AS 11801.5:2019 pdf download.Information technology一Generic cabling for customer premises
Part 5: Data centres (ISO/IEC 11801-5:2017, MOD).
4 Conformance
For a cabling installation to conform to this document the following applies.
a) The configuration and structure shall conform to the requirements outlined in Clause 5.
b) Channels shall meet the requirements specified in Clause 6 when subjected to environment conditions, local to the channels (see NOTE below), as defined by the applicable environmental Class(es) of Clause 6.
This shall be achieved by one of the following: I) a channel design and implementation ensuring that the prescribed channel performance of Clause 6 is met; 2) attachment of appropriate components to a permanent link or CP link design meeting the prescribed performance class of Clause 7. Channel performance shall be ensured where a channel is created by adding more than one cord to either end of a link meeting the requirements of Clause 7;
3) for El environments, using the reference implementations of Clause 8 and compatible cabling components conforming to the requirements of Clauses 9, 10, and 11, that is based upon a statistical approach of performance modelling. c) The interfaces to the cabling at the EQ shall conform to the requirements of Clause 10 with respect to mating interfaces and performance when subjected to environment conditions, local to the connecting hardware (see NOTE below), as defined by the applicable environmental Class(es) of Clause 6. d) Connecting hardware at other places in the cabling structure shall meet the performance requirements specified in Clause 10 when subjected to environment conditions, local to the connecting hardware (see NOTE below), as defined by the applicable environmental Class(es) of Clause 6. e) The requirements of ISO/IEC 14763-2 and ISO/IEC 30129 shall be met.This document does not specify which tests and sampling levels should be adopted. Test methods to assess conformance with the channel and link requirements of Clause 6 and Clause 7， respectively， are specified in ISO/IEC 11801-1. The test parameters to be measured, the sampling levels and the treatment of measured results to be applied for particular installation shall be defined in the installation specification and quality plan for that installation prepared in accordance with ISO/IEC 14763-2. In the absence of the channel, the conformance of the link shall be used to verify conformance with ISOIIEC 11801-5. Specifications marked “ffs” are preliminary specifications, and are not required for conformance to this document. NOTE The applicable environmental classification of ISO/lEG 11801-1:2017, 6.2.2, local to the cabling or cabling component(s), is that of the environment immediately adjacent to the cabling or cabling component(s).
5 Structure of the generic cabling system
5.1 General
Clause 5 identifies the functional elements of generic cabling for data centres, describes how they are connected together to form subsystems and identifies the interfaces at which application-specific components are connected to the generic cabling. Examples of structures in accordance with Clause 5 can be found in Annex C. Applications listed in ISO/IEC 11801-1:2017, Annex E are supported by connecting active equipment at the external network interfaces, equipment outlets and the distributors. Examples of network architectures in accordance with Clause 5 can be found in Annex D.
5.4 Cabling subsystems
5.4.1 General
Although work area cords (equivalent to the TE cords of ISOIIEC 11801-1) and equipment cords are used to connect terminal and transmission equipment, respectively, to the cabling subsystem, they are not considered part of the cabling subsystem because they can be application specific. The optional redundancy between distributors as shown in Figure 3 shall be provided by the use of tie cabling. Tie cabling is not considered as a part of the hierarchical structure within this document. If provided, it shall include a) the tie cable, b) the mechanical termination of the tie cable at the peer distributors.
5.4.2 Network access cabling subsystem
The network access cabling subsystem extends from an MD (or ID, or ZD) to the ENIs or to the ISO/IEC 11801 series distributors (see Figure 2).
The subsystem includes a) the network access cables, b) the mechanical termination of the network access cables at the EN I(s), c) the mechanical termination of the network access cables at the MD, ID(s), ZD(s) or other distributors in accordance with ISO/IEC 11801-1.AS 11801.5 pdf free download.