Edimax EW-7618Ug, User Manual

1

1 Introduction  

Thank you for purchasing the 802.11g USB XR

TM

 Wireless LAN USB Adapter. The USB XR

TM

architecture improves wireless transmission over long distance and fully supports the MIMO XR

TM

technology which enables you to connect to wireless networks at farther distances than before. The 

adapter has one external and one internal antenna, designed with antenna diversity in receive and 

transmit to maintain high-data rates at farther distances. Not only the connection distance is enhanced, 

but also the “dead spots” in the network will be reduced. In addition, the adapter remains backward 

compatible to 802.11b and 802.11g. When the adapter is connecting to the standard 11g or 11b APs or 

Routers, it can perform much better than standard clients.

This adapter 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 

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

more effective. 

For WLAN security issues, this adapter 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 adapter supports WPA2 

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

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

When you use the devices such as Voice over Internet Protocol (VoIP) phones, televisions, VCRs and 

MP3 players, how can you speed up the audio, video and voice data to pass through the wireless 

network? IEEE 802.11e Quality of Service (QoS) (The Wi-Fi Alliance defined WMM as a profile of the 

IEEE 802.11e) extensions for 802.11 networks will help to define the priorities of the data traffics by the 

data categories to provide enhanced multimedia support. This adapter supports the advanced 

technology for sure. 

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

your wireless network.