ENERGY STAR Symbol

ENERGY STAR®
Qualifying Criteria for Set-top-Boxes

Version 3.0

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Products sold in Canada must meet all Canadian regulatory and safety requirements. Eligible equipment is to be qualified by the U.S. (EPA).

These criteria are the same as the program requirements published on the U.S. ENERGY STAR web site and are provided as information only. Administered by Natural Resources Canada’s Office of Energy Efficiency, the ENERGY STAR program in Canada uses the term Participant to designate companies, organizations and stakeholders who promote the use of the ENERGY STAR mark on products or in promotional and marketing material and activities. This technical specification was modified to include this change. The use of the term Participant is similar in scope to that of Partner, which is used by the EPA ENERGY STAR Program.

In order to promote ENERGY STAR qualified Set-top Boxes in Canada, manufacturers are required to sign a Memorandum of Understanding (MOU) with the US Environmental Protection Agency (EPA). We encourage manufacturers, retailers and distributors to sign a Participant Administrative Arrangement with Natural Resources Canada to take advantage of promotional and communications opportunities provided by the program. More information.

Please note that the U.S. EPA has made changes to the ENERGY STAR qualification process, in particular to include mandatory third party testing. You can find more information about those changes on the following web site: http//www.energystar.gov.

Following is the Version 3.0 of the ENERGY STAR qualifying criteria for Set-top Boxes. The EPA and Natural Resources Canada both reserve the right to revise the specification should technological and/or market changes affect its usefulness to consumers or industry or its impact on the environment. A product must meet all of the identified criteria to earn the ENERGY STAR registered trademark

1) Definitions

Product Type (Base Type)

The primary means of access to video content for a STB. All base types may be configured as a simple STB that provides a single primary function, or as part of a complex STB that provides a primary function and one or more additional functionalities.

  1. Cable
    A STB whose primary function is to receive television signals from a broadband, hybrid fiber/coaxial, or community cable distribution system with conditional access (CA) and deliver them to a consumer display, thin-client/remote STB, and/or recording device.
  2. Satellite
    A STB whose primary function is to receive television signals from satellites and deliver them to a consumer display, thin-client/remote STB, and/or recording device.
  3. Cable Digital Transport Adapter (DTA)
    A minimally-configured STB whose primary function is to receive television signals from a broadband, hybrid fiber/coaxial, or community cable distribution system and deliver them to a consumer display and/or recording device.
  4. Internet Protocol (IP)
    A STB whose primary function is to receive television/video signals encapsulated in IP packets and deliver them to a consumer display, thin-client/remote STB,  and/or recording device.
  5. Terrestrial
    A STB whose primary function is to receive television signals over the air (OTA) or via community cable distribution system without conditional access (CA) and deliver them to a consumer display, thin-client/remote STB, and/or recording device.
  6. Thin-client / Remote
    A STB that (1) is designed to interface between a Multi-room STB and a TV (or other output device), (2) has no ability to directly interface with a Service Provider, and (3) relies solely on a Multi-room STB for content. Any STB that meets the definition of a cable, satellite, IP, or terrestrial STB is not a thin-client/remote STB.

Product Features

  1. Base Functionality
    The primary functionality that defines the ENERGY STAR criteria applicable to a particular STB. Base Functionality is one of the following: Cable, Satellite, IP, Terrestrial or Thin-Client/Remot
  2. Additional Functionality
    1. Advanced Video Processing
      The capability to encode, decode, and/or transcode audio/video signals in accordance with standards H.264/MPEG 4 or SMPTE 421M.
    2. CableCARD
      The capability to decrypt premium audio/video content and services and provide other network control functions via a plug-in conditional access module that complies with the ANSI/SCTE 28 HOST-POD Interface Standard*.* http://www.scte.org/standards/
    3. Digital Video Recorder (DVR)
      The capability to store video in a digital format to a rewritable disk drive or other non-volatile storage device integrated into a STB. This definition excludes video capture software for personal computers or server-based DVR capabilities.
    4. DOCSIS®
      The capability to distribute data and audio/video content over cable television infrastructure in accordance with the CableLabs® Data Over Cable Service Interface Specification**. **http://www.cablelabs.com/specifications/
    5. High Definition (HD) Resolution
      The capability to transmit or display video signals with resolution greater than or equal to   720p.
    6. Home Network Interface
      The capability to interface with external devices over a high bandwidth network (e.g., IEEE 802.11 (WiFi), MoCA, HPNA). For purposes of this specification 580 Booth, IEEE 802.3 wired Ethernet is not considered a Home Network Interface.
    7. Multi-room
      The capability to provide independent audio/video content to multiple devices within a single family dwelling. This definition does not include the capability to manage gateway services for multi-subscriber scenarios.
    8. Multi-stream
      The capability to deliver two or more simultaneous audio/video streams to a consumer display, thin-client/remote STB, or recording device.  The simultaneous streams may be delivered via a physically separate input or via the primary input. This definition does not include out-of-band tuners.
    9. Removable Media Player
      The capability to decode digitized audio/video signals on DVD or Blu-ray Disc optical media.
    10. Removable Media Player / Recorder
      The capability to decode and record digitized audio/video signals on DVD or Blu-ray Disc optical media.

Automatic Power Down (APD)

The capability of a device to switch itself from On mode to Sleep mode after a predetermined period of time (APD timing) has elapsed. APD timing begins when the following criteria have been met:

  1. The device has ceased performance of all primary functions; or
  2. The last user input has been received (e.g., remote control signal, volume adjustment).

Primary Function

  1. Delivery of live or recorded audio/video content to a thin-client/remote STB or local/remote recording device is considered a primary function;
  2. Delivery of live or recorded audio/video content to a consumer display within 4 hours of last user interaction/input is considered a primary function;
  3. Continuous device functions (e.g., clocks, status displays, indicator lamps) are NOT considered primary functions.

Operational Modes

  1. On Mode
    Where the product is connected to a mains power source, has been activated and may be providing one or more primary functions. The common terms “active”, “in-use” and “normal operation” also describe this mode.
  2. Sleep Mode
    Where the product is connected to a mains power source, is not providing a primary function, and offers one or more of the following user oriented or protective functions which may persist for an indefinite time:
    1. To facilitate the activation of other modes (including activation or deactivation of On mode) by remote switch (including remote control), internal sensor, timer;
    2. Continuous function: information or status displays including clocks;
    3. Continuous function: sensor-based functions.
  3. Deep Sleep State
    A power state within Sleep Mode characterized by reduced power consumption and increased time required to return to full On Mode functionality.

Other Definitions

  1. Service Provider
    A business entity that provides audio/video content to subscribers with whom it has an ongoing contractual relationship. A Service Provider distributes ENERGY STAR qualified STBs to end users under a lease or rental arrangement.
  2. Conditional Access
    The encryption, decryption, and authorization techniques employed to protect content from unauthorized viewing. CableCARD and Downloadable Conditional Access System (DCAS) are examples of conditional access technology.
  3. Digital Television Adapter (DTA)
    A device that receives terrestrial (over the air) digital signals and converts them to an analog output suitable for analog TVs. DTAs do not provide digital signal output. This definition does not include converters for satellite or cable digital signals or devices that perform multiple functions (e.g., DVD players with DTA capability).
  4. Game Console
    A stand-alone device whose primary function is to process video game content. The primary inputs for game consoles are special hand-held controllers rather than the mouse and keyboard used by a conventional computer. Game consoles are equipped with audio/video outputs for use with televisions as the primary display, rather than an external monitor or integrated display.  Game consoles typically do not use a conventional general-purpose operating system, but often perform a variety of multimedia functions such as: DVD/CD playback, digital picture viewing, and digital music playback.
  5. Out-of-band Tuner
    A tuner compliant with standards ANSI/SCTE 55-1 2002, ANSI/SCTE 55-2 2002, or similar, that is used to gain access to data channels outside of the primary audio/video source signal. These tuners may facilitate two-way communication to allow a STB to exchange data (e.g., diagnostics) with the Service Provider, and may enable access to Pay-Per-View or other rich-media interactive content.
  6. Typical Energy Consumption (TEC)
    A means for evaluating energy efficiency through a calculation of expected energy consumption or a typical user over a one year period, expressed in units of kWh/year.
  7. Unit Under Test (UUT)
    The device being tested.

Product Family

A group of product models that are (1) made by the same manufacturer, (2) subject to the same ENERGY STAR qualification criteria, and (3) of a common basic design.  Product models within a family differ from each other according to one or more characteristics or features that either (1) have no impact on product performance with regard to ENERGY STAR qualification criteria, or (2) are specified herein as acceptable variations within a product family. For Set-top Boxes, acceptable variations within a product family include aesthetic housing changes that do not affect the thermal characteristics of the device (e.g., color, labeling, or other cosmetic modifications).

2) Scope

2.1 Included Products

2.1.1

Products that meet the definition of a Set-top Box Base Type as specified herein are eligible for ENERGY STAR qualification, with the exception of products listed in Section 2.2.

2.2 Excluded Products

2.2.1

Products that are covered under existing ENERGY STAR product specifications are not eligible for qualification under the STB specification.  The list of specifications currently in effect can be found at .oee.nrcan.gc.ca

3) Qualification Criteria

3.1 Significant Digits and Rounding

3.1.1

All calculations shall be performed with actual measured or observed values.  Only the final result of a calculation shall be rounded.  Calculated results shall be rounded to the nearest significant digit as expressed in the corresponding specification limit.

3.1.2

Unless otherwise specified, compliance with specification limits shall be evaluated using exact values without any benefit from rounding.

3.2 General Qualification Criteria

3.2.1

External Power Supply

If a product is shipped with an EPS, the EPS shall meet the level V performance requirements under the International Efficiency Marking Protocol and include the level V marking. Additional information on the Marking Protocol is available at oee.nrcan.gc.ca

3.2.2

Maintenance Activities

  1. Products may automatically exit Sleep Mode and/or Deep Sleep State on a regular schedule to download content, scan for program and schedule information, and perform maintenance activities. The total time spent performing maintenance activities shall not exceed an average of two hours in any 24-hour period, exclusive of activities scheduled by the end-user (e.g., video recording of a regularly scheduled program). Video downloads that are not user-requested (e.g., “speculative recording”, or “push”) shall be counted against the two hour average per day requirement.
  2. Products that have exited Sleep Mode or Deep Sleep State and completed maintenance or other user-requested activities shall automatically return to Sleep Mode or Deep Sleep State in less than 15 minutes.
  3. Products that provide a speculative recording function shall provide a user-accessible menu option to permit users to disable the functionality. Instructions for disabling speculative recording shall be included in printed and/or electronic product manuals.

3.2.3

Auto Power Down (APD)

Products that offer an APD feature shall meet the following requirements:

  1. Products shall be shipped from the manufacturer with APD enabled by default, with APD timing set to engage after a period of inactivity less than or equal to 4 hours.
  2. All energy-related default settings shall persist until an end-user chooses to manually either (1) disable APD, or (2) modify the default settings.

3.2.4

Deep Sleep

  1. For a power state to qualify as a Deep Sleep, measured power consumption (PDEEP_SLEEP) shall be less than or equal to 15% of the power consumption in On Mode (as measured per the ENERGY STAR test procedure for “Watching Live TV” [PTV]), or 3.0 watts, whichever is greater.
  2. For STBs with a user interface, a means of manually activating Deep Sleep shall be accessible to the end user via a clearly marked button or switch on the remote control and/or the front face of the STB. Alternative button configurations will be acceptable with written approval from EPA.
  3. For STBs with no user interface (e.g., "set-back boxes") and for STBs that can switch between power states only via external network stimuli (e.g., thin client remote STBs) to qualify for ENERGY STAR Deep Sleep benefits; Deep Sleep functionality shall be enabled by default upon shipment to the end user, and shall be initiated automatically via timer or other means not requiring direct end user manipulation of the device (e.g., detecting demand of a downstream device via HDMI link, network message). Alternate means of detection/communication must be broadly applicable and not limited to a specific brand of TV or downstream device.
  4. If Deep Sleep capability is enabled in the as-shipped default product configuration, an override function may be provided to allow the end-user to disable Deep Sleep functionality.

3.3  Typical Energy Consumption (TEC) Requirements

3.3.1

Combined TEC (TECCOMBINED), as determined in Section 3.3.2 shall be less than or equal   to the Maximum TEC Requirement (TECMAX), as determined in Section 3.3.3.

3.3.2

Combined TEC shall be calculated per Equation 1.

Equation 1: Calculation of Combined TEC (TECCOMBINED)

TEC COMBINED = TEC PRIMARY + TEC PLAY/REC

Where:

  • TECPRIMARY is the Primary TEC calculated per Equation 2; and
  • TECPLAY/REC is the Playback/Record TEC calculated per Equation 3.
  1. Primary TEC (TEC PRIMARY) shall be calculated per Equation 2.

    Equation 2: Calculation of Primary TEC (TEC PRIMARY)

    TECPRIMARY = 0.365 x ((TTV x PTV )+ (TSLEEP x PSLEEP) + (TAPD X PAPD) + ( TDEEP_SLEEP X  PDEEP_SLEEP))

    Where:

    • TTV is the time coefficient for On Mode, as determined per Table 1;
    • PTV is the measured power in On Mode (W);
    • TSLEEP is the time coefficient for Sleep Mode, as determined per Table 1;
    • PSLEEP is the measured power in Sleep Mode (W);
    • TAPD is the time coefficient for APD, as determined per Table 1;
    • PAPD is the measured power after APD (W);
    • TDEEP_SLEEP  is the time coefficient for Deep Sleep State, as determined per Table 1; and
    • PDEEP_SLEEP is the measured power in Deep Sleep State (W).

    Table 1: Primary TEC Equation Time Coefficients

    APD to Sleep Enabled by Default APD to Deep Sleep Enabled by Default TTV TSLEEP TAPD TDEEP_SLEEP
    NO NO 14 10 0 0
    NO YES 14 6 0 4
    YES NO 7 10 7 0
    YES YES 7 6 7 4

  2. For products with DVR, Removable Media Playback, or Removable Media Playback / Record capabilities, Playback/Record TEC (TECPLAY/REC) shall be calculated per Equation 3, with weightings for Playback and Record mode as specified in Table 2.  Only one playback/record function may be selected per product. For all other products, Playback/Record TEC (TECPLAY/REC) shall be equal to zero.

Equation 3: Calculation of Playback/Record TEC (TECPLAY/REC)
For Products with DVR or Removable Media Player

TECPLAY/REC = 0.365 x [((PPLAYBACK -- PTV) x HPLAYBACK) + ((PRECORD -- PTV) x HRECORD)] ,

Where:

  • PPLAYBACK is the measured power during recorded video playback (W);
  • PRECORD is the measured power during video recording (W); and
  • HPLAYBACK and HRECORD are weightings for time spent in playback and record, as specified in Table 3.
Table 2: Weightings for Playback/Record TEC Calculation

Function DVR Removable Media Playback Removable Media Playback w/ Record
Playback Duration (HPLAYBAC) 2.0 hrs/day 2.0 hrs/day 2.0 hrs/day
Record Duration (HRECORD) 3.0 hrs/day 0 1.0 hrs/day

3.3.3

The Maximum TEC Requirement (TECMAX) shall be calculated per Equation 4.

Equation 4: Calculation of Maximum TEC Requirement (TECMAX)

Equation 4: Calculation of Maximum TEC Requirement (TECMAX)

Where:

  • TECBASE_MAX is the Base Type TEC Allowance (kWh); and
  • TECADDL_i is each applicable Additional Functionality TEC Allowance (kWh).
  1. The Base Type TEC Allowance (TECBASE_MAX) shall be as specified in Table 3, subject to the following requirements:
    1. If the STB meets the definition of Cable DTA base type, the Base Functionality shall be CABLE DTA.
    2. If the STB meets the definition of Cable STB base type, and/or the STB is capable of receiving cable service after installation of a CableCARD or other type of conditional access system, the Base Functionality shall be CABLE.
    3. If the STB Base Functionality is not CABLE, and the STB meets the base type definition of Satellite STB, the Base Functionality shall be SATELLITE.
    4. If the STB Base Functionality is not CABLE, SATELLITE, or CABLE DTA, and the STB meets the base type definition of IP STB, the Base Functionality shall be IP.
    5. If the STB Base Functionality is not CABLE, SATELLITE, CABLE DTA, or IP, and the STB meets the base type definition of Terrestrial STB, the Base Functionality shall be TERRESTRIAL.
    6. If the STB Base Functionality is not CABLE, SATELLITE, CABLE DTA, IP, or TERRESTRIAL, and the STB otherwise meets the base type definition of Thin-Client/Remote, the Base Functionality shall be THIN-CLIENT / REMOTE.

    Table 3: Base Type TEC Allowance (TECBASE_MAX)

    Base Functionality Version 3.0
    Allowance
    (kWh/year)
    Cable 60
    Satellite 70
    Cable DTA 35
    Internet Protocol (IP) 50
    Terrestrial 22
    Thin-client / Remote 35

  2. Additional Functionality TEC Allowances (TECADDL_i) shall be as specified in Table 4, subject to the following requirements:
    1. The HIGH DEFINITION allowance is the only additional functionality allowance that may be applied to STBs with CABLE DTA base functionality.
    2. The ADVANCED VIDEO PROCESSING, HOME NETWORK INTERFACE, HIGH DEFINITION, REMOVABLE MEDIA PLAYER, and REMOVABLE MEDIA PLAYER/RECORDER allowances are the only additional functionality allowances that may be applied to STBs with THIN CLIENT / REMOTE base functionality.
    3. The ADVANCED VIDEO PROCESSING allowance may only be applied once per STB, regardless of the number of advanced video processing options offered by the device.
    4. The CableCARD allowance may only be applied once per STB, regardless of the number of CableCARDs installed in the STB.
    5. The DOCSIS allowance may only be applied to STBs that are installed in a Service Provider network with DOCSIS capability.
    6. The HIGH DEFINITION (HD) allowance shall not be applied to STBs with TERRESTRIAL base functionality.
    7. The MULTI-ROOM allowance may only be applied once per STB, regardless of the number of remote outputs served by the device.
    8. The MULTI-ROOM allowance may not be combined with the HOME NETWORK INTERFACE allowance on a single device.
    9. The MULTI-STREAM allowances may only be applied once per STB, regardless of the number of simultaneous streams supported by the device.

    Table 4: Additional Functionality TEC Allowance (TECADDL_i)

    Additional Functionality Version 3.0
    Allowance
    (kWh/year)
    Advanced Video Processing 12
    CableCARD 15
    Digital Video Recorder (DVR) 45
    DOCSIS® 20
    High Definition (HD) 25
    Home Network Interface 10
    Multi-room 40
    Multi-stream – Cable/Satellite 16
    Multi-stream – Terrestrial/IP 8
    Removable Media Player 8
    Removable Media Player / Recorder 10

3.4 Products with Multi-room Capability:

3.4.1

Products with Multi-room capability shall be evaluated for ENERGY STAR qualification per the following requirements:

  1. If the Combined TEC for the product as tested in single-output configuration is less than or equal to the Maximum TEC Requirement minus the Multi-room additional functionality allowance, the product may be qualified for ENERGY STAR for use in any configuration (e.g., single-TV installations or multi-room installations).
  2. For products that can support a second N/ATSC display output over standard RF cabling without the need for a Thin Client, if the Combined TEC for the product as tested in dual-output configuration is less than or equal to the Maximum TEC Requirement plus one half (50%) of the Thin Client / Remote base functionality allowance, the product may be qualified for ENERGY STAR in a Multi-room configuration. The Participant shall clearly indicate in product literature that the product qualifies for ENERGY STAR only when providing content to more than one TV.
  3. For products that can support a second display output via a Thin Client, if the Combined TEC for the product as tested in dual-output configuration is less than or equal to the Maximum TEC Requirement, the product may be qualified for ENERGY STAR in a Multi-room configuration.  Partner shall clearly indicate in product literature that the product qualifies for ENERGY STAR only when providing content to more than one TV.

4) Test Requirements

4.1  Test Methods

4.1.1

When testing Set-top Box products, the test methods identified in Table 5 shall be used to determine ENERGY STAR qualification.


Table 5: Test Methods for ENERGY STAR Qualification

Product Type Test Method
All Products ENERGY STAR Test Method for Set-top Boxes, Rev. Jan-2011

4.2 Number of Units Required for Testing

4.2.1

Representative Models shall be selected for testing per the following requirements:

  1. For qualification of an individual product model, a product configuration equivalent to that which is intended to be marketed and labeled as ENERGY STAR is considered the Representative Model;
  2. For qualification of a product family, any product configuration within a family may be considered the Representative Model.

4.2.2

A single unit of each Representative Model shall be selected for testing.  If test results for any operational mode power measurement are within 5% of ENERGY STAR requirements, two additional units of the same Representative Model with an identical configuration shall be tested.

4.2.3

All tested units shall meet ENERGY STAR qualification requirements.

4.3  International Market Qualification

4.3.1

Products shall be tested for qualification at the relevant input voltage/frequency combination for each market in which they will be sold and promoted as ENERGY STAR.

5) User Interface

5.1

Partners are encouraged to design products in accordance with the user interface standard IEEE P1621: Standard for User Interface Elements in Power Control of Electronic Devices Employed in Office/Consumer Environments. For details, see http://eetd.LBL.gov/Controls

6) Effective Date

6.1

Effective Date

The Version 3.0 ENERGY STAR Set-top Box specification shall take effect on the dates specified in Table 6.  To qualify for ENERGY STAR, a product model shall meet the ENERGY STAR specification in effect on its date of manufacture. The date of manufacture is specific to each unit and is the date (e.g., month and year) on which a unit is considered to be completely assembled.

6.2

Future Specification Revisions

EPA reserves the right to change this specification should technological and/or market changes affect its usefulness to consumers, industry, or the environment. In keeping with current policy, revisions to the specification are arrived at through stakeholder discussions.  In the event of a specification revision, please note that the ENERGY STAR qualification is not automatically granted for the life of a product model.


Table 6: Specification Effective Dates

Product Type Version 3.0
Effective Date
All Products September 1, 2011

7) Future Specification Revisions

7.1 
EPA intends to investigate the following topics during the next revision of the STB specification:
  1. Delete the removable media playback/record options from the TEC assessment due to lack of relevance to the STB market.
  2. Implement a mandatory Deep Sleep requirement for all qualifying STBs.
  3. Address potential new STB base types such as “Gateway STBs.”

TEST METHOD

1  Overview

The following test method shall be used for determining product compliance with requirements in the ENERGY STAR Eligibility Criteria for Set-top Boxes.

2  Applicability

The test procedures herein are applicable to all Set-top Box products under the ENERGY STAR program. The test procedures in Section 7 are intended to be performed in the sequence that is presented in this document, as applicable, except for products with Multi-room capability, which can begin with Section 7.9.

  • Test procedures in Section 7.1 and 7.6 are applicable to all products.
  • Test procedures in Section 7.2 and 7.3 are applicable to products with DVR capability.
  • Test procedures in Section 7.4 and 7.5 are applicable to products with Removable Media Player capability.
  • Test procedures in Section 7.7 are applicable to products with APD functionality.
  • Test procedures in Section 7.8 are applicable to products with Deep Sleep functionality.
  • Test procedures in Section 7.9 are applicable to products with Multi-room capability.

3  Definitions

Unless otherwise specified, all terms used in this document are consistent with the definitions in the ENERGY STAR Eligibility Criteria for Set-top Boxes.

4  Test Setup

  1. Test Setup and Instrumentation
    Test setup and instrumentation for all portions of this procedure shall be in accordance with the requirements in Canadian Standards Association (CSA) C380-08, Section 4, unless otherwise noted in this document.  In the event of conflicting requirements, the ENERGY STAR test method shall take precedence.
  2. Input Power
    Input power shall be as specified in Table 7.


    Table 7: Input Power Requirements

    Market Voltage Voltage Tolerance Maximum Total Harmonic Distortion Frequency Frequency Tolerance
    North America, Taiwan 115 Vac +/- 1.0 % 2.0 % 60 Hz +/- 1.0 %
    Europe, Australia, New Zealand 230 Vac +/- 1.0 % 2.0 % 50 Hz +/- 1.0 %
    Japan 100 Vac +/- 1.0 % 2.0 % 50 Hz/
    60 Hz
    +/- 1.0 %

  3. Ambient Temperature
    Ambient temperature shall be from 18 °C to 28 °C.
  4. Relative Humidity
    Relative humidity shall be from 10% to 80%.
  5. Power Meter
    Power meters shall possess the following attributes***:
    *** Characteristics of approved meters derived from IEC 62301 Ed 1.0.
    1. Crest Factor
      Capability to measure the current waveform without clipping. 
      1. The peak of the current waveform measured during Sleep Mode and On Mode shall determine the crest factor rating requirement and the appropriate current range setting
      2. The full-scale value of the selected current range multiplied by the crest factor for that range shall be at least 15% greater than the peak current.
    2. Bandwidth
      Minimum bandwidth as determined by an analysis of current and voltage to determine the highest frequency component (harmonic) with a magnitude greater than 1% of the fundamental frequency under the test conditions.
    3. Minimum Frequency Response
      3.0 kHz;
    4. Minimum Sampling Frequency
      60 Hz;
    5. Minimum Resolution
      1. 0.01 W for measurement values less than 10 W;
      2. 0.1 W for measurement values from 10 W to 100 W; and
      3. 1.0 W for measurement values greater than 100 W.
  6. Measurement Accuracy
    1. Power measurements with a value greater than or equal to 0.5 W shall be made with an uncertainty of less than or equal to 2% at the 95% confidence level.
    2. Power measurements with a value less than 0.5 W shall be made with an uncertainty of less than or equal to 0.01 W at the 95% confidence level.
  7. Power Measurement Location
    All power measurements shall be taken at a point between the AC mains power source and the UUT.
  8. Source Signals
    The following Reference Channels shall be used for testing. For STBs without conventional tuners (e.g., IP STBs), equivalent video content, from a source representative of typical consumer usage, shall be substituted for each channel described below.
    1. Reference Channel A
      Network television channel, standard definition (SD) format, minimum 480i resolution.
    2. Reference Channel B
      Live or recorded sports channel;
      1. If the STB is HD-capable, this channel shall be in HD format, minimum 720p resolution.
      2. If the STB is not HD-capable, this channel shall be in SD format, minimum 480i resolution.
    3. Reference Channel C
      24-hour news channel, standard definition (SD) format, minimum 480i resolution.

5  Test Conduct

  1. UUT Settings
    The UUT shall be tested in its “as-shipped” configuration. For products that offer a choice of user-configurable options, all options shall be set to their default condition.
  2. UUT Control
    The UUT shall be controlled with the factory-supplied remote control (I/R or RF) to the extent possible.  For units that do not ship with a remote control, or for functions that cannot be exercised with the supplied remote control, control interfaces on the face or body of the UUT may be used.
  3. Tuning
    Tuning to a broadcast video source shall entail the following:
    1. Acquisition of an encrypted digital video service by one tuner; and
    2. Rendering of the acquired video service on all analog audio/video outputs (e.g., RF modulated, S-Video, composite, and component) and on all S/PDIF audio outputs, as applicable.
  4. Satellite Low Noise Block (LNB)
    Incremental power required to operate LNBs shall be supplied from an independent source.  If LNB power must be drawn from the STB, the power consumed by the LNB may be subtracted from the total power measurement. It is preferable that all LNB power be supplied independently of the STB.
  5. Head-end System Interaction
    1. STBs with POD/CableCARD-encrypted content shall decrypt by POD/CableCARD.
    2. Cable STBs shall interact with Conditional Access (CA) system data via DOCSIS Set-top Gateway (DSG) or SCTE-55.
    3. Telcocom QAM/IP STBs shall interact with CA system data via SCTE-55 and/or via an applicable LAN technology (e.g., MoCA).
    4. IP STBs shall interact with CA system data via applicable LAN technology (e.g., IEEE-802.3, MoCA).
    5. Satellite STBs shall interact with CA system via LNB and POTS modem or applicable Home Network Interface as defined in the ENERGY STAR specification.
    6. Terrestrial STBs shall interact with an ATSC signal from a live source.
  6. Secondary Device Functions
    1. The following UUT functions shall be tested in their “as-shipped” configuration (i.e., if the functions are enabled by default upon shipment, they must be enabled for testing):
    2. WiFi, unless video streaming over WiFi is the primary means of content delivery;
    3. Voice Over IP (VOIP); and
    4. Data services that are made available to the end-user (e.g., broadband services).
  7. Conditional Access
    If the UUT uses POD or CableCARD for CA system control, conditional access hardware shall be installed in the UUT prior to applying power.
  8. Battery Powered Devices
    For products designed to operate using batteries when not connected to the mains, the battery shall be fully charged before beginning the test and left in place for the test.
  9. A/V Interconnections
    If the UUT offers several audio and video interconnection options, select and configure the system with one of the following interconnections, in order of preference: HDMI, component, S-video, and composite.
  10. Untested Features
    Any features not identified in this test procedure shall be configured in their “as-shipped” configuration.
  11. Power Management
    Any power management capability that reduces the power consumption of inactive features may be enabled as it would be when deployed to an end-user under the same conditions.
  12. Home Network Interface
    If the UUT supports more than one type of home network interface, one interface link shall be connected and available for data transfer during testing.  For multi-room devices, the selected link type shall be able to support multiple client device access.  STBs sold at retail shall be tested in the default as-shipped configuration.  For leased or multi-room STBs, the interface shall be selected in the following order of precedence:
    1. MoCA
    2. HPNA
    3. WiFi
    4. Other

6  UUT Pre-test Initialization

  1. Prior to the start of testing, the UUT shall be initialized as follows:
    1. Set up the UUT per the instructions in the supplied operating manual.
    2. Connect the UUT to a display device via an A/V Interconnection as specified above (e.g., HDMI).
    3. Connect the power meter to the power source and connect the UUT to the power outlet on the power meter.
    4. Power on the UUT with the remote control and perform initial system configuration, as applicable. Ensure that UUT features and functions are in their as-shipped configuration.
    5. Connect the UUT to the signal source.
    6. Let the UUT sit for at least 15 minutes, or until the unit has completed initialization and is ready for use.
    7. Measure and record the AC mains input voltage and frequency.
    8. Measure and record the test room ambient temperature.

7  Test Procedures

7.1 Watching Live TV (PTV)

  1. Verify that the UUT is turned on and tuned to a live television channel.
    1. If the UUT base type is IP, and the UUT does not have the capability to play back live, streaming video content (i.e., the UUT is a “download-only” device), the Live TV portion of the test procedure shall be performed while video content is simultaneously being played back and downloaded.
    2. If the UUT offers DVR functionality, the Live TV portion of the test procedure shall be performed with the primary video stream paused for 5%, in fast forward for 10% and in rewind for 10% of the total test time, while raw video input is simultaneously being buffered. This requirement does not increase the total test duration.
  2. Tune to Reference Channel A.
  3. Measure and record the average power over a 5-minute period.
  4. Tune to Reference Channel B (if the UUT is HD capable, Reference Channel B should be in HD format).
  5. Measure and record the average power over a 10-minute period.
  6. Tune to Reference Channel C.
    1. If the UUT has the ability to handle multiple simultaneous video streams, set a second tuner to Reference Channel A and render it simultaneously in a second window embedded in the primary display window (i.e., Picture-in-Picture).
    2. The second window shall be as near to 25% of the total display screen area as possible. 
    3. If no picture-in-picture capability exists, the second channel shall be recorded in the background.
  7. Measure and record the average power over a 5-minute period.
  8. Calculate and record the average power (PTV) over the three measurement periods.
  9. If the UUT offers place-shifting capability, repeat the Live TV test with the place-shifting feature turned on. Record the individual power measurement results from the place shifting test

7.2  Recording Live TV to DVR (PRECORD)

  1. This portion of the test procedure shall be performed with a second tuner engaged and recording at all times.  It is permissible to create a series of pre-programmed back-to-back recording sessions for these tests to avoid menu prompts.
  2. Verify that the UUT is turned on and tuned to a live television channel.
  3. Tune to Reference Channel A.
  4. Measure and record the average power over a 5-minute period.
  5. Tune to Reference Channel B (if the UUT is HD capable, Reference Channel B should be in HD format).
  6. Measure and record the average power over a 10-minute period.
  7. Tune to Reference Channel C.
  8. Measure and record the average power over a 5-minute period.
  9. Calculate and record the average power (PRECORD) over the three measurement periods.
  10. Save the recordings for the Playback test.

7.3  Playing Back Recorded TV from DVR (PPLAYBACK)

  1. Verify that the UUT is turned on and tuned to a live television channel.
    1. If the UUT base type is IP, and the UUT does not have the capability to play back live, streaming video content (i.e., the UUT is a “download-only” device), this portion of the test procedure shall be performed with video playback from disk storage and no simultaneous file download.
    2. If the UUT offers DVR functionality, this portion of the test procedure shall be performed with the primary video stream paused for 5%, in fast forward for 10%, and in rewind for 10% of the total test time, while raw video input is simultaneously being buffered.  In addition, this portion of the test procedure shall be performed with a second tuner engaged and recording at all times.
  2. Use the remote control to begin playback of the recording of Reference Channel A.
  3. Measure and record the average power over the playback period.
  4. When playback is complete, delete the recording. If automatically prompted to delete, select the affirmative prompt.
  5. Use the remote control to begin playback of the recording of Reference Channel B.
  6. Measure and record the average power over the playback period.
  7. When playback is complete, delete the recording. If automatically prompted to delete, select the affirmative prompt.
  8. Use the remote control to begin playback of the recording of Reference Channel C.
  9. Measure and record the average power over the playback period.
  10. When playback is complete, delete the recording. If automatically prompted to delete, select the affirmative prompt.
  11. Calculate and record the average power consumption (PPLAYBACK) over the three measurement periods.

7.4  Recording Live TV to Removable Media (PRECORD)

  1. Verify that the UUT is turned on and tuned to Reference Channel A.
  2. Begin the power measurement.
  3. Use the remote control to activate the UUT’s removable media recording function.
  4. Insert the removable media. Open and close the disc tray, as necessary.
  5. Use the remote control to begin recording to the removable media.
  6. Record the video content for 20 minutes.
  7. Use the remote control to stop recording and eject the removable media.
  8. Measure and record the average power consumption (PRECORD) for the full duration of the test.
  9. If the UUT is capable of recording HD content, repeat the test with an HD video stream that meets the requirements of Reference Channel B. Calculate and record the average power (PRECORD) over the two measurement periods.

7.5  Playing Back Recorded TV from Removable Media (PPLAYBACK)

  1. Verify that the UUT is turned on and tuned to Reference Channel A.
  2. Begin the power measurement.
  3. Use the remote control to activate the UUT’s removable media playback function. Note that if this function is automatically activated when the removable media door is actuated, or when a disc is inserted, this step of the test procedure may be omitted.
  4. Insert the removable media.  Open and close the disc tray, as necessary.
  5. Use the remote control to begin playback of removable media video content.  Note that if playback begins automatically upon insertion of removable media, this step of the test procedure may be omitted.
  6. Play the recording for 20 minutes.
  7. Use the remote control to stop playback and eject the removable media.
  8. Measure and record the average power consumption (PPLAYBACK) over the full duration of the test.
  9. If the UUT is capable of playing back HD content, repeat the test with an HD video stream that meets the requirements of Reference Channel B.  Calculate and record the average power (PPLAYBACK) over the two measurement periods.

7.6  Sleep Mode (PSLEEP)

  1. Verify that the UUT is turned on and tuned to Reference Channel A.  Ensure that at least the “Watching Live TV” tests have been completed immediately prior to the start of this portion of the test procedure.
  2. Use the remote control to place the system into Sleep Mode.
  3. Begin the power measurement.
  4. Measure and record the average power consumption (PSLEEP) over a 5-minute period.

7.7  Auto Power Down (PAPD)

  1. Verify that the UUT is turned on and tuned to Reference Channel A.
  2. Allow the UUT to automatically power down to Sleep Mode.
  3. Verify that the UUT is in the expected Sleep Mode.
  4. Begin the power measurement.
  5. Measure and record the average power consumption (PAPD) over a 5-minute period.

7.8  Deep Sleep State (PDEEP_SLEEP)

  1. Verify that the UUT is turned on and tuned to Reference Channel A.
  2. Allow the UUT to automatically power down to Sleep Mode and transition to Deep Sleep State, or manually initiate Deep Sleep State.
  3. Verify that the UUT is in the expected Deep Sleep State.
  4. Begin the power measurement.
  5. Measure and record the average power consumption (PDEEP_SLEEP) over a 5-minute period.

7.9  Multi-room and Client STB

If a multi-room-capable UUT can qualify without a multi-room additional functionality allowance, the UUT shall only be tested in a single-display configuration, per Sections 7.1 through 7.8. Otherwise, the UUT shall be tested in a multi-room configuration. A client STB, if required by the multi-room STB, shall also be tested in a multi-room configuration, as follows:

  1. Attach a single remote STB (or client device such as a television) to the server STB in a standard multi-room configuration.
  2. Tune the server STB to Reference Channel A, and ensure that Reference Channel A is displaying on the primary local video output of the server STB.
  3. Begin recording Reference Channel A on the server STB, and allow recording to continue for the duration of testing.
  4. Test the remote STB according to sections 7.1 through 7.8 of this test procedure, as applicable.
  5. Measure and record power consumption of both the server STB and the remote STB, as applicable, for all tests that are performed.