PLC (Power Line Communications) is a kind of technology to realize data transmission through public electric power network. To apply such a technology in information transmission, what the users need to do when they want to use the network is to attach a modem to their hardware and on the top of the modem, there is a plug of the data wire similar to the regular plugs in size.

　　A user only needs to connect his net card with this modem before plugging into any socket for an access to Internet and then IT begins to work on the network.

　　PLC is relied upon a kind of unique technology without a parallel. Electric power is the most fundamental conditions for the modern life and families. And as electric power is available in every corner of the country, PLC creates points of information wherever the electric power is being supplied to or any place where there is electricity can enjoy communicating with other place through PLC, thus saving all wiring among different households and neighborhoods.

    Therefore, PLC is the optimum solution to the problem of the last kilometer Internet access.