Basic information on ADSL equipment currently used by our office and introduction to the network. With the explosive development of the Internet, commercial applications and multimedia and other services on the Internet have also been rapidly promoted. To enjoy various services on the Internet, users must access the network in some way. In order to realize the digitization and broadband of user access networks and improve users' Internet speed, fiber-to-the-home (FTTH) is the inevitable direction for the future development of user networks. However, due to the high cost of fiber-optic user networks, it will not even be possible in the next ten years or even In a few decades, most user networks will continue to use existing copper wire loops, so in recent years people have proposed a number of transitional broadband access technologies, including N-ISDN, Cable Modem, ADSL, etc., among which ADSL ( Asymmetric user digital loop) is the most promising and competitive one.
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