User manual AIRLIVE WN-250USB

[. . . ] Table of Contents WN-250USB W ireless 11b/g/n 150Mbps Mini USB Dongle User's Manual WN-250USB User's Manua Copyright & Disclaimer Copyright & Disclaimer No part of this publication may be reproduced in any form or by any means, whether electronic, mechanical, photocopying, or recording without the written consent of OvisLink Corp. OvisLink Corp. has made the best effort to ensure the accuracy of the information in this user's guide. However, we are not liable for the inaccuracies or errors in this guide. All information is subject to change without notice All Trademarks are properties of their respective holders. WN-250USB User's Manual 2 Copyright & Disclaimer 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 FCC Rules. [. . . ] Some of information in this glossary might be outdated, please use with caution. 802. 11a An IEEE specification for wireless networking that operates in the 5 GHz frequency range (5. 15 GHz to 5. 850 GHz) with a maximum of 54Mbps data transfer rate. The 5GHz frequency band is not as crowded as the 2. 4GHz band. In addition, the 802. 11a have 12 non-overlapping channels, comparing to 802. 11b/g's 3 non-overlapping channels. This means the possibility to build larger non-interfering networks. However, the 802. 11a deliver shorter distance at the same output power when comparing to 802. 11g. 802. 11b International standard for wireless networking that operates in the 2. 4GHz frequency band (2. 4 GHz to 2. 4835 GHz) and provides a throughput up to 11 Mbps. 802. 11d Also known as "Global Roaming". 802. 11d is a standard for use in countries where systems using other standards in the 802. 11 family are not allowed to operate. 802. 11e The IEEE QoS standard for prioritizing traffic of the VoIP and multimedia applications. The WMM is based on a subset of the 802. 11e. WN-250USB User's Manual 38 5. Wireless Network Glossary 802. 11g A standard provides a throughput up to 54 Mbps using OFDM technology. It also operates in the 2. 4GHz frequency band as 802. 11b. 802. 11g devices are backward compatible with 802. 11b devices. 802. 11h This IEEE standard define the TPC (transmission power control) and DFS (dynamic frequency selection) required to operate WiFi devices in 5GHz for EU. 802. 11i The IEEE standard for wireless security, 802. 11i standard includes TKIP, CCMP, and AES encryption to improve wireless security. It is also know as WPA2. 802. 11n 802. 11n is a recent amendment which improves upon the previous 802. 11 standards by adding multiple-input multiple-output (MIMO) and many other newer features. The IEEE has approved the amendment and it was published in October 2009. Enterprises, however, have already begun migrating to 802. 11n networks based on the Wi-Fi Alliance's certification of products conforming to a 2007 draft of the 802. 11n proposal. 802. 11n provides a throughput up to 300Mbps using OFDM technology. 802. 3ad 802. 3ad is an IEEE standard for bonding or aggregating multiple Ethernet ports into one virtual port (also known as trunking) to increase the bandwidth. 802. 3af This is the PoE (Power over Ethernet) standard by IEEE committee. 803. af uses 48V POE standard that can deliver up to 100 meter distance over Ethernet cable. 39 WN-250USB User's Manual 5. Wireless Network Glossary 802. 1d STP Spanning Tree Protocol. It is an algorithm to prevent network from forming. The STP protocol allows net work to provide a redundant link in the event of a link failure. It is advise to turn on this option for multi-link bridge network. 802. 1Q Tag VLAN In 802. 1Q VLAN, the VLAN information is written into the Ethernet packet itself. Each packet carries a VLAN ID (called Tag) as it traveled across the network. [. . . ] The used of channel binding might be prohibited in EU countries. TX Output Power Transmit Output Power. The TX output power means the transmission output power of the radio. Normally, the TX output power level limit for 2. 4GHz 11g/b is 20dBm at the antenna end. The output power limit for 5GHz 802. 11a is 30dBm at the antenna end. UDP (User Datagram Protocol) A layer-4 network protocol for transmitting data which does not require acknowledgement from the recipient of the data. Upgrade To replace existing software or firmware with a newer version. WN-250USB User's Manual 52 5. [. . . ]