The purpose of this document is to define the standards and guidelines that should be followed in order to fabricate a harsh environment fiber optic cable assembly. Fiber optic cables are the backbone of today's high-speed internet, telecommunication systems, and data transfer technologies. Unlike traditional copper cables, fiber optic cables use light signals to transmit data, which allows them to carry large amounts of information at extremely high speeds. Fiber optic network design refers to the specialized processes leading to a successful installation and operation of a fiber optic network. Environmental requirements such as temperature, humidity, vibration, shock, etc.