Before the Internet connection existed, through ADSL, we had to use a modem link, which every time we used the phone, we couldn’t access to surf the web and vice versa.
This evolved considerably when ADSL technology was created , which allows us, through its different channels, to send the voice through one of them and use the rest for digital communication. As we continue moving forward in technology, a new class of network, called VDSL , has emerged.
Thanks to this latest development, we can have really amazing connections . To know a little more about each of these networks, we suggest you read the following article where we will show the differences that exist between each one, as well as we will recommend a true speed test.
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VDSL and ADSL what are and how each type of Internet connection works ?
Today we need, for our work, studies or just for fun, to have the maximum possible Internet speed, which is why the constant evolution in this kind of topics.
There are different types of networks that vary according to the connection we can obtain to upload or download data . Two widely used networks are ADSL and VDSL, which we will explain below.
VDSL network
VDSL technology ( Very High Transfer Rate Digital Subscriber Line ) is one that allows us to access the Internet via broadband via the electromagnetic impulses transmitted by twisted pair cables that has the phone line.
It is an evolution of ADSL, since it allows the possibility of transmitting symmetrically or asymmetrically using 4 channels to transmit data , of which 2 is used for downloading and the others for rise, thereby substantially increasing the speed of the Internet.
The symmetrical speed is 26 Mbps , while we can reach up to 52 Mbps in uploads and for downloads we can get 12 Mbps, thus being much higher than the ADSL.
The speed of connection will be determined according to the distance that exists between our router and the exchange that emits , being more efficient when they are closer.
ADSL network
ADSL is the analog mode transmission of a broadband signal through a copper cable. Its translation into Spanish would be Asymmetric Digital Subscriber Line , it is called that because the bit rate per second of upload is not the same as download, the latter being much higher.
It uses 3 channels, where one is to transmit the voice and the other two, more frequently, are used for digital information . The maximum speed it can reach is 24 Mbps and we can upload up to 2 Mbps for the ADSL2 + variation.
Thanks to this technology, it can currently be used for the transmission of high-quality digital television, especially in places where there is no fiber optic coverage.
The maximum distance you have for the least possible interference is between 5.5 km and 10 km to the central.
What are the main differences between an ADSL connection and a VDSL?
The differences that exist between an ADSL Internet connection network and another VDSL are as follows:
- Speed : A connection with VDSL is much faster, since it can reach between 52 Mbps and 100 Mbps download (the latter corresponds to VDLS2) while, to upload , we can obtain a speed of 12 Mbps. For ADSL2 + it is 24 Mbps and 2 Mbps respectively. In its first version, the Asymmetric Digital Subscriber Line reaches between 8 Mbps and 1 Mbps.
- Channels : ADSL uses 3 channels, one for the voice and the other two used to download data and the remaining to upload them. The VDSL network works with four channels, using two for upload and 2 for data download, thus being much faster and with greater bandwidth.
- Symmetry : Remember that this concept refers to the parity that exists between the upload and download, being symmetric when the speed data is equal. There is no symmetry in Asymmetric Digital Subscriber Line , while the same is not true for a VDSL network, since we can achieve up to 26 Mbps.
As we mentioned above we can achieve for VDSL, a speed of 52 Mbps and 12 Mbps for data upload and download respectively. Having a symmetric speed of 26 Mbps .
For those networks VDSL2 we get a speed close to 100 Mbps down and up to 36 Mbps to upload data .
While for an ADSL network, we can take into account the latest generation called ADSL2 + , we can get up to 24 Mbps download . The bit rate per second will be measured at 2 Mbps.
All this will be possible as long as the status of the cable connection , such as the correct use of hardware in terms of its update and not obsolescence , are in perfect condition . In addition, the distance that exists with the exchange must also be taken into account.
In order to know exactly what the speed of Internet connection is, we will have to perform an effective speed test .