ISO/IEC 11801:1995
(Main)Information technology — Generic cabling for customer premises
Information technology — Generic cabling for customer premises
Specifies generic cabling for use within commercial premises, which may comprise single or multiple buildings on a campus. Specifies: the structure and miniumum configuration for generic cabling; implementation requirements; performance requirements for individual cabling links and conformance requirements and verification procedures.
Technologies de l'information — Câblage générique des locaux du client
General Information
Relations
Standards Content (Sample)
ISOAEC
INTERNATIONAL
STANDARD .
First edition
1995-05-3 1
Corrected and reprinted
1995-07-l 5
Information technology -
Generic cabling for customer premises
Technologies de /‘information -
Cab/age g&Grique des locaux d’utiiisateurs
ISOAEC 11801:1995(E)
Contents
. . .
VIII
Foreword
~mmmmmmmmmmmmmmmmmmmmmmmammmmmmmmmm~~mmmmmmmmm~~mmmmmmmmmmmmmmmmmmmmmm~mmmmmmmm~mmmmommmmmm~mmmm~mmmm~mmmmmm~9~~*~~~m~mmm~~m~mmmamm~mmmmmm~mm~
1 Scope mmm*mm****m*mm***m***m*aaaaammmammmaaaaaaaaamammmmmmama*****mm**************************m****mm************************m**************mm****
mmmmomommmmmmommmmmmmmmmmmmmmmmommmmmmmmmmmmmmmmmmmmmmmm~mmm~mmmm8~mmmmm~mmmmmmmmmmmmmmmmmmaemmmmmmmmmmmmmmmmmmmmm
2 Normative references
3 Definitions and abbreviations mmmaaa*mmmmamaaaaammmaaaaaamamm********mm******mmm*mm*mm******m**********mmm*****m**m*********m**maa
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*.
3.1 Definitions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Abbreviations
4 Conformance mm8mmmmmmmmmmmmmmmmmmmmmmmmmwom*mmmmmmmmmmmmammmommommommmmmmmmmmmmm~mmmmmomommmmmmmmmmmmmmmmmmmmmmmmmmmmmmommmmmmmmmmmmmmmmmmmm
mmmmmmmmmmmwmm~mmmmmmmmmmmmmmmmmmmmmmmammmmommmmmmmmmmmmmmmmmmmmmommmmmmmmmmmmmmmmm
5 Structure of the generic cabling system
5.1 Structure .
51.1 Functional elements .
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51.2 Cabling subsystems
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51.3 Campus backbone cabling subsystem
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5.1.4 Building backbone cabling subsystem
IO
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5.1.5 Horizontal cabling subsystem
5.1.6 Work area cabling .
5.2 Overall structure .
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5.3 Location of distributors
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5.4 Interfaces to the generic cabling system
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5.4.1 Public network interface
5.5 Dimensioning and configuring .
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5.5.1 Floor distributor
................................. 15
5.5.2 Preferred cable types for pre-cabling and recommended use
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5.5.3 Telecommunications outlets
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5.5.4 Telecommunications closets and equipment rooms
5.5.5 Building entrance facilities .
5.6 Electromagnetic compatibility .
5.7 Earthing and bonding .
6 Implementation mmmmmmm0mmmmmmmmmmmmmmommommmmmmmommmmmmmmmmmmmwmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmommmmmmmmmmmmmmmmmmommmmmmmmmmmmmmmmmmmm
6.1 Horizontal cabling .
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6.1.1 Horizontal distances
6.1.2 Choosing cable types .
6.1.3 Configuring TOs .
6.2 Backbone cabling .
6.2.1 Physical topology .
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6.2.2 Choosing cable types
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6.2.3 Backbone cabling distances
@ ISO/lEC 1995
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or
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lSO/lEC Copyright Office 0 Case Postale 131 0 CH-1211 Genbe 20 l Switmland
Printed in Switzerland
ii
ISOAEC 11801:1995(E)
Link specifications
7 **m*****aa*~.~aaammaaaaaaaaaaaaa*aa88888aaaam**m*****mmaamaa8****mm**aa**aamam************************************* 23
7.1 Classification of applications and links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.1 Application classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*.*=. 24
.
7.1.2 Link classification ,.*=*=~. 24’
7.2 Balanced cabling links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-.
7.2.1 Characteristic impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2.2 Return loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2.3 Attenuation *. 26
7.2.4 Near-end crosstalk loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.5 Attenuation to crosstalk loss ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.6 DC resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2.7 Propagation delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2.8 Longitudinal to differential conversion loss (balance)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2.9 Transfer impedance of shield . 29
7.3 Optical fibre links . 30
7.3.1 Optical attenuation . 30
7.3.2 Multimode modal bandwidth . 31
7.3.3 Return loss . 31
7.3.4 Propagation delay . 31
8 Cable requirements
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8.1 General requirements for 100 Sz and 120 Sz balanced cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 33
8.1 .l Additional requirements for 100 f2 balanced
cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.1.2 Additional requirements for 120 a balanced cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 General requirements for 150 Sz balanced cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.3 Additional crosstalk considerations for balanced cables
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.3.1 Power summation
. . . . . . . . . . . . . . . . . . . . . . .~.~. 39
8.3.2 Hybrid and multi-unit cables and cables connected to multiple TOs.
...................... 39
8.4 Multimode optical fibre cables . 40
8.5 Singlemode optical fibre cables
............................................................................................. 40
Connecting hardware requirements maa*aamm*m*m*m****m*m*mm*mm*mmm~**mmmmmm**m****mmmmmm******mmmmmm*mm*******mmmmmm***m*** 41
9.1 General requirements .
9.1.1 Location .
9.1.2 Design .
9.1.3 Operating environment
............................................................................................. 42
9.1.4 Mounting
................................................................................................................... 42
9.1.5 Cross-connect jumpers and patch cords
.................................................................. 42
9.1.6 Installation practices . 43
9.1.7 Marking and wlour coding .
9.2 Connecting hardware for 100 In and 120 Sz cabling .
9.2.1 General requirements .
9.2.2 Performance marking .
9.2.3 Mechanical characteristics .
9.2.4 Electrical characteristics . 45
9.2.5 Telecommunications outlet requirements . 46
9.2.6 Installation practices .
9.3 Connecting hardware for 150 Sz cabling . 47
9.3.1 General requirements . 47
9.3.2 Performance marking . 47
ISOIIEC 11801:1995(E)
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9.3.3 Mechanical characteristics
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9.3.4 Electrical characteristics
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9.3.5 Telecommunications outlet requirements
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9.3.6 Installation practices
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9.4 Optical fibre connecting hardware
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9.4.1 General requirements
....................................................................................... 49
9.4.2 Marking and wlour coding
..................................................................... 49
9.4.3 Mechanical and optical characteristics
................................................................. 50
9.4.4 Telecommunications outlet requirements
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9.4.5 Cross-connect jumpers and patch cords
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9.4.6 Optical fibre connectivity
10 mmmmaaaaaa*mmaammmmammmm*****m*mmmmm*aaaammama*a*****m**m*mmmmm******mm*m***mm*m**mm*m*m***m*m**m*m***m*********m*mm
Shielding practices
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10.1 EMC
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10.2 G
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Questions, Comments and Discussion
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