D-Link AirPlus DWL-120+ Manuel utilisateur
Manual
Building Networks for People
AirPlus DWL-120+
D-Link
2.4GHz Wireless USB Adapter
2
Contents
Package Contents ................................................................................3
Introduction............................................................................................4
Wireless Basics ....................................................................................6
Getting Started ......................................................................................9
Using the Configuration Utility ..............................................................12
Networking Basics ..............................................................................18
Troubleshooting ...................................................................................31
Technical Specifications ......................................................................34
Contacting Technical Support ..............................................................35
Warranty and Registration ...................................................................36
3
Contents of Package:
D-Link AirPlus DWL-120+
2.4 GHz Wireless USB Adapter
Manual on CD-ROM
Quick Installation Guide
Package Contents
If any of the above items are missing, please contact your reseller.
System Requirements:
Windows XP/2000/Me/98SE
A computer or laptop with an available USB port
At least 32 MB of memory and a 300 MHz processor
Properly installed and working USB Controller
USB Cable
4
Introduction
The D-Link AirPlus DWL-120+ 2.4GHz Wireless USB Adapter is a convenient
Plug & Play USB 1.1 solution that brings wireless networking to your laptop or
desktop PC. It provides up to 256-bit level of WEP security to your wireless
data transfers.
After completing the steps outlined in the Quick Installation Guide (included in
your package) you will have the ability to share information and resources,
such as files, printers, and Internet connection and enjoy the freedom that
wireless networking delivers.
The DWL-120+ comes with software drivers for the most popular Microsoft
Windows operating systems and can be integrated into a larger network, running
Windows XP, Windows 2000, Windows Me, or Windows 98SE in either Ad
Hoc mode (without an Access Point or Router) or Infrastructure mode (with an
Access Point or Router). The IEEE 802.11b Ethernet standard allows you to
connect computers and 802.11b compatible devices at speeds up to 22Mbps*,
dependent upon the distance between wireless adapters, the configuration of
your working environment, or the capabilities or limitations of your computer
systems.
* This is the theoretical maximum of the chipset used in the DWL-120+ USB Adapter.
Actual through-put may vary.
5
Features and Benefits
Convenience of Plug & Play installation
**
* Environmental factors may adversely affect range
Three year warranty (USA only)
Connects at up to 328 feet indoors*
User-friendly configuration and diagnostic utilities
Supports infrastructure networks via an Access Point or Router and
Peer-to-Peer communication in Ad-Hoc mode
Stronger Network Security with 256-bit WEP encryption
USB 1.1 standard
Fully 802.11b compatible
6
D-Link wireless products are based on industry standards to provide easy-to-
use 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.
Wireless Basics
Features
Link/Activity LED
Power - Indicates that the
DWL-120+ is properly
installed in the computer.
Link - Blinks when data is
being transmitted through
the wireless connection.
Antenna
Used to wirelessly
connect to 802.11b
networks
Mini-USB port
Used to connect the
DWL-120+ to your
computer
7
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 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 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.
Scalability – WLANs can be configured in a variety of topologies 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.
Inexpensive Solution - Wireless network devices are as competitively
priced as conventional Ethernet network devices.
Standards-Based Technology
Based on the IEEE 802.11b standard, the DWL-120+ is interoperable with
existing compatible 2.4GHz wireless technology with data transfer speeds of
up to 22Mbps when used with other D-Link AirPlus devices.
8
Wireless Basics (continued)
Installation Considerations
The D-Link AirPlus DWL-120+ lets you access your network, using a wireless
connection, from virtually anywhere within its operating range. 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 antenna of the DWL-120+ in an upright position.
Keep the number of walls and ceilings between the DWL-120+ and other
network devices to a minimum - each wall or ceiling can reduce your D-
Link wireless product’s range from 3-90 feet (1-30 meters.) Position your
devices so that the number of walls or ceilings is minimized.
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! Position
devices so that the signal will travel straight through a wall or ceiling (instead
of at an angle) for better reception.
Keep your product away (at least 3-6 feet or 1-2 meters) from electrical
devices or appliances that generate extreme RF noise.
3.
4.
5.
2.
Building Materials can impede the wireless signal - 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.
9
Getting Started
With its default settings, the DWL-120+ will connect with other
D-Link AirPlus products, right out of the box.
A wireless broadband Router-
D-Link AirPlus DI-614+
A laptop computer with a USB wireless network adapter -
D-Link AirPlus DWL-120+
A desktop computer with a USB wireless network adapter -
D-Link AirPlus DWL-120+
A Cable modem -
D-Link DCM-201
There are basically two modes of networking:
Infrastructure – using an Access Point or Router, such as the DI-614+.
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-120+ wireless USB 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. 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):
10
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.)
Install the D-Link AirPlus DWL-120 wireless USB adapter into an available USB
port on your desktop computer. (See the Quick Installation Guide included with
the DWL-120+.)
If you are connecting a laptop computer to your network, you can install the
DWL-120+ into an available USB port on your laptop. (See the Quick Installa-
tion Guide included with the DWL-120+.)
Getting Started
For a typical wireless setup at home (as shown above), please do the
following:
55
55
5
Setting up a Wireless Infrastructure Network
44
44
4
11
11
1
22
22
2
33
33
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4
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