DSL-504T DSL 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-504T ADSL Router is designed to provide a simple and cost-effective ADSL Internet connection
for individual computers through the Ethernet ports, or use it to bridge your Ethernet LAN to the Internet.
The DSL-504T 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-504T connects to computers 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.
Summary of Contents for DSL-504T
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