D-Link DSL-500T - Manual (Page 13)

DSL-500T ADSL Router User’s Guide
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Introduction
This section provides a brief description of the Router, its associated technologies and a list of Router features.
Router Description and Operation
The DSL-500T ADSL Router is designed to provide a simple and cost-effective ADSL Internet connection for a
single computer through the Ethernet port, or use it to bridge your Ethernet LAN to the Internet. The DSL-500T
combines the benefits of high-speed ADSL technology and LAN IP management in one compact and convenient
package. ADSL technology enables many interactive multi-media applications such as video conferencing and
collaborative computing.
The Router is easy to install and use. The DSL-500T connects to single computer or an Ethernet LAN via a
standard Ethernet interface. The ADSL connection is made using ordinary twisted-pair telephone line with
standard connectors. Multiple PCs can be networked and connected to the Internet using a single Wide Area
Network (WAN) interface and single global IP address.
The Router supports transparent bridging and can be used for IP packet routing over the Internet. Cost saving
features of the Router such as NAT (Network Address Translator) and DHCP (Dynamic Host Configuration
Protocol) improve administration efficiency and improve security for your private network. The advanced
security enhancements, packet filtering and port redirection, can help protect your network from potentially
devastating intrusions by malicious agents from outside your network.
What is ADSL?
Asymmetric Digital Subscriber Line (ADSL) is an access technology that utilizes ordinary copper telephone
lines to enable broadband high-speed digital data transmission and interactive multimedia applications for
business and residential customers.
ADSL greatly increases the signal carrying capacity of copper telephone lines without interfering with regular
telephone services. For the ADSL user, this means faster downloads and more reliable connectivity. ADSL
devices make it possible to enjoy benefits such as high-speed Internet access without experiencing any loss of
quality or disruption of voice/fax telephone capabilities.
ADSL provides a dedicated service over a single telephone line operating at speeds of up to 8 Mbps downstream
and up to 640 Kbps upstream, depending on local telephone line conditions. A secure point-to-point connection
is established between the user and the central office of the service provider.
D-Link ADSL devices incorporate the recommendations of the ADSL Forum regarding framing, data format,
and upper layer protocols.