This European Standard specifies generic cabling that supports a wide range of communications services for use within office premises, or office areas within other types of premises, that comprise single or multiple buildings on a campus. The requirements of this standard may be applied to other premises that are not explicitly specified within other parts of the EN 50173 series of standards. It covers balanced cabling and optical fibre cabling. This standard is based upon and references the requirements of EN 50173-1. This standard contains additional requirements that are appropriate to office premises in which the maximum distance over which communications services have to be distributed is 2 000 m. The principles of this European Standard may also be applied to installations that do not fall within this range. In addition to the requirements of EN 50173-1, this European Standard specifies: a) an extended structure and configuration for generic cabling within office premises in support of a wide range of services including voice, data, text, image and video; b) implementation options; Safety (electrical safety and protection, optical power, fire, etc.) and electromagnetic compatibility (EMC) requirements are outside the scope of this European Standard and are covered by other standards and regulations. However, information given in this international Standard may be of assistance in meeting these standards and regulations.