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Detailed explanation of the advantages of FTTH/FTTB

2022-08-08
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FTTH (Fiber To The Home), as the name suggests, is an optical fiber directly to the home. Specifically, FTTH refers to the installation of optical network units (ONUs) at home users or enterprise users, and is the optical access network application type closest to users in the optical access series except FTTD (fiber to the desktop).

 

The significant technical feature of FTTH is that it not only provides greater bandwidth, but also enhances the transparency of the network to data formats, rates, wavelengths and protocols, relaxes the requirements for environmental conditions and power supply, and simplifies maintenance and installation.

 

The advantages of FTTH are mainly 5 points:

First, it is a passive network, from the central office to the user, basically passive in the middle;

Second, its bandwidth is relatively wide, and the long distance is just in line with the large-scale use of operators;

Third, because it is a business carried on optical fibers, there is no problem;

Fourth, because of its wide bandwidth, the supported protocols are more flexible;

Fifth, with the development of technology, including point-to-point, 1.25G and FTTH methods have developed relatively complete functions.

ftth cable

In the optical access family, there are FTTB (Fiber To The Building) fiber to the building, FTTC (Fiber To The Curb) fiber to the curb, FTTSA (Fiber To The Service Area) fiber to the service area and so on.

 

FTTB (Fiber To The Building): It means fiber to the building. It is a broadband access method based on the optimization of high-speed optical fiber local area network technology. It adopts the method of fiber to the building and network cable to the home to realize the broadband access of users. We call it FTTB. +LAN broadband access network (FTTB for short), which is the most reasonable, practical and cost-effective broadband access method. FTTB broadband access uses single-mode optical fiber high-speed network to achieve Gigabit to the community, LAN 100M to buildings, and 10M to users.

 

Since FTTB is completely like a local area network in the Internet, there is no need to dial-up to use FTTB, and the FTTB dedicated line is connected to the Internet, and users can access the Internet as long as they are turned on. Of course, FTTB access to ISP will not be busy like ordinary dial-up Internet access. FTTB Internet access is only fast or slow, and there will be no busy access situation, and because FTTB Internet access does not access the Internet through the telephone exchange network, It only takes up broadband network resources and does not generate telephone charges when browsing the Internet with FTTB.

 

FTTB, the hardware requirements are the same as those of ordinary LAN: computer and 10M Ethernet card, so the hardware investment for users is very small. FTTB high-speed private line users can not only enjoy all the services of the Internet, inquiring about information, seeking help, mail communication, e-commerce, stock and securities operations through the Internet, but also enjoy many broadband value-added services provided by ISPs, distance education, telemedicine, interactive Video (VOD, NVOD), interactive games, broadcast video, etc., and compared with HFC, FTTB can fully guarantee the bandwidth of each user, because the final 10M bandwidth of each user is exclusive.

 

The advantages of FTTB as a high-speed Internet access method are obvious, but we should also see the disadvantages. ISPs must invest a lot of money to lay high-speed networks in each user's home, which greatly limits the promotion and application of FTTB. There is still a lot of work to be done that most netizens can afford.

 

(1) FTTN: Fiber To The Node, fiber to the node

 

(2) FTTZ: Fiber To The Zone, fiber to the cell

 

(3) FTTCab: Fiber To The Cabinet

 

(4) FTTC: Fiber To The Curb, fiber to the curb

 

(5) FTTB: Fiber To The Building

 

(6) FTTP: Fiber To The Premise, fiber to the customer premises

 

(7) FTTH: Fiber To The Home, fiber to the home

 

(8) FTTO: Fiber To The Office

 

In different application environments, the optical cables used also have structural differences to meet the special needs of different environments.

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