D-Link DSL-504G User Manual - Introduction

DSL-504G 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-504G 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-

504G 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-504G 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.