ISO/IEC 11801:2002
(Main)Information technology - Generic cabling for customer premises
Information technology - Generic cabling for customer premises
Within customer premises, the importance of the cabling infrastructure is similar to that of other fundamental building utilities such as heating, lighting and mains power. As with other utilities, interruptions to service can have a serious impact. Poor quality of service due to lack of design foresight, use of inappropriate components, incorrect installation, poor administration or inadequate support can threaten an organisation's effectiveness. Historically, the cabling within premises comprised both application specific and multipurpose networks. The original edition of this standard enabled a controlled migration to generic cabling and the reduction in the use of application-specific cabling. This second edition of ISO/IEC 11801 has been developed to reflect the increased demands and opportunities which have arisen since - and are partly the result of - publication of the first edition in 1995. The contents of the corrigendas of September 2002 and December 2002 have been included in this copy.
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INTERNATIONAL ISO/IEC
STANDARD 11801
Second edition
2002-09
Information technology –
Generic cabling for customer premises
Reference number
INTERNATIONAL ISO/IEC
STANDARD 11801
Second edition
2002-09
Information technology –
Generic cabling for customer premises
© ISO/IEC 2002
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
ISO/IEC Copyright Office Case postale 56 CH-1211 Genève 20 Switzerland
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For price, see current catalogue
ISO/IEC 11801
(Second edition – 2002)
Information technology –
Generic cabling for customer premises
CORRIGENDUM 1
Page 23
3.2. Abbreviations
Add, after the abbreviation ATM, the following new abbreviation:
BCT Broadcast and communications technologies, sometimes referred to as HEM
Replace, the explanation of HEM by the following:
HEM Home Entertainment & Multimedia, see BCT
Page 50
7.2.2.1 Component choice
Add, on page 51, after the third bullet, the following new note:
NOTE For the relationship and requirements of classes and categories in earlier editions of this standard, see
Annex I.
Page 132
Bibliography
Delete, on page 133, the reference:
IEC 61300-2-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-2: Tests – Mating durability
Delete, on page 134, the reference:
IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-6: Examinations and measurements – Return loss
Delete, on page 135, the reference:
ISO/IEC TR 14763-2, Information technology – Implementation and operation of customer
premises cabling – Part 2: Planning and installation
September 2002
ISO/IEC 11801
(Second edition – 2002)
Information technology –
Generic cabling for customer premises
CORRIGENDUM 2
Page 66
10.2.4.2 Telecommunications outlets
Replace, in the fourth line of the first paragraph, “… as specified in 0.” by … “as specified in
10.2.5.”
December 2002
– 2 – 11801 © ISO/IEC:2002(E)
CONTENTS
FOREWORD.10
INTRODUCTION.11
1 Scope.13
2 Normative references.13
3 Definitions, abbreviations and symbols .17
3.1 Definitions.17
3.2 Abbreviations.23
3.3 Symbols.24
3.3.1 Variables.24
3.3.2 Indices.25
4 Conformance.25
5 Structure of the generic cabling system .26
5.1 General.26
5.2 Functional elements.26
5.3 Cabling subsystems.27
5.3.1 General.27
5.3.2 Campus backbone cabling subsystem .27
5.3.3 Building backbone cabling subsystem.28
5.3.4 Horizontal cabling subsystem .28
5.3.5 Design objectives.28
5.4 Interconnection of subsystems.29
5.4.1 General.29
5.4.2 Centralised cabling architecture.30
5.5 Accommodation of functional elements.30
5.6 Interfaces.30
5.6.1 Equipment interfaces and test interfaces .30
5.6.2 Channel and permanent link .32
5.6.3 External network interface .32
5.7 Dimensioning and configuring.32
5.7.1 Distributors.32
5.7.2 Cables.34
5.7.3 Work area cords and equipment cords.34
5.7.4 Patch cords and jumpers .34
5.7.5 Telecommunications outlet (TO) .35
5.7.6 Consolidation point.36
5.7.7 Telecommunications rooms and equipment rooms.36
5.7.8 Building entrance facilities.36
5.7.9 External services cabling.36
6 Performance of balanced cabling.37
6.1 General.37
6.2 Layout.38
6.3 Classification of balanced cabling.39
6.4 Balanced cabling performance .39
6.4.1 General.39
11801 © ISO/IEC:2002(E) – 3 –
6.4.2 Return loss.39
6.4.3 Insertion loss/attenuation.40
6.4.4 NEXT.41
6.4.5 Attenuation to crosstalk ratio (ACR).44
6.4.6 ELFEXT.45
6.4.7 Direct current (d.c.) loop resistance .47
6.4.8 Direct current (d.c.) resistance unbalance.48
6.4.9 Current carrying capacity.48
6.4.10 Operating voltage .48
6.4.11 Power capacity.48
6.4.12 Propagation delay.48
6.4.13 Delay skew.49
6.4.14 Unbalance attenuation.49
6.4.15 Coupling attenuation.50
7 Reference implementations for balanced cabling .50
7.1 General.50
7.2 Balanced cabling.50
7.2.1 General.50
7.2.2 Horizontal cabling.50
7.2.3 Backbone cabling.54
8 Performance of optical fibre cabling.55
8.1 General.55
8.2 Component choice.55
8.3 Channel attenuation.56
8.4 Channel topology .56
8.5 Propagation delay.58
9 Cable requirements.58
9.1 General.58
9.2 Balanced cables.58
9.2.1 Basic performance requirements.58
9.2.2 Additional requirements.59
9.2.3 Additional performance requirements for flexible cables .60
9.3 Additional crosstalk considerations for cable sharing in balanced cables .60
9.3.1 General.60
9.3.2 Power summation in backbone cables .60
9.3.3 Hybrid, multi-unit and cables connected to more than one TO .60
9.4 Optical fibre cables.61
9.4.1 Optical fibre types.61
9.4.2 Generic performance requirements.61
9.4.3 Multimode optical fibre cable .61
9.4.4 Single-mode optical fibre cables .62
10 Connecting hardware requirements.62
10.1 General requirements.62
10.1.1 Applicability.62
10.1.2 Location.63
10.1.3 Design.63
10.1.4 Operating environment .63
10.1.5 Mounting.63
– 4 – 11801 © ISO/IEC:2002(E)
10.1.6 Installation practices.63
10.1.7 Marking and colour coding.64
10.2 Connecting hardware for balanced cabling .64
10.2.1 General requirements.64
10.2.2 Performance marking .64
10.2.3 Mechanical characteristics.64
10.2.4 Electrical characteristics.66
10.2.5 Telecommunications outlet requirements .72
10.2.6 Design considerations for installation .73
10.3 Optical fibre connecting hardware .74
10.3.1 General requirements.74
10.3.2 Marking and colour coding.74
10.3.3 Mechanical and optical characteristics.74
10.3.4 Telecommunications outlet requirements .75
10.3.5 Connection
...
ISO/IEC 11801
Edition 2.2 2011-06
INTERNATIONAL
STANDARD
Information technology – Generic cabling for customer premises
ISO/IEC 111801:2002+A1:2008+A2:2010(E)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about ISO/IEC copyright or have an enquiry about obtaining additional rights to this
publication, please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
ISO/IEC 11801
Edition 2.2 2011-06
INTERNATIONAL
STANDARD
Information technology – Generic cabling for customer premises
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
CE
ICS 35.200 ISBN 978-2-88912-194-6
– 2 – 11801 © ISO/IEC:2002+A1:2008
+A2:2010(E)
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 16
2 Normative references . 16
3 Terms, definitions, abbreviations and symbols . 20
3.1 Terms and definitions . 20
3.2 Abbreviations . 30
3.3 Symbols . 32
3.3.1 Variables . 32
3.3.2 Indices . 33
4 Conformance . 33
5 Structure of the generic cabling system . 34
5.1 General . 34
5.2 Functional elements . 34
5.3 Cabling subsystems . 35
5.3.1 General . 35
5.3.2 Campus backbone cabling subsystem . 36
5.3.3 Building backbone cabling subsystem . 36
5.3.4 Horizontal cabling subsystem . 36
5.3.5 Design objectives . 37
5.4 Interconnection of subsystems . 37
5.4.1 General . 37
5.4.2 Centralised cabling architecture. 38
5.5 Accommodation of functional elements . 39
5.6 Interfaces . 39
5.6.1 Equipment interfaces and test interfaces . 39
5.6.2 Channel and permanent link . 41
5.6.3 External network interface . 41
5.7 Dimensioning and configuring. 41
5.7.1 Distributors . 41
5.7.2 Cables . 43
5.7.3 Work area cords and equipment cords . 43
5.7.4 Patch cords and jumpers . 43
5.7.5 Telecommunications outlet (TO) . 43
5.7.6 Consolidation point . 45
5.7.7 Telecommunications rooms and equipment rooms . 45
5.7.8 Building entrance facilities . 45
5.7.9 External services cabling . 45
6 Performance of balanced cabling . 46
6.1 General . 46
6.2 Layout . 47
6.3 Classification of balanced cabling . 48
11801 © ISO/IEC:2002+A1:2008 – 3 –
+A2:2010(E)
6.4 Balanced cabling performance . 48
6.4.1 General . 48
6.4.2 Return loss . 48
6.4.3 Insertion loss/attenuation . 50
6.4.4 NEXT . 51
6.4.5 Attenuation to crosstalk ratio at the near-end (ACR-N) . 55
6.4.6 Attenuation to crosstalk ratio at the far-end (ACR-F). 56
6.4.7 Direct current (d.c.) loop resistance . 59
6.4.8 Direct current (d.c.) resistance unbalance. 59
6.4.9 Current carrying capacity . 59
6.4.10 Dielectric withstand . 60
6.4.11 Power capacity . 60
6.4.12 Propagation delay . 60
6.4.13 Delay skew . 61
6.4.14 Unbalance attenuation and coupling attenuation . 61
6.4.15 Alien crosstalk . 63
7 Reference implementations for balanced cabling . 69
7.1 General . 69
7.2 Balanced cabling . 69
7.2.1 General . 69
7.2.2 Horizontal cabling . 70
7.2.3 Backbone cabling . 73
8 Performance of optical fibre cabling . 75
8.1 General . 75
8.2 Component choice . 76
8.3 Channel attenuation . 76
8.4 Channel topology . 76
8.5 Propagation delay . 78
9 Cable requirements . 78
9.1 General . 78
9.2 Balanced cables . 78
9.2.1 Performance for balanced cables. 78
9.2.2 Additional requirements . 79
9.2.3 Additional performance requirements for flexible cables . 82
9.3 Additional crosstalk considerations for balanced cables . 82
9.3.1 Cable sharing . 82
9.3.2 Power summation in backbone cables . 82
9.3.3 Hybrid, multi-unit and cables connected to more than one TO . 83
9.4 Optical fibre cable (cabled optical fibres) . 83
9.4.1 Cabled optical fibre Categories . 83
9.4.2 Generic performance requirements . 83
9.4.3 Multimode optical fibre cable . 83
9.4.4 Single-mode optical fibre cables . 84
10 Connecting hardware requirements . 85
10.1 General requirements . 85
– 4 – 11801 © ISO/IEC:2002+A1:2008
+A2:2010(E)
10.1.1 Applicability . 85
10.1.2 Location . 85
10.1.3 Design . 86
10.1.4 Operating environment . 86
10.1.5 Mounting . 86
10.1.6 Installation practices . 86
10.1.7 Marking and colour coding . 87
10.2 Connecting hardware for balanced cabling . 87
10.2.1 General requirements . 87
10.2.2 Performance marking . 87
10.2.3 Mechanical characteristics . 87
10.2.4 Electrical characteristics . 89
10.2.5 TO requirements . 100
10.2.6 Design considerations for installation . 102
10.3 Optical fibre connecting hardware .
...
ISO/IEC 11801
Edition 2.1 2008-05
INTERNATIONAL
STANDARD
Information technology –
Generic cabling for customer premises
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about ISO/IEC copyright or have an enquiry about obtaining additional rights to this
publication, please contact the address below or your local IEC member National Committee for further information.
IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
ISO/IEC 11801
Edition 2.1 2008-05
INTERNATIONAL
STANDARD
Information technology –
Generic cabling for customer premises
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
CC
ICS 35.200 ISBN 2-8318-9775-0
– 2 – 11801 © ISO/IEC:2002+A1:2008(E)
CONTENTS
FOREWORD.10
INTRODUCTION.12
1 Scope.14
2 Normative references .14
3 Terms, definitions, abbreviations and symbols.18
3.1 Terms and definitions .18
3.2 Abbreviations .27
3.3 Symbols .28
4 Conformance.30
5 Structure of the generic cabling system .30
5.1 General .30
5.2 Functional elements .31
5.3 Cabling subsystems .31
5.3.1 General .31
5.3.2 Campus backbone cabling subsystem .32
5.3.3 Building backbone cabling subsystem.32
5.3.4 Horizontal cabling subsystem .32
5.3.5 Design objectives .33
5.4 Interconnection of subsystems .33
5.4.1 General .33
5.4.2 Centralised cabling architecture.34
5.5 Accommodation of functional elements.34
5.6 Interfaces .35
5.6.1 Equipment interfaces and test interfaces .35
5.6.2 Channel and permanent link .36
5.6.3 External network interface .36
5.7 Dimensioning and configuring.36
5.7.1 Distributors.36
5.7.2 Cables.39
5.7.3 Work area cords and equipment cords.39
5.7.4 Patch cords and jumpers .39
5.7.5 Telecommunications outlet (TO) .40
5.7.6 Consolidation point.41
5.7.7 Telecommunications rooms and equipment rooms.41
5.7.8 Building entrance facilities.41
5.7.9 External services cabling.41
6 Performance of balanced cabling.42
6.1 General .42
6.2 Layout .43
6.3 Classification of balanced cabling.44
6.4 Balanced cabling performance .44
6.4.1 General .44
6.4.2 Return loss .44
6.4.3 Insertion loss/attenuation.46
11801 © ISO/IEC:2002+A1:2008(E) – 3 –
6.4.4 NEXT .47
6.4.5 Attenuation to crosstalk ratio at the near-end (ACR-N) .50
6.4.6 Attenuation to crosstalk ratio at the far-end (ACR-F).51
6.4.7 Direct current (d.c.) loop resistance .54
6.4.8 Direct current (d.c.) resistance unbalance.55
6.4.9 Current carrying capacity.55
6.4.10 Dielectric withstand .55
6.4.11 Power capacity .55
6.4.12 Propagation delay .55
6.4.13 Delay skew.56
6.4.14 Unbalance attenuation and coupling attenuation.56
6.4.15 Alien crosstalk .58
7 Reference implementations for balanced cabling .64
7.1 General .64
7.2 Balanced cabling.64
7.2.1 General .64
7.2.2 Horizontal cabling.65
7.2.3 Backbone cabling .68
8 Performance of optical fibre cabling.69
8.1 General .69
8.2 Component choice.70
8.3 Channel attenuation .70
8.4 Channel topology .70
8.5 Propagation delay .72
9 Cable requirements .72
9.1 General .72
9.2 Balanced cables .72
9.2.1 Basic performance requirements .72
9.2.2 Additional requirements .73
9.2.3 Additional performance requirements for flexible cables .74
9.3 Additional crosstalk considerations for cable sharing in balanced cables .74
9.3.1 General .74
9.3.2 Power summation in backbone cables .74
9.3.3 Hybrid, multi-unit and cables connected to more than one TO .74
9.4 Optical fibre cables.75
9.4.1 Optical fibre types .75
9.4.2 Generic performance requirements.75
9.4.3 Multimode optical fibre cable .75
9.4.4 Single-mode optical fibre cables .76
10 Connecting hardware requirements .76
10.1 General requirements.76
10.1.1 Applicability .76
10.1.2 Location .77
10.1.3 Design.77
10.1.4 Operating environment .77
10.1.5 Mounting .77
10.1.6 Installation practices.77
10.1.7 Marking and colour coding.78
– 4 – 11801 © ISO/IEC:2002+A1:2008(E)
10.2 Connecting hardware for balanced cabling .78
10.2.1 General requirements .78
10.2.2 Performance marking .78
10.2.3 Mechanical characteristics.78
10.2.4 Electrical characteristics.80
10.2.5 Telecommunications outlet requirements .86
10.2.6 Design considerations for installation .87
10.3 Optical fibre connecting hardware .88
10.3.1 General requirements .88
10.3.2 Marking and colour coding.88
10.3.3 Mechanical and optical characteristics.88
10.3.4 Telecommunicat
...
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