CompUSA 333626 Manuale operativo
54 Mbps Wireless G
Mini USB Adapter
SKU: 333626
Rev. 051216
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FCC and CE Radiation Norm
FCC
This equipment has been tested and found to comply with limits for Class B digital device pursuant
to Part 15 of Federal Communications Commission (FCC) rules.
CE
This equipment has been tested and found to comply with the limits of the European Council
Directive on the approximation of the law of the member states relating to electromagnetic
compatibility (89/336/EEC) according to EN 55022 Class B.
FCC and CE Compliance Statement
These limits are designed to provide reasonable protection against frequency interference in
residential installation. This equipment generates, uses and can radiate radio frequency energy,
and if not installed or used in accordance with the instructions, may cause harmful interference to
radio communication. However, there is no guarantee that interference will not occur in television
reception, which can be determined by turning the equipment off and on. The user is encouraged
to try and correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and the receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected to.
CAUTION!
The Federal Communications Commission warns the user that changes or modifications to the
unit not expressly approved by the party responsible for compliance could void the user’s authority
to operate the equipment.
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PACKAGE CONTENTS:
-54Mbps Wireless G Mini USB Adapter
-USB Extension Cable
-Driver CD
-Quick Installation Guide
SYSTEM REQUIREMENTS:
-Windows®98SE, ME, 2000, XP
-An Available USB Port
-CD-ROM Drive (for driver installation)
SYSTEM SPECIFICATIONS:
-Complies with Both IEEE 802.11b & IEEE 802.11g
-High Speed Data Transfer Rates Up To 54Mbps
-Supports Peer-To-Peer Communications Among Any Wireless Users, No Access Point
Required
-Supports 64/128bit WEP, WPA and AES Functions
-Compliant with Both USB 2.0 and USB 1.1 Standards
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Driver Installation
Before you start the driver installation, please read the following carefully:
1. Do not install your Mini USB Adapter into your computer before you have installed the
enclosed driver and utility software CD.
2. The following installation was performed under Windows®XP and the screenshots are for
demonstration purposes only. However, the installation procedures are similar for all
Windows®operating systems.
3. If you have previously installed an older version of the driver and/or utility software for your
Mini USB Adapter, please uninstall the older version prior to this installation to avoid any
system conflicts.
For All Windows®Operating Systems
To install the driver and utility software for your Mini USB Adapter, please follow the instructions
below:
1. Turn on your computer.
2. Place the driver CD into the CD-ROM drive of your computer.
3. Click “Start”, then “Run…”, then type “D:\Setup.exe” in the dialog box (NOTE: “D:\”
represents the drive letter assigned to the optical drive you are using. If Dis not the letter
assigned to your optical drive, replace Dwith the appropriate drive letter.), and then click
“OK”.
4. Read the license agreement carefully, click “Yes” to accept the agreement and continue the
installation.
5. In Windows®XP, there is a “Windows Zero Configuration Tool” for you to setup your Mini
USB Adapter. You can choose to configure your Mini USB Adapter through the “Windows
Zero Configuration Tool” or the “Ralink Configuration Tool”. However, it is
recommended to choose the “Ralink Configuration Tool”. Click “Next” to continue.
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6. If you would like your Mini USB Adapter to operate at a high performance choose the
“Optimize for performance” to enable the Tx Burst mode. If you would like your Mini USB
Adapter to run in standard wireless network you can choose “Optimize for Wi-Fi mode”.
After you have made your selection, click “Next” to start the installation.
7. During the installation, your computer may ask you to plug your Mini USB Adapter into your
computer. If this occurs, plug your Mini USB Adapter into an available USB port on your
computer to complete the installation.
NOTE: If your computer did not ask you to plug your Mini USB Adapter in during the installation,
please plug it into an available USB port on your computer after the installation is complete.
8. Click “Finish” to complete the installation.
9. Restart your computer and your new Mini USB Adapter will be ready for use.
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Utility Configuration
The Ralink Wireless Utility is a powerful application that helps you configure your Mini USB
Adapter and monitor the link and network communication statistics.
When your Mini USB Adapter is installed, the Wireless Utility will be displayed automatically. Your
Mini USB Adapter will automatically connect to the wireless network with the best signal strength
and no wireless security setting.
TIP: If you are not able to find your network, please click the “Rescan” button to scan again; or,
access the “Profile” section to add a specific network manually. (To create a profile for your
network, please refer to the Profile section of this manual).
1. The Ralink Wireless Utility icon will appear on the system tray on your desktop while your
Mini USB Adapter is plugged in. To access the utility, double-click on the icon to access the
option menu.
2. In Windows®XP, there is a “Windows Zero Configuration Tool” for you to setup wireless
networks with Windows®configuration. If you want to use this tool (for advanced users),
right-click the icon located in the system tray and select “Use Zero Configuration as
Configuration utility”. (You can switch back to the Ralink Wireless Utility settings using the
same method).
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Site Survey
When you open the Ralink Wireless Utility, the system will scan all the channels to find all the
access points/stations within the accessible range of your Mini USB Adapter and automatically
connect to the wireless device with the highest signal strength. From the “Site Survey”, all the
networks nearby will be listed. You can change the connection to other networks or add one of the
available networks to your profile list.
Parameter Description
Available Networks This list shows all available wireless networks within range of your Mini USB Adapter. It
also displays the information of the networks including the SSID, BSSID, Signal Strength,
Channel, Encryption Method, Authentication and Network Type. If you want to connect to
any network on the list, double-click the item on the list, and your Mini USB Adapter will
automatically connect to the selected network.
Rescan Button Click this button to collect the new information of all the wireless networks nearby.
Connect Button Click this button to connect to the selected network.
Add to Profile Button Click this button to add the selected network to your “Profile” list.
Available Networks
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Profile
The “Profile List” is for you to manage the network(s) you use frequently. You can add, delete,
edit, and activate profile(s) in this section.
Parameter Description
Profile List The profile list display all the profiles and the relative settings of the profiles including
Profile Name, SSID, Channel, etc.
A green check mark sign indicates the activated profile can establish a successful
connection.
A red check mark sign indicates the activated profile can not establish a successful
connection.
Add Click this button to open the “Add Profile” dialog box and add a new profile.
Delete/Edit Button Click these buttons to delete or edit the selected profile.
Activate Button Click “Activate” to connect to the selected profile. When a profile is activated, your Mini
USB Adapter will try to connect to the corresponding network.
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Configuring the Profile
To add a new profile (or edit an existing profile), please follow the instructions below:
Parameter Description
Profile Name Define a recognizable profile name for you to identify different networks.
SSID The SSID (up to 32 printable ASCII characters) is the unique name identified in a WLAN.
This ID prevents unintentional merging of two co-located WLANs.
You may specify a SSID for your Mini USB Adapter and only devices with the same SSID
can interconnect with your Mini USB Adapter. To add an available network to the profile
list, click the down arrow on the right side of the “SSID” input box and select one from the
list, or type the SSID into the field.
PSM (Power Saving
Mode) The power saving function is only available when the network type is “Infrastructure”.
CAM (Constantly Awake Mode) – Your Mini USB Adapter will always be in active mode.
PSM (Power Saving Mode) – Enable your Mini USB Adapter in the power saving mode
when it is idle.
Network Type Infrastructure – This operation mode requires the presence of an 802.11 Access Point.
All communication is done via the Access Point or Router.
Ad-Hoc – Select this mode if you want to connect to another wireless station in the
Wireless LAN network without going through an Access Point or Router.
TX Power If you want to lower the transmit power of your Mini USB Adapter to conserve system
power, you can select the lower percentages from the list. Please note that by lowering the
TX Power, it will weaken the signal strength and the coverage range.
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Parameter Description
Ad Hoc Wireless Mode When your Mini USB Adapter is set toAd Hoc (Peer to Peer Mode), you can designate the
wireless connection mode for theAd Hoc network.
802.11 B only – Your adapter will be compatible with 802.11b wireless stations ONLY. If
there are only 802.11b wireless stations in the network, you can set your Mini USB
Adapter to this mode.
802.11 B/G mix – If you have a mix of 802.11b and 802.11g wireless stations in your
network, it is recommended to set your Mini USB Adapter to this mode. (This mode is the
default setting.)
802.11 G only – Your adapter will be compatible with 802.11g wireless stations ONLY. If
there are only 802.11g wireless stations in the network, you can set your Mini USB
Adapter to this mode.
Preamble The preamble defines the length of the CRC block for communication among wireless
devices. This option is only active in the Ad Hoc mode.
There are two modes including Auto and Long Preamble. If “Auto” mode is selected, your
Mini USB Adapter will auto switch the preamble mode depending on the wireless network
that your Mini USB Adapter is connecting to.
RTS Threshold Minimum packet size required for an RTS (Request To Send). For packets smaller than
this threshold, an RTS is not sent and the packet is transmitted directly to the wireless
network. Select a setting within a range of 0 to 2347 bytes. (It is recommended to keep the
default settings).
Fragment Threshold This value defines the maximum size of packets; any packet size larger than this value will
be fragmented. If you have decreased this value and experience high packet error rates,
you can increase it again, but it will likely decrease overall network performance. Select a
setting within a range of 256 to 2346 bytes. (It is recommended to keep the default
settings).
Channel This setting is only available for Ad Hoc mode. Select the number of the radio channel
used on your network. The channel setting of your Mini USB Adapter is REQUIRED to be
the same as the network you are connecting to.
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