EN 62623:2013

Desktop and notebook computers - Measurement of energy consumption

IEC 62623:2012 covers personal computing products. It applies to desktop and notebook computers as defined in 4.1 that are marketed as final products and that are hereafter referred to as the equipment under test (EUT) or product. This standard specifies: - a test procedure to enable the measurement of the power and/or energy consumption in each of the EUT's power modes; - formulas for calculating the typical energy consumption (TEC) for a given period (normally annual); - a majority profile that should be used with this standard which enables conversion of average power into energy within the TEC formulas; - a system of categorisation enabling like for like comparisons of energy consumption between EUTs and a pre-defined format for the presentation of results. This standard does not set any pass/fail criteria for the EUTs. Users of the test results should define such criteria. Keywords: Power consumption, Desktop computer, Notebook computer

Desktop- und Notebook-Computer – Messung des Energieverbrauchs

Ordinateurs de bureau et ordinateurs portables - Mesure de la consommation d'énergie

IEC 62623:2012(E) covers personal computing products. It applies to desktop and notebook computers as defined in 4.1 that are marketed as final products and that are hereafter referred to as the equipment under test (EUT) or product. This standard specifies: - a test procedure to enable the measurement of the power and/or energy consumption in each of the EUT's power modes; - formulas for calculating the typical energy consumption (TEC) for a given period (normally annual); - a majority profile that should be used with this standard which enables conversion of average power into energy within the TEC formulas; - a system of categorisation enabling like for like comparisons of energy consumption between EUTs and a pre-defined format for the presentation of results. This standard does not set any pass/fail criteria for the EUTs. Users of the test results should define such criteria. Keywords: Power consumption, Desktop computer, Notebook computer

Namizni in prenosni računalniki - Merjenje porabe energije (IEC 62623:2012)

Ta mednarodni standard zajema osebne računalnike. V skladu s točko 4.1 velja za namizne in prenosne računalnike, ki so trženi kot končni izdelki (v nadaljevanju: preskušana oprema ali izdelek). Ta standard določa: – preskusno metodo za merjenje porabe energije pri vsakem energijskem načinu preskušane opreme; – formule za izračun tipične porabe energije v določenem obdobju (običajno eno leto); – splošni profil za uporabo s tem standardom, ki omogoča pretvorbo povprečne moči v energijo v okviru formul za izračun tipične porabe energije; – sistem kategorizacije za primerjavo enakih vzorcev porabe energije med preskušanimi izdelki; – vnaprej določeni format za predstavitev rezultatov. Ta standard ne določa meril za uspešno/neuspešno opravljen preskus za preskušano opremo. Taka merila morajo določiti uporabniki rezultatov preskušanja.

General Information

• Status: Published
• Publication Date: 24-Jan-2013
• ICS: 35.160 - Microprocessor systems
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available
• Due Date: 04-Mar-2013
• Completion Date: 25-Jan-2013
• Ref Project: SIST EN 62623:2013 - Desktop and notebook computers - Measurement of energy consumption (IEC 62623:2012)

RELATIONS

• Amended By: EN 50672:2017 - Ecodesign requirements for computers and computer servers
• Effective Date: 25-Feb-2014
• Revised: EN 50672:2017 - Ecodesign requirements for computers and computer servers
• Effective Date: 11-Feb-2015
• Revised: EN IEC 62623:2022 - Desktop and notebook computers - Measurement of energy consumption
• Effective Date: 10-Nov-2020

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 62623:2013
01-julij-2013
1DPL]QLLQSUHQRVQLUDþXQDOQLNL0HUMHQMHSRUDEHHQHUJLMH,(&
Desktop and notebook computers - Measurement of energy consumption (IEC
62623:2012)
Desktop- und Notebook-Computer – Messung des Energieverbrauchs (IEC 62623:2012)

Ordinateurs de bureau et ordinateurs portables - Mesure de la consommation d'énergie

(CEI 62623:2012)
Ta slovenski standard je istoveten z: EN 62623:2013
ICS:
35.160 Mikroprocesorski sistemi Microprocessor systems
SIST EN 62623:2013 en

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

---------------------- Page: 1 ----------------------
SIST EN 62623:2013
---------------------- Page: 2 ----------------------
SIST EN 62623:2013
EUROPEAN STANDARD
EN 62623
NORME EUROPÉENNE
January 2013
EUROPÄISCHE NORM
ICS 35.160
English version
Desktop and notebook computers -
Measurement of energy consumption
(IEC 62623:2012)
Ordinateurs de bureau et ordinateurs Desktop- und Notebook-Computer –
portables - Messung des Energieverbrauchs
Mesure de la consommation d'énergie (IEC 62623:2012)
(CEI 62623:2012)

This European Standard was approved by CENELEC on 2012-12-04. 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62623:2013 E
---------------------- Page: 3 ----------------------
SIST EN 62623:2013
EN 62623:2013 - 2 -
Foreword

The text of document 108/490/FDIS, future edition 1 of IEC 62623, prepared by IEC/TC 108 "Safety of

electronic equipment within the field of audio/video, information technology and communication

technology" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN 62623:2013.
The following dates are fixed:
(dop) 2013-09-04
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-12-04
standards conflicting with the
document have to be withdrawn
This standard is based on ECMA-383.
In this standard, the following print types or formats are used:
– requirements proper and normative annexes: in roman type;
– notes/explanatory matter: in smaller roman type;
– terms that are defined in 3.1: bold.

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.
Endorsement notice

The text of the International Standard IEC 62623:2012 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 62075 NOTE Harmonized as EN 62075.
IEC 62301 NOTE Harmonized as EN 62301.
---------------------- Page: 4 ----------------------
SIST EN 62623:2013
- 3 - EN 62623:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.
Publication Year Title EN/HD Year
ECMA-389 - Procedure for the Registration of Categories - -
for ECMA-383 2nd edition
---------------------- Page: 5 ----------------------
SIST EN 62623:2013
---------------------- Page: 6 ----------------------
SIST EN 62623:2013
IEC 62623
Edition 1.0 2012-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Desktop and notebook computers – Measurement of energy consumption
Ordinateurs de bureau et ordinateurs portables – Mesure de la consommation
d'énergie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 35.160 ISBN 978-2-83220-467-2

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 62623:2013
– 2 – 62623 © IEC:2012
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope ............................................................................................................................... 7

2 Normative references ....................................................................................................... 7

3 Terms, definitions and abbreviations ................................................................................ 7

3.1 Terms and definitions .............................................................................................. 7

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

4 Specifications for EUT .................................................................................................... 11

4.1 Computer descriptions ........................................................................................... 11

4.1.1 Desktop computer ..................................................................................... 11

4.1.2 Notebook computer ................................................................................... 11

4.1.3 Integrated desktop computer ..................................................................... 11

4.2 Power modes ........................................................................................................ 11

4.2.1 Off mode ................................................................................................... 11

4.2.2 P ............................................................................................................ 12

off

4.2.3 Sleep mode ............................................................................................... 12

4.2.4 P ....................................................................................................... 12

sleep

4.2.5 P ................................................................................................ 12

sleepWoL

4.2.6 On mode ................................................................................................... 12

4.2.7 P ............................................................................................................ 12

4.2.8 Idle modes ................................................................................................. 12

4.2.9 Active (work) mode .................................................................................... 13

4.2.10 P ........................................................................................................ 13

work

4.3 Profile attributes .................................................................................................... 13

4.3.1 Profile ........................................................................................................ 13

4.3.2 Majority profile ........................................................................................... 13

4.3.3 Minority profile ........................................................................................... 13

4.3.4 Profile study .............................................................................................. 13

4.3.5 Product active power ratio ......................................................................... 14

4.3.6 PAPR ........................................................................................................ 14

4.3.7 PAWR ....................................................................................................... 14

4.3.8 Product TEC error ..................................................................................... 14

4.3.9 Profile TEC error ....................................................................................... 14

4.4 Categorisation attributes ....................................................................................... 14

4.4.1 General ..................................................................................................... 14

4.4.2 Cores ........................................................................................................ 14

4.4.3 Channels of memory .................................................................................. 14

4.4.4 System memory ......................................................................................... 14

4.4.5 System fan ................................................................................................ 14

4.4.6 TEC adders ............................................................................................... 15

5 Test procedure and conditions, categorisation, TEC formula, meter specifications

and results reporting ....................................................................................................... 15

5.1 General ................................................................................................................. 15

5.2 Test setup ............................................................................................................. 15

5.3 Test procedure ...................................................................................................... 17

5.3.1 General ..................................................................................................... 17

---------------------- Page: 8 ----------------------
SIST EN 62623:2013
62623 © IEC:2012 – 3 –

5.3.2 Measuring off mode ................................................................................... 17

5.3.3 Measuring sleep mode ............................................................................... 17

5.3.4 Measuring long idle mode .......................................................................... 17

5.3.5 Measuring short idle mode ......................................................................... 17

5.3.6 Measuring active mode (optional, see 5.6) ................................................. 18

5.4 Test conditions ...................................................................................................... 18

5.5 Categorisation ....................................................................................................... 19

5.5.1 General ..................................................................................................... 19

5.5.2 ULE category ............................................................................................. 19

5.5.3 TEC adders ............................................................................................... 19

5.6 Annualised energy consumption formulas .............................................................. 20

5.6.1 General ..................................................................................................... 20

5.6.2 Estimated annualised energy consumption formula (estimated active

workload)................................................................................................... 20

5.6.3 Measured annualised energy consumption formula (with an active

workload)................................................................................................... 20

5.6.4 Criteria for an active workload ................................................................... 21

5.7 True RMS watt meter specification ........................................................................ 22

5.8 True RMS watt meter accuracy .............................................................................. 22

5.9 Ambient light meter specification ........................................................................... 24

5.10 Reporting of results ............................................................................................... 24

Annex A (informative) Overview of profile methodology........................................................ 26

Annex B (informative) Majority profile .................................................................................. 28

Annex C (informative) Method for conducting a profile study ................................................ 30

Annex D (informative) Sample TEC calculations .................................................................. 34

Annex E (informative) ENERGY STAR V5 compliant testing methodology ............................ 37

Annex F (informative) Power measurement methodology ..................................................... 39

Annex G (normative) Procedure for the registration of categories for IEC 62623 .................. 43

Bibliography .......................................................................................................................... 45

Figure 1 – Typical test setup ................................................................................................. 16

Figure 2 – Example of estimated annualised energy consumption formula (estimated

active workload) .................................................................................................................... 20

Figure 3 – Measured annualised energy consumption formula (with an active

workload) .............................................................................................................................. 21

Figure A.1 – Example of a typical profile ............................................................................... 27

Figure B.1 – TEC error summary chart .................................................................................. 29

Table 1 – Test conditions ...................................................................................................... 18

Table B.1 – Duty cycle attributes for the enterprise majority profile duty cycle study ............ 28

Table B.2 – Summary of the enterprise energy study ........................................................... 29

Table C.1 – Profile study 1 .................................................................................................... 31

Table C.2 – ENERGY STAR® V5 computer study ................................................................. 31

Table C.3 – Profile study, duty cycles ................................................................................... 32

Table C.4 – Profile study, TEC and TEC calculations ................................... 32

actual estimated

Table E.1 – Duty cycle attributes for V5 compliant testing ..................................................... 38

---------------------- Page: 9 ----------------------
SIST EN 62623:2013
– 4 – 62623 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DESKTOP AND NOTEBOOK COMPUTERS –
MEASUREMENT OF ENERGY CONSUMPTION
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62623 has been prepared by IEC technical committee 108: Safety

of electronic equipment within the field of audio/video, information technology and

communication technology.
This standard is based on ECMA-383.
The text of this standard is based on the following documents:
FDIS Report on voting
108/490/FDIS 108/500/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

---------------------- Page: 10 ----------------------
SIST EN 62623:2013
62623 © IEC:2012 – 5 –
In this standard, the following print types or formats are used:
– requirements proper and normative annexes: in roman type;
– notes/explanatory matter: in smaller roman type;
– terms that are defined in 3.1: bold.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication

indicates that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 11 ----------------------
SIST EN 62623:2013
– 6 – 62623 © IEC:2012
INTRODUCTION

This standard is based on ECMA-383 and complements the guidance given in IEC 62075. It

includes the definitions of energy saving modes and generic energy saving guidance for

designers of desktop and notebook computers, by defining a methodology on how to measure

the energy consumption of a product whilst providing categorisation criteria that enable

energy consumption comparisons of similar products.
---------------------- Page: 12 ----------------------
SIST EN 62623:2013
62623 © IEC:2012 – 7 –
DESKTOP AND NOTEBOOK COMPUTERS –
MEASUREMENT OF ENERGY CONSUMPTION
1 Scope

This International Standard covers personal computing products. It applies to desktop and

notebook computers as defined in 4.1 that are marketed as final products and that are

hereafter referred to as the equipment under test (EUT) or product.
This standard specifies:

– a test procedure to enable the measurement of the power and/or energy consumption in

each of the EUT's power modes;

– formulas for calculating the typical energy consumption (TEC) for a given period

(normally annual);

– a majority profile that should be used with this standard which enables conversion of

average power into energy within the TEC formulas;

– a system of categorisation enabling like for like comparisons of energy consumption

between EUTs;
– a pre-defined format for the presentation of results.

This standard does not set any pass/fail criteria for the EUTs. Users of the test results should

define such criteria.
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.
ECMA-389, Procedure for the Registration of Categories for ECMA-383 2nd edition
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
active workload

simulated amount of productive or operative activity that the EUT performs as represented in

the P (see 4.2.10) and T (see 3.1.13.6) attributes of the TEC equation (see 5.6)
work work
3.1.2
category
grouping of EUT configurations
3.1.3
duty cycle
divisions of time the EUT spends in each of its individual power modes
---------------------- Page: 13 ----------------------
SIST EN 62623:2013
– 8 – 62623 © IEC:2012
Note 1 to entry: A duty cycle is expressed as a percentage totalling 1.
3.1.4
energy use

energy used by a product then measured from the mains power supply over a given period of

time
Note 1 to entry: Energy is measured in kilowatt hour.
3.1.5
external power supply
EPS

equipment contained in a separate physical enclosure external to the computer casing and

designed to convert mains power supply to lower d.c. voltage(s) for the purpose of powering

the computer
Note 1 to entry: This note applies to the French language only.
Note 2 to entry: The EPS is sometimes referred to as an a.c. brick.

Note 3 to entry: A reference to a document which outlines the testing procedures for measuring EPS efficiencies

(External Power Supply Efficiency Test Method) can be found in the Bibliography.
3.1.6
internal power supply
IPS

component contained in the same physical enclosure to the computer casing and designed to

convert mains power supply to lower d.c. voltage(s) for the purpose of powering the computer

Note 1 to entry: This note applies to the French language only.

Note 2 to entry: A reference to a document which outlines the testing procedures for measuring IPS efficiencies

(Generalized Internal Power Supply Efficiency Test Protocol) can be found in the Bibliography.

3.1.7
local area network
LAN
computer network located on a user’s premises within a limited geographical area
[SOURCE : IEC 60050-732:2010, 732-01-04]
Note 1 to entry: This note applies to the French language only.

Note 2 to entry: Currently the two primary technologies used in computers are IEEE 802.3 Ethernet or Wired LAN,

and IEEE 802.11 WiFi or Wireless LAN.
3.1.8
manufacturer

organization responsible for the design, development and production of a product in view of

its being placed on the market, regardless of whether these operations are carried out by that

organization itself or on its behalf
3.1.9
red green blue
RGB
primary colours that make up a pixel on a computer display

Note 1 to entry: The RGB values represent the intensity settings of each colour of that pixel to specify an exact

colour.
---------------------- Page: 14 ----------------------
SIST EN 62623:2013
62623 © IEC:2012 – 9 –
3.1.10
typical energy consumption
TEC

number for the consumption of energy of a computer that is used to compare the energy

performance of like computers, which focuses on the typical energy consumed by an EUT for

a given profile while in normal operation during a representative period of time
Note 1 to entry: This note applies to the French language only.

Note 2 to entry: For desktops and notebook computers, the key criterion of the TEC approach is a value for

typical annual energy use, measured in kilowatt-hours (kWh), using measurements of average operational mode

power levels scaled by an assumed typical duty cycle that represent annualized use for a profile.

3.1.11
actual energy consumption
TEC measured using P
work
Note 1 to entry: The actual energy consumption is referenced as TEC .
actual
3.1.12
estimated energy consumption
TEC estimated by substituting P for P
sidle work
Note 1 to entry: The estimated energy consumption is referenced as TEC .
estimated
Note 2 to entry: P is defined in detail in 4.2.
sidle
Note 3 to entry: P is defined in detail in 4.2.
work
3.1.13
duty cycle attributes
the percentage of time the EUT spends in each of its individual power modes

Note 1 to entry: Examples of duty cycle attributes are defined in 3.1.13.1 to 3.1.13.6.

3.1.13.1
off component of duty cycle
off
percentage of time the EUT is in the off mode
3.1.13.2
sleep component of duty cycle
T and T
sleep sleepWoL
percentage of time the EUT is in the sleep modes
3.1.13.3
on components of duty cycle
percentage of time the EUT is in the on mode
Note 1 to entry: The T duty cycle is equal to the sum of the T + T + T .
on work sidle idle
3.1.13.4
short idle component of duty cycle
sidle
percentage of time the EUT is in the short idle mode
3.1.13.5
long idle component of duty cycle
idle
percentage of time the EUT is in the long idle mode
---------------------- Page: 15 ----------------------
SIST EN 62623:2013
– 10 – 62623 © IEC:2012
3.1.13.6
active component of duty cycle
work
percentage of time the EUT is in the active (work) mode
3.1.14
user of the test results
entity that will utilise the test results to apply to their needs

Note 1 to entry: Examples of such an entity are voluntary agreement owners, regulators, private companies, etc.

3.1.15
wake on LAN
WoL

functionality that allows a computer to wake from sleep or off when directed by a network

request via Ethernet
Note 1 to entry: This note applies to the French language only.
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
ACPI Advanced Configuration and Power Interface
NOTE 1 ACPI specification can be found here: http://www.acpi.info/.
CF Crest Factor
CFR Crest Factor Ratio
CPU Central Processing Unit
EPS External Power Supply
EUT Equipment Under Test

NOTE 2 Also referred to as product in this standard and sometimes referred to as UUT (Unit Under

Test) in other specifications.
FB_BW Frame Buffer Bandwidth
HDD Hard Disk Drive
IPS Internal Power Supply
LAN Local Area Network
MCF Meter Crest Factor
MCR Maximum Current Ratio
OS Operating System
PAPR Profil
...