There are two common optical fiber access methods: ADSL access method and HOMEPNA access method.

1. Optical fiber + Category 5 cable access mode (FTTx + LAN)

The optical fiber + Category 5 cable access method based on "gigabit to the community, 100M to the building, and 10M to the user" is especially suitable for my country's national conditions. It is mainly suitable for residential quarters, enterprises and institutions and colleges and universities where users are relatively concentrated. FTTX is optical fiber transmission to (roadside, community, building-), and LAN is a local area network. It mainly conducts integrated wiring for users who need broadband Internet access such as residential quarters, high-level office buildings, college teachers and student dormitories, etc. Individual users or enterprise units can realize high-speed Internet access and high-speed Internet access through the Category 5 network cable connected to the Ethernet card in the user's computer. interconnected.

1. The best fiber access method. From the telecom operator's central office fiber switch directly to the user's home, and then directly connected through the optical network card, basically all-optical network, the bandwidth can reach 1000M or even 10000M, exclusive bandwidth, generally does not appear.

2. Secondary fiber access mode. From the telecom operator's central office switch directly to the user's home, and then through the optical fiber transceiver (photoelectric conversion) to convert into a twisted pair to access the user's computer, most optical networks, the bandwidth can be up to 100M or even 1000M, but generally 100M is capped, Individual users are lower and have exclusive bandwidth.

3. Ordinary fiber access method. From the telecom operator's central office switch directly to the user's building, and then through the building switch to convert to twisted pair to access the user's computer, some optical networks, the bandwidth can be up to 100M, but generally 10M capped (commonly there are 2M, 4M, 8M, etc.), using PPPOE dial-up Internet access, sharing bandwidth (sharing depends on the number of users in the building). Also known as LAN access mode, one of the modes is often used before optical network upgrades, and the other is ADSL.

4. Upgrade the optical network mode. From the OTL switch at the central office of the telecom operator to the user's home through optical fiber and passive optical splitter, and then converted into a twisted pair through the ONU (also known as optical cat) to access the user's computer, most optical networks, the bandwidth can be up to 100M, However, at present, it is generally capped at 20M, using PPPOE dial-up Internet access, and sharing bandwidth (the sharing situation depends on the bandwidth of the OTL downstream fiber and the splitting ratio of the passive optical splitter), which is currently the so-called pure optical network.

5. Upgrade optical network mode 2. From the OTL switch at the central office of the telecom operator to the user building through the optical fiber and passive optical splitter, and then converted into a twisted pair cable through the building ONU switch to access the user computer. In some optical networks, the bandwidth can be up to 100M, but currently it is generally 20M Capped, using PPPOE dial-up Internet access, sharing bandwidth (the sharing situation depends on the bandwidth of the OTL downlink fiber and the optical splitting ratio of the passive optical splitter, and the number of users in the building).