OvisLink ACTOP 11 AC Wide Range Ceiling Mount PoE Access Point User Manual AirLive AC TOP Manual

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Document Description	User Manual
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Date Submitted	2015-04-13 00:00:00
Date Available	2015-04-16 00:00:00
Creation Date	2015-03-27 17:17:39
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Document Lastmod	2015-04-13 10:07:14
Document Title	AirLive AC.TOP Manual
Document Creator	Acrobat PDFMaker 11 Word 版
Document Author:	AirLive

AC.TOP
11 AC Wide Range Ceiling
Mount PoE Access Point
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.
AirLive AC.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 AC.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................................................................. 2
1.4.1 Access Point Mode .................................................................. 2
1.4.2 WDS Repeater Mode ............................................................... 3
2. Installing the AC.TOP .............................................................................. 4
2.1 Package Content ............................................................................... 4
2.2 Knowing your AC.TOP ....................................................................... 4
2.3 Hardware Installation ......................................................................... 5
2.3.1 Ceiling Mount ........................................................................... 5
2.3.2 Install in T-Rail Mount............................................................... 6
2.3.3 Power up the AC.TOP .............................................................. 8
2.4 LED Indicators ................................................................................... 9
3. Configuring the AC.TOP ........................................................................ 10
3.1 Important Information ....................................................................... 10
3.2 Prepare your PC .............................................................................. 10
3.3 Introduction to IP Finder.................................................................... 11
3.4 Introduction to Web Management .................................................... 12
3.4.1 Getting into Web Management................................................12
3.4.2 Main Menu ..............................................................................13
3.5 Configuring with Setup Wizard ......................................................... 14
3.6 Initial Configurations ........................................................................ 16
3.6.1 Change the Device’s IP Address ..........................................16
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AirLive AC.TOP User’s Manual
Table of Contents
3.6.2 Set the Time and Date ..........................................................17
3.6.3 Change Password ................................................................18
4. Wireless Settings ................................................................................... 19
4.1 About Wireless Modes ..................................................................... 19
4.2 Basic Wireless Functions ................................................................. 20
4.2.1 Wireless Mode ........................................................................20
4.2.2 Band .......................................................................................21
4.2.3 Network Name (SSID) ............................................................22
4.2.4 Broadcast SSID ......................................................................22
4.2.5 Multiple SSID ..........................................................................22
4.2.6 Auto Channel ..........................................................................23
4.2.7 Channel ..................................................................................23
4.2.8 Channel Width ........................................................................24
4.2.9 Wireless Client Limit ...............................................................24
4.2.10 Security .................................................................................25
4.2.11 WMM ....................................................................................28
4.2.12 Data Rate..............................................................................28
4.2.13 RF Power ..............................................................................28
4.3 Advance Settings ............................................................................. 29
4.4 Access Control ................................................................................. 31
4.5 Site Survey ...................................................................................... 31
4.6 WPS ................................................................................................ 33
4.7 Wireless Scheduling ........................................................................ 34
4.8 RADIUS ........................................................................................... 34
4.8.1 RADIUS Settings ....................................................................35
4.8.2 Internal Server ........................................................................36
4.8.3 RADIUS Accounts ...................................................................37
5. System Configurations.......................................................................... 40
5.1 Menu Structure ................................................................................ 40
5.2 LAN Interface Setup ........................................................................ 40
AirLive AC.TOP User’s Manual
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Table of Contents
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
DHCP Settings .....................................................................41
Set Static DHCP ...................................................................42
Domain Name ......................................................................42
802.11d Spanning Tree.........................................................42
Clone MAC Address .............................................................42
Enable AirLive IP Finder Management .................................42
5.3 Time Settings ................................................................................... 43
5.4 Password Settings ........................................................................... 43
5.5 Management.................................................................................... 44
5.6 Firmware Upgrade ........................................................................... 45
5.7 Configuration Save and Restore ...................................................... 46
5.8 Factory Default ................................................................................ 46
6. Status Menu ........................................................................................... 47
6.1 Menu Structure ................................................................................ 47
6.2 Device Information ........................................................................... 48
6.3 Statistic ............................................................................................ 50
6.4 Log .................................................................................................. 50
7. Frequent Asked Questions ................................................................... 52
8. Specifications ........................................................................................ 54
8.1 Hardware Features .......................................................................... 54
8.1.1 General Hardware Feature .....................................................54
8.1.2 Antenna ..................................................................................54
8.1.3 Power Supply..........................................................................54
8.1.4 Dimension and Weight ............................................................54
8.1.5 Certification .............................................................................54
8.2 Radio Specifications ........................................................................ 54
8.2.1 Frequency Band .....................................................................54
8.2.2 Output Power and Sensitivity ..................................................55
8.2.3 TX Output Power ....................................................................55
AirLive AC.TOP User’s Manual
Table of Contents
8.2.4 Supported WLAN Mode ..........................................................55
8.2.5 Supported WLAN Encryption ..................................................56
8.3 Software Feature ............................................................................. 56
8.3.1 Operation Mode ......................................................................56
8.3.2 Management Interface ............................................................56
8.3.3 Advance Functions..................................................................56
8.4 Environment .................................................................................... 56
8.4.1 Environment............................................................................56
9. Wireless Network Glossary ................................................................... 57
AirLive AC.TOP User’s Manual
vi
1. Introduction
1. Introduction
1.1 Overview
The AC.TOP is a ceiling mount wireless multi-function AP based on 1200Mbps 2T2R
Wireless AC+ b/g/n MIMO standard radio technologies. It is 2.4G/5G dual band concurrent.
The Wireless Access Point is equipped with one Gigabit 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.
In addition, you might find new firmware that either increase software functions or provide
bug fixes for AC.TOP in our website.
AirLive AC.TOP User’s Manual
1. Introduction
1.3 Features













1200Mbps 802.11AC+b/g/n Standard
Up to 23dBm output power (limited to 20dBm in EU)
Built-in MIMO Antennas
8MB Flash and 64MB SDRAM
2 wireless multi-function modes: AP, WDS repeater
1 x 10/100/1000 Mbps Ethernet Port with IEEE 802.3af PoE support
Web management
Easy Setup Wizard
Wireless Access Control ,Multiple SSID up to 32 and Virtual AP
Wireless Client Limit, Client Isolation and Watchdog
IP Finder Management Utility
AirLive Central Wireless Management
Green WLAN for Power Saving
1.4 Wireless Operation Modes
The AC.TOP can perform as a Multi-Function wireless device. Through the wizard web
interface, users can easily select which wireless mode they wish the AC.TOP to perform.
AC.TOP Wireless Operation Mode
Wireless Mode
Radio 5G
Radio 2.4G
Application
Access Point
WDS Repeater
AP
WDS
AP
WDS
Hotspot (Indoor and Outdoor)
Extend distance of another WDS
AP/Router
AC.TOP are dual radio device, you also can change the operation mode for each radio.
Each radio can be set to difference Operation Mode such as AP mode in 2.4G and WDS
repeater mode in 5G
1.4.1 Access Point Mode
When operating in the Access Point mode, the AC.TOP becomes the center hub of the
wireless network. All wireless cards and clients connect and communicate through AC.TOP.
This type of network is known as “Infrastructure Network”. Other AC.TOP or 802.11b/g/n
device can connect to AP mode through “Client Mode”.
AirLive AC.TOP User’s Manual
1. Introduction
1.4.2 WDS Repeater Mode
In WDS Repeater mode, the AC.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.
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
2. Installing
the AC.TOP
This section describes the installation procedure for the AC.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 AC.TOP. Finally, this section explains how to configure a Windows PC to
communicate with the AC.TOP.
2.1 Package Content
The AC.TOP package contains the following items:
 One AC.TOP main unit
 One 12V DC power adapter
 One CD of the AC.TOP
 Quick Installation Guide
2.2 Knowing your AC.TOP
Below are descriptions and diagrams of the product:
Ethernet Port/ PoE In
Power Jack (DC IN)
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
2.3 Hardware Installation
※Note
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.
There are two methods to mound the AC.TOP. Ceiling mount and T-rail Mount
2.3.1 Ceiling Mount
If you want to mount the AC.TOP into wood ceiling
1. Place the ceiling mount bracket to a ceiling in your desired location and insert screw
through hole (x 2) and tighten to fix the bracket in place.
2.
When the ceiling bracket is in place, inset screw into hole (x 2) on the access point.
3. Fix the access point to the ceiling bracket by inserting the attached screws into hole
and twisting the access point.
4. Lock the access point firmly into place when by twisting it to align screws with the
grooves in the ceiling mount.
If you want to mount the AC.TOP into other ceilings
1. Place the ceiling mount bracket to a ceiling in your desired location and insert screw
through hole (x 2) and tighten to fix the bracket in place, as shown in A.
2. Insert screw through hole and into the rear of screw and tighten to provide additional
strength.
3. When the ceiling bracket is in place, insert screw into hole (x 2) on the access point.
4. Fix the access point to the ceiling bracket by inserting the attached screws into hole
and twisting the access point.
5. Lock the access point firmly into place by twisting it to align screws with the grooves in
the ceiling mount.
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
2.3.2 Install in T-Rail Mount
To mount the access point to a T-Rail, please follow the instructions below and refer to
diagram C, D & E.
1. Select the correct size T-Rail bracket from the two sizes which are included in the
package contents.
2.
Attach the T-Rail bracket to hole using screw (x 2) as shown in C.
If you need more space between the access point and the T-Rail,
then additionally use bracket between bracket and hole (x 2), and
use the longer screws (x 2) included in the package contents.
3.
Clip the access point onto your T-Rail using the now attached T-Rail bracket.
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
2.3.3 Power up the AC.TOP
There are two way to power up the AC.TOP
1. Power by PoE
AC.TOP is equipped with 802.3at compliant PoE port. You can select AirLive
PoE-48PB v2 or PoE switch such as POE-GSH2004L-370 for the deployment of
the PoE network environment. The POE-48PB v2 and POE-GSH2004L-370 is an
optional accessory that must be purchased separately. You must use Cat.5E or
better graded Ethernet Cable for PoE Installation.
2. Power by Power Adapter
Connect 12V adaptor to Power up the AC.TOP
Do not use the power adapter if you are using a PoE
switch.
AirLive AC.TOP User’s Manual
2. Installing the AC.TOP
2.4 LED Indicators
This section describes the LED behavior of AC.TOP.
You can find the LED in front of the AC.TOP.
LED Color
LED Status
Description
Blue
On
The access point is starting up.
Purple
On
The access point is on.
Amber
Flashing
Off
Off
Error.
The access point is off.
AirLive AC.TOP User’s Manual
3. Configuring the AC.TOP
3. Configuring
the AC.TOP
The AC.TOP offers web browser (http) as management interface. In this chapter, we will
explain AC.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.










The default IP address is: 192.168.1.254
Subnet Mask: 255.255.255.0
The default user’s name is: admin
The default password is: airlive
The default SSID for 2.4G is: airlive
The default SSID for 5G is: airlive 5g
The default wireless mode is : AP mode
After power on, please wait for 1 minutes for AC.TOP to finish boot up
Please remember to click on “Apply” for new settings to take effect
You must reboot the AC.TOP after you finish all the settings for changes to
take effect
By Default, the DHCP server is turned off, please to configure your PC’s IP
address manually.
3.2 Prepare your PC
The AC.TOP can be managed remotely by a PC through either the wired or wireless
network. The default IP address of the AC.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
AC.TOP.
AirLive AC.TOP User’s Manual
10
3. Configuring the AC.TOP
To prepare your PC for management with the AC.TOP, please do the following:
1. Connect your PC directly to the LAN port of AC.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 AC.TOP using your PC.
3.3 Introduction to IP Finder
The AC.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 your PC.
(Ex. Windows XP personal firewall)
11
AirLive AC.TOP User’s Manual
3. Configuring the AC.TOP



Search: By clicking Search, IP Finder will try to discover the AC.TOP on the network.
View: The function is for IP Camera only. It does not work for AC.TOP.
Exit: Click to close IP Finder.
3.4 Introduction to Web Management
The AC.TOP can be configured using the Web management interfaces by simply typing its
IP address in the web browser. Most functions of AC.TOP can be accessed by it.
If you are placing the AC.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 AC.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.
AirLive AC.TOP User’s Manual
12
3. Configuring the AC.TOP

To get into the Normal Web Management, simply type in the AC.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.

Wizard:
The wizard will guide you to configure access point for first time. Please follow the
setup wizard step by step.
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AirLive AC.TOP User’s Manual
3. Configuring the AC.TOP

Wireless:
You will find all the settings for wireless settings in this page. The AC.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 AC.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.
3.5 Configuring with Setup Wizard
You can browse to activate the Setup Wizard
Step1: Login the Web UI of AC.TOP, select “Wizard” for basic settings with simple way.
AirLive AC.TOP User’s Manual
14
3. Configuring the AC.TOP
Step2: Select wireless mode that you deserved, and click “Next” to continue.
Step3: Setup your wireless settings for 2.4G band such as SSID, Wireless Channel and
Encryption Key…etc, and click “Next” to apply the setting or click on “Previous” to the
previous settings.
In this mode, the AC.TOP will act as a center
hub for the wireless network. Please choose
this mode if you already have a router and
want to create a new wireless network.
15
AirLive AC.TOP User’s Manual
3. Configuring the AC.TOP
Step 4: Setup your wireless settings for 5G band such as SSID, Wireless Channel and
Encryption Key…etc, and click “Finish” to apply the setting or click on “Previous” to the
previous settings.
In this mode, the AC.TOP will act as a center
hub for the wireless network. Please choose
this mode if you already have a router and
want to create a new wireless network.
3.6 Initial Configurations
We recommend users to browse through AC.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 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 AC.TOP remotely, you have to set the Gateway
and DNS server information.
To setup the IP settings for AC.TOP, please select “System” -> LAN Interface Setup”.
After entering the IP information, click on “Apply Changes” to finish.
AirLive AC.TOP User’s Manual
16
3. Configuring the AC.TOP
3.6.2 Set the Time and Date
It is important that you set the date and time for your AC.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 AC.TOP is not connected to Internet, please enter the time manually.
Please remember to select your local time zone and click “Apply” to finish.
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AirLive AC.TOP User’s Manual
3. Configuring the AC.TOP
3.6.3 Change Password
You should change the password for AC.TOP at the first login. To change password,
please go to “System” -> “Password Settings” menu.
AirLive AC.TOP User’s Manual
18
4. Wireless Settings
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 AC.TOP has 2 operation modes to suit different application requirements. In this
section, we will explain how to change between wireless operations 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:
AC.TOP Wireless Operation Mode
Wireless Mode
Access Point
WDS Repeater
Radio
WAN
AP
None
AP + Client None
Universal Repeater
AP + Client None
Application
Hotspot (Indoor and Outdoor)
Extend distance of another WDS
AP/Router
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 can select Wireless 2.4G or Wireless 5G to change the Operation mode
for each band, in the webpage you will see the “Wireless Mode” pull down menu which
displays the current operation mode.
19
AirLive AC.TOP User’s Manual
4. Wireless Settings
To change wireless mode, please select the new wireless mode from the pull-down menu
and click “apply” button. The AC.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:
4.2.1 Wireless Mode
Wireless -> Wireless
There are 2 wireless modes such as AP, and WDS Repeater for you can work in different
application environments
AirLive AC.TOP User’s Manual
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4. Wireless Settings
4.2.2 Band
Wireless -> Band
AC.TOP has 4 different options in 2.4G band and 3 for 5G band 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 (B+G): The radio will auto adjust between 11g and 11b 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 for 2.4G Band.
• 5 GHz (A): The radio will only connect at 11a mode.
• 5 GHz (A+N): The radio will auto adjust between 11a and 11n mode.
• 5GHz (AC+N+A): The radio will auto adjust between 11ac, 11n and 11a mode. It is
recommended to use this mode for 5G Band.
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AirLive AC.TOP User’s Manual
4. Wireless Settings
4.2.3 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”.
4.2.4 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.
4.2.5 Multiple SSID
Wireless -> Multiple SSID
Multiple SSID allows AC.TOP to create up to 16 different wireless networks (SSID) each
band. It is also known as “Virtual AP” function. Each SSID can have its Encryption policy
and VLAN ID. The SSID1 is the main SSID under Wireless Setting page.
AirLive AC.TOP User’s Manual
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4. Wireless Settings
4.2.6 Auto Channel
When Auto Channel is enable, AC.TOP will automatically select and change wifi channel.
In 2.4G radio, AC.TOP will change the channel between 1~11. In 5G radio, user can select
the channel Band according to the regulation and AC.TOP will select the channel in the
selected band.
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 dependent
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.
In 802.11 ac/a/n standard, there are four channel can be used in Europ, which are channel
36,40,44,48. Please make sure the client can receive those channel.
Each wireless channel takes between 20 to 40 MHz of frequency width in 2.4G and 20 to 80
MHz in 5G. But the channels are only 5MHz apart in 2.4G. Therefore, only every 5 channels
can be free of interference with each other for 2.4G band. 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
2412
2417
2422
2427
2432
2437
2442
2447
2452
10
2457
11
2462
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AirLive AC.TOP User’s Manual
4. Wireless Settings
12
2467
13
2472
14
2484
36
5180
40
5200
44
5220
48
5240
149
5745
153
5765
157
5785
161
5805
165
5825
---------------------------------------------------------------------------------------------------------------------------------------------Note: 1. For product available in the USA/Canada market, only channel 1~11 can be operated. Selection of
other channels is not possible. 2. This device is restricted to indoor use
------------------------------------------------------------------------------------------------------------------------------------------------
4.2.8 Channel Width
Wireless -> Channel Width
You can choose 20MHz or 20/40MHz channel width in Wireless 2.4G and 20MHz, 40MJz
and Auto (80/40/20 MHz) . Choose 20MHz for compliance with laws in some countries.
40MHz offers faster performance than 20MHz, 80MHz in 5G in order to have 802.11 ac
performance.
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 32
in each radio. Total users are 64.
AirLive AC.TOP User’s Manual
24
4. Wireless Settings
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 AC.TOP features various security policies including WEP, 802.1x, WPA,
WPA Personal, WPA2, WPA2 Personal and WPA Radius.
WEP
WEP Encryption is the oldest and most available encryption method. However, it is also
the least secure.
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AirLive AC.TOP User’s Manual
4. Wireless Settings

Key Length: The AC.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.
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26
4. Wireless Settings

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.
802.1x/EAP
AC.TOP also supports the 802.1x/EAP as security
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AirLive AC.TOP User’s Manual
4. Wireless Settings

Key Length: Select 64-bit or 128-bit. 128-bit is more secure than 64-bit and is
recommended.
4.2.11 WMM
Wireless -> Multi SSID ->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.
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 RF Power
Wireless -> RF Power
You can adjust the transmit output power of the AC.TOP’s radio. The higher the output
power, the more distance AC.TOP can deliver. However, it is advised that you use just
enough output power so it will not create excessive interference for the environment. Also,
using too much power at close distance can create serious performance drop due to signal
distortion.
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28
4. Wireless Settings
4.3 Advance Settings

Fragmentation: When the size of a unicast frame exceeds the fragmentation
threshold, it will be fragmented before the transmission. It should have a value of
256-2346 bytes, with a default of 2346. If you experience a high packet error rate,
you should slightly decrease the Fragmentation Threshold.

RTS Threshold: RTS/CTS frames are used to gain control of the medium for
transmission. Any unicast (data or control) frames larger than specified RTS threshold
must be transmitted following the RTS/CTS handshake exchange mechanism. The
RTS threshold should have a value between 256-2347 bytes, with a default of 2347. It
is recommended that this value does not deviate from the default too much.

Beacon Interval: The device broadcasts beacon frames regularly to announce its
existence. The beacon Interval specifies how often beacon frames are transmitted in
time unit of milliseconds. The default value is 100, and a valid value should be between
1 and 65,535.
Preamble Type: A preamble is a signal used in wireless environment to synchronize
the transmitting timing including Synchronization and Start frame delimiter. In a "noisy"
network environment, the Preamble Type should be set to Long Preamble. The Short
Preamble is intended for applications where minimum overhead and maximum
performance is desired. If in a "noisy" network environment, the performance will be
decreased.

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AirLive AC.TOP User’s Manual
4. Wireless Settings

IAPP: IAPP (Inter Access Point Protocol) is designed for the enforcement of unique
association throughout a ESS (Extended Service Set) and a secure exchange of
station’s security context between current access point (AP) and new AP during
handoff period.

Protection: Select Enabled or Disabled to execute the security function.

Aggregation: Select Enabled or Disabled to execute this function.

Short GI: Select Enabled or Disabled to execute this function.

ACK Timeout: Acknowledgement Timeout Windows. When a packet is sent out from
one wireless station to the other, it will waits for an Acknowledgement frame from the
remote station. The station will only wait for a certain amount of time, this time is called
the ACK timeout. If the ACK is NOT received within that timeout period then the packet
will be re-transmitted resulting in reduced throughput.
If the ACK setting is too high then throughput will be lost due to waiting for the ACk
Window to timeout on lost packets. If the ACK setting is too low then the ACK window
will have expired and the returning packet will be dropped, greatly lowering throughput.
By having the ability to adjust the ACK setting we can effectively optimize the
throughput over long distance links. This is especially true for 802.11a and 802.11g
networks.
Setting the correct ACK timeout value need to consider 3 factors: distance, AP
response time, and interference. The AC.TOP provides ACK adjustment capability in
form of either distance or direct input. When you enter the distance parameter, the
AC.TOP will automatically calculate the correct ACK timeout value, it should have a
value of 0-255 sec.
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4. Wireless Settings
4.4 Access Control
Wireless -> Access Control
The AC.TOP allows you to define a list of MAC addresses that are allowed or denied to
access the wireless network. This function is available only for Access Point and AP Router
modes. This function is available only for Access Point and Gateway modes.

Disable: When selected, no MAC address filtering will be performed.

Allow list: When selected, data traffic from only the specified devices in the table
will be allowed in the network.

Reject list: When selected, data traffic from the devices specified in the table will
be denied/discarded by the network.
4.5 Site Survey
Wireless -> Site Survey
You can scan for wireless networks around your location using the Site Survey function.
From the site survey function, you can also perform antenna alignment and establish
wireless connection
When you click on Site Survey, the following screen will appear. It might take a while
depending on number of available APs in the area.
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4. Wireless Settings

SSID: This is the remote AP’s SSID.

MAC: This is the remote’s AP’s MAC address.

Channel: The current scanned channel

Type: The wireless type of remote AP.

Encryption: The wireless encryption of remote AP.

Signal: This is signal strength number in percentage in 0 to 100 scales. The
higher the number, the better signal.
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4. Wireless Settings
4.6 WPS
Wireless Settings -> WPS

Disable WPS: Check the box to disable the WPS function, default setting is
enabled.

WPS Status: Here shows the current status of the WPS function. Default setting is
configured; click Reset to UnConfigured to re-configure the WPS connection.

Self-PIN Number: Here shows the 8-digit numbers PIN code of the router itself.
Enter the Self-PIN Number to client (Registrar) end and click the PIN button at the
client end to make a WPS connection. It will connect with the wireless router within
two minutes and get IP address.

Push Button Configuration: Click Start PBC button (or press the physical WPS
button on the Wireless Router once), meanwhile, the client should also click the PBC
button simultaneously within 2 minutes.

Client PIN Number: Enter the client (Enrollee) PIN code into the blank field then
click the Start PIN button to make a WPS connection with client. Then, the wireless
router will connect to client within 2 minutes and get IP address
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AirLive AC.TOP User’s Manual
4. Wireless Settings
4.7 Wireless Scheduling
Wireless -> Wireless Scheduling
Check the box to enable the schedule function. Set up the time to schedule the wireless
access rule. Select the day and time you want to enable the wireless function.
4.8 RADIUS
Wireless -> RADIUS
The RADIUS menu allows you to configure the access point’s RADIUS server settings,
categorized into three submenus: RADIUS settings, Internal Server and RADIUS accounts.
A RADIUS server provides user-based authentication to improve security and offer wireless
client control – users can be authenticated before gaining access to a network.
The access point can utilize both a primary and secondary (backup) RADIUS server for
each of its wireless frequencies (2.4GHz & 5GHz). External RADIUS servers can be used
or the access point’s internal RADIUS server can be used.
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4. Wireless Settings
4.8.1 RADIUS Settings
Configure the RADIUS server settings for 2.4GHz & 5GHz. Each frequency can use an
internal or external RADIUS server.

RADIUS Type: Select “Internal” to use the access point’s built-in RADIUS server or
“external” to use an external RADIUS server.

RADIUS Server: Enter the RADIUS server host IP address.

Authentication Port: Set the UDP port used in the authentication protocol of the
RADIUS server. Value must be between 1 – 65535
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4. Wireless Settings

Shared Secret: Enter a shared secret/password between 1 – 99 characters in
length. This should match the “MAC-RADIUS” password used in IV-3-1-3-6 or
IV-3-2-3.

Session Timeout: Set a duration of session timeout in seconds between 0 – 86400.

Accounting: Enable or disable RADIUS accounting.

Accounting Port: When accounting is enabled (above), set the UDP port used in
the accounting protocol of the RADIUS server. Value must be between 1 – 65535.
4.8.2 Internal Server
AC.TOP also features a built-in RADIUS server which can be configured as shown below
used when “Internal” is selected for “RADIUS Type” in the “Wireless”  “RADIUS” 
“Internal Server”

Internal Server: Check/uncheck to enable/disable the access point’s internal
RADIUS server.

EAP Internal Authentication : Select EAP internal authentication type from the
drop down menu

EAP Certificate File Format : Displays the EAP certificate file format:
PCK#12(*.pfx/*.p12)
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36
4. Wireless Settings

EAP Certificate File: Click “Upload” to open a new window and select the location
of an EAP certificate file to use. If no certificate file is uploaded, the internal RADIUS
server will use a self-made certificate.

Shared Secret: Enter a shared secret/password for use between the internal
RADIUS server and RADIUS client. The shared secret should be 1 – 99 characters
in length. This should match the “MAC-RADIUS” password used in IV-3-1-3-6 or
IV-3-2-3.

Session Timeout: Set a duration of session timeout in seconds between 0 – 86400.

Termination Action: Select a termination-action attribute: “Reauthentication” sends
a RADIUS request to the access point, “Not-Reathentication” sends a default
termination-action attribute to the access point, “Not-Send” no termination-action
attribute is sent to the access point.
4.8.3 RADIUS Accounts
The internal RADIUS server can authenticate up to 256 user accounts. The “RADIUS
Accounts” page allows you to configure and manage users.
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AirLive AC.TOP User’s Manual
4. Wireless Settings

User Name: Enter the user names here, separated by commas.

Add : Click “Add” to add the user to the user registration list

Reset: Clear text from the user name box.

Select: Check the box to select a user.

User Name: Displays the user name.

Password: Displays if specified user name has a password (configured) or not (not
configured).
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38
4. Wireless Settings

Customize: Click “Edit” to open a new field to set/edit a password for the specified
user name (below).

Delete Selected: Delete selected user from the user registration list.

Delete All : Delete all users from the user registration list.
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AirLive AC.TOP User’s Manual
5. System Configurations
5. System
Configurations
In this chapter, we will explain about System Configurations in web management interface.
Please be sure to read through Chapter 3’s “Introduction to Web Management” and
“Initial Configurations” first. .
5.1 Menu Structure
When you click on the “System” menu on the top menu bar, the following screen will
appear. The system configuration includes all non-wireless settings. We will explain their
functions here.
5.2 LAN Interface Setup
System >> LAN Interface Setup
This menu is where you can configuration all the aspect about LAN interface including IP
address, DHCP server settings etc.
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40
5. System Configurations
Device IP
Settings
DHCP
Settings
5.2.1 DHCP Settings

DHCP Service: You can enable or disable DHCP server here.
 Disable(default): Disable DHCP server
 Enable: The AC.TOP will act as DHCP server to provide IP addresses to
the clients on the LAN/Wireless interface. By default, the DHCP server is
on.

DHCP Client Range: You can define the IP pool from which the DHCP clients can
get IP address. Click on “Show Client” to see the current DHCP client table.

DHCP Release Time: You can define how long the AC.TOP will reserve IP
address for a particular PC or Device here.
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AirLive AC.TOP User’s Manual
5. System Configurations
5.2.2 Set Static DHCP
If you want to lock IP address to a MAC address, you should add DHCP clients to the
“Static DHCP List”. Up to 40 entries can be entered. Below is the procedure for adding an
entry:
1. Enter the MAC address of the device
2. Enter the IP address of the device
3. Click on the “Apply Changes” button
5.2.3 Domain Name
You can enter the network area name here.
5.2.4 802.11d Spanning Tree
Select Disabled or Enabled form the pull-down list.
5.2.5 Clone MAC Address
You can change the MAC address of your LAN port to other value here.
5.2.6 Enable AirLive IP Finder Management
By enabling the function, IP Finder could discover the AC.TOP in the LAN.
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42
5. System Configurations
5.3 Time Settings
System ->Time Settings
You can set the NTP Time Server for your AC.TOP’s internal clock here. You can use NTP
server function so your AC.TOP will check with NTP to set time automatically upon each
startup. Thus, it prevents the clock losing track of time during reboot or power outage.
Below is the procedure to set your NTP server
1. Check the “Enable NTP Client Update”
2. Select your time Zone
3. Select your NTP server
4. Click on “Apply Change”
5.4 Password Settings
System -> Password Settings
The AC.TOP’s password protection is turned off by default. To enable password
protection or change password, just enter your username and password, and click on
“Apply Change” button.
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5. System Configurations
5.5 Management
System ->Management
The Management page allow users to enable or disable the manage methods which they
want to uses.



HTTP: means AC.TOP can be access via http port
Watch Host: means AC.TOP can be access via https port.
SNMP: AC.TOP can be management via SNMP v1/v2c
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5. System Configurations





SNMP Get Community: set the Get community (password)
SNMP Set Community: set the Set Community (password)
SNMP Trap: to Enable SNMP trap
SNMP Trap Community: to set the trap community (password)
SNMP Trap Manager: to set the IP address which SNMP trap server locate.
5.6 Firmware Upgrade
System -> Firmware Upgrade
You can upgrade the firmware of your AC.TOP (the software that controls your AC.TOP’s
operation). Normally, this is done when a new version of firmware offers new features that
you want, or solves problems that you have encountered with the current version.

Upgrade Firmware:
To update the AC.TOP firmware, first download the firmware from AirLive web site to
your local disk. Then from the above screen enter the path and filename of the
firmware file (or click Browse to locate the firmware file). Next, Click the Upgrade
button to start.
The new firmware will be loaded to your AC.TOP. After a message appears telling you
that the operation is completed, you need to reset the system to have the new firmware
take effect.
Do not power off the device while upgrading the firmware.
It is recommended that you do not upgrade your AC.TOP unless the new
firmware has new features you need or if it has a fix to a problem that
you’ve encountered.
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AirLive AC.TOP User’s Manual
5. System Configurations
5.7 Configuration Save and Restore
System -> Configuration Save and Restore
The AC.TOP can save and restore the settings to a file. In addition, it has the unique
capability to restore only the network or wireless settings. This makes changes of wireless
settings across the entire network of AP much easier.
You can save system configuration settings to a file, and later download it back to the
AC.TOP by following the steps.
Step 1
Select Configuration Save and Restore from the System menu.
Step 2
Click on “Save Setting to File” and enter the path of the configuration file to
save-to.
Restore Setting:
Step1:
Enter the file name in the “Load Settings from File” field. Or click on “Browse”
button to location the location of the file.
Step2:
Click on “Upload” button to restore settings.
5.8 Factory Default
System Configuration -> Factory Default
You can reset the configuration of your AC.TOP to the factory default settings.
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46
6. Status Menu
6. Status
Menu
In this chapter, we will explain the “Status” menu in the web management interface.
Before you read this chapter, please make sure to read through chapter 3 on “Introduction
to Web Management Interface.
6.1 Menu Structure
When you click on the “Status” on the top menu bar, the sub menu for device status will
appear.
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AirLive AC.TOP User’s Manual
6. Status Menu
6.2 Device Information
This page shows the general information about AC.TOP such as Uptime, Firmware version,
Wireless Interface…etc. Below are some additional explanations on some status
information of this page:




Uptime: This displays the time since system last boot up. This is a good indication
for how long the system has been alive.
Hardware Version: It displays the hardware version.
Runtime Code Version: This place will display the current firmware version.
Wireless: This page displays the current settings and status of the radio. It includes
the BSSID and connection status. The BSSID is also the wireless MAC address that is
needed for the WDS entry.
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6. Status Menu

LAN Configuration: This page displays the status of the LAN port such as MAC
address, DHCP status.
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AirLive AC.TOP User’s Manual
6. Status Menu
6.3 Statistic
This page shows the sent and received packet information for Radio1, Radio2, LAN, and
WAN interface.
6.4 Log
The log function is where you can check for error messages for diagnostic purpose.





Enable Log: Check this box to enable log function.
System All: Activates all logging functions
Wireless: Only logs related to the wireless LAN will be recorded
Enable Remote Log: Only logs related to the Remote control will be recorded.
Log Server IP Address: Only logs related to the server will be recorded.
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6. Status Menu
51
AirLive AC.TOP User’s Manual
7. Frequent Asked Questions
7. Frequent
Asked
Questions
In this chapter, we will address some frequent asked questions about AC.TOP
Q: I forgot my password or the IP address of AC.TOP.
A:
Please restore your settings to default by press the reset button for more than 5 seconds.
You should be able to find your AC.TOP at 192.168.1.254 with default username “admin”
and password “airlive”.
Q: AC.TOP is not responding to me when I want to access it by web browser
A:
a. Please check the connection of power cord and network cable of this access point. All
cords and cables should be correctly and firmly inserted to AC.TOP.
b. If LEDs on this access point are out, please check the status of A/C power adapter, and
make sure it’s correctly powered.
c. You must use the same IP address section which AC.TOP uses.
d. Are you using MAC or IP address filter?
Try to connect the access point by another computer and see if it works; if not, please
perform a hard reset (pressing ‘reset’ button).
e. Set your computer to obtain an IP address automatically (DHCP), and see if your
computer can get an IP address.
f. If you did a firmware upgrade and this happens, contact your dealer of purchase for help.
g. If all above solutions don’t work, contact the dealer of purchase for help.
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52
7. Frequent Asked Questions
Q: Can’t get connected to AC.TOP.
A:
a. If encryption is enabled, please re-check WEP or WPA passphrase settings on your
wireless client.
b. Try to move closer to AC.TOP.
c. Unplug the power plug of AC.TOP and plug it back again after 10 seconds.
d. If all LEDs on this AC.TOP are out, please check the status of A/C power adapter, and
make sure it’s correctly powered.
Q: I can’t locate my access point by my wireless client
A:
a. ‘Broadcast ESSID’ set to off?
b. Is Antenna properly installed and secured?
c. Are you too far from your AC.TOP? Try to get closer.
d. Please remember that you have to input ESSID on your wireless client manually, if ESSID
broadcast is disabled.
Q: File download is very slow or breaks frequently
A:
a. Try to reset the AC.TOP and see if it’s better after that.
b. Try to know what computers do on your local network. If someone’s transferring big files,
other people will think Internet is really slow.
c. Change channel number and see if this works.
Q: I can’t log onto web management interface: password is wrong
A:
a. Make sure you’re connecting to the correct IP address of the AC.TOP!
b. Password is case-sensitive. Make sure the ‘Caps Lock’ light is not illuminated.
c. If you really forget the password, do a hard reset.
Q: AC.TOP become hot
A:
a. This is not a malfunction, if you can keep your hand on the AC.TOP’s case.
b. If you smell something wrong or see the smoke coming out from access point or A/C
power adapter, please disconnect the access point and A/C power adapter from utility
power (make sure it’s safe before you’re doing this!), and call your dealer of purchase for
help.
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AirLive AC.TOP User’s Manual
8. Specifications
8. Specifications
The specification of AC.TOP is subject to change without notice. Please use the
information with caution.
8.1 Hardware Features
8.1.1 General Hardware Feature






1 x 10/100/1000 Mbps Ethernet Port with Auto MDI/MDI-X Support
802.3af PoE Port (LAN) LAN, PWR, LED Indicators
2.4G and 5G dual band con-current
1200Mbps 2T2R 11 ac+b/g/n Radio
Up to 23dBm Output Power (20dBm in EU, 23dBm in the U.S.)
4MB Flash, 32MB SDRAM
8.1.2 Antenna
PiFa Antenna x 4 (2T2R MIMO Technology)
8.1.3 Power Supply

12VDC, 1.5A Switching Power Adapter
8.1.4 Dimension and Weight


Product Weight: 306 g
Product Size (D x H): 176(D) x 30(H)mm
8.1.5 Certification

FCC, CE
8.2 Radio Specifications
8.2.1 Frequency Band



2.4000~2.4835GHz (Industrial Scientific Medical Band)
5180 ~5240GHz (Band1) for ETSI
5745 ~ 5825 for FCC
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8. Specifications
8.2.2 Output Power and Sensitivity

Output Power (excluding the antenna gain)
2.4GHz:
- 11b(11M): 20±1.5 dBm
- 11g(54M): 19±1.5 dBm
- 11n(20MHz, MCS7): 14±1.5 dBm
- 11n(40MHz, MCS7): 13±1.5 dBm
5GHz:
- 11a(54M): 19.5±1.5 dBm
- 11n(20MHz, MCS7): 16.5±1.5 dBm
- 11n(40MHz, MCS7): 17±1.5 dBm
- 11ac(80MHz, VHTMCS9): 12±1.5 dBm

Receive Sensitivity
2.4GHz:
- 11b(11M): -90±2dBm
- 11g(54M): -75±2dBm
- 11n(20MHz, MCS7):-70±2dBm
- 11n(40MHz, MCS7):-70±2dBm
- 5GHz:
- 11a(54M): -72±2dBm
- 11n(20MHz, MCS7): -68±2dBm
- 11n(40MHz, MCS7): -68±2dBm
- 11ac(80MHz, VHTMCS9): -58±2dBm
Note: The real output is dependent on the regulation
8.2.3 TX Output Power


ETSI (Europe) - About 20dBm max
FCC (The United States) - About 23dBm max
8.2.4 Supported WLAN Mode






2.4 GHz (B + G + N)
2.4 GHz (B)
2.4 GHz (B + G)
5G (A)
5G (A+N)
5G (AC+A+N)
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AirLive AC.TOP User’s Manual
8. Specifications
8.2.5 Supported WLAN Encryption




64/128-bit WEP
WPA/WPA2-PSK support
WPA/WPA2-EAP support
802.1x Radius Support
8.3 Software Feature
8.3.1 Operation Mode


Access Point Mode (AP mode)
WDS repeater
8.3.2 Management Interface



Web HTTP
IP Finder
AirLive Central Wireless
8.3.3 Advance Functions








Setup Wizard
Multiple SSID, Virtual AP, Watchdog, Hidden SSID
ACK Timeout Adjustment
WMM, MAC Access Control, Wireless Client Isolation, Channel, RTS Threshold
Green AP Energy Saving Feature TX Output Power Adjustment
Wireless Security: WEP- 64/128bit, WPA, WPA2 and IEEE 802.1x
Restore to Factory Default
Configuration Backup and Restore
8.4 Environment
8.4.1 Environment




Operating temperature: 0~40 Degree C
Operating humidity (non-condensing): 10~90%
Storage temperature: -20~60 Degree C
Storage humidity: 95% Max
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9. Wireless Network Glossary
9. Wireless
Network
Glossary
The wireless network glossary contains explanation or information about common terms
used in wireless networking products. Some of information in this glossary might be
outdated, please use with caution.
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.
802.11b
International standard for wireless networking that operates in the 2.4 GHz frequency band
(2.4 GHz to 2.4835 GHz) and provides a throughput up to 11 Mbps.
802.1d STP
Spanning Tree Protocol. It is an algorithm to prevent network from forming. The STP
protocol allows network to provide a redundant link in the event of a link failure. It is
advice to turn on this option for multi-link bridge network.
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.
802.11g
A standard provides a throughput up to 54 Mbps using OFDM technology. It also
operates in the 2.4 GHz frequency band as 802.11b. 802.11g devices are backward
compatible with 802.11b devices.
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9. Wireless Network Glossary
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.
802.1x
802.1x is a security standard for wired and wireless LANs. In the 802.1x parlance, there are
usually supplicants (client), authenticator (switch or AP), and authentication server (radius
server) in the network. When a supplicants request a service, the authenticator will pass
the request and wait for the authentication server to grant access and register accounting.
The 802.1x is the most widely used method of authentication by WISP.
Adhoc
A Peer-to-Peer wireless network. An Adhoc wireless network does not use wireless AP or
router as the central hub of the network. Instead, wireless client are connected directly to
each other. The disadvantage of Adhoc network is the lack of wired interface to Internet
connections. It is not recommended for network more than 2 nodes.
Access Point (AP)
The central hub of a wireless LAN network. Access Points have one or more Ethernet
ports that can connect devices (such as Internet connection) for sharing. Multi-function
Access Point can also function as an Ethernet client, wireless bridge, or repeat signals from
other AP. Access Points typically have more wireless functions comparing to wireless
routers.
ACK Timeout
Acknowledgement Timeout Windows. When a packet is sent out from one wireless station
to the other, it will waits for an Acknowledgement frame from the remote station. The
station will only wait for a certain amount of time, this time is called the ACK timeout. If the
ACK is NOT received within that timeout period then the packet will be re-transmitted
resulting in reduced throughput. If the ACK setting is too high then throughput will be lost
due to waiting for the Ack Window to timeout on lost packets. If the ACK setting is too low
then the ACK window will have expired and the returning packet will be dropped, greatly
lowering throughput. By having the ability to adjust the ACK setting we can effectively
optimize the throughput over long distance links. This is especially true for 802.11a and
802.11g networks. Setting the correct ACK timeout value need to consider 3 factors:
distance, AP response time, and interference. The AC.TOP provides ACK adjustment
capability in form of either distance or direct input. When you enter the distance
parameter, the AC.TOP will automatically calculate the correct ACK timeout value.
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9. Wireless Network Glossary
Bandwidth Management (Bandwidth Control)
Bandwidth Management controls the transmission speed of a port, user, IP address, and
application. Router can use bandwidth control to limit the Internet connection speed of
individual IP or Application. It can also guarantee the speed of certain special application
or privileged IP address - a crucial feature of QoS (Quality of Service) function.
Bootloader
Bootloader is the under layering program that will start at the power-up before the device
loads firmware. It is similar to BIOS on a personal computer. When a firmware crashed,
you might be able to recover your device from bootloader.
Bridge
A product that connects 2 different networks that uses the same protocol. Wireless
bridges are commonly used to link network across remote buildings. For wireless
application, there are 2 types of Bridges. WDS Bridge can be used in Point-to-Point or
Point-to-Multipoint topology. Bridge Infrastructure works with AP mode to form a star
topology.
Cable and Connector Loss: During wireless design and deployment, it is important to
factor in the cable and connector loss. Cable and connector loss will reduce the output
power and receiver sensitivity of the radio at connector end. The longer the cable length is,
the more the cable loss. Cable loss should be subtracted from the total output power
during distance calculation. For example, if the cable and connector loss is 3dBm and the
output power is 20dBm; the output power at the cable end is only 17dBm.
Client
Client means a network device or utility that receives service from host or server.
device means end user device such as wireless cards or wireless CPE.
A client
CPE Devices
CPE stands for Customer Premises Equipment. A CPE is a device installed on the end
user's side to receive network services. For example, on an ADSL network, the ADSL
modem/router on the subscriber's home is the CPE device. Wireless CPE means a
complete Wireless (usually an AP with built-in Antenna) that receives wireless broadband
access from the WISP. The opposite of CPE is CO.
CTS
Clear To Send. A signal sent by a device to indicate that it is ready to receive data.
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9. Wireless Network Glossary
DDNS
Dynamic Domain Name System. An algorithm that allows the use of dynamic IP address
for hosting Internet Server. A DDNS service provides each user account with a domain
name. A router with DDNS capability has a built-in DDNS client that updates the IP
address information to DDNS service provider whenever there is a change. Therefore,
users can build website or other Internet servers even if they don't have fixed IP
connection.
DHCP
Dynamic Hosting Configuration Protocol. A protocol that enables a server to dynamically
assign IP addresses. When DHCP is used, whenever a computer logs onto the network, it
automatically gets an IP address assigned to it by DHCP server. A DHCP server can
either be a designated PC on the network or another network device, such as a router.
DMZ
Demilitarized Zone. When a router opens a DMZ port to an internal network device, it opens
all the TCP/UDP service ports to this particular device. The feature is used commonly for
setting up H.323 VoIP or Multi-Media servers.
DNS
A program that translates URLs to IP addresses by accessing a database maintained on a
collection of Internet servers.
Domain Name
The unique name that identifies an Internet site. Domain Names always have 2 or more
parts, separated by dots. In www.airlive.com, the "airlive.com" is the domain name.
DoS Attack
Denial of Service. A type of network attack that floods the network with useless traffic.
Many DoS attacks, such as the Ping of Death and Teardrop attacks, exploit limitations in
the TCP/IP protocols.
Encryption
Encoding data to prevent it from being read by unauthorized people.
wireless encryption schemes are WEP, WPA, and WPA2.
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The common
9. Wireless Network Glossary
ESSID (SSID)
The identification name of an 802.11 wireless network. Since wireless network has no
physical boundary liked wired Ethernet network, wireless LAN needs an identifier to
distinguish one network from the other. Wireless clients must know the SSID in order to
associate with a WLAN network. Hide SSID feature disable SSID broadcast,
so users must know the correct SSID in order to join a wireless network.
Firewall
A system that secures a network and prevents access by unauthorized users. Firewalls can
be software, router, or gateway. Firewalls can prevent unrestricted access into a network,
as well as restricting data from flowing out of a network.
Firmware
The program that runs inside embedded device such as router or AP. Many network
devices are firmware upgradeable through web interface or utility program.
FTP
File Transfer Protocol. A standard protocol for sending files between computers over a
TCP/IP network and the Internet.
Fragment Threshold
Frame Size larger than this will be divided into smaller fragment. If there are interferences
in your area, lower this value can improve the performance. If there are not, keep this
parameter at higher value. The default size is 2346. You can try 1500, 1000, or 500
when there are interference around your network.
Gateway
In the global Internet network, the gateways are core routers that connect networks in
different IP subnet together. In a LAN environment with an IP sharing router, the gateway
is the router. In an office environment, gateway typically is a multi-function device that
integrates NAT, firewall, bandwidth management, and other security functions.
Hotspot
A place where you can access Wi-Fi service. The term hotspot has two meanings in
wireless deployment. One is the wireless infrastructure deployment, the other is the
Internet access billing system.
In a hotspot system, a service provider typically need an
authentication and account system for billing purposes, and a wireless AP network to
provide access for customers.
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9. Wireless Network Glossary
IGMP Snooping
Internet Group Management Protocol (IGMP) is a Layer 3 protocol to report IP multicast
memberships to neighboring multicast switches and routers. IGMP snooping is a feature
that allows an Ethernet switch to "listen in" on the IGMP conversation between hosts and
routers. A switch support IGMP snooping has the possibility to avoid multicast traffic being
treated as broadcast traffic; therefore, reducing the overall traffic on the network.
Infrastructure Mode
A wireless network that is built around one or more access points to provide wireless clients
access to wired LAN / Internet service. The opposite of Infrastructure mode is Adhoc
mode.
IP address
IP (Internet Protocol) is a layer-3 network protocol that is the basis of all Internet
communication. An IP address is 32-bit number that identifies each sender or receiver of
information that is sent across the Internet. An IP address has two parts: an identifier of a
particular network on the Internet and an identifier of the particular device (which can be a
server or a workstation) within that network. The new IPv6 specification supports 128-bit
IP address format.
IPsec
IP Security. A set of protocols developed by the IETF to support secure exchange of
packets at the IP layer. IPsec has been deployed widely to implement Virtual Private
Networks (VPNs). IPsec supports two encryption modes: Transport and Tunnel.
Transport mode encrypts only the data of each packet, but leaves the header untouched.
The more secure Tunnel mode encrypts both the header and the payload. On the receiving
side, an IPSec-compliant device decrypts each packet.
LACP (802.3ad) Trunking
The 802.3ad Link Aggregation standard defines how to combine the several Ethernet ports
into one high-bandwidth port to increase the transmission speed. It is also known as port
trunking. Both devices must set the trunking feature to work.
MAC
Media Access Control. MAC address provides layer-2 identification for Networking Devices.
Each Ethernet device has its own unique address. The first 6 digits are unique for each
manufacturer. When a network device have MAC access control feature, only the devices
with the approved MAC address can connect with the network.
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9. Wireless Network Glossary
Mbps
Megabits Per Second. One million bits per second; a unit of measurement for data
transmission
MESH
Mesh is an outdoor wireless technology that uses Spanning Tree Protocol (STP) and
Wireless Distribution system to achieve self-forming, self-healing, and self-configuring
outdoor network. MESH network are able to take the shortest path to a destination that
does not have to be in the line of site.
MIMO
Multi In Multi Out. A Smart Antenna technology designed to increase the coverage and
performance of a WLAN network. In a MIMO device, 2 or more antennas are used to
increase the receiver sensitivity and to focus available power at intended Rx.
NAT
Network Address Translation. A network algorithm used by Routers to enables several
PCs to share single IP address provided by the ISP. The IP that a router gets from the
ISP side is called Real IP; the IP assigned to PC under the NAT environment is called
Private IP.
Node
A network connection end point, typically a computer.
Packet
A unit of data sent over a network.
Passphrase
Used much like a password, a passphrase simplifies the WEP encryption process by
automatically generating the WEP encryption keys for the company products.
POE
Power over Ethernet. A standard to deliver both power and data through one single
Ethernet cable (UTP/STP). It allows network device to be installed far away from power
source. A POE system typically composes of 2 main component: DC Injector (Base Unit)
and Splitter (Terminal Unit). The DC injector combines the power and data, and the splitter
separates the data and power back. A PoE Access Point or CPE has the splitter built-in to
the device. The IEEE 802.3af is a POE spec that uses 48 volt to deliver power up to 100
meter distance.
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9. Wireless Network Glossary
Port
This word has 2 different meaning for networking.
 The hardware connection point on a computer or networking device used for plugging
in a cable or an adapter.
 The virtual connection point through which a computer uses a specific application on a
server.
PPPoE
Point-to- Point Protocol over Ethernet. PPPoE relies on two widely accepted standards:
PPP and Ethernet. PPPoE is a specification for connecting the users on an Ethernet to the
Internet through a common broadband medium, such as a single DSL line, wireless device
or cable modem.
PPTP
Point-to-Point Tunneling Protocol: A VPN protocol developed by PPTP Forum. With
PPTP, users can dial in to their corporate network via the Internet. If users require data
encryption when using the Windows PPTP client, the remote VPN server must support
MPPE (Microsoft Point-To-Point Encryption Protocol) encryption. PPTP is also used by
some ISP for user authentication, particularly when pairing with legacy Alcatel / Thomson
ADSL modem.
Preamble Type
Preamble are sent with each wireless packet transmit for transmission status. Use the
long preamble type for better compatibility. Use the short preamble type for better
performance
Rate Control
Ethernet switches' function to control the upstream and downstream speed of an individual
port. Rate Control management uses "Flow Control" to limit the speed of a port.
Therefore, the Ethernet adapter must also have the flow control enabled. One way to
force the adapter's flow control on is to set a port to half-duplex mode.
RADIUS
Remote Authentication Dial-In User Service. An authentication and accounting system
used by many Internet Service Providers (ISPs). When you dial in to the ISP, you must
enter your username and password. This information is passed to a RADIUS server, which
checks that the information is correct, and then authorizes access to the ISP system.
Radius typically uses port 1812 and port 1813 for authentication and accounting port.
Though not an official standard, the RADIUS specification is maintained by a working group
of the IETF.
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9. Wireless Network Glossary
Receiver Sensitivity
Receiver sensitivity means how sensitive is the radio for receiving signal. In general; the
slower the transmission speed, the more sensitive the radio is. The unit for Receiver
Sensitivity is in dB; the lower the absolute value is, the higher the signal strength. For
example, -50dB is higher than -80dB.
RJ-45
Standard connectors for Twisted Pair copper cable used in Ethernet networks. Although
they look similar to standard RJ-11 telephone connectors, RJ-45 connectors can have up to
eight wires, whereas telephone connectors have only four.
Router
An IP sharing router is a device that allows multiple PCs to share one single broadband
connection using NAT technology. A wireless router is a device that combines the
functions of wireless Access Point and the IP sharing router.
SIGNAL STRENGTH
Receiver Sensitivity Index. SIGNAL STRENGTH is a value to show the Receiver
Sensitivity of the remote wireless device. In general, remote APs with stronger signal will
display higher SIGNAL STRENGTH values. For SIGNAL STRENGTH value, the smaller
the absolute value is, the stronger the signal. For example, “-50db” has stronger signal
than “-80dB”.
For outdoor connection, signal stronger than -60dB is considered as a
good connection.
RTS
Request To Send. A packet sent when a computer has data to transmit. The computer will
wait for a CTS (Clear To Send) message before sending data.
RTS Threshold
RTS (Request to Send).
The RTS/CTS(clear to send) packet will be send before a frame
if the packet frame is larger than this value. Lower this value can improve the
performance if there are many clients in your network. You can try 1500, 1000 or 500
when there are many clients in your AP’s network.
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9. Wireless Network Glossary
SNMP
Simple Network Management Protocol. A set of protocols for managing complex networks.
The SNMP network contains 3 key elements: managed devices, agents, and
network-management systems (NMSs). Managed devices are network devices that
content SNMP agents. SNMP agents are programs that reside SNMP capable device's
firmware to provide SNMP configuration service. The NMS typically is a PC based
software such as HP Openview that can view and manage SNMP network device remotely.
SSH
Developed by SSH Communications Security Ltd., Secure Shell is a program to log into
another computer over a network, to execute commands in a remote machine, and to move
files from one machine to another. It provides strong authentication and secure
communications over insecure channels. It is a replacement for rlogin, rsh, rcp, and rdist.
SSL
Secure Sockets Layer. It is a popular encryption scheme used by many online retail and
banking sites to protect the financial integrity of transactions. When an SSL session
begins, the server sends its public key to the browser. The browser then sends a randomly
generated secret key back to the server in order to have a secret key exchange for that
session. SSL VPN is also known as Web VPN. The HTTPS and SSH management
interface use SSL for data encryption.
Subnet Mask
An address code mask that determines the size of the network. An IP subnet are
determined by performing a BIT-wise AND operation between the IP address and the
subnet mask. By changing the subnet mask, you can change the scope and size of a
network.
Subnetwork or Subnet
Found in larger networks, these smaller networks are used to simplify addressing between
numerous computers. Subnets connect to the central network through a router, hub or
gateway. Each individual wireless LAN will probably use the same subnet for all the local
computers it talks to.
TCP
A layer-4 protocol used along with the IP to send data between computers over the Internet.
While IP takes care of handling the actual delivery of the data, TCP takes care of keeping
track of the packets that a message is divided into for efficient routing through
the Internet.
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9. Wireless Network Glossary
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 that does not
require acknowledgement from the recipient of the data.
Upgrade
To replace existing software or firmware with a newer version.
Upload
To send a file to the Internet or network device.
URL
Uniform Resource Locator. The address of a file located on the Internet.
VPN
Virtual Private Network. A type of technology designed to increase the security of
information transferred over the Internet. VPN creates a private encrypted tunnel from the
end user's computer, through the local wireless network, through the Internet, all the way to
the corporate network.
WAN
Wide Area Network. A communication system of connecting PCs and other computing
devices across a large local, regional, national or international geographic area. A WAN
port on the network device means the port (or wireless connection) that is connected to the
Internet side of the network topology.
WEP
Wired Equivalent Privacy. A wireless encryption protocol. WEP is available in 40-bit (64-bit),
108-bit (128-bit) or 152-bit (Atheros proprietary) encryption modes.
Wi-Fi
Wireless Fidelity. An interoperability certification for wireless local area network (LAN)
products based on the IEEE 802.11 standards. The governing body for Wi-Fi is called
Wi-Fi Alliance (also known as WECA).
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9. Wireless Network Glossary
WiMAX
Worldwide Interoperability for Microwave Access. A Wireless Metropolitan Network
technology that complies with IEEE 802.16 and ETSI Hiperman standards. The original
802.16 standard call for operating frequency of 10 to 66Ghz spectrum. The 802.16a
amendment extends the original standard into spectrum between 2 and 11 GHz. 802.16d
increase data rates to between 40 and 70 Mbps/s and add support for MIMO antennas,
QoS, and multiple polling technologies. 802.16e adds mobility features, narrower
bandwidth (a max of 5 MHz), slower speed and smaller antennas. Mobility is allowed up to
40 mph.
WDS
Wireless Distribution System. WDS defines how multiple wireless Access Point or
Wireless Router can connect together to form one single wireless network without using
wired uplinks. WDS associate each other by MAC address, each device
WLAN
Wireless Local Area Network. A type of local-area network that uses high-frequency radio
waves rather than wires to communicate between nodes. The most popular standard for
WLAN is the 802.11 standards.
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.
WMS
Wireless Management System.
AP/Bridges.
An utility program to manage multiple wireless
WPA
Wi-Fi Protected Access. It is an encryption standard proposed by WiFi for advance
protection by utilizing a password key (TKIP) or certificate. It is more secure than WEP
encryption. The WPA-PSK utilizes pre-share key for encryption/authentication.
WPA2
Wi-Fi Protected Access 2. WPA2 is also known as 802.11i. It improves on the WPA
security with CCMP and AES encryption. The WPA2 is backward compatible with WPA.
WPA2-PSK utilizes pre-share key for encryption/authentication.
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