ADSL FAQ
What is ADSL?
What are the advantages of ADSL over dialup and other types of connections?
How does ADSL work?
What should you do to become an ADSL subscriber?
Is it possible to use the phone while the line is being used by the ADSL connection?
Is it possible to make two or more computers share an ADSL connection?
What factors affect the performance of an ADSL connection? Is the performance of the ADSL connection same in all regions?
What are the features of ADSL technology in TRNC?
What is a Static IP-address and where is it used ?

 

 

What is ADSL?

 

ADSL (Asymmetric Digital Subscriber Line) is a high-speed Internet access service that utilizes existing copper telephones lines to send and receive data at speeds that far exceed conventional dial-up modems.  ADSL uses standard telephone lines to transmit upstream and

downstream data on a digital frequency, which sets these data streams apart from the analog signals telephones and fax machines use.  Because the ADSL signal is operating on a different frequency, the telephone can be used normally, even when surfing the Web with ADSL service.

 

 

 

What are the advantages of ADSL over dialup and other types of connections?

 

The higher the frequency that is used to send a signal over a piece of wire, the faster the signal will degrade over distance. Because ADSL uses very high frequencies, there are limits over the distance that the signal can be reliably received. The 512Kbps ADSL services have a maximum range of 6 km. Because of the higher bandwidth required, 2Mbps ADSL services have a slightly smaller radius of 3.5km.

This means that only customers within this radius of the telephone exchange can take advantage of ADSL.

 

Second main parameter affecting the speed of your connection will be your Internet Service Provider's bandwidth capacity.

 

 

Advantages of ADSL:


Uninterrupted Connection - Unlike regular dialup phone service,   ADSL provides continuously-available, "always on" connection. You do not have to problems of not being able to connect your ISP or   failed connection attempts.


Simultaneous Data and Voice Transmission - ADSL service, can provide both voice and data over the same telephone at the same time.


Faster Speeds over ISDN and Dial-Up - ADSL supports data rates of from 128 kbps up to 2 MBps and even higher rates if desired. Since max connection rate with dial-up connections is only 56 kbps, it is obvious that ADSL is far superior in this sense.


Faster Speeds, Chipper Costs - Since ADSL uses your available copper lines, there are no extra charges or investments to be made to switch to ADSL. This is a great    advantage, compare to the initial investment costs that has to be made for getting a wireless    or leased line internet connection. Moreover, you do not get extra bill for using your    regular copper line for internet connection. You only pay for your voice data transmission.

 

 

 

How does ADSL work?

 

The ADSL broadband service makes use of your existing local telephone line by splitting the line into two distinct channels - one for voice and the other for the high speed data connection. The high speed data connection uses a higher frequency range not used in normal voice communications. The ADSL signal is carried by two broadband modems - one in your home / office and the other in the local telephone exchange. ADSL modems use digital coding techniques to squeeze up to 99% more capacity out of a phone line without interfering with your regular phone services.

 

 

What should you do to become an ADSL subscriber?   

 

Please fill out a Comtech-ADSL subscription form. Here.

 

 

Is it possible to use the phone while the line is being used by the ADSL connection?

 

The most appealing feature of ADSL is the ability to use the same old phone line to make calls and and surf the Internet simultaneously. A passive splitter also known as a low-pass/high-pass filter separates the voice and ADSL signals onto different wire pairs. The customer premise splitter splits two wires to activate phone jacks and the other two to activate data jacks. At the local telephone exchange switchborad, voice calls are handed to the PSTN (public switched telephone network)  and the data signals to your ISP’s router.

 

 

Is it possible to make two or more computers share an ADSL connection?

 

Yes,  with static connections you can connect more than one computer to share your ADLS connection using a third party router. For more information you can call Comtech at +0 392 228 84 44.

 

 

 What factors affect the performance of an ADSL connection? Is the performance of the ADSL connection same in all regions?

 

Quality of the phone line at your residence. Better copper wiring can achieve somewhat faster DSL speeds.

 

Length of the phone line between the residence and the phone company hub. ADSL technology is "distance sensitive" because its performance decreases significantly as you get further away from this hub.

 

Your ISP’s bandwidth capacity.

 

Spyware on computer(s). Even when the ADSL network may be functioning at full speed, spyware programs may be consuming the bandwidth, robbing your DSL speed. Anti-spyware programs should be run regularly on networks to prevent this problem.

 

 

What are the features of ADSL technology in TRNC ?

 

ADSL being set up in our country is ADSL2+ technology. This technology differs from other ADSL technology with having faster download rates.

 

 

What is a Static IP-address and where is it used ?

 

 Your dail-up, ISDN and ADSL  internet connections are done via dynamic IP’s as oppose to static IP. However, if you want to have access to a web server, FTP server or to a mail server, you need to have a static IP.  A static IP address is a number that is assigned to a computer by an Internet service provider (ISP) to be its permanent address on the Internet. Computers use IP addresses to locate and talk to each other on the Internet, much the same way people use phone numbers to locate and talk to one another on the telephone.

 

If you think that your home or office internet connection will need a static IP please call Comtech at +0 392 228 84 44 for further assistance.