Shenyang broadband company to introduce you to the basics of broadband networks: the traditional phone line system using a low-frequency part of the copper (4kHz about the band). The ADSL using DMT (Discrete Multi-Tone) technology, the original telephone line okHz to 1.1MHz frequency bandwidth is divided into 256 sub-bands for 4.3khz. Which, 4khz following bands were used to transfer POTS (plain old telephone service), 20KhZ to 138KhZ band used to transmit uplink signal, 138KhZ to 1.1MHZ band used to transmit the downlink signal. DMT technology can be adjusted according to the situation in the line by the number of bits modulated on each channel, in order to fully utilize the line. In general, the sub-channel signal to noise ratio is, the more the number of bits modulated on the channel, if a subchannel hungry poor SNR, then abandoned. Currently, ADSL can reach up 640kbps, downlink data transfer rate of 8Mbps. Can be seen by the above, for the original telephone signals, still using the original frequency band, and the ADSL-based services, using the voice band unexpected. Therefore, the original telephone services are not affected. MIIT: 2015 broadband access rate should reach 8Mbps reporter from the "Broadband China" 2015 special action MIIT 26 meeting mobilization teleconference informed: Ministry announced on the 26th main guiding objective "Broadband China" 2015 special action Shenyang Peng Bo broadband how, proposed broadband network capacity, speed, etc. will achieve jump. Minister of Industry and Miao Wei said that in 2015, jumped to achieve broadband network capabilities. Added FTTH covering 80 million households broadband tariff Shenyang Peng Bo, the new 14,000 administrative villages broadband, promote the city to become the first batch of "all-optical network city" so that the county 4G network coverage and developed towns. In addition, the popularity of the scale and the speed will increase, the use of the access rate of 8Mbps and above accounted for 55% of broadband users Peng Bo broadband tariff, users continue to improve the online experience. In order to enhance the user's Internet experience, Chongqing Great Wall Broadband continuous self-improvement, increasing broadband speeds, increase network stability, Peng Bo launched 100M broadband package, allowing users to experience the major fast and stable network, "Broadband China" strategy implementation of their contribution to a force. Chongqing Great Wall Broadband launched 100M broadband download speeds of up to about 10M per second, to meet the multiple terminals mobile phone, computer, pad, etc. At the same time the Internet, so that every member of the family can enjoy a fully customized web surfing, online multiplayer playing games, watching HD movies, download, etc., everything smooth. Shenyang Peng Bo Feng _ broadband tariff and Information Technology Center (certified) _ Peng Bo broadband provided by the Shenyang City HSBC and IT center. Shenyang abundance and Information Technology Center (www.4000010001.com) (www.tz1288.com) Liaoning Shenyang, e-commerce leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. IT center in abundance and leadership with the staff warmly welcome all inquiries negotiations to create abundance and IT center a better future.