ISO/IEC 11801-3:2017/AMD1:2021

ISO/IEC 11801-3
Edition 1.0 2021-04
INTERNATIONAL
STANDARD
AMENDMENT 1
Information technology – Generic cabling for customer premises –
Part 3: Industrial premises
ISO/IEC 11801-3:2017-11/AMD1:2021-04(en)

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ISO/IEC 11801-3
Edition 1.0 2021-04
INTERNATIONAL
STANDARD
AMENDMENT 1
Information technology – Generic cabling for customer premises –

Part 3: Industrial premises
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-9477-2

– 2 – ISO/IEC 11801-3:2017/AMD1:2021
© ISO/IEC 2021
INFORMATION TECHNOLOGY –
GENERIC CABLING FOR CUSTOMER PREMISES –

Part 3: Industrial premises
AMENDMENT 1
FOREWORD
1) ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental,
in liaison with ISO and IEC, also take part in the work.
2) The formal decisions or agreements of IEC and ISO on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested IEC and ISO National bodies.
3) IEC and ISO documents have the form of recommendations for international use and are accepted by IEC and
ISO National bodies in that sense. While all reasonable efforts are made to ensure that the technical content of
IEC and ISO documents is accurate, IEC and ISO cannot be held responsible for the way in which they are used
or for any misinterpretation by any end user.
4) In order to promote international uniformity, IEC and ISO National bodies undertake to apply IEC and ISO
documents transparently to the maximum extent possible in their national and regional publications. Any
divergence between any IEC and ISO document and the corresponding national or regional publication shall be
clearly indicated in the latter.
5) IEC and ISO do not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC and ISO marks of conformity. IEC and ISO are not
responsible for any services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this document.
7) No liability shall attach to IEC and ISO or their directors, employees, servants or agents including individual
experts and members of its technical committees and IEC and ISO National bodies for any personal injury,
property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including
legal fees) and expenses arising out of the publication, use of, or reliance upon, this ISO/IEC document or any
other IEC and ISO documents.
8) Attention is drawn to the Normative references cited in this document. Use of the referenced publications is
indispensable for the correct application of this document.
9) Attention is drawn to the possibility that some of the elements of this ISO/IEC document may be the subject of
patent rights. IEC and ISO shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO/IEC 11801-3 has been prepared by subcommittee SC 25: Interconnection
of information technology equipment, of ISO/IEC joint technical committee 1: Information
technology.
The text of this Amendment is based on the following documents:
FDIS Report on voting
JTC1-SC25/2995/FDIS JTC1-SC25/3009/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Amendment is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1, available at www.iec.ch/members_experts/refdocs.

_____________
© ISO/IEC 2021
INTRODUCTION TO THE AMENDMENT
This document contains requirements and/or recommendations for deployment of single pair
balanced cabling on the industrial cabling specified in ISO/IEC 11801-3:2017.
This document also includes end-to-end link requirements for Class D, E and E .
A
– 4 – ISO/IEC 11801-3:2017/AMD1:2021
© ISO/IEC 2021
INTRODUCTION
Add the following NOTE below the Figure 1 title:
NOTE Telecommunications infrastructure affects raw material consumption. The infrastructure design and
installation methods also influence product life and sustainability of electronic equipment life cycling. These aspects
of telecommunications infrastructure impact our environment. Since building life cycles are typically planned for
decades, technological electronic equipment upgrades are necessary. The telecommunications infrastructure design
and installation process magnifies the need for sustainable infrastructures with respect to building life, electronic
equipment life cycling and considerations of effects on environmental waste. Telecommunications designers are
encouraged to research local building practices for a sustainable environment and conservation of fossil fuels as
part of the design process.
2 Normative references
Add the following normative references:
IEC 63171-6, Connectors for electrical and electronic equipment – Part 6: Detail specification
for 2-way and 4-way (data/power), shielded, free and fixed connectors for power and data
transmission with frequencies up to 600 MHz
IEC 61156-11, Multicore and symmetrical pair/quad cables for digital communications –
Part 11: Symmetrical single pair cables with transmission characteristics up to 600 MHz –
Horizontal floor wiring – Sectional specification
IEC 61156-12 , Multicore and symmetrical pair/quad cables for digital communications –
Part 12: Symmetrical single pair cables with transmission characteristics up to 600 MHz – Work
area wiring
Replace the ISO/IEC 14763-4 reference with the following new reference:
ISO/IEC 14763-4, Information technology – Implementation and operation of customer premises
cabling – Part 4: Measurement of end-to-end (E2E) links, modular plug terminated links (MPTL)
and direct attach cabling
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions
Add the following terms and definitions at the end of the list:
3.1.14
balanced 1-pair cabling channel
transmission path between equipment constructed from balanced 1-pair cables, balanced 1-pair
connectors and balanced 1-pair cable assemblies to facilitate signal and power delivery
3.1.15
edge distributor
optional additional distributor to accommodate active equipment to allow transition from
balanced 4-pair cabling to balanced 1-pair cabling
____________
Under preparation. Stage at time of publication: IEC CDV 61156-12:2020.

© ISO/IEC 2021
3.1.16
end-to-end link
transmission path between equipment including the end connections attached to the equipment
3.1.17
bulkhead connection
connection that serves as an interconnection point located through an enclosure wall
3.1.18
segment
cabling between connectors of an end-to-end link
3.2 Abbreviated terms
Add the following abbreviated terms at the end of the list:
B bulkhead connection
C connection
CP consolidation point
ED edge distributor
ffs for further study
L1 length of end-to-end link
SPE Single Pair Ethernet
TI test interface
3.3 Symbols
Replace subclause 3.3 with the following:
Symbols used identically in different parts of ISO/IEC 11801 are defined in
ISO/IEC 11801-1:2017, 3.3.
fixed connector
free connector
connection
bulkhead connection with back-to-back fixed connectors acting as one
connection
bulkhead connection with separated back-to-back fixed connectors
acting as two connections
The symbols shown in Figure 14 define the number of connections in all end-to-end links.

Figure 14 – Symbols for bulkhead connections

– 6 – ISO/IEC 11801-3:2017/AMD1:2021
© ISO/IEC 2021
NOTE Bulkhead mounted connections with fixed cable can have a variable length to accommodate the installation
within the cabinet.
4 Conformance
Add the following list items:
f) in case balanced 1-pair cabling channels are installed between the IID or ED and the NI of
an Automation Island, between the IID or ED and the TO or AO, or between the IID and ED,
channels shall conform to the requirements of Annex A;
g) in case balanced 1-pair cabling channels are installed between the ID and the NI of an
Automation Island, channels shall conform to the requirements of Annex E.
5.3.1 General structure
Replace list item a) with the following:
a) Annex A describes the combined cabling structure of generic and industrial cabling system
to connect several AIs via an ID to support critical process control, monitoring and
automation data (PCMA).
5.3.3 Floor cabling subsystem
Replace list item b) with the following:
b) the mechanical termination of the floor cables including the connecting hardware (e.g. of
interconnect or cross-connect) at the FD together with associated patch cords and/or
jumpers, and any passive connections to the IDs.
5.6.2 Channels and permanent links
Add the following new paragraph after the first paragraph of 5.6.2:
The transmission performance of balanced 1-pair cabling between specific test interfaces is
detailed in Annex E for channels.
5.7.2 Distributors
Replace the existing Table 1 with the following new table:
Table 1 – Link lengths equations
Length
Channel
m
a
Intermediate 40
Intermediate 100
b
1 000
Intermediate
Intermediate + horizontal + building backbone + campus backbone 10 000
NOTE In some implementations of the intermediate cabling subsystem in Clause 8, the ID might not support TOs
up to the maximum distance shown.
a
for 40 m balanced 1-pair cabling
b
for 1 000 m balanced 1-pair cabling

© ISO/IEC 2021
5.7.6 Telecommunications outlet
Add the following to item c) after the second bullet point:
or
• 1-pair of a 1-pair balanced cable;
6.1 General
Delete the sixth and seventh paragraphs.
In the paragraph immediately following Figure 10, delete the word "only".
6.3.2.3 Intermediate cabling
Add the following new paragraphs after the first paragraph:
Generic balanced 1-pair cabling shall comply with the channel performance as required by
Annex C and ISO/IEC 11801-1.
For the applications specified in Annex E, 1-pair cabling shall comply with the channel
performance as required by Annex C and Annex E.
6.3.2.4 Cable sharing
Add the following new paragraph after the first paragraph:
In the case of cable sharing by using balanced 1-pair cabling channels, additional requirements
shall be taken into account for balanced cabling in accordance with ISO/IEC 11801-1 and
ISO/IEC TR 11801-9906:2020, Annex D.
7.2 Balanced cabling
Add the following new paragraphs after the first paragraph:
Generic balanced 1-pair cabling shall comply with the link performance as required by Annex C
and ISO/IEC 11801-1.
For the applications specified in Annex E, 1-pair cabling shall comply with the link performance
as required by Annex C and Annex E.
8.1 General
Add the following after "Clause 6" at the end of the second sentence:
" or performance requirements of Annex E in case balanced 1-pair cabling is installed."
8.2.1 General
Add the following new sentence after the first sentence:
In the case of already installed balanced 1-pair cabling channels for up to 1 000 m the
performance shall be ensure
...