The Difference Between FTTH & FTTB

    Mainly in the location of the optical terminal equipment and the access method for end users. In FTTH, the optical fiber is directly routed to the user's home, and the optical network unit (ONU) is deployed inside the user's residence. Each user enjoys an independent optical fiber connection, which can provide higher bandwidth, lower delay, and more stable network performance, and can better meet the needs of high-speed Internet access, 4K/8K video streaming, cloud services and other high-bandwidth applications.

    For FTTB, the optical fiber only reaches the building (such as a residential building or office building), and the optical terminal equipment is centrally deployed in the building's equipment room or corridor distribution box. The signal is then distributed to end users through twisted-pair cables or other copper wires. Sharing the optical front-end resource among multiple users makes the deployment cost of FTTB lower, but the available bandwidth per user is relatively limited, and the network performance will be affected when multiple users use the network at peak times.

   In addition, the two are also different in service support: FTTH can carry more personalized and high-quality integrated services such as voice, high-definition television and smart home interconnection, while FTTB is mostly used in scenarios with relatively concentrated users and moderate bandwidth demand.