This standard specifies generic cabling for distributed building services and can be used in conjunction with all the space-specific standards of the EN 50173 series. It covers balanced cabling and optical fibre cabling. This standard specifies directly or via reference to EN 50173 1 the: — structure and minimum configuration for generic cabling for distributed building services; — interfaces at the service outlet (SO); — performance requirements for cabling links and channels; — implementation requirements and options; — performance requirements for cabling components; — conformance requirements and verification procedures.