What aspects should be paid attention to when purchasing optical cables?
First: According to the laying method, it is judged whether the optical cable is overhead or buried, whether it is light armor or heavy armor.
Second: determine whether it is single-mode or multi-mode.
Third: Determine the number of cores of the purchased optical cable according to the actual number of optical fiber cores used in the design.
Fourth: According to the requirements of the project unit to determine whether the national standard or factory standard is adopted.
