Manual Topcom skyr cer usb 4001g (page 21 of 30) (English)

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CONTENTS

1.1 Features......................................................................................................................... 2

1.2 Specifications................................................................................................................2

1.3 Package Contents..........................................................................................................3

3.1 Site Survey.................................................................................................................... 8

3.2 Profile............................................................................................................................ 9

3.2.1 Configure the Profile.....................................................................................10

3.2.1.1 Configuration ........................................................................................................ 10

3.2.1.2 Authentication and Security.................................................................................. 12

3.2.1.3 802.1x Setting-Certification.................................................................................. 16

3.2.1.4 802.1x Setting-CA Server ..................................................................................... 17

3.3 Link Status ..................................................................................................................18

3.4 Statistics......................................................................................................................20

3.5 Advance ......................................................................................................................20

3.6 About........................................................................................................................... 23

3.7 Turbo Mode................................................................................................................. 23

1 Introduction

Thank you for purchasing the 802.11g Wireless LAN USB Adapter. This USB adapter is designed to

comply with IEEE 802.11g Wireless LAN standard and easy to carry with the Mini size. It is suitable for

any Laptop or Desktop computers.

This adaptor supports higher data throughput than the IEEE 802.11g standard (up to 54Mbps). It

supports specific ways to increase the data transfer rate at a time; compress the data and decrease the

waiting time to send the next data to the Routers or APs. This feature is called Turbo Mode. When the

adaptor is connecting to the Routers or APs with the proprietary feature, the wireless network will be

more effective.

For WLAN security issues, this adaptor supports 64/128-bit WEP data encryption that protects your

wireless network from eavesdropping. It also supports WPA (Wi-Fi Protected Access) feature that

combines IEEE 802.1x and TKIP (Temporal Key Integrity Protocol) technologies. Client users are

required to authorize before accessing to APs or AP Routers, and the data transmitted in the network is

encrypted/decrypted by a dynamically changed secret key. Furthermore, this adaptor supports WPA2

function, WPA2 provides a stronger encryption mechanism through AES (Advanced Encryption

Standard), which is a requirement for some corporate and government users.

This adapter is cost-effective, together with the versatile features; it is the best solution for you to build

your wireless network.

1.1 Features

• Complies with the IEEE 802.11b and IEEE 802.11g 2.4GHz (DSSS) standards.

• High data transfer rate – up to 54Mbps.

• Supports Turbo Mode to enhance the data transfer speed within the specific wireless

network.

• Supports 64/128-bit WEP, WPA (TKIP with IEEE 802.1x), WPA2 (AES with IEEE

802.1x) functions for high level of security.

• Supports the most popular operating system: Windows 98SE/Me/2000/XP/2003 Server.

• Supports USB 2.0/1.1/1.0 interface.

• Portable and mini-size design.

1.2 Specifications

• Standards: IEEE 802.11b/g

• Bus Type: USB 2.0 Type A

• Frequency Band: 2.4000 ~ 2.4835GHz (Industrial Scientific Medical Band)

• Modulation: OFDM with BPSK, QPSK, 16QAM, 64QAM (11g)

BPSK, QPSK, CCK (11b)

• Data Rate: 54/48/36/24/18/12/11/9/6/5.5/2/1Mbps auto fallback

• Securities: 64/128-bit WEP Data Encryption, WPA (TKIP with IEEE 802.1x), WPA2

(AES with IEEE 802.1x)

Note: WPA2 is only enabled in Windows 2000/XP/2003 Server.

• Antenna: Internal Antenna

• Drivers: Windows 2000/XP/2003 Server

• LEDs: Link/Activity

• Transmit Power: 17dBm ± 2dBm

• Receive Sensitivity: -70dBm@54Mbps, -83.5dBm@11Mbps

• Dimension: 9(H) x 27(W) x 87(D) mm

• Temperature: 32~122°F (0 ~ 50°C)

• Humidity: 10-95% (NonCondensing)

• Certification: FCC, CE

1.3 Package Contents

Before you begin the installation, please check the items of your package. The package should include

the following items:

• One USB Adaptor

• One CD (Driver/Utility/User’s Manual)

2 Installation Procedure

Before you proceed with the installation, please notice following descriptions.

Note1: Please do not install the adaptor into your computer before installing the software

program from the CD.

Note2: The following installation was operated under Windows XP. (Procedures are similar for

Windows 2000/2003 Server.)

Note3: If you have installed the Turbo Wireless LAN USB Adaptor driver & utility before, please

uninstall the old version first.

A. Insert the Installation CD to your CD-ROM Drive. Choose “Install Software”

B. Click “Yes” to process the installation if you accept the license agreement.

C. If you need the adaptor to operate with better performance, please choose the “Optimize for

performance” to enable the Tx Burst mode. Or you can choose “Optimize for Wi-Fi mode” to let the

adaptor run in standard wireless network.

D. The system starts to install the software of the adaptor. Please follow the instructions of the

program to plug in the adaptor into the USB port of your computer. And the system will

automatically detect the adaptor

E. Please click “Finish” to complete the installation.

3 Configuration Utility

The Topcom Configuration Utility is a powerful application that helps you configure the USB adaptor

and monitor the link status and the statistics during the communication process.

When the adaptor is installed, the configuration utility will be displayed automatically. This adaptor will

auto connect to wireless device which has better signal strength and no wireless security setting.

The Topcom Configuration Utility appears as an icon on the system tray of Windows while the adaptor

is running. You can open the utility by double-click on the icon.

In Windows XP, there is a “Windows Zero Configuration Tool” for you to setup wireless clients. If you

want to switch to use Topcom configuration utility, please follow one of the ways as below.

Right click the icon in the system tray and select “Use Topcom Wireless LAN Configuration utility”.

3.1 Site Survey

When you open the Topcom Configuration Utility, the system will scan all the channels to find all the

access points/stations within the accessible range of your adaptor 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 another networks or add one of the networks to your own

profile list.

Parameter Description

Available Networks This list shows all available wireless networks within range of your

adaptor. It also displays the information of the networks including

the SSID, BSSID, Signal Strength, Channel, Encryption,

Authentication and Network Type. If you want to connect to any

networks on the list, double-click the item on the list, and the

adaptor will automatically connect to the selected network.

Rescan Button Click “Rescan” button to collect the new information of all the

wireless networks nearby.

Connect Button

Click “Connect” to connect to the selected network.

Add to Profile Button

Add the selected network to Profiles list.

3.2 Profile

The “Profiles List” is for you to manage the networks you connect to frequently. You are able to

Add/Delete/Edit/Activate a profile.

Parameter Description

Profiles List The profiles list display all the profiles and the relative settings of

the profiles including Profile Name, SSID, Channel, etc.

This sign indicates the activated profile is been connecting.

This sign indicates the activated profile is not been

connecting.

Add/Delete/Edit Button

Click these buttons to add/delete/edit the selected profiles.

Activate Button Click “Activate” to connect to the selected profile. When a profile is

activated, the adaptor will be initially connected to the profile.

3.2.1 Configure the Profile

3.2.1.1 Configuration

Parameter Description

Profile Name Define a recognizable profile name for you to identify the different

networks.

SSID The SSID (up to 32 printable ASCII characters) is the unique

name identified in a WLAN. The ID prevents the unintentional

merging of two co-located WLANs.

You may specify a SSID for the adaptor and then only the device

with the same SSID can interconnect to the adaptor. If you want to

add the network nearby to the profile list, pull down the menu, all

the networks will be listed for you to add one of them to the profile

list.

Parameter Description

PSM (Power Saving Mode) The power saving function is only available when the network type

is in Infrastructure.

CAM (Constantly Awake Mode) – The adaptor will always set in

active mode.

PSM (Power Saving Mode) – Enable the adaptor 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 stations in the Wireless LAN network without through an

Access Point or Router.

TX Power If you want to lower the transmit power of the adaptor for saving the

power of the system, you can select the lower percentages from the

list. The lower power will cause the lower signal strength and the

coverage range.

Ad Hoc Wireless Mode When the adaptor is set in Ad Hoc (Peer to Peer Mode), you can

designate the wireless connection mode for the Ad Hoc network.

802.11 B only – This adaptor can be compatible with both 802.11g

and 802.11b wireless stations. If there are only 802.11b wireless

stations in the network, you can set the adaptor 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 the

adaptor to this mode. This mode is also the default setting.

802.11 G only – This adaptor can be compatible with both 802.11g

and 802.11b wireless stations. If there are only 802.11g wireless

stations in the network, you can set the adaptor 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 network.

There are two modes including Auto and Long Preamble. If

“Auto“ mode is selected, the adaptor will auto switch the preamble

mode depending on the wireless devices the adaptor is connecting

to.

Parameter Description

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. Minor change is

recommended.

Fragment Threshold The value defines the maximum size of packets; any packet size

larger than the 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.

Minor change is recommended.

Channel This setting is only available for Ad Hoc mode. Select the number

of the radio channel used for the networking. The channel setting

should be the same with the network you are connecting to.

3.2.1.2 Authentication and Security

Parameter Description

Authentication Type This setting has to be consistent with the wireless networks that

the adaptor intends to connect.

Open – No authentication is needed among the wireless network.

Shared – Only wireless devices using a shared key (WEP Key

identified) are allowed to connecting each other.

Parameter Description

Authentication Type LEAP – LEAP is a pre-EAP, Cisco-proprietary protocol, with many

of the features of EAP protocols. Cisco controls the ability of other

vendors to implement this protocol, so it should be selected for

use only when limited vendor choice for client, access-point, and

server products is not a concern. When you have set up LEAP

authentication, you have to enter the user name and password of

your computer.

WPA – WPA provides a scheme of mutual authentication using

either IEEE 802.1x/Extensible Authentication Protocol (EAP)

authentication or pre-shared key (PSK) technology. It provides a

high level of assurance to enterprises, small businesses and

home users that data will remain protected and that only

authorized users may access their networks. For enterprises that

have already deployed IEEE 802.1x authentication, WPA offers

the advantage of leveraging existing authentication databases

and infrastructure.

WPA-PSK – It is a special mode designed for home and small

business users who do not have access to network authentication

servers. In this mode, known as Pre-Shared Key, the user

manually enters the starting password in their access point or

gateway, as well as in each wireless stations in the network.

WPA-PSK takes over automatically from that point, keeping

unauthorized users that don't have the matching password from

joining the network, while encrypting the data traveling between

authorized devices.

WPA2 – Like WPA, WPA2 supports IEEE 802.1x/EAP

authentication or PSK technology. It also includes a new

advanced encryption mechanism using the Advanced Encryption

Standard (AES). AES is required to the corporate user or

government users. The difference between WPA and WPA2 is that

WPA2 provides data encryption via the AES. In contrast, WPA

uses Temporal Key Integrity Protocol (TKIP).

WPA2-PSK – WPA2-PSK is also for home and small business.

The difference between WPA-PSK and WPA2-PSK is that

WPA2-PSK provides data encryption via the AES. In contrast,

WPA-PSK uses Temporal Key Integrity Protocol (TKIP).

802.1x Setting When you have set the Authentication Type to Open, Shared,

WPA or WPA2, you can also enable IEEE 802.1x setting to use

the authentication server or certification server to authenticate

client users.

Parameter Description

Encryption Mode None – Disable the encryption mode.

WEP – Enable the WEP Data Encryption. When the item is

selected, you have to continue setting the WEP Encryption keys.

TKIP – TKIP (Temporal Key Integrity Protocol) changes the

temporal key every 10,000 packets (a packet is a kind of message

transmitted over a network.) This ensures much greater security

than the standard WEP security.

AES – AES has been developed to ensure the highest degree of

security and authenticity for digital information and it is the most

advanced solution defined by IEEE 802.11i for the security in the

wireless network.

Note: All devices in the network should use the same encryption

method to ensure the communication.

WPA Pre-Shared Key The WPA-PSK key can be from 8 to 64 characters and can be

letters or numbers. This same key must be used on all of the

wireless stations in the network.

WEP Key

(Key1 ~ Key4)

The WEP keys are used to encrypt data transmitted in the

wireless network. There are two types of key length: 64-bit and

128-bit. Select the default encryption key from Key 1 to Key 4 by

selected the radio button.

Fill the text box by following the rules below.

64-bit – Input 10-digit Hex values (in the “A-F”, “a-f” and “0-9”

range) or 5-digit ASCII characters (including “a-z” and “0-9”) as

the encryption keys. For example: “0123456aef“ or “test1”.

128-bit – Input 26-digit Hex values (in the “A-F”, “a-f” and “0-9”

range) or 13-digit ASCII characters (including “a-z” and “0-9”) as

the encryption keys. For example:

“01234567890123456789abcdef“ or “administrator”.

Parameter Description

Allow Intermediate Certificates A server designates an issuer as a trusted root authority by

placing the issuer's self-signed certificate, which contains the

issuer's public key, into the trusted root certification authority

certificate store of the host computer. Intermediate or subordinate

certification authorities are trusted only if they have a valid

certification path from a trusted root certification authority.

Server Name Enter the authentication server name.

Server name must match exactly When selected, the server name must match exactly the server

name found on the certificate.

Domain name must end in

specified name

When selected, the server name field identifies a domain. The

certificate must use a server name belonging to this domain or to

one of its sub-domains (e.g. zeelans.com, where the server is

blueberry.zeelans.com) but it may be any name used in the

certificate name field.

3.3 Link Status

From the “Link Status” option, you can view all the information of the network you are connecting to.

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