FTTH access technology selection - ActiveOpticalNetwork

China's residential district FTTH access technology options - active cell switched optical network (ActiveOpticalNetwork - AON) peer to peer (P2P) access  technology
Obviously, PON advantage in high-density residential district in gone. In the current PON technology is not very mature, and equipment prices remain high, we  believe that FTTH access options AON technology is more scientific and feasible, because:

- Area generally has room;
- AON's P2P technology is mature, low cost, can easily provide bandwidth of 100M or 1G, and seamlessly link existing computer networks;
- No increase to the community center room laying fiber optic cable;
- Simple network structure, construction and operation and maintenance costs low;
- Concentrated in the community room wiring, easy to distribute telephone numbers, maintenance and management;
- Allow users to choose operators, carriers and more conducive to competition, through the competition can be effective in protecting the interests of users;
- Device port utilization is very high, the number of users can access the gradual increase in expansion.

A typical FTTH network architecture based on AON, engine room from the telecom operators to follow the already existing community room low number of cable  cores, placed in the community room exchange system, from the community room to the client using peer to peer (P2P) networking , unified access equipment and  patch panels placed community room, the entire network using mature technology, low-cost Ethernet protocol. AON-to-end FTTH network is widely used in Japan and the United States of FTTH access technology, the world's 500 million lines of FTTH subscribers in more than 95% using active exchange of P2P technology. Its outstanding advantages are:

- High bandwidth: easy way to achieve stability 100M broadband access;
- Can support Internet broadband access, CATV access and telephone access, triple play in the access network;
- Support for new business for the foreseeable future: video telephony, VOD, digital cinema, telecommuting, online exhibitions, tele-education, telemedicine, data storage and backup, and so on;
- The network structure is simple, mature technology, access to low cost;
- Community room is the only active node, centralized machine room wiring, reduce maintenance costs, improve device port utilization;
- Allow users to choose operators will help carriers compete with each other;
- Effective conservation center room of fiber optic cable to residential resources, without adding to the community center room laying fiber optic cable

We believe that FTTH access options AON technology is more scientific and feasible, but also because of PON technology in the development of standards and uncertainty:
- The standard has just seen a variety of versions (EPON & GPON), a standard to promote competition on the future uncertainty.
- 3-5 years of related devices have standardized and mature in the next 3-5 years is difficult with the current Ethernet P2P popularity of the device relative to the cost and competition.
- PON high cost of optoelectronic devices: high power, high-speed burst of transceivers; current production of optoelectronic devices is far lower cost PON system can not meet the requirements.
- The current average price of foreign EPON line of equipment for the 1000-1500 U.S. dollars.