All About ADSL Modem

ADSL stands for asymmetric digital subscriber line. It is a type of DSL broadband internet connection technology. One of its great achievements is more quantity of data which can be sent to already accessible copper telephone lines. They depict an advanced form of traditional modem lines. The hunger of the end-users for fast surfing speed of internet has led to many inventions in this modern time. ADSL modem is a perfect example to represent one of those inventions. There is a specific attachment of a special filter connected to the user's telephone line which enables both ADSL and genuine telephone services to be run in synchronization. This special filter is called micro filter.
The construction features of an ADSL calls for the services of subscribers and ADSL modem which should be kept in close geological vicinity to the internet service provider's central office. This is mandatory to avail the best services that people can attain from the asymmetry of the digital subscriber line. The distance between the ISP office and subscriber should be in a radius of maximum 2.5 miles. The upstream rate of ADSL is 16 to 640 Kbps and its downstream rate is 1.5 to 9 Mbps which makes it preferable over all the other connections available in end user's close proximity.
One of the significant parts of ADSL technology is represented by ADSL modem. This modem provides a popular and cost effective solution for end users. It enables the data transfer directly to the personal computer of the user. The cost of this modem varies according to the user's demand for the speed variations in the server. There are many options with the variations of upstream and downstream frequencies according to the capabilities and location of the users. The minimum available configuration is 1.5 Mbps and maximum is 8 Mbps. There is another in-between configuration of 6.1 Mbps along with 64 Kbps duplex.
ADSL modem is basically of three types. These three types are Ethernet, PCI and USB. The main advantage of ADSL modems that it can easily create multiple channels in order to transfer the data. For this, the ADSL modems divide the bandwidth available in two different ways - Echo cancellation and Frequency Division Multiplexing (FDM). The FDM, Frequency Division Multiplexing assigns 1 band for the upstream data while another for downstream data. So, it can be said that in spite of such balanced capabilities of ADSL modem, the internet users who use modems should not be frightened with technological capabilities of modem.
RealTime Systems Ltd. provides reliable networking products such as Lease line modems, enterprise routers, web cameras and many more. It also manufacturing and sales of IT networking, Telecom access and on-line ups.
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