D Link 2003070024-1 Users Manual
D-Link
DWL-AG520
Tri-mode Dualband
Wireless PCI Adapter
Manual
TM
Air Xpert
Building Networks for People
Contents
Package Contents ................................................................................3
Introduction............................................................................................4
Wireless Basics ....................................................................................6
Getting Started ....................................................................................10
Using the Configuration Utility ..............................................................13
Networking Basics ..............................................................................20
Troubleshooting...................................................................................33
Mobile of end product..........................................................................38
2
Package Contents
Contents of Package:
■ D-Link Air Xpert DWL-AG520
Tri-mode Dualband Wireless PCI Adapter
■ Manual, Warranty and Driver on CD
■ Printed Quick Installation Guide
If any of the above items are missing, please contact
your reseller.
System Requirements of Configuration:
■ A desktop computer with an available 32-bit PCI
2.2 solt , with an operating voltage of 5V.
TM
■ Windows XP, Windows 2000, Windows ME, or
Windows 98SE
■ At least 128 MB of memory and a 500MHz
processor
■ An 802.11a, 802.11b or 802.11g Access Point (for
infrastructure Mode) or another 802.11a, 802.11b,
or 802.11g wireless adapter (for Ad-Hoc;
peer-to-peer networking mode).
3
Introduction
The D-Link Air Xpert DWL-AG520 Tri-Mode Dualband Wireless PCI Adapter, when
installed into your desktop PC, provides you a versatile way to wirelessly connect to any
one of three available wireless networks - 802.11b and the newer, faster 802.11g and
802.11a that operate in two discrete, non-interfering frequency bands, 2.4GHz and 5GHz.
The versatile 802.11a/b/g compatible DWL-AG520 gives you an immediate way to expand
to your existing 802.11b network and protect your overall wireless network investment.
When you add an 802.11a/b/g access point (D-Link Air Xpert DWL-7000AP) or router (DLink Air Xpert DI-774), your network will be capable of handling up to four times the user
load of your current 802.11b network.
Along with compatibility to earlier 802.11b networks, the DWL-AG520 also offers the
robust speed (up to 54Mbps) of the newer 802.11g and 802.11a standards, so that
everyone can work faster and more efficiently. Additionally, the 802.11a 5GHz band
offers a way to quickly transfer data in a frequency range that does not experience
interference or interruptions from cordless phones, microwave ovens and other devices
that use the 2.4GHz frequency band.
In addition to offering faster data transfer speeds when used with other 802.11a or
802.11g products, the DWL-AG520 has the newest, most advanced security features
available today, using the draft 802.11i security standard. These additional security
features are optional. You may choose to continue using the familiar WEP security, or
you may not wish to utilize security features at all. However, if you do choose to use the
DWL-AG520’s powerful security features with other WPA (WiFi Protected Access) and
802.1x compatible products in a network with a RADIUS server, the security features
will include:
TM
WPA*: A new security feature, Wi-Fi Protected Access authorizes and identifies users
based on a secret key that changes automatically at a regular interval.
WPA uses TKIP (Temporal Key Integrity Protocol) to change the temporal
key every 10,000 packets (a packet is a kind of message transmitted over a
network). This ensures much greater security than the standard WEP security.
(By contrast, the older WEP encryption required the keys to be changed
manually).
802.1x: Authentication is a first line of defense against intrusion. In the Authentication
process the server verifies the identity of the client attempting to connect to the
network. Unfamiliar clients would be denied access.
Users that choose not to incorporate a RADIUS server in their network may also use the
optional enhanced security features, or they may wish to continue using the standard
WEP security, or they may choose to use no security at all. However, if you do wish to
experience the enhanced security of the DWL-AG520 in conjunction with other draft
802.11i compatible products, without a RADIUS server, the Pre Shared Key mode of
WPA will assign a new security key every time the DWL-AG520 connects to the draft
802.11i Access Point. If you choose to enable the enhanced security features of the
DWL-AG520, you need only to input your encryption information once in the configuration
menu. No longer will you have to manually change the WEP key to ensure security with the DWL-AG520, you will automatically receive a new key every time you connect,
vastly increasing the safety of your communications.
*WPA will be available Q3 2003 as a driver download
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Features
Dualband versatility - With the DWL-AG520, you have the option of using one
!
of two frequencies. If the 2.4GHz frequency band is experiencing interruptions
and interference from cordless phones, and microwave ovens, you have the option of using the 5GHz band with 802.11a enabled devices.
Compatible with 802.11a, 802.11b and 802.11g Devices - Fully compatible
!
with the IEEE 802.11a, 802.11b and 802.11g standards, the DWL-AG520
can connect with existing 802.11b routers, access points and cards. That means
you can still communicate with colleagues and friends while you have the ability
to link to even more wireless networks.
Better Security with 802.1x and WPA* -With the DWL-AG520 in your desktop
!
PC you can securely connect to a wireless network using 802.1x for wireless
authentication, as well as WPA (Wi-Fi Protected Access) providing you a much
higher level of security for your data and communications than has previously
been available. To use the DWL-AG520’s 802.1x security features, your Operating System and all the devices in your network must support it. Windows XP
supports 802.1x and a free 802.1x upgrade is available for Windows 2000. Check
the manufacturer’s website for available 802.1x upgrades for other operating systems.
32-bit PCI Performance/Plug & Play Connectivity -The DWL-AG520 is a
!
powerful 32-bit PCI adapter that installs quickly and easily into desktop PCs,
and when used with other D-LinkAirXpert ABG products will automatically
connect to the network out of the box.
User-friendly configuration and diagnostic utilities
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LEDs
LED stands for Light-Emitting Diode. The DWL-AG520 has the following
LEDs:
LED
Activity
Power
*WPA will be available Q3 2003 as a driver download
A blinking light indicates data is being transmitted
A steady light indicates a connection to an Access Point
LED Activity
5
Wireless Basics
D-Link wireless products are based on industry standards to provide easy-touse and compatible high-speed wireless connectivity within your home, business
or public access wireless networks. D-Link wireless products will allow you
access to the data you want, when and where you want it. You will be able to
enjoy the freedom that wireless networking brings.
A WLAN is a cellular computer network that transmits and receives data with
radio signals instead of wires. WLANs are used increasingly in both home and
office environments, and public areas such as airports, coffee shops and
universities. Innovative ways to utilize WLAN technology are helping people to
work and communicate more efficiently. Increased mobility and the absence of
cabling and other fixed infrastructure have proven to be beneficial for many
users.
Wireless users can use the same applications they use on a wired network.
Wireless adapter cards used on laptop and desktop systems support the same
protocols as Ethernet adapter cards.
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Wireless Basics (continued)
People use WLAN technology for many different purposes:
Mobility - Productivity increases when people have access to data in any
location within the operating range of the WLAN. Management decisions based
on real-time information can significantly improve worker efficiency.
Low Implementation Costs – WLANs are easy to set up, manage, change
and relocate. Networks that frequently change can benefit from WLANs ease
of implementation. WLANs can operate in locations where the installation of
wiring may be impractical.
Installation and Network Expansion - Installing a WLAN system can be
fast and easy and can eliminate the need to pull cable through walls and ceilings.
Wireless technology allows the network to go where wires cannot go - even
outside the home or office.
Inexpensive Solution – Wireless network devices are as competitively priced
as conventional Ethernet network devices.
Scalability – WLANs can be configured in a variety of ways to meet the needs
of specific applications and installations. Configurations are easily changed
and range from peer-to-peer networks suitable for a small number of users to
larger infrastructure networks to accommodate hundreds or thousands of
users, depending on the number of wireless devices deployed.
The DWL-AG520 is compatible with the following wireless products:
D-Link Air Xpert DWL-AG650, D-Link AirPro DWL-A650, D-Link
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AirPlus DWL-650+, D-Link AirPlus Xtreme G DWL-G650,
D-Link AirPro DWL-AB650
Wireless Cardbus Adapters used with laptop computers
D-Link AirPro DWL-A520 and D-Link AirPlus DWL-520+,
!
D-Link AirPlus Xtreme G DWL-G520, another D-Link Air Xpert
DWL-AG520, and D-Link AirPro DWL-AB520
Wireless PCI cards used with desktop computers
D-Link AirPlus DWL-900AP+, D-Link AirPlus Xtreme G DWL-
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2000AP and D-Link Air Xpert DWL-7000AP
Wireless Access Points
D-Link AirPlus DI-614+, D-Link AirPlus Xtreme G DI-624 and
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D-Link Air Xpert DI-774
Wireless Broadband Routers
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