What is FTTH, FTTX in Optical Fiber Communication Network
FTTH is short for Fiber to the Home, which is a transmission mode of optical fiber communication. As the name suggests, it directly connects optical fiber to the user terminal. FTTH is an access method in FTTX, so what is FTTX?
FTTX is a general term for various application types of broadband optical access networks, “X” has a variety of variants, such as fiber-to-the-building (FTTB), fiber-to-the-handover box (FTTCab), fiber-to-desktop (FTTD), fiber-to-the-premises (FTTP), fiber-to-user (FTTu) and so on.
FTTX Terminology
FTTH（Fiber to the Home)
FTTB (Fiber to the Building)
FTTO (Fiber to the Office)
FTTC (Fiber to the Curb)
ODN (Optical Distribution Network)
OLT (Optical Line Terminal)
ONU (Optical Network Unit)
PON (Passive Optical Network)
EPON (Ethernet Passive Optical Network)
GPON (Gigabit-capable Passive Optical Network)
NT (Network Terminator)
ONT (Optical Network Terminator)
P2MP (Point to Multipoint)
CO (Center Office)
The typical network structure of FTTH is shown as below. Depending on the user’s different business requirements and home wire conditions, the home network can use different home networking modes: wire mode and wire +wireless AP access mode, then voice, broadband data, IPTV, WLAN and other services can be configured easily and flexibly.
