EN IEC 62087-3:2023

Audio, video, and related equipment - Determination of power consumption - Part 3: Television sets

IEC 62087-3:2023 is available as IEC 62087-3:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62087-3:2023 specifies the determination of the power consumption and related characteristics of television sets. Television sets include, but are not limited to, those with LCD, OLED, or projection technologies. The operating modes and functions, as they specifically apply to television sets, are defined in detail in this part of IEC 62087. This document is limited to television sets that can be connected to an external power source. Television sets that include a non-removable, main battery are not covered by this document. Television sets can include any number of auxiliary batteries. The measuring conditions in this document represent the normal use of the equipment and can differ from specific conditions, for example as specified in safety standards. IEC 62087-3:2023 cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) it introduces measuring procedures for the determination of power consumption in the On mode while viewing static metadata HDR video content; b) all tests for On mode power determination are performed with MDD disabled; c) only progressive video signals are used for testing; d) a dimmable LED reflector lamp is used as a light source for illuminating the ABC sensor to achieve specific illuminance levels; e) a dynamic box and outline video signal is used for determining the ratio of peak luminance.

Audio-, Video- und verwandte Geräte - Messverfahren für die Leistungsaufnahme - Teil 3: Fernsehgeräte

Appareils audio, vidéo et matériel connexe - Détermination de la consommation de puissance - Partie 3: Téléviseurs

IEC 62087-3:2023 est disponible sous forme de IEC 62087-3:2023 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 62087-3:2023 spécifie la détermination de la consommation de puissance et des caractéristiques associées des téléviseurs. Les téléviseurs comprennent notamment ceux qui utilisent les technologies LCD (Liquid-Crystal Display), OLED (Organic Light-Emitting Diode) ou de projection. Les modes de fonctionnement et les fonctions, dans la mesure où ils s'appliquent de façon spécifique à des téléviseurs, sont définis en détail dans la présente partie de l'IEC 62087. Le présent document est limité aux téléviseurs qui peuvent être connectés à une source d'alimentation externe. Les téléviseurs qui comportent une batterie principale non amovible ne sont pas couverts par le présent document. Les téléviseurs peuvent comporter un nombre quelconque de batteries auxiliaires. Les conditions de mesure du présent document sont représentatives de l'usage normal du matériel et peuvent différer des conditions particulières, comme celles spécifiées dans les normes de sécurité. L'IEC 62087-3:2023 annule et remplace la première édition parue en 2015. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) elle inclut des procédures de mesure pour déterminer la consommation de puissance en mode Marche lors du visionnage d'un contenu vidéo HDR qui utilise des métadonnées statiques; b) la fonction MDD est désactivée lors de tous les essais de détermination de la puissance en mode Marche; c) seuls des signaux vidéo progressifs sont utilisés pour les essais; d) une lampe à réflecteur LED à intensité réglable est utilisée comme source de lumière pour éclairer le capteur ABC afin d'obtenir des niveaux d'éclairement spécifiques; e) des signaux vidéo de boîte et de contour dynamiques sont utilisés pour déterminer le rapport de luminance de crête.

Avdio, video in pripadajoča oprema - Ugotavljanje porabe energije - 3. del: Televizijski sprejemnik (IEC 62087-3:2023)

General Information

• Status: Published
• Publication Date: 30-Mar-2023
• ICS: 33.160.10 - Amplifiers
• 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 - Publishing
• Start Date: 31-Mar-2023
• Due Date: 22-Apr-2022
• Completion Date: 31-Mar-2023
• Ref Project: SIST EN IEC 62087-3:2023 - Audio, video, and related equipment - Determination of power consumption - Part 3: Television sets (IEC 62087-3:2023)

Relations

• Replaces: EN 62087-3:2016 - Audio, video, and related equipment - Determination of power consumption - Part 3: Television sets
• Effective Date: 26-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 62087-3:2022
01-september-2022
Avdio, video in pripadajoča oprema - Ugotavljanje porabe energije - 3. del:
Televizijski sprejemnik (TA 19)

Audio, video, and related equipment - Determination of power consumption - Part 3:

Television sets (TA 19)
Appareils audio, vidéo et matériel connexe - Détermination de la consommation de
puissance - Partie 3: Téléviseurs (TA 19)
Ta slovenski standard je istoveten z: prEN IEC 62087-3:2022
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
33.160.25 Televizijski sprejemniki Television receivers
oSIST prEN IEC 62087-3:2022 en,fr,de

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

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oSIST prEN IEC 62087-3:2022
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oSIST prEN IEC 62087-3:2022
100/3772/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62087-3 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-07-01 2022-09-23
SUPERSEDES DOCUMENTS:
100/3668/CD, 100/3729A/CC

IEC TA 19 : ENVIRONMENTAL AND ENERGY ASPECTS FOR MULTIMEDIA SYSTEMS AND EQUIPMENT

SECRETARIAT: SECRETARY:
Germany Mr Andreas Schneider
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:

Audio, video, and related equipment - Determination of power consumption - Part 3: Television

sets (TA 19)
PROPOSED STABILITY DATE: 2027
NOTE FROM TC/SC OFFICERS:

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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1 CONTENTS

2 CONTENTS ............................................................................................................................ 1

3 FOREWORD ........................................................................................................................... 5

4 INTRODUCTION ..................................................................................................................... 7

5 1 Scope .............................................................................................................................. 8

6 2 Normative references ...................................................................................................... 8

7 3 Terms, definitions, and abbreviations .............................................................................. 8

8 3.1 Terms and definitions.............................................................................................. 9

9 3.2 Abbreviations ........................................................................................................ 11

10 4 Specification of operating modes and functions ............................................................. 12

11 4.1 Table of operating modes and functions ................................................................ 12

12 4.2 Configurations and picture settings ....................................................................... 14

13 4.2.1 Conceptual framework ................................................................................... 14

14 4.2.2 Selection of normal configuration ................................................................... 14

15 4.2.3 Selection of retail configuration ...................................................................... 14

16 5 Measurement conditions ................................................................................................ 15

17 5.1 General ................................................................................................................. 15

18 5.2 Power source ........................................................................................................ 15

19 5.3 Environmental conditions ...................................................................................... 15

20 5.4 Ambient light conditions ........................................................................................ 15

21 5.5 Measuring equipment ............................................................................................ 15

22 5.5.1 Power measuring instrument ......................................................................... 15

23 5.5.2 Luminance measuring device ......................................................................... 15

24 5.5.3 Illuminance measuring instrument .................................................................. 15

25 5.6 Signal generation .................................................................................................. 15

26 5.6.1 Equipment ..................................................................................................... 15

27 5.6.2 Interfaces ...................................................................................................... 15

28 5.6.3 Accuracy ....................................................................................................... 15

29 5.6.4 Light source for specific illuminance levels .................................................... 16

30 5.6.5 Light source for disabling the ABC feature ..................................................... 16

31 5.6.6 Test table surface material ............................................................................ 16

32 6 Procedures .................................................................................................................... 16

33 6.1 Order of activities ................................................................................................. 16

34 6.2 Preparation ........................................................................................................... 18

35 6.2.1 Measuring plan .............................................................................................. 18

36 6.2.2 Power source voltage and frequency ............................................................. 18

37 6.2.3 Input terminals ............................................................................................... 18

38 6.2.4 Video signal, On mode power consumption procedure ................................... 19

39 6.2.5 Video signal, peak luminance ratio determination .......................................... 19

40 6.2.6 Video format .................................................................................................. 19

41 6.2.7 Automatic brightness control capabilities ....................................................... 20

42 6.2.8 Automatic brightness control levels ................................................................ 20

43 6.2.9 Motion-based Dynamic Dimming .................................................................... 21

44 6.2.10 Network connection selection ........................................................................ 21

45 6.3 Initial activities ...................................................................................................... 22

46 6.3.1 Order of initial activities ................................................................................. 22

47 6.3.2 Main batteries ................................................................................................ 22

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48 6.3.3 Plug-in module .............................................................................................. 22

49 6.3.4 Installation ..................................................................................................... 23

50 6.3.5 Application of input signals ............................................................................ 23

51 6.3.6 Luminance measuring device setup ............................................................... 23

52 6.3.7 Light source setup ......................................................................................... 23

53 6.3.8 Power on ....................................................................................................... 26

54 6.3.9 UUT firmware update ..................................................................................... 26

55 6.3.10 TV settings .................................................................................................... 26

56 6.4 Determination of power consumption, On mode .................................................... 27

57 6.4.1 Order of activities .......................................................................................... 27

58 6.4.2 Stabilization ................................................................................................... 28

59 6.4.3 Television sets without automatic brightness control enabled by default ........ 29

60 6.4.4 Television sets with automatic brightness control enabled by default ............. 29

61 6.4.5 Power measurement ...................................................................................... 29

62 6.5 Determination of peak luminance ratio and power factor ....................................... 31

63 6.5.1 General ......................................................................................................... 31

64 6.5.2 Activities for peak luminance ratio and power factor determination ................ 32

65 6.6 Determination of power consumption, Partial On mode ......................................... 35

66 6.6.1 General ......................................................................................................... 35

67 6.6.2 Order of activities .......................................................................................... 35

68 6.6.3 AV inputs ....................................................................................................... 35

69 6.6.4 Standby-passive ............................................................................................ 35

70 6.6.5 Standby-active, low ....................................................................................... 36

71 6.7 Determination of power consumption, Off mode .................................................... 37

72 6.7.1 Connections and networking .......................................................................... 37

73 6.7.2 Availability ..................................................................................................... 37

74 6.7.3 Measurement ................................................................................................. 37

75 Annex A (informative) Considerations for On mode television set power measurements ...... 38

76 A.1 General ................................................................................................................. 38

77 A.2 Illuminance levels for automatic brightness control ............................................... 38

78 A.3 Weighting of automatic brightness control levels ................................................... 38

79 A.4 Calculating On mode power consumption.............................................................. 39

80 A.5 Picture level adjustments ...................................................................................... 40

81 Annex B (normative) Test report .......................................................................................... 41

82 Annex C (informative) Example test report template ............................................................ 43

83 Annex D (informative) Representative Test Tools ................................................................ 46

84 Annex E (normative) Measurement process overview .......................................................... 47

85 Bibliography .......................................................................................................................... 49

87 Figure 1 – Configurations and picture settings, conceptual framework .................................. 14

88 Figure 2 – Recommended order of activities ......................................................................... 17

89 Figure 3 – Order of initial activities ....................................................................................... 22

90 Figure 4 – Light source configuration .................................................................................... 24

91 Figure 5 – Wall Mounted TV with Built-in ABC Sensor........................................................... 25

92 Figure 6 – Wall Mounted TV with External ABC Sensor ......................................................... 25

93 Figure 7 – Order of activities for determining power consumption, On mode ......................... 28

94 Figure 8 – Order of activities for determining peak luminance ratio and power factor ............ 33

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95 Figure 9 – Order of activities for determining the power consumption, Partial On mode ........ 35

96 Figure E.1 – Comprehensive measurement process flow chart ............................................. 48

98 Table 1 – Operating modes and functions ............................................................................. 13

99 Table 2—Network Connection Hierarchy ............................................................................... 21

100
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101 INTERNATIONAL ELECTROTECHNICAL COMMISSION
102 ____________
103
104 AUDIO, VIDEO, AND RELATED EQUIPMENT –
105 DETERMINATION OF POWER CONSUMPTION –
106
107 Part 3: Television sets
108
109 FOREWORD

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

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

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

113 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

114 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their

115 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

116 may participate in this preparatory work. International, governmental and non-governmental organizations liaising

117 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

118 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

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

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

121 interested IEC National Committees.

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

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

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

125 misinterpretation by any end user.

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

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

128 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

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

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

131 services carried out by independent certification bodies.

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

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

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

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

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

137 Publications.

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

139 indispensable for the correct application of this publication.

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

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

142 IEC 62087-3 has been prepared by technical area 19: Environmental and energy aspects for

143 multimedia systems and equipment, of IEC technical committee 100: Audio, video and

144 multimedia systems and equipment. It is an International Standard.

145 This second edition of IEC 62087-3 cancels and replaces the first edition published in 2015.

146 This edition constitutes a technical revision.

147 This edition includes the following significant technical changes with respect to the previous

148 edition:

149 – It introduces measuring procedures for the determination of power consumption in the On

150 mode while viewing static metadata HDR video content.

151 – All tests for On Mode power determination shall be performed with MDD disabled. If MDD

152 cannot be disabled, the unit must be tested in the brightest selectable preset picture

153 settings.
154 – Only progressive video signals are used for testing.
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155 – As light source for illuminating the ABC sensor to achieve specific illuminance levels a

156 dimmable LED reflector lamp shall be used.

157 – For determining the ratio of peak luminance, a dynamic box and outline video signal shall

158 be used.
159 The text of this standard is based on the following documents:
FDIS Report on voting
100/xxxx/FDIS 100/xxxx/RVD
160

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

162 voting indicated in the above table.

163 The language used for the development of this International Standard is English. A list of all

164 parts in the IEC 62087 series, published under the general title Audio, video, and related

165 equipment – Determination of power consumption, can be found on the IEC website.

166 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

167 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

168 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

169 described in greater detail at www.iec.ch/standardsdev/publications.

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

171 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

172 the specific publication. At this date, the publication will be
173 • reconfirmed,
174 • withdrawn,
175 • replaced by a revised edition, or
176 • amended.
177
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178 INTRODUCTION

179 This document specifies the determination of the power consumption of television sets for

180 consumer use. It is used in conjunction with IEC/CDV 62087-2:2022 (ED2), which specifies

181 signals and media.

182 This document includes measuring procedures for the determination of power consumption in

183 the On (operation) mode, which was identified as “On (average) mode” in previous editions of

184 IEC 62087. Additionally, it specifies measuring procedures for the determination of power

185 consumption in the Off mode and Partial On mode. This standard also defines the determination

186 of the peak luminance ratio for use associated with television set power consumption evaluation

187 as well as the power factor. It also defines measuring procedures for the determination of power

188 consumption in the On mode while viewing representative static metadata HDR video content.

189 A verification procedure to assess product compliance is described in Annex A of

190 IEC 62087-1:2015.
191 The IEC 62087 series consists of the following planned or published parts:
192 – Part 1: General
193 – Part 2: Signals and media
194 – Part 3: Television sets
195 – Part 4: Video recording equipment
196 – Part 5: Set top boxes
197 – Part 6: Audio equipment
198 – Part 7: Computer monitors
199
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200 AUDIO, VIDEO, AND RELATED EQUIPMENT –
201 DETERMINATION OF POWER CONSUMPTION –
202
203 Part 3: Television sets
204
205
206
207 1 Scope

208 This part of IEC 62087 specifies the determination of the power consumption and related

209 characteristics of television sets. Television sets include, but are not limited to, those with LCD,

210 OLED, or projection technologies.

211 The operating modes and functions, as they specifically apply to television sets, are defined in

212 detail in this part of IEC 62087.

213 This document is limited to television sets that can be connected to an external power source.

214 Television sets that include a non-removable, main battery are not covered by this document.

215 Television sets may include any number of auxiliary batteries.

216 The measuring conditions in this document represent the normal use of the equipment and may

217 differ from specific conditions, for example as specified in safety standards.

218 2 Normative references

219 The following documents are referred to in the text in such a way that some or all of their content

220 constitutes requirements of this document. For dated references, only the edition cited applies.

221 For undated references, the latest edition of the referenced document (including any

222 amendments) applies.

223 IEC 62087-1:2015, Audio, video, and related equipment – Determination of power

224 consumption – Part 1: General

225 IEC/CDV 62087-2:2022, Audio, video, and related equipment – Determination of power

226 consumption – Part 2: Signals and media

227 IEC 62301:2011, Household electrical appliances – Measurement of standby power

228 3 Terms, definitions, and abbreviations

229 For the purposes of this document, the terms and definitions given in IEC 62087-1:2015,

230 IEC/CDV 62087-2:2022 and in the following apply.

231 ISO and IEC maintain terminological databases for use in standardization at the following

232 addresses:
233 • IEC Electropedia: available at http://www.electropedia.org/
234 • ISO Online browsing platform: available at http://www.iso.org/obp
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235 3.1 Terms and definitions
236 3.1.1
237 television set
238 TV

239 equipment for the reception and display of television broadcast and similar services for

240 terrestrial, cable, satellite and broadband network transmission of analogue and/or digital

241 signals

242 Note 1 to entry: A television set can include additional functions that are not required for its basic operation.

243 3.1.2
244 forced menu

245 on-screen menu that requires the user to choose a configuration option when a television set

246 is first setup or after a factory reset

247 Note 1 to entry: For example, a forced menu may offer the user the option to select either “Normal” / “Home” or

248 “Retail” / “Store” configuration.
249 Note 2 to entry: See Figure 1.
250 3.1.3
251 normal configuration
252 setting intended to be chosen for home use from the forced menu

253 Note 1 to entry: Subclause 4.2.2 describes the selection of normal configuration from the forced menu. This

254 configuration selection is generally named “normal”, “home”, “standard”, or equivalent.

255 Note 2 to entry: See Figure 1 and 3.1.16.
256 3.1.4
257 default configuration

258 manufacturer’s recommended configuration for television sets without a forced menu

259 Note 1 to entry: See Figure 1.
260 3.1.5
261 retail configuration
262 forced menu selection intended for use in a retail environment

263 Note 1 to entry: Subclause 4.2.3 describes the selection of retail configuration from the forced menu. This

264 configuration selection is generally recommended by the manufacturer for presentation in a public space when the

265 television set is offered for sale and might be named “retail”, “store”, “shop”, or equivalent.

266 Note 2 to entry: See Figure 1.
267 3.1.6
268 preset picture setting
269 common set of manufacturer-defined parameters which differ in their settings

270 Note 1 to entry: Examples of paraments of preset picture settings are brightness, contrast, colour space, chroma

271 control.
272 3.1.7
273 selectable preset picture setting

274 TV picture setting that is selectable by a user from a set of manufacturer-defined picture settings

275 Note 1 to entry: See Figure 1.
276 3.1.8
277 default picture setting

278 picture setting for television sets in the normal or default configuration that is highlighted, or if

279 none highlighted, the picture setting first available for user selection
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280 Note 1 to entry: See Figure 1. The HDR default picture setting (if different than the default picture setting) is the

281 one that the TV enters when HDR video is played from the starting point of the SDR default picture setting.

282 3.1.9
283 brightest selectable preset picture setting

284 user selectable, preset picture setting that produces the highest luminance picture in the normal

285 or default configuration
286 Note 1 to entry: See Figure 1.
287 3.1.10
288 overall brightest preset picture setting

289 either the retail picture setting or the brightest selectable preset picture setting, whichever

290 produces the highest luminance picture
291 Note 1 to entry: See Figure 1.
292 3.1.11
293 retail picture setting
294 selectable preset picture setting intended for use in a retail environment
295 Note 1 to entry: See Figure 1.
296 3.1.12
297 motion-based dynamic dimming
298 MDD

299 television feature that adjusts luminance in response to amount of motion in the displayed image

300 3.1.13
301 special function

302 function that is related to, but not required for, the basic operation of the device

303 Note 1 to entry: Examples of special functions include, but are not limited to, special sound processing, power

304 saving functions (e.g. automatic brightness control).

305 Note 2 to entry: Refer to definition of television set (TV) for basic operation.

306 3.1.14
307 conditional access

308 encryption, decryption, and authorization techniques employed to protect content from

309 unauthorized viewing
310 3.1.15
311 conditional access module
312 plug-in module that enables conditional access
313 3.1.16
314 plug-in module
315 device that plugs into television sets to provide additional functionality
316 3.1.17
317 point of deployment module
318 conditional access module for digital signal reception
319 3.1.18
320 category 5e cable
321 twisted pair cable used for computer networks
322 Note 1 to entry: See IEC 61156-5 and IEC 61156-6.
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323 3.1.19
324 neutral density filter
325 ND filter

326 optical device that is designed to reduce the light intensity equally over the range of visible

327 wavelengths
328 3.1.20
329 quick start

330 function that reduces the television’s resume time from partial on mode to on mode

331 Note 1 to entry: Resume time is measured per section 6.6.1.
332 3.2 Abbreviations
333 ABC automatic brightness control
334 AV audio-visual
335 BD Bl
...