation, operation and maintenance of

facilities and infrastructures within data centres. These parties include:
1) owners, facility managers, ICT managers, project managers, main contractors;

2) architects, building designers and builders, system and installation designers;

3) facility and infrastructure integrators, suppliers of equipment;
4) installers, maintainers.

At the time of publication of this European Standard, EN 50600 series will comprise the following standards:

EN 50600-1, Information technology - Data centre facilities and infrastructures - Part 1: General concepts

EN 50600-2-1, Information technology - Data centre facilities and infrastructures - Part 2-1: Building

construction

EN 50600-2-2, Information technology - Data centre facilities and infrastructures - Part 2-2: Power

distribution

EN 50600-2-3, Information technology - Data centre facilities and infrastructures - Part 2-3: Environmental

control

EN 50600-2-4, Information technology - Data centre facilities and infrastructures - Part 2-4:

Telecommunications cabling infrastructure

EN 50600-2-5, Information technology - Data centre facilities and infrastructures - Part 2-5: Security systems

EN 50600-3-1, Information technology - Data centre facilities and infrastructures - Part 3-1: Management and

operational information

The inter-relationship of the standards within the EN 50600 series is shown in Figure 1.

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SIST EN 50600-2-4:2015
– 7 – EN 50600-2-4:2015
EN 50600-2-1
Building construction
EN 50600-2-2
Power distribution
EN 50600-2-3
Environmental control
EN 50600-1
General concepts
EN 50600-2-4
Telecommunications
cabling infrastructure
EN 50600-2-5
Security systems
EN 50600-3-1
Management and
operational information
Figure 1 - Schematic relationship between the EN 50600 standards

EN 50600-2-X standards specify requirements and recommendations for particular facilities and

infrastructures to support the relevant classification for “availability”, “security” and “energy efficiency

enablement” selected from EN 50600-1.

EN 50600-3-X documents specify requirements and recommendations for data centre operations, processes

and management.

This European Standard addresses the specific requirements for the telecommunications cabling

infrastructure in data centres used for the purpose of IT networking and building services (in accordance with

the requirements of EN 50600-1).

This European Standard is intended for use by and collaboration between architects, building designers and

builders, system and installation designers.

This series of European Standards does not address the selection of information technology and network

telecommunications equipment, software and associated configuration issues.
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SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 8 –
1 Scope

This European Standard addresses the wide range of telecommunications cabling infrastructures within data

centres based upon the criteria and classifications for “availability” within EN 50600-1.

This European Standard specifies requirements and recommendations for the following:

a) information technology and network telecommunications cabling (e.g. SAN and LAN);

b) general information technology cabling to support the operation of the data centre;

c) telecommunications cabling to monitor and control, as appropriate, power distribution, environmental

control and physical security of the data centre;
d) other building automation cabling;

e) pathways, spaces and enclosures for the telecommunications cabling infrastructures.

Safety 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.
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, Information technology - Generic cabling systems - Part 1: General requirements

EN 50173-2, Information technology - Generic cabling systems - Part 2: Office premises

EN 50173-5, Information technology - Generic cabling systems - Part 5: Data centres

EN 50173-6, Information technology - Generic cabling systems – Part 6: Distributed building services

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 50600-1:2012, Information technology - Data centre facilities and infrastructures - Part 1: General

concepts

EN 50600-2-1, Information technology - Data centre facilities and infrastructures – Part 2-1: Building

construction

EN 50600-2-3, Information technology - Data centre facilities and infrastructures - Part 2-3: Environmental

control

EN 50600-3-1 , Information technology - Data centre facilities and infrastructures - Part 3-1: Management

and operational information
———————
Submitted to formal vote.
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SIST EN 50600-2-4:2015
– 9 – EN 50600-2-4:2015
3 Terms, definitions and abbreviations
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 50600-1 and the following apply.

3.1.1
application-specific cabling

structured cabling with a configuration and performance which is considered to provide a specific benefit for

a single, or limited number of applications, as compared to generic cabling
3.1.2
central patching location
passive cross-connect to connect different functional elements of a data centre

Note 1 to entry: A central patching location can be located in the main distribution area and/or the intermediate distribution area and is

therefore a special configuration of an MD and/or an ID.
3.1.3
cross-connect

method of connecting a patch panel port to another patch panel port by the use of a patch cord or jumper

3.1.4
data centre information technology equipment

equipment in the computer room space of a data centre that transports and/or stores and/or processes

information
3.1.5
fixed cabling

cabling subsystem between closures which has either a peer-to-peer or hierarchical structure and which

enables the installation of cross-connects or interconnects at those closures
3.1.6
generic cabling

structured telecommunications cabling system, capable of supporting a wide range of applications

Note 1 to entry: Application-specific hardware is not a part of generic cabling.

Note 2 to entry: Generic cabling can be installed without prior knowledge of the required applications.

[SOURCE: EN 50173-1:2011, 3.1.40 – modified: changed the editorial presentation of NOTES]

3.1.7
interconnect

method of connecting a patch panel port to an equipment port by the use of equipment cords

3.1.8
office network information technology equipment

equipment in data centre spaces that transports and/or stores and/or processes information

3.1.9
point-to-point connection

direct connection of two pieces of IT equipment using a dedicated cable rather than a generic cabling system

3.1.10
structured cabling

telecommunications cabling comprising fixed cables between points of distribution at which equipment or

other fixed cables may be connected
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SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 10 –
3.1.11
telecommunications provider
either an access provider or a service provider

Note 1 to entry: The term access provider is defined in EN 50174-2:2009/A2:2014, 3.1.1.

Note 2 to entry: The term service provider is defined in EN 50174-2:2009/A2:2014, 3.1.30.

3.1.12
zone patching location

passive cross-connect to connect different function elements of a data centre zone. A zone patching location

can be located in the zone distribution area and is therefore a special configuration of a ZD.

3.2 Abbreviations

For the purposes of this document, the abbreviations given in EN 50600-1 and the following abbreviations

apply.
BEF Building Entrance Facility
BD Building Distributor
Connection
CD Campus Distributor
CP Consolidation Point
CPL Central Patching Location
ENI External Network Interface
EO Equipment Outlet
EoR End of Row
EQP Transmission Equipment
FD Floor Distributor
ID Intermediate Distributor
LDP Local Distribution Point
MD Main Distributor
MoR Middle of Row
SCP Service Concentration Point
SD Service Distributor
SO Service Outlet
TE Terminal Equipment
TO Telecommunications Outlet
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SIST EN 50600-2-4:2015
– 11 – EN 50600-2-4:2015
ToR Top of Rack
ZD Zone Distributor
ZPL Zone Patching Location
4 Conformance
For a data centre to conform to this European Standard:
a) the cabling design shall meet the requirements of Clause 5;

b) the cabling design for the selected Availability Class shall be in accordance with Clause 7;

c) the design and specifications of pathways and spaces shall be in accordance with Clauses 8

and 9;

d) the information technology cabling to support the operation of the data centre shall be in

accordance with EN 50173-2, except where 7.3 allows an alternative approach ;

e) the information technology cabling to support the IT networking function of the data centre shall be in

accordance with EN 50173-5, except where 7.2 allows an alternative approach;

f) telecommunications cabling for monitoring and/or control of power distribution, environmental control and

physical security shall be in accordance with EN 50173-6, except where 7.4 allows an alternative

approach;

g) installation specification, quality assurance, installation planning and practice of cabling shall be in

accordance with EN 50174 series and Clauses 8 and 9;
h) national and local regulations, including safety, shall be met.
5 Telecommunications cabling within the data centre
5.1 General
5.1.1 The importance of telecommunications cabling within data centre spaces

The telecommunications cabling within the data centre serves to support the following:

a) data centre information technology and network telecommunications;
b) monitoring and controlling of other data centre infrastructures;
c) building management and automation.

The design and planning of cabling infrastructures should be undertaken at an early stage of the data centre

design or refurbishment and should be integrated with the design and planning of:

1) electrical power;
2) environmental control systems;
3) security systems;
4) lighting systems.

This clause defines the requirements and recommendations for the performance, design criteria and

architectures for the different cabling types in a data centre.
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SIST EN 50600-2-4:2015
EN 50600-2-4:2015 – 12 –

The importance of the information technology and network telecommunications cabling infrastructure is

similar to that of other infrastructures such as environmental control, power distribution and security. As with

other utilities, interruptions to service can have a 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.
5.1.2 Cabling implementation

The cabling infrastructures in a data centre shall be appropriate to provide networking and

telecommunications capabilities in and between dedicated data centre spaces.

For the purposes of this standard, two types of cabling are considered for data centre spaces:

a) point-to-point;

b) fixed cabling implemented using structured cabling including the generic cabling solutions of the

EN 50173 series. The closures may be grouped and accommodated in cabinets, frames or racks

which act as cabling presentation facilities. The cabling presentation facilities allow

interconnection or cross-connections between fixed cabling or between fixed cabling and IT

equipment in close proximity.
5.1.3 Point-to-point cabling
5.1.3.1 General

The point-to-point connection method uses discrete cords (typically factory-produced) that directly connect

the active equipment. Each cord connects a single port of one device to a single port of another device.

Although point-to-point cabling seems to be the simplest and most cost effective method of providing

connections, for several reasons this cabling type should only be used for connections within the same or

two adjacent cabinets, frames or racks. Point-to-point cabling is often not reusable as the data centre

evolves and equipment types and locations change and may have a limited life time expectation. Continuous

changes to the required interconnections increase both the planning and the operational resources required

for each change (see Figure 2 and Figure 3) and increases the risk of interfering with other infrastructures -

including those for environmental control.
5.1.3.2 Restrictions on the use of point-to-point cabling

Where this standard allows point-to-point cabling, it should ony be used subject to the following restrictions:

a) the mechanical performance of cords or cables used for point-to-point connections shall meet the

requirements of the installation environment (e.g. pathway systems);

b) connectors on cords shall be protected against damage during installation, disconnection or removal;

c) point-to-point connections shall only be used where the replacement of the cord following damage to

either connector can be performed without disruption to the data centre operation;

d) cords shall be managed so as to avoid mechanical damage and/or accidental disconnection to adjacent

connections during insertion or removal;

e) cords shall be labelled at both ends to show their origin and destination in accordance with the level 3

administration requirements of EN 50174-1;

f) the impact of point to point connections on the fire load of cabling shall be assessed and mitigation

provided if necessary;
g) cor
...

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