In addition to the selection of fiber optic cable according to the number of fiber cores and fiber types, but also according to the use of optical cable environment to choose the structure of the cable and outer sheath.
1. outdoor cable buried, it is appropriate to use loose-fitting armored fiber optic cable. When overhead, can choose with two or more reinforcement of the black PE outer sheath of the loose sheath fiber optic cable.
2. The building with fiber optic cable in the selection should be selected tightly sheathed cable and pay attention to its flame retardant, toxic and smoke characteristics. Generally in the pipeline or forced ventilation can be used in flame retardant but smoke type (Plenum) or combustible non-toxic type (LSZH), the exposed environment should be selected flame retardant, non-toxic and non-smoke type (Riser).
3. When the vertical or horizontal distribution of cables in the building, can be used with the building common tight-sleeve optical cable, wiring optical cable or branch optical cable when.
4. According to the network application and cable application parameters to choose single-mode and multimode fiber optic cable, usually indoor and short-distance applications to multimode fiber optic cable, outdoor and long-distance applications to single-mode fiber optic cable.
