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Several fibers from an OLT can be carried in a single cable. [5] A PON reduces the amount of fiber and central office equipment required compared with point-to-point architectures with dedicated connections for every user. A passive optical network is a form of fiber-optic access network. Bandwidth is shared among users of a PON. [6] [7]
While multiple network structures were capable of supporting broadband services, an ever-increasing percentage of broadband and MSO providers opted for fibre-optic network structures to support both present and future bandwidth requirements. CATV (cable television), HDTV (high definition television), VoIP (voice over internet protocol), and ...
An optical network terminal (ONT, an ITU-T term), also known as an optical network unit (ONU, an IEEE term), is used to terminate the optical fiber line, demultiplex the signal into its component parts (voice telephone, television, and Internet access), and provide power to customer telephones.
Fiber-optic cable being pulled underneath the streets of New York City An optical fiber jack (cover removed) in a residence with FTTH service ISP equipment for FTTH. In the center there is an Optical Consolidation Rack for connecting the ISP to the outside plant cables that connect to customers.
The exact kind of fibre cable and connectors to use is undefined but is broadly using SC/APC connectors. [6] The primary optical transmitter, known as the optical line terminal (OLT), is housed within the central office of the telecommunications operator. A laser in the OLT injects photons from the central office into a glass-and-plastic fiber ...
Cable Internet access at speeds up to 2 Gbit/s [86] and Gigabit Pro Fiber in select areas with speeds up to 10 Gbit/s. [87] AT&T: 15,452,000 [85] DSL access at speeds up to 18 Mbit/s, and FTTN VDSL2 access (AT&T Internet) at speeds up to 100 Mbit/s. Fiber access available at up to 5 Gbit/s [88] Charter Spectrum: 30,328,000 [85]