A Digital Subscriber Line (DSL) modem is a device used to connect a computer or router to a telephone circuit that has Digital Subscriber Line service configured. Like other modems, it is a type of transceiver. It is also called a DSL Transceiver or ATU-R (for ADSL Transceiver Unit-Remote). The acronym NTBBA, which stands for network termination broad band adapter, is also common in some countries.
A DSL modem, also referred to as an asymmetric DSL (ADSL) modem, provides service that is similar, with the exception of speed, to that provided by a dial-up modem. However, there are some major differences in the setup and technological make up of DSL modems. For example, dial-up modems are frequently, though not always, installed inside computer terminals. By contrast, a DSL modem is typically external and connects to a computer via a USB or Ethernet port.
All Zoom ADSL modems provide superior data rate transmission and extended reach, even over challenging line conditions. The Zoom ADSL X6, X6v, X5, X4 and X3 add powerful gateway and router features to allow a high-speed ADSL Internet connection to be shared by as many as 253 computers on a network. The X6v provides an integrated VoIP telephone adapter. The X6 and X6v add wireless networking.
The Zoom ADSL X6 is an all-in-one solution for sharing ADSL service. The X6 provides all the features you'll need to make your ADSL access secure, easy to share, and easy to use. A built-in wireless-G router enables wireless networking to computers, notebooks, and other devices with 802.11g or 802.11b wireless capability. The X6 has Quality of Service (QoS) to guarantee upstream speed when you need it for applications like on-line gaming and Internet Telephony. An auto configuration wizard in the X6 detects ADSL network settings and makes DSL modem setup easy for all ADSL services, including Verizon, ATeT, Bell South and Qwest. ADSL 2/2+ support provides modem data speeds up to 24 Mbps.