ETSI ES 202 336-12 V1.1.1 (2015-06)

ETSI STANDARD
Environmental Engineering (EE);
Monitoring and control interface for infrastructure equipment
(power, cooling and building environment systems used in
telecommunication networks);
Part 12: ICT equipment power, energy and environmental
parameters monitoring information model

2 ETSI ES 202 336-12 V1.1.1 (2015-06)

Reference
DES/EE-02037-12
Keywords
control, energy efficiency, interface,
management, network monitoring, power, system
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3 ETSI ES 202 336-12 V1.1.1 (2015-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 10
3.3 Abbreviations . 10
4 ICT power, energy and environmental parameters monitoring system . 11
4.1 General description. 11
4.2 Complementarity to existing site power and air-conditioning measurements . 12
4.3 Different site cases . 13
4.3.1 Simple site case . 13
4.3.2 Complex site case . 14
4.4 Measurement and monitoring description . 15
4.4.0 General description . 15
4.4.1 Internal measurements type 1 (Built-in) in ICT equipment) . 15
4.4.2 External measurements type 2 (external sensors) for ICT equipment . 16
4.4.3 Common requirements for external (type 2) and internal (type 1) measurement . 17
4.4.3.0 Principle of power consumption measurement . 17
4.4.3.1 Power consumption measurement . 17
4.4.3.2 Energy metering . 17
4.4.3.3 Voltage, current and hygrometry measurement . 17
4.4.3.4 Accuracies levels of current, voltage, power consumption measurement and energy meter . 17
4.4.3.5 Local acquisition record . 17
4.4.3.6 Accuracy verification . 18
4.4.3.7 Data transmission period . 18
4.4.3.8 Local record saving . 18
4.5 Power/Energy metering data analysis services . 18
Annex A (normative): Summary of mandatory monitoring / supervision information and
f unctions . 20
A.0 General descritpion of mandatory monitoring / supervision information and functions tables . 20
A.1 Table for ICT equipment power, energy and environmental parameters measurements . 20
Annex B (informative): Summary of non-mandatory monitoring / supervision information
and functions . 23
B.0 General descritpion of non mandatory monitoring / supervision information and functions tables . 23
B.1 Table for ICT equipment power, energy and environmental parameters . 23
Annex C (normative): Mandatory XML structure and elements . 25
C.1 Structure of an XML document for ICT Power/Energy/Environment metering . 25
Annex D (informative): 3GPP and E-UTRAN Management reference model and unified
interface Itf-N . 27
Annex E (informative): Fixed network Management reference model and unified interface. 29
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4 ETSI ES 202 336-12 V1.1.1 (2015-06)
Annex F (informative): State of the art of power, energy measurement and monitoring
systems . 30
F.0 Introduction . 30
F.1 Acquisition and remote metering principles. 30
F.2 General description of measurement . 32
F.2.1 General principle . 32
F.2.2 Measurement sensors . 32
Annex G (informative): Bibliography . 36
History . 37

ETSI
5 ETSI ES 202 336-12 V1.1.1 (2015-06)
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://ipr.etsi.org).
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 ETSI Standard (ES) has been produced by ETSI Technical Committee Environmental Engineering (EE).
The present document is part 12 of a multi-part deliverable covering monitoring and control interface for infrastructure
equipment (power, cooling and building environment systems used in telecommunication networks), as identified
below:
Part 1: "Generic Interface";
Part 2: "DC power system control and monitoring information model";
Part 3: "AC UPS power system control and monitoring information model";
Part 4: "AC distribution power system control and monitoring information model";
Part 5: "AC diesel back-up generator system control and monitoring information model";
Part 6: "Air Conditioning System control and monitoring information model";
Part 7: "Other utilities system control and monitoring information model";
Part 8: "Remote Power Feeding System control and monitoring information model";
Part 9: "Alternative Power Systems";
Part 10: "AC inverter power system control and monitoring information model";
Part 11: "Battery system with integrated control and monitoring information model";
Part 12: "ICT equipment power, energy and environmental parameters monitoring information model".
The goal of the present document is to define the measurement of electrical power and energy consumption of ICT
equipment as well as environmental parameters (temperature, hygrometry) in order to improve energy monitoring and
to correlate the power consumption to equipment operation activity (telecom traffic, computation, etc.). It is also to
define the transfer protocol of this measurement data from site to network operation centre. Knowing power
consumption gives the possibilities to reduce energy consumption of equipment and/or network. Granularity,
measurement period and accuracies are defined to meet these targets. They may depend on equipment types and
location in the different segments of a network (customer termination, access, core, data-center, etc.). In addition, these
measurements can be used to improve engineering and operation including more accurate dimensioning of power
systems, network evolution modelling and prevision, audit on field, etc.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
6 ETSI ES 202 336-12 V1.1.1 (2015-06)
1 Scope
The present document defines measurement and monitoring of power, energy and environmental parameters for ICT
equipment in telecommunications or datacenter or customer premises.
It defines the power, energy and environmental parameters monitoring interface of ICT equipment based on generic
ETSI ES 202 336-1 [1] interface so that correlations can be made with ICT equipment parameters (traffic, flowrate,
number of connected lines, radio setting, QoS KPI, etc.) in the network management system.
Correlations of monitored data (power, energy consumption and environmental values) with the ICT equipment
parameters and settings are not in the scope of the present document.
The monitoring interface covers:
• Internal power consumption measurement on the ICT equipment powered in DC and AC.
• Power consumption measurement external to the ICT equipment (if not implemented internally, e.g. legacy
equipment).
• Energy metering based on power consumption measurement.
• Environmental parameters of the ICT equipment (e.g. temperature at air inlet of equipment).
The present document defines:
• The minimum set of exchanged information required at the interface, described in "natural language" in text
tables including parameters such as precision, range, etc. and settings such as data acquisition periodicity, etc.
• The XML files with tags and variables corresponding to the data in the tables in complement to general rules
defined in ETSI ES 202 336-1 [1] and ETSI ES 202 336-2 [4].
2 References
2.1 Normative 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.
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 202 336-1: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 1: Generic Interface".
[2] ETSI ES 202 336 (all parts): "Environmental Engineering (EE); Monitoring and Control Interface
for Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks)".
[3] ETSI ETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct
current (dc) sources".
[4] ETSI ES 202 336-2: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (Power, Cooling and environment systems used in telecommunication
networks); Part 2: DC power system control and monitoring information model".
ETSI
7 ETSI ES 202 336-12 V1.1.1 (2015-06)
[5] ETSI ES 202 336-3: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 3: AC UPS power system control and monitoring information
model".
[6] ETSI ES 202 336-10: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 10: AC inverter power system control and monitoring
information model".
[7] ETSI EN 300 132-2: "Environmental Engineering (EE); Power supply interface at the input to
telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)".
[8] ETSI ES 202 336-4: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 4: AC distribution power system control and monitoring
information model".
[9] ETSI ES 202 336-6: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 6: Air Conditioning System control and monitoring
information model".
[10] ETSI EN 300 019-2 (all subparts): "Environmental Engineering (EE); Environmental conditions
and environmental tests for telecommunications equipment; Part 2: Specification of environmental
tests".
[11] ETSI EN 300 019-1 (all subparts): "Environmental Engineering (EE); Environmental conditions
and environmental tests for telecommunications equipment; Part 1: Classification of
environmental conditions".
2.2 Informative 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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
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] IEEE 802.1 to 802.11: "IEEE Standard for Local & Metropolican Area Network".
[i.2] ISO/IEC 8879: "Information processing -- Text and office systems -- Standard Generalized
Markup Language (SGML)".
[i.3] ETSI ES 203 215: "Environmental Engineering (EE); Measurement Methods and Limits for Power
Consumption in Broadband Telecommunication Networks Equipment".
[i.4] ETSI ES 202 706: "Environmental Engineering (EE); Measurement method for power
consumption and energy efficiency of wireless access network equipment".
NOTE: ETSI ES 202 706 is revision of the ETSI TS 102 706.
[i.5] ETSI ES 201 554: "Environmental Engineering (EE); Measurement method for Energy efficiency
of Mobile Core network and Radio Access Control equipment".
[i.6] ETSI ES 203 184: "Environmental Engineering (EE); Measurement Methods for Power
Consumption in Transport Telecommunication Networks Equipment".
[i.7] ETSI ES 203 136: "Environmental Engineering (EE); Measurement methods for energy efficiency
of router and switch equipment".
ETSI
8 ETSI ES 202 336-12 V1.1.1 (2015-06)
[i.8] ETSI EN 301 575: "Environmental Engineering (EE); Measurement method for energy
consumption of Customer Premises Equipment (CPE)".
[i.9] ETSI ES 203 237: "Environmental Engineering (EE); Green Abstraction Layer (GAL); Power
management capabilities of the future energy telecommunication fixed network nodes".
[i.10] ETSI ES 203 228: "Environmental Engineering (EE); Assessment of Mobile Network Energy
Efficiency".
[i.11] Recommendation ITU-T M.3000 serie: "TMN and network maintenance: international
transmission systems, telephone circuits, telegraphy, facsimile and leased circuits
Telecommunications management network".
[i.12] Recommendation ITU-T M.3010 (Series M): "TMN and network maintenance: international
transmission systems, telephone circuits, telegraphy, facsimile and leased circuits
Telecommunications management network - Principles for a telecommunications management
network".
[i.13] ETSI TS 132 101 (V12.0.0): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Principles
and high level requirements (3GPP TS 32.101 version 12.0.0 Release 12)".
[i.14] ETSI EN 302 099: "Environmental Engineering (EE); Powering of equipment in access network".
[i.15] ETSI EN 300 132-3-1: "Environmental Engineering (EE); Power supply interface at the input to
telecommunications and datacom (ICT) equipment; Part 3: Operated by rectified current source,
alternating current source or direct current source up to 400 V; Sub-part 1: Direct current source
up to 400 V".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
NOTE: Terms referring to energy interface, equipment and distribution are described in power distribution
standards ETSI ETS 300 132-1 [3], ETSI EN 300 132-3-1 [i.15], ETSI EN 300 132-2 [7] for ac and dc
interface A and A3 and ETSI EN 302 099 [i.14] for access network equipment powering.
AC distribution power system: device or system that distribute AC voltage or convert DC voltage to AC voltage and
provides electrical power without interruption in the event that commercial power drops to an unacceptable voltage
level
alarm: any information signalling abnormal state, i.e. different to specified normal state of hardware, software,
environment condition (temperature, humidity, etc.)
NOTE: The alarm signal should be understood by itself by an operator and should always have at least one
severity qualification or codification (colour, level, etc.). alarm message structure are defined in ETSI
ES 202 336-1 [1].
EXAMPLE: Rectifier failure, battery low voltage, etc.
board: electronic part of an equipment (e.g. a blade server)
cabinet: closed enclosure including several shelves or racks
Control Unit (CU): integrated unit in an equipment to monitor and control this equipment through sensors and
actuators
ETSI
9 ETSI ES 202 336-12 V1.1.1 (2015-06)
Data Gathering Unit (DGU): functional unit used for several functions:
• collect serial, digital, and analog data from several equipment;
• option to send (output) serial or digital commands;
• forward/receive information to/from the Local/Remote Management Application via agreed protocols;
• mediation between interfaces and protocols.
NOTE: This function may be integrated as part of specific equipment.
DC back-up system: device or system that provides electrical power without interruption in the event that commercial
power drops to an unacceptable voltage level
DC distribution power system: device or system to distribute DC voltage
Ethernet: LAN protocol
NOTE: Equivalent to IEEE 802.1 to 802.11 [i.1].
event: any information signalling a change of state which is not an alarm: e.g. battery test, change of state of battery
charge
NOTE: The event signal should be understood by itself by an operator It should be transmitted in a formatted
structure with text message and other fields like for alarm. An event can be coded as an alarm with
severity "0".
eXtensible Mark-up Language (XML): application profile or restricted form of SGML
NOTE: By construction, XML documents are conforming SGML the Standard Generalized Markup Language
(ISO/IEC 8879 [i.2]) documents. XML is designed to describe data and focus on what data is. XML
should be discerned from the well known Hypertext Transfer Mark-up Language (HTML) which was
designed to display data and to focus on how data looks.
infrastructure equipment: power, cooling and building environment systems used in telecommunications centres and
Access Networks locations
EXAMPLE: Cabinets, shelters, underground locations, etc.
module: closed unit including electronic boards forming part of a larger system (e.g. sub-unit of a base station in a
cabinet or separated)
rack: sub part of the cabinet including ICT equipment rest
shelf: level in a cabinet
Warning: low severity alarm
World Wide Web Consortium (W3C): consortium founded in October 1994 to develop common interoperable
protocols and promote World Wide Web
NOTE: See http://www.w3c.org.
XCU: CU enabled to communicate using XML interface as defined in the present document
xDSL: global designation of the digital subscriber line (DSL) technologies
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10 ETSI ES 202 336-12 V1.1.1 (2015-06)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
E electric energy
I electric current
P electric power
T temperature
U electric voltage or difference of potential
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
µC Microcontroler
AC Alternating Current
ADC Analog Digital Conversion or Converter
ADSL Asynchronous Digital Subscriber Line
BB Broad-Band
BBU Base-Band Unit
BS Base Station
CU Control Unit of an equipment
DC Direct Current
DGU Data Gathering Unit
DSLAM Digital Subscriber Line Access Multiplexer
EEPROM Electricaly Erasable Programmable Read Only Memory
EMAN Energy Manager (abbreviation of IETF specification)
E-UTRAN Extended UTRAN
FAN Fixed Access Network
HTML Hypertext Transfer Make-up Language
HTTP HyperText Transfer Protocol
ICT Information and Communication Technology
IETF Internet Engineering Task Force
IP Internet Protocol
KPI Key Performance Indicator
LAN Local Array Network
MSAN Multiservice Access Network
NE Network Element
NMS Network Management System
OA Operational Amplifier
OLT Opitcal Line Termination
ONT Optical Network Termination
ONU Optical Network Unit
OSS Operations Support System
PEE Power, Energy, Environmental parameters
PF Power Factor
PSU Power Supply Unit
RMA Remote Management Application
RMS Root Mean Square
RRU Remote Radio Unit
SGML Standard Generalized Markup Language
TCP Transmission Control Protocol for IP
TMN Telecom Management Network
NOTE: As defined in Recommendation ITU-T M.3000 series [i.11].
UPS Un-interruptible Power Supply
UTRAN Extended Terrestrial Radio Access Network
W3C World Wide Web Consortium
XCU XML enabled CU
XML eXtensible Mark-up Language (see W3C)
ETSI
11 ETSI ES 202 336-12 V1.1.1 (2015-06)
4 ICT power, energy and environmental parameters
monitoring system
4.1 General description
The basic principles of power, energy and environment parameters measurements of ICT equipment and their transfer
to the network management systems (NMS) are shown in figure 1.
The following measuring device are used: wattmeter or energy meter (W, Wh) and/or Voltage (V) and/or current meter
(A). Voltage or current shall be recorded for monitoring when used to assess the power and energy consumption.
Temperature shall also be measured and recorded.
NOTE 1: The energy consumption can be calculated from power measurement over a period of time.
NOTE 2: Humidity should be measured at the level of room or air conditioning, not at equipment level.
In the preferred implementation, power and energy measurements shall be taken down-stream of power supply interface
A or A3 as defined in ETSI ETS 300 132-1 [3], ETSI EN 300 132-2 [7] and ETSI EN 300 132-3-1 [i.15] and inside the
ICT equipment (type 1 measurement).
Otherwise e.g. on legacy equipment, power and energy measurements can be taken upstream of interface A outside the
ICT equipment (type 2 measurement).
The electrical measurement sensors shall be located the closest as possible of the power electrical interface (A or A3)
and the thermal environment sensors shall be placed in the air flow of the air inlet of the equipment or shelter.
For interoperability, measurement values are transmitted directly using ETSI ES 202 336-1 [1] and the present
document's protocol, or indirectly through the TMN protocol over the NMS.
NOTE 3: The Network Management System (NMS) is the functional entity from which the network operator
monitors and controls the system at centralized level and manage operational and maintenance activities,
it is using a TMN protocol not defined in the present document. The operation and Maintenance functions
are based on the principles of the Telecommunication Management Network (TMN) of Recommendation
ITU-T M.3010 [i.12] introduced by Recommendation ITU-T M.3000 series [i.11].
NOTE 4: The measurements done using this standard can be used as inputs for enabling:
- assessment of Power Consumption in Broadband Telecommunication Networks Equipment [i.3]
Transport Telecommunication Networks Equipment [i.6], Customer Premises Equipment (CPE) [i.8];
- assessment of Energy efficiency of wireless access network equipement [i.4], Core network
equipment [i.5], router and switch equipment [i.7], Mobile Network [i.10];
- Power management capabilities of the future energy telecommunication fixed network nodes with
Green Abstraction Layer (GAL) [i.9].
ETSI
12 ETSI ES 202 336-12 V1.1.1 (2015-06)
Builing controls XCU/DGU
Power/cooling/
building infrastructure
Cooling systems XCU/DGU
Control-monitoring
Power plants XCU or DGU
+ Energy meters
PEE
Interoperable
Remote Management
XCU or DGU
and unified protocol
Server (RMS)
ES 202 336-12
(TCP/IP http(s) REST XML
over Ethernet, GPRS, etc.)
ES 202 336-1 to 12
Control
Data
Type 2: External
(not specified
export
sensors
in ES 202 336-12)
Monitoring
A or A3
power interface
Air
Network
inle t TMN protocol
Type 1 :
Management
Telecom/ICT
Embedded System (NMS)
equipment
sensors
Telecom site
NOTE 1: On figure 1, some ICT sites may not have all of the parts (building, power, cooling) and therefore
monitoring interface would not be required.
NOTE 2: A ICT equipment of a vendor X is in general connected to the NMS of the vendor X, but the power/air
conditioning /building infrastructure RMS can be from a vendor Y.

Figure 1: Principle of the monitoring of ICT equipment power, energy and environment parameters
4.2 Complementarity to existing site power and air-conditioning
measurements
The power/energy and environmental parameters measurement on ICT equipment as standardized in the present
document are complementary to the measurements already achieved at the site and room level on the power and air
conditioning systems in compliance with the ETSI ES 202 336 serie [2] introduced in main standard ETSI
ES 202 336-1 [1], in particular in standard ETSI ES 202 336-4 [8], ETSI ES 202 336-10 [6], ETSI ES 202 336-3 [5],
ETSI ES 202 336-2 [4] and ETSI ES 202 336-6 [9].
Considering these monitoring standards, there can be already many existing measurements in existing sites on power,
cooling and distributions systems:
• AC and DC current or power sensors;
• AC and DC energy meters;
• Voltage, current, phases/frequency measurement sensors;
• Power factor measurement device;
• Sensors bus;
• Monitoring and control unit (XCU) compliant with ETSI ES 202 336-1 [1].
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13 ETSI ES 202 336-12 V1.1.1 (2015-06)
NOTE 1: For very critical site, there could be additional power quality monitoring measurements (e.g. harmonic
currents amplitude, power factor, distorsion, dips, etc.).
NOTE 2: The measurements transmitted through ETSI ES 202 336 series [2] can be used if they respects the
requirement of the present document.
4.3 Different site cases
4.3.1 Simple site case
Two types (see figure 2) of PEE monitoring can exist in a simple ICT site, and how compatibility is ensured between
these types with the remote monitoring:
• Type 1: built-in measurements inside ICT equipment down-stream from interface A (or A3).
• Type 2: external measurement at input junction box measurements up-stream from interface A (or A3).
Internal power consumption and environment sensors and external measurement connected to an energy
metering/environment XCU shall be used as defined in clause 4.4. Humidity measurements are optional.
Data export from NMS to the power/cooling remote management server shall use the ETSI ES 202 336-1 [1] and the
present standard. The NMS can also be used for dialog with other type of server as explained in clause 4.5.
PEE
Power Supply System
Control-monitoring
Power/cooling/
XCU or DGU
(e.g. for -48 VDC, 230VAC,
building infrastructure
ES 202 336-12
400VDC, …) XCU or DGU
Interoperable
and unified protocol
+ Energy meters
(TCP/IP http(s) REST
XML over Ethernet,
Remote Management
GPRS, etc.)
Server (RMS)
ES 202 336-1 to 12
Control
Data
(not specified
Type 2: External
export
in ES 202 336-12)
Monitoring
sensors
A or A3
power interface
Air
Network
inle t TMN protocol
Management
Type 1 : Telecom/ICT
System (NMS)
Embedded sensors
Equipment
Telecom Site
Figure 2: Example of possible implementation in a simple Telecom site
(e.g. a radio mobile site with ICT/Telecom connected to an OSS/NMS)
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14 ETSI ES 202 336-12 V1.1.1 (2015-06)
4.3.2 Complex site case
The figure 3 gives example of 3 cases of monitoring of PEE that can exists in a complex ICT site, and how
compatibility is ensured between these cases with the remote monitoring:
• Type 1: built-in measurements inside ICT equipment down-stream from interface A (or A3).
• Type 2: external measurement at input junction box measurements up-stream from interface A (or A3).
• Type 3: power frame measurement at output of power supply system.
On complex big sites with many equipment from different manufacturers and of different types, users require power
and energy measurement of each ICT equipment and the global monitoring provided in power and air-conditioning is
not sufficiently accurate.
For measurement on the power system and power distribution frame, the issue is to manage on the long run the cabling
tracing and identification to be sure that the measurement always corresponds to the same considered ICT equipment. It
often happen that a power output cable is common to several equipment, powered in room through a secondary
distribution cabinet with smaller cables. With redundancy and double distribution from separate sources it is even more
complicated. In addition the distribution is changing with the evolutive life of the site.
For air condition, this can happen that the sensors are not located close enough to the ICT equipment so that the sensor
does not reflect the condition really seen by the ICT equipment.
So it seems much more reliable and stable to define the closest measurement as possible of the power input and of air
inlet of the ICT equipment.
It is preferred to measure powerinside the ICT equipment on the power input lines. If not possible it can be done outside
but always downstream interface A or A3 as defined in ETSI ETS 300 132-1 [3], ETSI EN 300 132-2 [7] and ETSI
EN 300 132-3-1 [i.15] of the considered ICT considered element under measurement.
When there are several power interface A or A3 inputs on the same ICT equipment, the sum of all power and energy
measurements shall be provided in the monitored data in addition to individual values.
The temperature and humidity in which the ICT equipment is operating, shall be taken by an external sensor located at
the air inlet of ICT equipment as defined in ETSI EN 300 019-2 series [10].
As in clause 4.3.1 for simple site, the data transmitted to the NMS shall be available on export line to another server as
specified in clause 4.5.
ETSI
15 ETSI ES 202 336-12 V1.1.1 (2015-06)
Type 3: Sensors
Type 2: Sensors at power input or in last
Type 1: built-in sensors
in power supply outputs
power distribution frame
A distribution
Telecom/ICT
Equipment
Power
source 1
Meters
B distribution
or sensors
Complex
bus
A or A3 Power
Telecom Site
interface
DC or AC Power
supply system
Telecom/ICT
Temperature/
+ XCU or DGU
humidity Equipment
ES 202 336-x
measurement
(x = 2 to 11)
at room
meters
or sensors
bus
Power
Control-
source 2
monitoring
Interoperable and
TMN
PEE
Unified protocol (TCP/IP
protocol
XCU or DGU
AC or DC power bus http(s) REST XML over
ES 202 336-12
Ethernet, GPRS, etc.) ES
202 336-1 to 12
Monitoring
Out of the scope
Data export
Power/cooling/ building infrastructure
NMS
Control not specified in
+ energy meters RMS
ES 202 336-12
Figure 3: Example of cohabitation of ICT equipment internal and external power/energy/environment
measurement acquisition in a site considering 3 cases of implementations (power frame
measurement, input junction box measurements, built-in measurements)
4.4 Measurement and monitoring description
4.4.0 General description
This description of measurement is split in the 3 following clauses (4.4.1, to 4.4.3):
• downstream interface A or A3 built-in measurement for new equipment (type 1);
• upstream interface A or A3 measurement for legacy equipment (type 2);
• common requirements.
4.4.1 Internal measurements type 1 (Built-in) in ICT equipment)
Power consumption measurement are done inside the ICT equipment.
The priority of measurement is on power inputs downstream of interface A of equipment, to be intended for the purpose
of the present document as interface A at shelf level (both for deployment in a rack or in a cabinet enclosure).
Optionally it can be provided measurement at board level.
In table 1, the power/energy/temperature measurement defined for each network element shall be applied.
ETSI
16 ETSI ES 202 336-12 V1.1.1 (2015-06)
Table 1: Description of measured equipment
Network Type Equipment Type Environment Power Equipment
Type interface Identification
Radio Access RRU, BBU, Wide area BS Indoor and DC or AC Equipment single
Network cabinet, Medium range BS, in 2G, outdoor identification code i.e.
3G, 4G, 5G for BBU and RRU, etc.
Fixed Access OLT, ONU, MSAN, DSLAM Indoor and Mainly DC Single NE identification
network (XDSL, MSAN, other FAN outdoor code i.e. for ONU,
equipment XDSL, etc.
Fixed BB cabinet as a whole that
can include the previous
equipment (indoor or outdoor)
Mobile and Fixed Node, optical transmission Mainly indoor DC
node equipment, etc.
Each equipment at the shelf level
for fixed network interface
Backhaul/transport Optical transmission equipment, Indoor and DC
microwave link, etc. Outdoor
IP routers and core Each equipment at shelf level in a Mainly indoor DC See note
switches node rack
Servers Each mass server (1 or 2U server Mainly indoor: AC or DC See note
generally in a shelf) Datacenter,
Each Blade server equipment Server room
(generally in a shelf) Shelter
Each mainframe unit (both for
rack or cabinet deployment)
Customer Premises ONT, modem, routers/switches,  See note
Equipment etc.
NOTE: Additional requirements can be found for IP equipment following IETF EMAN specifications referenced in
ETSI EN 300 132-2 [7].
The environment measurements (temperature, hygrometry) shall be done at the closest air inlet or/and on board.
The location of temperature sensors shall be justified by a precision measurement in factory test of the effect of
different location (i.e. top, down, middle left, right) on a fully equipped system (rack or cabinet).
The identification reference of the ICT equipment defined by the operator in its database shall be associated with the
power and cooling measurements to identify the equipment and its location.
The data shall be transmitted using the TMN monitoring protocol Recommendation [i.12] to the ICT management
system.
If an ICT equipment includes a power/energy/environment parameters monitoring interface, it shall be compliant to
ETSI ES 202 336-1 [1] and the present document for interoperability reason between ICT equipment or NMS and RMS
Interoperability on the TMN is out of the scope of the present document.
4.4.2 External measurements type 2 (external sensors) for ICT equipment
The measurement type 2 of the ICT equipment (same list as in table 1) is done externally upstream from interface A by
the following means:
• Current, Voltage sensors or Power or Energy Meters installed in electrical junction box or final power
distribution frames or by sensors for current.
• Multi sensor Acquisition unit.
• A PEE DGU or XCU.
NOTE: Sensors or meters can be interconnected to this XCU or DGU, by a bus.
The monitoring interface at the level of the XCU or DGU is ETSI ES 202 336-1 [1] with data information model of the
present document.
ETSI
17 ETSI ES 202 336-12 V1.1.1 (2015-06)
Other environmental measurements (temperature, humidity) shall be associated in order to perform correlation with the
power/energy measurements on the considered equipment. The temperature or humidity sensors have to be very close to
the air inlet of this equipment, which means several measurements on a multicabinet system.
4.4.3 Common requirements for external (type 2) and internal (type 1)
measurement
4.4.3.0 Principle of power consumption measurement
The principle of the measured data acquisition, of the local processing and of the robust data saving for a reliable
remote monitoring and control are given in in the following clauses (4.4.3.1 to 4.4.3.8). More details are given in
annex F on the data measurement chain and on state of the art measurement with fair accuracy.
4.4.3.1 Power consumption measurement
This power measurement is giving mandatory values defined in annex A. This is averaged power consumption in Watt
(or kW) over a preset period (see clause: acquisition period) at the input of the considered ICT equipment defined in
table 1.
4.4.3.2 Energy metering
The energy metering is giving mandatory values defined in annex A. The value is the cumulated energy metering in Wh
(or kWh) at the input of the considered ICT equipment defined in table 1. There can be cumulated energy value since
start of the equipment and over a preset period
4.4.3.3 Voltage, current and hygrometry measurement
The voltage, current and hygrometry measurement are non mandatory values defined in annex B.
4.4.3.4 Accuracies levels of current, voltage, power consumption measurement and
energy meter
The sensors shall be of technology giving a defined and stable accuracy with very low derating with temperature and
time duration.
The current measurement shall be RMS or averaged values to avoid important errors due to harmonic on the current.
NOTE: Averaging can be done by digital or analog circuit over the record period.
The accuracy shall be defined as follows:
• For power and energy measurement: ±3 % from 25 % to 100 % of maximum load of the equipment and ±5 %
below 25 % load, in which, the 100 % load is specified as the maximum power of each considered ICT
network equipment.
The accuracies of power and energy is defined in normal indoor operating temperature range of class 3.2 according to
part 3 of ETSI EN 300 019-1 serie [11
...

SLOVENSKI STANDARD
01-februar-2016
Okoljski inženiring (EE) - Nadzorovalni in krmilni vmesnik za infrastrukturno
opremo (elektroenergetski, hladilni in stavbni okoljski sistemi v
telekomunikacijskih omrežjih) - 12. del: Oprema za napajanje IKT, energija in
okoljski parametri za nadzorovanje informacijskega modela
Environmental Engineering (EE);Monitoring and control interface for infrastructure
equipment (power, cooling and building environment systems used in telecommunication
networks);Part 12: ICT equipment power, energy and environmental parameters
monitoring information model
Ta slovenski standard je istoveten z: ES 202 336-12 V1.1.1
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI STANDARD
Environmental Engineering (EE);
Monitoring and control interface for infrastructure equipment
(power, cooling and building environment systems used in
telecommunication networks);
Part 12: ICT equipment power, energy and environmental
parameters monitoring information model

2 ETSI ES 202 336-12 V1.1.1 (2015-06)

Reference
DES/EE-02037-12
Keywords
control, energy efficiency, interface,
management, network monitoring, power, system
ETSI
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ETSI
3 ETSI ES 202 336-12 V1.1.1 (2015-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 10
3.3 Abbreviations . 10
4 ICT power, energy and environmental parameters monitoring system . 11
4.1 General description. 11
4.2 Complementarity to existing site power and air-conditioning measurements . 12
4.3 Different site cases . 13
4.3.1 Simple site case . 13
4.3.2 Complex site case . 14
4.4 Measurement and monitoring description . 15
4.4.0 General description . 15
4.4.1 Internal measurements type 1 (Built-in) in ICT equipment) . 15
4.4.2 External measurements type 2 (external sensors) for ICT equipment . 16
4.4.3 Common requirements for external (type 2) and internal (type 1) measurement . 17
4.4.3.0 Principle of power consumption measurement . 17
4.4.3.1 Power consumption measurement . 17
4.4.3.2 Energy metering . 17
4.4.3.3 Voltage, current and hygrometry measurement . 17
4.4.3.4 Accuracies levels of current, voltage, power consumption measurement and energy meter . 17
4.4.3.5 Local acquisition record . 17
4.4.3.6 Accuracy verification . 18
4.4.3.7 Data transmission period . 18
4.4.3.8 Local record saving . 18
4.5 Power/Energy metering data analysis services . 18
Annex A (normative): Summary of mandatory monitoring / supervision information and
f unctions . 20
A.0 General descritpion of mandatory monitoring / supervision information and functions tables . 20
A.1 Table for ICT equipment power, energy and environmental parameters measurements . 20
Annex B (informative): Summary of non-mandatory monitoring / supervision information
and functions . 23
B.0 General descritpion of non mandatory monitoring / supervision information and functions tables . 23
B.1 Table for ICT equipment power, energy and environmental parameters . 23
Annex C (normative): Mandatory XML structure and elements . 25
C.1 Structure of an XML document for ICT Power/Energy/Environment metering . 25
Annex D (informative): 3GPP and E-UTRAN Management reference model and unified
interface Itf-N . 27
Annex E (informative): Fixed network Management reference model and unified interface. 29
ETSI
4 ETSI ES 202 336-12 V1.1.1 (2015-06)
Annex F (informative): State of the art of power, energy measurement and monitoring
systems . 30
F.0 Introduction . 30
F.1 Acquisition and remote metering principles. 30
F.2 General description of measurement . 32
F.2.1 General principle . 32
F.2.2 Measurement sensors . 32
Annex G (informative): Bibliography . 36
History . 37

ETSI
5 ETSI ES 202 336-12 V1.1.1 (2015-06)
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://ipr.etsi.org).
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 ETSI Standard (ES) has been produced by ETSI Technical Committee Environmental Engineering (EE).
The present document is part 12 of a multi-part deliverable covering monitoring and control interface for infrastructure
equipment (power, cooling and building environment systems used in telecommunication networks), as identified
below:
Part 1: "Generic Interface";
Part 2: "DC power system control and monitoring information model";
Part 3: "AC UPS power system control and monitoring information model";
Part 4: "AC distribution power system control and monitoring information model";
Part 5: "AC diesel back-up generator system control and monitoring information model";
Part 6: "Air Conditioning System control and monitoring information model";
Part 7: "Other utilities system control and monitoring information model";
Part 8: "Remote Power Feeding System control and monitoring information model";
Part 9: "Alternative Power Systems";
Part 10: "AC inverter power system control and monitoring information model";
Part 11: "Battery system with integrated control and monitoring information model";
Part 12: "ICT equipment power, energy and environmental parameters monitoring information model".
The goal of the present document is to define the measurement of electrical power and energy consumption of ICT
equipment as well as environmental parameters (temperature, hygrometry) in order to improve energy monitoring and
to correlate the power consumption to equipment operation activity (telecom traffic, computation, etc.). It is also to
define the transfer protocol of this measurement data from site to network operation centre. Knowing power
consumption gives the possibilities to reduce energy consumption of equipment and/or network. Granularity,
measurement period and accuracies are defined to meet these targets. They may depend on equipment types and
location in the different segments of a network (customer termination, access, core, data-center, etc.). In addition, these
measurements can be used to improve engineering and operation including more accurate dimensioning of power
systems, network evolution modelling and prevision, audit on field, etc.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
6 ETSI ES 202 336-12 V1.1.1 (2015-06)
1 Scope
The present document defines measurement and monitoring of power, energy and environmental parameters for ICT
equipment in telecommunications or datacenter or customer premises.
It defines the power, energy and environmental parameters monitoring interface of ICT equipment based on generic
ETSI ES 202 336-1 [1] interface so that correlations can be made with ICT equipment parameters (traffic, flowrate,
number of connected lines, radio setting, QoS KPI, etc.) in the network management system.
Correlations of monitored data (power, energy consumption and environmental values) with the ICT equipment
parameters and settings are not in the scope of the present document.
The monitoring interface covers:
• Internal power consumption measurement on the ICT equipment powered in DC and AC.
• Power consumption measurement external to the ICT equipment (if not implemented internally, e.g. legacy
equipment).
• Energy metering based on power consumption measurement.
• Environmental parameters of the ICT equipment (e.g. temperature at air inlet of equipment).
The present document defines:
• The minimum set of exchanged information required at the interface, described in "natural language" in text
tables including parameters such as precision, range, etc. and settings such as data acquisition periodicity, etc.
• The XML files with tags and variables corresponding to the data in the tables in complement to general rules
defined in ETSI ES 202 336-1 [1] and ETSI ES 202 336-2 [4].
2 References
2.1 Normative 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.
The following referenced documents are necessary for the application of the present document.
[1] ETSI ES 202 336-1: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 1: Generic Interface".
[2] ETSI ES 202 336 (all parts): "Environmental Engineering (EE); Monitoring and Control Interface
for Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks)".
[3] ETSI ETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct
current (dc) sources".
[4] ETSI ES 202 336-2: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (Power, Cooling and environment systems used in telecommunication
networks); Part 2: DC power system control and monitoring information model".
ETSI
7 ETSI ES 202 336-12 V1.1.1 (2015-06)
[5] ETSI ES 202 336-3: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 3: AC UPS power system control and monitoring information
model".
[6] ETSI ES 202 336-10: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 10: AC inverter power system control and monitoring
information model".
[7] ETSI EN 300 132-2: "Environmental Engineering (EE); Power supply interface at the input to
telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc)".
[8] ETSI ES 202 336-4: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 4: AC distribution power system control and monitoring
information model".
[9] ETSI ES 202 336-6: "Environmental Engineering (EE); Monitoring and Control Interface for
Infrastructure Equipment (Power, Cooling and Building Environment Systems used in
Telecommunication Networks); Part 6: Air Conditioning System control and monitoring
information model".
[10] ETSI EN 300 019-2 (all subparts): "Environmental Engineering (EE); Environmental conditions
and environmental tests for telecommunications equipment; Part 2: Specification of environmental
tests".
[11] ETSI EN 300 019-1 (all subparts): "Environmental Engineering (EE); Environmental conditions
and environmental tests for telecommunications equipment; Part 1: Classification of
environmental conditions".
2.2 Informative 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.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
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] IEEE 802.1 to 802.11: "IEEE Standard for Local & Metropolican Area Network".
[i.2] ISO/IEC 8879: "Information processing -- Text and office systems -- Standard Generalized
Markup Language (SGML)".
[i.3] ETSI ES 203 215: "Environmental Engineering (EE); Measurement Methods and Limits for Power
Consumption in Broadband Telecommunication Networks Equipment".
[i.4] ETSI ES 202 706: "Environmental Engineering (EE); Measurement method for power
consumption and energy efficiency of wireless access network equipment".
NOTE: ETSI ES 202 706 is revision of the ETSI TS 102 706.
[i.5] ETSI ES 201 554: "Environmental Engineering (EE); Measurement method for Energy efficiency
of Mobile Core network and Radio Access Control equipment".
[i.6] ETSI ES 203 184: "Environmental Engineering (EE); Measurement Methods for Power
Consumption in Transport Telecommunication Networks Equipment".
[i.7] ETSI ES 203 136: "Environmental Engineering (EE); Measurement methods for energy efficiency
of router and switch equipment".
ETSI
8 ETSI ES 202 336-12 V1.1.1 (2015-06)
[i.8] ETSI EN 301 575: "Environmental Engineering (EE); Measurement method for energy
consumption of Customer Premises Equipment (CPE)".
[i.9] ETSI ES 203 237: "Environmental Engineering (EE); Green Abstraction Layer (GAL); Power
management capabilities of the future energy telecommunication fixed network nodes".
[i.10] ETSI ES 203 228: "Environmental Engineering (EE); Assessment of Mobile Network Energy
Efficiency".
[i.11] Recommendation ITU-T M.3000 serie: "TMN and network maintenance: international
transmission systems, telephone circuits, telegraphy, facsimile and leased circuits
Telecommunications management network".
[i.12] Recommendation ITU-T M.3010 (Series M): "TMN and network maintenance: international
transmission systems, telephone circuits, telegraphy, facsimile and leased circuits
Telecommunications management network - Principles for a telecommunications management
network".
[i.13] ETSI TS 132 101 (V12.0.0): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Principles
and high level requirements (3GPP TS 32.101 version 12.0.0 Release 12)".
[i.14] ETSI EN 302 099: "Environmental Engineering (EE); Powering of equipment in access network".
[i.15] ETSI EN 300 132-3-1: "Environmental Engineering (EE); Power supply interface at the input to
telecommunications and datacom (ICT) equipment; Part 3: Operated by rectified current source,
alternating current source or direct current source up to 400 V; Sub-part 1: Direct current source
up to 400 V".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
NOTE: Terms referring to energy interface, equipment and distribution are described in power distribution
standards ETSI ETS 300 132-1 [3], ETSI EN 300 132-3-1 [i.15], ETSI EN 300 132-2 [7] for ac and dc
interface A and A3 and ETSI EN 302 099 [i.14] for access network equipment powering.
AC distribution power system: device or system that distribute AC voltage or convert DC voltage to AC voltage and
provides electrical power without interruption in the event that commercial power drops to an unacceptable voltage
level
alarm: any information signalling abnormal state, i.e. different to specified normal state of hardware, software,
environment condition (temperature, humidity, etc.)
NOTE: The alarm signal should be understood by itself by an operator and should always have at least one
severity qualification or codification (colour, level, etc.). alarm message structure are defined in ETSI
ES 202 336-1 [1].
EXAMPLE: Rectifier failure, battery low voltage, etc.
board: electronic part of an equipment (e.g. a blade server)
cabinet: closed enclosure including several shelves or racks
Control Unit (CU): integrated unit in an equipment to monitor and control this equipment through sensors and
actuators
ETSI
9 ETSI ES 202 336-12 V1.1.1 (2015-06)
Data Gathering Unit (DGU): functional unit used for several functions:
• collect serial, digital, and analog data from several equipment;
• option to send (output) serial or digital commands;
• forward/receive information to/from the Local/Remote Management Application via agreed protocols;
• mediation between interfaces and protocols.
NOTE: This function may be integrated as part of specific equipment.
DC back-up system: device or system that provides electrical power without interruption in the event that commercial
power drops to an unacceptable voltage level
DC distribution power system: device or system to distribute DC voltage
Ethernet: LAN protocol
NOTE: Equivalent to IEEE 802.1 to 802.11 [i.1].
event: any information signalling a change of state which is not an alarm: e.g. battery test, change of state of battery
charge
NOTE: The event signal should be understood by itself by an operator It should be transmitted in a formatted
structure with text message and other fields like for alarm. An event can be coded as an alarm with
severity "0".
eXtensible Mark-up Language (XML): application profile or restricted form of SGML
NOTE: By construction, XML documents are conforming SGML the Standard Generalized Markup Language
(ISO/IEC 8879 [i.2]) documents. XML is designed to describe data and focus on what data is. XML
should be discerned from the well known Hypertext Transfer Mark-up Language (HTML) which was
designed to display data and to focus on how data looks.
infrastructure equipment: power, cooling and building environment systems used in telecommunications centres and
Access Networks locations
EXAMPLE: Cabinets, shelters, underground locations, etc.
module: closed unit including electronic boards forming part of a larger system (e.g. sub-unit of a base station in a
cabinet or separated)
rack: sub part of the cabinet including ICT equipment rest
shelf: level in a cabinet
Warning: low severity alarm
World Wide Web Consortium (W3C): consortium founded in October 1994 to develop common interoperable
protocols and promote World Wide Web
NOTE: See http://www.w3c.org.
XCU: CU enabled to communicate using XML interface as defined in the present document
xDSL: global designation of the digital subscriber line (DSL) technologies
ETSI
10 ETSI ES 202 336-12 V1.1.1 (2015-06)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
E electric energy
I electric current
P electric power
T temperature
U electric voltage or difference of potential
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
µC Microcontroler
AC Alternating Current
ADC Analog Digital Conversion or Converter
ADSL Asynchronous Digital Subscriber Line
BB Broad-Band
BBU Base-Band Unit
BS Base Station
CU Control Unit of an equipment
DC Direct Current
DGU Data Gathering Unit
DSLAM Digital Subscriber Line Access Multiplexer
EEPROM Electricaly Erasable Programmable Read Only Memory
EMAN Energy Manager (abbreviation of IETF specification)
E-UTRAN Extended UTRAN
FAN Fixed Access Network
HTML Hypertext Transfer Make-up Language
HTTP HyperText Transfer Protocol
ICT Information and Communication Technology
IETF Internet Engineering Task Force
IP Internet Protocol
KPI Key Performance Indicator
LAN Local Array Network
MSAN Multiservice Access Network
NE Network Element
NMS Network Management System
OA Operational Amplifier
OLT Opitcal Line Termination
ONT Optical Network Termination
ONU Optical Network Unit
OSS Operations Support System
PEE Power, Energy, Environmental parameters
PF Power Factor
PSU Power Supply Unit
RMA Remote Management Application
RMS Root Mean Square
RRU Remote Radio Unit
SGML Standard Generalized Markup Language
TCP Transmission Control Protocol for IP
TMN Telecom Management Network
NOTE: As defined in Recommendation ITU-T M.3000 series [i.11].
UPS Un-interruptible Power Supply
UTRAN Extended Terrestrial Radio Access Network
W3C World Wide Web Consortium
XCU XML enabled CU
XML eXtensible Mark-up Language (see W3C)
ETSI
11 ETSI ES 202 336-12 V1.1.1 (2015-06)
4 ICT power, energy and environmental parameters
monitoring system
4.1 General description
The basic principles of power, energy and environment parameters measurements of ICT equipment and their transfer
to the network management systems (NMS) are shown in figure 1.
The following measuring device are used: wattmeter or energy meter (W, Wh) and/or Voltage (V) and/or current meter
(A). Voltage or current shall be recorded for monitoring when used to assess the power and energy consumption.
Temperature shall also be measured and recorded.
NOTE 1: The energy consumption can be calculated from power measurement over a period of time.
NOTE 2: Humidity should be measured at the level of room or air conditioning, not at equipment level.
In the preferred implementation, power and energy measurements shall be taken down-stream of power supply interface
A or A3 as defined in ETSI ETS 300 132-1 [3], ETSI EN 300 132-2 [7] and ETSI EN 300 132-3-1 [i.15] and inside the
ICT equipment (type 1 measurement).
Otherwise e.g. on legacy equipment, power and energy measurements can be taken upstream of interface A outside the
ICT equipment (type 2 measurement).
The electrical measurement sensors shall be located the closest as possible of the power electrical interface (A or A3)
and the thermal environment sensors shall be placed in the air flow of the air inlet of the equipment or shelter.
For interoperability, measurement values are transmitted directly using ETSI ES 202 336-1 [1] and the present
document's protocol, or indirectly through the TMN protocol over the NMS.
NOTE 3: The Network Management System (NMS) is the functional entity from which the network operator
monitors and controls the system at centralized level and manage operational and maintenance activities,
it is using a TMN protocol not defined in the present document. The operation and Maintenance functions
are based on the principles of the Telecommunication Management Network (TMN) of Recommendation
ITU-T M.3010 [i.12] introduced by Recommendation ITU-T M.3000 series [i.11].
NOTE 4: The measurements done using this standard can be used as inputs for enabling:
- assessment of Power Consumption in Broadband Telecommunication Networks Equipment [i.3]
Transport Telecommunication Networks Equipment [i.6], Customer Premises Equipment (CPE) [i.8];
- assessment of Energy efficiency of wireless access network equipement [i.4], Core network
equipment [i.5], router and switch equipment [i.7], Mobile Network [i.10];
- Power management capabilities of the future energy telecommunication fixed network nodes with
Green Abstraction Layer (GAL) [i.9].
ETSI
12 ETSI ES 202 336-12 V1.1.1 (2015-06)
Builing controls XCU/DGU
Power/cooling/
building infrastructure
Cooling systems XCU/DGU
Control-monitoring
Power plants XCU or DGU
+ Energy meters
PEE
Interoperable
Remote Management
XCU or DGU
and unified protocol
Server (RMS)
ES 202 336-12
(TCP/IP http(s) REST XML
over Ethernet, GPRS, etc.)
ES 202 336-1 to 12
Control
Data
Type 2: External
(not specified
export
sensors
in ES 202 336-12)
Monitoring
A or A3
power interface
Air
Network
inle t TMN protocol
Type 1 :
Management
Telecom/ICT
Embedded System (NMS)
equipment
sensors
Telecom site
NOTE 1: On figure 1, some ICT sites may not have all of the parts (building, power, cooling) and therefore
monitoring interface would not be required.
NOTE 2: A ICT equipment of a vendor X is in general connected to the NMS of the vendor X, but the power/air
conditioning /building infrastructure RMS can be from a vendor Y.

Figure 1: Principle of the monitoring of ICT equipment power, energy and environment parameters
4.2 Complementarity to existing site power and air-conditioning
measurements
The power/energy and environmental parameters measurement on ICT equipment as standardized in the present
document are complementary to the measurements already achieved at the site and room level on the power and air
conditioning systems in compliance with the ETSI ES 202 336 serie [2] introduced in main standard ETSI
ES 202 336-1 [1], in particular in standard ETSI ES 202 336-4 [8], ETSI ES 202 336-10 [6], ETSI ES 202 336-3 [5],
ETSI ES 202 336-2 [4] and ETSI ES 202 336-6 [9].
Considering these monitoring standards, there can be already many existing measurements in existing sites on power,
cooling and distributions systems:
• AC and DC current or power sensors;
• AC and DC energy meters;
• Voltage, current, phases/frequency measurement sensors;
• Power factor measurement device;
• Sensors bus;
• Monitoring and control unit (XCU) compliant with ETSI ES 202 336-1 [1].
ETSI
13 ETSI ES 202 336-12 V1.1.1 (2015-06)
NOTE 1: For very critical site, there could be additional power quality monitoring measurements (e.g. harmonic
currents amplitude, power factor, distorsion, dips, etc.).
NOTE 2: The measurements transmitted through ETSI ES 202 336 series [2] can be used if they respects the
requirement of the present document.
4.3 Different site cases
4.3.1 Simple site case
Two types (see figure 2) of PEE monitoring can exist in a simple ICT site, and how compatibility is ensured between
these types with the remote monitoring:
• Type 1: built-in measurements inside ICT equipment down-stream from interface A (or A3).
• Type 2: external measurement at input junction box measurements up-stream from interface A (or A3).
Internal power consumption and environment sensors and external measurement connected to an energy
metering/environment XCU shall be used as defined in clause 4.4. Humidity measurements are optional.
Data export from NMS to the power/cooling remote management server shall use the ETSI ES 202 336-1 [1] and the
present standard. The NMS can also be used for dialog with other type of server as explained in clause 4.5.
PEE
Power Supply System
Control-monitoring
Power/cooling/
XCU or DGU
(e.g. for -48 VDC, 230VAC,
building infrastructure
ES 202 336-12
400VDC, …) XCU or DGU
Interoperable
and unified protocol
+ Energy meters
(TCP/IP http(s) REST
XML over Ethernet,
Remote Management
GPRS, etc.)
Server (RMS)
ES 202 336-1 to 12
Control
Data
(not specified
Type 2: External
export
in ES 202 336-12)
Monitoring
sensors
A or A3
power interface
Air
Network
inle t TMN protocol
Management
Type 1 : Telecom/ICT
System (NMS)
Embedded sensors
Equipment
Telecom Site
Figure 2: Example of possible implementation in a simple Telecom site
(e.g. a radio mobile site with ICT/Telecom connected to an OSS/NMS)
ETSI
14 ETSI ES 202 336-12 V1.1.1 (2015-06)
4.3.2 Complex site case
The figure 3 gives example of 3 cases of monitoring of PEE that can exists in a complex ICT site, and how
compatibility is ensured between these cases with the remote monitoring:
• Type 1: built-in measurements inside ICT equipment down-stream from interface A (or A3).
• Type 2: external measurement at input junction box measurements up-stream from interface A (or A3).
• Type 3: power frame measurement at output of power supply system.
On complex big sites with many equipment from different manufacturers and of different types, users require power
and energy measurement of each ICT equipment and the global monitoring provided in power and air-conditioning is
not sufficiently accurate.
For measurement on the power system and power distribution frame, the issue is to manage on the long run the cabling
tracing and identification to be sure that the measurement always corresponds to the same considered ICT equipment. It
often happen that a power output cable is common to several equipment, powered in room through a secondary
distribution cabinet with smaller cables. With redundancy and double distribution from separate sources it is even more
complicated. In addition the distribution is changing with the evolutive life of the site.
For air condition, this can happen that the sensors are not located close enough to the ICT equipment so that the sensor
does not reflect the condition really seen by the ICT equipment.
So it seems much more reliable and stable to define the closest measurement as possible of the power input and of air
inlet of the ICT equipment.
It is preferred to measure powerinside the ICT equipment on the power input lines. If not possible it can be done outside
but always downstream interface A or A3 as defined in ETSI ETS 300 132-1 [3], ETSI EN 300 132-2 [7] and ETSI
EN 300 132-3-1 [i.15] of the considered ICT considered element under measurement.
When there are several power interface A or A3 inputs on the same ICT equipment, the sum of all power and energy
measurements shall be provided in the monitored data in addition to individual values.
The temperature and humidity in which the ICT equipment is operating, shall be taken by an external sensor located at
the air inlet of ICT equipment as defined in ETSI EN 300 019-2 series [10].
As in clause 4.3.1 for simple site, the data transmitted to the NMS shall be available on export line to another server as
specified in clause 4.5.
ETSI
15 ETSI ES 202 336-12 V1.1.1 (2015-06)
Type 3: Sensors
Type 2: Sensors at power input or in last
Type 1: built-in sensors
in power supply outputs
power distribution frame
A distribution
Telecom/ICT
Equipment
Power
source 1
Meters
B distribution
or sensors
Complex
bus
A or A3 Power
Telecom Site
interface
DC or AC Power
supply system
Telecom/ICT
Temperature/
+ XCU or DGU
humidity Equipment
ES 202 336-x
measurement
(x = 2 to 11)
at room
meters
or sensors
bus
Power
Control-
source 2
monitoring
Interoperable and
TMN
PEE
Unified protocol (TCP/IP
protocol
XCU or DGU
AC or DC power bus http(s) REST XML over
ES 202 336-12
Ethernet, GPRS, etc.) ES
202 336-1 to 12
Monitoring
Out of the scope
Data export
Power/cooling/ building infrastructure
NMS
Control not specified in
+ energy meters RMS
ES 202 336-12
Figure 3: Example of cohabitation of ICT equipment internal and external power/energy/environment
measurement acquisition in a site considering 3 cases of implementations (power frame
measurement, input junction box measurements, built-in measurements)
4.4 Measurement and monitoring description
4.4.0 General description
This description of measurement is split in the 3 following clauses (4.4.1, to 4.4.3):
• downstream interface A or A3 built-in measurement for new equipment (type 1);
• upstream interface A or A3 measurement for legacy equipment (type 2);
• common requirements.
4.4.1 Internal measurements type 1 (Built-in) in ICT equipment)
Power consumption measurement are done inside the ICT equipment.
The priority of measurement is on power inputs downstream of interface A of equipment, to be intended for the purpose
of the present document as interface A at shelf level (both for deployment in a rack or in a cabinet enclosure).
Optionally it can be provided measurement at board level.
In table 1, the power/energy/temperature measurement defined for each network element shall be applied.
ETSI
16 ETSI ES 202 336-12 V1.1.1 (2015-06)
Table 1: Description of measured equipment
Network Type Equipment Type Environment Power Equipment
Type interface Identification
Radio Access RRU, BBU, Wide area BS Indoor and DC or AC Equipment single
Network cabinet, Medium range BS, in 2G, outdoor identification code i.e.
3G, 4G, 5G for BBU and RRU, etc.
Fixed Access OLT, ONU, MSAN, DSLAM Indoor and Mainly DC Single NE identification
network (XDSL, MSAN, other FAN outdoor code i.e. for ONU,
equipment XDSL, etc.
Fixed BB cabinet as a whole that
can include the previous
equipment (indoor or outdoor)
Mobile and Fixed Node, optical transmission Mainly indoor DC
node equipment, etc.
Each equipment at the shelf level
for fixed network interface
Backhaul/transport Optical transmission equipment, Indoor and DC
microwave link, etc. Outdoor
IP routers and core Each equipment at shelf level in a Mainly indoor DC See note
switches node rack
Servers Each mass server (1 or 2U server Mainly indoor: AC or DC See note
generally in a shelf) Datacenter,
Each Blade server equipment Server room
(generally in a shelf) Shelter
Each mainframe unit (both for
rack or cabinet deployment)
Customer Premises ONT, modem, routers/switches,  See note
Equipment etc.
NOTE: Additional requirements can be found for IP equipment following IETF EMAN specifications referenced in
ETSI EN 300 132-2 [7].
The environment measurements (temperature, hygrometry) shall be done at the closest air inlet or/and on board.
The location of temperature sensors shall be justified by a precision measurement in factory test of the effect of
different location (i.e. top, down, middle left, right) on a fully equipped system (rack or cabinet).
The identification reference of the ICT equipment defined by the operator in its database shall be associated with the
power and cooling measurements to identify the equipment and its location.
The data shall be transmitted using the TMN monitoring protocol Recommendation [i.12] to the ICT management
system.
If an ICT equipment includes a power/energy/environment parameters monitoring interface, it shall be compliant to
ETSI ES 202 336-1 [1] and the present document for interoperability reason between ICT equipment or NMS and RMS
Interoperability on the TMN is out of the scope of the present document.
4.4.2 External measurements type 2 (external sensors) for ICT equipment
The measurement type 2 of the ICT equipment (same list as in table 1) is done externally upstream from interface A by
the following means:
• Current, Voltage sensors or Power or Energy Meters installed in electrical junction box or final power
distribution frames or by sensors for current.
• Multi sensor Acquisition unit.
• A PEE DGU or XCU.
NOTE: Sensors or meters can be interconnected to this XCU or DGU, by a bus.
The monitoring interface at the level of the XCU or DGU is ETSI ES 202 336-1 [1] with data information model of the
present document.
ETSI
17 ETSI ES 202 336-12 V1.1.1 (2015-06)
Other environmental measurements (temperature, humidity) shall be associated in order to perform correlation with the
power/energy measurements on the considered equipment. The temperature or humidity sensors have to be very close to
the air inlet of this equipment, which means several measurements on a multicabinet system.
4.4.3 Common requirements for external (type 2) and internal (type 1)
measurement
4.4.3.0 Principle of power consumption measurement
The principle of the measured data acquisition, of the local processing and of the robust data saving for a reliable
remote monitoring and control are given in in th
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