BS ISO/IEC 11801-5:2017:2018 Edition
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Information technology. Generic cabling for customer premises – Data centres
Published By | Publication Date | Number of Pages |
BSI | 2018 | 62 |
This part of ISO/IEC 11801 specifies generic cabling within and to the computer room spaces of data centre premises, or data centre spaces within other types of buildings. It covers balanced cabling and optical fibre cabling.
This document is optimized for premises in which the maximum distance over which telecommunications services can be distributed is 2 000 m. The principles of this document can also be applied to larger installations.
Cabling specified by this document supports a wide range of services including voice, data and video that can also incorporate the supply of power.
This document specifies directly or via reference to ISO/IEC 11801-1
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the structure and minimum configurations for generic cabling within data centres,
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the interfaces at the equipment outlet (EO) and the external network interface (ENI),
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the performance requirements for cabling links and channels,
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the implementation requirements and options,
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the performance requirements for cabling components,
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the conformance requirements and verification procedures.
Safety (e.g. electrical safety and protection, fire) and electromagnetic compatibility (EMC) requirements are outside the scope of this document, and are covered by other standards and by regulations. However, information given by this document can be of assistance.
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
4 | CONTENTS |
8 | FOREWORD |
10 | INTRODUCTION Figures Figure 1 – Relationships between the generic cabling documents produced by ISO/IEC JTC 1/SC 25 |
12 | 1 Scope 2 Normative references |
13 | 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions |
15 | 3.2 Abbreviated terms 4 Conformance |
16 | 5 Structure of the generic cabling system 5.1 General 5.2 Functional elements 5.3 General structure and hierarchy |
17 | 5.4 Cabling subsystems 5.4.1 General Figure 2 – Structure of generic cabling within a data centre Figure 3 – Hierarchical structure of generic cabling within a data centre |
18 | 5.4.2 Network access cabling subsystem 5.4.3 Main distribution cabling subsystem 5.4.4 Intermediate distribution cabling subsystem 5.4.5 Zone distribution cabling subsystem |
19 | 5.4.6 Design objectives 5.5 Accommodation of functional elements 5.6 Interfaces 5.6.1 Equipment interfaces and test interfaces Figure 4 – Example of accommodation of functional elements |
20 | 5.6.2 Channels and links |
21 | 5.7 Dimensioning and configuring 5.7.1 Distributors Figure 5 – Test and equipment interfaces |
22 | 5.7.2 Redundancy |
23 | 5.7.3 External network interface Figure 6 – Connection of functional elements providing redundancy |
24 | 5.7.4 Cables 5.7.5 Equipment cords 5.7.6 Patch cords and jumpers 5.7.7 Equipment outlets Figure 7 – Examples of external service cabling connections to the ENI |
25 | 5.7.8 LDP 5.7.9 Building entrance facilities 5.8 Earthing and equipotential bonding 6 Channel performance requirements 6.1 General |
26 | Figure 8 – Example of a channel with four connections |
27 | 6.2 Environmental performance 6.3 Transmission performance 6.3.1 General 6.3.2 Balanced cabling 6.3.3 Optical fibre cabling Figure 9 – Example of a system showing the location of cabling interfaces |
28 | 7 Link performance requirements 7.1 General 7.2 Balanced cabling 7.3 Optical fibre cabling 8 Reference implementations 8.1 General 8.2 Balanced cabling 8.2.1 Assumptions |
29 | 8.2.2 Zone distribution cabling |
30 | Figure 10 – Zone distribution cabling models |
31 | Tables Table 1 – Zone distribution cabling – length assumptions for balanced cabling using Classes EA to FA |
32 | 8.2.3 Cabling between distributors Table 2 – Zone distribution cabling – length assumptions for balanced cabling using Classes I and II Table 3 – Zone distribution channel length equations for Classes |
33 | Figure 11 – Cabling model between distributors using Class EA to FA Figure 12 – Cabling model between distributors using Class I and II Table 4 – Cabling between distributors – length assumptions for balanced cabling using Classes EA to FA |
34 | Table 5 – Cabling between distributors – length assumptions for balanced cabling using Classes I and II Table 6 – Length equations for cabling between distributors |
35 | 8.2.4 Network access cabling |
36 | Figure 13 – Network access cabling models |
37 | 8.3 Optical fibre cabling 8.3.1 General 8.3.2 Component choice Table 7 – Network access cabling channel equations |
38 | 8.3.3 Dimensions 9 Cable requirements 9.1 General 9.2 Balanced cables 9.3 Optical fibre cables 10 Connecting hardware requirements 10.1 General requirements 10.1.1 Overview 10.1.2 Location |
39 | 10.1.3 Design 10.1.4 Operating environment 10.1.5 Mounting 10.1.6 Installation practices 10.1.7 Marking and colour coding 10.2 Connecting hardware for balanced cabling 10.2.1 General requirements 10.2.2 Performance marking 10.2.3 Mechanical characteristics Table 8 – Connecting hardware of the type used at the EO |
40 | 10.3 Connecting hardware for optical fibre cabling 10.3.1 General requirements 10.3.2 ENI requirements 10.3.3 EO requirements |
41 | 10.3.4 Optical fibre assignments at the EO 10.3.5 Connecting hardware at other locations 11 Requirements for cords and jumpers 11.1 Jumpers 11.2 Balanced cords 11.3 Optical fibre cords |
42 | Annex A (normative) Combination of balanced cabling links A.1 General A.2 Requirements Figure A.1 – Examples of combination of different links |
43 | Annex B (informative) Usage of high density connecting hardware within optical fibre cabling B.1 General B.2 Use cases for high density connecting hardware |
44 | Figure B.1 – Examples of high density connecting hardware within main distribution cabling and intermediate distribution cabling |
46 | Figure B.2 – Examples of high density connecting hardware at the LDP and EO within zone distribution cabling |
47 | Annex C (informative) Examples of structures in accordance with ISO/IEC 11801-5 C.1 General Figure C.1 – Key for Figures C.2 through C.9 |
48 | C.2 Data centre minimum configuration Figure C.2 – Example of a minimum configuration |
49 | C.3 End of Row concept Figure C.3 – Example of End of Row configuration |
50 | C.4 Middle of Row concept Figure C.4 – Example of Middle of Row configuration |
51 | C.5 Top of Rack concept Figure C.5 – Example of Top of Rack configuration |
52 | C.6 End of Row and Middle of Row concept with redundancy Figure C.6 – Example of End of Row configuration with redundancy |
53 | C.7 Top of Rack concept with redundancy Figure C.7 – Example of Top of Rack configuration with redundancy |
54 | C.8 End of Row concept with full redundancy Figure C.8 – Example of End of Row configuration with full redundancy |
55 | C.9 Top of Rack concept with redundancy Figure C.9 – Example of Top of Rack configuration with full redundancy |
56 | Annex D (informative) Examples of networking architectures D.1 General D.2 Data centre fabric fat-tree Figure D.1 – Fat-tree example |
57 | D.3 Data centre fabric full-mesh D.4 Data centre fabric interconnected meshes Figure D.2 – Full-mesh example |
58 | D.5 Data centre fabric centralized switch Figure D.3 – Interconnected mesh example Figure D.4 – Centralized switch example |
59 | D.6 Data centre fabric virtual switch Figure D.5 – Virtual switch example |
60 | Bibliography |