Optical access (Fiber To The Building) means fiber to the building; in addition to fiber to the home (FTTP / FTTH) cable has been extended to the home or business; FTTO, FTTC ... fiber-optic broadband network in a variety of transmission media the best one, it is characterized by a large transmission capacity, transmission quality, low loss, long distance relay.
Introduction
Optical access is entirely between the central office and the user as a transmission optical fiber media. Optical fiber access connection
Can be divided into active and passive optical access optical access. Fiber-optic technology is the main user network lightwave transmission technology. At present the development of optical fiber transmission multiplexing quite fast, most have been in practical use. Multiplexing are time-division multiplexing with the most (TDM), wavelength division multiplexing (WDM), frequency division multiplexing (FDM), code division multiplexing (CDM) and so on. According to the user's level of optical depth, can be divided into FTTC, FTTZ, FTTO, FTTB, FTTH, etc.. Fiber-optic cable telecommunications Bu Tongyu Communication, which is the use of metal media transmission signal, fiber optic communications is the use of transparent optical transmission light. Although light and electricity are all electromagnetic waves, but the frequency range varied widely. Generally the highest frequency communication cables about 9 to 24 MHz (10 (6) Hz), fiber-optic frequency in 10 (14) ~ 10 (15) Hz between.
Introduction
Optical access is entirely between the central office and the user as a transmission optical fiber media. Optical fiber access connection
Can be divided into active and passive optical access optical access. Fiber-optic technology is the main user network lightwave transmission technology. At present the development of optical fiber transmission multiplexing quite fast, most have been in practical use. Multiplexing are time-division multiplexing with the most (TDM), wavelength division multiplexing (WDM), frequency division multiplexing (FDM), code division multiplexing (CDM) and so on. According to the user's level of optical depth, can be divided into FTTC, FTTZ, FTTO, FTTB, FTTH, etc.. Fiber-optic cable telecommunications Bu Tongyu Communication, which is the use of metal media transmission signal, fiber optic communications is the use of transparent optical transmission light. Although light and electricity are all electromagnetic waves, but the frequency range varied widely. Generally the highest frequency communication cables about 9 to 24 MHz (10 (6) Hz), fiber-optic frequency in 10 (14) ~ 10 (15) Hz between.
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