ETSI ES 203 184 V1.1.1 (2013-03)
Environmental Engineering (EE); Measurement Methods for Power Consumption in Transport Telecommunication Networks Equipment
Environmental Engineering (EE); Measurement Methods for Power Consumption in Transport Telecommunication Networks Equipment
DES/EE-00023
Okoljski inženiring (EE) - Metode merjenja porabe električne energije opreme prenosnih telekomunikacijskih omrežij
General Information
Standards Content (Sample)
Final draft ETSI ES 203 184 V1.1.1 (2012-12)
ETSI Standard
Environmental Engineering (EE);
Measurement Methods for Power Consumption in Transport
Telecommunication Networks Equipment
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2 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
Reference
DES/EE-00023
Keywords
energy efficiency, power, transport
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3 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 7
4 System Description . 7
4.1 Transport System categories. 8
4.2 System Description Framework . 9
5 System Configuration . 10
6 Metrics Definitions of the Equipment Energy Efficiency Ratio for Transport equipment . 11
7 Measurement Method . 12
7.1 Measurement Conditions . 12
7.2 Fixed configuration method . 13
7.3 Flexible configuration method . 13
7.3.1 Requirements for System subparts power measurement. 13
Annex A (informative): Examples of EEER evaluation . 14
A.1 Example 1 - Optical Amplifier . 14
A.1.1 System Description. 14
A.1.2 System Configuration from Manufacturer A . 15
A.1.3 System Configuration from Manufacturer B . 15
A.1.4 EEER computation according to fixed configuration method . 15
A.1.5 EEER computation according to flexible configuration method . 16
A.2 Example 2 - ROADM WSS based (Optical) . 16
A.2.1 System Description. 16
A.2.2 System Configuration . 17
A.2.3 EEER computation according to fixed configuration method . 18
A.2.4 EEER computation according to flexible configuration method . 19
Annex B (informative): Bibliography . 20
History . 21
ETSI
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4 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
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://ipr.etsi.org).
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 final draft ETSI Standard (ES) has been produced by ETSI Technical Committee Environmental Engineering (EE),
and is now submitted for the ETSI standards Membership Approval Procedure.
Introduction
The present document defines the metric, methodology and the test conditions to evaluate the Equipment Energy
Efficiency Ratio (EEER) of Transport equipments. Energy efficiency is, in fact, becoming a relevant issue in
Telecommunication area, and increasing efficiency is a commitment in the Transport segment of the network too.
The present document adopts a "two steps" approach, with a system "description" (high level description of the
application, e.g. general characteristics like whole capacity, client and network interfaces with type and number, optical
features like gain, reach, noise figurer, etc.) and a system "configuration" (one of the possible
configuration/implementation of a given system description), as done in ATIS standard on Transport equipment
(see ATIS-0600015.02.2009 [2]).
The EEER is calculated with the same formula of the ATIS standard [2] but with the measurement conditions defined in
the present document. The EEER is evaluated according to the present document for a given fixed or flexible
configuration.
ETSI
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5 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
1 Scope
The present document defines the metric, methodology and the test conditions to evaluate the Equipment Energy
Efficiency Ratio (EEER) of Transport equipments. The Transport equipments covered will include all the transmission
equipment connected to the network by means of wired medium (i.e. copper or fiber), typically running at the network
OSI level 1. The present document also covers the equipment running at the network OSI level 2 (e.g. MPLS-TP) that
are not included in the ETSI standard on "Measurement Methods for Energy Efficiency of Router and Switch
Equipment" (the same approach is followed by ATIS standard on Transport equipment,
see ATIS-0600015.02.2009 [2]).
The present document is not applicable at node/network level but only at equipment level.
Examples of typical wired Transport equipments covered by the present document are switches or crosses connects
(SDH, OTN) and add/drop multiplexers (DWDM). The present document covers also simpler systems as
multiplexers/demultiplexers (DWDM), optical amplifiers, transponders.
Transport equipments that exploit radio or wireless interfaces (e.g. free space optics and point to point
wireless/microwave transport) are out of the scope of the present document. It is highlighted that ATIS standard for
transport equipment [2] includes wireless transport equipment.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
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.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ATIS-0600015.2009: "Energy Efficiency for Telecommunication Equipment: Methodology for
Measurement and Reporting - General Requirements", February, 2009.
[2] ATIS-0600015.02.2009: "Energy Efficiency for Telecommunication Equipment: Methodology for
Measurement and Reporting - Transport Requirements", February, 2009.
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EN 300 132-2: "Environmental Engineering (EE); Power supply interface at the input to
telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)".
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6 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Add Drop Multiplexer (ADM): network element that provides access to all, or some subset of the constituent signals
contained within an STM-N signal (in SDH) or in an OTU-k signal (in OTN) the ODUk and ODUflex can be accessed
in a similar way in the OTU. The constituent signals are added to (inserted), and/or dropped from (extracted) the
STM-N or OTU-k in OTN the OTU signal, as it passes through the ADM
card: part of an equipment implementing a given functionality (i.e. data interfaces, switching, control). Line cards with
data interfaces can have more ports
cross connect: apparatus enabling the termination of cable elements and their cross-connection, primarily by means of
patch cords or jumpers
Dense WDM (DWDM): WDM system characterised by an high density of optical signals on a given bandwidth
Digital Cross Connect (DXC): apparatus enabling the termination and the cross connection of signals (including
multiplexing and demultiplexing of signals according to a certain hierarchy) at electrical level
Forward Error Correction (FEC): technique which consists of transmitting the data in an encoded form such that the
redundancy added by the coding allows the decoding to detect and correct errors (e.g. in actual application the FEC is
used to extend the distance of transmission of optical signal)
hot-standby: state in which redundancy cards are not in use (stand-by), but are ready to work immediately when
needed
multi service protocol platform: transport equipment that is able to terminate and switch signals with more than one
protocol transport technology framing
Optical Add Drop Multiplexer (OADM): wavelength selective branching device (used in WDM transmission
systems) having a wavelength "drop" function in which one or more optical signals can be transferred from an input
port to either an output port or drop port(s) depending on the wavelength of the signal and also having a wavelength
"add" function in which optical signals presented to the add port(s) are also transferred to the output port (in OTN these
are the OCh signals)
optical amplifier: devices or subsystems in which optical signals can be amplified by means of the stimulated emission
taking place in a suitable active medium
Optical Cross Connect (OXC): apparatus enabling the termination and the cross connection of signal at optical level
(Optical) regenerator: transmitter-receiver combination device that performs the regeneration of an input optical
signal by means of conversion in the electrical domain and applying an FEC
(Optical) transponder: transmitter-receiver combination with or without pulse shaping and retiming that converts an
optical signal into another optical signal by a conversion into the electrical domain
passive (chromatic) dispersion compensator: passive component used to compensate the chromatic dispersion of an
optical path
port: part of a card in which a cable (typically a fiber) or a transceiver can be plugged to interconnect an equipment to
another compatible one
rack: free-standing or fixed structure for housing electrical and/or electronic and/or optical equipment, usually
organized in a number of slots
Reconfigurable OADM (ROADM): flexibly reconfigurable by means of control or management commands on the
node
slot: part of a rack for housing a card
switch: node that is capable of switching slots or packets/frames from one interface to another
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7 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
transcesiver: combination of transmitter and receiver in a single package that is pluggable on a port of a line card with
compatible characteristics (in terms of rate and framing, for instance 40 GbEthernet)
transport equipment: transport equipment enables information transfer capabilities between originating and
terminating access service facilities
Wavelength Division Multiplexing (WDM): bidirectional multiplexing using different optical wavelength for up and
downstream signals
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
CBR Constant Bit Rate signal
CWDM Coarse Wavelength Division Multiplexing
DWDM Dense Wavelength Division Multiplexing
DXC Digital Cross-Connect
EE Energy Efficiency
EEER Equipment Energy Efficiency Ratio
FEC Forward Error Correction
GMPLS Generalized Multi-Protocol Label Switching
IMIX Internet MIX
MPLS Multi Protocol Label Switching
MPLS-TP MPLS- Transport Profile
MSTP Multi Service Transport Platform
NTU Network Termination Unit
OA Optical Amplifier
OCh Optical Channel
ODU Optical Data Unit
OLA Optical Line Amplifier
OMS Optical Multiplex Section
OSI Open Systems Interconnection
OTN Optical Transport Network
OTS Optical Transmission Section
OTU Optica Transport Unit
OXC Optical Cross Connect
PT Packet Transport
ROADM Reconfigurable Optical Add/Drop Multiplexer
SDH Synchronous Digital Hierarchy
SFP Small Form-factor Pluggable
SNC Sub-Network Connection
STM Synchronous Transport Module
TEER Telecommunications Energy Efficiency Ratio
VBR Variable Bit Rate
WADM Wavelength Add/Drop Multiplexer
WDM Wavelength Division Multiplexing
WSON Wavelength Switched Optical Networks
WSS Wavelength Selective Switch
WXC Wavelength Cross-Connect
XFP 10 Gigabit Small Form Factor Pluggable Module
4 System Description
This clause contains the rules to describe a Transport system.
The System Description provides a specification in terms of qualitative (i.e. which type of equipment) and quantitative
(i.e. how many ports of a certain rate) features, without any details about practical/physical implementation (e.g. in
terms of cards arranged on a rack) and number of racks part of a single node.
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8 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
It is suggested that the system description will be "implementation independent" and it shall be provided following the
framework reported in clause 4.2.
The present document covers the following non exhaustive list of Transport equipment types:
• Optical Amplifier, WDM Power Equalizer;
• WDM mux/demux (terminal for DWDM, CWDM);
• OADM, ROADM, OXC;
• SONET/SDH ADM, DXC;
• OTN ADM, DXC;
• Packet Transport switch (MPLS-TP);
• Multi Service Transport Platform (many combinations, i.e. SDH and Ethernet, OTN and Ethernet, OTN and
MPLS-TP, etc.);
• OTN-WDM platform (integrated DXC and ROADM node).
And other Transport equipments as defined in the scope of the present document.
4.1 Transport System categories
The following three Transport system categories are defined in order to properly provide the System Description.
Category A: terminal and signal conditioning equipment
This category, as regards signal handling by the system, is characterized by two sides: side a and side b (sometimes with
the meaning of Input and Output) as depicted in figure 1. The signals may be uni- or bi- directionally handled on each
of the two sides of the equipment.
The following equipments are examples of the category A:
• line OA;
• power equalizer;
• WDM terminal (mux/demux).
InIn / / ssididee a a
OutOut / s / siiddee b b
OuOut/t/ssiidde be b
In/sIn/siidde ae a
AA
AA
InIn / / side bside b
Out /Out / side side aa
Figure 1: Schematic representation for Category A Transport equipment:
unidirectional (on the left) or bidirectional (on the rigth)
Category B: switch and ADM without tributary add/drop ports
This category is characterized by switching or add/drop multiplexing functionalities and all the ports are used for
network interconnection (none of the ports is used for tributary add/drop function). Equipment belonging to this
category plays the role of pure transit equipment in a network.
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9 Final draft ETSI ES 203 184 V1.1.1 (2012-12)
The following equipment are examples of the category B:
• SDH switch or ADM;
• OTN switch or ADM;
• WDM ROADM;
• PT switch.
Figure 2 give a schematic representation of category B.
BB
Figure 2: Schematic representation for Category B Transport equipment
Category C: switch and ADM with tributary add/drop ports
This category is characterized by switching or add/drop multiplexing functionalities and the ports are used both for
network interconnection and for tributary add/drop function. Equipment belonging to this category plays the role of
node in a network where part of the switched traffic is terminated towards network clients.
A list of examples of equipment for category C is the same as the one provided for category B, but in case of category C
the equipment includes also tributary ports as depicted in figure 3.
TTribributarutary pory portsts
CC
Figure 3: Schematic representation for Category C Transport equipment
4.2 System Description Framework
Each system shall be described according to the following framework:
a) System Category in accordance with the definitions of clause 4.1.
b) Type of equipment (i.e. for cat
...
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