ETSI TR 102 877 V1.1.1 (2011-05)

Technical Report
Access, Terminals, Transmission and Multiplexing (ATTM);
Energy Efficiency of Energy Related Products (ErPs)
with regards to their Ecodesign Requirements;
Network Apparatus and Customer Premises Equipment
relating to Cable Network Operator's Services

2 ETSI TR 102 877 V1.1.1 (2011-05)

Reference
DTR/ATTM-003005
Keywords
cable, IPCable
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3 ETSI TR 102 877 V1.1.1 (2011-05)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Abbreviations . 6
4 Applicable references . 7
4.1 Existing ecodesign guidelines or requirements . 7
4.1.1 EU Codes of Conduct on Energy Consumption . 7
4.1.2 EU Ecodesign Requirements . 7
4.1.3 ETSI . 7
4.1.4 Energy Star . 7
4.2 Ecodesign references on Broadband Communication Equipment . 8
4.2.1 CoC on Energy Consumption of Broadband Communication Equipment Version 4 . 8
4.2.1.1 Customer Premises Equipment . 8
4.2.1.2 CMTS Equipment . 10
4.2.2 Ecodesign requirements for standby and off mode electric power consumption of electrical and
electronic household and office equipment . 12
4.3 Ecodesign reference on networked standby . 13
4.4 Ecodesign references on Power Supplies . 13
4.4.1 CoC on Efficiency of External Power Supplies . 13
4.4.2 Ecodesign requirements for no-load condition electric power consumption and average active
efficiency of external power supplies . 14
4.4.3 ETSI ATTM External Power Supply Standards . 14
4.5 Ecodesign references on Settop Boxes . 14
4.6 Ecodesign references on energy consumption measurement. 14
4.6.1 ETSI Draft document - Environmental Engineering (EE): Measurement methods and limits for
energy consumption of End-user Broadband Equipment (CPE) . 14
5 Operation Modes . 15
5.1 Off Mode . 15
5.2 Standby Mode . 15
5.3 Active Mode . 15
5.3.1 On mode . 15
5.3.2 Low power mode . 16
5.4 Networked standby . 16
Annex A: Bibliography . 17
History . 18

ETSI
4 ETSI TR 102 877 V1.1.1 (2011-05)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Report (TR) has been produced by ETSI Technical Committee Access, Terminals, Transmission and
Multiplexing (ATTM).
ETSI
5 ETSI TR 102 877 V1.1.1 (2011-05)
1 Scope
The present document summarizes the existing documents and standards on energy efficiency that impact cable devices.
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] European Code of Conduct on Energy Consumption of Broadband Equipment, Version 4,
th
10 February 2011.
[i.2] European Code of Conduct on Energy Consumption of External Power Supplies, Version 4,
April 2009.
[i.3] Commission Regulation (EC) No 1275/2008 of 17 December 2008 implementing Directive
2005/32/EC of the European Parliament and of the Council with regard to ecodesign requirements
for standby and off mode electric power consumption of electrical and electronic household and
office equipment.
[i.4] Commission Regulation (EC) No 278/2009 of 6 April 2009 implementing Directive 2005/32/EC
of the European Parliament and of the Council with regard to ecodesign requirements for no-load
condition electric power consumption and average active efficiency of external power supplies.
[i.5] Commission Regulation (EC) No 107/2009 of 4 February 2009 implementing Directive
2005/32/EC of the European Parliament and of the Council with regard to ecodesign requirements
for simple set-top boxes.
[i.6] EuP Lot 26: Networked standby losses.
NOTE: Available at http://www.ecostandby.org/.
[i.7] ENERGY STAR Small Network Equipment.
NOTE: Available at http://www.energystar.gov/index.cfm?c=new_specs.small_network_equip.
[i.8] ETSI ES 202 874-1: "Access, Terminals, Transmission and Multiplexing (ATTM); External
Common Power Supply for Customer Premises Network and Access Equipment;
Part 1: Functional requirements".
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6 ETSI TR 102 877 V1.1.1 (2011-05)
[i.9] IEEE 802.11g: "IEEE Standard for Local and Metropolitan Area Networks - Specific
Requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications: Further Higher Data Rate Extension in the 2.4 GHz Band".
[i.10] IEEE 802.11n: "IEEE Standard for Local and Metropolitan Area Networks - Telecommunications
and Information Ixchange between Systems -- Local and Metropolitan Area Networks -- Specific
Requirements Part 11: Wireless LAN Medium Access Control (MAC)and Physical Layer (PHY)
Specifications Amendment 5: Enhancements for Higher Throughput".
[i.11] Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on
the approximation of the laws of the Member States relating to electromagnetic compatibility and
repealing Directive 89/336/EEC.
[i.12] DTS/EE-00018: "Environmental Engineering (EE); EE Eco Environmental Product Standards
Metrics and target value for Energy consumption of End-user Broadband equipment (CPE)".
[i.13] TR-069: "CPE WAN Management Protocol v1.1".
[i.14] ETSI TS 102 533: "Environmental Engineering (EE); Measurement Methods and limits for Energy
Consumption in Broadband Telecommunication Networks Equipment".
[i.15] EuP Lot 18: Complex Settop Boxes.
NOTE: Available at http://www.ecocomplexstb.org/.
3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating Current
ARP Address Resolution Protocol
CMTS Cable Modem Termination System
CoC Code of Conduct
CoC Code of Conduct
CPE Customer Premises Equipment
CPS Common Power Supply
DC Direct Current
DECT Digital Enhanced Cordless Telecommunication
DOCSIS Data Over Cable Service Interface Specifications
DS Downstream
EIRP Equivalent Isotropically Radiated Power
EQAM Edge Quadrature Amplitude Modulator
EU European Union
FXO Foreign eXchange Office
FXS Foreign eXchange Station
GAP Generic Access Profile
GPON Gigabit Passive Optical Network
HPNA Home Phoneline Networking Alliance
I-CMTS Integrated CMTS
ISDN Integrated Services Digital Network
LAN Local Area Network
MAC Media Access Control
M-CMTS Modular CMTS
MIMO Multiple Input Multiple Output
MoCA Multimedia over Coax Alliance
POF Plastic Optical Fibre
QAM Quadrature Amplitude Modulation
QVGA Quarter Video Graphics Array
RF Radio Frequency
TFT Thin-Film Transistor
USB Universal Serial Bus
VG Video Graphics
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7 ETSI TR 102 877 V1.1.1 (2011-05)
VoIP Voice over IP
WAN Wide Area Network
4 Applicable references
4.1 Existing ecodesign guidelines or requirements
4.1.1 EU Codes of Conduct on Energy Consumption
The "Code of Conduct" documents are not regulations from the EU. The Code of Conduct documents provide
guidelines that a company can voluntarily support. There is no certification involved, but audits to ensure compliance
may occur at any time. There are a number of documents from the CoC which are relevant to the cable modem or
gateway:
• Code of Conduct on Energy Consumption of Broadband Communication Equipment [i.1].
• Code of Conduct on Efficiency of External Power Supplies [i.2].
4.1.2 EU Ecodesign Requirements
The EU Ecodesign Requirements are regulations from the European commission and thus, are to be followed when
applicable. There are a number of documents from the European Commission, but only the following documents are
relevant to cable devices:
• Ecodesign requirements for standby and off mode electric power consumption of electrical and electronic
household and office equipment [i.3].
• Ecodesign requirements for no-load condition electric power consumption and average active efficiency of
external power supplies [i.4].
• Ecodesign requirements for simple set-top boxes [i.5].
• Ecodesign preparatory studies Lot 26: Networked Standby Losses [i.6].
• Ecodesign preparatory studies Lot 18: Complex Settop Boxes [i.15].
4.1.3 ETSI
There are several standards and work items currently in progress within ETSI.
• DTS/EE-00018 [i.12] - Draft document entitled Environmental Engineering (EE): Measurement methods and
limits for energy consumption of End-user Broadband Equipment (CPE).
• ATTM External Power Supply Standard - ES 202 874-1 [i.8].
4.1.4 Energy Star
The United States Environmental Protection Agency uses the Energy Star label as a way to communicate that a product
meets the strict energy efficiency guidelines. Energy star standards exist for many home electronic devices as well as
for complex set-top boxes. The current Energy Star items that apply to cable devices are listed below:
• Program Requirements for Single Voltage External Ac-Dc and Ac-Ac Power Supplies [i.7].
• In-progress topic of requirements for small network equipment [i.7].
ETSI
8 ETSI TR 102 877 V1.1.1 (2011-05)
4.2 Ecodesign references on Broadband Communication
Equipment
4.2.1 CoC on Energy Consumption of Broadband Communication
Equipment Version 4
The CoC for broadband communication equipment applies to cable devices.
4.2.1.1 Customer Premises Equipment
The CoC for broadband communication equipment defines power consumption targets measured at the AC mains input.
A home gateway is "a generic term which encompasses all kinds of access interfaces", including a DOCSIS cable
modem.
The Broadband Code of Conduct defines the low-power state of a DOCSIS gateway as the DOCSIS WAN port in an
idle state, the LAN ports disconnected, and one FXS port with phone connected. The central functions of the DOCSIS
gateway are "not processing user traffic" and the physical configurations of the WAN interface (the DOCSIS modem) is
defined as the same as in the on-state. However, there is a note in the low-power definition that "the low power state
configuration can be different than in On-state if this does not require a manual reconfiguration by the end user (e.g. in
case of DOCSIS 3.0, the CPE could transition to a 1x1configuration or in case of ADSL2+ to the L2 mode)". This
provides the cable industry the option of defining a means of configuring the DOCSIS 3.0 modem into a 1x1
configuration when in a low-power mode in the future.
The Broadband Code of Conduct defines the on-state of a DOCSIS gateway per table 1 (which is copied directly from
the Broadband Code of Conduct). The DOCSIS targets in table 2 have been defined for the "low power" and "on-state".
(Table 2 is also copied directly from the Broadband Code of Conduct.) The power allowances for LAN interfaces and
additional functionality are shown in table 3 in the "low power" and the "on-state".
The description for a DOCSIS WAN interface includes a minimum subset of parameters -- the downstream modulation,
upstream modulation, and upstream symbol rate. The parameters which are not defined are expected to occur within the
range defined by the DOCSIS specifications. Specifically, the upstream transmit power levels are to be within the
DOCSIS required levels, between 8 dBmV and 58 dBmV for DOCSIS 2.0 and between 17 dBmV and 61 dBmV for
DOCSIS 3.0. The descriptions of the "on-state" include the traffic rate (of 500 byte UDP packets) to be forwarded
through the DOCSIS HFC (WAN interface).
The Broadband Code of Conduct provides a power allowance to DOCSIS 3.0 modems for each additional four
downstream channels that the modem is capable of supporting -- the "DOCSIS 3.0 additional power allowance for each
additional 4 downstream channels". This allowance is based on the number of downstream channels that the modem is
capable of supporting, not on the number of downstream channels with which the modem is configured to operate. For
example, a modem that is registered in a configuration with eight downstream channels and four upstream channels, but
is capable of supporting sixteen downstream channels, applies the four-downstream channel allowance twice (because
of capability of eight additional channels) for both the low power mode and the on-state. Note that the Broadband Code
of Conduct does not provide an allowance for additional upstream channels that the modem is capable of supporting
since the DOCSIS 3.0 specifications do not currently cover operation with more than four upstream channels.
ETSI
9 ETSI TR 102 877 V1.1.1 (2011-05)
Table 1: Definition of the on-state for home gateways
Port/Component On-state
Central functions (processor and Processing the user traffic present on the WAN and LAN interfaces.
memory: routing, firewall, OAM
(e.g. TR-069 [i.13]), user
interface)
WAN port Single WAN: Active (link established and passing user traffic).
In case of dual WAN interface, for backup or alternative purposes, only one of
the two ports will be in the above described state, while the second will be
disconnected, but able to be manually or automatically activated in case of
need.
In case of dual WAN interface for simultaneous operation, both ports will be in
the above described state.
DOCSIS 2.0 Active with a downstream channel with a modulation type of 256 QAM and an
upstream channel with a modulation type of 64 QAM and a symbol rate of
5,12 Ms/s and passing user traffic: 10 Mbit/s downstream, 2 Mbit/s upstream.
DOCSIS 3.0 Active with an NxM configuration with N downstream channels with a
modulation type of 256 QAM and M upstream channels with a modulation type
of 64 QAM and a symbol rate of 5,12 Ms/s. Modem is passing user traffic:
20 Mbit/s downstream, 5 Mb
...