Hello, brother, the network connection between buildings is generally optical fiber. How many optical fibers are used depends on the function. For example, a building needs building automation systems such as network and TV, and how many optical fibers are used according to the equipment used. For a building, the network connection from the computer room to each floor can use optical fiber or network cable. If there are many users, optical fiber is more reliable. After all, there are too many network cable users and too much traffic, which will be unstable.

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