What is ADSL Modem ?

ADSL modem or a DSL modem is a device used on a single computer or router to a DSL phone line to connect to a broadband service. As with other modems, it is a type of transceiver. It is also a DSL or ATU-R transceiver. The abbreviation NTBBA (Network Termination broadband adapter, broadband access network termination) is also common in some countries.

Some ADSL modems also manage the connection and sharing of ADSL services with a group of machines, in this case the unit as a DSL router or residential gateway. ADSL routers have a function block, holding the frame, while other functional blocks of asynchronous transfer mode segmentation and reassembly, perform IEEE 802.1D bridging and / or IP routing. Typical user interfaces are Ethernet and USB. Although an ADSL modem to work like a bridge does not need any IP address, it is assigned to one Brus for the administration.