TRENDnet TEW-623PI User manual

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Copyright
This publication, including all photographs, illustrations and software, is protected under
international copyright laws, with all rights reserved. Neither this manual, nor any of the
material contained herein, may be reproduced without written consent of the author.
Copyright 2006
Version 1.0 (June, 2006)
Disclaimer
The information in this document is subject to change without notice. The manufacturer
makes no representations or warranties with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or fitness for any particular purpose. The
manufacturer reserves the right to revise this publication and to make changes from time to
time in the content hereof without obligation of the manufacturer to notify any person of such
revision or changes.
Trademark recognition
All product names used in this manual are the properties of their respective owners and
are acknowledged.

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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 device complies with FCC RF Exposure limits set forth for an uncontrolled environment,
under 47 CFR 2.1093 paragraph (d)(2).
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
This device was tested for typical by stander conditions that may occur during use. To comply
with FCC RF exposure requirements a minimum separation distance of 1.5cm must be
maintained between the user’s body and the device, including the antenna.
TRENDNet declares that TEW-623PI, (FCC ID: S9ZTEW623PI) is limited in CH1~CH11 for
2.4 GHz by specified firmware controlled in U.S.A.

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CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause radio interference, in
which case the user may be required to take adequate measures.
This transmitter must not be co-located or operation in conjunction with any other antenna or
transmitter.

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Table of Contents
Federal Communications Commission (FCC) Interference statement 3
CEMarkWarning 4
Chapter1–WirelessLANNetworking
Transmission Rate 6
TypeofWirelessNetworks 6
Infrastructure (BSS) Network 7
WirelessLANSecurity 9
DataEncryptionwithWEP 9
Chapter 2 - Getting Started
AboutYourCard 10
PackageContent 10
SystemRequirement 10
LEDDefinition 10
Wireless Utility and Card Hardware Installation 11
Using the Utility to Configure Your Network 15
Link Information 15
SiteSurvey 17
Profile 18
Chapter 3 – Maintenance
Uninstalling the Driver 22
Uninstall the Client Utility 22
UpgradingtheWirelessUtility 22
Glossary 23

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Chapter 1- Wireless LAN Networking
This section provides background information on wireless LAN networking technology.
THE INFORMATION IN THIS SECTION IS FOR YOUR REFERENCE. CHANGING
NETWORK SETTINGSAND PARTICULARLY SECURITY SETTTINGS SHOULD
ONLY BE DONE BYAN AUTHORIZED ADMINISTRATOR.
Transmission Rate (Transfer Rate)
The card provides various transmission (data) rate options for you to select. Options include
Fully Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 11 Mbps, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 22
Mbps, 24 Mbps, 36 Mbps, 48 Mbps, 54 Mbps and 108Mbps. In most networking scenarios,
the factory default Fully Auto setting proves the most efficient. This setting allows your card
to operate at the maximum transmission (data) rate. When the communication quality drops
below a certain level, the card automatically switches to a lower transmission (data) rate.
Transmission at lower data speeds is usually more reliable. However, when the
communication quality improves again, the card gradually increases the transmission (data)
rate again until it reaches the highest available transmission rate.
Types of Wireless Networks
Wireless LAN networking works in either of the two modes: ad-hoc and infrastructure. In
infrastructure mode, wireless devices communicate to a wired LAN via access points. Each
access point and its wireless devices are known as a Basic Service Set (BSS). An Extended
Service Set (ESS) is two or more BSSs in the same subnet. In ad hoc mode (also known as
peer-to-peer mode), wireless devices communicate with each other directly and do not use
an access point. This is an Independent BSS (IBSS).
To connect to a wired network within a coverage area using access points, set the card
operation mode to Infrastructure (BSS).

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When a number of wireless stations are connected using a single access point, you have a
Basic Service Set (BSS).
In the ESS diagram below, communication is done through the access points, which relay
data packets to other wireless stations or devices connected to the wired network. Wireless
stations can then access resources, such as a printer, on the wired network.

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In an ESS environment, users are able to move from one access point to another without
losing the connection. In the diagram below, when the user moves from BSS (1) to BSS (2)
the card automatically switches to the channel used in BSS (2).
Roaming in an ESS network diagram

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WIRELESS LAN SECURITY
Because wireless networks are not as secure as wired networks, its vital that security
settings are clearly understood and applied.
The list below shows the possible wireless security levels on your card starting with the most
secure. EAP (Extensible Authentication Protocol) is used for authentication and utilizes
dynamic WEP key exchange. EAP requires interaction with a RADIUS (Remote
Authentication Dial-In User Service) server either on the WAN or the LAN to provide
authentication service for wireless stations.
1. Wi-Fi Protected Access (WPA)
2. IEEE802.1X EAP with RADIUS Server authentication
3. WEP Encryption
4. Unique ESSID
DATA ENCRYPTION WITH WEP
The WEP (Wired Equivalent Privacy) security protocol is an encryption method designed to try
to make wireless networks as secure as wired networks. WEP encryption scrambles all data
packets transmitted between the card and the access point or other wireless stations to keep
network communications private. Both the wireless stations and the access points must use
the same WEP key for data encryption and decryption.
There are two ways to create WEP keys in your card.
•Automatic WEP key generation based on a password phrase called a passphrase.
The passphrase is case sensitive. You must use the same passphrase for all WLAN
cards with this feature in the same WLAN.
•For WLAN cards without the passphrase feature, you can still take advantage of this
feature by writing down the four automatically generated WEP keys from the Security
Settings screen of the wireless utility and entering them manually as the WEP keys in
the other WLAN card(s).
The card allows you to configure up to four WEP keys and only one key is used as the
default transmit key at any one time.
DONOTATTEMPT TO CONFIGURE OR CHANGE SECURITY SETTTINGS FOR A
NETWORK WITHOUT AUTHORIZATION AND WITHOUT CLEARLY UNDERSTANDING
THE SETTINGS YOUAREAPPLING. WITH POOR SECURITY SETTINGS, SENSITIVE
DATA YOU SEND CAN BE SEEN BY OTHERS.

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Chapter 2 - Getting Started
This chapter introduces the Card and prepares you to use the Wireless Utility.
2.1 About Your Card
With the Card, you can enjoy wireless mobility within almost any wireless networking environment.
The following lists the main features of your adapter.
9Automatic rate selection.
9Data transmission rates up to 300 Mbps
9Offers 64-bit and 128-bit WEP (Wired Equivalent Privacy) data encryption for network
security.
9Supports IEEE 802.1x and WPA (Wi-Fi Protected Access).
9Multiple antennas design.
9Driver support for Windows XP/2000.
2.2 Package Content
¾TEW-623PI Wireless N-Draft PCI Adapter
¾Installation CD
¾Multi-Language Quick Installation Guide
2.3 System Requirement
zPentium class computers with at least one available 32-Bit PCI Slot
zMicrosoft Windows XP or 2K
zCD-ROM drive
2.4 LED Definition
The following table describes the LED on the Card
STATUS POWER LED LINK LED
POWER OFF OFF OFF
POWER ON Slow Blinking OFF
Radio ON without association Two LEDs slow blinking mutually
Associated without traffic Two LEDs slow blinking together
Associated with traffic Two LEDs blinking together per traffic amount

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2.5 Wireless Utility & Card Hardware Installation
Follow the instructions below to install the Card and Utility.
STEP 1
Insert the Driver and Utility CD into CD drive
STEP 2
If your CD Autorun is enabled, the installation procedures will be started. Click Install Driver &
Utility button to start
STEP 3
The InstallShield Wizard prepares for installation.
IF YOU HAVE CONNECTED THE CARD TO YOUR COMPUTER,
PLEASE REMOVE IT FIRST.
NOTE

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STEP 4
The InstallShield Wizard prompts you for confirmation. Click Next on the following menu.
STEP 5
In the destination Folder screen you are asked to confirm the Destination Folder for the application
software. If you would like, you may change the destination folder to another location. Click Next
STEP 6
The wizard is ready to begin installation. Click Install on it.

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STEP 7
At the Software Installation menu click Continue Anyway.
STEP 8
Click Finish to complete the client utility installation.
STEP 9
At this moment please insert your Card to your Laptop, After the following window pop up, click
Next on the Found New Hardware Wizard

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STEP 10
Choose “Install the software automatically”, and click Next.
STEP 11
Click “Continue Anyway”.
STEP 12
Click Finish to complete the installation.

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2.6 Using the Utility to Configure Your Network
The following are explanations on how to configure and use the Utility program. After completing the
installation procedure, a new icon as shown below will automatically appear in the lower right tray bar.
Hold your mouse pointer over the icon, and double click the left mouse button to open the Wireless
Client Utility.
The Wireless Client Utility window as shown below will appear.
The user can now use any of the management functions available in the IEEE 802.11 Wireless Client
Utility.
2.6.1 Link Information
Click the Link Information tab to see general information about the program and its operation.

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The following table describes the items found on the Link Information screen.
Wireless Network Status
Profile Name The name of the current selected configuration profile. Set
up the configuration name on the Profile tab.
SSID Displays the wireless network name.
Link Status Shows whether the station is associated to the wireless
network.
Network Type The type of network the station is connected to. The options
include:
Infrastructure (access point)
Wireless Mode Displays the wireless mode. 802.11g, 11b or 11n-draft
Transmit Rate Displays the current transmit rate in Mbps.
AP MAC Address Displays the MAC address of the access point the wireless
card is associated to.
Signal Strength Shows the strength of wireless signal.
Channel
Control Channel Channel number of the control 20MHz channel
Extension Channel To locate the 40MHz channel on combination with the control
channel
Channel Width 20MHz only or 40/20MHz channel support
Security Status
Security Shows the security type – Disable, WEP, WPA/WPA2,
WAP-PSK/WAP2-PSK or 802.1X
Authentication Displays the authentication mode.
TCP/IP Status
IP Address Displays the computer's IP address.
Subnet Mask Displays subnet mask
Gateway Displays gateway address
DNS Server Display DNS server address

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2.6.2 Site Survey
Click the Site Survey tab to see available infrastructure and ad hoc networks.
On this screen, click Refresh to refresh the list at any time.
Connecting to a different network
Hold your mouse pointer over the network icon, and click the right mouse button to select the network.
Click the Connect button to connect the available network. If no configuration profile exists for that
network, the Profile Settings window opens to ask to create a profile for the network. Follow the
procedures to create profile for that network.

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2.6.3 Profile
To add a new configuration profile, click Add on the Profile tab.
To modify a configuration profile, select the configuration from the Profile list and click the Edit button.
Scan Available Networks
Click the Browse button on the Profile Settings screen to scan for available infrastructure and ad hoc
networks. On this list, click Refresh to refresh the list at any time.

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To confirm a profile for Infrastructure mode, check the Network Type field on the Profile Settings.
Click Next to continue the profile setting.
To define the security mode, select the security button of the desired security mode. And then click
Next to continue. Please see following table for details of security modes.
WEP This card support three modes of WEP, include:
64 Bits
128 Bits
152 Bits
Except 152-Bit ode, both 64-Bit & 128-Bit modes support
Passphrase.
WPA/WPA2 Enables the use of Wi-Fi Protected Access (WPA).
Choosing WPA/WPA2 opens the WPA/WPA2 Security Settings
screen. The options include:
TLS (Transport Layer Security) is a Point-to-Point Protocol
(PPP) extension supporting additional authentication methods
within PPP. Transport Layer Security (TLS) provides for mutual
authentication, integrity-protected cipher suite negotiation, and key
exchange between two endpoints.
PEAP (EAP-GTC) (Protected Extensible Authentication
Protocol) authenticates wireless LAN clients using only
server-side digital certificates by creating an encrypted SSL/TLS

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tunnel between the client and the authentication server. The tunnel
then protects the subsequent user authentication exchange.
PEAP (EAP-MSCHAP V2)(Protected Extensible
Authentication Protocol)To use PEAP (EAP-MSCHAP V2)
security, the server must have WPA-PEAP certificates, and
the server properties must already be set. Check with the IT
manager
TTLS (Tunneled Transport Layer Security) An EAP variant that
provides mutual authentication using a certificate for server
authentication, and via a secure TLS tunnel for the client
LEAP (Lightweight and Efficient Application Protocol)
is the general framework for a set of high-performance,
efficient protocols which are ideal for mobile and wireless
applications. LEAP is designed to address all the technical
requirements of the wireless data communications industry,
and is oriented towards providing the greatest benefit to the
industry and the consumer
WPA-PSK/WPA2-PSK Enables WPA/WPA2 Passphrase security.
Fill in the WPA/WPA2 Passphrase on Security Settings screen.
802.1x Enables 802.1x security. This option requires IT administration.
Choosing 802.1x opens the 802.1x Security Settings screen. The
options include:
TLS
PEAP
TTLS
LEAP
Advanced Settings
After Security Settings finished, the Advanced Settings screen will be shown as following.