Standard installation of digital Subscriber line
ADSL (Asymmetric Digital Subscriber Line) Show
What is ADSL (Asymmetric Digital Subscriber Line)?ADSL (Asymmetric Digital Subscriber Line) is a technology that facilitates fast data transmission at a high bandwidth on existing copper wire telephone lines to homes and businesses. Unlike regular dial-up copper telephone line service, ADSL provides continuously available, always-on broadband connections. ADSL is asymmetric in that it uses most channels to transmit downstream to the user and only a small part for uploading information from the user. By 2000, ADSL connections and other forms of high-speed DSL were available in urban areas. ADSL simultaneously accommodates analog (voice) information and data on the same phone line. It is generally offered at downstream internet connection data rates from 512 kilobits per second (Kbps) to about 6 megabits per second (Mbps). With ADSL -- and other forms of DSL -- telephone service providers compete with internet service providers and varied internet connection methods, such as modems, Wi-Fi routers and fiber optic cable providers. How does ADSL work?ADSL works on existing copper phone lines by using a DSL filter, or splitter, to isolate the bands with higher frequencies so that the landline and the ADSL modem can be used at the same time. At the central office, or telephone exchange, the line ends at the DSL access multiplexer (DSLAM), where an additional splitter segregates the voice signal to the phone network. ADSL was designed to exploit the one-way nature of most multimedia communication in which large amounts of information flow toward the user and only a small amount of interactive control information is returned. It is a cost-effective method for internet access at faster speeds compared to a traditional dial-up connection. How does ADSL differ from SDSL?Symmetric DSL (SDSL) is also a broadband technology that transmits data over a telephone network. However, with SDSL, the downstream bandwidth -- from the network to the subscriber -- is the same as the upstream bandwidth. In ADSL technology, the download and upload speeds do not match. The intended purpose of ADSL service is to download content with the DSL modem and not serve content to others. A variety of options are available for accessing the internet, such as coaxial (TV) cable, expensive fiber-optic cables, satellite internet, and DSL. Digital Subscriber Line is typically the cheapest and most widely available of these options.What is DSL?The digital subscriber line (DSL) is a method of accessing the internet over a copper wire telecommunication line. DSL is a method of broadband access alongside cable internet, one of the most common forms of ISPs providing internet access to their customers. A DSL connection provides download and upload speeds in the range of 5 to 35Mbps while most analog and digital modems offer upload and download speeds of 1 to 10 Mbps.
Types of DSLThere are two types of DSL – Asymmetric or Symmetric:
You can read also: What is Local Area Network, Types, and Benefits of LAN? Providers can increase bandwidth downstream by reducing the bandwidth available upstream, which reflects the needs of most subscribers. Various forms of asymmetric DSL are:
When symmetric DSL services are offered, the bandwidth is provided for both uploads and downloads. Various forms of symmetric DSL are:
How does DSL Work?You will receive a special modem that only supports Digital Subscriber Line connections, or at least only their specific ones (i.e. there isn’t any compatibility with other Internet Service Providers). The computer is connected to your modem, and the modem is connected to a splitter so you can separate internet data from voice. In most cases, you will use ADSL lines to transport data back and forth from your house to the ISP hub. This stands for asynchronous digital subscriber line, which means one side of the connection (download) is larger than the other (upload). As a result, downloading is fast while uploading is slow to moderate. If your connection is farther away from the ISP hub, the quality and speed of your connection will suffer. Service providers will not exceed 18,000 feet (3+ miles). Thus, if you’re at the far end of the line, you’ll have less service than those that are closest, and if you’re outside the range, you won’t be able to access DSL. Equipment You Need for DSL InternetHigh-speed Internet using DSL requires some special equipment, most of which is included in the Digital Subscriber Line package from your telephone service provider. The equipment required for DSL internet include:
Users without a landline telephone at home can also have a dedicated line installed, otherwise, they can connect to DSL lines through the same phone jacks as their voice lines.
If your phone company provided the router to you, you can ask for the manufacturer’s support number. The phone company should be able to provide that number to you.
If you have a wireless DSL modem at home, you can plug it directly into your computer, either directly into your modem or into a router. The LED lights on the modem will indicate whether it is working correctly or not. You can read also: What is Local Area Network, Types, and Benefits of LAN? When a modem problem is indicated, a flashing connection light, check the connections, turn off the unit, and restart it. Telephone companies generally offer technical support for modems.
Both jacks will have the same line, but one will be filtered, so you will plug in your telephone. The other jack plugs into the connection leading to the modem. Pros and Cons to DSL InternetPros of DSL Internet are:
Cons of DSL Internet are:
Dialup vs. DSL vs. CableDialup: The internet connection of Dial-up is low. However, dial-up is sufficient for most basic tasks such as sending emails with small- to medium-sized attachments. A dial-up connection can also be used to access the majority of websites, but for sites with graphics, animations, or other tricks, dial-up will not be able to keep up. Dial-up cannot handle real-time viewing or video. DSL: ADSL (asymmetrical) and SDSL (symmetrical) are both types of broadband connections that are significantly faster than dial-up. You can enjoy DSL speeds of several hundred kbps to around 8 Mbps without tying up your phone line. Having DSL always available means no need to dial an ISP. Using such high speeds allows for high volume data utilization, loading websites quickly, as well as real-time video viewing and online gaming. Cable: Internet connections by cable are faster than dial-up, but they are also slower than DSL. Internet access is obtained by using a cable modem. Cable TV lines are used to share this connection. The data is transmitted using the TV channels reserved for upstream and downstream transmissions, respectively. Is DSL Right for me?Yes, DSL is a good choice for households that don’t need high-speed internet, so paying more for a plan you don’t need could result in greater costs. DSL has the advantage of being available almost everywhere, and it’s more cost-effective than satellite or broadband connections. Internet subscribers have dedicated circuits, just like traditional phone subscribers, so having several users on the network at once doesn’t affect DSL service negatively. A cable Internet connection may slow down during peak Internet usage periods due to neighboring subscribers sharing the cable. What is subscriber line installation?Specifically it covers installation of pole hardware, cable terminal, line wire and accessories; installation of main copper cable; splicing/jointing cable terminal to main aerial/underground copper cable splices; basic troubleshooting and correction on cable fault and error; installation POTS subscriber line; and ...
What is DSL installation?DSL OVERVIEW
Flows over Ethernet cable to the DSL modem. Passes through the DSL modem and continues over a phone cable to the wall jack. Travels to your outside phone box via the phone cabling inside your house's walls. On to the Central Office building in your neighborhood. Then goes to your ISP's network.
What is DSL standard?DSL (Digital Subscriber Line) is a high-speed Internet service that competes with cable Internet to provide online access to local customers. It operates over standard copper telephone lines like dial-up service, but is many times faster than dial-up. In addition, unlike dial-up, DSL does not tie up the phone line.
How does digital subscriber line connect to internet?Digital subscriber lines (DSLs) are high-speed Internet connections that use standard telephone lines. DSL uses the standard twisted-pair telephone lines that come into every home for normal telephone service. These lines, because they were developed only for voice signals, are restricted in bandwidth and data rate.
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