SIST EN 305 174-2 V1.1.1:2018

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dostop, terminali, prenos in multipleksiranje (ATTM) - Upravljanje uvajanja širokopasovnosti in življenjskega cikla virov - 2. del: Strani ICTAccess, Terminals, Transmission and Multiplexing (ATTM) - Broadband Deployment and Lifecycle Resource Management - Part 2: ICT Sites35.020Informacijska tehnika in tehnologija na splošnoInformation technology (IT) in general13.020.60Življenjski ciklusi izdelkovProduct life-cyclesICS:Ta slovenski standard je istoveten z:ETSI EN 305 174-2 V1.1.1 (2018-02)SIST EN 305 174-2 V1.1.1:2018en01-maj-2018SIST EN 305 174-2 V1.1.1:2018SLOVENSKI

ETSI EN 305 174-2 V1.1.1 (2018-02) Access, Terminals, Transmission and Multiplexing (ATTM); Broadband Deployment and Lifecycle Resource Management; Part 2: ICT Sites

Reference REN/ATTM-002 Keywords broadband, energy management, ICT, sustainability ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE

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ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 3 Contents Intellectual Property Rights ................................................................................................................................ 5 Foreword ............................................................................................................................................................. 5 Modal verbs terminology .................................................................................................................................... 6 Introduction ........................................................................................................................................................ 6 1 Scope ........................................................................................................................................................ 7 2 References ................................................................................................................................................ 7 2.1 Normative references ......................................................................................................................................... 7 2.2 Informative references ........................................................................................................................................ 7 3 Definitions and abbreviations ................................................................................................................... 8 3.1 Definitions .......................................................................................................................................................... 8 3.2 Abbreviations ..................................................................................................................................................... 9 4 Broadband deployment and ICT sites .................................................................................................... 10 4.1 ICT sites ........................................................................................................................................................... 10 4.1.1 General ........................................................................................................................................................ 10 4.1.2 Operator Site (OS) ...................................................................................................................................... 11 4.1.3 Network Data Centre (NDC) ...................................................................................................................... 11 4.2 Element of ICT sites ......................................................................................................................................... 12 4.2.1 ICT equipment ............................................................................................................................................ 12 4.2.2 Power supply and power distribution.......................................................................................................... 12 4.2.3 Environmental control ................................................................................................................................ 13 4.2.4 Telecommunications cabling infrastructure ................................................................................................ 13 4.2.5 Security systems ......................................................................................................................................... 13 4.3 Availability ....................................................................................................................................................... 13 5 Standardization review for ICT sites ...................................................................................................... 14 6 Requirements for ICT sites ..................................................................................................................... 14 6.1 General engineering to support energy management ....................................................................................... 14 6.1.1 General ........................................................................................................................................................ 14 6.1.2 Design ......................................................................................................................................................... 14 6.1.2.1 General .................................................................................................................................................. 14 6.1.2.2 Power supply and distribution ............................................................................................................... 15 6.1.2.3 Environmental control ........................................................................................................................... 15 6.1.2.4 Lighting ................................................................................................................................................. 15 6.1.2.5 Measurement of energy consumption ................................................................................................... 15 6.1.3 Operation .................................................................................................................................................... 16 6.1.3.1 General .................................................................................................................................................. 16 6.1.3.2 Power supply and distribution ............................................................................................................... 16 6.1.3.3 Environmental control ........................................................................................................................... 16 6.1.3.4 ICT equipment and software ................................................................................................................. 17 6.1.3.5 Measurement of energy consumption ................................................................................................... 17 6.2 General engineering to support interoperability ............................................................................................... 17 6.3 Monitoring of energy management .................................................................................................................. 17 6.4 Managing EoL of ICT equipment .................................................................................................................... 17 Annex A (informative): Recommendations for general engineering ......................................................... 18 A.1 General ................................................................................................................................................... 18 A.2 Design..................................................................................................................................................... 18 A.3 Operation ................................................................................................................................................ 18 Annex B (informative): Future structure of this multi-part deliverable ................................................... 19 History .............................................................................................................................................................. 20 SIST EN 305 174-2 V1.1.1:2018

List of figures Figure 1: Network sub-systems of fixed broadband access network infrastructure ..........................................................10 Figure 2: Network sub-systems of mobile broadband access network infrastructure .......................................................11 Figure 3: Schematic of ICT sites composition and connectivity .......................................................................................12

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 5 Intellectual Property Rights Essential patents

IPRs essential or potentially essential to normative deliverables 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 (https://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. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is part 2 of a multi-part deliverable, covering lifecycle resource management of broadband deployment as identified below: ETSI EN 305 174-1: "Overview, common and generic aspects"; ETSI EN 305 174-2: "ICT Sites"; ETSI TS 105 174-4: "Access Networks"; ETSI EN 305 174-5: "Customer network infrastructures"; ETSI TS 105 174-6: "Cable Access Networks"; ETSI TS 105 174-7: "Digital multiservice cities"; ETSI EN 305 174-8: "Management of end of life of ICT equipment (ICT waste / end of life)". Other documents are planned for development to extend this multi-part deliverable. These are listed in annex B and are mentioned in the present document.

National transposition dates Date of adoption of this EN: 22 February 2018 Date of latest announcement of this EN (doa): 31 May 2018 Date of latest publication of new National Standard or endorsement of this EN (dop/e):

30 November 2018 Date of withdrawal of any conflicting National Standard (dow): 30 November 2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 6 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. Introduction The increasing interaction between the different elements of the Information Communication Technology (ICT) sector (hardware, middleware, software and services) supports the concept of convergence in which: • multi-service packages can be delivered over a common infrastructure; • a variety of infrastructures is able to deliver these packages; • a single multi-service-package may be delivered over different infrastructures. As a result of this convergence, the development of new services, applications and content has resulted in: • an increased demand for bandwidth, reliability, quality and performance, with a consequent increase in the demand for power which has implications for cost and, in some cases, availability; • an associated continuous evolution of ICT equipment. It is therefore important to consider the environmental viability of all network elements necessary to deliver the required services in terms of the management of their operational aspects i.e. energy management (including energy efficiency) and the management of the End-of-Life (EoL) of the ICT equipment. NOTE: The term "environmental viability" is used while recognizing that well established treatments of "sustainability" feature three separate viability objectives (environmental, economic and social). For the purposes of this multi-part deliverable only operational aspects of environmental viability are considered. A wider approach to environmental viability takes other factors into account including the use of raw materials and avoidance of hazardous substances in the construction of infrastructure or ICT equipment- these factors are not considered. New technologies and infrastructure strategies are expected to enable operators to decrease the energy consumption, for a given level of service, of their existing and future infrastructures, thus decreasing their costs. This requires a common understanding among market participants that only standards can produce. This multi-part deliverable specifies the general engineering of various broadband infrastructures to enable the most effective energy management (and management of other resources) and the appropriate measures for EoL treatment of ICT equipment. Certain of the standards may specify requirements for interoperability. The present document is part 2 of a multi-part deliverable and specifies requirements for ICT sites within broadband deployment infrastructures. The present document has been produced by ETSI Technical Committees Access, Terminals, Transmission and Multiplexing (ATTM) and Cable in close collaboration with CENELEC, via the Installations and Cabling Co-ordination Group (ICCG). SIST EN 305 174-2 V1.1.1:2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 7 1 Scope The present document is part 2 of a multi-part deliverable which specifies the general engineering of various broadband infrastructures to enable the most effective energy management (and management of other resources) and the appropriate measures for EoL treatment of ICT equipment. The present document specifies the requirements for resource management of ICT sites, as a combination of: • energy management; • management of the End-of-Life (EoL) procedures for ICT equipment by reference to ETSI EN 305 174-8 [1]. 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 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. The following referenced documents are necessary for the application of the present document. [1] ETSI EN 305 174-8: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband Deployment and Lifecycle Resource Management; Part 8: Management of end of life of ICT equipment (ICT waste / end of life)". [2] ETSI EN 305 200-2-1: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;

Sub-part 1: ICT Sites". 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 referenced 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] CEN EN 15978: "Information Sustainability of construction works - Assessment of environmental performance of buildings - Calculation method". [i.2] CENELEC CLC/TR 50600-99-1: "Information technology - Data centre facilities and infrastructures - Part 99-1: Recommended practices for energy management". [i.3] CENELEC EN 50600-1: "Information technology - Data centre facilities and infrastructures - Part 1: General concepts". [i.4] CENELEC EN 50600-2-2: "Information technology - Data centre facilities and infrastructures - Part 2-2: Power supply and power distribution". SIST EN 305 174-2 V1.1.1:2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 8 [i.5] CENELEC EN 50600-2-3: "Information technology - Data centre facilities and infrastructures - Part 2-3: Environmental control". [i.6] CENELEC EN 50600-2-4: "Information technology - Data centre facilities and infrastructures - Part 2-4: Telecommunications infrastructure". [i.7] CENELEC EN 50600-4-2: "Information technology - Data centre facilities and infrastructures - Part 4-2: Power usage effectiveness". [i.8] CENELEC EN 50600-4-3: "Information technology - Data centre facilities and infrastructures - Part 4-3: Renewable energy factor". [i.9] ISO EN 14001: "Environmental management systems. Requirements with guidance for use". [i.10] ISO EN 14040: "Environmental management. Life cycle assessment. Principles and framework". [i.11] ISO EN 14044: "Environmental management. Life cycle assessment. Requirements and guidelines". [i.12] ISO EN 50001: "Energy management systems. Requirements with guidance for use". [i.13] ETSI EN 305 200-3-1: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 3: ICT Sites; Sub-part 1: DCEM". [i.14] ETSI TS 105 174-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Broadband Deployment and Energy Management; Part 2: ICT sites". [i.15] EU Code of Conduct for AC Uninterruptible Power Supplies. [i.16] ISO/IEC 20000 series: "Information technology. Service management". [i.17] CENELEC EN 50600-3-1: "Information technology - Data centre facilities and infrastructures - Part 3-1: Management and operational information". [i.18] Mandate M/462: "Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of ICT to enable efficient energy use in fixed and mobile information and communication networks". 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: access network: functional elements (that is equipment and infrastructure) that enable communication between an Operator Site (OS) and a customer network Base Station (BS): network telecommunications equipment which serves one or more cells within a coverage area of a mobile network base station site: Network Distribution Node (NDN) which accommodates a base station core network: functional elements (that is equipment and infrastructure) that enable communication between Operator Sites (OSs) or equivalent ICT sites End-of-Life (EoL): established point in a product life cycle after a period of primary use and at which a decision is required with regard to reuse, recycling or disposal free cooling: use of low temperatures, external to the ICT site, to reduce or eliminate the need for powered refrigeration ICT equipment: equipment providing data storage, processing and transport services NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment. SIST EN 305 174-2 V1.1.1:2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 9 ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental control together with the necessary levels of resilience and security required to provide the desired service availability Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for subsequent distribution by Network Telecommunications Equipment (NTE) Last Operators Connection point (LOC): interface to the fixed access transport networks of one or more operators from which cabling is routed to a customer network mobile access network: telecommunications network in which the access to the network (connection between user equipment and network) is implemented over the air interface Network Data Centre (NDC): data centre embedded within the core network NOTE: A network data centre of a cable access network may be termed a master head-end. Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing connection to, core and/or access networks Operator Site (OS): premises accommodating Network Telecommunications Equipment (NTE), providing direct connection to the core and access networks, and which may also accommodate Information Technology Equipment (ITE) NOTE 1: An operator site that is only connected to the core network is considered as a network data centre. NOTE 2: An operator site of a cable access network may be termed a local head-end. Terminal Equipment (TE): principal device within customer premises allowing user access to the services provided by the fixed access network User Equipment (UE): device allowing user access to the services provided by the mobile access network 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AC Alternating Current ATTM Access, Terminals, Transmission and Multiplexing BS Base Station CEN European Committee for Standardization CENELEC European Committee for Electrotechnical Standardization

CP Customer Premises CRAC Computer Room Air Conditioning CRAH Computer Room Air Handling EoL End-of-Life

EU European Union ICCG CENELEC/ETSI Installations and Cabling Co-ordination Group ICT Information Communications Technology IEC International Electrotechnical Committee ISO International Standards Organization IT Information Technology ITE Information Technology Equipment ITIL Information Technology Infrastructure Library KPI Key Performance Indicator LCA Life Cycle Analysis LOC Last Operators Connection point NDC Network Data Centre

NTE Network Telecommunications Equipment OS Operator Site PUE Power Usage Effectiveness SIST EN 305 174-2 V1.1.1:2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 10 TE Terminal Equipment TRX Transceiver Equipment UE User Equipment UPS Uninterruptible Power Supply 4 Broadband deployment and ICT sites 4.1 ICT sites 4.1.1 General Figure 1 is a technology-agnostic diagram depicting a segment of a broadband network showing the interconnection of ICT sites and customer premises installations for fixed access networks. In principle, every operator network can contain any number of each of these elements and may be connected to any number of other operator networks.

Figure 1: Network sub-systems of fixed broadband access network infrastructure Figure 2 is a technology-agnostic diagram depicting a segment of a broadband network showing the interconnection of ICT sites and base stations (BS) for mobile access networks. Each BS may provide services to a variable number of "end-use IT equipment" shown as User Equipment (UE) in Figure 2. In principle, every operator network can contain any number of each of these elements and may be connected to any number of other operator networks. Broadband provision is an enabling technology capable of supporting a reduction of global energy consumption. EXAMPLE: By providing facilities such as home working and video conferencing to reduce travel demands. For this reason, it may not be the case that the total energy consumption of broadband networks will be reduced, though the application of effective energy efficiency measures will minimize any increases due to predicted service evolution. Core network 1OS2NDC1NDC1NDC1Core network 2CPCPCPCPCPCPOS2OS2OS2OS2OS2Customer premises connected to two operator sitesfor resilienceCustomer premisesconnected to twooperator networksAccess network 1Access network 21 For cable access networks this is termed “Master head-end/OS”2 For cable access networks this is termed “Local head-end/OS”SIST EN 305 174-2 V1.1.1:2018

ETSI ETSI EN 305 174-2 V1.1.1 (2018-02) 11 The scale of reductions in energy consumption and/or improvements of energy efficiency is: • dependent on the network sub-systems; • generally greater at the design stage rather than following improvements to existing infrastructures.

Figure 2: Network sub-systems of mobile broadband access network infrastructure ICT sites comprise Operator Sites (OS) as described in clause 4.1.2 and Network Data Centres (NDC) as described in clause 4.1.3. The present document addresses OS and NDC and does not differentiate between them. It should be noted that an OS that is only connected to the core network is considered to be an NDC. The potential reductions in energy consumption and/or improvements of energy efficiency in ICT sites as described in clauses 4.1.2 and 4.1.3 are expected to be substantial but apply in only a relatively small number of locations and may prove vital where availability of power is restricted. These clearly defined premises are provided with appropriate Key Performance Indicators (KPIs) to determine relative performance levels in terms of energy efficiency. Within customer premises, it is generally the customer rather than the operator who funds the energy costs. Potential reductions in energy consumption may well be identifiable in design terms but they are generally not individually quantifiable due to the diversity of customer networks. 4.1.2 Operator Site (OS) NOTE: This is equivalent to the master head-end for a cable access network. With reference to Figure 1 and Figure 2, an OS is the network sub-system in the core network that enables the connectivity between network data centres and customer premises over which the required services can be delivered, using the access network. An OS also enables indirect connectivity between customer premises. An OS will almost invariably each serve many thousands of customer connections. Each customer connection may be comprised of multiple communication paths and serve a variety of applications. 4.1.3 Network Data Centre (NDC) NOTE 1: This is equivalent to the local head-end for a cable access network. With reference to Figure 1 and Figure 2, an NDC is a network sub-system serving the core network of one or more operators. Its functions include the storage, processing and dissemination of data as required to fulfil customer expectations