ETSI ES 202 336-6 V1.1.1 (2012-09)

Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)

ETSI Standard
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
2 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)

Reference
DES/EE-02037-6
Keywords
control, interface, management, power, system
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3 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 8
4 Air conditioning systems . 8
Annex A (normative): Summary of mandatory monitoring / supervision information and
f unctions . 12
A.1 Table for air conditioning system without chillers . 13
A.2 Table for air conditioning system with chillers . 14
Annex B (informative): Summary of non-mandatory monitoring / supervision information
and functions . 15
B.1 Table for air conditioning system without chillers . 16
B.2 Table for air conditioning system with chillers . 18
Annex C (normative): Mandatory XML structure and elements . 20
C.1 Structure of an XML document for an air conditioning system . 20
C.2 The specific elements of an air conditioning system . 22
Annex D (informative): Bibliography . 23
History . 24

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4 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)
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 final draft ETSI Standard (ES) has been produced by ETSI Technical Committee Environmental Engineering (EE),
and is now submitted for the ETSI standards Membership Approval Procedure.
The present document is part 6 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].
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5 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)
1 Scope
The present document applies to monitoring and control of air conditioning Systems for telecommunication equipment.
This multi-part deliverable defines:
• The monitored and controlled air conditioning system architectures.
• The minimum set of exchanged information required at the interface, described in "natural language" in text
tables.
• XML structure specific to the present document.
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
referenced 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.
[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 EN 300 019 (all parts): "Environmental Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment".
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] IEEE 802.1 to 802.11: "IEEE Standard for Local & Metropolitan Area Network".
[i.2] ISO/IEC 10164: "Information technology - Open Systems Interconnection - Systems Management:
Objects and attributes for access control".
[i.3] ISO/IEC 8879: "Information processing - Text and office systems - Standard Generalized Markup
Language (SGML)".
[i.4] ETSI TR 102 336: "Environmental Engineering (EE); Power and cooling system control and
monitoring guidance".
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6 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
air conditioner: encased assembly or assemblies designed as an appliance to provide delivery of conditioned air to an
enclosed space, room or zone
NOTE: It includes an electrically operated refrigeration system for cooling and possibly dehumidifying the air. It
may have means for heating, circulating, cleaning and humidifying the air.
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.). Example: fan failure, temperature low, …).
alarm loop: electrical loop which open or closed state correspond to alarm start (set) or end (clear) state
alarm message: text parts of the alarm structure
alarm structure: organized set of information fields in an alarm data frame (time stamp, set/clear, text, etc.)
client post: any device (laptop, PDA, console, etc.) connected to servers via the operation system networks to perform
maintenance or supervision operations
Control Unit (CU): integrated unit in an equipment to monitor and control this equipment through sensors and
actuators
Control form Style Sheet (CSS): simple mechanism for adding style (e.g. fonts, colours, spacing) to Web documents
EXAMPLE: Tutorials, books, mailing lists for users, etc.
Data Gathering Unit (DGU): functional unit used for several functions:
• collect serial, digital, and analogue 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.
Dynamic Host Control Protocol (DHCP): protocol used for self configuration of TCP/IP parameters of a workstation
assigning IP address and a sub network mask
NOTE: DHCP may also configure DNS.
Dynamic Name Server (DNS): associates a single domain name to an IP address
dynamic synoptic: dynamic display of geographical maps, networks, installations and equipment
Ethernet: LAN protocol
NOTE: Equivalent to IEEE 802.1 to 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 and should always have at least one
severity qualification or codification (colour, level, etc.). It should be transmitted in a formatted structure
with text message and other fields like for alarm, e.g. an event can be coded as an alarm with severity "0".
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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.3]). XML is designed to describe data and focus on what data is. XML is discerned
from the well known Hypertext Transfer Mark-up Language (HTML) which was designed to display data
and to focus on how data looks.
eXtensible Style sheet Language (XSL): language for expressing style sheets
NOTE: It consists of two parts, a language for transforming XML documents, and an XML vocabulary for
specifying formatting semantics. An XSL style sheet specifies the presentation of a class of XML
documents by describing how an instance of the class is transformed into an XML document that uses the
formatting vocabulary.
infrastructure equipment: power, cooling and building environment systems used in telecommunications centres and
Access Networks locations
NOTE: Examples of the infrastructure equipment are cabinets, shelters, underground locations, etc.
intranet: internal company network generally using Ethernet protocol and extended IP addresses
logbook: chronological file that contains alarm and event messages may be paper or electronic
Management Information Base (MIB): dynamic data base that gathers all objects and should evolve to include
automatic and manual configuration tools with self coherence tests
menu: list of possible input command choices that may be presented in different ways on a display
NOTE: Selection is normally made by a keyboard, a pointing device, a mouse or directly by finger on a sensitive
screen.
object: class description of items that accept a set of properties or functions
NOTE: Generic objects can include more specific items and inherit from their properties. If correctly structured,
object programming can allow the system to evolve, i.e. be more future-proof. The code should
intrinsically be open and structured.
Hypertext Preprocessor (PHP): powerful tool for making dynamic and interactive Web pages
pop-up: information or command screen that appears when a menu choice is selected
NOTE: For example this may be a pop-up menu when the pointer is on a title button.
REpresentational State Transfer (REST): way to build an application for distributed system as www
Simple Object Access Protocol (SOAP): way to communicate between applications running on different operating
systems, with different technologies and programming languages
NOTE: SOAP communicates over HTTP, because HTTP is supported by all Internet browsers and servers, SOAP
traffic is not blocked by firewalls and proxy servers (see W3C).
Systems Management Function (SMF): object properties or classes with projection on CMIS application context
communication
NOTE: Set of ISO system management functions according to ISO/IEC 10164 [i.2].
warning: low severity alarm
web: common name for the Internet or Intranet
windows: virtual area on the display that corresponds to a specific application
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.
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XCU: CU enabled to communicate using XML interface as defined in the present document
XHTML: stricter and cleaner version of HTML. XHTML consists of all the elements in HTML 4.01 combined with
the syntax of XML
NOTE: It can be read by all XML browsers (see W3C).
XML Schema Definition (XSD): new more detailed XML description compared to the previous one, the DTD
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACU Air Conditioning Unit
CSS Control form Style Sheet
CU Control Unit of an equipment
DCU Direct Cooling Unit
DGU Data Gathering Unit
DHCP Dynamic Host Control Protocol
DNS Dynamic Name Server
DTD Document Type Definition
DX Direct eXpansion
FMU Fan Monitor Unit
HTML Hypertex Transfer Make-up Language
HTTP Hypertex Transfer Protocol
HX Heat eXchange
IP Internet Protocol
LAN Local Area Network
MCS Membrane Cooling System
MIB Management Information Base
MN Management Network
PHP Hypertext Preprocessor
REST REpresentational State Transfer
RMA Remote Management Application
SMF Systems Management Function
SOAP Simple Object Access Protocol
TEC ThermoElectric Cooler
TCP Transmission Control Protocol for IP
W3C World Wide Web Consortium
XCU XML enabled CU
XML eXtensible Markup Language
4 Air conditioning systems
The Air conditioning system subset is described in ES 202 336-1 [1] and TR 102 336 [i.4].
The Air conditioning systems addressed by the present document are depicted in figures 1 and 2. One single control unit
XCU can monitor and control several air conditioning systems through field bus. Field bus is outside the scope of this
multi-part deliverable.
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9 Final draft ETSI ES 202 336-6 V1.1.1 (2012-07)

Figure 1: Air conditioning system (without chillers)

Figure 2: Air conditioning system (with chillers)
NOTE: The Cooling coil shown in figure 2 may be part of a Direct Expansion chiller circuit (as shown) or could
be supplied with chilled water from a remotely sited centralized cooling plant.
The main function of air conditioning systems is to use the temperature control system (such as fans, compressor
chillers or water-cooling device) to control the telecom system environment (including the equipment room and
equipment cabinets) at the appropriate humidity and temperature.
Air conditioning systems without chillers as depicted in figure 1 usually include the following main components:
• System controller unit e.g. XCU
• Cooling fan(s)
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• Fan monitoring
...