Fiber optic jumpers are mainly divided into the following three types by termination type: ST-ST, SC-SC, and ST-SC. According to the type of fiber, there are mainly two types: single-mode fiber and multi-mode fiber. The specifications for jumper length include 0.5m, 1m, 2m, 3m, 5m, 10m, etc. According to the material of the cable outer protective layer, it can be divided into ordinary type, ordinary flame retardant type, low smoke halogen-free type (LZSH), low smoke halogen-free flame retardant type, etc.
According to the fire rating of the building and the fire resistance requirements of the materials, corresponding measures should be taken for the comprehensive wiring system. When laying cables or optical cables in flammable areas and vertical shafts of buildings, flame-retardant cables and optical cables should be used; Flame retardant, low smoke, and low toxicity cables or optical cables should be used in large public places; Flame retardant wiring equipment should be used between adjacent equipment or handover rooms.