Quick overview: Fiber optic cable jackets are made from PVC, LSZH, PE, or TPU. OFNP is for plenum air-handling spaces; OFNR is for vertical risers. Outdoor plant uses UV-stabilized PE. Armor adds rodent and crush protection for direct. Whether you are designing and manufacturing a new cable or simply choosing an existing one for data, power, fiber optics, or industrial automation, the outer sheath (jacket) is much more than just a speaking cover to the eye; it is, in fact, an important job holder in mechanical protection. Quick overview: Fiber optic cable jackets are made from PVC, LSZH, PE, or TPU. Armor adds rodent and crush protection for direct burial. By Marcus. Below features show a general approach to plastic materials used for fiber optic Cable sheathing and jacketing in the world market. Depending. OFNP (Optical Fiber Nonconductive Plenum): It can be translated into Chinese as 'Optical Fiber Nonconductive Exhaust Duct Grade'. In addition to this, they find great use in data centers, telecommunications infrastructure, and enterprise networks; knowing their structure guarantees proper deployment and a. The main function of the fiber cable outer sheath is to protect the optical fibers in the optical cable from external damage. At the same time, it must have.