D-Link Air DWL-120 Specifications
This product works with the following operating
system software: Windows XP, Windows
2000, Windows Me, Windows 98se
DWL-120+
2.4GHz USB
Wireless Adapter
Before You Begin
You must have at least the following:
• You will need a computer with an available USB port to connect the
DWL-120+ Wireless USB adapter.
• At least a 300 MHz processor and 32 MB of memory
• An 802.11b Access Point (for Infrastructure Mode) or another 802.11b
wireless adapter (for Ad-Hoc; Peer-to-Peer networking mode.)
• Properly Installed and Working USB Controller.
Check Your Package Contents
These are the items included with your DWL-120+ purchase:
DWL-120+ Wireless USB Adapter
CD-ROM (containing Drivers, Manual and Warranty)
Mini-USB Cable
If any of the above items are missing, please contact your reseller.
©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-120+ 04082003
Insert the D-Link CD-ROM Into Your
Computer
Do NOT install
Turn on the computer and
Insert the D- Link Air DWL-120+ 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
The Install Screen will appear.
Click Install Drivers
If the CD Autorun function does
not automatically Go to Start >
Run on your computer, then
type “D:\Setup.exe.” If it does
start, proceed to the next
screen.
Type “D:\Setup.exe.”
The letter “D”
represents the
letter of the CD-ROM
drive. Your CD-ROM
drive may be a different
drive letter.
Click OK
Click Next
the DWL-120+
USB Adapter into your
computer before
installing the driver
software on the D-Link
CD!
Click Next
Click No, I will restart
my computer later
Click Finish
Shut down Your Computer
Antenna
Used to wirelessly
connect to 802.11b
networks.
Link/Power LED
Link - Blinks when data is being
transmitted through the wireless
connection.
Power - Indicates that the DWL120+ is properly installed in the
computer.
Mini-USB Port
Used to connect the
DWL-120+ to your
computer.
Installing the DWL-120+ Wireless USB
Adapter to Your Computer
A. Make sure to turn off your computer.
B. Firmly insert one end of the
USB cable (larger plug) into
your computer’s USB Port.
C. Firmly insert the other end of
the USB cable (smaller plug)
into the DWL-120+.
Restart Your Computer
When you restart your computer
this Found New Hardware
Wizard (Windows XP) screen
will appear:
Select Install the software
automatically (Recommended)
Click Next
Windows XP will automatically
load the driver files.
Click Finish
For Windows XP/2000, a
screen similar to this Digital
Signature Not Found screen
may appear during the installation.
Click Yes to continue
the installation
For Windows Me and 98SE, this
screen may appear.
Click Yes to finalize the
installation
Your Installation is Complete!
After you’ve continued in Windows XP (or after the computer
restarts in the other Windows operating systems), the D-Link Air
DWL-120+ Configuration Utility will automatically 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-120+, are connected to a
wireless network and are ready to communicate!
If the utility icon does not appear,
double-click the shortcut icon that
has appeared on your desktop.
Double-click the utility icon to use
the configuration utility.
For Windows XP, if you wish to use the AirXpert Utility, please do the
following steps.
Click the XP Networking icon
to use the Zero Configuration
Wireless Settings.
Click Advanced
Your Installation is Complete!(cont.)
Uncheck “Use Windows to
configure my wireless network settings.”
Click OK
Appendix
Using the Configuration Utility
A. Status: Displays the
MAC Address of the
Access Point that is
associated with the
DWL-120+.
B. SSID: The Service Set
Identifier is the name
assigned to the wireless
network. The factory SSID
setting is set to default
A
B
C
D
E
F
C. TxRate: The default
setting is 11Mbps;
however, TxRate settings
are automatically
determined by the DWL120+ 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.
F. Data Rate: Graphically displays the
statistics of data transmitted and received.
E. Link Quality /
Signal Strength:
Displays the wireless
signal strength for the
DWL-120+ wireless
connection to the
access point.
Appendix (cont.)
G. SSID: The Service
Set Identifier is the
name assigned to
the wireless network.
The factory SSID
setting is set to
default.
H. Wireless Mode: The factory
setting is set to Infrastructure Mode. Ad-Hoc mode is
used for peer-to-peer networking.
I. Channel: By Default, the
channel is set to 6. Channel
selection is automatically
determined by the DWL120+ 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.
G
H
I
J
K
L
J. TxRate: You can
adjust the transmission rate to get the
best signal possible
depending on your
usage and environment.
K. Preamble: By default, D-Link
AirPlus Products are set to Long
Preamble. The Preamble
defines the length of the CRC
block (Cyclic Redundancy
Check is a common technique
for detecting data transmission
errors) for communication
between the Access Point and
wireless network adapters.
High network traffic areas shout
use the Shorter Preamble type.
L. Power Mode: By
default, Power Mode is
set to Continuous
Access Mode. Continuous Access Mode - this
default setting consumes the most power.
Maximum Power Save this setting consumes
the lease power. Power
Save - this setting
consumes a moderate
amount of power.
IP Address Configuration
To connect to a network, make sure
the proper network settings are
configured for DWL-120+.
For Microsoft Windows XP:
Go to Start > right click on
My Network Places >
select Properties > Double-click on
the Network Connection associated
with the DWL-120+.
Click Internet Protocol (TCP/IP)
Click Properties
Dynamic IP address setup
Used when a DHCP server is available on
the local network. (i.e. Router)
Select Obtain an IP address
automatically (if the Wireless
Router or Access Point has DHCP
server enabled)
Select Obtain DNS server
address automatically
Click OK
Static IP address setup
Used when a DHCP server is not available
on the local network.
Select Use the following IP address
IP address: 192.168.0.51
Subnet mask: 255.255.255.0
Input a static IP address in the same
range as the Wireless Router or
Access Point.
Click OK
For Windows 2000 users:
Go to Start > Settings > Network and
Dial-up Connections > Double-click on
the Local Area Connection associated
with the DWL-120+ > select Properties
Click Internet Protocol (TCP/IP)
Click Properties
Dynamic IP address setup
Used when a DHCP server is available on
the local network. (i.e. Router)
Select Obtain an IP address
automatically (if the Wireless Router
or Access Point has DHCP server
enabled)
Select Obtain DNS server
address automatically
Click OK
Static IP address setup
Used when a DHCP server is not available
on the local network.
Select Use the following IP
address
IP address: 192.168.0.52
Subnet mask: 255.255.255.0
Default Gateway: 192.168.0.1
DNS Address: 192.168.0.1
Input a static IP address in the same
range as the Wireless Router or
Access Point.
Click OK
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