ISO/IEC 11801-1:2017
(Main)Information technology - Generic cabling for customer premises - Part 1: General requirements
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 vido that may also incorporate the supply of power.
The contents of the corrigendum of April 2018 have been included in this copy.
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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
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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
– 4 – ISO/IEC 11801-1:2017 © ISO/IEC 2017
10.2 Category 5 through 7 , 8.1, and 8.2 connecting hardware for balanced
A
cabling .
...
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