D Link DWL-G650-A1 User Manual
D-Link
DWL-G650
2.4GHz up to 54Mbps
Wireless Cardbus Adapter
AirPlusX
Manual
TREME
TM
G
Building Networks for People
Contents
Package Contents ................................................................................3
Introduction............................................................................................4
Wireless Basics ....................................................................................7
Getting Started ....................................................................................11
Using the Configuration Utility ..............................................................14
Networking Basics ..............................................................................21
Troubleshooting...................................................................................34
Technical Specifications ......................................................................39
Contacting Technical Support .............................................................. 41
Warranty and Registration ................................................................... 42
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Package Contents
Contents of Package:
D-Link AirPlusXtremeG DWL-G650
2.4 GHz - 54Mbps Wireless Cardbus Adapter
Manual and Warranty on CD
Quick Installation Guide
TM
If any of the above items are missing, please contact your reseller.
System Requirements for Configuration:
A laptop or notebook computer with an available 32-bit
Cardbus slot
Windows XP, Windows 2000, Windows Me, or Windows 98SE
At least 32 MB of memory and a 300 MHz processor
An 802.11g Access Point (for optimal performance), or an
802.11b Access Point (e.g., DWL-900AP) for Infrastructure
mode, or another 802.11g wireless adapter (DWL-G650) for
laptops or an 802.11b wireless adapter (e.g., DWL-520 for
desktops) for Ad-Hoc mode.
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Introduction
The D-Link AirPlusXtremeG DWL-G650 Wireless Cardbus Adapter is an enhanced
802.11g high-performance, wireless adapter that supports high-speed wireless networking
at home, at work or in public places.
Unlike most network cards, the DWL-G650 provides speeds of up to 54 Mbps (compared
to the standard 11 Mbps) when used with other D-Link AirXtremeG products. The 802.11g
standard is backwards compatible with 802.11b products. This means that you do not
need to change your entire network to maintain connectivity. You may sacrifice some of
802.11g’s speed when you mix 802.11b and 802.11g devices, but you will not lose the
ability to communicate when you incorporate the 802.11g standard into your 802.11b
network. You may choose to slowly change your network by replacing the 802.11b
devices with 802.11g devices gradually.
In addition to offering faster data transfer speeds when used with other 802.11g products,
the DWL-G650 has the newest, strongest, most advanced security features available
today. When used with other 802.11g WPA (WiFi Protected Access) and 802.1x
compatible products in a network with a radius server, the security features include:
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. (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.
TKIP: Temporal Key Integrity Protocol changes the temporal key every 10,000
packets ( a packet is a kind of message transmitted over a network.) This
insures much greater security than the standard WEP security.
AES: Advanced Encryption Standard offers much larger key sizes. At 128, 192,
or 256 bits, the AES keys are much stronger than the old WEP standard of
56 bits. It could take 149 trillion years to crack the code of an AES key, as
opposed to 1 second to crack an old WEP key.
TM
For home users that will not incorporate a radius server in their network, the security for
the DWL-G650, used in conjunction with other 802.11g products, will be much stronger
than ever before. Utilizing the Pre Shared Key mode the DWL-G650 will obtain a new
security key every time it connects to the 802.11g network. You only need to input your
encryption information once in the configuration menu. No longer will you have to manually
input a new WEP key frequently to ensure security, with the DWL-G650, you will
automatically receive a new key every time you connect, vastly increasing the safety of
your communications.
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The DWL-G650 is compatible with existing 802.11b devices such as the D-Link Air,
AirPlus and AirPro family of products including the DWL-520, DWL-520+ and the
DWL-AB520 Wireless PCI Adapter, the DI-714 Wireless Router/Access Point and the
DWL-120 Wireless USB Adapter. (When used with 802.11b devices, the DWL-G650
will reach speeds at up to 11Mbps.)
It is an ideal way to connect one laptop computer to a Wireless Local Area Network
(WLAN.) After completing the steps outlined in the Quick Installation Guide
(included in the package) you will have the ability to share information and resources,
such as files and printers, and take full advantage of a “connected” environment for
work or play!
The DWL-G650 includes software drivers for the most popular Microsoft Windows
operating systems (Windows XP, Windows 2000, Windows Me, Windows 98) and can
be integrated into a larger network, running, in either Ad Hoc mode (without an
Access Point) or Infrastructure mode (with an Access Point.) Please take a look at
our Getting Started section in this manual to see examples of typical network setups
using the DWL-G650 in both Infrastructure and Ad-Hoc modes.
This manual provides a quick introduction to wireless technology and its application
as it relates to networking. Take a moment to read through this manual and get
acquainted with wireless technology.
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Features
Fully compatible with the 802.11g standard to provide a wireless data rate of
up to 54Mbps
Backwards compatible with the 802.11b standard to provide a wireless data
rate of up to 11Mbps
WPA (Wi Fi Protected Access) authorizes and identifies users based on a
secret key that changes automatically at a regular interval
802.1x Authentication in conjunction with the radius server verifies the
identity of would be clients
TKIP (Temporal Key Integrity Protocol) changes the temporal key every
10,000 packets, ensuring greater security
AES (Advanced Encryption Standard) offers keys in 128, 192 or 256-bit size,
which are much larger key sizes than the standard WEP key of 56 bits.
Pre Shared Key mode means that the home user, without a server, will obtain
a new security key every time they connect to the network, vastly improving
the safety of communications on the network.
Utilizes OFDM technology (Orthogonal Frequency Division Multiplexing)
User-friendly configuration and diagnostic utilities
Operates in the 2.4GHz frequency range
LEDS
LED stands for Light-Emitting Diode. The DWL-G650 has the following
LEDs:
LED
Power
Activity
A steady light indicates a connection to a power source
A blinking light indicates network activity
LED Activity
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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. Strictly adhering to the IEEE standard, the
D-Link wireless family of products will allow you to securely access the data
you want, when and where you want it. You will be able to enjoy the freedom
that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that
transmits and receives data with radio signals instead of wires. Wireless LANs
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.
Under many circumstances, it may be desirable for mobile network devices to
link to a conventional Ethernet LAN in order to use servers, printers or an Internet
connection supplied through the wired LAN. A Wireless Router is a device
used to provide this link.
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Wireless Basics (continued)
People use wireless LAN 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 (Wireless Local Area Networks) are
easy to set up, manage, change and relocate. Networks that frequently change,
both physically and logically, can benefit from WLANs ease of implementation.
WLANs can operate in locations where installation of wiring may be impractical.
Installation Speed and Simplicity - Installing a wireless LAN system can
be fast and easy and can eliminate the need to pull cable through walls and
ceilings.
Network Expansion - Wireless technology allows the network to go
where wires cannot.
Scalability – Wireless Local Area Networks (WLANs) can be configured in a
variety of topologies to meet the needs of specific applications or existing
infrastructures. Configurations are easily changed and range from peer-topeer 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-G650 is also compatible with 802.11b wireless products, which include:
2.4GHz Wireless Cardbus Adapters used with laptop computers
(D-Link Air DWL-650, D-Link AirPlus DWL-650+)
2.4GHz Wireless PCI cards used with desktop computers
(D-Link Air DWL-520, D-Link AirPlus DWL-520+)
Enhanced 2.4GHz Wireless Access Point
(D-Link AirPlus DWL-900AP+)
Enhanced 2.4GHz Wireless Broadband Router
(D-Link AirPlus DI-614+)
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Wireless Basics (continued)
Standards-Based Technology
The DWL-G650 Wireless Cardbus Adapter utilizes the new 802.11g standard.
The IEEE 802.11g standard is an extension of the 802.11b standard. It increases
the data rate up to 54 Mbps within the 2.4GHz band, utilizing OFDM technology.
This means that in most environments, within the specified range of this device,
you will be able to transfer large files quickly or even watch a movie in MPEG
format over your network without noticeable delays. This technology works by
transmitting high-speed digital data over a radio wave utilizing OFDM (Orthogonal
Frequency Division Multiplexing) technology. OFDM works by splitting the radio
signal into multiple smaller sub-signals that are then transmitted simultaneously
at different frequencies to the receiver. OFDM reduces the amount of crosstalk
(interference) in signal transmissions. The D-Link DWL-G650 will automatically
sense the best possible connection speed to ensure the greatest speed and
range possible.
802.11g offers the most advanced network security features available today,
including: WPA, 802.1x, TKIP, AES and Pre-Shared Key mode. These security
features are explained in more detail in the Introduction and the Features section
of this manual.
The DWL-G650 is backwards compatible with 802.11b devices. This means
that if you have an existing 802.11b network, the devices in that network will be
compatible with 802.11g devices at speeds up to 11Mbps in the 2.4GHz range.
Also based on the IEEE 802.11b standard, the DWL-G650 is interoperable with
existing compatible 2.4GHz wireless technology with data transfer speeds of
up to 11Mbps.
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Wireless Basics (continued)
Installation Considerations
The D-Link AirExtreme DWL-G650 lets you access your network, using a
wireless connection, from virtually anywhere. Keep in mind, however, that the
number, thickness and location of walls, ceilings, or other objects that the
wireless signals must pass through, may limit the range. Typical ranges vary
depending on the types of materials and background RF (radio frequency)
noise in your home or business. The key to maximizing wireless range is to
follow these basic guidelines:
1.
Keep the number of walls and ceilings between the DWL-G650 and
other network devices to a minimum - each wall or ceiling can reduce
your D-Link AirExtreme Wireless product’s range from 3-90 feet (1-30
meters.) Position your devices so that the number of walls or ceilings is
minimized.
2. Be aware of the direct line between network devices. A wall that is
1.5 feet thick (.5 meters), at a 45-degree angle appears to be almost 3
feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters)
thick! Try to make sure that devices are positioned so that the signal will
travel straight through a wall or ceiling for better reception.
3. Building Materials make a difference - a solid metal door or aluminum
studs may have a negative effect on range. Try to position wireless
devices and computers with wireless adapters so that the signal passes
through drywall or open doorways and not other materials.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical
devices or appliances that generate RF noise.
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Getting Started
There are basically two modes of networking:
Infrastructure – using an Access Point, such as the
DWL-900AP.
Ad-Hoc – directly connecting to another computer, for peer-to-
peer communication, using wireless network adapters on
each computer, such as two or more DWL-G650 wireless
network Cardbus adapters.
On the following pages we will show you an example of an Infrastructure
Network and an Ad-Hoc Network.
An Infrastructure network contains an Access Point or Router. To utilize the
full features of the DWL-G650 you will need to include a radius server in your
network. The Infrastructure Network example shown on the following page
contains the following D-Link network devices (your existing network may be
comprised of other devices):
A wireless Access Point - D-Link Air 900AP
A laptop computer with a wireless adapter -
D-Link AirPro DWL-G650
A desktop computer with a wireless adapter -
D-Link Air DWL-520
(802.11b devices have speeds up to 11Mbps)
A Cable modem - D-Link DCM-200
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Getting Started
Setting up a Wireless Infrastructure Network
1
2
3
5
4
Please remember that D-Link AirXtremeG wireless devices are pre-configured to
connect together, right out of the box, with their default settings.
For a typical wireless setup at home (as shown above), please do the
following:
You will need broadband Internet access (a Cable or DSL-subscriber line into
your home or office)
Consult with your Cable or DSL provider for proper installation of the modem
Connect the Cable or DSL modem to your broadband router (see the Quick
Installation Guide included with your router.)
If you are connecting a desktop computer to your network, install the D-Link Air
DWL-520 wireless PCI adapter into an available PCI slot on your desktop
computer. You may also install the DWL-520+.
(See the Quick Installation Guide included with the network adapter.)
Install the drivers for the D-Link DWL-G650 wireless Cardbus adapter into a
laptop computer.
(See the Quick Installation Guide included with the DWL-G650.)
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Getting Started
Setting up a Wireless Ad Hoc Network
Install the D-Link DWL-G520 Wireless Network adapter into one
laptop computer.
product for installation instructions.
Install another DWL-G650 into a laptop computer. See the Quick
Installation Guide included with the product.
See the Quick Installation Guide included with the
Set the wireless configuration for the adapters to Ad-Hoc mode, set
the adapters to the same channel, and assign an IP Address to
each computer on the Ad-Hoc network.
(See Box below)
IP Address
When assigning IP Addresses to the computers on the network, please
remember that the IP Address for each computer must be in the same
IP Address range as all the computers in the network, and the subnet
mask must be exactly the same for all the computers in the network.
For example: If the first computer is assigned an IP Address of 192.168.0.2
with a Subnet Mask of 255.255.255.0, then the second computer can be
assigned an IP Address of 192.168.0.3 with a Subnet Mask of 255.255.255.0,
etc.
IMPORTANT: If computers or other devices are assigned the same IP
Address, one or more of the devices may not be visible on the network.
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Using the Configuration Utility
If you wish to change the default settings or optimize the performance of the
DWL-G650, D-Link has included a configuration utility for this purpose. However, in Windows XP, you will instead use zero configuration utility.
Before you use the configuration utility for the DWL-G650, you must install the
drivers and the configuration utility from the CD-ROM that came with the DWL-
G650. (Please see the Quick Installation Guide that came with the product.)
After you have completed this installation and restarted your computer, you can
access the Configuration Utility at any time by clicking on the icon in your taskbar
at the bottom right corner, on the desktop.
After double-clicking on the icon in the taskbar (shown at right),
the Link Info window shown on the next page will appear:
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