N.TOP. 802.11n Ceiling Mount Long Range PoE AP. User s Manual

N.TOP 802.11n Ceiling Mount Long Range PoE AP User s Manual

Copyright and 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. Please use with caution. All information is subject to change without notice All Trademarks are properties of their respective holders. This product contains some codes from GPL. In compliance with GPL agreement, AirLive will publish the GPL codes on our website. Please go to www.airlive.com and go to the "Support GPL" menu to download source code. i AirLive N.TOP User s Manual

Copyright and Disclaimer FCC Statement 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. For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of other channels is not possible. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. IMPORTANT NOTE FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. AirLive N.TOP User s Manual ii

Table of Contents Table of Contents 1. Introduction... 1 1.1 Overview... 1 1.2 Firmware Upgrade and Tech Support... 1 1.3 Features... 2 1.4 Wireless Operation Modes... 3 1.4.1 Access Point Mode... 3 1.4.2 Client Mode... 4 1.4.3 Bridge Mode... 4 1.4.4 WDS Repeater Mode... 5 1.4.5 Universal Repeater Mode... 6 2. Installing the N.TOP... 7 2.1 Package Content... 7 2.2 Knowing your N.TOP... 7 2.3 Hardware Installation... 8 2.4 LED Indicators... 10 2.5 Button and Connector Definition... 11 3. Configuring the N.TOP... 13 3.1 Important Information... 13 3.2 Prepare your PC... 14 3.3 Introduction to IP Finder... 15 3.4 Introduction to Web Management... 17 3.4.1 Getting into Web Management... 17 3.4.2 Main Menu... 17 3.5 Configuring with Setup Wizard... 19 3.6 Initial Configurations... 20 3.6.1 Changing the Regulatory Domain... 20 3.6.2 Change the Device s IP Address... 21 3.6.3 Set the Time and Date... 22 3.6.4 Change Password... 23 iii AirLive N.TOP User s Manual

Table of Contents 4. Wireless Settings... 24 4.1 About Wireless Modes... 24 4.2 Basic Wireless Functions... 25 4.2.1 Wireless Mode... 26 4.2.2 Regulatory Domain... 26 4.2.3 Band... 27 4.2.4 Network Name (SSID)... 27 4.2.5 Broadcast SSID... 27 4.2.6 Multiple SSID... 27 4.2.7 Channel... 28 4.2.8 Channel Width... 29 4.2.9 Wireless Client Limit... 29 4.2.10 Security... 29 4.2.11 WMM... 32 4.2.12 Data Rate... 32 4.2.13 N Data Rate... 32 4.3 Advance Settings... 33 4.4 Access Control... 35 4.5 Site Survey... 36 4.6 WPS... 38 4.7 Wireless Scheduling... 39 5. System Configurations... 40 5.1 Menu Structure... 40 5.2 LAN Interface Setup... 41 5.2.1 DHCP Settings... 41 5.2.2 Set Static DHCP... 42 5.2.3 Domain Name... 42 5.2.4 802.11d Spanning Tree... 42 5.2.5 Clone MAC Address... 42 5.2.6 Enable AirLive IP Finder Management... 42 5.3 Time Settings... 43 5.4 Password Settings... 44 5.5 Watchdog... 45 5.6 Firmware Upgrade... 46 AirLive N.TOP User s Manual iv

Table of Contents 5.7 Configuration Save and Restore... 47 5.8 Factory Default... 48 6. Status Menu... 49 6.1 Menu Structure... 49 6.2 Device Information... 50 6.3 Statistic... 51 6.4 Log... 52 7. Frequent Asked Questions... 53 8. Specifications... 55 8.1 Hardware Features... 55 8.1.1 General Hardware Feature... 55 8.1.2 Antenna... 55 8.1.3 Power Supply... 55 8.1.4 Dimension and Weight... 55 8.1.5 EMI... 55 8.2 Radio Specifications... 55 8.2.1 Frequency Band... 55 8.2.2 Rate and Modulation... 56 8.2.3 TX Output Power... 56 8.2.4 Supported WLAN Mode... 56 8.2.5 Supported WLAN Encryption... 56 8.3 Software Feature... 56 8.3.1 Operation Mode... 57 8.3.2 Management Interface... 57 8.3.3 Advance Functions... 57 8.4 Environmental... 57 8.4.1 Environmental... 57 9. Wireless Network Glossary... 58 v AirLive N.TOP User s Manual

1. Introduction 1 1. Introduction 1.1 Overview The N.TOP is a ceiling mount wireless multi-function AP based on 300Mbps 2T2R Wireless b/g/n MIMO standard radio technologies. The Wireless Access Point is equipped with one 10/100 Mbps Auto-sensing Ethernet ports for connecting to LAN and also for cascading to next Wireless Access Point. It has built-in 802.3af PoE port for installation up to 100 meter away from the power source. 1.2 Firmware Upgrade and Tech Support If you encounter a technical issue that can not be resolved by information on this guide, we recommend that you visit our comprehensive website support at www.airlive.com. The tech support FAQ are frequently updated with latest information. 1 AirLive N.TOP User s Manual

1. Introduction In addition, you might find new firmware that either increase software functions or provide bug fixes for N.TOP. You can reach our on-line support center at the following link: http://www.airlive.com/support/support_2.jsp Since 2009, AirLive has added the Newsletter Instant Support System on our website. AirLive Newsletter subscribers receives instant email notifications when there are new download or tech support FAQ updates for their subscribed airlive models. To become an AirLive newsletter member, please visit: http://www.airlive.com/member/member_3.jsp AirLive Newsletter Suppport System 1.3 Features 300Mbps 802.11b/g/n Standard Up to 27dBm output power (limited to 20dBm in EU, 23dBm in U.S.) Built-in MIMO Antennas 4MB Flash and 32MB SDRAM 5 wireless multi-function modes: AP, Client, WDS Bridge, WDS Repeater and Universal Repeater. R-SMA connector antenna. 1 x 10/100 Ethernet Port with IEEE 802.3af PoE support Web management Easy Setup Wizard Wireless Access Control,Multiple SSID and Virtual AP AirLive N.TOP User s Manual 2

1. Introduction Wireless Client Limit, Client Isolation and Watchdog IP Finder Management Utility Optional 802.2af POE Injector (AirLive POE-48PB) or PoE switch is required for PoE installation. Green WLAN for Power Saving 1.4 Wireless Operation Modes The N.TOP can perform as a Multi-Function wireless device. Through the AirLogic web interface, users can easily select which wireless mode they wish the N.TOP to perform. N.TOP Wireless Operation Mode Wireless Mode Radio WAN Application Access Point AP None Hotspot (Indoor and Outdoor) Client Client None WISP Client Bridge Bridge None Building to Building network WDS Repeater AP + Client None Extend distance of another WDS AP/Router Universal Repeater AP + Client None Extend distance of any AP Router 1.4.1 Access Point Mode When operating in the Access Point mode, the N.TOP becomes the center hub of the wireless network. All wireless cards and clients connect and communicate through N.TOP. This type of network is known as Infrastructure Network. Other N.TOP or 802.11b/g/n device can connect to AP mode through Client Mode. 3 AirLive N.TOP User s Manual

1. Introduction 1.4.2 Client Mode This mode is also known as Client mode. For N.TOP, there are 2 types of Client modes: Infrastructure and Adhoc mode. In Infrastructure mode, the N.TOP acts as if it is a wireless adapter to connect with a remote Access Point. Users can attach a computer or a router to the LAN port of N.TOP to get network access. This mode is often used by WISP on the subscriber s side. In Client Ad Hoc mode, N.TOP can connect to other wireless adapters without access point. Users can attach a computer or a router to the LAN port of N.TOP to get network access. 1.4.3 Bridge Mode This mode is also known as WDS Pure MAC Bridge mode. When configured to operate in the Wireless Distribution System (WDS) Mode, the N.TOP provides bridging functions with remote LAN networks in the WDS system. The system will support up to total of 8 bridges in a WDS network (by daisy chain). However, each bridge can only associate with maximum of 4 other bridges in the WDS configuration. This mode is best used when you want to connect LAN networks together wirelessly (for example, between office and warehouse). If you have more than 2 AP in WDS Bridges mode, please remember to turn on the 802.1d Spanning Tree or STP option on to avoid network loop. This mode usually delivers faster performance than infrastructure mode. AirLive N.TOP User s Manual 4

1. Introduction 1.4.4 WDS Repeater Mode In WDS Repeater mode, the N.TOP functions as a repeater that extends the range of remote wireless LAN. In this mode, the remote Access Point must have WDS (Wireless Distribution System) capability. If you require the PC s MAC addresses to be preserved when the data pass through the Repeater, it is necessary to use the WDS Repeater mode. Because the radio is divided into WDS + AP mode, the Repeater mode will have less performance and distance. 5 AirLive N.TOP User s Manual

1. Introduction 1.4.5 Universal Repeater Mode In Universal Repeater mode, the N.TOP functions as a repeater that extends the range of remote wireless LAN. This mode can repeat the signal of any remote AP/Router, even if they do not have WDS capability. However, the MAC addresses of any wireless traffic going through Universal Repeater are translated into the Repeater s MAC address. As a result, any applications that require identification by MAC address (such as hotspot or firewall) can not use this mode. It is also recommended to use DHCP Relay function to get IP address from remote DHCP server. Because the radio is divided into Client + AP mode, the Repeater mode will have less performance and distance. AirLive N.TOP User s Manual 6

2. Installing the N.TOP 2 2. Installing the N.TOP This section describes the installation procedure for the N.TOP. It starts with a summary of the content of the package you have purchased, followed by steps of how to power up and connect the N.TOP. Finally, this section explains how to configure a Windows PC to communicate with the N.TOP. 2.1 Package Content The N.TOP package contains the following items: One N.TOP main unit One 5V DC power adapter One CD of the N.TOP Quick Start Guide 2.2 Knowing your N.TOP Below are descriptions and diagrams of the product: 1 2 1 2 Power Adapter Connector LAN Port, PoE Port 7 AirLive N.TOP User s Manual

2. Installing the N.TOP 2.3 Hardware Installation 朱 毋 充 凹 以 Before you starting hardware connection, you are advised to find an appropriate location to place the Access Point. Usually, the best place for the Access Point is at the center of your wireless network, with line of straight to all your wireless stations. 1. Screw the bottom case into the wall. 2. There are two ways to connect N.TOP, AirLive N.TOP User s Manual 8

2. Installing the N.TOP (1) Via PoE N.TOP is equipped with 802.3af compliant PoE port. You can select AirLive PoE-48PB for the deployment of the PoE network environment. The POE-48PB is an optional accessory that must be purchased separately. You must use Cat.5E or better graded Ethernet Cable for PoE Installation. (2) Via power adapter 9 AirLive N.TOP User s Manual

2. Installing the N.TOP 3. Put the case screws back. 2.4 LED Indicators This section describes the LED behavior of N.TOP. You can find the LED in front of the N.TOP. AirLive N.TOP User s Manual 10

2. Installing the N.TOP LED Display Status Description 1 2 3 PWR WLAN LAN On Slow Blinking Off On Off The access point is switched on and correctly powered. System is reset to factory default, at the same time WLAN LED is on. The access point is switched off. Wireless WPS mode is enabled. Wireless network is switched off. Flashing Wireless LAN activity (transferring or receiving data). On Off LAN port is connected LAN port is not connected Flashing LAN activity (transferring or receiving data) 2.5 Button and Connector Definition This section describes the button behavior of N.TOP. You can find the Button in front of the N.TOP. 11 AirLive N.TOP User s Manual

2. Installing the N.TOP Button Description Reset / WPS Reset the router to factory default settings (clear all settings) or start WPS function. Reset: Press this button and hold for 10 seconds to restore all settings to factory defaults. WPS: Press this button for less than 5 seconds to start WPS function. Connector Description Power Ethernet Power connector, connects to A/C power adapter. Local Area Network (LAN) port. AirLive N.TOP User s Manual 12

3. Configuring the N.TOP 3 3. Configuring the N.TOP The N.TOP offers web browser (http) as management interface. In this chapter, we will explain N.TOP s web management interface and how to get into them. 3.1 Important Information The following information will help you to get start quickly. However, we recommend you to read through the entire manual before you start. Please note the password and SSID are case sensitive. q The default IP address is: 192.168.1.254 Subnet Mask: 255.255.255.0 q The default user s name is: admin q The default password is: airlive q The default SSID is: airlive q The default wireless mode is : AP mode q After power on, please wait for 1 minutes for N.TOP to finish boot up q Please remember to click on Apply for new settings to take effect q You must reboot the N.TOP after you finish all the settings for changes to take effect q The default regulatory domain is ETSI for Europe. If you are not living in EU countries, you might wish to change the regulatory domain. However, please do not choose regulatory domain that does not apply to your country. Using wrong regulatory domain might be illegal. q By Default, the DHCP server is turned off, please to configure your PC s IP address manually. 13 AirLive N.TOP User s Manual

3. Configuring the N.TOP 3.2 Prepare your PC The N.TOP can be managed remotely by a PC through either the wired or wireless network. The default IP address of the N.TOP is 192.168.1.254 with a subnet mask of 255.255.255.0. This means the IP address of the PC should be in the same subnet of the N.TOP.. To prepare your PC for management with the N.TOP, please do the following: 1. Connect your PC directly to the LAN port of N.TOP 2. Set your PC s IP address manually to 192.168.1.100 (or other address in the same subnet) You are ready now to configure the N.TOP using your PC. AirLive N.TOP User s Manual 14

3. Configuring the N.TOP 3.3 Introduction to IP Finder The N.TOP provides IP Finder utility and you can get into web management easily. IP Finder is included in the CD. Just click and follow the step by step instruction to install. While entering the IP Finder utility, the IP Finder will automatically search the AP available on the network. IP Finder will show the Device Name, IP Address, HTTP Port, and Ethernet MAC Address. Before start using IP Finder, make sure you disable personal firewall installed in you PC. (Ex. Windows XP personal firewall) Search: By clicking Search, IP Finder will try to discover the N.TOP on the network. View: The function is for IP Camera only. It does not work for PC. LAN: You can configure the N.TOP LAN IP address here. After enter the IP Address, press >> to the next page. If you would like to change the N.TOP login password, please check the box and enter the new password. Please note that the password should be filled before clicks submit. Exit: Click to close IP Finder. 15 AirLive N.TOP User s Manual

3. Configuring the N.TOP Click to the next page Before submit, please input N.TOP password first. The default password is airlive. AirLive N.TOP User s Manual 16 Click Submit to save the configuration.

3. Configuring the N.TOP 3.4 Introduction to Web Management The N.TOP can be configured using the Web management interfaces by simply typing its IP address in the web browser. Most functions of N.TOP can be accessed by it. If you are placing the N.TOP behind router or firewall, you might need to open the port 80 at virtual server on your firewall/router. This procedure is not necessary in most cases unless there is a router/firewall between your PC and N.TOP. 3.4.1 Getting into Web Management You can enter the web management by entering IP address into the web browser s address field. To get into the Normal Web Management, simply type in the N.TOP s IP address (default IP is 192.168.1.254) into the web browser s address field. 3.4.2 Main Menu After key in the correct username and password, you will enter the main Web management screen. 17 AirLive N.TOP User s Manual

3. Configuring the N.TOP Wizard: The wizard will guide you to configure access point for first time. Please follow the setup wizard step by step. Wireless: You will find all the settings for wireless settings in this page. The N.TOP s wireless settings are different between wireless modes. System: All non-wireless and router mode settings are in this category. The system configurations including changing password, upload firmware, backup configuration, settings PING watchdog, and setting management. Status: This section for monitoring the status of N.TOP. It provides information on device status, Ethernet status, wireless status, wireless client table, and system log. Reboot: Please remember to save changes and reboot after you finish all settings. The changes will take effect only after reboot. AirLive N.TOP User s Manual 18

3. Configuring the N.TOP 3.5 Configuring with Setup Wizard You can browse to activate the Setup Wizard Step1: Login the Web UI of N.TOP, select Wizard for basic settings with simple way. Step2: Select wireless mode that you deserved, and click Next to continue. Step3: Setup your wireless settings such as SSID, Wireless Channel and Encryption Key etc, and click Finish to apply the setting or click on Previous to the previous settings. 19 AirLive N.TOP User s Manual

3. Configuring the N.TOP 3.6 Initial Configurations We recommend users to browse through N.TOP s web management interface to get an overall picture of the functions and interface. Below are the recommended initial configurations for first time login: 3.6.1 Changing the Regulatory Domain The Regulatory Domain decides what channels and TX output power levels are available for your country. In most cases, the Regulatory Domain is already selected correctly for your country. Please note that using the wrong Regulatory Domain is strictly prohibited. If you live inside EU, you must use the ETSI Regulatory Domain. If you live in United States, you must use FCC domain. The N.TOP is available with the following Regulatory Domain: Regulatory Domain Available Channels Maximum Tx Output Power ETSI (Europe) 1 ~13 20dBm FCC (United States) 1~11 23dBm South America(11 CH) 1~11 27dBm South America(14 CH) 1~14 27dBm To change Regulatory Domain, please go to the Wireless Settings page. AirLive N.TOP User s Manual 20

3. Configuring the N.TOP 3.6.2 Change the Device s IP Address The default IP address is at 192.168.1.254. You should change it to the same subnet as your network. Also, if you want to manage N.TOP remotely, you have to set the Gateway and DNS server information. To setup the IP settings for N.TOP, please select System Configuration -> LAN Interface Setup. After entering the IP information, click on Apply Changes to finish. 1 2 21 AirLive N.TOP User s Manual

3. Configuring the N.TOP 3.6.3 Set the Time and Date It is important that you set the date and time for your N.TOP so that the system log will record the correct date and time information. Please go to System Configuration ->Time Settings. We recommend you choose Enable NTP so the time will be keep even after reboot. If your N.TOP is not connected to Internet, please enter the time manually. Please remember to select your local time zone and click Apply to finish. 1 2 4 3 5 6 AirLive N.TOP User s Manual 22

3. Configuring the N.TOP 3.6.4 Change Password You should change the password for N.TOP at the first login. To change password, please go to System -> Password Settings menu. 23 AirLive N.TOP User s Manual

4. Wireless Settings 4 4. Wireless Settings In this chapter, we will explain about the wireless settings in web management interface. Please be sure to read through Chapter1 s Wireless Operation Mode and Chapter 3 s Introduction to Web Management and Initial Configurations first. Although router mode settings (WAN port, Virtual Server etc) are part of the wireless settings menu, they will be explained in Chapter 5. 4.1 About Wireless Modes The N.TOP has total of 5 operation modes to suit different application requirements. In this section, we will explain how to change between wireless operation modes. For explanation on each different operation mode, please read Chapter 1 section 1.4 first. Below is the summary table for different wireless modes: N.TOP Wireless Operation Mode Wireless Mode Radio WAN Application Access Point AP None Hotspot (Indoor and Outdoor) Client Client None WISP Client Bridge Bridge None Building to Building network WDS Repeater AP + Client None Extend distance of another WDS AP/Router Universal Repeater AP + Client None Extend distance of any AP Router To change between different wireless modes, please to go the Wireless menu, on the left hand side bar, you will see the Wireless Mode pull down menu which displays the current operation mode. AirLive N.TOP User s Manual 24

4. Wireless Settings To change wireless mode, please select the new wireless mode from the pull-down menu. The N.TOP will ask you to confirm about the mode change. After your confirmation, the AP will reboot itself to the new mode. 4.2 Basic Wireless Functions This section will explain the general wireless functions. Not all functions are available in every wireless mode. Please refer to the web interface what is available of each mode. When you select Wireless on the top menu; the following screen will appear: 25 AirLive N.TOP User s Manual

4. Wireless Settings 4.2.1 Wireless Mode Wireless -> Wireless There are 5 wireless modes such as AP, Bridge, Client, Repeater and more for you can work in different application environments 4.2.2 Regulatory Domain Wireless -> Regulatory Domain The Regulatory Domain decides what channels and Tx output power levels are available for your country. In most cases, the Regulatory Domain is already selected correctly for your country. Please note that using the wrong Regulatory Domain is strictly prohibited. If you live inside EU, you must use the ETSI Regulatory Domain. If you live in United States, you must use FCC domain. AirLive N.TOP User s Manual 26

4. Wireless Settings The N.TOP is available with the following Regulatory Domain: Regulatory Domain Available Channels Maximum Tx Output Power ETSI (Europe) 1 ~13 20dBm FCC (United States) 1~11 23dBm South America(11 CH) 1~11 29dBm South America(14 CH) 1~14 29dBm 4.2.3 Band Wireless -> Band N.TOP has 6 different options for WLAN transmission. All devices in the same network should use the same WLAN mode. 2.4 GHz (B): The radio will only connect at 11b mode. 2.4 GHz (G): The radio will only connect at 11g mode. 2.4 GHz (N): The radio will only connect at 11n mode. 2.4 GHz (B+G): The radio will auto adjust between 11g and 11b mode. 2.4 GHz (G+N): The radio will auto adjust between 11n and 11g mode. 2.4 GHz (B+G+N): The radio will auto adjust between 11n, 11g and 11b mode. It is recommended to use this mode. 4.2.4 Network Name (SSID) Wireless -> Network Name (SSID) The SSID is the network name used to identify a wireless network. The SSID must be the same for all devices in the same wireless network. The SSID length is up to 32 characters. The default SSID is airlive. 4.2.5 Broadcast SSID Wireless Settings -> Broadcast SSID When this function is disabled, the wireless network will become invisible. Only people who know the SSID name can join the network. It is recommended to use this feature to protect the network from intruders. However, once this function is disabled, it might be necessary to configure the wireless connection manually. This option is available in AP mode, AP Router mode, and Repeater modes only. 4.2.6 Multiple SSID Wireless -> Multiple SSID Multiple SSID allows Air3G to create up to 4 different wireless networks (SSID). It is also known as Virtual AP function. Each SSID can have its Encryption policy. The SSID1 is the main SSID under Wireless Setting page. 27 AirLive N.TOP User s Manual

4. Wireless Settings 4.2.7 Channel Wireless -> Channel The channel is the frequency range used by radio. In 802.11n/g/b standard, there are maximum of 14 Channels. However, the available channels in each country are dependant on the local regulation. If you are living in Europe, you can use channel 1 to 13. If you are living in the United States, you can use channel 1 to 11. Each wireless channel takes between 22 to 25MHz of frequency width. But the channels are only 5MHz apart. Therefore, only every 5 channels can be free of interference with each other. It is recommended that you can do a site survey to find about what channels are used by surrounding AP and choose a channel that is not used by other APs. Channel Frequency (MHz) U.S.A. Europe 1 2412 O O 2 2417 O O 3 2422 O O 4 2427 O O 5 2432 O O 6 2437 O O 7 2442 O O 8 2447 O O AirLive N.TOP User s Manual 28

4. Wireless Settings 9 2452 O O 10 2457 O O 11 2462 O O 12 2467 - O 13 2472 - O 14 2484 - - 4.2.8 Channel Width Wireless -> Channel Width You can choose 20MHz or 20/40MHz channel width. Choose 20MHz for compliance with laws in some countries. 40MHz offers faster performance than 20MHz 4.2.9 Wireless Client Limit Wireless -> Wireless Client Limit This limitation applies to number of wireless clients the device can associate. If you need to serve wireless connection to large number of users in one location. You can deploy many APs and limit the number of wireless clients, so any additional wireless connection attempt will be rejected (therefore, redirect to other AP). The range of user limitation is from 1 to 31. 4.2.10 Security Wireless -> Security Security settings allow you to use encryption to secure your data from eavesdropping. You can select different security policy to provide association authentication and/or data encryption. The N.TOP features various security policies including WEP, 802.1x, WPA, WPA Personal, WPA2, WPA2 Personal. 29 AirLive N.TOP User s Manual

4. Wireless Settings WEP WEP Encryption is the oldest and most available encryption method. However, it is also the least secure. AirLive N.TOP User s Manual 30

4. Wireless Settings Key Length: The N.TOP offers 64bit and 128 bit for WEP key length. The longer the Key Length, the more secure the encryption is. Key Format: 2 types are available: ASCII and HEX. ASCII is a string of ASCII code including alphabetical characters, space, signs and numbers (i.e. airlivepass12 ). HEX is a string of 16-bit hexadecimal digits (0..9, a, b, c, d, e, f). All wireless devices on the network must match the exact key length and Key type. Some Wireless clients only allow HEX type for WEP. WPA(TKIP), WPA(AES), WPA Mixed Wi-Fi Protected Access (WPA) introduces the Temporal Key Integrity Protocol (TKIP) that provides added security. WPA2 adds full support for 802.11i standard and the CCMP (AES Encryption). The WPA Mixed tries to authenticate wireless clients using both WPA-PSK and WPA2-PSK. Pre-Shared Key Format: You can select between Passphrase(ASCII) or HEX format. Please select Passphrase if you are not sure what to use. Pre-Shared Key: Enter the password key here.. WPA Radius Wi-Fi Protected Access (WPA) Enterprise uses Radius Server as the authenticator. WPA2 adds full support for 802.11i standard and the CCMP (AES Encryption). The WPA-Mixed tries to authenticate wireless clients using either WPA or WPA2. 31 AirLive N.TOP User s Manual

4. Wireless Settings 4.2.11 WMM Wireless -> WMM Wi-Fi Multimedia (WMM) is a standard to prioritize traffic for multimedia applications. The WMM prioritize traffic\ on Voice-over-IP (VoIP), audio, video, and streaming media as well as traditional IP data over the AP. The Wi-Fi Multiple Media function is available under 2.4GHz (B), 2.4GHz (G) and 2.4GHz (B+G) band, and it is enabled under 2.4GHz (N), 2.4GHz (G+N) and 2.4GHz (B+G+N) band. 4.2.12 Data Rate Wireless -> Data Rate Data Rate is the physical speed of transmission. The default setting is Auto. In Auto mode, the data rate will adjust according to the connection condition. It is advised to put the data rate in Auto. 4.2.13 N Data Rate Wireless -> N Data Rate N Data Rate is the physical speed of transmission for 802.11n. The default setting is Auto. In Auto mode, the data rate will adjust according to the connection condition. It is advised to put the data rate in Auto. However, you can also force the radio to operate at specific data rate. The highest for 11n is MCS15. AirLive N.TOP User s Manual 32