ISO/IEC 11801:2000
(Main)Information technology — Generic cabling for customer premises
Information technology — Generic cabling for customer premises
Technologies de l'information — Câblage générique des locaux d'utilisateurs
General Information
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD
11801
Edition 1.2
2000-01
Edition 1:1995 consolidated with amendments 1:1999 and 2:1999
Information technology –
Generic cabling for customer premises
Technologies de l'information –
Câblage générique des locaux d'utilisateurs
Reference number
ISO/IEC 11801:1995+A1:1999+A2:1999(E)
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INTERNATIONAL ISO/IEC
STANDARD
11801
Edition 1.2
2000-01
Edition 1:1995 consolidated with amendments 1:1999 and 2:1999
Information technology –
Generic cabling for customer premises
Technologies de l'information –
Câblage générique des locaux d'utilisateurs
ISO/IEC 2000
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• • •
PRICE CODE
XA
For price, see current catalogue
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– ii – ISO/IEC 11801:1995
+A1:1999+A2:1999(E)
CONTENTS
Page
FOREWORD .ix
INTRODUCTION .x
Clause
1 Scope . 1
2 Normative references . 2
3 Definitions and abbreviations. 4
3.1 Definitions. 4
3.2 Abbreviations . 8
4 Conformance . 9
5 Structure of the generic cabling system . 10
5.1 Structure. 10
5.1.1 Functional elements . 10
5.1.2 Cabling subsystems . 10
5.1.3 Campus backbone cabling subsystem . 11
5.1.4 Building backbone cabling subsystem. 11
5.1.5 Horizontal cabling subsystem . 11
5.1.6 Work area cabling . 11
5.2 Overall structure . 12
5.3 Location of distributors . 14
5.4 Interfaces to the generic cabling system . 15
5.4.1 Public network interface . 15
5.5 Dimensioning and configuring. 16
5.5.1 Floor distributor. 16
5.5.2 Preferred cable types for pre-cabling and recommended use . 16
5.5.3 Telecommunications outlets . 16
5.5.4 Telecommunications closets and equipment rooms. 17
5.5.5 Building entrance facilities . 17
5.6 Electromagnetic compatibility . 17
5.7 Earthing and bonding . 17
6 Implementation . 18
6.1 Horizontal cabling . 19
6.1.1 Horizontal distances . 19
6.1.2 Choosing cable types . 20
6.1.3 Configuring TOs . 20
6.2 Backbone cabling. 21
6.2.1 Physical topology . 21
6.2.2 Choosing cable types . 22
6.2.3 Backbone cabling distances . 22
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ISO/IEC 11801:1995 – iii –
+A1:1999+A2:1999(E)
7 Permanent link and channel specifications. 23
7.1 Permanent links and channels. 23
7.1.1 General. 23
7.1.2 Permanent links . 24
7.1.3 Channels. 24
7.2 Classification of applications, links and channels . 26
7.2.1 Application classification . 26
7.2.2 Link and channel classification . 27
7.3 Balanced cabling permanent links and channels . 28
7.3.1 General. 28
7.3.2 Nominal impedance. 28
7.3.3 Return loss. 28
7.3.4 Attenuation (insertion loss) . 29
7.3.5 NEXT loss. 30
7.3.6 Attenuation of crosstalk loss ratio . 31
7.3.7 ELFEXT . 33
7.3.8 DC loop resistance . 35
7.3.9 Propagation delay . 35
7.3.10 Delay skew. 36
7.3.11 Longitudinal to differential conversion loss (balance) . 36
7.3.12 Transfer impedance of shield . 37
7.4 Optical fibre permanent links/channels . 37
7.4.1 General. 37
7.4.2 Optical attenuation . 37
7.4.3 Multimode modal bandwidth . 38
7.4.4 Return loss. 38
7.4.5 Propagation delay . 38
8 Cable requirements . 39
8.1 General requirements for 100 Ω and 120 Ω balanced cable . 39
8.1.1 Additional requirements for 100 Ω balanced cable . 41
8.1.2 Additional requirements for 120 Ω balanced cable . 42
8.2 General requirements for 150 Ω balanced cable . 42
8.3 Additional crosstalk considerations for balanced cables . 44
8.3.1 Power summation. 44
8.3.2 Hybrid and multi-unit cables and cables connected to multiple TOs. 44
8.4 Multimode optical fibre cables . 45
8.5 Singlemode optical fibre cables . 45
9 Connecting hardware requirements . 46
9.1 General requirements. 46
9.1.1 Location . 46
9.1.2 Design . 46
9.1.3 Operating environment . 47
9.1.4 Mounting . 47
9.1.5 Cross-connect jumpers and patch cords . 47
9.1.6 Installation practices. 47
9.1.7 Marking and colour coding. 48
9.2 Connecting hardware for 100 Ω and 120 Ω cabling . 48
9.2.1 General requirements. 48
9.2.2 Performance marking . 48
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– iv – ISO/IEC 11801:1995
+A1:1999+A2:1999(E)
9.2.3 Mechanical characteristics. 48
9.2.4 Electrical characteristics. 49
9.2.5 Telecommunications outlet requirements . 50
9.2.6 Installation practices. 51
9.3 Connecting hardware for 150 Ω cabling . 51
9.3.1 General requirements. 51
9.3.2 Performance marking . 51
9.3.3 Mechanical characteristics. 51
9.3.4 Electrical characteristics. 52
9.3.5 Telecommunications outlet requirements . 53
9.3.6 Installation practices. 53
9.4 Optical fibre connecting hardware . 54
9.4.1 General requirements. 54
9.4.2 Marking and colour coding. 54
9.4.3 Mechanical and optical characteristics. 54
9.4.4 Telecommunications outlet requirements . 55
9.4.5 Cross-connect jumpers and patch cords . 55
9.4.6 Optical fibre connectivity. 55
10 Shielding practices . 55
10.1 EMC . 55
10.2 Grounding. 56
11 Administration .56
11.1 Scope of administration. 56
11.2 Identifiers. 56
11.3 Records . 57
11.3.1 Documentation . 57
Annexes
A Test procedures . 58
A.1 Link performance testing . 58
A.1.1 Testing balanced cabling links . 58
A.1.2 Testing optical fibre cabling links . 60
A.1.3 Link tests . 62
A.2 Transmission testing of connecting hardware for balanced cabling. 62
A.2.1 Purpose and scope. 63
A.2.2 Applicability. 63
A.2.3 Test parameters. 64
A.2.4 Transmission testing of connecting hardware for balanced cables. 64
A.3 Termination procedure and set-up verification for modular jack and plug testing . 67
A.3.1 Test plug termination. 68
A.3.2 Balun and test plug qualification . 69
A.3.3 Typical TO measurement procedure . 70
B Reliability testing of connecting hardware for balanced cabling . 73
B.1 Introduction. 73
B.2 Contact resistance measurement . 74
B.3 Insulation resistance . 74
B.4 Durability . 74
B.5 Vibration . 74
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ISO/IEC 11801:1995 – v –
+A1:1999+A2:1999(E)
B.6 Stress relaxation . 75
B.7 Thermal shock . 75
B.8 Humidity/temperature cycle . 75
B.9 Corrosion testing. 76
C Requirements for flexible 100 Ω, 120 Ω and 150 Ω balanced cables. 77
C.1 General requirements. 77
C.2 Additional requirements for 150 Ω flexible cables. 77
D Topology. 79
D.1 Common topologies . 79
D.1.1 Network topology. 79
D.2 Configurations. 80
D.3 Application of the structured framework. 81
E Acronyms for balanced cables . 83
F Tutorial on link performance . 84
F.1 Balanced cable transmission . 84
F.1.1 Link parameters . 84
F.1.2 Link parameter values . 86
F.2 Optical cabling . 86
G Supported applications . 87
H Fibre optic connectivity planning guide. 91
H.1 Introduction. 91
H.2 General recommendations . 91
H.3 Connectivity options at the TO. 92
H.3.1 Duplex SC connectivity configuration . 92
H.3.2 Simplex BFOC/2,5 connectivity configuration . 93
H.3.3 Simplex BFOC/2,5-to-Duplex SC (hybrid) connectivity configuration. 93
H.4 Connectivity options at distributors . 93
J Bibliographical references . 94
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– vi – ISO/IEC 11801:1995
+A1:1999+A2:1999(E)
Figures
Page
1 Structure of generic cabling . 11
2 Inter-relationship of functional elements. 12
3 Example of the generic cabling system . 13
4 Typical accommodation of functional elements. 14
5 Potential interfaces to generic cabling. 15
6 Maximum cable lengths . 18
7 Examples of horizontal channel implementation . 19
8 Typical horizontal and work area cabling. 21
9 Backbone star topology . 22
10 Maximum backbone distances . 22
11 Permanent link . 24
12 Examples of cabling systems. 26
13 Eight position jack pin and pair grouping assignments. 50
A.1 Measurement configuration. 59
A.2 Calibration configuration . 59
A.3 Calibration. 61
A.4 Test set-up.61
A.5 Balun and test lead attenuation measurement. 67
A.6 Attenuation measurement using resistors. 67
A.7 Balanced test leads and jacket prior to untwisting . 68
A.8 Balanced test leads and jacket prior to plug termination . 69
A.9 Completed test plug. 69
A.10 Test plug qualification measurement. 70
A.11 Typical TO NEXT measurement set-up . 72
B.1 Reliability test programme . 73
D.1 Common topologies. 79
D.2 Accommodating star cabling topology in a bus pathway topology. 80
D.3 Star cabling topology . 80
D.4 Ring system topology realised from a star cabling topology . 80
D.5 Bus system topology realised from a star cabling topology . 81
D.6 Example of voice services over generic cabling. 81
D.7 Inter-relationship of functional elements in an installation with diversity
for protection against failure . 82
E.1 Cable types . 83
H.1 Duplex SC connectivity configuration . 92
H.2 Simplex BFOC/2,5 connectivity configuration . 93
H.3 Simplex BFOC/2,5-to-SC (hybrid) connectivity configuration. 93
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ISO/IEC 11801:1995 – vii –
+A1:1999+A2:1999(E)
Tables
Page
1 Recommended media for pre-cabling. 16
2 Channel lengths achievable with different categories and types of cabling . 27
3 Minimum return loss for permanent link . 28
4 Minimum return loss for a channel . 29
5 Maximum attenuation values for a permanent link . 29
6 Maximum attenuation values for a channel. 29
7 Minimum NEXT loss for a permanent link. 30
8 Minimum NEXT loss for a channel . 30
9 Minimum PSNEXT loss for a permanent link . 31
10 Minimum PSNEXT loss for channels. 31
11 Minimum ACR values for permanent link. 32
12 Minimum ACR values for channels. 32
13 Minimum PSACR values for permanent link . 33
14 Minimum PSACR values for channels . 33
15 Minimum ELFEXT values for permanent link . 33
16 Minimum ELFEXT values for channels. 34
17 Minimum Power Sum ELFEXT values for permanent link . 34
18 Minimum Power Sun ELFEXT values for channels . 35
19 Maximum d.c. loop resistance. 35
20 Maximum propagation delay for permanent link. 35
21 Maximum propagation delay for a channel . 36
22 Maximum delay skew for permanent link. 36
23 Maximum delay skew for a channel. 36
24 Longitudinal to differential conversion loss . 36
25 Attenuation of optical fibre cabling subsystems . 37
26 Wavelength windows for multimode optical fibre cabling . 38
27 Wavelength windows for singlemode optical fibre cabling. 38
28 Minimum optical modal bandwidth. 38
29 Minimum optical return loss . 38
30 Mechanical characteristics of 100 Ω and 120 Ω balanced cables . 39
31 Electrical characteristics of 100 Ω and 120 Ω balanced cables . 40
32 Additional electrical characteristics of 100 Ω balanced cables . 41
33 Additional electrical characteristics of 120 Ω balanced cables . 42
34 Mechanical characteristics of 150 Ω balanced cables. 42
35 Electrical characteristics of 150 Ω balanced cables . 43
36 Cable transmission performance parameters . 45
37 Mechanical characteristics of connecting hardware intended for use
with 100 Ω or 120 Ω cabling. 49
38 Electrical characteristics of connecting hardware intended for use
with 100 Ω or 120 Ω cabling. 50
39 Mechanical characteristics of connecting hardware intended for use
with 150 Ω cabling . 52
40 Electrical characteristics of connecting hardware intended for use
with 150 Ω cabling . 53
41 Mechanical and optical characteristics of optical fibre connecting hardware. 54
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– viii – ISO/IEC 11801:1995
+A1:1999+A2:1999(E)
A.1 Parameters for testing cabling links . 62
A.2 Test balun performance characteristics (1 MHz - 100 MHz). 65
A.3 Test plug NEXT loss requirements. 70
C.1 Different mechanical characteristics for 150 Ω flexible cables . 77
C.2 Different electrical characteristics for 150 Ω flexible cables . 78
E.1 Naming of balanced cables.
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