IEC 62087-5:2015

IEC 62087-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio, video and related equipment – Determination of power consumption –
Part 5: Set top boxes (STB)
Appareils audio, vidéo et matériel connexe – Détermination de la consommation
de puissance –
Partie 5: Boîtiers décodeurs
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IEC 62087-5 ®
Edition 1.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio, video and related equipment – Determination of power consumption –

Part 5: Set top boxes (STB)
Appareils audio, vidéo et matériel connexe – Détermination de la consommation

de puissance –
Partie 5: Boîtiers décodeurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.10 ISBN 978-2-8322-5400-4

– 2 – IEC 62087-5:2015 © IEC 2015
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 6
3.1 Terms and definitions . 6
3.2 Abbreviations . 8
4 Specification of operating modes and functions . 8
4.1 General . 8
4.2 Auto power down function . 8
5 Measuring conditions for set top boxes (STBs) . 9
5.1 Overview of a set top box. 9
5.2 Input signal . 10
5.2.1 General . 10
5.2.2 RF test signal . 10
5.2.3 Broadband input signal . 10
5.3 Input terminals . 11
5.3.1 Analogue terrestrial input terminal . 11
5.3.2 Cable television input terminal . 11
5.3.3 Digital terrestrial input terminal . 11
5.3.4 Satellite input terminal . 11
5.4 Measurement procedure . 11
5.4.1 General measuring conditions . 11
5.4.2 Stabilization . 11
5.4.3 Environmental conditions . 11
5.4.4 Setup . 12
5.4.5 Power measurements . 12
Annex A (informative) General information on STB technology . 15
A.1 General . 15
A.2 Background on STB technology . 15
A.3 Testing recording and time shift functions . 16
Bibliography . 18

Figure 1 – Auto power down function . 14
Figure A.1 – Block diagram of the common functional parts of an STB . 15
Figure A.2 – Time shift recording with single tuner . 16
Figure A.3 – Single tuner multifunction record and playback . 16

Table 1 – Operating modes and functions . 9
Table 2 – Matrix for multituner STBs . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUDIO, VIDEO AND RELATED EQUIPMENT –
DETERMINATION OF POWER CONSUMPTION –

Part 5: Set top boxes (STB)
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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 62087-5 has been prepared by technical area 12: AV energy
efficiency and smart grid applications, of IEC technical committee 100: Audio, video and
multimedia systems and equipment.
This bilingual version (2018-02) corresponds to the monolingual English version, published in
2015-06.
This first edition of IEC 62087-5 cancels and replaces Clause 8 of IEC 62087:2011. This
standard together with IEC 62087-1 to IEC 62087-4 and IEC 62087-6 cancels and replaces
IEC 62087:2011. This International Standard constitutes a technical revision.
This edition does not include any significant technical changes with respect to Clause 8 of
IEC 62087:2011. It was developed as a member of the new multipart series of IEC 62087
standards.
– 4 – IEC 62087-5:2015 © IEC 2015
The text of this standard is based on the following documents:
FDIS Report on voting
100/2470/FDIS 100/2500/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.
The French version of this standard has not been voted upon.
A list of all parts in the IEC 62087 series, published under the general title Audio, video, and
related equipment – Determination of power consumption, can be found on the IEC website.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
INTRODUCTION
This part of IEC 62087 specifies methods for measurement of the power consumption of set
top boxes for consumer use.
IEC 62087:2011 (third edition) revises methods for measuring power consumption of set top
boxes in the On mode and Partial On modes. These modes correspond to the active modes
which are defined in IEC 62542:2013.
This standard has been divided into multiple parts. At the time of publication of this part, the
following parts are planned or published:
– Part 1: General
– Part 2: Signals and media
– Part 3: Television sets
– Part 4: Video recording equipment
– Part 5: Set top boxes (STB)
– Part 6: Audio equipment
—————————
IEC 62087:2011, Methods of measurement for the power consumption of audio, video and related equipment

– 6 – IEC 62087-5:2015 © IEC 2015
AUDIO, VIDEO AND RELATED EQUIPMENT –
DETERMINATION OF POWER CONSUMPTION –

Part 5: Set top boxes (STB)
1 Scope
This part of IEC 62087 specifies methods of measurement for the power consumption of set
top boxes (STBs). It specifies the different modes of operation which are relevant for
measuring power consumption.
The methods of measurement are applicable only for equipment which can be connected to
the mains.
The measuring conditions in this standard represent the normal use of the equipment and
may differ from specific conditions, as specified, for example, in safety standards.
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.
IEC 60107-1:1997, Methods of measurement on receivers for television broadcast trans-
missions – Part 1: General conditions – Measurements at radio and video frequencies
IEC 62087-1:2015, Audio, video, and related equipment – Methods of measurement for power
consumption – Part 1: General
IEC 62216:2009, Digital terrestrial television receivers for the DVB-T system
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
additional functions
functions that are not required for the basic operation of the equipment
3.1.2
buffering
temporary storage of video and audio streams in some form of memory in order to perform
time shifting functions
3.1.3
cable TV STB
STB whose principal function is to receive and decode television signals from a broadband,
hybrid fiber/coaxial, community cable distribution system and deliver them to a display and/or
recording device
3.1.4
conditional access module
plug-in module that enables conditional access
3.1.5
data over the cable service interface specification
DOCSIS
international suite of standards that define interface requirements for cable modems involved
in high-speed data and video/audio content distribution over cable television systems
3.1.6
internet protocol TV STB
STB whose principal function is to receive and decode television/video signals encapsulated
in IP packets and to deliver them to a display and/or recording device
3.1.7
multi-room STB
STB that is capable of providing 2 or more independent video and audio streams either direct
to display devices or to thin clients/remote
3.1.8
satellite TV STB
STB whose principal function is to receive and decode television signals from satellites and
deliver them to a display and/or recording device
3.1.9
set top box
STB
equipment for the reception of television and related services (e.g. radio) from terrestrial,
cable, satellite, or broadband networks which are decoded and delivered to a display and/or
recording device
3.1.10
special functions
functions that are related to, but not required for, the basic operation of the device
3.1.11
television set
TV
equipment for the reception and display of television broadcast and similar services for
terrestrial, cable, satellite and broadband network transmission of analogue and/or digital
signals
Note 1 to entry: A television set may include additional functions that are not required for its basic operation.
3.1.12
terrestrial TV STB
STB whose principal function is to receive and decode television signals over the air (OTA)
and deliver them to a display and/or recording device
3.1.13
thin-client STB
remote STB
STB that is designed to interface between a multi-room capable STB and a TV (or other
output device) that has no ability to interface with the service provider directly and relies
solely on a multi-room box STB for content
Note 1 to entry: Any STB that meets the definition of cable TV, satellite TV, Internet protocol TV or terrestrial TV
STB is not a thin-client/remote STB.

– 8 – IEC 62087-5:2015 © IEC 2015
3.1.14
time shifting
capability of a device to allow playback type functions with real time broadcast
Note 1 to entry: Such functions may include fast forward, review (rewind), pause and slow motion.
3.1.15
video recording equipment
equipment for the recording and reproduction of video and audio signals on a recording
medium
EXAMPLES Video cassette recorder (VCR) and digital versatile disc (DVD) player or recorder.
Note 1 to entry: Equipment with only playback function is included as well.
3.2 Abbreviations
′ Prime
AC Alternating Current
TM
BD Blu-ray Disc
DC Direct Current
DVD Digital Versatile Disc
IP Internet Protocol
HD High Definition (720 p or better)
HDD Hard Disk Drive
LNB Low Noise Block converter
MPEG Moving Picture Experts Group
OTA Signals Over the Air
RF Radio Frequency
SD Standard Definition
STB Set Top Box
UUT Unit Under Test
VCR Video Cassette Recorder
4 Specification of operating modes and functions
4.1 General
Table 1 contains the operating modes and functions for set top boxes.
4.2 Auto power down function
An auto power down feature may be implemented on a STB to power down into a Partial On
mode after a predetermined time. Such a feature should be referred to as auto power down.
—————————
Blu-ray Disc™ is a trade mark of the Blu-ray Disc Association. This information is given for the convenience of
users of this document and does not constitute an endorsement by IEC of the product named.

Table 1 – Operating modes and functions
Power Mode Sub-mode Function(s) Description
0 W Disconnected Disconnected Disconnect The equipment is disconnected
from all external power sources.
≥0 W Off Off Off The equipment is connected to an
external power source and provides
no functions that depend on a
power source. The equipment
cannot be switched into any other
mode with the remote control unit,
or an external or internal signal.
Note that some power may be
consumed if an EMC filter or other
components exist on the source
side of the power switch.
>0 W Partial On Standby-passive – Wake on The equipment is connected to an
external power source and does not
– remote control
provide its primary functions. The
equipment can be switched into
– internal signal
another mode with the remote
control unit or an internal signal,
but not with an external signal.
Standby-active, – Wake on The equipment is connected to an
low external power source and does not
– remote control
provide its primary functions. The
equipment can be switched into
– internal signal
another mode with the remote
– external signal control unit, an internal signal, or
an external signal.
Standby-active, – Wake on The equipment is connected to an
high external power source and does not
– remote control
provide its primary functions. The
equipment can be switched into
– internal signal
another mode with the remote
– external signal control unit, an internal signal, or
an external signal. Additionally, the
– Data
equipment is exchanging/ receiving
communications
data with/from an external source.
On On-play Playing a programme The equipment is connected to a
from an HDD, solid power source and plays the tape.
state memory, or other The optical disc inside the
media equipment.
On-broadcast Pictures and sound from The equipment is performing the
a broadcast function of providing a viewer with
video and audio from a broadcast.
On-record Recording a programme The equipment is connected to a
from a broadcast power source and records a signal
from an external or internal source.
On-multifunction Recording The equipment is performing
multifunction “On-play” and/or “On-
Playing back
record” simultaneously.
5 Measuring conditions for set top boxes (STBs)
5.1 Overview of a set top box
STBs are devices that perform the task of providing audio, video and related services from
various broadcast, narrowcast and broadband platforms. They can exist as stand alone
devices or as an integral part of a network. Although originally they were analogue in nature
more recently, STBs are typically associated with digital television services.

– 10 – IEC 62087-5:2015 © IEC 2015
Recent STBs have included various enhanced functionality such as recording. The measuring
method described in this clause only covers STBs that have either HDDs or solid state
memory for recording. In the case of solid state memory this method covers the STB whether
or not the memory is removable. STBs with removable media, apart from solid state memory,
are not covered by this method.
5.2 Input signal
5.2.1 General
In general terms, input signals shall be of the strength and quality for the type of broadcast
system on which the STB is intended to be used. Where an STB supports multiple broadcast
systems, it shall be tested for each broadcast system in which it operates. Each measured
result shall be described in the report. In some circumstances, the dynamic broadcast-content
video may be suitable for use as the video and audio test signal content but will need to be
multiplexed and modulated as stated in 5.2.2 below.
5.2.2 RF test signal
5.2.2.1 General
For digital terrestrial, satellite and cable TV STBs, the test signal shall be comprised of a
multiplexed transport stream modulated with parameters that reflect the typical environment in
which the STB will be used. The video and audio components of the transport stream shall be
as described in 5.2.2.2 and 5.2.2.3. For analogue terrestrial TV, satellite TV and cable TV
STBs, the signal should be typical of the type of signal the STB is designed to receive.
5.2.2.2 Video test signal
The STB shall be tested using an appropriate input signal. This input signal should be at the
highest resolution that the STB is capable of decoding using the most processing intensive
advanced decoding standard of the intended broadcast system(s) that the STB will be used
on. A description of the signal used for the test shall be included in the test report. This
description shall include at a minimum, resolution, frame rate and bit rate.
If the STB under test is an HD decoder, additional testing may also be conducted with an SD
input signal.
Where the STB is operating in a download or recording mode, the input should contain
content that simulates material that would typically be downloaded or recorded.
Where an STB has a conditional access system, it should be tested whilst decoding encrypted
content.
Where an STB can record other services than the one being watched, the test signal should
contain sufficient services to enable this feature to be tested.
5.2.2.3 Audio test signal
The STB shall be tested using an appropriate input signal. The audio test signal should have
the maximum data rate (bit/s).
The audio format used during the power measurement shall be described in the report.
5.2.3 Broadband input signal
An input signal that provides the equivalent multiplexed transport stream as an appropriate
internet protocol (IP) broadband signal conforming to the defined video and audio test
signalling (5.2.2.2 and 5.2.2.3).

5.3 Input terminals
5.3.1 Analogue terrestrial input terminal
In the case that the STB is being tested with an analogue terrestrial RF input signal, the
signals used shall conform to IEC 60107-1:1997, 3.3, and shall have the input signal level set
at –39 dB(mW) when terminated with a 75 Ω resistor or at a level to provide a perceptually
noise free and error free picture.
NOTE –39 dB(mW) corresponds to 70 dB(µV).
5.3.2 Cable television input terminal
In the case that the STB is being tested with a cable television RF input signal, the signals
used shall conform to the cable television specifications for the region, and shall have the
input signal level set at –49 dB(mW) with a termination of 75 Ω resistor or at a level to provide
better than the picture failure point (PF) as defined in IEC 62216:2009 for digital signals or a
perceptually noise free and error free picture or error free for analogue signals.
NOTE –49 dB(mW) corresponds to 60 dB(µV).
5.3.3 Digital terrestrial input terminal
In the case that the STB is being tested with a digital terrestrial RF input signal, the signals
used shall conform to the broadcast specifications for the region, and shall have the input
signal level set at –49 dB(mW) with a termination of 75 Ω resistor or at a level to provide
better than the picture failure point (PF) as defined in IEC 62216:2009 or a perceptually noise
free and error free picture.
5.3.4 Satellite input terminal
In the case that the STB is being tested with a satellite input signal, the input signal level shall
be set at –49 dB(mW) with a termination of 75 Ω resistor or at a level to provide better than
the picture failure point (PF) as defined in IEC 62216:2009 for digital signals or a perceptually
noise free picture or error free for analogue signals.
5.4 Measurement procedure
5.4.1 General measuring conditions
The general measuring conditions including the type of power meters to be used is as per
IEC 62087-1:2015 except where conditions are otherwise specified in this subclause.
5.4.2 Stabilization
The measurements shall be performed after the STB has achieved a stable condition with
respect to power consumption. Refer also to IEC 62087-1:2015.
NOTE There are several ways to consider a STB stable. For example, a STB can be considered stable between
15 min and 30 min after entering into each operation mode. In this case, the time used to stabilize the STB shall be
recorded in the test report. A STB can be also considered stable when any of the results of the same test repeated
are within 2 %.
5.4.3 Environmental conditions
The ambient temperature shall be 23 °C ± 5 °C. Refer also to IEC 62087-1:2015.

– 12 – IEC 62087-5:2015 © IEC 2015
5.4.4 Setup
The STB shall be set up in a manner to simulate a normal operating environment. In this
condition, the measurement shall be made without optional peripheral devices attached to the
device. The input signals to the STBs may be either live signals or generated test streams
that simulate live signals that the STB is designed to receive and decode.
Where a STB can power an LNB of an antenna amplifier this power shall not be included in
the measurement. Where possible, this power supply should be disabled. Where it cannot be
disabled isolation connectors should be used to isolate the power supply.
If required the LNB or antenna amplifier should be powered from an external power source to
the STB.
If possible, any function which may work in background of any On mode function should be
disabled (turned off). If possible, any function which may cause the interruption of any On
mode function should also be disabled (turned off). If they cannot be disabled the
measurement should be scheduled so as to avoid working such background functions during
the measurement.
NOTE Examples of background and/or interrupt functions for any On mode function are:
– background software download/install;
– timer recording;
– automatic deletion of an old TV programme which was recorded.
5.4.5 Power measurements
5.4.5.1 General
The STB under test shall be measured in each applicable mode as specified below. In the
case of HD STBs, testing shall be with an HD input signal. Testing with an SD input signal
may also be conducted. Where the SD test is conducted on an HD STB, the result shall be
recorded as P .
AV_ON_SD
5.4.5.2 On-broadcast
Disable the time shifting function, if possible, and measure the average power consumed for

2 min. Record this as P . Record the time used to measure the average power.
AV_ON
5.4.5.3 On-play
Start a playback of a previously recorded programme on the STB and measure the average
power consumed for a two minute period. Record this as P .

PL
5.4.5.4 On-record
Start or schedule a recording. With the STB recording the programme, measure the average
power consumed for a two minute period. Record this as P .

REC_ON
5.4.5.5 On-multifunction with a single tuner
Set the STB to record a programme while simultaneously playing back a previously recorded
programme and measure the average power consumed for 2 min. Record this as P .

MF_ST
Time shifting is covered in this measurement as this is the case when the STB is playing back
the same programme as it is recording.
NOTE The mechanism for multifunction with a single tuner is the same as for time shift or recording. For this
reason there is no need to measure time shifting and recording separately. See Annex A.

5.4.5.6 On-multifunction with a multi tuner
Table 2 shows the matrix that shall be used to characterize a multituner STB.
Table 2 – Matrix for multituner STBs
nd rd th th
Add 2 Add 3 Add 4 Add n
tuner tuner tuner tuner
Tuner Viewing
recording recording recording recording
a a a
HD or SD HD or SD HD or SD HD or SD
Sequence 1 P SD P P P P
MFA_SD_n MFA_SD_2 MFA_SD_3 MFA_SD_4 MFA_SD_n
Sequence 2 P HD P P P P
MFA_HD_n MFA_HD_2 MFA_HD_3 MFA_HD_4 MFA_HD_n
a
If fitted.
Measure the average power for 2 min for each of the modes in the matrix.
For SD STBs, only sequence 1 shall be performed. For HD STBs, both sequence 1 and
sequence 2 shall be performed.
5.4.5.7 Standby-active, high
If possible, activate a download mode from the primary service and measure the average
power consumed for at least 2 min. This measurement may require information from the

manufacturer and/or service provider to ensure the transport stream contains a suitable
download and instructions on how to set the STB to receive the download. Record this value
as P and record the time used to measure the average power.
SAH
NOTE It may not be possible to place the STB into this mode. If this is the case and the value is still required it
may have to be provided by manufacturer’s declaration.
5.4.5.8 Standby-active, low
To ensure that the STB is in standby-active and not performing any downloading or recording
function, the following procedure should be used.
a) Put the STB into its on mode.
b) If the STB is capable of scheduling a recording then schedule a recording 2 or more hours
in the future.
c) After 5 min in this mode, press the standby or off button on the remote control.
d) Leave the STB for a minimum of 30 min or until higher power mode maintenance activities
within the UUT have been completed.
Measure the average power consumed for at least 2 min. Record this as P . Record the

SAL
time used to measure the average power. Record the time taken to switch to standby-active,
low.
5.4.5.9 Standby-passive
To ensure that the STB is in standby-passive, the following procedure should be used.
a) Put the STB into its on mode.
b) If the STB is capable of scheduling a recording then schedule a recording 2 or more hours
in the future.
c) After 5 min in this mode, press the standby or off button on the remote control.
d) Leave the STB for a minimum of 30 min or until higher power mode maintenance activities
within the UUT activities have been completed.

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Measure the average power consumed for at least 2 min. Record this as P . Record the time

SP
used to measure the average power. Record the time taken to switch to standby-passive.
NOTE The method for determining standby-active low and standby-passive are identical as the switching into
either one of these modes is the same. Which mode the STB actually switches to is determined by the platform in
which the STB is operating. A terrestrial TV STB will be more likely to be in a passive mode and a cable or satellite
TV STB will be more likely to be in a standby-active low mode. Both methods are specified here to be consistent
with the definitions in Table 1.
5.4.5.10 Off
Turn the STB off using the power switch, if available, and measure the average power
consumed for at least 2 min. Record this as P and record the time used to measure the

_OFF
average power
5.4.5.11 Auto power down
If the UUT includes an auto power down feature, use the following procedure to determine the
auto power down interval and the power consumption after auto power down is completed.
(See Figure 1.)
a) Place the UUT in the On mode with the auto power down function enabled. The auto
power down interval is specified by the manufacturer. The auto power down interval
should be reported.
b) Stop any main functions of the UUT and start a timer to determine the auto power down
interval.
c) Allow the UUT to automatically power down.
d) Monitor the power consumption of the UUT until the power consumption stabilizes.
e) Stop the timer and report the auto power down interval.
f) Measure the average power consumed for 2 min. Record this as P .
APD
Auto power down function
Auto power down interval
(determined by the manufacturer)
On mode
power consumption
Possible maintenance
functions in progress
Auto power down
power consumption
Stop any main Auto power Auto power
functions down starts down completed
Elapsed time
IEC
Figure 1 – Auto power down function
Power consumption
Annex A
(informative)
General information on STB technology
A.1 General
This annex covers a number of technology and testing issues that may be helpful as
additional information to that which is contained in Clause 5. Figure A.1 shows a block
diagram of the common functional parts of an STB.
HDD
Tuner 1
A/V
MPEG decoder
output
Tuner n
Ethernet/
Modem
CPU
Broadband
interface
Flash memory
IEC
Figure A.1 – Block diagram of the common functional parts of an STB
A.2 Background on STB technology
STB technology was originally introduced to receive subscription based TV services and
display the content on televisions. The original services were analogue. However, as digital
broadcast technology has been introduced over the last several years STBs have become a
rapidly developing technology for both subscription and free to air terrestrial, cable and
satellite TV services. Most recently STBs have been developed for Internet protocol TV
services.
The range of types now available vary from simple adaptors for terrestrial free to air TV
services to complex multituner types with recording and time slip functions. STBs are now
emerging with removable and non removable solid state memory.

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Due to the rapid rise in STB use, concerns have been raised about the increased energy
consumption by these devices and actions in the form of a number of programmes both
voluntary and regulatory have been implemented.
In IEC 62087:2011 STB measurement methods were revised in response to both the changed
nature of STBs and the need for internationally accepted methods of measurement to
facilitate the development of energy efficiency programmes associated with STBs. STBs
covered by IEC 62087:2011 include STBs with recording capability using non removable
media such as HDDs or solid state memory. It also includes recording capability on removable
TM
solid state memory. DVD recorders and Blu-ray Disc (BD) recorders are excluded from the
scope of this standard.
The measuring method covers both so called simple STBs and also complex STBs. The
distinction between these types of STBs is whether conditional access is deployed in the STB.
The power measurement methods in this standard apply to both types of STBs.
From the perspective of power measurement, Figure A.1 shows the relevant functional
contributors to power consumption for an STB.
A.3 Testing recording and time shift functions
Figure A.2 and Figure A.3 show the data flow for a single tuner time shift function and for
multifunction record and playback.
Demodulator
TV
HDD/Flash
storage
IEC
Figure A.2 – Time shift recording with single tuner
Demodulator
TV
HDD/Flash HDD/Flash
storage storage
IEC
Figure A.3 – Single tuner multifunction record and playback

The diagrams show that essentially it is the same data flow. In the multifunction case, one
programme is being recorded and a second is being played back. These programmes exist on
different parts of the recording media. This is no different than the time shift case. Although it
is only one programme, the physical location of the data being recorded will be different from
the data being played back as a time shift. For this reason, this standard only requires the
measurement of the multifunction mode for a single tuner.

– 18 – IEC 62087-5:2015 © IEC 2015
Bibliography
IEC 61938:2013, Multimedia systems – Guide to the recommended characteristics of
analogue interfaces to achieve interoperability
IEC 62087 (all parts), Audio, video, and related equipment – Methods of measurement for
power consumption
IEC 62087-2:2015, Audio, video, and related equipment – Methods of measurement for
power consumption – Part 2: Signals and media
IEC 62542:2013, Environmental standardization for electrical and electronic products and
systems – Glossary of terms
_____________
– 20 – IEC 62087-5:2015 © IEC 2015
SOMMAIRE
AVANT-PROPOS . 21
INTRODUCTION . 23
1 Domaine d'application . 24
2 Références normatives . 24
3 Termes, définitions et abréviations . 24
3.1 Termes et définitions . 24
3.2 Abréviations . 26
4 Spécification des modes de fonctionnement et fonctions . 27
4.1 Généralités .
...