Multimode ST is a type of fiber optic cable that is designed to transmit multiple signals simultaneously. It is composed of a core of glass fibers surrounded by a cladding layer and a protective outer jacket. The core is made up of several strands of glass fibers, each of which is capable of carrying a different signal. The cladding layer helps to keep the light from the core fibers from escaping, while the outer jacket provides protection from environmental elements. Multimode ST cables are used in a variety of applications, including data transmission, telecommunications, and video transmission. They are also used in medical imaging and other industrial applications.