ISO/IEC TR 11801-9902:2017

Information technology — Generic cabling for customer premises — Part 9902: Specifications for End-to-end link configurations

ISO/IEC TR 11801-9902:2017(E) This Technical Report provides definitions for, and examples of, cabling implementations described as end-to-end (E2E) links. The document also provides performance specifications to support Class D and Class E balanced cabling channels of ISO/IEC 11801-1. These specifications amend those channel specifications of ISO/IEC 11801-1 by including the impact of the free connectors in accordance with the interfaces specified in ISO/IEC 11801-3 used to terminate the E2E link. Test methods are provided in ISO/IEC 14763-4.

Technologies de l'information — Câblage générique des locaux d'utilisateurs — Partie 9902: Titre manque

General Information

• Status: Published
• Publication Date: 06-Jul-2017
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Drafting Committee: ISO/IEC JTC 1/SC 25 - Interconnection of information technology equipment
• Current Stage: 6060 - International Standard published
• Due Date: 27-Apr-2019
• Completion Date: 07-Jul-2017

Standards Content (Sample)

ISO/IEC TR 11801-9902
Edition 1.0 2017-06
TECHNICAL
REPORT

Information technology – Generic cabling for customer premises –
Part 9902: End-to-end link configurations

ISO/IEC TR 11801-9902:2017-06(en)

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ISO/IEC TR 11801-9902



Edition 1.0 2017-06




TECHNICAL



REPORT



















Information technology – Generic cabling for customer premises –

Part 9902: End-to-end link configurations



























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION






ICS 35.200 ISBN 978-2-8322-4486-9



  Warning! Make sure that you obtained this publication from an authorized distributor.

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© IEC 2017
CONTENTS
FOREWORD . 5
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviated terms and symbols . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 8
3.3 Symbols . 8
4 Specifications . 9
5 Examples of end-to-end link configurations . 10
6 Performance specifications when using end-to-end link limits . 11
6.1 General . 11
6.2 Worst case limits. 12
6.3 Insertion loss limits . 13
6.4 Return loss . 14
6.5 NEXT limits . 16
6.6 PSNEXT limits . 17
6.7 ACR-F Limits . 18
6.8 PSACR-F . 19
6.9 TCL specifications . 19
6.10 ELTCTL specifications . 20
6.11 Coupling attenuation specifications . 20
6.12 DC loop resistance. 20
6.13 Propagation delay . 21
6.14 Delay skew . 21
6.15 DC resistance unbalance within a pair . 21
7 E2E link performance . 21
7.1 General . 21
7.2 Reference performance testing . 22
7.3 Installation performance testing . 22
7.4 Installation performance testing of E2E links . 22
8 Testing of end-to-end links . 23
Annex A (informative) CP cords . 24
A.1 Specifications for Class D and Class E CP cords . 24
A.2 Specifications for Class E CP cords . 24
A
A.2.1 General . 24
A.2.2 Insertion loss . 24
A.2.3 Return loss . 24
A.2.4 NEXT . 25
A.2.5 PSNEXT . 25
A.2.6 ACR-F . 25
A.2.7 PSACR-F . 25
A.2.8 TCL . 26
A.2.9 ELTCTL . 26

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ISO/IEC TR 11801-9902:2017 – 3 –
© IEC 2017
A.2.10 Propagation delay . 26
A.2.11 Delay skew . 26
A.2.12 DC resistance unbalance within a pair . 26
Bibliography . 27

Figure 1 – Symbols for bulkhead connections . 9
Figure 2 – One-segment, two-connections, E2E link . 10
Figure 3 – Two-segments, three-connections, E2E link . 10
Figure 4 – Three-segments, one-connection bulkheads, four-connections, E2E link . 10
Figure 5 – Three-segments, six-connections, E2E link . 10
Figure 6 – Three-segments, four-connections, E2E link . 11
Figure 7 – Three-segments, four-connections, E2E link . 11
Figure 8 – Four-segments, five-connections, E2E link . 11
Figure 9 – Five-segments, six-connections, E2E link. 11
Figure A.1 – One-segment, two-connection, CP cord . 24

Table 1 – Worst case Class D E2E link performance at key frequencies . 12
Table 2 – Worst case Class E E2E link performance at key frequencies . 13
Table 3 – Class D E2E link insertion loss limits . 13
Table 4 – Class E E2E link insertion loss limits . 14
Table 5 – Class D E2E link return loss limits . 14
Table 6 – Class E E2E link return loss limits . 15
Table 7 – Class D E2E link NEXT limits . 16
Table 8 – Class E E2E link NEXT limits . 16
Table 9 – Class D E2E link PSNEXT limits . 17
Table 10 – Class E E2E link PSNEXT limits . 17
Table 11 – Class D E2E Link ACR-F limits . 18
Table 12 –Class E E2E Link ACR-F limits . 18
Table 13 – Class D E2E link PSACR-F limits . 19
Table 14 – Class E E2E link PSACR-F limits . 19
Table 15 – E2E link TCL . 19
Table 16 – E2E link segment ELTCTL . 20
Table 17 – Minimum E2E link coupling attenuation . 20
Table 18 – E2E link segment DC loop resistance . 20
Table 19 – E2E link delay . 21
Table 20 – E2E link delay skew . 21
Table 21 – E2E link DC resistance unbalance . 21
Table 22 – Test regime for reference performance and installation performance –
Balanced cabling of Classes D to E . 23
Table A.1 – Class E insertion loss specifications . 24
A
Table A.2 – Class E return loss specifications . 25
A

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© IEC 2017
Table A.3 – Class E NEXT specifications . 25
A
Table A.4 – Class E PSNEXT specifications . 25
A
Table A.5 – Class E ACR-F specifications . 25
A
Table A.6 – Class E PSACR-F specifications . 26
A
Table A.7 – Class E propagation delay specifications . 26
A
Table A.8 – Class E delay skew specifications . 26
A
Table A.9 – E2E link DC resistance unbalance . 26

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ISO/IEC TR 11801-9902:2017 – 5 –
© IEC 2017
INFORMATION TECHNOLOGY –
GENERIC CABLING FOR CUSTOMER PREMISES –

Part 9902: End-to-end link configurations

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. In the field of information technology,
ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
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 National Committees and ISO member bodies.
3) IEC, ISO and ISO/IEC publications have the form of recommendations for international use and are accepted
by IEC National Committees and ISO member bodies in that sense. While all reasonable efforts are made to
ensure that the technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO cannot be held
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of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
The main task of the joint technical committee is to prepare International Standards. However,
the joint technical committee may propose the publication of a Technical Report when it has
collected data of a different kind from that which is normally published as an International
Standard, for example "state of the art".
ISO/IEC TR 11801-9902, which is a Technical Report, was prepared by subcommittee 25:
Interconnection of information technology equipment, of ISO/IEC joint technical committee 1:
Information technology.
This Technical Report has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all currently available parts of the ISO/IEC 11801 series, under the general title
Information technology — Generic cabling for customer premises, can be found on the IEC
website.

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© IEC 2017
INTRODUCTION
One major difference between a standard generic cabling installation and an industrial cabling
as also other application areas of cabling is how it is installed. In these areas it is common
practice to deploy cabling channels constructed from one or more cords as described in
1
Annex B and Annex C of ISO/IEC 11801-3:— . In addition, the cords are field terminated
rather than pre-terminated into plugs elsewhere. As a result, these cords might have problems
associated with the termination process which are not identified during channel verification
testing in accordance with ISO/IEC 11801-1 since such testing excludes the free connectors
at the end of the channel.
This Technical Report provides definitions for, and examples of, such cabling
implementations, described as end-to-end (E2E) links. It also provides performance
specifications to support Class D and Class E balanced cabling channels of ISO/IEC 11801-1
which include the impact of the terminating connectors that may be used for performance
verification using the test method of ISO/IEC 14763-4.


___________
1
 Under preparation. Stage at the time of publication: ISO/IEC FDIS 11801-3:2017.

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ISO/IEC TR 11801-9902:2017 – 7 –
© IEC 2017
INFORMATION TECHNOLOGY –
GENERIC CABLING FOR CUSTOMER PREMISES –

Part 9902: End-to-end link configurations



1 Scope
This part of ISO/IEC 11801, which is a Technical Report, provides definitions for, and
examples of, cabling implementations described as end-to-end (E2E) links.
In addition, this document provides performance specifications to support Class D and
Class E balanced cabling channels of ISO/IEC 11801-1. These specifications amend those
channel specifications of ISO/IEC 11801-1 by including the impact of the free connectors in
accordance with the interfaces specified in ISO/IEC 11801-3 used to terminate the E2E link.
Test methods are provided in ISO/IEC 14763-4.
End-to-end link configurations can include any type of connection.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
2
ISO/IEC 11801-1 , Information technology – Generic cabling for customer premises – Part 1:
General requirements
3
ISO/IEC 11801-3 , Information technology – Generic cabling for customer premises – Part 3:
Industrial premises
4
ISO/IEC 14763-4 , Information technology – Implementation and operation of customer
premises cabling – Part 4: Measurement of end-to-end (E2E)-links
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 11801-1,
ISO/IEC 11801-3 and the following apply.
___________
2
 Under preparation. Stage at the time of publication: ISO/IEC FDIS 11801-1:2017.
3
 Under preparation. Stage at the time of publication: ISO/IEC FDIS 11801-3:2017.
4
 Under preparation. Stage at the time of publication: ISO/IEC CDV 14763-4:2017.

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© IEC 2017
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
end-to-end link
end-to-end transmission path formed by structured cabling based on passive components
including the portion of the end connection that is attached to the link and the portion of the
end connection that is attached to the end equipment
3.1.2
fixed connector
connector for attachment to a rigid surface
3.1.3
free connector
connector for attachment to a free end
3.1.4
bulkhead connection
connection that serves as an interconnection point located through an enclosure wall
3.1.5
segment
cabling between connectors of an end-to-end link
3.2 Abbreviated terms
For the purposes of this document, the abbreviations given in ISO/IEC 11801-1,
ISO/IEC 11801-3 and the following apply.
B bulkhead connection
C connection
CP consolidation point
E2E end-to-end
ffs for further study
L1 length of E2E-link
TI test interface
3.3 Symbols
For the purposes of this document, the symbols given in ISO/IEC 11801-1, ISO/IEC 11801-3
and the following apply.

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ISO/IEC TR 11801-9902:2017 – 9 –
© IEC 2017
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 1 define the number of connections in all E2E links.
IEC

Figure 1 – Symbols for bulkhead connections
NOTE Bulkhead mounted connections with fixed cable can have a variable length to accommodate the installation
with in the cabinet.
Bulkhead connector assemblies can consist of one plug jack assembly with a cable attached
or two back-to-back jacks meeting the distance specifications defined by IEC 61918 for a
specific transmission class.
4 Specifications
The specifications for an end-to-end link include the following.
a) The configurations and structure should meet the specifications outlined in Clause 5.
b) The interfaces to the cabling should meet the specifications of ISO/IEC 11801-1 or
ISO/IEC 11801-3 with respect to mating interfaces and performance.
c) Connecting hardware at other places in the cabling structure should meet the performance
specifications specified in ISO/IEC 11801-1.
d) Installation should be performed in accordance with IEC 61918 and ISO/IEC 14763-2.
.
e) The E2E links should meet the specifications of Clause 6
f) Performance testing to the specifications of Clause 6 should be used to provide assurance
of installed cabling to determine its capacity to support the applications described by
IEC 61918 and ISO/IEC 11801-1.
g) The performance of end-to-end link as specified in Clause 6 should support the channel
specifications specified in ISO/IEC 11801-1. Performance can be achieved by one of the
following when the additional connections are included in the test results:
1) an E2E link design and implementation ensuring that the prescribed transmission
performance is met;
2) attachment of appropriate components to a permanent link or CP link meeting the
prescribed performance class of ISO/IEC 11801-1;

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© IEC 2017
3) using compatible cabling components that meet the specifications of ISO/IEC 11801-3
and ISO/IEC 11801-1.
5 Examples of end-to-end link configurations
There are multiple configurations of E2E links that are identified by the number of mated
connections in the configuration including those at the ends of the E2E link. This document
describes two-, three-, four-, five-, and six-connection E2E links as illustrated in Figure 2 to
Figure 9.
Annex A provides information regarding CP cords.
IEC

Figure 2 – One-segment, two-connections, E2E link
IEC

Figure 3 – Two-segments, three-connections, E2E link
IEC

Figure 4 – Three-segments, one-connection bulkheads, four-connections, E2E link
IEC

Figure 5 – Three-segments, six-connections, E2E link

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ISO/IEC TR 11801-9902:2017 – 11 –
© IEC 2017

IEC
Figure 6 – Three-segments, four-connections, E2E link
IEC

Figure 7 – Three-segments, four-connections, E2E link
IEC

Figure 8 – Four-segments, five-connections, E2E link
IEC

Figure 9 – Five-segments, six-connections, E2E link
6 Performance specifications when using end-to-end link limits
6.1 General
The performance specifications of 6.3 are based on the number of connections comprising the
E2E link. These specifications are based on the modelling techniques described in
ISO/IEC TR 11801-9903 using the balanced cabling components of Category 5 and
Category 6 of ISO/IEC 11801-1 to provide the specification for Class D and Class E,
respectively.
The worst case limits of 6.2 show the values calculated using the formulae of 6.3 to 6.8 for six
connections as in Figure 4 and Figure 5.
The specifications for two- and three-connection E2E links are based on the two- and
three-connection permanent link specifications of ISO/IEC 11801-1.

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© IEC 2017
The specifications for four-, five- and six-connection E2E links are based on the matrix model
of ISO/IEC TR 11801-9903. For these E2E links the model was used to examine the
difference between traditional channels and a similar topology of E2E links. This difference
was then added to the channel limits provided by ISO/IEC 11801-1 to provide the E2E link
limits.
In 6.2 the limits for the E2E links for Class D and Class E are provided.
6.2 Worst case limits
Table 1 and Table 2 contain the worst case limits for E2E links containing six connections for
Class D and Class E, respectively. The tables summarize the values in 6.3 to 6.8. 6.9 to 6.15
contain additional parameters and limits.
Table 1 – Worst case Class D E2E link performance at key frequencies
Frequency IL RL NEXT PSNEXT ACRF PSACRF
MHz dB dB dB dB dB dB
1 4,00 16,73 63,29 60,29 56,28 53,28
4 4,69 16,69 53,51 50,51 44,24 41,24
10 7,40 16,61 46,88 43,88 36,28 33,28
20 10,56 16,47 41,73 38,73 30,26 27,26
30 13,04 14,58 38,64 35,64 26,74 23,74
40 15,17 13,20 36,39 33,39 24,24 21,24
50 17,08 12,10 34,62 31,62 22,30 19,30
60 18,83 11,18 33,14 30,14 20,72 17,72
70 20,45 10,38 31,87 28,87 19,38 16,38
80 21,98 9,67 30,74 27,74 18,22 15,22
90 23,43 9,03 29,73 26,73 17,20 14,20
100 24,82 8,44 28,82 25,82 16,28 13,28

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© IEC 2017
Table 2 – Worst case Class E E2E link performance at key frequencies
Frequency IL RL NEXT PSNEXT ACRF PSACRF
MHz dB dB dB dB dB dB
1 4,00 18,45 65,00 65,00 62,80 59,80
4 4,26 18,43 63,01 60,51 50,76 47,76
10 6,68 18,40 56,49 53,91 42,80 39,80
20 9,50 16,83 51,45 48,79 36,78 33,78
30 11,70 15,89 48,43 45,73 33,25 30,25
40 13,60 15,20 46,26 43,52 30,76 27,76
50 15,29 14,17 44,54 41,77 28,82 25,82
60 16,83 13,32 43,11 40,33 27,23 24,23
70 18,27 12,59 41,89 39,08 25,89 22,89
80 19,61 11,95 40,81 37,99 24,74 21,74
90 20,89 11,38 39,85 37,
...