What are the characteristics of adsl access method?

Characteristics of adsl access mode: 1. High-speed transmission; provides asymmetric transmission bandwidth for uplink and downlink. 2. Internet access and phone calls do not interfere with each other; data signals and telephone audio signals are modulated in their respective frequency bands based on the frequency division multiplexing principle without interfering with each other. 3. Exclusive bandwidth, safe and reliable. Each node uses a broadband switch to process and exchange information, and information transmission is fast and safe.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What are the characteristics of adsl access method?

Asymmetric Digital Subscriber Line (ADSL, Asymmetric Digital Subscriber Line) is the most popular type of digital subscriber line (xDSL, Digital Subscriber Line) service.

The international standard for ADSL was approved in 1999 and is called G.dmt. It allows up to 8 Mbps download speed and 1 Mbps uplink speed. This standard has been surpassed by ADSL2 released in 2002. After continuous improvement, the downlink speed can now reach 12 Mbps, and the uplink speed is still 1 Mbps. Now, we have ADSL2, which uses double the bandwidth (2.2 MHz) on twisted pairs to double the downstream speed to 24 Mbps.

The main features of ADSL:

(1) High-speed transmission

Provides uplink and downlink asymmetric transmission bandwidth;

(2) Internet access and phone calls do not interfere with each other. Data signals and telephone audio signals are modulated in their respective frequency bands based on the principle of frequency division multiplexing without interfering with each other. You can make or receive calls while surfing the Internet, avoiding the need for dial-up Internet access. The trouble of not being able to use the phone;

(3) Exclusive bandwidth, safe and reliable

Each node uses a broadband switch to process and exchange information, and the information transmission is fast and safe.

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