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BS EN 50173-1:2018

BS EN 50173-1:2018

$215.11

Information technology. Generic cabling systems – General requirements

Published By Publication Date Number of Pages
BSI 2018 184
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This European Standard specifies:

  1. the structure and configuration of the backbone cabling subsystems of generic cabling systems within the types of premises and/or spaces defined by the other standards in the EN 50173 series;

  2. channel transmission and environmental performance requirements in support of the standards in the EN 50173 series (which have taken into account requirements specified in application standards listed in Annex F);

  3. link performance requirements in support of the standards in the EN 50173 series;

  4. backbone cabling reference implementations in support of the standards in the EN 50173 series;

  5. component performance requirements in support of the standards in the EN 50173 series;

  6. test procedures to verify conformance to the cabling transmission performance requirements of the standards in the EN 50173 series.

Safety and electromagnetic compatibility (EMC) requirements are outside the scope of this European Standard and are covered by other standards and regulations. However, information given in this European Standard can be of assistance in meeting these standards and regulations.

1.2 Conformance

This European Standard does not contain specific conformance requirements. The other standards in the EN 50173 series incorporate the requirements of this standard as part of their individual conformance requirements.

PDF Catalog

PDF Pages PDF Title
2 undefined
17 1 Scope and conformance
1.1 Scope
1.2 Conformance
18 2 Normative references
24 3 Terms, definitions and abbreviations
3.1 Terms and definitions
33 3.2 Abbreviations
35 3.3 Symbols
4 Structure of generic backbone cabling
4.1 General
36 4.2 Functional elements
4.3 Structure and hierarchy
38 4.4 Cabling subsystems
4.4.1 Campus backbone cabling subsystem
4.4.2 Building backbone cabling subsystem
4.5 Design objectives
4.5.1 General
39 4.5.2 Backbone cabling
4.6 Accommodation of functional elements
4.6.1 Distributors
4.6.2 Cables
4.7 Interfaces
4.7.1 Equipment interfaces and test interfaces
40 4.7.2 Channels and links
4.7.2.1 Channels
4.7.2.2 Links
4.8 Dimensioning and configuring
4.8.1 External network interface
4.8.2 Building entrance facilities
41 5 Channel performance
5.1 Environmental performance
5.1.1 General
5.1.2 Environmental classifications
43 5.2 Transmission performance
5.2.1 General
5.2.2 Balanced cabling channel performance
5.2.2.1 General
44 5.2.2.2 Return loss
46 5.2.2.3 Insertion loss
48 5.2.2.4 Near-end crosstalk loss
52 5.2.2.5 Attenuation to crosstalk ratio at the near-end
54 5.2.2.6 Attenuation to crosstalk ratio at the far-end
58 5.2.2.7 Direct current loop resistance
59 5.2.2.8 Direct current resistance unbalance
60 5.2.2.9 Direct current power feeding
5.2.2.10 Dielectric withstand
5.2.2.11 Propagation delay
62 5.2.2.12 Delay skew
5.2.2.13 Transverse conversion loss
65 5.2.2.14 Equal level transverse conversion transfer loss
68 5.2.2.15 Coupling attenuation
69 5.2.2.16 Alien near-end crosstalk loss
72 5.2.2.17 Alien attenuation to crosstalk ratio at the far-end
74 5.2.3 Coaxial cabling channel performance
5.2.3.1 General
5.2.3.2 Return loss
75 5.2.3.3 Insertion loss
5.2.3.4 Direct current loop resistance
5.2.3.5 Direct current power feeding
76 5.2.3.6 Operating voltage
5.2.3.7 Screening attenuation
5.2.4 Optical fibre cabling channel performance
5.2.4.1 General
5.2.4.2 Channel attenuation
5.2.4.3 Channel length and propagation delay
77 5.2.4.4 Delay skew
6 Reference implementations for backbone cabling
6.1 General
6.2 Balanced cabling
6.2.1 General
6.2.2 Component choice
6.2.3 Dimensions
80 6.3 Coaxial cabling
6.4 Optical fibre cabling
6.4.1 General
6.4.2 Component choice
6.4.3 Dimensions
7 Cable requirements
7.1 General
81 7.2 Operating environment
7.3 Balanced cables of Categories 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2
7.3.1 Basic performance requirements
82 7.3.2 Additional performance requirements
7.3.2.1 Balanced cables of Categories 5, 6, 6A, 7, 7A, 8.1 and 8.2
7.3.2.2 Balanced cables of Category BCT-B
7.3.3 Hybrid and multi-unit cables
83 7.4 Coaxial cables
7.5 Optical fibre cables
7.5.1 General
84 7.5.2 Cabled multimode optical fibres of Category OM3, OM4 and OM5
7.5.3 Cabled single-mode optical fibres of Categories OS1a and OS2
85 7.5.4 Propagation delay
7.5.5 Cord cables
8 Connecting hardware requirements
8.1 General requirements
8.1.1 Overview
86 8.1.2 Location
8.1.3 Design
8.1.4 Operating environment
8.1.4.1 General
8.1.4.2 Connecting hardware for balanced cabling
87 8.1.4.3 Connecting hardware for coaxial cabling
88 8.1.4.4 Connecting hardware for optical fibre cabling
89 8.1.5 Mounting
8.1.6 Marking and colour coding
90 8.2 Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 and connecting hardware for balanced cabling
8.2.1 General requirements
8.2.2 Performance marking
8.2.3 Mechanical characteristics
92 8.2.4 Electrical characteristics
8.2.5 Connecting hardware in accordance with EN 60603-7 series
94 8.2.6 Connecting hardware in accordance with EN 61076-3-104
95 8.2.7 Connecting hardware in accordance with EN 61076-2-101 (Type D, 4 poles)
8.2.8 Connecting hardware in accordance with EN 61076-2-109 (Type X, 8 poles)
96 8.3 Category BCT-C connecting hardware for coaxial cabling
8.3.1 General requirements
8.3.2 Electrical characteristics
8.3.2.1 Return loss
97 8.3.2.2 Insertion loss
8.3.2.3 Current carrying capacity
8.3.2.4 Screening attenuation
8.3.3 Connecting hardware in accordance with EN 61169-2 (Type 9,52) and EN 61169-24 (Type F)
98 8.4 Optical fibre connecting hardware
8.4.1 General requirements
8.4.2 Marking and colour coding
8.4.3 Mechanical and optical characteristics
99 8.4.4 Interface configuration for two optical fibres
100 8.4.5 Interface configuration for 12 and 24 optical fibres
101 9 Requirements for cords and jumpers
9.1 General
9.2 Operating environment
9.3 Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 cords for balanced cabling
9.3.1 General
102 9.3.2 Cable insertion loss
9.3.3 Identification
9.3.4 Environmental performance requirements
9.3.5 Electrical performance requirements
9.3.5.1 Return loss
104 9.3.5.2 Near-end crosstalk loss
107 9.4 Coaxial cords
9.5 Optical fibre cords
9.5.1 General requirements
9.5.2 Identification
9.5.3 Environmental performance requirements
109 Annex A (normative)Link performance limits
A.1 General
A.2 Balanced cabling
A.2.1 General
110 A.2.2 Return loss
111 A.2.3 Insertion loss
112 A.2.4 Near-end crosstalk loss
A.2.4.1 Pair-to-pair near-end crosstalk loss
114 A.2.4.2 Power sum near-end crosstalk loss
115 A.2.5 Attenuation to crosstalk loss ratio at the near-end
A.2.5.1 Pair-to-pair attenuation to crosstalk loss ratio at the near-end
A.2.5.2 Power sum attenuation to crosstalk loss ratio at the near-end
A.2.6 Attenuation to crosstalk loss ratio at the far-end
A.2.6.1 Pair-to-pair attenuation to crosstalk loss ratio at the far-end
116 A.2.6.2 Power sum attenuation to crosstalk loss ratio at the far-end
118 A.2.7 Direct current loop resistance
A.2.8 Direct current resistance unbalance
119 A.2.9 Propagation delay
120 A.2.10 Delay skew
121 A.2.11 Transverse conversion loss
A.2.12 Equal level transverse conversion transfer loss (ELTCTL)
A.2.13 Coupling attenuation
122 A.2.14 Alien near-end crosstalk
A.2.14.1 Power sum alien near-end crosstalk loss
A.2.14.2 Average power sum alien near-end crosstalk loss
A.2.15 Alien attenuation to crosstalk ratio at the far end
A.2.15.1 Power sum alien attenuation to crosstalk ratio at the far end
A.2.15.2 Average power sum alien attenuation to crosstalk ratio at the far end
A.3 Coaxial cabling
A.3.1 Return loss
A.3.2 Insertion loss
A.3.3 Direct current loop resistance
123 A.3.4 Direct current carrying capacity
A.3.5 Operating voltage
A.3.6 Screening attenuation
A.4 Optical fibre cabling
124 Annex B (informative)Permanent link performance limits for maximum implementations(balanced and coaxial cabling)
B.1 Balanced cabling
B.1.1 General
B.1.2 Performance limits
B.1.2.1 Return loss
125 B.1.2.2 Insertion loss
B.1.2.3 Pair-to-pair near-end crosstalk loss
126 B.1.2.4 Power sum near-end crosstalk loss
B.1.2.5 Pair-to-pair attenuation to near-end crosstalk ratio
127 B.1.2.6 Power sum attenuation to near-end crosstalk ratio
B.1.2.7 Pair-to-pair attenuation to far-end crosstalk ratio
128 B.1.2.8 Power sum attenuation to far-end crosstalk ratio
B.1.2.9 Direct current loop resistance
B.1.2.10 Direct current resistance unbalance
129 B.1.2.11 Propagation delay
B.1.2.12 Delay skew
B.1.2.13 Transverse conversion loss
130 B.1.2.14 Equal level transverse conversion transfer loss
B.1.2.15 Coupling attenuation
B.1.2.16 Power sum alien attenuation to near-end crosstalk ratio
B.1.2.17 Average power sum attenuation to near-end crosstalk ratio
B.1.2.18 Power sum alien attenuation to far-end crosstalk ratio
B.1.2.19 Average power sum alien attenuation to far-end crosstalk ratio
B.2 Coaxial cabling
B.2.1 General
B.2.2 Insertion loss
B.2.3 Direct current loop resistance
131 Annex C (informative)Information on all-silica optical fibres in the previous edition
C.1 Cabled singlemode optical fibres of Category OS1
C.2 Cabled multimode optical fibres of Category OM1 and OM2
C.2.1 Cable specification
C.2.2 Application support
134 Annex D (normative)Electrical, mechanical and environmental requirements of balanced connecting hardware
D.1 General
D.2 Electrical performance of Category 5, 6, 6A, 7, 7A, BCT-B, 8.1 and 8.2 connecting hardware
D.2.1 Return loss
135 D.2.2 Insertion loss
136 D.2.3 Near-end crosstalk loss
137 D.2.4 Power sum near-end crosstalk loss
138 D.2.5 Far-end crosstalk loss
139 D.2.6 Power sum far-end crosstalk loss
140 D.2.7 Input to output resistance
D.2.8 Input to output resistance unbalance
141 D.2.9 Current carrying capacity
D.2.10 Propagation delay
142 D.2.11 Delay skew
D.2.12 Unbalance attenuation
D.2.12.1 Transverse conversion loss
143 D.2.12.2 Transverse conversion transfer loss
144 D.2.13 Transfer impedance
145 D.2.14 Coupling attenuation
146 D.2.15 Dielectric performance
D.2.15.1 Insulation resistance
147 D.2.15.2 Voltage proof
D.2.16 Power sum alien near-end crosstalk loss
148 D.2.17 Power sum alien far-end crosstalk loss
149 D.3 Mechanical and environmental performance
D.3.1 General
D.3.2 Solderless connections
150 D.3.3 Free and fixed connectors (modular plugs and jacks)
151 D.3.4 Other connecting hardware
153 Annex E (informative)Electromagnetic characteristics of balanced cabling
154 Annex F (informative)Supported applications
F.1 Supported applications for balanced cabling
158 F.2 Supported applications for coaxial cabling
159 F.3 Supported applications for optical fibre cabling
F.3.1 Generic applications
162 F.3.2 Data centre (computer room space) applications
164 F.3.3 Industrial space applications
165 Annex G (informative)Introduction to environmental classification
G.1 General
G.2 The application of environmental classification
G.2.1 MICE
G.2.2 The channel environment
166 G.2.3 Component selection
G.3 The MICE system
172 G.4 Guidance with respect to environmental classification
G.4.1 Mechanical environment
G.4.2 Ingress protection environment
G.4.3 Climatic and chemical environment
G.4.4 Electromagnetic environment
174 Annex H (informative)Acronyms for balanced cables
176 Annex I (normative)Testing procedures to assess conformance with EN 50173 standards
I.1 General
I.2 Channel and link performance testing
I.2.1 General
177 I.2.2 Testing balanced cabling channels and links
I.2.3 Testing optical fibre cabling channels and links
I.2.4 Channel and link test schedules

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BS EN 50173-1:2018
$215.11