ENERGY STAR Program Requirements
for Set-top Boxes
DRAFT 2 - Version 2.0
October 5, 2007
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Table of Contents
Partner Commitments
Commitments
Performance for Special Distinction
Eligibility Criteria
Section 1: Definitions
Section 2: Qualifying Products
Section 3: Energy Efficiency and Power Management Criteria
Section 4: Testing Products for ENERGY STAR
Section 5: User Interface
Section 6: Effective Date
Section 7; Future Specification Revisions
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L- NE- KGV SIAR
PAR. Ni'M
ENERGY STAR® Program Requirements
for Set-top Boxes
Partner Commitments
DRAFT 2 - Version 2.0
October 5, 2007
52
Commitment
The following are the terms of the ENERGY STAR Partnership Agreement as it pertains to the
manufacturing of ENERGY STAR qualified set-top boxes. The ENERGY STAR Partner must adhere to
the following program requirements:
•	comply with current ENERGY STAR Eligibility Criteria, defining the performance criteria that must be
met for use of the ENERGY STAR certification mark on set-top boxes and specifying the testing
criteria for set-top boxes. EPA may, at its discretion, conduct tests on products that are referred to as
ENERGY STAR qualified. These products may be obtained on the open market, or voluntarily
supplied by Partner at EPA's request;
•	comply with current ENERGY STAR Identity Guidelines, describing how the ENERGY STAR marks
and name may be used. Partner is responsible for adhering to these guidelines and for ensuring that
its authorized representatives, such as advertising agencies, dealers, and distributors, are also in
compliance;
•	qualify at least one ENERGY STAR set-top box model within 30 days of activating the set-top box
portion of the agreement. When the manufacturing Partner qualifies the product, it must meet the
specification (e.g., Version 2.0, Tier 1) in effect at that time;
•	provide clear and consistent labeling of ENERGY STAR qualified set-top boxes. For all qualified
STBs sold at retail or to service providers participating as ENERGY STAR partners, the ENERGY
STAR mark must be clearly displayed on the product or via electronic notification that meet the
following requirements:
1. On the product via electronic notification that meets the following requirements:
-	The ENERGY STAR mark must appear in cyan, black, or white (as described in "The
ENERGY STAR Identity Guidelines");
-	The ENERGY STAR mark must be at least 10% of the screen by area, may not be smaller
than 76 pixels x 78 pixels, and must be legible;
-	The ENERGY STAR mark must appear for a duration not less than five seconds at power up
and briefly upon power down; and
-	The ENERGY STAR mark must be displayed as part of the auto power down notification.
Product guide and specification sheets for each qualified product must explain the conditions
under which the model is able to earn the ENERGY STAR. Products whose ENERGY STAR
qualification status could be undermined based on service provider interface with the product
should not be labeled with the ENERGY STAR if they are sold to service providers that are not
participants in the ENERGY STAR program.
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Note: EPA welcomes suggestions from stakeholders on the feasibility of the preceding
requirement for electronic labeling. This proposal is being offered as EPA understands that
manufacturers do not necessarily have control over how their products are ultimately configured,
and whether products that meet the ENERGY STAR criteria when shipped will still meet the
criteria after being installed. In particular, EPA would like to understand how feasible it is to
expect that manufacturing partners know if the service providers to whom they sell are ENERGY
STAR partners at the time of product labeling.
EPA also continues to seek feedback on the feasibility of an electronic user interface that allows
consumers to modify the energy settings on their qualified set-top box. This could be a Tier 2
requirement.
2.	In product literature (i.e., user manuals, spec sheets, etc.);
3.	On product packaging for products sold at retail; and
4.	On the manufacturer's Internet site where information about ENERGY STAR qualified models is
displayed;
•	provide to EPA, on an annual basis, an updated list of ENERGY STAR qualified set-top box models.
Once the Partner submits its first list of ENERGY STAR qualified set-top box models, the Partner will
be listed on the ENERGY STAR Web site. Partner must provide annual updates in order to remain on
the list of participating product manufacturers;
•	provide to EPA, on an annual basis, unit shipment data or other market indicators to assist in
determining the market penetration of ENERGY STAR. Specifically, Partner must submit the total
number of ENERGY STAR qualified set-top boxes shipped (in units by model) or an equivalent
measurement as agreed to in advance by EPA and Partner. Partner is also encouraged to provide
ENERGY STAR qualified unit shipment data segmented by meaningful product characteristics (e.g.,
type, presence of additional functions, or other as relevant), total unit shipments for each model in its
product line, and percent of total unit shipments that qualify as ENERGY STAR. The data for each
calendar year should be submitted to EPA, preferably in electronic format, no later than the following
March and may be provided directly from the Partner or through a third party. The data will be used
by EPA only for program evaluation purposes and will be closely controlled. Any information used will
be masked by EPA so as to protect the confidentiality of the Partner;
Note: EPA received comments indicating that the preceding requirement to report shipments by model
was too severe and unnecessary. To date, through five years of collecting data from manufacturers,
EPA has consistently agreed to accept shipment data that is not broken down by model. While we do
not anticipate the need to change this approach, we are inclined to leave the language, which is
standard across all ENERGY STAR product categories. This language remains with the
understanding that any change would be closely coordinated with partners to minimize burden.
• notify EPA of a change in the designated responsible party or contacts for set-top boxes within 30
days.
Performance for Special Distinction
In order to receive additional recognition and/or support from EPA for its efforts within the
Partnership, the ENERGY STAR Partner may consider the following voluntary measures and should keep
EPA informed on the progress of these efforts:
• consider energy efficiency improvements in company facilities and pursue the ENERGY STAR mark
for buildings;
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•	purchase ENERGY STAR qualified products. Revise the company purchasing or procurement
specifications to include ENERGY STAR. Provide procurement officials' contact information to EPA
for periodic updates and coordination. Circulate general ENERGY STAR qualified product information
to employees for use when purchasing products for their homes;
•	feature the ENERGY STAR mark(s) on Partner Web site and in other promotional materials. If
information concerning ENERGY STAR is provided on the Partner Web site as specified by the
ENERGY STAR Web Linking Policy (this document can be found in the Partner Resources section on
the ENERGY STAR Web site at www.enerqvstar.gov). EPA may provide links where appropriate to
the Partner Web site;
•	ensure the power management feature is enabled on all ENERGY STAR qualified monitors and
computers in use in company facilities, particularly upon installation and after service is performed;
•	provide general information about the ENERGY STAR program to employees whose jobs are relevant
to the development, marketing, sales, and service of current ENERGY STAR qualified product
models;
•	provide a simple plan to EPA outlining specific measures Partner plans to undertake beyond the
program requirements listed above. By doing so, EPA may be able to coordinate, communicate,
and/or promote Partner's activities, provide an EPA representative, or include news about the event in
the ENERGY STAR newsletter, on the ENERGY STAR Web pages, etc. The plan may be as simple
as providing a list of planned activities or planned milestones that Partner would like EPA to be aware
of. For example, activities may include: (1) increase the availability of ENERGY STAR qualified
products by converting the entire product line within two years to meet ENERGY STAR guidelines; (2)
demonstrate the economic and environmental benefits of energy efficiency through special in-store
displays twice a year; (3) provide information to users (via the Web site and user's manual) about
energy-saving features and operating characteristics of ENERGY STAR qualified products: and (4)
build awareness of the ENERGY STAR Partnership and brand identity by collaborating with EPA on
one print advertorial and one live press event;
•	provide quarterly, written updates to EPA as to the efforts undertaken by Partner to increase
availability of ENERGY STAR qualified products, and to promote awareness of ENERGY STAR and
its message.
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ENERGY STAR
ENERGY STAR Program Requirements
for Set-top-Boxes
Eligibility Criteria
DRAFT 2 - Version 2.0
October 5, 2007
1) Definitions: Below are the definitions of the relevant terms in this document.
STB Types
All STB types can come as stand-alone tuners or as part of a larger device with other tuners and/or
secondary functions such as, but not limited to, DVR and DVD playback/recording.
A.	Cable STB: A STB whose principal function is to receive television signals from a broadband,
hybrid/[fiber] coaxial, community cable distribution system and deliver them to a consumer display
and/or recording device. Source: CSA C380-06 modified.
B.	Internet Protocol (IP) STB: A STB whose principal function is to receive television/video signals
encapsulated in IP packets and deliver them to a consumer display and/or recording device.
Source: CSA C380-06.
C.	Satellite STB: A STB whose principal function is to receive television signals from satellites and
deliver them to a consumer display and/or recording device. Source: CSA C380-06.
D.	Terrestrial STB: Any STB whose principal function is to receive television signals over the air
(OTA) and deliver them to a consumer display and/or recording device. Source: CSA C380-06.
Components
E.	CableCARD(TM): A plug-in card that complies with the ANSI/SCTE 28 interface that is inserted
into a Digital Cable Ready device to enable the decryption of premium services and provide other
network control functions. Also know as a "Card" or a "Point of Deployment" (POD module).
CableCARD(TM) is a registered trademark of CableLabs®. Source: CSA C380-06 modified.
F.	Conditional Access: The encryption, decryption, and authorization techniques employed to protect
content from unauthorized viewing. CableCARD, POD and Downloadable Conditional Access
(DCAS) are examples of this technology.
G.	Data Over Cable Service Interface Specification (DOCSIS): An international standard that defines
the communications needed to transfer data over the cable infrastructure.
Functionalities
H. Base Functionality: For purposes of this specification, the primary functionality that defines the
criteria that apply to a STB. The Base Functionality is one of the following: Cable, Satellite, IP, or
Terrestrial. (See Section 3 below).
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I. Additional Functionalities: Additional Functionalities consist of one or more of the following:
Additional Tuners, DVR and/or DVD Players and Recorders, High Definition Resolution (Cable
and Satellite STBs only), and Advanced Video Processing.
Additional Functionalities
J. Additional Tuners: An additional tuner provides a second source of media content either from a
physically separate A/V input or from the primary input (used concurrently); they need not be for
the same source media type. Out-Of-Band tuners for DOCSIS and other similar types of
technologies are not considered additional tuners for the purposes of this specification. For
example, a device with additional tuners has the ability to tune into two or more separate streams
of video simultaneously and place those on separate outputs (outputs being either physical
outputs, recording mechanisms, or network based outputs).
K. Advanced Video Processing: MPEG 4 encoding, transcoding and decoding.
L. BluRav: A trademark for a competing version of high definition digital versatile disc that uses a
smaller wavelength of light in order to embed more data on the disc. This is a direct competitor to
HD-DVD and does not use actual DVD discs but discs of similar structure and type.
M. Digital Versatile Disk (DVD): An optical disc storage media format that can be used for data
storage, including movies, with high video and sound quality.
N. Digital Video Recorder (DVR): A device that records video in a digital format to a rewritable disk
drive or other non-volatile storage media local to the unit. The term covers DVR functions
integrated in a STB; it does not include software for personal computers that enables video
capture and playback to and from the computer's data storage nor does it include server based
DVR capabilities.
O. High Definition Resolution: Video with resolutions greater than 480i/p.
P. Out-Of-Band Tuners: Tuners used to gain access to data channels outside of the audio/video
source signal. These tend to be bi-directional in nature and allow the box to send diagnostic
information back to the Service Provider as well as enabling Pay-Per-View content and other rich
media interactive content.
Q. Removable Media Player: A device, such as a DVD/HD or DVD/BluRay player, whose primary
purpose is the decoding of digitized video signals on a DVD.
R. Removable Media Player/Recorder: A device, such as a DVD/HD or DVD/BluRay recorder,
whose primary purpose is the production or recording of digitized video/audio signals on a DVD.
Operational Modes and Power States
S. On/Active: An operational state in which the STB is actively delivering one or more of its principal
functions and some or all of its applicable secondary functions.
T. Standby: A power state in which the device has greater power consumption, capability, and
responsiveness than it does in the Off state, and has less (or similar) power consumption,
capability, and responsiveness than it does it in On state. For purposes of this specification, a
Standby state initiated by a user (Standby-Manual) is distinguished from a Standby state that is
initiated by an Auto Power down event (Standby - Auto Power Down).
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U. Off: A state in which there is negligible or no power consumption.
Miscellaneous
V. Auto Power Down: The capability to automatically switch from the On state to a Standby state
after a period of time without user input, generally based on the amount of time the unit has
remained "idle" from last active use (i.e., user input such as channel change, volume change,
menu access, etc).
W. Cable. Satellite, and Telecom Service Provider: An entity that provides video (and possibly other)
content to these subscribers with whom it has an ongoing financial relationship. A service provider
in the context of ENERGY STAR is one that distributes to end users STBs covered by this
specification under an agreement such as a lease or rental arrangement.
X. CSA: The Canadian Standards Association is a not-for-profit, membership-based association
that works in Canada as well as globally to develop standards that affect areas such as public
safety and health, quality of life, the environment, and trade.
Y. C380-06: CSA's test procedure for the measurement of energy consumption of STBs. As of the
publication of this Draft 2 specification, C380-06 is currently in draft format.
Z. Digital Television Adapter (DTA): Receives terrestrial (over the air), digital signals and converts
them to an analog output suitable for analog TVs. Does not provide digital signal output. For the
purposes of this specification the DTA category does not include converters that work with satellite
or cable digital signals, nor does it cover devices with multi-functionality such as DVD players with
digital to analog conversion capability. Source: ENERGY STAR Digital-to-Analog Converter Box
specification.
DTAs are addressed under the Version 1.0 ENERGY STAR specification for Digital-to-Analog
Converter Boxes, and are not included in this Set-top box specification.
AA. Game Console: A stand-alone device whose primary use is to play video games. The primary
input for game consoles are special hand held controllers rather than a mouse and keyboard used
by conventional computers. Game consoles are also equipped with audio-visual outputs for use
with televisions as the primary display, rather than an external monitor or integrated display.
These devices typically do not use a conventional operating system, but often perform a variety of
multimedia functions such as: DVD/CD playback, digital picture viewing, and digital music
playback. Source: ENERGY STAR Version 4.0 Computers specification.
Game consoles are addressed by the ENERGY STAR Version 4.0 Computers specification, and
are not included in this Set-top Box specification.
BB. TEC: Total Energy Consumption. TEC is an assessment tool used in this specification that
provides flexibility to approach the issue of energy efficiency while retaining a comparable metric
to assess performance. In this specification efficiency criteria are noted in terms of calculated
energy use over a year for a typical user (kWh/yr) rather than power (Watts) for On and Standby
states.
CC.UUT: Unit Under Test (UUT) means the product being tested. Source: CSA C380-06 modified.
2) Qualifying Products: In order to qualify as ENERGY STAR under Tier 1 of this specification,
STBs must meet the definition for these products in Section 1 and meet the technical requirements in
Section 3. The following devices that fall within the definition of an STB, or provide functions similar to
STBs, do not qualify under this Tier 1 specification. EPA envisions that the below excluded products list
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will likely be modified for the Tier 2 phase of this specification:
Tier 1 Excluded Products:
•	Game Consoles (See definition above)
•	DTAs (See definition above)
•	IP set-top boxes sold or provided outside of a dedicated service or service contract.
Note: EPA welcomes feedback on whether IP products distributed under other scenarios should
be considered in Tier 2.
3) Energy Efficiency and Power Management Criteria: Only those products addressed by
the Qualifying Products definition in Section 2 that meet the following criteria may qualify as ENERGY
STAR products.
A)	Calculated TEC Criteria
The criterion for ENERGY STAR qualified STBs is a calculated TEC (in annual kWh). The criterion
(herein called an "allowance") is an allowance for Base Functionality, plus allowances for specific,
additional functionalities present across a duty cycle. This duty cycle is further explained in Section 4.
B)	Base Functionality Allowance
The Base Function shall be established as detailed below.
a.	If the STB meets the definition of Cable STB above, regardless of whether the cable
reception is considered the "principal function" by the manufacturer or service provider,
and/or the STB is capable of receiving cable service after installation of a CableCARD™
or other type of CA system, the Base Functionality is CABLE.
b.	If the STB Base Function is not CABLE, and the STB meets the definition of Satellite STB
above, regardless of whether the satellite reception is considered the "principal function"
by the manufacturer or service provider, the Base Functionality is SATELLITE.
c.	If the STB Base Function is not CABLE or SATELLITE, and the STB meets the definition
of IP STB above, regardless of whether the IP reception is considered the "principal
function" by the manufacturer or service provider, the Base Functionality is IP.
d.	If the STB Base Function is not CABLE, SATELLITE, or IP, and the STB meets the
definition of Terrestrial STB above, regardless of whether the terrestrial reception is
considered the "principal function" by the manufacturer or service provider, the Base
Functionality is TERRESTRIAL.
Table 1: Base Functionality Annual Energy Allowance
Base Functionality
Tier 1 Annual Energy
Allowance (kWh/year)
Tier 2 Annual Energy
Allowance (kWh/year)
Cable
70
42
Satellite
88
44
IP
TBD
TBD
Terrestrial
27
22
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EPA relied heavily on power measurements reported in Roth, Kurt & Kurtis McKenney, TIAX,
"Energy Consumption by Consumer Electronics in U.S Residences," January 2007 to establish
allowances for Tier 1. The lower allowances in Tier 2 were derived by including an auto power
down state of 3 Watts (1 Watt for OTA) that is maintained for seven hours per day. Results were
compared against the data set provided by the NRDC of currently installed STBs. This also
applies to Additional Functionalities as shown in Table 2.
EPA requests comments on the criteria shown here and appropriate levels for IP TV. EPA is
especially interested in comments on the relative levels of Cable and Satellite STBs. EPA also
requests comments on the Additional Functionalities Allowances specified in Section C below.
C) Additional Functionalities Allowance
The Additional Functionalities Allowance, if applicable, shall be determined using values from Table 2.
Table 2: Additional Functions Annual Energy Allowance
Additional
Tier 1 Annual Energy
Tier 2 Annual Energy
Functionalities
Allowance (kWh/year)
Allowance (kWh/year)
Additional Tuners
53
8
Additional Tuners - OTA
14
8
Adv. Video Processing
18
7
DVR
83
32
High Definition*
35
12
Removable Media Player
12
6
Removable Media
23
6
Player/Recorder


* Credit for High Definition applies only to STBs with a Base Functionalities of Cable or
Satellite.
D) Calculating Device Allowances
To calculate the ENERGY STAR allowance for a given device, take the sum of the base functionality
allowance and all applicable additional functionalities allowances. (Note there may not be any
additional functions in devices such as standard cable or satellite STBs) This sum is the calculated
annual kWh limit, or TEC value. This sum equals the maximum amount of energy the box can use in
a given year as calculated following the ENERGY STAR test procedure.
Annual Energy Allowance (kWh/year) = Base Functionality Allowance + Additional Functionalities
Allowance
Examples:
(A)	Under Tier 1, the energy allowance for a high-definition, Cable STB with DVR to qualify for
ENERGY STAR would be 188 kWh/y (70 kWh/y for the base function, 35 kWh/y for the high
definition and 83 kWh/y for the DVR).
(B)	Under Tier 2, the energy allowance for the same product would drop to 86 kWh/y.
E) STBs Using an External Power Supply:
To qualify, the external power supply must be ENERGY STAR qualified or meet the no-load and active
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mode efficiency levels provided in the ENERGY STAR Program Requirements for Single Voltage Ac-Ac
and Ac-Dc External Power Supplies. The ENERGY STAR specification and qualified product list can be
found at: www.enerqvstar.gov/powersupplies.
4) Testing Products for ENERGY STAR:
A) Product Testing Set-up. Procedures, and Documentation:
The test results produced by the ENERGY STAR test procedure (AKA; modified CSA 380-06) shall be
used as the primary basis for determining ENERGY STAR qualification. Manufacturers are required to
perform tests and self-certify those models that meet the ENERGY STAR requirements.
Note: The specific instructions for testing the energy consumption of STBs under ENERGY STAR have
been drawn heavily from C380-06. EPA plans to submit to CSA suggested modifications to C380-06 with
the intent being to work towards harmonization, if possible. Depending on CSA's response to the
suggested changes and the timing of the finalization of the standard, ENERGY STAR may reference
C380-06 directly, or may reference its own test procedure (a modified version of C380).	
B)	TEC Assessment
In this specification, the power consumed in the On and Standby states will be multiplied by the number of
hours a defined typical device spends in On and Standby (either through manual shutdown or shutdown
from auto power down). The product of this will be a single energy value representing the energy usage of
the device over the course of an entire year, when tested to the ENERGY STAR test procedure.
To determine if a STB meets the ENERGY STAR specification criteria (Annual Energy Allowance), the
TEC of the STB shall be calculated as follows. If the TEC assessed for the product is less than the Annual
Energy Allowance calculated from Section 3D, the product meets the criteria and has earned the
ENERGY STAR.
C)	Equation 1: Base Assessment
Applies To All Products
Calculate the Base energy consumption by multiplying the measured power consumption as specified in
this test procedure by the hours per day values in the equations below. If the UUT does not include the
capability for auto power down, then use the first equation. If the product does include auto power down
capability, then use the second equation.
Ptv, Pstandby and PAutoPDare power levels in Watts as measured according to the ENERGY STAR test
procedure.
a) Annual energy (kWh/yr) for a product with no auto power down
= 0-365 x (14 x PTV +10 x PSUndby)
b) Annual energy (kWh/yr) for a product with auto power down capability
kWhto. = 0 365 X ((7 X PTv)+ (10 X	(7 X -P»oPd))
Examples:
(C) The UUT (HD DVR cable STB, Tier 1) does not have auto power down capability, and the
measurement during the test procedure are as follows: PTV = 24.0 Watts and Pstandby= 18.0 Watts. The
annual energy consumption is then:
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kWhBase= 0.365 *(14 *24.0 + 10* 18.0) = 188.0 kWh/yr
(D) The UUT (HD DVR cable STB, Tier 1) does have auto power down capability, and the measurements
during the test procedure are similar to example A: PTV = 26.0 Watts, Pstandby = 20.0 Watts and PAutoPD =
20 Watts. The annual energy consumption is then:
	kWhBase = 0.365 *(7 *24.0 + 10* 18.0 + 7* 18.0) = 173 kWh/yr	
Note: EPA used an analysis of available Nielson data to develop the above user model. The above is
based on the statistical probability that a user is watching TV at any given time (segregated into 1/2 hour
segments) with assumptions regarding which segments viewers were most likely to be watching. This
yielded three distinct viewing periods - morning, afternoon, and evening.
EPA understands that for most products, the power levels for Pstandby and PAut0 pd will be the same.
However, it is important for EPA to provide the flexibility for cases where these levels differ; therefore, two
equations have been provided in this specification.
D) Equation 2: Playback And Record Assessment
The table and equation below illustrate how to calculate from the values measured in the test procedure
the annual energy consumption for the added functionalities such as playback and record. These apply
only to products with a DVR, Removable Media Playback, or Removable Media Playback with Record
capabilities.
Ptv, Ppiayback and PReCord are power levels in Watts as measured according to the ENERGY STAR test
procedure.
2
kWHpiay/Record = ® ^65 X2(^mode ~^7r)X^mode
Table 3: Duty Cycle

DVR
Removable
Removable
Additional

(Hours/Day)
Media
Media
Tuner


Playback
Playback w /
Usage


(Hours/Day)
Record




capability

Mode


(Hours/Day)

Hours On-Playback
2
2
2
1
(H Playback)




Hours On-Record
3
0
1
2
(H Record)




Example:
(E) Consider the Cable STB with DVR product in example (C) above with a PTV of 26.0 Watts. Following
the test procedure, it is found that WPiayback is 30.0 Watts and Wrec0rd is 32.0 Watts
	kWhpiay/Record = 0.365 * ((30.0 - 24.0) * 2 + (32.0 - 24.0) * 3) = 13.1 kWh/yr	
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531
532
533
534
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537
538
539
540
541
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546
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548
549
550
551
552
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555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
Note: EPA arrived at the preceding Duty Cycle figures in Table 3 based on conversations with industry,
recent press reports, Neilson data and best professional judgment
Lastly, add the results from the base tuner, each test based additional functionality (i.e.; DVR,
Removable Media Playback, etc), and then lastly add the allowances for all other additional
functionalities (i.e.; HD, Adv. Video, etc;).
kWhTotal=ikWhFuncS
If the STB includes a DVR, Removable Media Playback, or Removable Media Playback with Record
capability, add the results of Equation 1 and Equation 2. If the STB does not include DVR, Removable
Media Playback, or Removable Media Playback w/ Record capability the TEC is equal to Equation 1.
Example:
In the case of a STB with a DVR, Removable Media Playback, Removable Media Playback with
Record capability, one would then take the example from letter C, add the result from letter E and get
188.0 + 13.1 for a total of 201.0 kWh for the year for this particular box. This product would not meet
the ENERGY STAR requirements. If, however, the product had auto power down capability, one
would take 173.0 from letter C and add 13.1 for a total of 186.1 kWh for the year and the product
would qualify.	
E)	Electronic Program Guide and System Update Requirements
ENERGY STAR qualified STBs may exit Standby mode in order to scan for program and system
information or private data (PSIP). In order to qualify for ENERGY STAR, STBs may exit the Standby
mode for no longer than one hour in an eight hour period that the device would otherwise remain in
Standby mode.
F)	Auto Power Down and Other Standby Event Requirements
A STB for which the Partner claims the presence of Auto Power Down functionality or other automatically
initiated standby capability for purposes of using equation 1 b to calculate the total energy consumption in
Section 4, the following requirements must be met:
1.	The STB must be shipped from the manufacturer with the auto power down setting engaging at
four hours or less of inactivity. It is acceptable for the current program to complete before
switching to the Standby state. The energy-related settings shipped as the default by the
manufacturer shall not be capable of being altered during the initial user set-up process and shall
persist unless the user chooses at a later date to manually: a) disable the "automatic switching to
Standby state" capability, or b) adjust the default time period from four hours or less to some other
value.
2.	The STB may exit an automatically-initiated Standby mode in order to scan for program and
system information, scheduling information, or any other maintenance activity. If this occurs, the
STB may exit the Standby mode for no longer than two hours in a twenty-four (24) hour period
that the device would otherwise remain in Standby mode.
G)	Submittal of Qualified Product Data to EPA:
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617
Partners are required to report data on those models that meet the ENERGY STAR guidelines to EPA.
The test results must be reported to EPA using the Set-top Box Version 2.0 Qualifying Product Information
(QPI) Form or Online Product Submittal Tool (OPS).
5) User Interface: Although not mandatory, manufacturers are strongly recommended to design
products in accordance with the Power Control User Interface Standard — IEEE 1621 (formally known as
"Standard for User Interface Elements in Power Control of Electronic Devices Employed in
Office/Consumer Environments"). Compliance with IEEE 1621 will make power controls more
consistent and intuitive across all electronic devices. For more information on the standard, see
http://eetd.LBL.gov/Controls.
6) Effective Date: The date that manufacturers may begin to qualify products as ENERGY STAR
under this Version 2.0 specification will be defined as the effective date of the agreement. The ENERGY
STAR specification for STBs (Version 2.0) Tier 1 is effective September 1, 2008. Tier 2 will become
effective on January 1, 2010. Any previously executed agreement on the subject of ENERGY STAR
qualified set-top boxes terminated effective February 2, 2005.
1.	Qualifying and Marking products under the Tier 1 Version 2.0 specification: All products, including
models originally qualified under Version 1.0, with a date of manufacture on or after September 1,
2008, must meet the new (Version 2.0) requirements in order to qualify for ENERGY STAR. 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.
2.	Qualifying and Marking products under the Tier 2 Version 2.0 specification: All products, including
models originally qualified under Tier 1 Version 2.0, with a date of manufacture on or after January
1, 2010, must meet the Tier 2 requirements in order to qualify for ENERGY STAR.
3.	Elimination of Grandfathering: EPA will not allow grandfathering under this Version 2.0 ENERGY
STAR specification. ENERGY STAR qualification under previous Versions is not
automatically granted for the life of the product model. Therefore, any product sold,
marketed, or identified by the manufacturing partner as ENERGY STAR must meet the current
specification in effect at the time of manufacture of the product.
7) Future Specification Revisions: EPA reserves 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. In keeping with current policy, revisions to the specification will be discussed with
stakeholders. In the event of a specification revision, please note that ENERGY STAR qualification is not
automatically granted for the life of a product model. To qualify as ENERGY STAR, a product model must
meet the ENERGY STAR specification in effect on the model's date of manufacture.
ENERGY STAR Program Requirements for Set-top Boxes: Draft 2 Version 2.0
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