Because fiber is immune to electromagnetic interference, it's ideal for buildings with high electrical noise, long cable runs, or strict reliability requirements—especially in modern fire alarm and integrated security systems. FireTuf fibre optic cables are manufactured by Prysmian Draka. Offered in OM1, OM3 and OM4 multimode and OS2 singlemode, in 4, 8, 12 or 24 core fibre configurations. All feature a corrugated steel tape armour for protection from rodents, a central loose tube construction and internal/external LSZH. A single-mode 4-core flame-retardant fiber optic cable is a high-performance cabling solution designed for reliable, long-distance data transmission with enhanced safety features. According to the. Fiber optic cable jackets play an essential role in protecting the delicate fibers within the cable from environmental hazards and ensuring optimal performance. They are designed to withstand different conditions, from high temperatures to corrosive substances. The cable jacket protects a fiber optic cable from the elements and other hazards, such as mechanical damage and fire, and depending on the rating, little or. For projects where fire performance, low smoke behavior, rodent protection and outdoor durability must be balanced in a single construction, this cable provides a practical indoor/outdoor option with UV-stabilized outer sheath and dependable mechanical protection. The main role of a fire resistant.