This European Standard specifies the basic requirements for the planning, implementation and operation of information technology cabling using balanced copper cabling and optical fibre cabling. This standard is applicable to a) cabling designed to support particular analogue and digital communications services including voice services; b) generic cabling systems designed in accordance with series EN 50173 and intended to support a wide range of communications services. This standard is intended for those involved in the procurement, installation and operation of information technology cabling. Furthermore this standard is addressed to - architects, building