Low cost fiber to household (FTTH) solutions

Shenzhen first mai communication technology Co., Ltd Yellow River Vibration

Fiber to the HOME--FTTH access technology as the future final, once and for all broadband access solutions, in Japan and the United States has been widely used (a total of about 5 million users), in China has been more and more attention. As the first company specializing in the development and production of optical fiber to the Home (FTTH) and fiber to the desktop (Fiber to the DESKTOP--FTTD) equipment, we have recently received many FTTH application requirements, in the process of communicating with users and providing solutions, The biggest obstacle to the development of FTTH in China is that the investment cost is too high. We think that it is the key to develop FTTH to develop low-cost FTTH access equipment, which is suitable for FTTH access technology in China.

1. Low investment efficiency due to high equipment cost is the key factor hindering FTTH development

As we all know, FTTH equipment prices are still very high, often a front-line price of nearly 1000 U.S. dollars, but in Japan and the United States and other developed countries are still better development, one of the reasons is that its telecommunications operators can charge users a higher service charge. It is understood that in Japan telecom operators to FTTH users a monthly charge of 5000-6000 yen service fee, equivalent to about 400-500 yuan, in the United States FTTH users per household monthly service fee is also about 80-100 U.S. dollars, telecommunications operators of FTTH network generally 2-3 years can recover investment, This investment benefit is obviously good. But in China, things are totally different. At present, many cities in China, due to fierce market competition, ADSL and LAN broadband access based on the 5-class line has dropped below 50 yuan, individual monthly use fee of higher areas, such as Shenzhen, monthly use fee is only 100 yuan. The cost level of this broadband access service simply cannot support FTTH network construction and operation, the investment recovery cycle of 10 years, such investment benefits obviously can not arouse the investment interest of telecom operators. Cedar  泶  ⌒ ping  neon cutting mirror 腇 tth, only low-cost FTTH will have applications and development opportunities, but also there will be opportunities for development. The so-called Low-cost FTTH should be less than 2000 yuan per line or even 1000 yuan, only in this way, FTTH may be in China's large-scale popularization and development.

2. FTTH access technology in line with national conditions

The implementation of FTTH technology solution directly determines the production cost of FTTH equipment. At present, there are two main types of FTTH access technology: Epon and gpon based on passive optical network (passive optical network-pon), based on the optical of active switched access (Network--aon) Peer-to-peer technology.

Ten years ago, when the technology of PON was proposed, because the optical fiber is very expensive at that time (more than 10 yuan per core or even dozens of yuan), and pon a bit of P2MP technology can effectively conserve fiber, especially when the passive optical splitter is very close to the user, at the same time, PON is passive network, easy to maintain and manage. Today, with the maturity and popularization of optical fiber production technology, the market price of optical cable (only a few cents per core) has been lower than the price of ordinary copper cable, the advantage of PON to save cable is not outstanding today. In addition, the main target market of FTTH in China is small and medium-sized urban residential District residents, urban residential district generally for the garden-style residential district, its outstanding features are: High density of households, residential quarters equipped with communications room, mainly for the installation of telecommunications operators of broadband access equipment, Therefore, the advantages of PON's passive network can not be fully played and embodied in our residential district. And Pon is born with high cost of equipment, bandwidth multiuser sharing, distribution nodes dispersed, users can not freely select operators, access to the port utilization rate is low, network structure is not flexible and other disadvantages, but it is precisely aon fiber Peer-to-peer network structure can easily overcome and avoid. In particular, the cost of PON equipment is much higher than Aon, and high cost becomes the biggest obstacle to the application of PON. Therefore, based on the characteristics of China's residential district, we think that the selection of Low-cost residential active exchange Aon point to Point (peer-to-peer) technology more in line with China's national conditions.

3. First-step communication low cost FTTH system

As the first professional engaged in optical fiber to the user (Fiber to the HOME--FTTH) equipment research and development enterprises, Shenzhen first-Step Communications Technology Co., Ltd. fully consider the characteristics of FTTH market in China, successfully launched with independent intellectual property rights in line with China's national conditions, The Onaccess series FTTH products, which meet the low cost requirements, provide flexible and low-cost FTTH solutions for the current promotion of FTTH in China.

①FTTH Broadband Access Solution

As shown in Figure 1. The network is mainly by the light path terminal (optical line Terminal-olt) which is placed in the cell room, ONACCESS5XXX series low cost optical switch and the optical Network unit placed on the user side (Optical network unit- ONU) OnAccessH1001 composition. Transmission medium is single-mode fiber, can choose single fiber, also can choose double fiber. A onaccess5xxx optical switch can connect up to 24 users of the ONACCESSH1001 Optical Network unit, ONACCESSH1001 can also line up to 4 computers or IP telephony. If the user has only one computer can choose OnAccess1001 Fiber card inserted in the computer, directly connected into the fiber. Access bandwidth for a dedicated line two-way 100M, transmission distance of up to 20km.

②FTTH Broadband, CATV and telephone triple network access solution

As shown in Figure 2. The network core device of the scheme is OnAccess2224 video multiplexing fiber switch, which has 24 multiplexed CATV signal 100Mbps single mode single fiber interface, one CATV optical signal (wavelength 1550nm) input port and two 1000M data port. Video multiplexing fiber switches are linked in a point-to-point manner to the ONACCESSH1004 Optical Network unit of each information point, while providing users with a duplex 100M speed Internet access, CATV broadcast signal and telephone access The ONACCESSH1004 Optical Network Unit provides a single mode single fiber interface, a CATV 75ω coaxial cable RF interface and 4 10m/100m RJ45 interface, a RJ11 ordinary telephone interface, connected with the OnAccess2224 video multiplexing fiber switch CATV signal Transmission adopts an independent transparent transmission channel, which is fully compatible with the future High-definition Digital TV system. To further reduce the cost of equipment, the first-step communications also provides dual-fiber and three-fiber access solutions.

③ first-step communication based on Aon FTTH Solutions outstanding Features

The first-step communication based Aon FTTH solution has the following salient features:

Low cost, broadband access for each line of equipment price of about 1000-1500 yuan, three nets in one access per line of about 2000-3000 yuan;

Support Internet broadband, CATV and telephone triple network access;

Access medium can choose single fiber or double fiber connection, flexible and optional;

High bandwidth, can easily provide two-way 100M and 1000M bandwidth dedicated line access;

Flexible network structure, low cost of operation and maintenance;

Centralized in the district computer room wiring, easy to put number, maintenance and management;

Allow users to choose operators freely, which is advantageous to the competition of multiple operators;

No need to increase the laying center room to the cell cable;

Device port utilization is very high, can increase according to the number of access users and gradually enlarge;

Support future foreseeable new business: Videophone, VOD, digital cinema, remote office, online exhibition, TV education, telemedicine, data storage and backup, etc.

Investment benefit analysis of ④ communication FTTH Solution

For broadband access FTTH Solutions, we assume that the average equipment line of 1300 yuan, optical cable laying costs for each information point of 500 yuan, that is, each user invested 1800 yuan, a monthly user 100 access fee, operation and maintenance costs accounted for the monthly access fee of 50%, that is 50 yuan. In this way, a monthly profit of 50 yuan, the need for 3 years to recover all investment in the telecommunications industry, this rate of return should be good at present.

And for broadband, CATV and telephone triple network access solutions, we assume that the average equipment line for 2500 yuan, cable laying costs for each information point 500 yuan, that is, each user invested 3000 yuan, a monthly user 100 yuan broadband access fee, a monthly charge of 50 Yuan CATV subscription fee, A CATV account fee of 400 yuan, operation and maintenance costs accounted for the monthly access fee of 50%, that is 75 yuan. In this way, a monthly profit of 75 yuan, but also about 3 years to recover all the investment, the rate of return is also very good.