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FTTH (Fiber to the home), as the name implies is a fiber directly to the family. Specifically, FTTH refers to the Optical Network Unit (ONU) installed in the home user or enterprise users, is the optical Access series in addition to FTTD (fiber to the desktop), the closest to the user's Optical connection network application type.
The obvious technical feature of FTTH is that it not only provides more bandwidth, but also enhances the transparency of data format, speed, wavelength and protocol, relaxes the requirements of environmental conditions and power supply, simplifies maintenance and installation.
FTTH Systems In the whole network of FTTH, the cable network can be divided into 3 parts, which are the feed segment, the segment and the household segment.
Because of the different position and environment of the cable in the network, the cable with different structure is used.
FTTH Feeder cable refers to the optical cable from Central Bureau to light distribution point, and its optical fiber cable products and technology are no big difference from the traditional outdoor cable, which is consistent with the choice of conventional metropolitan area network. FTTH wiring cable refers to the optical cable from the distribution point of light to the network access point, and the fiber cable usually needs frequent off-line and bifurcation.
FTTH wiring cable usually has a layer of loose casing cable, loose casing belt cable and skeleton type belt cable several types, in view of its fiber core number, the need for frequent line and bifurcation, it is advisable to use optical fiber assembly density, smaller cable diameter skeleton optical fiber ribbon cable. FTTH Home Segment cable is extended from the network access point to each optical fiber users, end up in the user indoor or building, directly connected to the home cable to the ONU.
When the user access point is placed outdoors, outdoor Dechong optical cable or indoor and outdoor dual-use optical cable; When the user access point is placed indoors or inside the building, the indoor cable should be selected.
FTTH Cable Mode
FTTH Wiring Cable
In view of its fiber core number, the need for frequent line and bifurcation, it is advisable to use optical fiber assembly with high density, smaller cable diameter of the skeleton optical fiber ribbon cable.
Skeleton Optical fiber ribbon cable with its high fiber density, small diameter to save pipeline resources, good resistance to lateral pressure, stable structure, continuous convenience, no filling ointment, China wire and cable network www.xianlan315.comenvironmental protection and other characteristics, can fully meet the FTTB,FTTH and other requirements for construction and communication capabilities. Skeleton Optical fiber ribbon cable is implemented by the optical fiber from the computer room to a number of junction boxes, and then access to the residential units, through the skeleton optical fiber ribbon cable on the opening of a number of different windows can be directly out of the need to access the household fiber belt, without the usual way to cut the cable.
The design and construction of FTTH is greatly simplified and convenient because of the need for a small number of optical cables and the characteristic of the inherent grease-free filling of the skeleton optical fiber ribbon cable. Shaft corridor access to the skeleton-type optical fiber ribbon cable in each layer is separated from the required fiber belt, the connector box is converted into a tail fiber into the household, and the horizontal pipe-connected skeleton optical fiber ribbon cable can be divided into two sections for each optical fiber band required at each point, which is converted into the tail fiber through the junction box into two adjacent households, The end of the cable is assembled in the computer room, thus forming a ring-like FTTH solution, so that the cable in the maximum utilization of optical fiber.