AS 11801.2:2019 Generic cabling for customer premises Part 2: Office premises

07-23-2021 comment

AS 11801.2:2019 pdf download.Information technology一Generic cabling for customer premises Part 2: Office premises (ISO/IEC 11801-2:2017, 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:1) 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 E1 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 TO 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 30219 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 installations 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 to this document. Specifications marked “ffs” are preliminary specifications, and are not required for conformance to this document. NOTE The applicable environmental classification of ISO/IEC 11801-1:2017, 6.2, 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, describes how they are connected together to form subsystems and identifies the interfaces at which application- specific components are connected to the generic cabling. Applications are supported by connecting equipment to the telecommunications outlets and distributors.
5.2 Functional elements
In addition to the functional elements of ISO/IEC 11801-1, cabling in accordance with this document specifies the following functional elements:
a) floor distributor (FD) — equivalent to distributor I in ISO/IEC 11801-1;
b) horizontal cable — equivalent to fixed cable (cable Z) within cabling subsystem 1 in ISO/IEC 11801-1;
c) consolidation point (CP) — equivalent to consolidation point in ISO/IEC 11801-1;
d) consolidation point cable (CP cable) — equivalent to cable Yin ISO/IEC 11801-1;
e) telecommunications outlet (TO) or multi-user telecommunications outlet (MUTO) — equivalent to TE outlet in ISO/IEC 11801-1.
Groups of these functional elements are connected together to form cabling subsystems to provide the required connectivity to the terminal equipment.
5.3 General structure and hierarchy
5.3.1 General
Generic cabling systems contain up to three cabling subsystems: campus backbone, building backbone and horizontal cabling. The composition of the subsystems is described in 5.3.2 and 5.3.3. The cabling subsystems are connected together to create a generic cabling system with a structure as shown in Figure 2. The distributors provide the means to configure the cabling to support different topologies like bus, star and ring. In generic cabling, the functional elements of the cabling subsystems are interconnected to form a hierarchical structure as shown in Figure 3. It is possible to combine multiple functional elements into a single element (see 5.6.1). Connections between cabling subsystems are either active, requiring application-specific equipment, or passive. Connection to application-specific equipment adopts either an interconnect or a cross-connect approach (see ISO/IEC 11801-1). Passive connections between cabling subsystems adopt a cross-connect approach, by way of either patch cords or jumpers.AS 11801.2 pdf download.

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