D-Link AirPlus DWL-G120 User manual

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High-Speed 802.11g
USB Wireless Adapter
DWL-G120
If any of the above items are missing, please contact your reseller.
CD-ROM (containing Drivers, Manual and Warranty)
This product works with the following operating
system software: Windows XP, Windows
2000, Windows Me, Windows 98SE
Before You Begin
You must have at least the following:
•You will need a computer with an available USB port to connect the
DWL-G120 Wireless USB adapter.
•At least a 300 MHz processor and 32 MB of memory
•An 802.11b/g Access Point (for Infrastructure Mode) or another
802.11b/g Wireless Adapter (for Ad-Hoc; Peer-to-Peer networking
mode.)
•Properly Installed and Working USB Controller.
DWL-G120 Wireless USB Adapter
Check Your Package Contents
These are the items included with your DWL-G120 purchase:
Mini-USB 2.0 Cable
©2003 D-Link Systems, Inc. All rights reserved. Trademarks or registered trademarks are the property of their respective holders. Software and
specifications subject to change without notice. 1G-BDWL-G120 09032003

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The Install Screen will appear.
The letter “D”
represents the
letter of the CD-ROM
drive. Your CD-ROM
drive may be a different
drive letter.
Turn on the computer and
Insert the D- Link AirPlus XtremeG
DWL-G120 Driver CD in the CD-ROM
drive.
The step-by-step instructions that follow are shown
in Windows XP. The steps and screens are similar
for the other Windows operating systems
Insert the D-Link CD-ROM Into Your
Computer Do NOT install
the DWL-G120
USB Wireless Adapter
into your computer
before installing the
driver software on the
D-Link CD!
Type “D:\Drivers\Setup.exe.”
Click OK
Click Next
Click Install Driver
D:\Drivers\setup.exe
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If the CD Autorun function does not
start automatically go to Start >
Run on your computer, then type
D:\Drivers\Setup.exe.” If it does
start, proceed to the next screen.

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Click Next
Click Finish
Click No, I will restart
my computer later
Antenna
Used to wirelessly
connect to 802.11b/g
networks.
Shut down Your Computer
Mini-USB 2.0 Port
Used to connect the
DWL-G120 to your
computer.
Link/Power LED
Link - Blinks when data is being
transmitted through the wireless
connection.
Power - Indicates that the DWL-G120
is properly installed in the computer.

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Installing the DWL-G120 Wireless USB
Adapter to Your Computer
A. Make sure to turn off your computer.
Restart Your Computer
When you restart your computer
this Found New Hardware
Wizard (Windows XP) screen
will appear:
C. Firmly insert the smaller plug
end of the USB cable into the
DWL-G120.
Select Install the software
automatically (Recommended)
Click Next
B. Firmly insert the larger plug
end of the USB cable into your
computer’s USB Port.

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For Windows XP/2000, a
screen similar to this Digital
Signature Not Found screen
may appear during the installa-
tion.
Click Continue Anyway
Windows XP will automatically
load the driver files.
Click Finish

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For Windows Me and 98SE, this
screen may appear.
Click Yes to reboot
Restart Your Computer and you are Finished!

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Your Installation is Complete!
After you have continued in Windows XP (or after the computer
restarts in the other Windows operating systems), the D-Link
AirPlus XtremeG DWL-G120 Configuration Utility will automati-
cally start and the utility icon will appear in the bottom right hand
corner of the desktop screen (systray). If this icon appears
GREEN, then you have successfully installed the DWL-G120,
are connected to a wireless network and are ready to commu-
nicate!
Double-click the utility icon to use
the configuration utility.
If the utility icon does not appear,
double-click the shortcut icon that
has appeared on your desktop.
Click the XP Networking icon
to use the Zero Configuration
Wireless Settings.
Click Advanced
For Windows XP, if you wish to use the AirPlus XtremeG Utility, please
do the following steps.
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Uncheck “Use Windows to
configure my wireless net-
work settings.”
Click OK

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Appendix
Using the Configuration Utility
B. SSID:The Service Set
Identifier is the name
assigned to the wireless
network. The factory SSID
setting is set to default
A. Status: Displays the
MAC Address of the
Access Point that is
associated with the
DWL-G120.
A
B
C
D
F
E
E. Link Quality /Signal
Strength: Displays the
wireless signal strength
for the DWL-G120
wireless connection to
the Access Point.
C. TxRate: The default
setting is Auto; however,
TxRate settings are
automatically determined
by the DWL-G120
depending on the
distance from the access
point.
D. Channel: Displays the
channel information. By
default, the channel is set
to 6 and selection is
automatically determined
by the Access Point.

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J. TxRate: You can
adjust the transmis-
sion rate to get the
best signal possible
depending on your
usage and environ-
ment.
L. Power Mode: By
default, Power Mode is
set to Continuous
Access Mode. Continu-
ous Access Mode - this
default setting con-
sumes the most power.
Maximum Power Save -
this setting consumes
the least power. Power
Save - this setting
consumes a moderate
amount of power.
K. Preamble: By default, D-Link
AirPlus XtremeG Products are
set to Long Preamble. The
Preamble defines the length of
the CRC block (Cyclic Redun-
dancy Check is a common
technique for detecting data
transmission errors) for com-
munication between the Access
Point and wireless network
adapters. High network traffic
areas should use the Shorter
Preamble type.
G
L
K
J
I
H
H. Wireless Mode: The factory
setting is set to Infrastruc-
ture Mode. Ad-Hoc mode is
used for Peer-to-Peer
networking.
Appendix (cont.)
I. Channel: By default, the
channel is set to 6. Channel
selection is automatically
determined by the DWL-
G120 depending on the
channel setting of the
access point selected for
association. To change the
channel settings, the
Wireless Mode must be set
to Ad-Hoc mode.
G. SSID:The Service
Set Identifier is the
name assigned to
the wireless network.
The factory SSID
setting is set to
default.
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