adsl technology mainly solves the problem of broadband access. adsl is the abbreviation of asynchronous digital subscriber loop. Through two line coding and modulation technologies, it can provide a downlink transmission rate of 6.1Mbps on traditional telephone lines, which is suitable for data For the development of services such as high-speed downloading and online TV, the uplink 640kbps can meet the needs of users for sending requests and uploading data.
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The main problem ADSL technology solves is broadband access.
ADSL is the abbreviation of Asynchronous Digital Subscriber Loop. Through two line coding modulation technologies (carrier-free amplitude modulation and phase modulation and discrete multi-tone), it can provide downlink (also called copper wire) over traditional telephone lines (also called copper wires). To the user direction) a transmission rate of 6.1Mbps. It is particularly suitable for high-speed downloading of data and the development of services such as online TV. Uplink 640kbps can also generally meet the needs of users in sending requests and uploading data.
Related introduction:
The main feature of ADSL technology is that it can make full use of the existing copper cable network (telephone line network). Installing ADSL equipment at both ends of the line can provide users with high Broadband services. Another advantage of ADSL is that it can coexist with ordinary telephones on the same telephone line. ADSL transmission can be performed while answering and making calls on an ordinary telephone line without affecting each other. Users access the broadband multimedia information network and WWW through ADSL. At the same time, they can watch film and television programs, hold a video conference, and download data files at a very high speed. This is not all, you can also use the phone on the same phone line. It does not affect other activities mentioned above. Installing ADSL is also extremely convenient and quick. When installing ADSL on an existing telephone line, there is no need to make any changes to the existing line except for installing an ADSL communication terminal at the user end. Using ADSL (Asymmetric Digital Subscriber Line) technology, through a telephone line, you can browse the Internet a hundred times faster than ordinary MODEM, and enjoy advanced data services such as video conferencing through online learning, entertainment, and shopping. , video on demand, online music, online TV, and the fun of online MTV have become a reality.
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