LM LM820 User manual

IEEE
802.11 b/g/n
USER’S GUIDE
VERSION 1.0
© All rights reserved.
All trade names are registered trademarks of respective manufacturers listed.
This manual may not be copied in any media or form withou t the written consent of original maker.
LM820 Wi-Fi SMT Module 802.11n 150Mbps

Information To User ..................................................…….. I
1. Introduction .........................................................…… 1
2. Wireless LAN Basics ................................................……. 3
3. IP ADDRESS ..........................................................……. 4
4. Install Driver/Utility ...............................................……. 5
4.1 Windows XP/Vista/Win7.......................................... 5
5. Wireless Network Configuration ....................................... 7
5.1 Utility Icon ........................................................ 7
5.2 Client Mode (Default Setting)................................... 7
6. Technical Specifications ............................................... 15
7. Troubleshooting ......................................................... 16
8. Glossary ................................................................... 17

INFORMATION TO USER
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.
REGULATION INFORMATION
The WLAN 11n USB Client Adapter must be installed and used in strict accordance with the
manufacturer’s instructions. This device complies with the following radio frequency and safety
standards.
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.
(2) This device must accept any interference received, including
interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
This Transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body.
Your device contains a low power transmitter. When device is transmitted it sends out Radio
Frequency (RF) signal. Use only with supplied antenna. Unauthorized antenna, modification, or
attachments could damage the transmitter and may violate FCC regulations.
You are cautioned that changes or modifications not expressly approved by the part responsible
for compliance could void the user’s authority to operate the equipment.

FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users
must follow the specific operating instructions for satisfying RF exposure compliance.
Note 1: This module certified that complies with RF exposure requirement under portable or mobile or fixed
condition, this module is to be installed only in portable or mobile or fixed applications.
A portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the
device is/are within 20 centimeters of the body of the user
A mobile device is defined as a transmitting device designed to be used in other than fixed locations and to
generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained
between the transmitter's radiating structure(s) and the body of the user or nearby persons. Transmitting devices
designed to be used by consumers or workers that can be easily re-located, such as wireless devices associated
with a personal computer, are considered to be mobile devices if they meet the 20 centimeter separation
requirement.
A fixed device is defined as a device is physically secured at one location and is not able to be easily moved to
another location.
Note 2: Any modifications made to the module will void the Grant of Certification, this module is limited to OEM
installation only and must not be sold to end-users, end-user has no manual instructions to remove or install the
device, only software or operating procedure shall be placed in the end-user operating manual of final products.
Note 3: The device must not transmit simultaneously with any other antenna or transmitter.
Note 4: To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring
compliance with the module(s) installed and fully operational. For example, if a host was previously authorized as
an unintentional radiator under the Declaration of Conformity procedure without a transmitter certified module
and a module is added, the host manufacturer is responsible for ensuring that the after the module is installed and
operational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since this
may depend on the details of how the module is integrated with the host, LM Technologies Ltd. shall provide
guidance to the host manufacturer for compliance with the Part 15B requirements.
Note 5: FCC ID label on the final system must be labeled with “Contains FCC ID: VVX-LM820-0462” or
“Contains transmitter module FCC ID: VVX-LM820-0462”.
The transmitter module must be installed and used in strict accordance with the manufacturer's instructions as
described in the user documentation that comes with the host product. LM Technologies Ltd. is responsible for the
compliance of the module in all final hosts.

Europe- R&TTE Compliance Statement
Hereby, the company who declares that this equipment complies with the essential requirements
and other relevant provisions of DIRECTIVE 1999/5/CE OF THE EUROPEAN PARLIAMENT AND
THE COUNCIL of March 9, 1999 on radio equipment and telecommunication terminal Equipment
and the mutual recognition of their conformity (R&TTE).
CE Declaration of Conformity
For the following equipment:
WLAN 11n USB Client Adapter
(Product Name) WLAN 11n USB Client Adapter
(Model Designation)
is herewith confirmed to comply with the requirements set out in the Council (European
parliament) Directive on the Approximation of the Laws of the Member States relating to
Electromagnetic Compatibility of Radio and Telecom device (1999/5/EC). For the
evaluation regarding this Directive, the following standards were applied:
EN 300 328 V1.7.1
EN 301 489-1 V1.8.1 ; EN 301 489-17 V2.1.1
EN 60950-1:2006+A11:2009
This equipment is marked with the symbol and can be used throughout the
European community. Marking by the symbol indicates that usage restrictions apply.
France - 2.4GHz for Metropolitan France:
In all Metropolitan départements, wireless LAN frequencies can be used under the following
conditions, either for public or private use:
·Indoor use: maximum power (EIRP*) of 100 mW for the entire 2400-2483.5 MHz frequency
band
·Outdoor use: maximum power (EIRP*) of 100 mW for the 2400-2454 MHz band and with
maximum power (EIRP*) of 10 mW for the 2454-2483 MHz band
Caution: Exposure to Radio Frequency Radiation.
To comply with RF exposure compliance requirements, for mobile configurations, a separation
distance of at least 20 cm must be maintained between the antenna of this device and all persons.
This device is intended for use as check in the following European Community countries:
Austria Belgium Czech Republic Cyprus
Denmark Estonia France Finland
Germany Greece Hungary Ireland
Italy Iceland Luxemburg Latvia
Lithuania Malta Norway Netherlands
Portugal Poland Spain Sweden
Slovakia Slovenia United Kingdom

The channel identifiers, channel center frequencies, and regulatory domains of
each 22-MHz-wide channel are shown in following Table.
Channel
Identifier
Frequency
(MHZ)
Regulato r y Domains
Japan ETSI
North
Ame r ica
Israel
France
Outdoor
Mexico
1 2412 ●●●●
2 2417 ●●●●
3 2422 ●●●●●
4 2427 ●●●●●
5 2432 ●●●●●
6 2437 ●●●●●
7 2442 ●●●●●
8 2447 ●●●●●
9 2452 ●●●●●
10 2457 ●●●●
11 2462 ●●●●
12 2467 ●●
13 2472 ●●
14 2484 ●

1
Thank you for your purchase of the WLAN Adapter. Featuring wireless
technology, this wireless networking solution has been designed for both
large and small businesses, and it is scalable so that you can easily add
more users and new network features depending on your business scale.
FEATURES
Support Microsoft XP(32bit/64bit) / Vista(32bit/64bit) / Win7(32bit/64bit).
Operating distance of up to 300 meters in free space.
150/120/90/60/54/48/36/30/24/22/18/12/11/6/5.5/2/1 Mbps selectable Data
Rate.
64/128-bit WEP , WPA (Wi-Fi Protected Access), WPA2
2.400GHz ~ 2.4835GHz unlicensed ISM Frequency Band.
Modulation Method :
IEEE 802.11b : DSSS (Direct Sequence Spread Spectrum).
IEEE 802.11g / 802.11n : OFDM (Orthogonal Frequency Division
Multiplexing). Easy operation and setting up.
SYSTEM REQUIREMENTS
Windows System : XP(32bit/64bit) / Vista(32bit/64bit) / Win7(32bit/64bit).
PCs must have a device driver installed. It allows you to communicate
with WLAN 11n USB Client Adapter.

2
BEFORE YOU START
1. Confirm Box Contents
◆
WLAN 11n USB Client Adapter
◆Quick Start Guide
◆Driver CD
CONNECTING YOUR WLAN 11n USB Client Adapter TO PC
Quick Start Guide
Connect your WLAN 11n USB Client Adapter to your PC. Install driver.
GETTING TO KNOW WIRELESS LAN ADAPTER
LED
LED turns on when WLAN link to WLAN adaptor or AP.
LED is blinking when WLAN Adapter is active.

3
Wireless LAN network defined by IEEE 802.11b/g standard committee
could be configured as :
Ad Hoc wireless LAN.
Infrastructure wireless LAN.
Ad Hoc network is a group of PCs installed with wireless LAN cards, this
group of PCs is called a BSS (Basic Service Set). PCs in this group can use
their wireless LAN cards to communicate with each other, but can not
connect to the Internet.
Ad Hoc Wireless Network Infrastructure Wireless Network
The most obvious difference between Infrastructure wireless network
and Ad Hoc wireless network is that the PCs in Infrastructure wireless
network can access the resource in the Internet through Access Point.
Depending on your requirement, you can easily set up your PC’s
network to be a “Ad Hoc”or “Infrastructure”wireless network. Generally
speaking, if in your network, there is an Access Point in it, we recommend
you to set your network as an “Infrastructure”, so it can connect to
the Internet.

4
To use the WLAN 11n USB Client Adapter with a computing device, the WLAN
Adapter must be equipped with a proper Interface. All drivers and supporting
software for the WLAN Adapter must be installed and configured first.
Ask your system administrator for the following information, which
you may need to provide during driver installation :
Your Wireless Client
Name. Your Wireless
SSID.
Your computer’s unique client name and workgroup
name. For your network account, your user name and
password.
Your IP address, gateway address, and subnet mask if you’re
not using a DHCP client.
Any computer on a network is identified by a unique network
address. There are two methods to assign a network address to a
computer on a TCP/IP network :
Static IP addressing.
Dynamic IP addressing (DHCP Client).
In network with static IP addressing, the network administrator
manually assigns an IP address to each computer. Once a static IP
address is assigned, a computer uses the same IP address every
time it reboots and logs on to the network. You may manually change
the IP address in the
Network Properties dialog box. Network using static IP address is
easy to set up and do not require additional network management
software .
In network with dynamic IP addressing, a DHCP server in the
network dynamically assigns IP addresses to all clients every time
they log on to the network. Network using dynamic IP address
requires setting up and running a DHCP Server.

5
The installation & driver CD will automatically activate the autorun installation
program after you insert the disk into your CD drive.
Step 1 :
Insert the installation CD into your
CD-ROM. Choose the Setup
Language and click Next button.
Step 2 :
Installation descriptions
shown. Click Next to
continue.
Click Install to begin the installation

6
Installing & configuring WLAN utility
Installing Drivers.
Step 3 :
Click Finish to complete installation

7
WLAN 11n USB Client Adapter uses its own management software. All
functions controlled by users are provided by this application. When you insert
the WLAN Adapter into your laptop or desktop, a icon should appear in the
Windows System Tray automatically.
5.1 Utility Icon
▓Client mode utility running but no WLAN Adapter plugged
▓Client mode utility running and WLAN Adapter scan available network.
▓Client mode utility running and WLAN Adapter can not scan any AP
▓AP mode utility running.
5.2 Client Mode (Default Setting)
Wireless Device Control :
▓Show Tray Icon –Show icon or not show icon in systray.
▓Radio Off –Stop wireless signal.
▓Disable Adapter –Stop wireless device.
▓Windows Zero Config –Stop Use Utility.

8
5.2.1 GENERAL SETTING
Once device is set, double
click on that icon and the
configuration window will pop
up as shown. It shows the
current connected network.
The signal strength and link
quality are displayed also.
The bar graph displays the
quality and strength of the link
between the node and its Access Point. Link Quality is a
measurement of receiving and transmitting performances over the
radio.
Network Address displays current MAC Address, IP Address,
Subnet. and Gateway.
Click Renew IP button to refresh IP address leased from wireless
AP.
5.2.2 PROFILE SETTING
In profile tab, you can
Add, Remove, Edit,
Duplicate and Set Default to
manipulate profile content
manually. Strongly
recommend to use profile
after you do Available
Network.

9
5.2.3 AVAILABLE NETWOEK SETTING
Click Available Network
tab and it will show all
available networks that radio
can reaches. Select proper
SSID & BSSID you want to
connect.
Click Refresh button to
force and rescan available
networks currently.
Select one of SSIDs, and click Add to Profile to create profile that
can be configured more
wireless parameters.
In this page, you can edit
your profile name,
configure wireless security
like WEP, WPA, WPA2,
802.1x …etc. After
finishing setup, click OK
button to save
configuration
5.2.4 Status
Status page tab, shows all
wireless, networking and
device driver version in
details.

10
5.2.5 Statistics
Statistics page tab will show
real-time TX/RX relative
counters to check or
evaluate the
wireless performance.
Click Reset button to set
counter to
zero.
5.2.6 Wi-Fi Protected Setup
An easy and secure setup
solution for Wi-Fi network.
you can choose PIN Code or
Push Button method to
connect to an AP.
▓Pin method:
Step 1 :
Push the PIN button.

11
Step 2 :
Select a specific AP
Step 3 :
Enter the PIN code into your AP.
Step 3 :
Select AP that you want to
configure.
Step 4 :
Wait for configuring your
wireless AP to be the security
setting.

12
▓PBC method:
Step 1 :
Push the PBC button.
Step 2 :
Push the physical button on
your AP or visual button on
the WPS config page.
▓Soft AP:
Step 1 :
Click Access Point to change AP
mode

13
Step 2 :
Click Config to set AP.
Step 3 :
Setting SSID and Securtiy
Step 4 :
Choosing the Ethernet controller
and click Apply to bridge your
Soft AP.

14