Digital Networks: Thte Digital Subscriber Line

Introduction: DSL (Digital Subscriber Line) was originated from a telephone company that wanted to provide an end-to-end digital network as a service and was named "Integrated Services Digital Network (ISDN)". Low communication speed is one of the main drawbacks of ISDN. Low speed is due to "crosstalk" between telephone lines, and crosstalk is only electromagnetic coupling between lines. Crosstalk from all other telephone lines causes large noise and the data rate decreases.

Digital subscriber line (DSL) is a set of technologies that provide digital data transmission over the lines of a local telephone network. DSL originally represented a digital subscriber line. In telecommunications marketing, the term DSL is widely understood as an asymmetric digital subscriber line (ADSL). This is the most commonly installed DSL technology. DSL service can be used simultaneously with wired phone service on the same telephone line. This is possible because DSL uses a higher frequency band for data separated by filtering. On the client side, the DSL filter on each socket eliminates high frequency interference and can use both phone and data.

Introduction: DSL (Digital Subscriber Line) was originated from a telephone company that wanted to provide an end-to-end digital network as a service and was named "Integrated Services Digital Network (ISDN)". Low communication speed is one of the main drawbacks of ISDN. Low speed is due to "crosstalk" between telephone lines, and crosstalk is only electromagnetic coupling between lines. - Color is a very few mammalian features. In the book on K. Tansely's visual system, a visual commentary on vertebrates states: The word tricomatic comes from the theory advocated by the French physiologist Palmer in 1777.

Abbreviation for Asymmetric Digital Subscriber Line - This is a Digital Subscriber Line (DSL) broadband that uses a telephone line for network transmission. It is installed on a telephone line to transmit telephone service and ADSL data at the same time. To enable this feature, the subscriber needs a special modem and needs to be within 2 to 2.5 miles from the supplier's office. Normal ADSL download speed is 5 ~ 9 Mbps, upload speed is 16 ~ 640 kbps. This type of access is designed to meet the needs of users who frequently download and do little or no uploading.