Global Sun Technology GL2422MU-MT IEEE 802.11b 22Mbps WLAN USB Device User Manual Manual
Global Sun Technology Inc IEEE 802.11b 22Mbps WLAN USB Device Manual
Manual
GL2422MU-MT
User Manual
2.4GHz Wireless Mini USB Adapter
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
Contents of Package:
GL2422MU-MT
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
Introduction
The GL2422MU-MT 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 GL2422MU-MT 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 GL2422MU-MT USB Adapter.
Actual through-put may vary.
Features and Benefits
Convenience of Plug & Play installation !
**
* Environmental factors may adversely affect range
Connects at up to 328 feet indoors*
User-friendly configuration and 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
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. 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
GL2422MU-MT 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
GL2422MU-MT to your
computer
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 GL2422MU-MT is interoperable with
existing compatible 2.4GHz wireless technology with data transfer speeds of
up to 22Mbps when used with other devices.
Wireless Basics (continued)
Installation Considerations
The GL2422MU-MT 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:
Keep the antenna of the GL2422MU-MT in an upright position.
Keep the number of walls and ceilings between the GL2422MU-MT 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.
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.
Getting Started
With its default settings, the GL2422MU-MT will connect with other
products, right out of the box.
A wireless broadband Router-
GL2422RT
A laptop computer with a USB wireless network adapter -
GL2422MU-MT
A desktop computer with a USB wireless network adapter -
GL2422MU-MT
A Cable modem -
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 GL2422MU-MT 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 network devices (your existing network may be comprised
of other devices):
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 DWL-120 wireless USB adapter into an available USB
port on your desktop computer. (See the Quick Installation Guide included with
the GL2422MU-MT.)
If you are connecting a laptop computer to your network, you can install the
GL2422MU-MT into an available USB port on your laptop.
Using the Configuration Utility
GL2422MU-MT uses the Configuration Utility as the management
software. The utility provides the user an easy interface to change any settings
related to the wireless adapter. When the computer is started, the
Configuration Utility starts automatically and the system tray icon is loaded
in the toolbar (see illustration below.) Clicking on the utility icon will start the
Configuration Utility. Another way to start the Configuration Utility is to
click on Start>Programs> GL2422MU-MT.
If you are using Windows XP, you can use either the Zero Configuration Utility
or the Configuration Utility. To use the Configuration Utility with
XP, click on the Zero Configuration Utility in the taskbar in the lower corner of
your computer screen and uncheck the box in the properties window
that
enables windows configuration. After you have done this, you can then use the
Configuration Utility with XP.
Link Info
SSID:
The Service Set Identifier is the name assigned to the wireless network. The
factory SSID setting is set to default.
Tx Rate:
The default setting is Auto; Tx Rate settings are automatically determined for
optimal speed up to a maximum speed of 22Mbps.
Status:
Displays the current
connection state of the
GL2422MU-MT.
Channel:
The default setting is 6.
Link Quality:
Displays the wireless signal strength for the GL2422MU-MT wireless connection
to the access point.
Data Rate:
Displays the statistics of the data that is transmitted and received.
A new icon will appear in your Icon tray. Double-
click on the icon shown at right. The screen below
will be displayed with the following default settings:
Auto
Configuration
Using the Configuration Utility
Wireless Mode:
Infrastructure is the factory default setting. Ad-Hoc mode is used for peer-
to-peer networking. See the Getting Started section in this manual for ex-
amples of these network types.
SSID:
The Service Set Identifier is the name assigned to the wireless network. The
factory SSID setting is set to default. Make changes here to match the SSID
on the existing Wireless Router or Access Point.
Tx Rate:
You can adjust the transmission rate to get the best signal possible depend-
ing on your usage and your environment. The Tx Rate will be determined
automatically by signal strength. Default is set to Auto.
Power Mode:
Select from three modes:
Continuous Access Mode - this default setting consumes the most power
Maximum Power Save - this setting consumes the least power
Power Save - this setting consumes a moderate amount of power
Click Apply to save changes.
Preamble:
Select Long or Short 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
the roaming wireless Network adapters. Long Preamble is the default setting.
High network traffic areas should use the Short Preamble.
Channel:
The default channel setting is channel 6. In Infrastructure mode, the
GL2422MU-MT will automatically select the channel to match the channel setting
for the selected Access Point. In Ad Hoc mode, the channel must be manually
set to the same channel for each wireless adapter.
Auto
Using the Configuration Utility
Encryption
Data Encryption:
Enable encryption by clicking in the box. Data encryption is de-selected as the
default setting.
Default Key:
Enter a key in either ASCII (e.g., a word) or hexadecimal format. Select one of
the 4 keys that you have created to be the default key.
Authorization Mode:
Click Apply if you have made any changes
Open Authentication - communicates the key across the network
Shared Authentication - allows communication only with other devices
with identical WEP settings
Auto - will automatically adjust to the Authentication mode of the wireless
Access Point or Router
Key Format:
ASCII (e.g., a word) or Hexadecimal format
Key Length:
select the key length, either 64, 128 or 256 bits
Hexadecimal digits consist of the numbers 0-9 and the letters A-F
ASCII (American Standard Code for Information Interchange) is a code for
representing English letters as numbers from 0-127
Using the Configuration Utility
Site Survey
Available Networks:
The top section of the window displays the Available Networks. Scroll up
and down the list and highlight the network to which you wish to connect.
Click on the Connect button.
Profiles:
In the lower half of the screen, you can manage the profiles that you have
created for the wireless network at home, at the office and in public places.
Scroll up and down and highlight the profile that you wish to configure. You
can ADD or REMOVE a profile, or configure the Properties of the profile in
order to connect with an available network.
Properties:
Click on Properties and the screen on the next page will appear.
Using the Configuration Utility (continued)
In this window you can configure all the properties of a profile in order to
connect with a network of your choice.
Click OK to save the changes.
Properties
Current Setting
Current Setting/Default Setting
default
Using the Configuration Utility
About
The About tab displays the utility and the firmware versions.
Using the Network Setup Wizard in Windows XP
In this section you will learn how to establish a network at home or work,
using Microsoft Windows XP.
Note: Please refer to websites such as http://www.homenethelp.com
and http://www.microsoft.com/windows2000 for information about
networking computers using Windows 2000, ME or 98SE.
Go to Start>Control Panel>Network Connections
Select Set up a home or small office network
Networking Basics
When this screen appears, Click Next.
Please follow all the instructions in this window:
Networking Basics
Click Next
In the following window, select the best description of your computer. If your
computer connects to the internet through a gateway/router, select the
second option as shown.
Click Next
Enter a Computer description and a Computer name (optional.)
Networking Basics
Click Next
Enter a Workgroup name. All computers on your network should have the
same Workgroup name.
Click Next
Please wait while the Network Setup Wizard applies the changes.
Networking Basics
When the changes are complete, click Next.
Please wait while the Network Setup Wizard configures the computer.
This may take a few minutes.
Networking Basics
In the window below, select the option that fits your needs. In this example, Create
a Network Setup Disk has been selected. You will run this disk on each of the
computers on your network. Click Next.
Insert a disk into the Floppy Disk Drive, in this case drive A.
Networking Basics
Please read the information under Here.s how in the screen below. After you com-
plete the Network Setup Wizard you will use the Network Setup Disk to run the
Network Setup Wizard once on each of the computers on your network. To continue
click Next.
Networking Basics
Please read the information on this screen, then click Finish to complete the
Network Setup Wizard.
The new settings will take effect when you restart the computer. Click Yes to
restart the computer.
You have completed configuring this computer. Next, you will need to run the
Network Setup Disk on all the other computers on your network. After run-
ning the Network Setup Disk on all your computers, your new wireless net-
work will be ready to use.
Networking Basics
Naming your Computer
To name your computer, please follow these directions:In Windows XP:
Click Start (in the lower left corner of the screen)
Right-click on My Computer
Select Properties and click
Select the Computer
Name Tab in the System
Properties window.
You may enter a Com-
puter Description if you
wish; this field is optional.
To rename the computer
and join a domain, Click
Change.
Networking Basics
Naming your Computer
In this window, enter the
Computer name
Select Workgroup and enter
the name of the Workgroup
All computers on your network
must have the same
Workgroup name.
Click OK
Checking the IP Address in Windows XP
The wireless adapter-equipped computers in your network must be in the same IP
Address range (see Getting Started in this manual for a definition of IP Address Range.)
To check on the IP Address of the adapter, please do the following:
Right-click on the
Local Area
Connection icon
in the task bar
Click on Status
Networking Basics
Checking the IP Address in Windows XP
This window will appear.
Click theSupport tab
Click Close
Assigning a Static IP Address in Windows XP/2000
Note: Residential Gateways/Broadband Routers will automatically assign IP Ad-
dresses to the computers on the network, using DHCP (Dynamic Host Configura-
tion Protocol) technology. If you are using a DHCP-capable Gateway/Router you
will not need to assign Static IP Addresses.
If you are not using a DHCP capable Gateway/Router, or you need to assign a Static IP
Address, please follow these instructions:
Go to Start
Double-click on
Control Panel
Networking Basics
Assigning a Static IP Address in Windows XP/2000
Double-click on
Network
Connections
Double-click on
Properties
Right-click on Local Area
Connections
Networking Basics
Assigning a Static IP Address
in Windows XP/2000
Input your IP address and
subnet mask. (The IP
Addresses on your network
must be within the same
range. For example, if one
computer has an IP Address
of 192.168.0.2, the other
computers should have IP
Addresses that are
sequential, like 192.168.0.3
and 192.168.0.4. The
subnet mask must be the
same for all the computers
on the network.)
Input your DNS server
addresses. (Note: If you
are entering a DNS server,
you must enter the IP
Address of the Default
Gateway.)
!
The DNS server information will be supplied
by your ISP (Internet Service Provider.)
! Click OK
Click on Internet Protocol
(TCP/IP)
Click Properties
!
!
Networking Basics
Checking the Wireless Connection byPinging in Windows XP and 2000*
Checking the Wireless Connection byPinging in Windows Me and 98*
Go to Start > Run >type cmd. A window similar to this one will appear. Type ping
xxx.xxx.xxx.xxx, where xxx is the IP Address of the Wireless Router or Access Point. A
good wireless connection will show four replies from the Wireless Router or Acess Point, as shown.
Go to Start > Run > type command. A window similar to this will appear. Type ping xxx.xxx.xxx.xxx
where xxx is the IP Address of the Wireless Router or Access Point. A good wireless connection
will show four replies from the wireless router or access point, as shown.
* The IP Addresses in these illustrations are examples only. The actual IP Addresses
that you ping may be different than those displayed here.
1. Check that the drivers for the GL2422MU-MT are installed properly.
Click Device Manager. Select the Hardware Tab
Troubleshooting
Go to Start >
My Computer >
Properties
!
This chapter provides solutions to problems that can occur during the installation and
operation of the GL2422MU-MT. Read the following descriptions if you are having problems.
(The examples below are illustrated in Windows XP. If you have another operating
system, these solutions will still apply although the appearance on your computer screen
may differ.)
Troubleshooting
Double-click
on Network
Adapters
Right-click on
GL2422MU-MT
Wireless USB Adapter
Select Properties
to check that the
drivers are
installed properly
Look under Device
Status to check that the
device is working
properly
Click OK
Troubleshooting
2. What variables may cause my wireless products to lose reception?
products let you access your network from virtually anywhere you want.
However, the positioning of the products within your environment will affect the
wireless range. Please refer to Installation Considerations in the Wireless
Basics section of this manual for further information about the most advanta-
geous placement of your wireless products.
3. Why does my wireless connection keep dropping?
4. Why can.t I get a wireless connection?
If you have enabled Encryption on the GL2422MU-MT, you must also enable en-
cryption on all wireless devices in the network in order to establish a wireless
connection.
Antenna Orientation- Try different antenna orientations for the
GL2422MU-MT. Try to keep the antenna at least 6 inches away from the
wall or other objects.
If you are using 2.4GHz cordless phones, X-10 equipment or other home
security systems, ceiling fans, and lights, your wireless connection will
degrade dramatically or drop altogether. Try changing the Channel on
your Router, Access Point and Wireless adapter to a different Channel
to avoid interference.
Keep your product away (at least 3-6 feet) from electrical devices that
generate RF noise, like microwaves, Monitors, electric motors, etc.
The Encryption settings are: 64, 128 or 256-bit. Make sure that the en-
cryption bit level is the same on the Router and the GL2422MU-MT.
Make sure that the SSID on the Router (if you have one in your network)
and the GL2422MU-MT are exactly the same. If they are not, wireless con-
nection will not be established. The default SSID is default.
Technical Specifications
Temperature
Operating: 0ºC to 55ºC (32ºF to 131ºF)
Storing: -20ºC to 75ºC (-4ºF to 167ºF)
IEEE 802.11b !
Standard
Power
Link Status
Diagnostic LED
95%, non-condensing
Humidity:
Antenna Type:
Single External, Dual Diversity
Modulation Technique:
DSSS
Physical Dimensions:
1.4cm x 7.8cm x 5.2cm
Data Rates:
1,2,5.5,11,22 Mbps (with Automatic Fallback)
Interface:
USB 1.1
Available Channels:
Eleven channels for North America
Media Access Protocol:
CSMA/CA with ACK
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this
equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.