1.the transmission distance within 2km, you can choose multimode fiber, more than 2km available relay or choose single-mode fiber.
2.the building with optical fiber in the selection should pay attention to its flame retardant, toxic and smoke characteristics. Generally in the pipeline or forced ventilation can choose flame retardant but smoke type; if it is exposed to the environment, it should be selected flame retardant, non-toxic and smoke-free type.
3.outdoor with fiber optic cable buried directly, it is appropriate to use armored fiber optic cable. When overhead, can be used with two or more reinforcement of the black plastic outer sheath of optical fiber.
