BISMON The FTTH round cable with armored protection spiral steel pipe is designed for outdoor use. Its robust armored layer provides effective resistance against rodent bites and environmental damage, ensuring reliable performance in exposed conditions.. There are two different types of optical fiber cable, Single-mode (G.657A1-A2) and Multi-mode 50/125um (OM2,OM3,OM4). The cable is designed for indoor and outdoor use, while utilizing the aramid yarn to support a tensile strength member. The outer sheath material is made from LSZH (Low smoke zero halogen), which is flexible and safe in case of fire. The strand of the cable can support a max. span of 10M, has the diameter of 1.2mm(7x0.4mm), and is galvanized steel wire coated. The cable has been approved by the Thai Industrial Standards Institute under TISI 2166-2548.