In the modern era technology has become so important that mostly everything depends on technology. However, without the internet, technology would not have been possible. This brings DSL and ADSL in. The most broadly used form of internet connection is the Broadband internet. It is widely used because of its high speed and efficiency.
The two high-speed broadband Internet connections are DSL and ADSL. You can get them through your current telephone line. DSL stands for Digital Subscriber Line. ADSL stands for Asymmetric Digital Subscriber Line.
If you want to use DSL or ADSL it does not mean you have to upgrade your telephone line. These do not stand in the way of your regular telephone service, rather they can be used at the same time without any obstruction.
DSL vs ADSL
The main difference between DSL and ADSL is that DSL represents the internet which makes use of digital relations between a phone line and a modem. On the other hand, in ADSL the data sending speed is known as upstream and the data receiving steam is called downstream.
Comparison Table Between DSL and ADSL (in Tabular Form)
| Parameter of Comparison | DSL | ADSL |
|---|---|---|
| Full form | Digital Subscriber Line. | Asymmetric Digital Subscriber Line. |
| Type | DSL is the common term for Digital Subscriber Line. | ADSL is a type of DSL. |
| Speed | Upload and download speed is almost the same. | The download speed is faster as compared to the upload speed. |
| Part | DSL is the family of technology. | ADSL is a part of this family. |
| Nature | It is not asymmetric | It is asymmetric in nature. |
What is DSL?
The full form of DSL is Digital Subscriber Line. It represents the services that provide internet connections using a digital modem and an existing telephone network.
The main benefit of DSL is that you can use the internet connection even while making calls as it works within the frequencies. There will be no interruptions.
The only trouble is that one has to be near the telephone network to have high-speed internet. As you move far from the telephone network you may have a less speed internet connection.
The telephone services supply DSL which offers fast internet using an existing telephone network. The telephone copper wires have a large number of frequencies. Out of this, a small amount is used for telephone communications. Hence, both, the telephone as well as the DSL modem can be used simultaneously.
The different types of DSL are SDSL, VDSL, and ADSL.
The two main types are
- Symmetric DSL- In this type of connection, the upload and download speed is the same.
- Asymmetric DSL- The most famous type of DSL is Asymmetric DSL. People usually download more date than uploading. Hence, asymmetric DSL provides more download speed than upload speed.
Advantages of DSL
- It is broadly and easily available as it is built using existing telephone lines.
- The cost of DSL is less as compared to satellite or broadband connections.
- You can use internet connections even while making calls.
Disadvantages of DSL
- One has to be near the telephone in order to have a high-speed internet connection.
- These cost more than other faster types of connections.
What is ADSL?
The full form of ADSL is Asymmetric Digital Subscriber Line. ADSL is a technology that offers high-speed internet connection through existing telephone lines.
In the ADSL network, the data sending speed is called upstream, and the data receiving speed is called downstream. Both speeds are not the same, rather their speeds differ from time to time. ADSL is a famous type of broadband available. This is so because it can be connected through existing telephone lines which almost every home has. It is quite simple to sign up at minimal charges.
When one uses an ADSL broadband network a microfilter is put into his phone connection which splits up the frequency of his phone line and his broadband connection. With the help of this micro-filter and the ADSL modem, he can use the web even while chatting on the phone.
In ADSL, the word ‘asymmetric’ implies that the download speed is higher than the upload speed. It has a downstream rate from 1.5 to 9 Mbps and an upstream rate of 16 to 640 Kbps. ADSL supplies a high-quality, good internet connection. However, if you move away from your telephone network, then you may have a slower internet connection.
Main Differences Between DSL and ADSL
- DSL is the general term for the Digital Subscriber line, whereas ADSL is a type of DSL.
- The full form of DSL is Digital Subscriber Line. The full form of ADSL is Asymmetric Digital Subscriber Line.
- ADSL represents the internet which makes use of digital relations between a phone line and a modem. In the ADSL type of network, the data sending speed is called upstream, and the data receiving speed is called downstream.
- In DSL the upload and download speed is almost the same. On the other hand, in ADSL the download speed is faster than the upload speed.
- DSL is the main family of technology, whereas ADSL is a part of this family.
- DSL is not asymmetric in nature whereas ADSL is asymmetric in nature.
Conclusion
Thus, we can say that the basic difference between DSL and ADSL is that DSL is the term for Digital Subscriber Line services, and ADSL, is a part of its types. The other types of DSL are SDSL and VDSL.
However, both DSL and ADSL are not very popular these days and are thought to be outdated networks. In place of these, people prefer using modems, wireless networks, satellites, and so on as these are comparatively faster. Moreover, telephones are also not in much use because of the upgrading technology. However, ADSL is often regarded to be the most used technology for broadband internet connections.
References
- https://dl.acm.org/citation.cfm?id=582879
- https://books.google.com/books?hl=en&lr=&id=VWaMdIq2w8QC&oi=fnd&pg=PR13&dq=DSL+and+ADSL&ots=rUiPDpr3RQ&sig=q8QpqLV2AaYfAEH92AeYya_rcpA