International Standard ISO/IEC 11801 specifies generic cabling for use within commercial premises, which may comprise single or multiple buildings on a campus.The International Standard is optimised for premises having a geographical span of up to 3 000 m, with up to 1000 000 m2of office space, and a population between 50 and 50 000 persons. It is recommended that the principles of this International Standard be applied to installations that do not fall within this range.Cabling defined by this International Standard supports a wide range of services including voice, data, text, image and video.This International Standard specifies: a) the structure and minimum configuration for generic cabling1), b) implementation requirements, c) performance requirements for individual cabling links and d) conformance requirements and verification procedures.Although safety (electrical, fire, etc.) and Electromagnetic Compatibility (EMC) requirements are outside the scope of this International Standard, and may be covered by other standards and regulations, information given in this International Standard may be of assistance in meeting these requirements.