ISO/IEC 11801-1:2017

Information technology - Generic cabling for customer premises - Part 1: General requirements

ISO/IEC 11801-1:2017(E) This document specifies a multi-vendor cabling system which may be implemented with material from single or multiple sources. This part of ISO/IEC 11801 defines requirements that are common to the other parts of the ISO/IEC 11801 series. Cabling specified by this document supports a wide range of services including voice, data, and video that may also incorporate the supply of power.

Technologies de l'information — Câblage générique des locaux d'utilisateurs — Partie 1: Titre manque

General Information

• Status: Published
• Publication Date: 20-Nov-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
• Start Date: 21-Nov-2017
• Due Date: 05-Jun-2018
• Completion Date: 05-Jun-2018

Relations

• Amended By: ISO/IEC 11801-1:2017/Amd 1:2025 - Information technology - Generic cabling for customer premises - Part 1: General requirements - Amendment 1
• Effective Date: 07-Dec-2025
• Revises: ISO/IEC 11801:2002/Amd 1:2008 - Information technology - Generic cabling for customer premises - Amendment 1
• Effective Date: 01-Mar-2014
• Revises: ISO/IEC 11801:2002/Amd 2:2010 - Information technology - Generic cabling for customer premises - Amendment 2
• Effective Date: 01-Mar-2014
• Revises: ISO/IEC 11801:2002 - Information technology - Generic cabling for customer premises
• Effective Date: 01-Mar-2014

Overview

ISO/IEC 11801-1:2017 - Information technology - Generic cabling for customer premises - Part 1: General requirements - defines the common, multi-vendor requirements for generic cabling systems used on customer premises. It establishes the architecture, interfaces, performance criteria and testing principles that support a wide range of services (voice, data, video) and the supply of power over cabling. This part provides the baseline requirements shared across the ISO/IEC 11801 series for balanced copper, coaxial and optical-fibre cabling.

Key Topics

• Cabling architecture and subsystems: functional elements, interfaces, horizontal/backbone/tie cabling and reference backbone implementations.
• Channel and link performance: transmission and link parameters for balanced cabling, coaxial and optical fibre (e.g., insertion loss/attenuation, return loss, NEXT, ACR, propagation delay, delay skew).
• Cable classifications: requirements for balanced cables (Categories 5–7, 8.1, 8.2 and BCT‑B), coaxial and cabled optical fibres, including environmental and mechanical characteristics.
• Connecting hardware and cords: mechanical, electrical and marking requirements for connectors, patch panels, and patch cords; references to connector types per IEC (e.g., IEC 60603-7, IEC 61076, IEC 61169).
• Environmental performance & installation: operating environments, environmental classification and installation best practices for reliable customer premises cabling.
• Conformance and testing: conformance procedures for channel and link verification, with normative test guidance contained in Annex A.
• Alien crosstalk and EMC considerations: requirements and measurement parameters to manage interference in high-density installations.

Applications

ISO/IEC 11801-1:2017 is applicable to:

• Enterprise network design and specification for office buildings, campuses and multi-tenant facilities.
• Data center and backbone planning where multi-vendor interoperability is required.
• Telecom room and horizontal cabling installations supporting IP voice, structured data and video systems.
• Facility managers and consultants specifying cabling to support Power over Ethernet (PoE) and other powered services.
• Manufacturers and installers developing products and performing conformance testing to standardize performance across suppliers.

Who Uses This Standard

• Network architects and system designers
• Cabling manufacturers and connector vendors
• Installation contractors and certified testers
• Facility managers, specifiers and procurement teams
• Standards committees and compliance auditors

Related Standards

• Other parts of the ISO/IEC 11801 series (application-specific and extended requirements)
• IEC connector standards cited within the document (IEC 60603-7, IEC 61076, IEC 61169)
• Local building codes and electromagnetic compatibility (EMC) regulations

Keywords: ISO/IEC 11801-1:2017, generic cabling, customer premises, balanced cabling, optical fibre, coaxial, channel performance, conformance testing, connecting hardware, Category 5–8.

Standards Content (Sample)

ISO/IEC 11801-1
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
Information technology – Generic cabling for customer premises –
Part 1: General requirements
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ISO/IEC 11801-1
Edition 1.0 2017-11
INTERNATIONAL
STANDARD
Information technology – Generic cabling for customer premises –

Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.200 ISBN 978-2-8322-5050-1

– 2 – ISO/IEC 11801-1:2017 © ISO/IEC 2017
CONTENTS
FOREWORD . 11
INTRODUCTION . 13
1 Scope . 15
2 Normative references . 15
3 Terms, definitions, abbreviations and symbols . 20
3.1 Terms and definitions . 20
3.2 Abbreviations . 27
3.3 Symbols . 29
3.3.1 Variables . 29
3.3.2 Indices . 30
4 Conformance . 30
5 Structure of generic cabling . 31
5.1 Functional elements . 31
5.2 Interfaces . 32
5.3 Cabling subsystems . 32
5.3.1 Cabling subsystem 1 . 32
5.3.2 Cabling subsystems n ≥ 2 . 33
5.3.3 Common subsystems . 33
5.3.4 Tie cabling . 34
5.3.5 Channel and permanent link . 34
6 Channel performance requirements . 34
6.1 General . 34
6.2 Environmental performance . 34
6.2.1 General . 34
6.2.2 Environmental classification. 35
6.3 Balanced cabling transmission performance . 37
6.3.1 General . 37
6.3.2 Component choice . 38
6.3.3 Channel parameters . 38
6.4 Coaxial cabling transmission performance . 64
6.4.1 General . 64
6.4.2 Component choice . 65
6.4.3 Channel parameters . 65
6.5 Optical fibre cabling transmission performance . 67
6.5.1 Component choice . 67
6.5.2 Channel parameters . 67
7 Link performance requirements . 67
7.1 General . 67
7.2 Balanced cabling . 68
7.2.1 General . 68
7.2.2 Return loss . 69
7.2.3 Insertion loss/attenuation . 70
7.2.4 NEXT . 72
7.2.5 Attenuation to crosstalk ratio at the near-end . 76
7.2.6 Attenuation to crosstalk ratio at the far-end . 78
7.2.7 Direct current loop resistance . 82

7.2.8 Direct current resistance unbalance . 83
7.2.9 Propagation delay . 83
7.2.10 Delay skew . 84
7.2.11 Unbalance attenuation and coupling attenuation . 86
7.2.12 Alien crosstalk . 89
7.3 Coaxial cabling . 94
7.3.1 General . 94
7.3.2 Return loss . 94
7.3.3 Insertion loss . 94
7.3.4 Direct current loop resistance . 95
7.3.5 DC current carrying capacity . 95
7.3.6 Screening attenuation . 95
7.4 Optical fibre cabling . 95
8 Reference implementation for backbone cabling subsystems . 96
8.1 General . 96
8.2 Balanced cabling . 96
8.2.1 Component choice . 96
8.2.2 Dimensions . 96
8.3 Optical fibre cabling . 97
8.3.1 General . 97
8.3.2 Component selection . 98
8.3.3 Dimensions . 98
9 Cable requirements . 98
9.1 General . 98
9.2 Operating environment . 98
9.3 Balanced cables . 98
9.3.1 Basic requirements . 98
9.3.2 Balanced cables of Category 5 through 7 , 8.1 and 8.2 . 99
A
9.3.3 Balanced cables of Category BCT-B . 101
9.4 Coaxial cables . 103
9.4.1 General . 103
9.4.2 Environmental characteristics . 103
9.4.3 Mechanical characteristics . 103
9.4.4 Electrical characteristics . 104
9.5 Optical fibre cable (cabled optical fibres) . 104
9.5.1 Mechanical and environmental characteristics . 104
9.5.2 Cabled optical fibre Categories . 105
10 Connecting hardware requirements . 106
10.1 General requirements . 106
10.1.1 Overview . 106
10.1.2 Location . 106
10.1.3 Design . 106
10.1.4 Operating environment . 107
10.1.5 Mounting . 109
10.1.6 Installation practices . 109
10.1.7 Marking and colour coding . 110
10.2 Category 5 through 7 , 8.1, and 8.2 connecting hardware for balanced
A
cabling . 110

– 4 – ISO/IEC 11801-1:2017 © ISO/IEC 2017
10.2.1 General . 110
10.2.2 Performance marking . 110
10.2.3 Mechanical characteristics . 110
10.2.4 Electrical characteristics . 112
10.2.5 Additional requirements . 124
10.3 BCT-B connecting hardware . 125
10.4 Connecting hardware for use with coaxial cabling for BCT applications . 125
10.4.1 General requirements . 125
10.4.2 Performance marking . 125
10.4.3 Electrical characteristics . 125
10.5 Optical fibre connecting hardware . 126
10.5.1 General requirements . 126
10.5.2 Marking and colour coding . 127
10.5.3 Mechanical and optical characteristics . 127
10.6 Connecting hardware in accordance with IEC 60603-7 series . 128
10.7 Connecting hardware in accordance with IEC 61076-3-104 . 129
10.8 Connecting hardware in accordance with IEC 61076-2-101 (Type D, 4 poles) . 129
10.9 Connecting hardware in accordance with IEC 61076-2-109 (Type X, 8 poles) . 129
10.10 Connecting hardware in accordance with IEC 61169-2 and IEC 61169-24
(Type F) . 130
10.11 Connecting hardware for two optical fibres . 130
10.12 Connecting hardware for twelve and twenty-four optical fibres . 130
11 Cord requirements . 131
11.1 General . 131
11.2 Operating environment . 131
11.3 Balanced cords of Category 5 through 7 , 8.1, 8.2 and BCT-B . 131
A
11.3.1 General . 131
11.3.2 Identification . 131
11.3.3 Operating environment . 132
11.3.4 Return loss . 132
11.3.5 NEXT . 132
11.4 Coaxial cords . 135
11.5 Optical fibre cords . 135
11.5.1 General . 135
11.5.2 Identification . 136
11.5.3 Performance requirements for patch cords . 136
Annex A (normative) Conformance testing procedures for balanced cabling of Classes
A to F , I and II and optical fibre cabling . 137
A
A.1 General . 137
A.2 Channel and link performance testing . 137
A.2.1 General . 137
A.2.2 Conformance testing of balanced cabling channels, and links . 137
A.2.3 Installation conformance testing of optical fibre cabling channels . 138
A.3 Overview of test schedules . 138
Annex B (normative) Mechanical and environmental performance testing of connecting
hardware for balanced cabling . 141
B.1 Overview. 141
B.2 Solderless connections . 141
B.3 Free and fixed connectors (modular plugs and jacks) . 142

B.4 Other connecting hardware . 143
Annex C (informative) Electromagnetic characteristics . 145
Annex D (informative) Acronyms for balanced cables . 146
Annex E (informative) Supported applications . 148
E.1 Supported applications for balanced cabling . 148
E.2 Supported applications for optical fibre cabling . 151
E.3 Supported applications for coaxial cabling . 154
E.4 Supported industrial applications for optical fibre cabling . 155
Annex F (informative) Optical fibre cable OM1, OM2 and OS1 . 156
Bibliography . 157

Figure 1 – Relationships between the generic cabling documents produced by
ISO/IEC JTC 1/SC 25 . 14
Figure 2 – General functional elements . 31
Figure 3 – Interconnect models . 31
Figure 4 – Cross-connect models . 32
Figure 5 – Equipment and test interfaces . 32
Figure 6 – Link options . 68
Figure 7 – Link designations . 68
Figure 8 – Backbone cabling model . 96
Figure 9 – Pin grouping and pair assignments for IEC 60603-7 series interface for
Categories 5, 6, 6 and 8.1 (front view of fixed connector (jack), not to scale) . 128
A
Figure 10 – Pin grouping and pair assignment for the IEC 60603-7 series interface for
Categories 7, 7 , 8.2 and BCT-B (front view of fixed connector (jack), not to scale) . 129
A
Figure 11 – Pin grouping and pair assignments for the IEC 61076-3-104 interface for
Categories 7, 7 , 8.2 and BCT-B (front view of fixed connector (jack), not to scale) . 129
A
Figure 12 – Four position jack pin and pair grouping assignments for IEC 61076-2-101
connecting hardware (front view of connector) . 129
Figure 13 – Eight position jack pin and pair grouping assignments for IEC 61076-2-
109 connecting hardware (front view of connector) . 130
Figure 14 – Conductor assignment of IEC 61169-2 and IEC 61169-24 (Type F)
connector . 130
Figure 15 – Optical fibre assignments for connecting hardware for two optical fibres . 130
Figure 16 – Optical fibre assignments for connecting hardware for 12 and 24 optical
fibres (front view of fixed or free connector) . 131
Figure D.1 – Cable naming schema . 146
Figure D.2 – Cable types . 147

Table 1 – Channel environments . 35
Table 2 – Details of environmental classification . 36
Table 3 – Return loss for a channel . 39
Table 4 – Informative return loss values for a channel at key frequencies . 40
Table 5 – Insertion loss for a channel . 41
Table 6 – Informative insertion loss values for a channel at key frequencies . 42
Table 7 – NEXT for a channel . 43
Table 8 – Informative NEXT values for a channel at key frequencies . 44

– 6 – ISO/IEC 11801-1:2017 © ISO/IEC 2017
Table 9 – PS NEXT for a channel . 45
Table 10 – Informative PS NEXT values for a channel at key frequencies . 46
Table 11 – Informative ACR-N values for a channel at key frequencies . 47
Table 12 – Informative PS ACR-N values for a channel at key frequencies . 48
Table 13 – ACR-F for a channel . 49
Table 14 – Informative ACR-F values for a channel at key frequencies . 50
Table 15 – PS ACR-F for a channel . 51
Table 16 – Informative PS ACR-F values for a channel at key frequencies. 52
Table 17 – DC loop resistance for a channel . 52
Table 18 – Propagation delay for a channel . 53
Table 19 – Informative propagation delay values for a channel at key frequencies . 54
Table 20 – Delay skew for a channel . 55
Table 21 – TCL for channel for unscreened systems . 56
Table 22 – Informative TCL values for unscreened channels at key frequencies . 56
Table 23 – TCL for Class I and II screened channels . 56
Table 24 – Informative TCL values for Class I and II screened channels at key
frequencies . 57
Table 25 – ELTCTL for channel for unscreened systems. 57
Table 26 – Informative ELTCTL values for unscreened channels at key frequencies . 58
Table 27 – ELTCTL for Class I and II channels . 58
Table 28 – Informative ELTCTL values for Class I and II channels at key frequencies . 58
Table 29 – Coupling attenuation for a channel for screened systems . 59
Table 30 – PS ANEXT for a channel . 60
Table 31 – Informative PS ANEXT values for a channel at key frequencies . 60
Table 32 – PS ANEXT for a channel . 61
avg
Table 33 – Informative PS ANEXT values for a channel at key frequencies . 61
avg
Table 34 – PS AACR-F for a channel . 62
Table 35 – Informative PS AACR-F values for a channel at key frequencies . 63
Table 36 – PS AACR-F for a channel . 63
avg
Table 37 – Informative PS AACR-F values for a channel at key frequencies . 64
avg
Table 38 – Alien crosstalk and coupling attenuation for screened channels. 64
Table 39 – Return loss for a channel . 65
Table 40 – Insertion loss for a channel . 65
Table 41 – Informative insertion loss values for a channel at key frequencies . 66
Table 42 – DC loop resistance for a channel . 66
Table 43 – DC current carrying capacity for a channel . 66
Table 44 – Operating voltage for a channel . 66
Table 45 – Screening attenuation for a channel . 67
Table 46 – Return loss for 2-connection or 3-connection link . 69
Table 47 – Informative return loss values for links at key frequencies . 70
Table 48 – Insertion loss for 2-connection or 3-connection link . 71
Table 49 – Informative insertion loss values for links with maximum implementation at
key frequencies . 72

Table 50 – NEXT for 2-connection or 3-connection link . 72
Table 51 – Informative NEXT values for links with maximum implementation at key
frequencies . 74
Table 52 – PS NEXT for 2-connection or 3-connection link . 75
Table 53 – Informative PS NEXT values for links with maximum implementation at key
frequencies . 76
Table 54 – Informative ACR-N values for links with maximum implementation at key
frequencies . 77
Table 55 – Informative PS ACR-N values for links with maximum implementation at key
frequencies . 78
Table 56 – ACR-F for 2-connection or 3-connection link . 79
Table 57 – Informative ACR-F values for links with maximum implementation at key
frequencies . 80
Table 58 – PS ACR-F for 2-connection or 3-connection link . 81
Table 59 – Informative PS ACR-F values for links with maximum implementation at
key frequencies . 82
Table 60 – DC loop resistance for 2-connection or 3-connection link. 82
Table 61 – Informative DC loop resistance for links with maximum implementation . 83
Table 62 – Propagation delay for 2-connection or 3-connection link . 84
Table 63 – Informative propagation delay values for links with maximum
implementation at key frequencies . 84
Table 64 – Delay skew for 2-connection or 3-connection link . 85
Table 65 – Informative delay skew for links with maximum implementation . 86
Table 66 – TCL for Class I and II screened permanent links. 87
Table 67 – Informative TCL values for Class I and II screened permanent links at key
frequencies . 87
Table 68 – ELTCTL for Class I and II permanent links . 88
Table 69 – Informative ELTCTL values for Class I and II permanent links at key
frequencies . 88
Table 70 – Coupling attenuation for a screened permanent link . 89
Table 71 – Informative coupling attenuation values for screened permanent links at
key frequencies . 89
Table 72 – PS ANEXT for 2-connection or 3-connection link . 90
Table 73 – Informative PS ANEXT values for links at key frequencies . 91
Table 74 – PS ANEXT for 2-connection or 3-connection link. 91
avg
Table 75 – Informative PS ANEXT values for links at key frequencies . 92
avg
Table 76 – PS AACR-F for 2-connection or 3-connection link . 92
Table 77 – Informative PS AACR-F values for links at key frequencies . 93
Table 78 – PS AACR-F for a 2-connection or 3-connection link . 93
avg
Table 79 – Informative PS AACR-F values for links at key frequencies . 94
avg
Table 80 – Alien crosstalk and coupling attenuation for screened links . 94
Table 81 – Insertion loss for link . 95
Table 82 – Informative insertion loss values for link at key frequencies . 95
Table 83 – DC loop resistance for link. 95
Table 84 – Backbone link length equations . 97

– 8 – ISO/IEC 11801-1:2017 © ISO/IEC 2017
Table 85 – Basic requirements of balanced cables . 99
Table 86 – Mechanical characteristics of balanced cables of Category 5, 6, 6 , 7 and
A
7 99
A
Table 87 – Mechanical characteristics of balanced cables of Category BCT-B . 102
Table 88 – Minimum transmission performance requirements BCT-B balanced pairs . 102
Table 89 – Basic requirements of coaxial cables . 103
Table 90 – Mechanical performance requirements for coaxial BCT cables . 103
Table 91 – Minimum electrical performance requirements for cables of Category BCT-
C 104
Table 92 – Cabled optical fibre attenuation (maximum), dB/km . 105
Table 93 – Multimode optical fibre modal bandwidth . 105
Table 94 – Environmental performance specifications for balanced cabling connecting
hardware . 107
Table 95 – Environmental performance specifications for coaxial cabling connecting
hardware . 108
Table 96 – Environmental performance specifications for optical fibre cabling
connecting hardware . 109
Table 97 – Mechanical characteristics of connecting hardware for use with balanced
cabling . 111
Table 98 – Matrix of backward compatible mated free and fixed connector (plug and
jack) performance . 113
Table 99 – Return loss . 113
Table 100 – Informative return loss values for connector at key frequencies . 114
Table 101 – Insertion loss . 114
Table 102 – Informative insertion loss values for connector at key frequencies . 115
Table 103 – Near-end crosstalk (NEXT) . 115
Table 104 – Informative NEXT values for connector at key frequencies . 116
Table 105 – Power sum near-end crosstalk (PS NEXT) (for information only) . 116
Table 106 – Informative PS NEXT values for connector at key frequencies . 117
Table 107 – Far-end crosstalk (FEXT) . 117
Table 108 – Informative FEXT values for connector at key frequencies . 118
Table 109 – Power sum far-end crosstalk (PS FEXT) (for information only). 118
Table 110 – Informative PS FEXT values for connector at key frequencies . 119
Table 111 – Input to output resistance . 119
Table 112 – Input to output resistance unbalance . 119
Table 113 – DC current carrying capacity . 119
Table 114 – Propagation delay . 120
Table 115 – Delay skew . 120
Table 116 – Transverse conversion loss (TCL) . 120
Table 117 – Informative TCL values for connector at key frequencies . 121
Table 118 – Transverse conversion transfer loss (TCTL) . 121
Table 119 – Informative TCTL values for connector at key frequencies . 121
Table 120 – Transfer impedance (screened connectors only) . 122
Table 121 – Informative transfer impedance values (screened connectors only) at key
frequencies . 122

Table 122 – Coupling attenuation (screened connectors only) . 122
Table 123 – Informative coupling attenuation values (screened connectors only) at key
frequencies . 122
Table 124 – Insulation resistance . 123
Table 125 – Voltage proof . 123
Table 126 – Power sum alien near-end crosstalk (PS ANEXT) . 123
Table 127 – Informative PS ANEXT values at key frequencies . 123
Table 128 – Power sum alien far-end crosstalk (PS AFEXT) . 124
Table 129 – Informative PS AFEXT values at key frequencies . 124
Table 130 – Coupling attenuation for BCT-B connecting hardware . 125
Table 131 – Formulae for return loss limits for BCT-C connecting hardware . 125
Table 132 – Return loss limits for BCT-C connecting hardware at key frequencies . 126
Table 133 – Formulae for insertion loss limits for BCT-C connecting hardware . 126
Table 134 – Insertion loss limits for BCT-C connecting hardware at key frequencies . 126
Table 135 – Screening attenuation limits for BCT-C connecting hardware . 126
Table 136 – Attenuation of connecting hardware for optical fibre . 127
Table 137 – Return loss of optical fibre connecting hardware . 127
Table 138 – Electrical characteristics of terminal equipment outlets intended for use
with balanced cabling . 128
Table 139 – Minimum return loss for balanced cords . 132
Table 140 – Informative values of return loss for balanced cords at key frequencies . 132
Table 141 – Assumptions for cabling components used in the calculation of NEXT
informative values . 134
Table 142 – Informative values of NEXT for 2 m balanced cords at key frequencies . 134
Table 143 – Informative values of NEXT for 5 m balanced cords at key frequencies . 135
Table 144 – Informative values of NEXT for 10 m balanced cords at key frequencies . 135
Table A.1 – Test regime for reference conformance and installation conformance –
Balanced cabling of Classes A through F , BCT-B, I and II. 139
A
Table A.2 – Test regime for reference conformance and installation conformance –
Optical fibre cabling . 140
Table B.1 – Standards for solderless connections . 141
Table B.2 – Standards for free and fixed connectors (modular plugs and jacks) . 142
Table B.3 – Standards for M12 style connectors . 142
Table B.4 – Free and fixed connectors (modular plugs and jacks) operations matrix . 143
Table B.5 – Reference for reliability testing of other connecting hardware. 143
Table B.6 – Other connecting hardware operations matrix . 144
Table E.1 – Applications using balanced cabling . 149
Table E.2 – Industrial applications using balanced cabling . 150
Table E.3 – Modular connector pin assignment for applications . 151
Table E.4 – Maximum channel att
...