Moxa Technologies AirWorks AWK-3131A User manual

AirWorks AWK-3131A User Manual
Version 9.2, June 2022
www.moxa.com/products
© 2022 Moxa Inc. All rights reserved.

AirWorks AWK-3131A User Manual
The sof tware described in this manual is furnished under a license agreement and may be used only in accordance
with the terms of that agreement.
Copyright Notice
© 2022 Moxa Inc. All rights reserved.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
•Information in this document is subject to change without notice and does not represent a commitment
on the part of Moxa.
•Moxa provides this document as is, without warranty of any kind, either expressed or implied, including,
but not limited to, its particular purpose. Moxa reserves the right to make improvements and/or
changes to this manual, or to the products and/or the programs described in this manual, at any time.
•Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no
responsibility f or its use, or f or any inf ringements on the rights of third parties that may result f rom its
use.
•This product might include unintentional technical or typographical errors. Changes are periodically
made to the information herein to correct such errors, and these changes are incorporated into new
editions of the publication.
Technical Support Contact Information
www.moxa.com/support

Table of Contents
1. Introduction ................................................................................................................................... 5
Overview ........................................................................................................................................ 5
Package Checklist ............................................................................................................................ 5
Product Features.............................................................................................................................. 6
Functio na l Design ............................................................................................................................. 7
LED Indicators .......................................................................................................................... 7
Beeper.................................................................................................................................... 9
Reset Button ............................................................................................................................ 9
Relay (Digital Output) ................................................................................................................ 9
2. Getting Started ............................................................................................................................. 10
First-time I nsta lla tio n and Co nf iguratio n ..............................................................................................10
Communicat ion Testing ....................................................................................................................12
Functio n Map..................................................................................................................................13
3. Web Console Conf igurat ion............................................................................................................ 16
Web Browser Configuration...............................................................................................................16
Overview .......................................................................................................................................18
Qu ick Setup ...................................................................................................................................20
General Setup ................................................................................................................................22
System Information .................................................................................................................22
Interface On/Off ......................................................................................................................23
Network Settings .....................................................................................................................23
System Time...........................................................................................................................26
Wireless LAN Setup .........................................................................................................................27
AeroMag.................................................................................................................................27
Operation Mode .......................................................................................................................32
Basic WLAN Setup....................................................................................................................33
WLAN Security Settings ............................................................................................................38
Advanced WLAN Settings ..........................................................................................................46
WLAN Certif icate Settings (f or EAP-TLS in C lient/ Clien t-router/Slave mode only) .................................51
Advanced Setup..............................................................................................................................52
Using V irtua l LAN .....................................................................................................................52
Configuring Virtual LAN .............................................................................................................54
DHCP Server (for AP/Client-router mode only) ..............................................................................54
Packet Filters ..........................................................................................................................56
RSTP Settings (Master or Slave mode only) ..................................................................................59
Static Ro ute (f or Client-router mode only) ....................................................................................60
NAT Settings/Port Forwarding (for Client-router mode only) ............................................................61
SNMP Agent ............................................................................................................................64
Link Fault Pass-thro ugh (f or Client/Slave mode only) .....................................................................65
Logs and Not if icatio ns ......................................................................................................................66
System Logs ...........................................................................................................................66
Syslog ...................................................................................................................................68
E-mail Notif icat ions ..................................................................................................................69
Relay .....................................................................................................................................70
Trap ......................................................................................................................................70
Status ...........................................................................................................................................72
Associated C lie nt List (f or AP/Master mode only) ...........................................................................73
DHCP Client List (f or AP mode only) ............................................................................................73
System Logs ...........................................................................................................................74
Relay Status ...........................................................................................................................74
DI and Power Status.................................................................................................................75
AeroLink Protection Sta tus (f or Client/S lave mode on ly) .................................................................75
System Status.........................................................................................................................76
Network Status........................................................................................................................76
Maintenance...................................................................................................................................78
Console Settings ......................................................................................................................78
Ping .......................................................................................................................................78
Firmware Upgrade....................................................................................................................79

Configuration Im port and Export.................................................................................................79
Load Factory Default ................................................................................................................80
Account Settings ......................................................................................................................80
Change Password.....................................................................................................................82
Misc. Settings ..........................................................................................................................82
Troubles hoot ing .......................................................................................................................83
Save Conf iguratio n ..........................................................................................................................86
Restart..........................................................................................................................................87
Logout ..........................................................................................................................................88
4. Software Installation and Conf iguration......................................................................................... 89
Overview .......................................................................................................................................89
Wireless Search Ut ility .....................................................................................................................89
Insta lli ng Wire less Search Ut ility .................................................................................................89
Conf iguring W ireless Search Ut ility ..............................................................................................92
5. Using Other Consoles .................................................................................................................... 98
RS-232 Console Conf iguration (115200, None, 8, 1, VT100) ...................................................................98
Configuration by Telnet and SSH Consoles......................................................................................... 100
Configuration by Web Browser with HTTPS/S SL .................................................................................. 101
Disabling Telnet and Browser Access ................................................................................................ 102
A. References...................................................................................................................................103
AeroLink Protection ....................................................................................................................... 103
Wireless D istribution System (WDS) ................................................................................................. 105
Beacon........................................................................................................................................ 106
DTIM .......................................................................................................................................... 106
Fragment..................................................................................................................................... 106
RTS Threshold .............................................................................................................................. 106
STP and RSTP............................................................................................................................... 107
The STP/RSTP Concept ........................................................................................................... 107
Differences between RSTP and STP ........................................................................................... 107
B. Supporting Information................................................................................................................108
Firmware Recovery........................................................................................................................ 108
Declaration of Conf ormity ............................................................................................................... 109
Federal Communication Commission Interference Statement ......................................................... 109
RED Compliance Statement ............................................................................................................ 109

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5
1. Introduction
The AWK-3131A industrial a/b/g/n high speed wireless Access Point products are ideal wireless solutions f or
hard-to-wire applications that use mobile equipment connected over a TCP/IP network. The AWK-3131A is
rated to operate at temperatures ranging f rom -25 to 60°C f or standard models and -40 to 75°C f or wide
temperature models, and is rugged enough f or any harsh industrial environment.
Overview
The AWK-3131A is 802.11n compliant to deliver speed, range, and reliability to support even the most
bandwidth-intensive applications. The 802.11n standard incorporates multiple technologies, including
Spatial Multiplexing MIMO (Multi-In, Multi-Out), 20 and 40 MHz channels, and dual bands (2.4 GHz and 5
GHz) to provide high speed wireless communication, while still being able to communicate with legacy
802.11a/b/g devices.
The AWK's operating temperature ranges from -25 to 60°C f or standard models and -40 to 75°C f or wide
temperature models, and is rugged enough f or all types of harsh industrial environments. Installation of the
AWK is easy using DIN-Rail mounting or distribution boxes, and with its wide operating temperature range,
IP30-rated housing with LED indicators, and DIN-Rail mounting it is a convenient yet reliable solution f or all
types of industrial wireless applications.
Package Checklist
Moxa’s AWK-3131A is shipped with the f ollowing items. If any of these items is missing or damaged, please
contact your customer service representative for assistance.
•1 AWK-3131A wireless AP/client
•2.4/5 GHz antennas: ANT-WDB-ARM-0202
•DIN-rail kit
•plastic RJ45 protective caps
•Cable holder with one screw
•Quick installation guide (printed)
•Warranty card
NOTE
The above items come with the standard AWK-3131A model, but the package contents may vary for
customized versions.

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Product Features
•IEEE 802.11a/b/g/n compliant
•Advanced wireless security
64-bit and 128-bit WEP/WPA/WPA2
SSID Hiding/IEEE 802.1X/RADIUS
Packet access control & filtering
•STP/RSTP support for network system redundancy
•Long-distance transmission support (5 GHz channel only)
•Turbo Roaming enables rapid handover (Client/Client-Router/Slave mode)
•AeroLink Protection supported f or redundant wireless communication
•ABC-01 f or conf iguration import/export
•RS-232 console management
•2DI+1DO f or on-site monitoring and warnings
•Wide -40 to 75°C operating temperature range (-T model)
•Redundant 12 to 48 VDC power inputs or IEEE 802.3af Power over Ethernet
•DIN-Rail or wall mounting
•IP30 protected high-strength metal housing
NOTE
The latest specifications for Moxa’s products can be found at https://www.moxa.com.
ATTENTION
The AWK-3131A is NOT a portable mobile device and should be located at least 20 cm away f rom the
human body.
The AWK-3131A is NOT designed f or the general public. A well-trained technician should be enlisted to
ensure safe deployment of AWK-3131A units, and to establish a wireless network.
Patent http://www.moxa.com/doc/operations/Moxa_Patent_Marking.pdf

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Functional Design
LED Indicators
The LEDs on the f ront panel of the AWK-3131A provide a quick and easy means of determining the current
operational status and wireless settings.
The FAULT LED indicates system failures and user-configured events. If the AWK-3131A cannot retrieve the
IP address from a DHCP server, the FAULT LED will blink at half second intervals. The SIGNAL LEDs
indicate signal strength, and only operate in Client mode.

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The following table summarizes how to read the device’s wireless settings from the LED displays. More
inf ormation is available in Chapter 3 in the “Basic WLAN Setup” section.
LED
Color
State
Description
Front Panel LED Indicators (System)
PWR1 Green
On
Power is being supplied from power input 1.
Off
Power is not being supplied from power input 1.
PWR2 Green
On
Power is being supplied from power input 2.
Off
Power is not being supplied f rom power input 2.
PoE Amber
On
Power is being supplied via PoE.
Off
Power is not being supplied via PoE.
FAULT Red
On
System is booting up, or a system configuration error or
relay event has occurred.
Blinking
(fast at intervals of
0.5 second)
Cannot get an IP address from the DHCP server
Blinking
(slow at intervals
of 1 second)
IP address conflict
Off Error condition does not exist.
STATE Green
On
System startup is complete and the system is in
operation.
Blinking
(fast at intervals of
0.5 second)
AeroLink Protection is enabled and is currently in
“Backup” state
Blinking
(slow
at intervals of
1 second)
Device has been located by Wireless Utility
(interval: 1 second)
Red
On
System is booting up
SIGNAL
(5 LEDs) Green
On
Wi-Fi Signal Level (f or Client/Slave/Clien t-Router Modes
only)Off
WLAN
Green
On
WLAN function is in Client/Slave/Client-Router mode and
has established a link with an AP.
Blinking WLAN data transmission is in Client/Slave/Client-Router
mode.
Off
WLAN is not in Client/Slave/Client-Router mode or has
not established a link with an AP.
Amber
On
WLAN is in AP/Master mode.
Blinking
WLAN data transmission is in AP/Master mode.
Off WLAN is not in use or not working properly
LAN
Green
On
LAN port’s 1000 Mbps link is active.
Blinking
Data is being transmitted at 1000 Mbps.
Off
LAN port’s 1000 Mbps link is inactive.
Amber
On
LAN port’s 10/100 Mbps link is active.
Blinking
Data is being transmitted at 10/100 Mbps.
Off
LAN port’s 10/100 Mbps link is inactive.
ATTENTION
When the system fails to boot, the LEDs f or STATE (Green), FAULT, and WLAN will all light up
simultaneously and blink at one-second intervals. This may be due to improper operation or uncontrollable
issues, such as an unexpected shutdown while updating the firmware. To recover the firmware, refer to
the “Firmware Recovery” section in Appendix B.

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Beeper
The beeper emits two short beeps when the system is ready.
Reset Button
The RESET button is located on the top panel of the AWK-3131A. You can reboot the AWK-3131A or reset it
to f actory def ault settings by pressing the RESET button with a pointed object such as an unfolded paper
clip.
•System reboot: Hold the RESET button down for under 5 seconds and then release.
•Reset to factory default: Hold the RESET button down f or over 5 seconds until the STATE LED starts
blinking green. Release the button to reset the AWK-3131A.
Relay (Digital Output)
The AWK-3131A has one relay output consisting of the 2 terminal block contacts on the top panel, as shown
below. These relay contacts are used to forward system failures and user-conf igured events.
The two wires attached to the relay contacts f orm an open circuit when a user-conf igured event is triggered.
If a user-configured event does not occur, the relay circuit will remain closed. For safety reasons, the relay
circuit is kept open when the AWK-3131A is not powered up.
Summary of the AWK-3131A’s Relay Status
Power Status
Event
Relay
Off
–
Open
On
Yes
Open
No
Short

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2. Getting Started
This chapter explains how to install Moxa’s AirWorks AWK-3131A f or the first time, and quickly set up your
wireless network and test whether the connection is running well. The Function Map discussed in the third
section provides a convenient means of determining which f unctions you need to use.
First-time Installation and Configuration
Bef ore installing the AWK-3131A, make sure that all items in the Package Checklist are in the box. You will
need access to a notebook computer or PC equipped with an Ethernet port. The AWK-3131A has a def ault IP
address that must be used when connecting to the device f or the first time.
Step 1: Select the power source.
The AWK-3131A can be powered by a DC power input or PoE (Power over Ethernet). The AWK-
3131A will use whichever power source you choose.
Step 2: Connect the AWK-3131A to a notebook or PC.
Since the AWK-3131A supports MDI/MDI-X auto-sensing, you can use either a straight-through
cable or crossover cable to connect the AWK-3131A to a computer. The LED indicator on the
AWK-3131A’s LAN port will light up when a connection is established.
Step 3: Set up the computer’s IP address.
Choose an IP address on the same subnet as the AWK-3131A. Since the AWK-3131A’s def ault IP
address is 192.168.127.253, and the subnet mask is 255.255.255.0, you should set the IP
address of the computer to 192.168.127.xxx.
NOTE
After you select Maintenance > Load Factory Default and click the Submit button, the AWK-3131A will
be reset to factory default settings and the IP address will be reset to 192.168.127.253.

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Step 4: Use the web-based manager to configure the AWK-3131A
Open your computer’s web browser and type http://192.168.127.253 in the address f ield to
access the homepage of the web-based Network Manager. Before the homepage opens, you will
need to enter the user name and password as shown in the f ollowing f igure. For f irst-time
configuration, enter the def ault user name and password and then click on the Login button:
NOTE
Default user name and password:
Username: admin
Password: moxa (starting with f irmware version 1.4)
root (up to firmware version 1.3)
For security reasons, we strongly recommend changing the def ault password. To do so,
select Maintenance > Password, and then f ollow the on-screen instructions to change the password.
NOTE
Af ter you click Submit to apply changes the web page will refresh (Updated) will appear on the page and
a blinking reminder will be shown on the upper-right corner of the web page:
To activate the changes click Restart and then Save and Restart af ter you change the settings. About 30
seconds are needed for the AWK-3131A to complete the reboot procedure.

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Step 5: Select the AWK-3131A operation mode.
By def ault, the AWK-3131A's operation mode is set to AP. You can change to Client mode in
Wireless LAN Setup > WLAN > Basic WLAN Setup. Detailed information about conf iguring the
AWK-3131A's operation can be f ound in Chapter 3.
Step 6: Test communications.
In the f ollowing sections we describe two test methods that can be used to ensure that a network
connection has been established.
Communication Testing
Af ter installing the AWK-3131A you can run a sample test to make sure the AWK-3131A and wireless
connection are f unctioning normally. Two testing methods are described below. Use the first method if you
are using only one AWK-3131A device, and use the second method if you are using two or more AWK-
3131A units.
How to Test One AWK-3131A
If you are only using one AWK-3131A, you will need a second notebook computer equipped with a WLAN
card. Configure the WLAN card to connect to the AWK-3131A (the def ault SSID is MOXA), and change the
IP address of the second notebook (Notebook B) so that it is on the same subnet as the first notebook
(Notebook A), which is connected to the AWK-3131A.
Af ter configuring the WLAN card, establish a wireless connection with the AWK-3131A and open a DOS
window on Notebook B. At the prompt, type
ping <IP address of notebook A>
and then press Enter (see the figure below). A “Reply from IP address …” response means the
communication was successful. A “Request timed out.” response means the communication f ailed. In this
case, recheck the conf iguration to make sure the connections are correct.
How to Test Two or More AWK-3131A Units
If you have two or more AWK-3131A units, you will need a second notebook computer (Notebook B)
equipped with an Ethernet port. Use the default settings f or the f irst AWK-3131A connected to notebook A
and change the second or third AWK-3131A connected to notebook B to Client mode, and then conf igure the
notebooks and AWK-3131A units properly.

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Af ter setting up the testing environment, open a DOS window on notebook B. At the prompt, type:
ping <IP address of notebook A>
and then press Enter. A “Reply from IP address …” response means the communication was successful. A
“Request timed out” response means the communication f ailed. In this case, recheck the configuration to
make sure the connections are correct.
Function Map
General Setup for administering the AWK-3131A
Essential settings related to establishing a wireless
network
Advanced features to support additional network
management and secure wired and wireless
communication
NOTE: These advanced f unctions are all optional.
Quick overview of the AWK-3131A’s status

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Current status information for monitoring
wired/wireless network performance,
advanced services, and device management
functions.
Functions for maintaining the AWK-3131A, and
for diagnosing the network.
On-demand f unctions to support the web-based
console management operation.
Application-oriented device management
functions to set up events, traps, and reactions
via relay warning, e-mail, and SNMP notif ication
NOTE: These f unctions are all optional.

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The management f unctions are categorized in a tree and shown in the left f ield of the web-based
management console. You can ef f iciently locate the f unction you need with this guide.

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3. Web Console Configuration
In this chapter, we explain all aspects of web-based console configuration. Moxa’s easy-to-use management
functions help you set up your AWK-3131A and make it easy to establish and maintain your wireless
network.
Web Browser Configuration
Moxa AWK-3131A’s web browser interface provides a convenient way to modify its configuration and access
the built-in monitoring and network administration f unctions. The recommended web browser is Microsoft®
Internet Explorer 7.0 or 8.0 with JVM (Java Virtual Machine) installed.
NOTE
To use the AWK-3131A’s management and monitoring f unctions f rom a PC host connected to the same
LAN as the AWK-3131A, you must make sure that the PC host and the AWK-3131A are on the same logical
subnet. Similarly, if the AWK-3131A is conf igured f or other VLAN settings, you must make sure your PC
host is on the management VLAN.
Moxa AWK-3131A’s def ault IP is 192.168.127.253.
Follow these steps to access the AWK-3131A’s web-based console management interface.
1. Open your web browser (e.g., Internet Explorer) and type the AWK-3131A’s IP address in the address
f ield. Press Enter to establish the connection.
2. The Web Console Login page will open. Enter the password (default Username = admin; def ault
Password = moxa) and then click Login to continue.

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3. You may need to wait a few moments for the web page to download to your computer. Note that the
Model name and IP address of your AWK-3131A are both shown in the title bar of the web page. This
inf ormation can be used to help you identif y multiple AWK-3131A units.
If an incorrect username or password is entered, a warning message is displayed. The system will lock
the user account based on the settings conf igured in the Maintenance > Account Settings page. The
default retry count is 5 times and the def ault lockout time is 600 seconds.
Once an account is locked, the user will have to wait out the duration of the lockout period before
retrying.
4. Use the Quick Setup f unction on the homepage to quickly set up the AWK or click on the Overview
button to see the basic device settings. The Import/Export f unction helps you back up the system or
to perform a system recovery from an existing backup.

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5. Click on the Home link to go back to the main page.
Use the menu tree on the left side of the browser to open the AWK-3131A f unctions.
In the following paragraphs, we describe each AWK-3131A management f unction in detail. A quick overview
is available in this manual in the “Function Map” section of Chapter 3.
NOTE
The model name of the AWK-3131A is shown as AWK-3131A-XX, where XX indicates the country code. The
country code indicates the AWK-3131A version and which f requencies it uses. We use AWK-3131A-US as
an example in the f ollowing f igures. (The country code and model name that appears on your computer
screen may be diff erent than the one shown here.)
Overview
The Overview page summarizes the AWK-3131A’s current status. The information is categorized into
several groups: System Information, Device Information and 802.11 Information.

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Click on the SSID link (MOXA) to see more detailed information on 802.11 settings, as shown in the
f ollowing f igure:
NOTE
The 802.11 Information that is displayed may be different for different operation modes. For example,
Current BSSID, Signal strength, and SNR are only available under Client/Client-Router/Slave operation
modes.

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Quick Setup
The AWK-3131A provides a quick setup wizard to help you conf igure the basic settings including device
inf ormation and wireless settings.
Once you enter the setup, links to each step in the process are displayed at the top of the page. You can
either click Next to go to the next step or click directly on a link at the top of the page to go to a specif ic
step.
NOTE
You can move your cursor on the question mark symbol next to a f ield to view a tooltip that provides
additional details regarding the corresponding f ield.
In the Wi-Fi Settings step, you can either use Manual to manually configure the basic Wi-Fi settings or
click AeroMag to opt f or AeroMag to automatically set up your Wi-Fi network.