LM Technologies LM809 LM809 WiFi USB Adapter(300Mbps) User Manual LM809 USER MANUAL V1 0

LM Technologies Ltd. LM809 WiFi USB Adapter(300Mbps) LM809 USER MANUAL V1 0

UserManual.wiki >

LM Technologies >

LM809 User Manual HTML Version

15_LM809-0647 UserMan

LM809-0647

Host Controller Interface (HCI) via USB Interface

USER MANUAL

All trade names are registered trademarks of respective manufacturers listed.

This manual may not be copied in any media or form without the written consent of original maker.

www.lm-technologies.com

LM809 User Manual

Revision Date Changes Description

v1.0 21/02/2017 First revision of this user manual.

www.lm-technologies.com

LM809 User Manual

Contents

1. Introduction..................................................................................................................................... 4

1.1. Features ................................................................................................................................... 4

1.2. System Requirements ......................................................................................................... 4

1.3. Adapter LED ............................................................................................................................ 4

2. Windows Driver / Utility Installation ....................................................................................... 5

3. MAC OS Driver / Utility Installation ........................................................................................ 7

3.1. Installation Process .............................................................................................................. 7

3.2. Uninstalling the MAC OS Driver .................................................................................... 12

4. Wireless LAN Basics ................................................................................................................... 13

5. IP Address ...................................................................................................................................... 14

6. Wireless Network Configuration ............................................................................................ 15

6.1. Utility Icon.............................................................................................................................. 15

6.2. Client Mode (Default Setting) ......................................................................................... 15

6.3. General Settings .................................................................................................................. 16

6.4. Profiling Settings ................................................................................................................. 16

6.5. Available Network Settings .............................................................................................. 17

6.6. Status .......................................................................................................................................18

6.7. Statistics ..................................................................................................................................18

6.8. Wi-Fi Protected Setup ........................................................................................................ 19

7. Glossary ..........................................................................................................................................23

www.lm-technologies.com

LM809 User Manual

1. Introduction

1.1. Features

xWiFi 802.11 b/g/n

xOperates in 2.4 GHz Frequency bands

xPlug and Play (Linux, MAC OSX and Windows XP – 10 compatible)

xBPSK, QPSK, 16 QAM and 64 QAM modulation schemes

xWEP, TKIP, and AES, WPA and WPA2 encryption schemes

xFully-featured software utility for easy configuration and management

xCan be setup as an ad-hoc network via peer to peer communications

xSmall convenient size

xRoHS, REACH and WEEE compliant

1.2. System Requirements

Host Operating System OS Version Number (LM Tested)

Linux xUbuntu 15.10 (Kernel 4.2.0-16-generic)

xUbuntu 14.04.03 (Kernel 3.13.0-77-generic)

MAC OSX xOSX 10.11 (El Capitan)

xOSX 10.6 (Snow Leopard)

Windows xWin 10 (32-bit & 64-Bit)

xWin 8/8.1 (32-bit & 64-Bit)

xWin 7 (64-bit)

xWin XP (32-bit)

1.3. Adapter LED

xLED turns on when the adapter connects with another WiFi adapter or AP.

xLED blinks when the WiFi Adapter is active.

www.lm-technologies.com

LM809 User Manual

2. Windows Driver / Utility Installation

The installation of the driver and utility on the host computer will automatically activate,

the autorun installation program after you click the exe application. All adapter drivers for

the relevant host operating can be found on our website.

Click here for downloadable drivers.

Step 1 :

Download the compatible driver for your host

operating system. Choose the Setup

Language and click Next button.

Step 2 :

Installation descriptions shown.

Click Next to continue.

Click Install to begin the installation.

www.lm-technologies.com

LM809 User Manual

Installing & configuring Realtek utility.

Installing Drivers.

Step 3 :

Click Finish to complete installation.

www.lm-technologies.com

LM809 User Manual

3. MAC OS Driver / Utility Installation

3.1. Installation Process

Please follow the steps below for setting up the LM809 on MAC host computer:

Step 1 :

Download the correct driver for the MAC OS version from LM809 product page.

Click here for downloadable drivers.

Step 2 :

Save the installable file on the MAC

Step 3 :

Please ensure there are no other Realtek USB adapter drivers already installed on your

MAC. Any existing drivers may conflict with the new driver and the USB adapter may not

be detected. If an existing driver is found then uninstall it from your MAC.

Step 4 :

Please ensure the Ethernet interface such as Airport or physical LAN connection is

enabled.

www.lm-technologies.com

LM809 User Manual

Step 5 :

Make sure the LM809 is unplugged from the USB port. Unzip the driver file and start the

installation.

Step 6 :

Wait for the installation to finish before restarting the machine

www.lm-technologies.com

LM809 User Manual

Step 7 :

Once the MAC has restarted, connect the LM809 adapter to the USB port. The

Wireless Network Utility will launch automatically and a message will appear to

enable WLAN card.

Step 8 :

Open the Network Preferences and a pop up message will appear stating a

new network interface has been detected. A new network interface e.g. en2 or

en3 will appear in the list of the network interfaces.

www.lm-technologies.com

LM809 User Manual

Step 9 :

Click OK to the pop up message. Select the new Ethernet interface created

(en2, en3 or similar) then press Apply. This enables the selected Ethernet

interface and the Wireless Network Utility detects the LM809. The MAC

address of the LM809 and link status is updated on the Wireless Network

Utility window.

Step 10 :

Check the Available Network section on the Wireless Network Utility and

connect to the wireless network.

Step 11 :

Once the network has connected, press Add to Profile to save the network and

it will connect automatically.

www.lm-technologies.com

LM809 User Manual

Step 12 :

Once the network is connected, the LM809 network interface should appear as

connected in the Network Preferences and on the Link Status window, the

signal strength, connection status and statistics should be shown

www.lm-technologies.com

LM809 User Manual

3.2. Uninstalling the MAC OS Driver

Please follow the below steps to uninstall the LM809 driver on a MAC host computer.

Step 1 :

Run the uninstall.command script in the same folder the driver is extracted.

Step 2 :

You would need the root password to uninstall the driver. Enter the password

when prompted in the terminal

Step 3 :

Once the password is provided the script will uninstall the driver.

Note :

Please DONOT delete the network interface (en2, en3 or similar) created in the network

preference because MAC does not recreate this interface when the driver installation is

executed the next time. It may become difficult to get the LM809 working if the network

interface is deleted.

www.lm-technologies.com

LM809 User Manual

4. Wireless LAN Basics

Wireless LAN network defined by IEEE 802.11b/g/n standard committee can be

configured in the following modes:

xAd Hoc (Point-to-point) wireless LAN.

xInfrastructure wireless LAN.

Ad Hoc Wireless Network Infrastructure Wireless Network

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 cannot connect to the Internet.

The main difference between Infrastructure wireless networks and Ad Hoc wireless

networks is that the PCs in an Infrastructure wireless network can access the resource

in the Internet through an Access Point.

Depending on your application requirements, you can easily set up your PC’s network to

be an “Ad Hoc” or “Infrastructure” wireless network. Generally speaking, if your network

includes an Access Point, we recommend setting your network as an “Infrastructure”

network to allow connectivity to the Interne

www.lm-technologies.com

LM809 User Manual

5. IP Address

To use this WiFi adapter with a computing device, the host device must be equipped

with a USB interface. All drivers and supporting software for the adapter must be

installed and configured first.

Ask your system administrator for the following information, which might be needed

during the driver installation:

xWireless Client Name

xWireless SSID

xThe host’s unique client and workgroup name

For your network account you will need the following:

xUsername

xPassword

xIP address

xGateway address

xSubnet mask (if you’re not using a DHCP client)

Any computer on a network is identified by a unique IP address. There are two methods

to assign an IP address to a computer on a TCP/IP network:

xStatic IP addressing

xDynamic IP addressing (DHCP Client)

In networks 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 onto the network. You may manually

change the IP address in the Network Properties dialog box. Networks using static IP

addresses is easy to set up and do not require additional network management software.

In networks with dynamic IP addressing, a DHCP server in the network dynamically

assigns IP addresses to all clients every time they log onto the network. Networks using

dynamic IP addresses require setting up and running a DHCP Server.

www.lm-technologies.com

LM809 User Manual

6. Wireless Network Configuration

The LM809 uses its own management software. All functions controlled by users are

provided by this application. When you connect the adapter via USB to your laptop or

desktop, an icon should appear in the Windows System Tray automatically.

6.1. Utility Icon

Client mode utility running but no adapter plugged in

Client mode utility running and adapter connected to scan available networks.

Client mode utility running and adapter cannot scan any access points

AP mode utility running.

6.2. Client Mode (Default Setting)

Wireless Device Control:

Show Tray Icon – Show or hide icon in system tray.

Radio Off – Stop wireless signal.

Disable Adapter – Stop wireless device

www.lm-technologies.com

LM809 User Manual

6.3. General Settings

Once device is setup, 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 also displayed.

The status bar displays the quality and

strength of the link between the node and its

Access Point. Link Quality is a measurement

of the receiving and transmitting

performances over the radio.

Network Address displays current MAC

Address, IP Address, Subnet Mask address

and Gateway address.

Click Renew IP button to refresh the IP address leased from the connected wireless AP.

6.4. Profiling Settings

In profile tab, you can

Add, Remove, Edit, Duplicate and Set

Default to manipulate profile content

manually. Strongly recommend using profile

after you check Available Networks

www.lm-technologies.com

LM809 User Manual

6.5. Available Network Settings

Click Available Network tab and it will show

all available networks that the radio reaches.

Select the SSID & BSSID you want to

connect with.

Click Refresh button to rescan available

networks.

Select one of SSIDs, and click Add to Profile to create profile that

can be configured with more wireless

parameters. In this tab you can edit

your profile name and configure wireless

security such as WEP, WPA, WPA2, 802.1x

…etc. After finishing setup, click OK

button to save configuration

www.lm-technologies.com

LM809 User Manual

6.6. Status

Status tab shows all wireless networking

and device driver versions in details.

6.7. Statistics

Statistics tab shows real-time TX/RX relative

counters to check or evaluate the wireless

performance.

Click Reset button to reset the counter to

zero

www.lm-technologies.com

LM809 User Manual

6.8. Wi-Fi Protected Setup

For an easy and secure setup solution

for WiFi network, you can select

PIN Code or Push Button methods to

connect to an AP.

Pin method:

Step 1:

Push the PIN button.

Step 2:

Select a specific AP

Then enter the PIN code into your AP.

www.lm-technologies.com

LM809 User Manual

Step 3:

Select AP that you want to configure.

Step 4:

Wait for configuring your wireless AP to be

the security setting.

PBC method:

Step 1:

Push the PBC button.

www.lm-technologies.com

LM809 User Manual

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

Step 2 :

Click Config to set AP.

www.lm-technologies.com

LM809 User Manual

Step 3:

Setting SSID and Security

Step 4:

Select the Ethernet controller and click

Apply (to bridge your Soft AP).

www.lm-technologies.com

LM809 User Manual

7. Glossary

IEEE 802.11 Standard

The IEEE 802.11 Wireless LAN standards subcommittee, which is formulates a standard

for the industry.

Access Point

An internetworking device that seamlessly connects wired and wireless networks

together.

Ad Hoc

An Ad Hoc wireless LAN is a group of computers, each with a WLAN adapter,

connected as an independent wireless LAN. Ad Hoc wireless LAN is applicable at a

departmental scale for a branch or SOHO operation.

BSSID

A specific Ad Hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be

configured with the same BSSID.

DHCP

Dynamic Host Configuration Protocol - a method in which IP addresses are assigned

by a server dynamically to clients on the network. DHCP is used for Dynamic IP

Addressing and requires a dedicated DHCP server on the network.

Direct Sequence Spread Spectrum

This is the method the wireless cards use to transmit data over the frequency spectrum.

The other method is frequency hopping. Direct sequence spreads the data over one

frequency range (channel) while frequency hopping jumps from one narrow frequency

band to another many times per second.

ESSID

An Infrastructure configuration could also support roaming capability for mobile

workers. More than one BSS can be configured as an Extended Service Set (ESS).

Users within an ESS could roam freely between BSSs while served as a continuous

connection to the network wireless stations and Access Points within an ESS must

be configured with the same ESSID and the same radio channel.

Ethernet

Ethernet is a 10/100Mbps network that runs over dedicated home/office wiring.

Users must be wired to the network at all times to gain access.

Gateway

A gateway is a hardware and software device that connects two dissimilar systems,

such as a LAN and a mainframe. In Internet terminology, a gateway is another name for

a router. Generally a gateway is used as a funnel for all traffic to the Internet.

www.lm-technologies.com

LM809 User Manual

IEEE

Institute of Electrical and Electronics Engineers

Infrastructure

An integrated wireless and wired LAN is called an Infrastructure configuration.

Infrastructure is applicable to enterprise scale for wireless access to central

database, or wireless application for mobile workers.

ISM Band

The FCC and their counterparts outside of the U.S. have set aside bandwidth for

unlicensed use in the so-called ISM (Industrial, Scientific and

Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular is being made

available worldwide. This presents a truly revolutionary opportunity to place

convenient high-speed wireless capabilities in the hands of users around the globe.

Local Area Network (LAN)

A LAN is a group of computers, each equipped with the appropriate network adapter

card connected by cable/air, that share applications, data and peripherals. All

connections are made via cable or wireless media, but a LAN does not use telephone

services. It typically spans a single building or campus.

Network

A network is a system of computers that is connected. Data, files, and messages can

be transmitted over this network. Networks may be local or wide area networks.

Protocol

A protocol is a standardized set of rules that specify how a conversation is to take

place, including the format, timing, sequencing and/ or error checking.

SSID

A Network ID is unique to a network. Only clients and Access Points that share the

same SSID are able to communicate with each other. This string is case-sensitive.

Static IP Addressing

A method of assigning IP addresses to clients on the network. In networks

with a Static IP address, 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, unless it is manually changed.

www.lm-technologies.com

LM809 User Manual

Temporal Key Integrity Protocol (TKIP)

The Temporal Key Integrity Protocol, pronounced tee-kip, is part of the IEEE

802.11i encryption standard for wireless LANs. TKIP is the next generation of

WEP, the Wired Equivalency Protocol, which is used to secure 802.11 wireless

LANs. TKIP provides per-packet key mixing, a message integrity check and a

re-keying mechanism, thus fixing the flaws of WEP.

Transmission Control Protocol / Internet Protocol (TCP/IP)

TCP/IP is the protocol suite developed by the Advanced Research Projects

Agency (ARPA). It is widely used in corporate Internet works, because of its

superior design for WANs. TCP governs how packet is sequenced for

transmission the network. The term “TCP/IP” is often used generically to refer

to the entire suite of related protocols.

Transmit / Receive

The wireless throughput in Bytes per second averaged over two seconds.

Wi-Fi Alliance

The Wi-Fi Alliance is a nonprofit international association formed in 1999 to certify

interoperability of wireless Local Area Network products based on IEEE 802.11

specification. The goal of the Wi-Fi Alliance’s members is to enhance the user

experience through product interoperability. The organization is formerly known as

WECA.

Wi-Fi Protected Access (WPA)

The Wi-Fi Alliance put together WPA as a data encryption method for 802.11 wireless

LANs. WPA is an industry-supported, pre-standard version of 802.11i utilizing the

Temporal Key Integrity Protocol (TKIP), which fixes the problems of WEP, including

using dynamic keys.

Wide Area Network (WAN)

A WAN consists of multiple LANs that are tied together via telephone services and /

or fiber optic cabling. WANs may span a city, a state, a country, or even the world.

Wired Equivalent Privacy (WEP)

Now widely recognized as flawed, WEP was a data encryption method used

to protect the transmission between 802.11 wireless clients and

APs. However, it used the same key among all communicating devices. WEP’s

problems are well-known, including an insufficient key length and no automated

method for distributing the keys. WEP can be easily cracked in a couple of hours

with off-the-shelf tools.

Advanced Encryption Standard (AES)

Security issues are a major concern for wireless LANs, AES is the U.S. government’s

next-generation cryptography algorithm, which will replace DES and 3DE

www.lm-technologies.com

LM809 User Manual

Wireless LAN (WLAN)

A wireless LAN does not use cable to transmit signals, but rather uses radio

or infrared to transmit packets through the air. Radio Frequency

(RF) and infrared are the commonly used types of wireless transmission. Most

wireless LANs use spread spectrum technology. It offers limited bandwidth,

usually under 11Mbps, and users share the bandwidth with other devices in the

spectrum; however, users can operate a spread spectrum device without

licensing from the Federal Communications Commission (FCC).

Fragment Threshold

The proposed protocol uses the frame fragmentation mechanism defined in IEEE

802.11 to achieve parallel transmissions. A large data frame is fragmented into

several fragments each of size equal to fragment threshold.

By tuning the fragment threshold value, we can get varying fragment sizes.

The determination of an efficient fragment threshold is an important issue in

this scheme. If the fragment threshold is small, the overlap part of the master

and parallel transmissions is large. This means the spatial reuse ratio of parallel

transmissions is high. In contrast, with a large fragment threshold, the overlap is small

and the spatial reuse ratio is low. However high fragment threshold leads to low

fragment overhead. Hence there is a trade-off between spatial re-use and fragment

overhead.

Fragment threshold is the maximum packet size used for fragmentation.

Packets larger than the size programmed in this field will be fragmented If you find that

your corrupted packets or asymmetric packet reception (all send packets, for

example). You may want to try lowering your fragmentation threshold. This will cause

packets to be broken into smaller fragments. These small fragments, if corrupted, can

be resent faster than a larger fragment. Fragmentation increases overhead, so you'll

want to keep this value as close

to the maximum value as possible.

RTS (Request To Send) Threshold

The RTS threshold is the packet size at which packet transmission is governed

by the RTS/CTS transaction. The IEEE 802.11-1997 standard allows for short packets to

be transmitted without RTS/CTS transactions. Each station can have a different RTS

threshold. RTS/CTS is used when the data packet size exceeds the defined RTS

threshold. With the CSMA/CA transmission mechanism, the transmitting station sends

out an RTS packet to the receiving station, and waits for the receiving station to send

back a CTS (Clear to Send) packet before sending the actual packet data. This setting

is useful for networks with many clients. With many clients, and a high network load,

there will be many more collisions. By lowering the RTS threshold, there may fewer

collisions, and performance should improve. Basically, with a faster RTS threshold, the

www.lm-technologies.com

LM809 User Manual

system can recover from problems faster. RTS packets consume valuable bandwidth,

however, so setting this value too low will limit performance.

Beacon Interval

In addition to data frames that carry information from higher layers, 802.11 includes

management and control frames that support data transfer. The beacon frame, which

is a type of management frame, provides the "heartbeat" of a wireless LAN, enabling

stations to establish and maintain communications in an orderly fashion. Beacon

Interval represents the amount of time between beacon transmissions. Before a

station enters power save mode, the station needs the beacon interval to know when

to wake up to receive the beacon (and learn whether there are buffered frames at

the access point).

Preamble Type

There are two preamble types defined in IEEE 802.11 specification. A long preamble

basically gives the decoder more time to process the preamble. All 802.11 devices

support a long preamble. The short preamble is designed to improve efficiency (for

example, for VoIP systems). The difference between the two is in the Synchronization

field. The long preamble is 128 bits, and the short is 56 bits.

WPA2

It is the second generation of WPA. WPA2 is based on the final IEEE 802.11i

amendment to the 802.11 standard.

Temporal Key Integrity Protocol (TKIP)

The Temporal Key Integrity Protocol, pronounced tee-kip, is part of the IEEE 802.11i

encryption standard for wireless LANs. TKIP is the next generation of WEP, the Wired

Equivalency Protocol, which is used to secure 802.11 wireless LANs. TKIP provides

per-packet key mixing, a message integrity check and a

re-keying mechanism, thus fixing the flaws of WEP.

802.1x Authentication

802.1x is a framework for authenticated MAC-level access control, defines Extensible

Authentication Protocol (EAP) over LANs (WAPOL). The standard encapsulates and

leverages much of EAP, which was defined for dial-up authentication with Point-to-

Point Protocol in RFC 2284. Beyond encapsulating EAP packets, the 802.1x standard

also defines EAPOL messages that convey the shared key information critical for

wireless security.

LM Technologies LM809 LM809 WiFi USB Adapter(300Mbps) User Manual LM809 USER MANUAL V1 0

LM Technologies Ltd. LM809 WiFi USB Adapter(300Mbps) LM809 USER MANUAL V1 0

15_LM809-0647 UserMan

Navigation menu

Namespaces

Views

Navigation