ETSI TS 105 174-1 V1.1.1 (2009-10)

Access, Terminals, Transmission and Multiplexing (ATTM); Broadband Deployment - Energy Efficiency and Key Performance Indicators; Part 1: Overview, common and generic aspects

DTS/ATTM-02005-1-1

General Information

• Status: Published
• Publication Date: 07-Oct-2009
• Technical Committee: ATTM AT2 - Infrastructure, Physical Networks & Communication Systems
• Current Stage: 12 - Completion
• Due Date: 09-Oct-2009
• Completion Date: 08-Oct-2009

Standards Content (Sample)

ETSI TS 105 174-1 V1.1.1 (2009-10)
Technical Specification


Access, Terminals, Transmission and Multiplexing (ATTM);
Broadband Deployment - Energy Efficiency
and Key Performance Indicators;
Part 1: Overview, common and generic aspects

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2 ETSI TS 105 174-1 V1.1.1 (2009-10)



Reference
DTS/ATTM-02005-1-1
Keywords
access, cable, optical, site engineering
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3 ETSI TS 105 174-1 V1.1.1 (2009-10)
Contents
Intellectual Property Rights . 4
Foreword . 4
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 Broadband deployment. 9
5 Network sub-systems of broadband deployment . 9
5.1 General . 9
5.2 Network sub-systems . 9
5.2.1 Data centre . 10
5.2.2 Operator site. 10
5.2.3 Customer premises . 10
5.2.4 Primary power requirements . 11
5.3 Network sites . 11
5.4 Customer premises . 11
5.5 Access networks . 12
5.5.1 Schematic . 12
5.5.2 Infrastructures and technologies . 13
6 Energy efficiency . 14
7 Overview of the multi-part deliverable: Energy efficiency and broadband deployment . 15
7.1 Part 1: Overview, common and generic aspects . 15
7.2 Part 2: Network sites . 15
7.2.1 Sub-part 1: Operator sites . 15
7.2.2 Sub-part 2: Data centres . 16
7.3 Part 3: Core networks . 16
7.4 Part 4: Access networks . 17
7.5 Part 5: Customer network infrastructures . 17
7.5.1 Sub-part 1: Homes (single-tenant) . 17
7.5.2 Sub-part 2: Office premises (single-tenant) . 17
7.5.3 Sub-part 3: Industrial premises (single-tenant) . 18
7.5.4 Sub-part 4: Data centres (customer). 18
7.5.5 Sub-part 5: Multi-tenant premises (residential and commercial) . 18
8 Future developments in the series of documents . 18
Annex A (informative): Bibliography . 19
History . 20

ETSI

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4 ETSI TS 105 174-1 V1.1.1 (2009-10)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Access, Terminals, Transmission
and Multiplexing (ATTM).
The present document is part 1, of a multi-part deliverable covering energy efficiency and broadband deployment, as
identified below:
Part 1: "Overview, common and generic aspects";
Part 2: "Network sites";
Sub-part 1: "Operator sites";
Sub-part 2: "Data centres";
Part 3: "Core, regional metropolitan networks";
Part 4: "Access networks";
Part 5: "Customer network infrastructures";
Sub-part 1: "Homes (single-tenant)";
Sub-part 2: "Office premises (single-tenant)";
Sub-part 3: "Industrial premises (single-tenant)";
Sub-part 4: "Data centres (customer)";
Sub-part 5: "Multi-tenant premises (residential and commercial)".
ETSI

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5 ETSI TS 105 174-1 V1.1.1 (2009-10)
Introduction
The increasing interaction between the different elements of the Information Communication Technology (ICT) sector
(hardware, middleware, software and services) supports the concept of convergence in which:
• multi-service packages can be delivered over a common infrastructure;
• a variety of infrastructures is able to deliver these packages;
• a single multi-service-package may be delivered over different infrastructures.
As a result of this convergence, the development of new services, applications and content has resulted in an increased
demand for bandwidth, reliability, quality and performance, with a consequent increase in the demand for power which
has implications for cost and, in some cases, availability. It is therefore important to maximize the energy efficiency of
all the network elements necessary to deliver the required services.
New technologies and infrastructure strategies are expected to enable operators to decrease the energy consumption, for
a given level of service, of their existing and future infrastructures thus decreasing their costs. This requires a common
understanding among market participants that only standards can produce.
The present document is part 1 of a multi-part deliverable which has been produced by ETSI Technical Committee
Access, Terminals,Transmission and Multiplexing (ATTM) in close collaboration with CENELEC via the
Co-ordination Group on Installations and Cabling (CGIC). It offers a contribution to the required standardization
process by establishing an initial basis for work on ICT networks and transmission engineering, with active
collaboration from a number of other ETSI and CENELEC Technical Bodies. When complete, the multi-part
deliverable will contain information that has been jointly evolved to present developments in installations and
transmission implementation, and describing their progress towards energy efficiency in next generation
networks (NGN).
It is intended that all the documents mentioned in the foreword and more fully described in clause 7 will be produced as
soon as the workload allows. The initial activity is outlined in informative annex C, which will be revised from time to
time. The multi-part deliverable will contain a high level analysis of broadband deployment and multi-service
implementation, explaining the various optical fibre access network infrastructure architectures (FTTx) required to
deliver efficient broadband services to customer premises and the associated difficulties, for example, the impact on
implementation created by legislation and regulation of the operator environment.
In order to monitor the implementation and operation of energy efficient broadband deployment, certain documents will
also discuss Key Performance Indicators (KPI) for energy efficiency and focus on the possible consequences of
standardization of installations, cabling techniques and equipment. In particular, the study will investigate possibilities
and suggest solutions for development of processes for optimization in installation techniques and energy consumption.
ETSI

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6 ETSI TS 105 174-1 V1.1.1 (2009-10)
1 Scope
The present document gives an overview of this multi-part deliverable covering energy efficiency and broadband
deployment. Clauses 2 and 3 contain references, definitions and abbreviations which relate to this part; similar
information will be included in the corresponding clauses of the other parts, thus ensuring that each document can be
used on a "stand-alone" basis.
Clause 5 describes the network sub-systems applicable to broadband deployment and their interconnections.
Clause 6 considers the measures which may be taken to maximize energy efficiency of the end-to-end network and
introduces the concept of key performance indicators (KPI) to enable consistent monitoring of energy efficiency for
each of the network sub-systems described in clause 4.
Clause 7 contains details of the subsequent parts and sub-parts of this multi-part deliverable which, for each of the
network sub-systems described in clause 4:
• identify the standardization bodies working on the design and installation of the cabling within and between
the network sub-systems and the relevant interfaces;
• provide a more strategic analysis of energy consumption trends, in a range of different broadband deployment
scenarios;
• outline further work needed to ensure the improvement of power efficiency in communication networks.
This will enable the proper implementation of services, applications and content using an energy efficient infrastructure,
though it is not the goal of this multi-part deliverable to provide detailed standardized solutions for the power
distribution systems or physical design of data centres.
The present document also contains informative annexes which may later be deleted and/or the information transferred
to other parts of the multi-part deliverable set.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
ETSI

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7 ETSI TS 105 174-1 V1.1.1 (2009-10)
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] European Commission, DG-JRC Code of Conduct on Data Centres Energy Efficiency.
[2] CENELEC EN 50173-2: "Information technology - Generic cabling systems - Part 2: Office
premises".
[3] CENELEC EN 50173-3: "Information technology - Generic cabling systems - Part 3: Industrial
premises".
[4] CENELEC EN 50173-4: "Information technology - Generic cabling systems - Part 4: Homes".
[5] CENELEC EN 50173-5: "Information technology - Generic cabling systems - Part 5: Data
centres".
[6] CENELEC TR 50173-99-2: "Information technology - Implementation of BCT applications using
cabling in accordance with EN 50173-4".
[7] CENELEC EN 50174-1: "Information technology - Cabling installation - Part 1: Installation
specification and quality assurance".
[8] CENELEC EN 50174-2: "Information technology - Cabling installation - Part 2: Installation
planning and practices inside buildings".
[9] CENELEC EN 50174-3: "Information technology - Cabling installation - Part 3: Installation
planning and practices outside buildings".
[10] CENELEC EN 60728 series: "Cable networks for television signals, sound signals and interactive
services".
[11] CENELEC EN 61784 series: "Industrial communication networks - Profiles".
[12] CENELEC EN 61918: "Industrial communication networks - Installation of communication
networks in industrial premises".
[13] ITU-T Recommendation I.113: "Vocabulary of terms for broadband aspects of ISDN".
2.2 Informative references
The following referenced documents are not essential to the use of the present document but they assist the user with
regard to a particular subject area. For non-specific references, the latest version of the referenced document (including
any amendments) applies.
[i.1] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio
equipment and telecommunications terminal equipment and the mutual recognition of their
conformity (R&TTE Directive).
[i.2] Directive 2002/22/EC of the European Parliament and of the Council of 7 March 2002 on
universal service and users' rights relating to electronic communications networks and services
(Universal Service Directive).
[i.3] ETSI TS 102 973: "Access Terminals, Transmission and Multiplexing (ATTM); Network
Termination (NT) in Next Generation Network architectures".
[i.4] ETSI EG 201 730 (all parts): "Terminals' access to Public Telecommunications Networks;
Application of the Directive 1999/5/EC (R&TTE), article 4.2; Guidelines for the publication of
interface specifications".
[i.5] ETSI EG 202 306: "Transmission and Multiplexing (TM); Access networks for residential
customers".
ETSI

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8 ETSI TS 105 174-1 V1.1.1 (2009-10)
[i.6] ETSI TR 105 174-2-1: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband
Deployment - Energy Efficiency and Key Performance Indicators; Part 2: Network sites;
Sub-part 1: Operator sites".
[i.7] ETSI TS 105 174-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband
Deployment - Energy Efficiency and Key Performance Indicators; Part 2: Network sites;
Sub-part 2: Data centres".
[i.8] ETSI TS 105 174-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband
Deployment - Energy Efficiency and Key Performance Indicators; Part 3: Core, regional
metropolitan networks".
[i.9] ETSI TR 105 174-4: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband
Deployment - Energy Efficiency and Key Performance Indicators; Part 4: Access networks".
[i.10] ETSI TR/TS 105 174-5 (all sub-parts): "Access, Terminals, Transmission and Multiplexing
(ATTM); Broadband Deployment - Energy Efficiency and Key Performance Indicators;
Part 5: Customer network infrastructures".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
access network: functional elements (that is equipment and infrastructure) that enable communication between the core
network and a customer network
core network: functional elements (that is equipment and infrastructure) that enable communication between operator
sites and/or network data centres
customer network: functional elements (that is equipment and infrastructure) that enable communication between an
NTP or ENTI, as appropriate, and one or more attached terminal equipments
distribution infrastructure: sub-part of the access network comprising the functional elements that enable
communication between the last cabinet and a customer network
External Network Test Interface (ENTI): point in or near the customer premises (inside or outside the customer
network) accessible to the network operator for testing purposes
Network Termination Point (NTP): physical point(s) at which a subscriber is provided with access to the operator
network (this may be co-located with an external network test interface)
NOTE: The schematic of figure 1 helps understanding many of the definitions related with relevant points and
areas of the installation.
transport infrastructure: sub-part of the access network comprising the functional elements that enable
communication between the core network and the last cabinet and a customer network
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATTM Access, Terminals, Transmission and Multiplexing
BEF Building Entrance Facility
CENELEC European Committee for Electrotechnical Standardization
CGIC Co-ordination Group on Installations and Cabling
CP Customer Premises
DC (Network) Data Centre
ENTI External Network Test Interface
FTTB Fibre To The Building
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9 ETSI TS 105 174-1 V1.1.1 (2009-10)
FTTC Fibre To The Cabinet
FTTH Fibre To The Home
FTTx Fibre To The (various)
NOTE: See FTTB, FTTC and FTTH.
HEF Home Entrance Facility
HFC Hybrid Fibre Coaxial
HV High Voltage
ICT Information Communications Technology
ISDN Integrated Service Digital Network
KPI Key Performance Indicator
LC Last Cabinet
NOTE: Before the customer premises in the access network.
NGN Next Generation Networks
NTP Network Termination Point
ODC Operator Data Centre
OS Operator Site
POTS Plain Old Telephone Service
TxRx Transceiver equipment
4 Broadband deployment
Broadband access equipment is defined by its incorporation of a transmission technology capable of providing more
than 2 048 kbit/s (ITU-T recommendation I.113 [13]) full-rate capacity in at least one direction. On this basis, ISDN is
not considered to be a broadband technology and is not addressed in the present document.
5 Network sub-systems of broadband deployment
5.1 General
This clause will identify and explain the elements of the network sub-systems employed in broadband deployment.
5.2 Network sub-systems
Figure 1 is a technology agnostic diagram depicting a segment of a broadband network showing the interconnection of
network data centres, operator sites and customer premises installations. In principle, every operator network can
contain any number of each of these elements and may be connected to any number of other operator networks.
ETSI

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10 ETSI TS 105 174-1 V1.1.1 (2009-10)
Customer premises
connected to two
CP
operator networks
CP
Access
CP
network 2 Core network 1
CP
Customer premises
CP OS
Core network 2
connected to two
operator sites
CP
for resilience
OS
Access
OS
network 1
OS
OS
DC
OS
DC
DC

Figure 1: Network sub-systems of broadband deployment
5.2.1 Data centre
A network data centre is the network sub-system that supports one or more operator core networks. Its functions include
the storage, processing and dissemination of data as required to fulfil customer expectations, the hosting of the
necessary applications, content hosting, etc. In this context, data centres do not include sites containing only servers and
their related hardware that are used required solely for administrative functions such as customer management
functions, billing, etc.
To enable their functionality, all data centres must be connected to at least one core network operator site. For reasons
of network resilience, data centres will invariably be connected to more than one operator site and to several other data
centres. Data centres may serve core networks operated by several network operators, thus enabling traffic between
customers of different network operators.
5.2.2 Operator site
An operator site is the network sub-system in the core network that enables the connectivity between network data
centres and customer premises over which the required services can be delivered, using the access network. In turn,
operator sites also enable indirect connectivity between customer premises. Operator sites will almost invariably each
serve many thousands of customer connections. Each customer connection may be comprised of multiple
communication paths and serve a variety of applications.
5.2.3 Customer premises
Customer premises are connected to at least one operator site in the core network and contain the terminal equipment
required to provide those services to which the customer has chosen to subscribe, together with the local network
equipment necessary to distribute those services amongst the customers' families or employees at that location.
Customer premises may be connected to two or more operator sites on one or more core networks in order to provide
the desired service diversity.
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TxRx
Switches
Routers
 11 ETSI TS 105 174-1 V1.1.1 (2009-10)
However, the domestic customer premises (that is, homes) will be connected to fewer operator sites as convergence
allows multi-service packages to be delivered over a common infrastructure. The connection of customer premises to
multiple operator sites will be restricted to businesses where the connections provided are intended to a contracted level
of service resilience.
This highlights the distinction between the need of high speed data provision and the requirement for service
availability: the demand for high speed data in homes is expected to increase but the criticality of that provision is low
since much of the increases are related to entertainment services. In comparison, businesses may demand high levels of
service availability, independent of the amount of data transmitted.
5.2.4 Primary power requirements
Both data centres and operator sites will always be critically dependent upon an adequate supply of primary power both
for operation of the network equipment and usually for providing environmental control (for example, temperature and
humidity) and housekeeping services (for example, lighting and domestic services) for the equipment accommodation.
Power is typically provided by one or more feeds from a public supply supplemented almost invariably by on-site
generation equipment in case of supply failure.
These sites also require some form of uninterruptible power supply, at least sufficient to cover the generator start-up
period, in the event of failure of the public supply. Energy from the HV supply invariably needs conversion to a lower
voltage for connection to the equipment; this conversion will always incur some losses.
Customer premises are also dependent on external power in all but the simplest of installations. In the majority of cases
this dependency will be business critical, thus needing similar provisions as those at the main network sites, albeit on a
smaller scale.
In considering overall energy efficiency, the losses incurred in the power conversion equipment for both public and
on-site supplies must be taken into account.
5.3 Network sites
Figure 2 shows the content and external connectivity of the data centres and operator sites in a little more detail though
this diagram is intended only to illustrate the types of equipment employed, not its internal connectivity. For the
purposes of the present study, the boxes marked "TxRx" will be regarded as part of the access or core network, as
appropriate and their power requirements included in the assessments for those networks.
Core network
DC OS
Libraries
Servers
Servers Servers
Switches
Arrays
Routers Access network
TxRx
Core network

Figure 2: Simplified schematic of operator data centres and operator sites
5.4 Customer premises
Figure 3 shows the types of premises served by the majority of access networks.
ETSI
TxRx
Switches
Routers
TxRx
TxRx

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12 ETSI TS 105 174-1 V1.1.1 (2009-10)
Single-tenant
HEF Home
homes
Office
premises
BEF
Industrial Single-tenant
premises premises
Enterprise Data Centre
BEF
OS
Offices
LC BEF
Homes
Home
Multi-tenant
premises
Home
BEF
Home
Home
Access network Customer network
NOTE: an ENTI for an operator network may be connected to more than one NTP, within the premises, each of which is service-specific

Figure 3: Customer premises served by the access network
Custom
...