ISO/IEC 11801-6 Generic Cabling-Distributor Building Services - What changes will the proposed adoption bring

ISO/IEC 11801-6 is currently at DIS (Draft International Standard) stage of development and its planned adoption will see some fundamental changes to how structured cabling is implemented within customer premises.

ISO/IEC 11801-6 cabling looks to support non user specific services and looks to establish communication pathways between these systems to share information with the added challenge that a number of these services require power from the same cable for the system to operate.

ISO/IEC 11801-6 generic cabling is likely to support

1.       Telecommunication services including WAP

2.       Energy management including lighting

3.       Environmental control including temperature and humidity

4.       Personnel management including access control and cameras

5.       Personal information and alarms including patient monitoring and nurse call

6.       Intelligent building systems

The General Structure and Hierarchy of ISO/IEC11801-6 is likely to include the adoption of new descriptors and implementation modelling.

There are two key elements that have been included which is a move to support channels of 10,000m (2000m previously) and the introduction of an interface to type B cabling where no outlet is utilised at the Terminal equipment

The current Distributors hierarchy within the draft standard follows the traditional line however a floor distributor to be replaced by a service distributor

CD          Campus Distributors

BD          Building Distributors

SD           Service Distributor

The Service Distribution Channel is destined to be 100m while the backbone (Service Distribution + building backbone + Campus backbone) Channel is touted to be10,000m

Backbone link Distributors Topology doesn’t look like changing from a star topology, however optional tie cables between BD to BD and SD to SD have been included in the draft

SCP Service Concentration Point similar to AS/NZS3080 consolidation points are planned which can support type A or B generic cabling

Twisted cabling to a SCP to have a minimum link performance of Class EA . This will help address alien crosstalk issues associated with 2.5, 5 and 10 G/Bit/s Ethernet services implementation

SO Service outlet (Type A Cabling) replaces the Telecommunication outlet naming convention and currently has a minimum link performance requirement of Class EA

Type B Cabling is cabling from Service Distributors where a service outlet is not used. There is no minimum stated performance requirement stated.


Tree, branch, star, bus and loop topologies for type B cabling can be utilised however the cabling between SCP to the terminal equipment is deemed out of scope at this stage. Having said that work is currently underway to assess the suitability of Gigabit Ethernet delivery over1/2 pair to 15 metres that is utilised by the motor vehicle industry which may well be deemed type B cabling in the future (Once connectors have been agreed to).


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