What is FTTx?
FTTx is "Fiber To The x", which is a general term for various fiber-optic communication networks. X based on the location of the fiber's termination point. Such as x = H (Fiber to the Home), x = O (Fiber to the Office) , x = B (Fiber to the Building). The FTTx technology ranges from the central office equipment to the user terminal equipment, including OLT (Optical Line Terminal), ONU (Optical Network Unit), ONT (Optical Network Terminal).
Depending on the install location of the ONU at the user end of the optical network unit, there are many types of FTTx, which can be divided into fiber to Cabinet (FTTCab), fiber to curb (FTTC), fiber to building (FTTB), fiber to the home (FTTH), fiber to the office (FTTO) and other service forms. US operator Verizon refers to FTTB and FTTH as fiber-to-the-station (FTTP).
FTTCab (Fiber To The Cabinet)
The traditional electric cable is replaced by optical fiber. The ONU is placed at the cabinet. The ONU below uses copper wire or other media to connect to the user.
FTTC (Fiber To The Curb)
Optical cables will be used from the central office to roadsides within a thousand feet of home or offices. Generally, a potential broadband transmission link that is very close to the user is laid first. Once there is a need for broadband services, the fiber can be quickly led to the user and the fiber can be brought home.
FTTB (Fiber To The Building)
It is a broadband access method based on optimized optical fiber network technology, which uses fiber to the building and network cable to the home to achieve the user's broadband access. Generally, dedicated line access is adopted, which is easy to install and can provide a maximum upstream and downstream rate of 10Mbps (exclusive).
FTTH (Fiber To The Home)
FTTH is a type of optical access network application that is closest to the user except the FTTD(Fiber to the Desktop) by installing the ONU in home or business users. PON technology has become a hotspot of global broadband operators, and is considered to be one of the best technical solutions to achieve FTTH.
FTTP (Fiber To The Premise)
FTTP is a North American term. It includes FTTB, FTTC, and FTTH in a narrow sense, and extends optical fiber cables to homes or enterprises.
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