Three critical large-scale deployment of FTTH

Fiber to the home, from the transmission distance (10 km or more) and offers the ultimate bandwidth increase, but also to subvert the traditional twisted pair access network model, relative to the fiber to the building has been greatly changed. Therefore, large-scale deployment of FTTH in the same time, the following points of particular concern.

First, the integration of network structure and flat. As the optical fiber transmission distances, single-node OLT covering 10 km, compared to the traditional DSLAM equipment cover 1-2 km, covering a radius of more than 5 times, so access for OLT devices, higher capacity requirements, single-node requirements Access thousands of FTTH subscribers. In addition, the capacity to enhance the access nodes, making the existing DSL network convergence in three dimensions meaningless, high-capacity OLT 10GE directly by the business on the router or even MAN Broadband Remote Access Server. Therefore, the future access network should be achieved through high-capacity access network infrastructure equipment, network integration and aggregation, routing functionality will be integrated three new access node development needs. Another is the integration of the terminal side by a light terminals, fixed access and mobile access, integration, business integration and home users, and ultimately by single, single-box access to achieve the deployment of various types of business, will reduce the terminal input costs, but also will increase user stickiness, and reduce the failure rate of the terminal.

Second, is to achieve intelligent access network, the network operators to improve profitability. With the global spread of Web2.0 concepts in the entire Internet industry chain, low-margin telecom operators with networks in sharp contrast to the huge investment, telecom operators can not be satisfied merely as a "pipeline" chain operator position, the need to further tap the network's ability to invest heavily in building networks to share in the Internet ecosystem in more innovative business models profits growth opportunities. While FTTH will provide users with massive bandwidth, but DSL should avoid repeating the mistakes of the era of pure pipeline operators. As the closest to the user's network resources, the intelligent access network will effectively improve the telecommunication control channel can control the efficiency.

Finally, to achieve the green, environmental, economic access. Energy saving, environmental protection, but also the whole country when operators seek to develop basic principles to be followed. As the most close to the user, device size and the largest energy-consuming access network, the development of the green network will be the top priority, not only will reduce their consumption to save a large amount of carrier operation and maintenance expenses, but also to protect the global environment, provide significant help to create a green home. Passive optical network technology to replace the use of twisted pair technology, high-capacity single node instead of small-capacity, multi-node access network will effectively reduce energy consumption, but also covers wide range of fiber will increase the difficulty of operation and maintenance. Easily cover 10-20 km of fiber optic access, if there is no effective method of operation and maintenance will greatly increase the cost of network management. Therefore, operators in the large-scale deployment of FTTH networks, we must also consider the deployment of the network in the future operation and maintenance are convenient, economic, quality of service is to be guaranteed.