SIST EN 50173-6:2018/oprA1:2026

• Abstract:

  This standard specifies generic cabling for distributed building services and can be used in conjunction with all the space-specific standards of the EN 50173 series.; It covers balanced cabling and optical fibre cabling.; This standard specifies directly or via reference to EN 50173 1 the:; — structure and minimum configuration for generic cabling for distributed building services;; — interfaces at the service outlet (SO);; — performance requirements for cabling links and channels;; — implementation requirements and options;; — performance requirements for cabling components;; — conformance requirements and verification procedures.

• Status: Not Published
• Public Enquiry End Date: 29-Oct-2026
• ICS: 33.040.50 - Lines, connections and circuits
• ICS: 35.110 - Networking
• Technical Committee: ELI - Electrical and communication installations
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 14-Aug-2026
• Due Date: 01-Jan-2027
• Ref Project: EN 50173-6:2018/prA1:2026 - Information technology - Generic cabling systems - Part 6: Distributed building services

• Amends: SIST EN 50173-6:2018 - Information technology - Generic cabling systems - Part 6: Distributed building services
• Effective Date: 23-Dec-2025

Overview

SIST EN 50173-6:2018/oprA1:2026 is a European standard developed by the CLC/TC 215 for information technology and generic cabling systems, specifically focusing on distributed building services. This standard outlines requirements for the design, implementation, and verification of both balanced cabling and optical fibre cabling. It supports integration with the entire EN 50173 series, ensuring compatibility and scalability for various building environments. By offering guidelines for structure, minimum configuration, interfaces, performance, and verification, the standard enables robust, future-ready cabling infrastructure that supports a wide range of distributed building services.

Key Topics

• Generic Cabling Structure: Specifies the structure and minimum configuration for cabling networks in distributed building services, allowing flexible support for active equipment and diverse applications.
• Balanced and Optical Fibre Cabling: Covers the performance criteria and requirements for both balanced (e.g., twisted-pair) and optical fibre cabling types, ensuring high-quality signal transmission and scalability.
• Service Outlets and Interfaces: Defines standards for service outlets (SO), service distribution (SD), and equipment connections, crucial for seamless integration of devices and building systems.
• Performance and Compliance: Details transmission performance specifications for links and channels, ensuring compatibility with applications listed in EN 50173-1 and EN 50173-10, including single pair cabling.
• Implementation and Verification: Provides guidelines and options for implementation, as well as conformity assessment and verification procedures to guarantee reliable installation and long-term performance.
• Single Pair Cabling Extensions: Introduces capability for single pair cabling extension, referencing EN 50173-10 for enhanced support of emerging low bandwidth and IoT applications.

Applications

This standard is practically valuable for a range of distributed building services, including but not limited to:

• Building Automation: Facilitates the robust deployment of systems such as heating, ventilation, air conditioning (HVAC), access control, and lighting control.
• IoT Integration: Supports single pair cabling applications-ideal for Internet of Things (IoT) device connectivity and low-power distribution systems.
• Future-Ready Infrastructure: Ensures that cabling systems can be extended or upgraded as new types of telecommunications and digital services are introduced.
• Efficient Facility Management: Enables central and distributed management of networking, security, and monitoring systems for modern smart buildings.
• High-Speed Data Services: Ensures pathways for high-speed networking and communication infrastructures that support convergence of voice, data, and building management services.

Related Standards

EN 50173-6 is part of the broader EN 50173 series, which addresses various aspects of generic cabling for different environments. Related and referenced standards include:

• EN 50173-1: General requirements and definitions for generic cabling systems.
• EN 50173-10: Specific focus on single pair cabling, increasingly important for IoT and energy-efficient building solutions.
• EN 50173-2, EN 50173-3, EN 50173-4, EN 50173-5: Space-specific standards for office, industrial, home, and data center environments.
• EN 50174 Series: Covers installation, planning, and operational phases, ensuring seamless implementation from design to everyday use.
• EN 50310: Pertains to the application of equipotential bonding in buildings, relevant for grounding and interference control.

The alignment with these related standards ensures that cabling for distributed building services is interoperable, reliable, and compliant with European requirements for information technology infrastructure.

Keywords: EN 50173-6, distributed building services, generic cabling, structured cabling systems, balanced cabling, optical fibre cabling, single pair cabling, building automation, IoT, CLC standards, information technology cabling.

SLOVENSKI STANDARD
01-oktober-2026
Informacijska tehnologija - Generični kabelski sistemi - 6. del: Porazdeljene
storitve v stavbah - Dopolnilo A1
Information technology - Generic cabling systems - Part 6: Distributed building services
Informationstechnik - Anwendungsneutrale Kommunikationskabelanlagen - Teil 6:
Verteilte Gebäudedienste
Technologies de l’information - Systèmes de câblage générique - Partie 6 : Services
distribués dans les bâtiments
Ta slovenski standard je istoveten z: EN 50173-6:2018/prA1:2026
ICS:
33.040.50 Vodi, zveze in tokokrogi Lines, connections and
circuits
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
EN 50173-6:2018
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
August 2026
ICS 35.110 -
English Version
Information technology - Generic cabling systems - Part 6:
Distributed building services
Technologies de l'information - Systèmes de câblage Informationstechnik - Anwendungsneutrale
générique - Partie 6 : Services distribués dans les Kommunikationskabelanlagen - Teil 6: Verteilte
bâtiments Gebäudedienste
This draft amendment prA1, if approved, will modify the European Standard EN 50173-6:2018; it is submitted to CENELEC members for
enquiry.
Deadline for CENELEC: 2026-10-30.

It has been drawn up by CLC/TC 215.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

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

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 83174 Ref. No. EN 50173-6:2018/prA1:2026 E

Contents Page
1 European foreword . 3
2 1 Modifications to the European foreword . 4
3 2 Modifications to the Introduction . 4
4 3 Modifications to Clause 2, “Normative references” . 5
5 4 Modifications to Clause 4, “Structure of the generic cabling for distributed building
6 services” . 5
7 5 Modifications to Clause 5, “Requirement of channels for distributed building services” . 7
8 6 Modifications to 6.2.3, “Service distribution cabling (Type B generic cabling)” . 7
9 7 Modifications to 7.2, “ Balanced cables of Category 6 , 7, 7 , 8.1 and 8.2” . 8
A A
10 8 Modifications to 8.2.1, “General requirements “ . 8
11 9 Modifications to 9.2, “Balanced cords of Category 6 , 7, 7 , 8.1 and 8.2” . 9
A A
12 10 Modifications to A.2.2, “Balanced cabling” . 9
13 European foreword
14 This document (EN 50173-6:2018/prA1:2026) has been prepared by CLC/TC 215 “Electrotechnical aspects of
15 telecommunication equipment”.
16 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
17 1 Modifications to the European foreword
18 Add the following standards at the end of the paragraph starting with “At the time of publication …”:
“EN 50173-10 Information technology – Generic cabling systems – Part 10: Single pair cabling
EN 50173-20 Information technology – Generic cabling systems – Part 20: Alternative cabling
configurations”
19 Add the following list item to the paragraph starting with “This edition of EN 50173-3”:
20 “f)  includes the implementation of single pair cabling according to EN 50173-10.”
21 2 Modifications to the Introduction
22 Delete the first list item of the paragraph starting with “In addition, a number of Technical Reports …”.
23 Replace Figure 1 with the following:
24 “
26 Figure 1 — Schematic relationship between the EN 50173 series and other relevant documents”
27 Replace Table 1 with the following:
28 “
29 Table 1 — Contextual relationship between the EN 50173 series and other documents relevant for
30 information technology cabling systems
Building Generic cabling Specification phase Installation phase Operation phase
design phase design phase
EN 50174-1
EN 50173-2
EN 50174-2
EN 50173-3
EN 50174-1
EN 50174-3
EN 50174-4
EN 50310 EN 50173-4 Planning phase
EN 50174-4
EN 50173-5
EN 50310
EN 50173-6
(These ENs reference
EN 50174-2
general requirements
EN 50174-3
of EN 50173-1 and
EN 50310
EN 50173-10)
31 “
32 Add the following list item to the paragraph starting with “As a result, this standard”:
33 “e)  specifies a structure for generic cabling supporting a wide variety of applications including, but not
34 restricted to, those in EN 50173-10:2025, Annex C.”
35 3 Modifications to Clause 2, “Normative references”
36 Add the following reference:
37 EN 50173-10:2025, Information technology - Generic cabling systems - Part 10: Single pair cabling
38 4 Modifications to Clause 4, “Structure of the generic cabling for distributed
39 building services”
st
40 In 4.1, 1 paragraph, replace the last sentence with the following:
41 “Applications listed in EN 50173-1:2018, Annex F and EN 50173-10:2025, Annex C are supported by
42 connecting active equipment to the generic
...