How does ADSL broadband work?
ADSL broadband operates over a normal telephone line. This means that there is no need to dig up any roads to replace cable and install it. The ADSL broadband signal is carried by two ADSL broadband modems – one in the end user’s premises and one in the local exchange. These ADSL broadband modems are designed to exploit the physical transmission capabilities of the copper line to the maximum extent. The resultant ‘broadband’ medium is used to achieve much higher data rates than were previously possible. Two ‘splitters’ (filters), one in your premises and one in the BT exchange, separate the telephony signal from the ADSL broadband signal. This means that telephone calls can be made at the same time that data is being sent or received (i.e. a customer can surf the Internet and still make telephone calls concurrently).
