1) When the optical cable is directly buried for outdoor use, the armored optical cable should be selected. When overhead, the optical cable with black plastic outer sheath with two or more reinforcing ribs can be selected.

2) Attention shall be paid to the characteristics of flame retardancy, toxicity and smoke when selecting optical cables used in buildings. In general, flame-retardant but smoke type (Plenum) can be selected in the pipeline or forced ventilation place, and flame-retardant, non-toxic and smokeless type (Riser) shall be selected in the exposed environment.

3) When laying cables vertically in the building, layer twisted optical cables can be selected; Breakout Cables can be selected for horizontal wiring.

4) If the transmission distance is less than 2km, multimode optical cable and optical cable wholesale can be selected. If the transmission distance is more than 2km, relay or single-mode optical cable can be used.