Optical fiber access network (OAN): the household is an optical fiber, which needs to be converted into a network cable to connect the optical fiber cat. The cat is an access network using optical fiber transmission technology, that is, all or part of the communication between the local exchange and users using optical fiber transmission. system. Optical fiber has the advantages of broadband, strong long-distance transmission, good confidentiality, and strong anti-interference ability, and is the main implementation technology of future access networks.

The FTTH method refers to the direct connection of optical fiber to the user's home, which is the long-term development direction and the ultimate access network solution.

FTTX+LAN access method: It is a network cable to enter the home. This is a broadband access solution that uses optical fiber and five types of network cables to realize Gigabit optical fiber to the center switch of the community (building). Wiring, the user's Internet access rate can reach 100Mbps, the network scalability is strong, and the investment scale is small.

There are also fiber to the office, fiber to the home, fiber to the desktop and other access methods to meet the needs of different users. The FTTX+LAN mode adopts a star network topology, and users share the bandwidth.