Information technology - CENELEC/ETSI Glossary of terms and definitions for broadband deployment including sustainability aspects

This Technical Report contains a list of terms and definitions to be used in standardization deliverables in the field of broadband deployment. These terms and definitions are taken from both published and draft deliverables that were/are being developed by CLC/TC 215 and ETSI/TC ATTM, respectively. NOTE   CLC/TC 215 and ETSI/TC ATTM intended to examine the harmonization of differing terms and definitions in the future.

Informationstechnik - CENELEC/ETSI-Wörterbuch von Begriffen für die Breitbandnutzung einschließlich Nachhaltigkeitsaspekte

Informacijska tehnologija - Slovar izrazov in definicij CENELEC/ETSI za širokopasovno uporabo, vključno s trajnostnimi vidiki

To tehnično poročilo vsebuje seznam izrazov in definicij, ki se uporabljajo v standardizacijskih izsledkih na področju širokopasovne uporabe. Ti izrazi in definicije izhajajo iz objavljenih izsledkov in njihovih osnutkov, ki so bili pripravljeni/se pripravljajo v okviru CLC/TC 215 in ETSI/TC ATTM.

General Information

Status
Published
Publication Date
20-Nov-2014
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Nov-2014
Due Date
17-Jan-2015
Completion Date
21-Nov-2014

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SLOVENSKI STANDARD
SIST-TP CLC/TR 50584:2014
01-december-2014
,QIRUPDFLMVNDWHKQRORJLMD6ORYDUL]UD]RYLQGHILQLFLM&(1(/(&(76,]D
ãLURNRSDVRYQRXSRUDERYNOMXþQRVWUDMQRVWQLPLYLGLNL
Information technology - CENELEC/ETSI Glossary of terms and definitions for
broadband deployment including sustainability aspects
Ta slovenski standard je istoveten z: CLC/TR 50584:2014
ICS:
01.040.35 Informacijska tehnologija. Information technology.
Pisarniški stroji (Slovarji) Office machines
(Vocabularies)
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
SIST-TP CLC/TR 50584:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CLC/TR 50584:2014

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SIST-TP CLC/TR 50584:2014


TECHNICAL REPORT CLC/TR 50584

RAPPORT TECHNIQUE

TECHNISCHER BERICHT
September 2014
ICS 01.040.35; 35.110

English Version
Information technology - CENELEC/ETSI Glossary of terms and
definitions for broadband deployment including sustainability
aspects
 Informationstechnik - CENELEC/ETSI-Wörterbuch von
Begriffen für die Breitbandnutzung einschließlich
Nachhaltigkeitsaspekte


This Technical Report was approved by CENELEC on 2014-09-01.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. CLC/TR 50584:2014 E

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CLC/TR 50584:2014 – 2 –

Contents Page
Foreword .3
Introduction .4
1 Scope .4
2 General .5
3 Terms and definitions for networks and service provision .6
3.1 Networks .6
3.2 Service provision .9
4 Terms and definitions for network topology and divisions . 11
5 Terms and definitions for cabling and related components . 16
6 Terms and definitions for sustainability . 18
7 Terms and definitions for transmission protocols and techniques. 19
8 Terms and definitions for equipment . 20
9 Glossary of abbreviations . 23
Bibliography . 25

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Foreword
This document (CLC/TR 50584:2014) has been prepared by CLC/TC 215 "Electrotechnical aspects of
telecommunication equipment" and ETSI/TC ATTM “Access, Terminals, Transmission and
Multiplexing”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.

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Introduction
This Technical Report has been prepared to support the harmonization of terminology used by
Technical Committees of CENELEC and ETSI, who are working in the field of Broadband Deployment,
to ensure that their deliverables use consistent terms and definitions. It will allow Technical
Committees to revise their existing publications to align the partly diverging terminology, which can
currently be found in some of those publications.
Technical Committees will benefit from a harmonized glossary of terms and definitions during the
development of future documents, in particular for cross-over topics affecting several Technical
Committees in CENELEC and/or ETSI. Furthermore, readers of those documents will appreciate an
advanced understanding of different deliverables addressing the same field of technology, as
discussions about the meaning of terms will be minimized.
An online version of this Technical Report can be found at the following URL:
http://uri.cenelec.eu/TRs/50584/2014/ed-01/CLCTR50584{2014}e.pdf

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1 Scope
This Technical Report contains a list of terms and definitions to be used in standardization
deliverables in the field of broadband deployment. These terms and definitions are taken from both
published and draft deliverables that were/are being developed by CLC/TC 215 and ETSI/TC ATTM,
respectively.
NOTE CLC/TC 215 and ETSI/TC ATTM intended to examine the harmonization of differing terms and
definitions in the future.
2 General
2.1.1
application
system, with its associated transmission method that is supported by telecommunications cabling
[SOURCE: EN 50173-1:2011, 3.1.5]
2.1.2
application
system, with its associated transmission method that is supported by telecommunications cabling (this
corresponds to a Layer One application in the OSI 7-layer model)
[SOURCE: ETSI/TR 105 174-5-1 V1.1.1 (2009-10), 3.1; ETSI/TR 105 174-5-2 V1.1.1 (2009-10), 3.1]
2.2.1
broadcast and communication technologies
group of applications using the HF band (3 MHz to 30 MHz), the VHF band (30 MHz to 300 MHz) and
the UHF band (300 MHz to 3 000 MHz) for transmission of sound radio, TV and two-way data
services, as well as for in-home inter-networking
[SOURCE: EN 50173-1:2011, 3.1.14]
2.2.2
Broadcast Communication Technology (BCT) application
system, with its associated transmission method using the HF band (3 MHz to 30 MHz), the VHF band
(30 MHz to 300 MHz) and the UHF band (300 MHz to 3 000 MHz) dedicated to the transmission of
sound radio, TV and two-way data services, as well as for in-home inter-networking
NOTE: See EN 50173-1 [i.2] modified.
[SOURCE: ETSI/TR 105 174-5-1 V1.1.1 (2009-10), 3.1; ETSI/TR 105 174-5-2 V1.1.1 (2009-10), 3.1]
2.3
Industrial, Scientific and Medical (ISM) band
band of radio frequencies allocated for use for industrial, scientific and medical purposes
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
2.4.1
information and communication technologies
group of applications using information and communications (telecommunications) technologies
[SOURCE: EN 50173-1:2011, 3.1.42]

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2.4.2
Information Communication Technology (ICT) applications
system, with its associated transmission method for the communication of information
NOTE: See EN 50173-1 [i.2] modified.
[SOURCE: ETSI/TR 105 174-5-1 V1.1.1 (2009-10), 3.1; ETSI/TR 105 174-5-2 V1.1.1 (2009-10), 3.1]
3 Terms and definitions for networks and service provision
3.1 Networks
3.1.1
community antenna television
system which is designed to provide sound and television signals received by terrestrial, satellite
antennas or provided by locally generated sources to the outlets of a large group of buildings
[SOURCE: CLC/TR 50173-99-2:2010, 3.1.4]
3.1.2
community network
communications network, usually wireless, established by and for a local community often to
compensate for lack of publicly available access to relevant facilities
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.3.1
core network
functional elements (that is equipment and infrastructure) that enable communication between
operator sites and/or network data centres
[SOURCE: EN 50174-3:2013, 3.1.7; ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]
3.1.3.2
core network
functional elements (equipment and infrastructure) that enable communication between operator sites
and/or network data centres
[SOURCE: EN 50700:2014, 3.1.6]
3.1.4
core infrastructure
core network
functional elements (that is equipment and infrastructure) that enable communication between
operator sites and/or operator data centres
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1; draft ETSI/ES 205 200-2-3:2014, 3.1]
3.1.5.1
customer network
functional elements (equipment and infrastructure) that enable communication between the subscriber
interface and one or more attached terminal equipment
[SOURCE: EN 50700:2014, 3.1.7]

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3.1.5.2
customer network
functional elements (that is equipment and infrastructure) that enable communication between an NTP
or ENTI, as appropriate, and one or more attached terminal equipments
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]
3.1.6
distribution access network
sub-part of the access network comprising the functional elements that enable communication
between the last operator connection point and the subscriber interface
[SOURCE: EN 50700:2014, 3.1.9]
3.1.7
distribution infrastructure
sub-part of the access network comprising the functional elements that enable communication
between the last cabinet and a customer network
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]
3.1.8
enterprise network
network established by a large company or similar enterprise to serve its internal telecommunications
needs with connectivity to one or more public networks
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.9
fibre to the cabinet
optical fibre distribution network providing connectivity from the network operator's site to a shared
distribution node close to the end-user's premises
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.10
fixed access network
functional elements that enable wired (including optical fibre) communications to customer equipment
[SOURCE: ETSI/ES 205 200-1 V1.2.1(2014-03), 3.1]
3.1.11
intrusion detection system
mechanism by which any attempt by an unauthorized user or terminal to gain access to a
communications network is detected
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.12
meshed network
communications network, usually wireless, in which every node has connectivity with a number of
other nodes thus enabling a variety of possible communication paths between nodes
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.13
network convergence
ability of a network, by virtue of the applications it supports, to deliver multiple ICT, BCT and CCCB
services
[SOURCE: ETSI/TR 105 174-5-1 V1.1.1 (2009-10), 3.1]

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3.1.14
network gateway
device which will enable the interconnecting of two networks which inherently use different and
incompatible protocols
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.15
other network group
mobile access network serving a specific area
NOTE: This area is not urban or rural network group.
[SOURCE: Draft ETSI ES 205 200-2-3:2014]
3.1.16
point-to-multi-point
communications link operating between a network operator's site and a number of other locations
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.17
point-to-point
communications link operating between two, usually fixed, locations
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.1.18
premises distribution access network
sub-part of the access network within multi-subscriber premises comprising the functional elements
that enable communication between the access demarcation point and the subscriber interface
[SOURCE: EN 50700:2014, 3.1.17]
3.1.19
rural network group
2
mobile access network serving an area with an average population density of 20 inhabitants/km to 50
2
inhabitants/km
NOTE: This includes villages of up to 50 000 inhabitants.
[SOURCE: Draft ETSI ES 205 200-2-3:2014, 3.1]
3.1.20
transport access network
sub-part of the access network comprising the functional elements that enable communication
between the core network and the last operator connection point
[SOURCE: EN 50700:2014, 3.1.12]
3.1.21
transport infrastructure
sub-part of the access network comprising the functional elements that enable communication
between the core network and the last cabinet and a customer network
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]

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3.1.22
urban network group
2
mobile access network serving an area with a population density of 4 000 inhabitants/km to 6 000
2
inhabitants/km
[SOURCE: Draft ETSI ES 205 200-2-3:2013]
3.2 Service provision
3.2.1.1
access provider
operator or another entity providing the means to enable external telecommunications service
provision to a subscriber
[SOURCE: EN 50700:2014, 3.1.3; EN 50174-3:2013, 3.1.2; EN 50174-2:2009/A2:2014, 3.1.1]
3.2.1.2
access provider
operator of any facility that is used to convey telecommunications signals to and from a customer
premises
[SOURCE: EN 50600-2-1:2014, 3.1.2; CLC/TR 50173-99-3:2012, 3.1.2]
3.2.2
building operator
operator who installs and is responsible for the maintenance of the vertical and/or horizontal cabling in
the building and gives an access to it to the other operators
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09) 3.1]
3.2.3
customer
person or entity using a telecommunications service and who may or may not be the subscriber
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.2.4
external service provider
operator of any service that furnishes telecommunications content (transmissions) delivered over
access provider facilities
[SOURCE: CLC/TR 50173-99-3:2012, 3.1.7]
3.2.5
hotspot
location that offers publicly accessible internet access over a wireless connection
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
3.2.6
multi-building subscriber
subscriber accommodated in more than one building within the premises
[SOURCE: EN 50700:2014, 3.1.13]
3.2.7
multi-subscriber premises
premises which are designed to accommodate more than one subscriber
[SOURCE: EN 50700:2014, 3.1.14]

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3.2.8
non-simultaneous application provision
use of a multi-pair balanced cabling permanent link to provide two or more applications but not at the
same time
[SOURCE: CLC/TR 50173-99-3:2012, 3.1.9]
3.2.9
operational infrastructure
combination of information technology equipment (ITE) and/or network telecommunications equipment
(NTE) together with the power supply and environmental control systems necessary to ensure
provision of service
[SOURCE: ETSI/ES 205 200-1 V1.2.1 (2014-03), 3.1]
3.2.10
service
provision of a defined functionality in a computer systems or telecommunications environment
[SOURCE: ETSI/TR 105 174-4 V.1.1.1 (2009-10), 3.1]
3.2.11
service provider
operator of any service that furnishes telecommunications content (transmissions) delivered over
access provider facilities
Note 1 to entry: The access provider and the service provider can be a single entity.
[SOURCE: EN 50700:2014, 3.1.20]
3.2.12
simultaneous application provision
use of a multi-pair balanced cabling permanent link to provide two or more applications at the same
time
[SOURCE: CLC/TR 50173-99-3:2012, 3.1.11]
3.2.13
single-subscriber premises
premises which are designed to accommodate a single subscriber
[SOURCE: EN 50700:2014, 3.1.21]
3.2.14.1
subscriber
identifiable entity within the premises that may require a future direct connection to the access network
[SOURCE: EN 50700:2014, 3.1.22]
3.2.14.2
subscriber
person or entity responsible for paying for a telecommunications service
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]

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3.2.15
triple play (telecommunications)
provision of cable TV, telephony and broadband data as a combined service offering, possibly using a
single bearer medium
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
4 Terms and definitions for network topology and divisions
4.1
access demarcation point
location from which premises distribution access network cabling is routed to subscribers
[SOURCE: EN 50700:2014, 3.1.1]
4.2
access circuit
telecommunications circuit connecting the operator site to the subscriber's premises
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
4.3.1
access network
functional elements (equipment and infrastructure) that enable communication between the core
network and a customer network
[SOURCE: EN 50174-3:2013, 3.1.1]
4.3.2
access network
functional elements (that is equipment and infrastructure) that enable communication between the
core network and a customer network
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]
4.4
building entrance facility
facility that provides all necessary mechanical and electrical services for the entry of
telecommunications cables into a building and which may allow for transition from external to internal
cable
[SOURCE: EN 50173-1:2011, 3.1.17; EN 50174-1:2009/A1:2011, 3.1.3; EN 50700:2014, 3.1.4]
4.5
building network interface
interface between external network and the building network within a multi-dwelling building for the
network for the transmission of television signal, sound signals and interactive services
Note 1 to entry: This point is also called “transfer point” or “external network interface”.
[SOURCE: CLC/TR 50173-99-2:2010, 3.1.3]
4.6
customer outlet
allows the connection of fibre(s) from a cable to the ONT
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1]

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4.7
data centre
structure, or group of structures, dedicated to the centralized accommodation, interconnection and
operation of information technology and network telecommunications equipment providing data
storage, processing and transport services 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
Note 1 to entry: A structure can consist of multiple buildings and/or spaces with specific functions to support the
primary function.
[SOURCE: EN 50600-1:2012, 3.1.9; ETSI/ES 205 200-1 V1.2.1 (2014-03), 3.1 – ETSI ES comes
without Note 1 to entry]
4.7.1
co-hosting data centre
data centre in which multiple customers are provided with access to network(s), servers and storage
equipment on which they operate their own services/applications
Note 1 to entry: Both the information technology equipment and the support infrastructure of the building are
provided as a service by the data centre operator.
[SOURCE: EN 50600-1:2012, 3.1.5; EN 50174-2:2009/A1:2011, 3.1.2]
4.7.2
co-location data centre
data centre in which multiple customers locate their own network(s), servers and storage equipment
Note 1 to entry: The support infrastructure of the building (such as power distribution and environmental control)
is provided as a service by the data centre operator.
[SOURCE: EN 50600-1:2012, 3.1.6; EN 50174-2:2009/A1:2011, 3.1.3]
4.7.3
customer data centre
data centre connected to the access network
[SOURCE: ETSI/ES 205 200-1 V1.2.1 (2014-03), 3.1]
4.7.4
enterprise data centre
data centre that is operated by an enterprise which has the sole purpose of the delivery and
management of services to its employees and customers
[SOURCE: EN 50600-1:2012, 3.1.14; EN 50174-2:2009/A1:2011, 3.1.8]
4.7.5
network operator data centre
data centre that has the primary purpose of the delivery and management of broadband services to
the operators customers
[SOURCE: EN 50600-1:2012, 3.1.24; EN 50174-2:2009/A1:2011, 3.1.21]
4.7.6
operator data centre
ODC
data centre embedded within the core network
[SOURCE: ETSI ES 205 200-1 V1.2.1 (2014-03), 3.1]

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4.8
distribution point
point that allows the connection of the outdoor cable (feeder and/or drop) to the indoor (in-house or
building) cable
NOTE: The type of connection may be a fusion splice or other optical connection.
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1]
4.9
distribution space
space in the customer premise enclosing physical telecommunication interfaces, normally lockable
[SOURCE: ETSI/TS 102 873 V1.1.1 (2010-10), 3.1]
4.10
distributor
term used for the functions of a collection of components (for example, patch panels, patch cords)
used to connect cables
[SOURCE: EN 50173-1:2011, 3.1.32]
4.10.1
building distributor
distributor in which the building backbone cable(s) terminate(s) and at which connections to the
campus backbone cable(s) may be made
[SOURCE: EN 50173-1:2011, 3.1.16]
4.10.2
campus distributor
distributor from which the campus backbone cabling emanates
[SOURCE: EN 50173-1:2011, 3.1.25]
4.10.3.1
floor distributor
distributor used to make connections between the building backbone cabling subsystem, cabling
subsystems specified in other standards in the EN 50173 series and active equipment
Note 1 to entry: See telecommunications room.
[SOURCE: EN 50173-1:2011, 3.1.38]
4.10.3.2
floor distributor
distributor which, if it exists, is situated on one floor and distributes fibres or indoor cables on one or
across the floor(s) to each customer/ individual apartments
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1]
4.10.4
home distributor
HD
distributor within a home where cables terminate
[SOURCE: EN 50173-4:2007, 3.1.8]

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4.10.5
secondary home distributor
SHD
optional distributor used to provide additional infrastructure flexibility and / or allocate transmission
equipment between the home distributor and coverage areas (e. g. for homes with multiple floors)
[SOURCE: EN 50173-4:2007, 3.1.12]
4.10.6
primary distributor
distributor in which the cable(s) from the access demarcation point is distributed onward to the
secondary distributor(s), if present, or the subscriber interface
[SOURCE: EN 50700:2014, 3.1.18]
4.10.7
secondary distributor
distributor in which the cable(s) from the primary distributor, or another secondary distributor, is (are)
distributed onward to other secondary distributor(s), if present, or the subscriber interface
[SOURCE: EN 50700:2014, 3.1.19]
4.11
external network interface
termination point providing external network demarcation
[SOURCE: EN 50173-1:2011, 3.1.37]
4.12.1
external network test interface
point in or near the customer premises accessible to the network operator for testing purposes
[SOURCE: EN 50700:2014, 3.1.11]
4.12.2
external network test interface
point in or near the customer premises (inside or outside the customer network) accessible to the
network operator for testing purposes
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-03), 3.1]
4.13
home network interface
interface for access to the network for transmission of television signal, sound signals and interactive
services inside a home (single dwelling)
[SOURCE: CLC/TR 50173-99-2:2010, 3.1.7]
4.14
optical External Network Testing Interface (ENTI)
physical point at which a subscriber is provided with access to an optical communications network
Note 1 to entry: This is actually the optical connector adapter in the customer outlet.
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1; ETSI/TS 102 873 V1.1.1 (2010-10), Clause 4]

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4.15
flexibility point
device in the access network where access circuits can be configured to their intended destination by
cross connecting metallic pairs
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-19), 3.1]
4.16
last operator connection point
interface to the transport access networks of one or more operators from which cabling is routed to the
access demarcation point (ADP) of the premises distribution access network cabling
[SOURCE: EN 50700:2014, 3.1.12]
4.17
mobile access network
functional elements that enable wireless communications to customer equipment
[SOURCE: ETSI/ES 205 200-1 V1.2.1 (2014-03), 3.1]
4.18
Network Termination Point
NTP
physical point(s) at which a subscriber is provided with access to the operator network (this may be
co-located with an external network test interface)
Note 1 to entry: The schematic of Figure 1 [in ETSI/TS 105 174-1 V1.2.1 (2014-09)] helps understand many of
the definitions related with relevant points and areas of the installation.
[SOURCE: ETSI/TS 105 174-1 V1.2.1 (2014-09), 3.1]
4.19
operator access point
optional functional element of the premises distribution access network which allows a service
provider to install an external network test interface between the subscriber interface and the access
demarcation point
[SOURCE: EN 50700:2014, 3.1.15]
4.20
operator site
premises accommodating network telecommunications equipment providing direct connection to the
core and access networks and which may also accommodate information technology equipment
[SOURCE: EN 50700:2014, 3.1.16 ; ETSI/TR 105 174-2-1 V1.1.1 (2009-10)]
4.21
sub-loop
secondary access circuit from a street cabinet or similar access node used to deliver one or more
services to a customer
[SOURCE: ETSI/TR 105 174-4 V1.1.1 (2009-10), 3.1]
4.22
subscribers entrance facility
facility that provides all necessary mechanical and electrical services for the entry of cables into a
subscribers space
[SOURCE: EN 50700:2014, 3.1.23]

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4.23
subscriber interface
point where the customer premises equipment is connected to the premises distribution access
network cabling
[SOURCE: EN 50700:2014, 3.1.24]
5 Terms and definitions for cabling and related components
5.1
building optical line
optical line between the distribution point at the building basement and the customer outlet
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1]
5.2.1
cable element
smallest construction unit in a cable
Note 1 to entry: A cable element may have a screen.
Note 2 to entry: A pair, a quad, a single isolated lead with coaxial screen and a single optical fibre are examples
of a cable element.
[SOURCE: EN 50173-1:2011, 3.1.20]
5.2.2
cable element
cable subassembly comprising one or more optical fibres inside a common covering
EXAMPLE Tube.
[SOURCE: ETSI/TS 102 873 V1.1.1 (2010-10), 3.1]
5.3
cable unit
single assembly of one or more cable elements usually of the same type or Category
Note 1 to entry: A cable unit may have a screen.
[SOURCE: EN 50173-1:2011, 3.1.21]
5.4
cabling
system of telecommunications cables, cords and connecting hardware that supports the operation of
information technology equipment
[SOURCE: EN 50173-1:2011, 3.1.22]
5.5
campus backbone cable
cable that connects the campus distributor to the building distributor(s)
Note 1 to entry: Campus backbone cables may also interconnect building distributors.
[SOURCE: EN 50173-1:2011, 3.1.24]

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5.6
connector set
complete set of connector components required to provide demountable coupling between one or
more pairs of optical fibres
[SOURCE: ETSI ES 200 671 V1.2.1 (2000-08), 3.1]
5.7
dedicated fibre
fibre dedicated for only one operator, which is available permanently for this operator
Note 1 to entry: The fibre may be part of an indoor cable or of a blowing-based microducts.
[SOURCE: ETSI/TS 101 573 V1.1.1 (2012-09), 3.1]
5.8
drop cable
individual cable which links up the distribution point to the optical external network testing interface
(ENTI)
Note 1 to entry: This cable can be composed by one or more fibres.
[SOU
...

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