Who can tell me how to communicate with optical fiber? If you build a large LAN with optical fiber, how to connect the wires, what equipment you need and how many cores to use!

Optical fiber communication, as its name implies, is a technology that uses light to communicate, that is, after the electrical signal is converted into an optical signal, it is transmitted in the optical fiber, and then the optical signal is converted into an electrical signal at the opposite end, which is also commonly known as photoelectric conversion. This conversion efficiency is also the bottleneck restricting the current optical fiber communication rate.

Large LAN:

Take the office building as an example:

Each floor is equipped with 1 or several Gigabit optical fiber switches, which are connected through Gigabit optical fibers and connected to the exit route.

The electrical port of the optical fiber switch is also a gigabit port. According to actual needs, 24 ports, 48 ports, etc. Yes, computers in all offices can be connected from the switch with network cables.

It is recommended to use 2-core, mainstream and 1 core optical fiber, which is expensive and requires less equipment. Network cable is better, six kinds will do.

Equipment: In addition to export routes, Gigabit switches, optical modules and network cables.