This document specifies protocols, procedures, and managed objects used to ensure that the synchronization requirements are met for time-sensitive applications, such as audio, video, and time-sensitive control, across networks, for example, IEEE 802 and similar media. This includes the maintenance of synchronized time during normal operation and following addition, removal, or failure of network components and network reconfiguration. It specifies the use of IEEE 1588™ specifications where applicable in the context of IEEE Std 802.1Q™-2018.1 Synchronization to an externally provided timing signal [e.g., a recognized timing standard such as Coordinated Universal Time (UTC) or International Atomic Time (TAI)] is not part of this standard but is not precluded.

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  • Standard
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This part of IEC 62056 describes two sets of profiles: the first set of profiles allows a
bidirectional communication between a client and a server. This set of profiles is made of three
profiles allowing local bus data exchange with stations either energized or not. For nonenergized
stations, the bus supplies energy for data exchange. Three different profiles are
supported:
• base profile: this three-layer profile provides remote communication services;
NOTE 1 This first profile was published in IEC 61142:1993 and became known as the Euridis standard.
• profile with DLMS: this profile allows using DLMS services as specified in IEC 61334-4-41;
NOTE 2 This second profile was published in IEC 62056-31:1999.
• profile with DLMS/COSEM: this profile allows using the DLMS/COSEM Application layer and
the COSEM object model as specified in IEC 62056-5-3 and in IEC 62056-6-2 respectively.
The three profiles use the same physical layer and they are fully compatible, meaning that
devices implementing any of these profiles can be operated on the same bus. The transmission
medium is twisted pair using carrier signalling and it is known as the Euridis Bus.
The second set of profiles allows unidirectional communication between a given Energy
Metering device and a Customer Energy Management System. This second set is made up of
three profiles.
Subclause 4.2.1 to Clause 8 included specify the bidirectional communication using twisted pair
signalling and Clause 9 to 9.5 the unidirectional communication using twisted pair signalling.

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This Technical Report contains a set of recommended practices for improving the energy management (i.e. reduction of energy consumption and/or increases in energy efficiency) of data centres. It supports participants of the EU Code of Conduct for data centres to fulfil the scheme’s requirements

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This Technical Report provides recommended practices to implement and assess environmental sustainability in data centres, e.g. by means of Life Cycle Assessment (LCA).

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This document provides the basic concepts for IoT systems semantic interoperability, as described in the facet model of ISO/IEC 21823-1, including: – requirements of the core ontologies for semantic interoperability; – best practices and guidance on how to use ontologies and to develop domain-specific applications, including the need to allow for extensibility and connection to external ontologies; – cross-domain specification and formalization of ontologies to provide harmonized utilization of existing ontologies; – relevant IoT ontologies along with comparative study of the characteristics and approaches in terms of modularity, extensibility, reusability, scalability, interoperability with upper ontologies, and so on, and; – use cases and service scenarios that exhibit necessities and requirements of semantic interoperability.

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ISO/IEC 21823-3:2021 provides the basic concepts for IoT systems semantic interoperability, as described in the facet model of ISO/IEC 21823-1, including:
– requirements of the core ontologies for semantic interoperability;
– best practices and guidance on how to use ontologies and to develop domain-specific applications, including the need to allow for extensibility and connection to external ontologies;
– cross-domain specification and formalization of ontologies to provide harmonized utilization of existing ontologies;
– relevant IoT ontologies along with comparative study of the characteristics and approaches in terms of modularity, extensibility, reusability, scalability, interoperability with upper ontologies, and so on, and;
– use cases and service scenarios that exhibit necessities and requirements of semantic interoperability.

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The present document specifies technical characteristics and methods of measurements for radio equipment with
integral antennas operating indoor or outdoor at data rates of multiple-gigabit per second in the 60 GHz frequency
range.
These radio equipment operate with very wideband communications using a variety of directional medium and high
gain antennas to enable a high degree of spectrum reuse, and may use a flexible bandwidth scheme under which they
normally operate in a wideband mode, and periodically reduce their bandwidth (e.g. for antenna training and other
activities).
The technical characteristics of applications using these radio equipment are further described in ETSI TR 102 555 [i.1].
Equipment in this frequency range intended for outdoor Fixed Local Area Network Extension (FLANE) or Fixed
Point-to-Point applications are not in the scope of the present document.
These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1.

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IEC 62056-3-1:2021 is available as IEC 62056-3-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62056-3-1:2021 describes two sets of profiles: the first set of profiles allows a bidirectional communication between a client and a server. This set of profiles is made of three profiles allowing local bus data exchange with stations either energized or not. For non-energized stations, the bus supplies energy for data exchange. Three different profiles are supported:
• base profile: this three-layer profile provides remote communication services;
NOTE 1 This first profile was published in IEC 61142:1993 and became known as the Euridis standard.
• profile with DLMS: this profile allows using DLMS services as specified in IEC 61334 4 41;
NOTE 2 This second profile was published in IEC 62056-31:1999.
• profile with DLMS/COSEM: this profile allows using the DLMS/COSEM Application layer and the COSEM object model as specified in IEC 62056 5 3 and in IEC 62056 6 2 respectively.
The three profiles use the same physical layer and they are fully compatible, meaning that devices implementing any of these profiles can be operated on the same bus. The transmission medium is twisted pair using carrier signalling and it is known as the Euridis Bus.
The second set of profiles allows unidirectional communication between a given Energy Metering device and a Customer Energy Management System. This second set is made up of three profiles.
Subclause 4.2.1 to Clause 8 included specify the bidirectional communication using twisted pair signalling and Clause 9 to 9.5 the unidirectional communication using twisted pair signalling.
This second edition cancels and replaces the first edition of IEC 62056-3-1, issued in 2013, and constitutes a technical revision.
The main technical changes with regard to the previous edition are as follows:
• addition of a profile which makes use of the IEC 62056 DLMS/COSEM Application layer and COSEM object model;
• review of the data link layer which is split into two parts:
– a pure Data Link layer;
– a "Support Manager" entity managing the communication media;
• ability to negotiate the communication speed, bringing baud rate up to 9 600 bauds.

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This document addresses the construction of buildings and other structures which provide accommodation for data centres based upon the criteria and classification for “physical security” within EN 50600 1 in support of availability.
This document specifies requirements and recommendations for the following:
a)   location and site selection (taking in to account natural environment and adjacencies);
b)   protection from environmental risks;
c)   site configuration;
d)   building construction;
e)   building configuration;
f)   provision of access;
g)   intrusion protection;
h)   physical fire protection;
i)   protection against damage from water;
j)   quality construction measures.
Safety and electromagnetic compatibility (EMC) requirements are outside the scope of this document and are covered by other standards and regulations. However, information given in this document can be of assistance in meeting these standards and regulations.
Conformance of data centres to the present document is covered in Clause 4.

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This document provides requirements and recommendations for the type of risk assessment to be employed concerning seismic activity and earthquakes in relation to data centres. In addition, it describes design concepts that can be employed as mitigation actions within the construction, and other elements of design, of data centres.

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The present document defines power feeding solutions for 5G, converged wireless and wireline access equipment and
network, taking into consideration their enhanced requirements on service availability and reliability, the new
deployment scenarios, together with the environmental impact of the proposed solutions.
The minimum requirements of different solutions including power feeding structures, components, backup, safety
requirements, environmental conditions are also defined.
The present document is applicable to powering of both mobile and fixed access network elements, in particular on
equipment that have similar configurations and needs.
The future development of 5G networks will create a new scenario in which the density of radio cells will increase
considerably, together with the increase of wireline network equipment that are going to be installed in the vicinity to
the users, thereby creating the need to define new solutions for powering that will be environmentally friendly,
sustainable, dependable, smart and visible remotely.
The -48 V DC, up to 400 V DC local and remote power solutions defined respectively in ETSI EN 300 132-2 [2],
ETSI EN 302 099 [i.10] and ETSI EN 300 132-3-1 [3] or Recommendation ITU-T L.1200 [i.13] will be considered as
the standards in force for power facilities, together with IEEE 802.3TM [i.18] (PoE).

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This document defines Ethernet local area, access and metropolitan area networks. Ethernet is specified at selected speeds of operation; and uses a common media access control (MAC) specification and management information base (MIB). The Carrier Sense Multiple Access with Collision Detection (CSMA/CD) MAC protocol specifies shared medium (half duplex) operation, as well as full duplex operation. Speed specific Media Independent Interfaces (MIIs) provide an architectural and optional implementation interface to selected Physical Layer entities (PHY). The Physical Layer encodes frames for transmission and decodes received frames with the modulation specified for the speed of operation, transmission medium and supported link length. Other specified capabilities include: control and management protocols, and the provision of power over selected twisted pair PHY types.

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ISO/IEC 30144:2020 (E) specifies intelligent wireless sensor network (iWSN) from the perspectives of iWSN's system infrastructure and communications internal and external to the infrastructure, and technical requirements for iWSN to realize smart electrical power substations.

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This document is a compilation of recommended Practices for improving the energy management (i.e. reduction of energy consumption and/or increases in energy efficiency) of data centres. It is historically aligned with the EU Code of Conduct for Data Centre Energy Efficiency (CoC) scheme operated by the Directorate-General Joint Research Centre (DG JRC) of the European Commission (EC).
It is recognized that the Practices included might not be universally applicable to all scales and business models of data centres or be undertaken by all parties involved in data centre operation, ownership or use.

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This document specifies Bridges that interconnect individual LANs, each supporting the IEEE 802 MAC Service using a different or identical media access control method, to provide Bridged Networks and VLANs.

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This document specifies provision of connectionless user data confidentiality, frame data integrity, and data origin authenticity by media access independent protocols and entities that operate transparently to MAC Clients. NOTE—The MAC Clients are as specified in IEEE Std 802®, IEEE Std 802.1Q?, and IEEE Std 802.1X.2 To this end, it a) Specifies the requirements to be satisfied by equipment claiming conformance to this standard. b) Specifies the requirements for MACsec in terms of provision of the MAC Service and the preservation of the semantics and parameters of service requests and indications. c) Describes the threats, both intentional and accidental, to correct provision of the service. d) Specifies security services that prevent, or restrict, the effect of attacks that exploit these threats. e) Examines the potential impact of both the threats and the use of MACsec on the Quality of Service (QoS), specifying constraints on the design and operation of MAC Security entities and protocols. f) Models support of the secure MAC Service in terms of the operation of media access control method independent MAC Security Entities (SecYs) within the MAC Sublayer. g) Specifies the format of the MACsec Protocol Data Unit (MPDUs) used to provide secure service. h) Identifies the functions to be performed by each SecY, and provides an architectural model of its internal operation in terms of Processes and Entities that provide those functions. i) Specifies each SecY's use of an associated and collocated Port Access Entity (PAE, IEEE Std 802.1X) to discover and authenticate MACsec protocol peers and its use of that PAE's Key Agreement Entity (KaY) to agree and update cryptographic keys. j) Specifies performance requirements and recommends default values and applicable ranges for the operational parameters of a SecY. k) Specifies how SecYs are incorporated within the architecture of end stations, bridges, and two-port Ethernet Data Encryption devices (EDEs). l) Establishes the requirements for management of MAC Security, identifying the managed objects and defining the management operations for SecYs. m) Specifies the Management Information Base (MIB) module for managing the operation of MAC Security in TCP/IP networks. n) Specifies requirements, criteria, and choices of Cipher Suites for use with this standard.

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This European Standard specifies requirements for the following aspects of information technology cabling:
a)   installation specification, quality assurance documentation and procedures;
b)   documentation and administration;
c)   operation and maintenance.
This European Standard is applicable to all types of information technology cabling including generic cabling systems designed in accordance with the EN 50173 series.

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This EN specifies the so-called Energy Reuse Factor (ERF) as a KPI to quantify the reuse of the energy consumed in the data centre. The ERF does reflect the efficiency of the reuse process, however, the reuse process is not part of the data centre.

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ISO/IEC 30142:2020 provides the overview and requirements of a network management system in underwater acoustic sensor network (UWASN) environment. It specifies the following: – functions which support underwater network management system; – entities required for underwater network management system; – data about the communication between elements in underwater network management system; – guidelines to model the underwater network management system; – general and functional requirements of underwater network management system

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ISO/IEC 30143:2020 provides the guidelines for designing and developing new applications in the underwater environment such as fish farming, environment monitoring, harbour security, etc. This document also: • provides the components required for developing the application; • provides instructions for modelling the application with examples; • helps the user to understand the communication between the elements in the application for modelling the communication between elements; • guides the user with the design process of underwater applications.

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ISO/IEC 30142:2020 provides the overview and requirements of a network management system in underwater acoustic sensor network (UWASN) environment. It specifies the following:
– functions which support underwater network management system;
– entities required for underwater network management system;
– data about the communication between elements in underwater network management system;
– guidelines to model the underwater network management system;
– general and functional requirements of underwater network management system

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ISO/IEC 30143:2020 provides the guidelines for designing and developing new applications in the underwater environment such as fish farming, environment monitoring, harbour security, etc. This document also:
• provides the components required for developing the application;
• provides instructions for modelling the application with examples;
• helps the user to understand the communication between the elements in the application for modelling the communication between elements;
• guides the user with the design process of underwater applications.

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This EN specifies the so-called Cooling Efficiency Ratio (CER), which is a key performance indicator for data centres, that indicates the effectiveness of a cooling system in a data centre.

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IEC 62056-8-8:2020 describes how the DLMS/COSEM Application layer and the COSEM object model, as specified in IEC 62056‑5‑3:2017, IEC 62056‑6‑1:2017 and IEC 62056‑6‑2:2017, can be used over the lower layers specified in the IEC 14908 series, forming a DLMS/COSEM ISO/IEC 14908 communication profile. This document is part of the IEC 62056 series. Its structure follows IEC 62056-1-0 and IEC TS 62056-1-1.

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IEC 21823-2:2020 (E) specifies a framework and requirements for transport interoperability, in order to enable the construction of IoT systems with information exchange, peer-to-peer connectivity and seamless communication both between different IoT systems and also among entities within an IoT system. This document specifies:
• transport interoperability interfaces and requirements between IoT systems;
• transport interoperability interfaces and requirements within an IoT system

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This document specifies the Cooling Efficiency Ratio (CER) as a Key Performance Indicator (KPI) to quantify the efficient use of energy to control the temperature of the spaces within the data centre. This document: a) defines the Cooling Efficiency Ratio (CER) of a data centre; b) describes the relationship of this KPI to a data centre’s infrastructure, information technology equipment and information technology operations; c) defines the measurement, the calculation and the reporting of the parameter; d) provides information on the correct interpretation of the CER. Annex A describes the correlation of CER and other KPIs. Annex B provides examples of the application of CER. Annex C introduces the parameters that affect CER. Annex D describes requirements and recommendations for derivatives of KPIs associated with CER.

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This document addresses the mitigation and protection of telecommunications cabling from electromagnetic interference by describing:
a)   coupling mechanisms and possible countermeasures;
b)   assessment of the electromagnetic environment;
c)   filtering, isolation and surge protections measures.
Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC) requirements are outside the scope of this document and are covered by standards and regulations. However, information given in this document can be of assistance in meeting these standards and regulations.

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This Technical Report describes the following:
a)   the functional elements and structure of the cabling, external to homes, supporting community antenna television (CATV) and master antenna television/satellite master antenna television (MATV/SMATV) networks in accordance with EN 60728-1;
b)   the location and accommodation of the home network interface (HNI) in accordance with EN 60728-1;
c)   requirements for additional cabling performance requirements (i.e. insertion loss slope between 47 MHz and 862 MHz) and necessary amendments of the reference implementations of generic cabling within the home in accordance with EN 50173-4 in order to support the CATV, MATV/SMATV networks in accordance with EN 60728-1

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This document addresses the mitigation and protection of telecommunications cabling from electromagnetic interference by describing: a) coupling mechanisms and possible countermeasures; b) assessment of the electromagnetic environment; c) filtering, isolation and surge protections measures. Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC) requirements are outside the scope of this document and are covered by standards and regulations. However, information given in this document can be of assistance in meeting these standards and regulations.

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This document describes the following: a) the functional elements and structure of the cabling, external to homes, supporting community antenna television (CATV) and master antenna television/satellite master antenna television (MATV/SMATV) networks in accordance with EN 60728 1; b) the location and accommodation of the home network interface (HNI) in accordance with EN 60728 1; c) requirements for additional cabling performance requirements (i.e. insertion loss slope between 47 MHz and 862 MHz) and necessary amendments of the reference implementations of generic cabling within the home in accordance with EN 50173 4 in order to support the CATV, MATV/SMATV networks in accordance with EN 60728 1. Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC) requirements are outside the scope of this document and are covered by standards and regulations. However, information given in this document could be of assistance in meeting these standards and regulations.

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This standard specifies unique per-device identifiers (DevID) and the management and cryptographic binding of a device to its identifiers, the relationship between an initially installed identity and subsequent locally significant identities, and interfaces and methods for use of DevIDs with existing and new provisioning and authentication protocols.

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This part of the IEC 62443 series provides detailed technical control system requirements (SRs) associated with the seven foundational requirements (FRs) described in IEC 62443‑1‑1 including defining the requirements for control system capability security levels, SL-C(control system). These requirements would be used by various members of the industrial automation and control system (IACS) community along with the defined zones and conduits for the system under consideration (SuC) while developing the appropriate control system target SL, SL-T(control system), for a specific asset.
As defined in IEC 62443‑1‑1 there are a total of seven FRs:
a) Identification and authentication control (IAC),
b) Use control (UC),
c) System integrity (SI),
d) Data confidentiality (DC),
e) Restricted data flow (RDF),
f) Timely response to events (TRE), and
g) Resource availability (RA).
These seven requirements are the foundation for control system capability SLs, SL-C (control system). Defining security capability at the control system level is the goal and objective of this standard as opposed to target SLs, SL-T, or achieved SLs, SL-A, which are out of scope.
See IEC 62443‑2‑1 for an equivalent set of non-technical, program-related, capability SRs necessary for fully achieving a control system target SL.

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This document describes ? the structure of wireless gas meter networks, and ? the application protocol of wireless gas meter networks.

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