Recommended technical requirements are detailed by reference to IEC 60794-3-11 on outdoor optical fibre cables for duct, directly buried, and lashed aerial applications. (FOA) was founded in 1995 to help develop the workforce to build the fiber optic networks to support a rapid expansion in communications and the Internet. It covers the requirements for fiber optic cables intended for aerial installation either by attachment to a support strand or by an integrated self-supporting arrangement, for underground application by. Drawing on IEC standards and industry research data, it outlines the coverage of mainstream outdoor fiber optic cable types, selection criteria, and best practices for installation, providing a systematic reference for outdoor fiber optic cable deployment. Outdoor fiber optic cable is engineered. Outdoor optical fiber optic cables are designed to provide reliable and high-speed data transmission over long distances in a range of harsh environments, including extreme temperatures, high humidity, and exposure to ultraviolet light. It defines a minimum leve e fiber optic cabling extends between buildings. Although the standard covers premises installations, many of the provisions included here ar SI/ NFPA 70, the National Electrical Code (NEC). It is the responsibility of users. Recommendation ITU-T L.