FCC ID: O6M-WM302 PCMCIA Radio Card

B R O M A X C O M M U N I C A T I O N S , I N C . No.20, Kuang Fu Road, Hsin Chu Industrial Park, Hu Kou,Hsin Chu 303, Taiwan, R.O.C. TEL: +886-03-597-2988*8370 FAX: +886-03-568-3414 Inform Letter Dear Customer, According to FCCs regulation, the following Declaration of Conformity has to be made by a company located in USA. They are:

This device has been confirmed to be in compliance with the requirements of ANSI C63.4 & FCC part 15 regulations. The test result has been shown in the ADT test report with number RF910527R02. And this compliance is subject to the following two conditions:

This device may not cause harmful interference and, This device must accept any interference received, including interference that may cause undesired operation. This declaration can be a separate sheet and be sure that the following message will be also included in this declaration:

Product name, model name and trade name. Company name, and address of the one who is responsible for this declaration. Name, title, telephone and fax number as well as the signature of the contact person. Thanks for your attention.

11Mbps Wireless LAN Module User Manual Rev 0.9 Regulatory Compliance FCC 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 resi-

dential 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 in-

terference 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 or more of the following measures:

Reorient or relocate the receiving antenna.

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. Increase the separation between the equipment and receiver. You are cautioned that changes or modifications not expressly approved by the party responsible for compli-

ance could void your authority to operate the equipment. IMPORTANT NOTE:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation. This transmitter must not be co-located or operation in conjunction with any other antenna or transmitter Wireless LAN card user manual Table of contents Introduction Hardware installation CHAPTER 1 .................................................................................................... 1 1 Features ............................................................................................... 1 What is Wireless LAN? ........................................................................ 1 LAN Modes .......................................................................................... 2 Notes on wireless LAN configuration .................................................. 2 CHAPTER 2 .................................................................................................... 3 3 Hardware description .......................................................................... 3 Status LEDs.......................................................................................... 3 CHAPTER 3 .................................................................................................... 3 3 Iinstallation for Linux .......................................................................... 3 CHAPTER 4 .................................................................................................... 6 6 Configuration Utility............................................................................ 6 APPENDIX A .................................................................................................. 8 8 Q&A .................................................................................................... 8 APPENDIX B .................................................................................................. 9 Specifications ....................................................................................... 9 Installation for Embedded Linux System Using the Wireless Utility Troubleshooting ii Chapter 1 Introduction Thank you for using the Wireless LAN module. This high-speed Wireless LAN module provides you with an inno-

vative wireless networking solution for your embedded system. The module is easy to set up and use. With this innovative wireless technology, you can share files and printers on the networkwithout inconvenient wires! Now you can carry the LAN in your pocket!

This module is designed for 1. Wireless LAN Printer Server 2. Wireless LAN Ethernet Adapter 3. Wireless LAN Access Point / Gateway 4. Wireless LAN Router 5. Wireless LAN Broadband Router 6. Wireless LAN Presentation Gateway Features Wire-free access to networked resources from anywhere beyond the desktop Low interference & high susceptibility guarantee reliable performance Delivers data rate up to 11 Mbps Dynamically shifts between 11, 5.5, 2, and 1 Mbps network speed, based on signal strength, for maximum avail-

ability and reliability of connection Uses 2.4GHz frequency band, which complies with worldwide requirement Used on embedded operating systems Ensures great security by providing the Wired Equivalent Privacy (WEP) defined in the IEEE 802.11 standard What is Wireless LAN?

Wireless Local Area Network (WLAN) systems offer a great number of advantages over traditional wired sys-

tems. WLANs are flexible and easy to setup and manage. They are also more economical than wired LAN systems. Using radio frequency (RF) technology, WLANs transmit and receive data through the air. WLANs combine data connectivity with user mobility. For example, users can roam from a conference room to their office without being disconnected from the LAN. Using WLANs, users can conveniently access shared information, and network administrators can configure and augment networks without installing or moving network cables. WLAN technology provides users with many convenient and cost saving features:

Mobility: WLANs provide LAN users with access to real-time information anywhere in their organiza-

tion, providing service opportunities that are impossible with wired networks. Ease of Installation: Installing is easy for novice and expert users alike, eliminating the need to install network cables in walls and ceilings. Scalability: WLANs can be configured in a variety of topologies to adapt to specific applications and installations. Configurations are easily changed and range from peer-to-peer networks suitable for a small number of users to full infrastructure networks of thousands of users roaming over a broad area. 1 Wireless LAN card user manual LAN Modes Wireless LANs can be configured in one of two ways:

Ad-hoc Networking Infrastructure Networking Also known as a peer-to-peer network, an ad-hoc net-

work is one that allows all workstations and computers in the network to act as servers to all other users on the network. Users on the network can share files, print to a shared printer, and access the Internet with a shared modem. However, with ad-hoc networking, users can only communicate with other wireless LAN computers that are in the wireless LAN workgroup, and are within range. Infrastructure networking differs from ad-hoc network-

ing in that it includes an access point. Unlike the ad-

hoc structure where users on the LAN contend the shared bandwidth, on an infrastructure network the access point can manage the bandwidth to maximize bandwidth utilization. Additionally, the access point enables users on a wire-

less LAN to access an existing wired network, allowing wireless users to take advantage of the wired networks resources, such as Internet, email, file transfer, and printer sharing. Infrastructure networking has the following advantages over ad-hoc networking:

Extended range: each wireless LAN computer within the range of the access point can commu-

nicate with other wireless LAN computers within range of the access point. Roaming: the access point enables a wireless LAN computer to move through a building and still be connected to the LAN. Wired to wireless LAN connectivity: the access point bridges the gap between wireless LANs and their wired counterparts. Notes on wireless LAN configuration When configuring a wireless LAN (WLAN), be sure to note the following points:

Optimize the performance of the WLAN by ensuring that the distance between access points is not too far. In most buildings, WLAN cards operate within a range of 100 ~ 300 feet, depending on the thick-

ness and structure of the walls. Radio waves can pass through walls and glass but not metal. If there is interference in transmitting through a wall, it may be that the wall has reinforcing metal in its structure. Install another access point to circumvent this problem. Floors usually have metal girders and metal reinforcing struts that interfere with WLAN transmission. 2 Chapter 2 Hardware installation This chapter covers how to installing the wireless LAN module in your embedded system. Hardware description The Wireless LAN Module has a standard PCMCIA 68-pin connector for attaching to the PCMCIA port of em-

bedded system. And this module has MMCX connector to connect to external antenna. Status LEDs The following table describes the meaning of the LEDs:

LED PWR LINK MEANING Indicates that the Card is powered on. Indicates link status. It is normally blinking. When blink-

ing, indicates that the card is scanning the channels, and the link is not active. When lit, indicates that the card is locked to a channel, and the link is active. Chapter 3 Installation for Embedded Linux System Following is a example to install the module to a embedded Linux system. installation for Linux Follow the steps below to install the Wireless LAN card drivers (wlan-ng v0.1.6) for Linux. Before Installing the Linux Drivers Before you install the Linux wlan-ng v0.1.6 drivers, you need the PCMCIA module source code. If you do not have the source code, you can get it from the following URL:

ftp://hyper.stanford.edu/pub/pcmcia After you have rebuilt and installed the PCMCIA module, edit /etc/pcmcia/network.opts to enable DHCP. In the DHCP setup, you can leave the fields empty. If there is no DHCP server on your network, you might have to disable DHCP to use a static IP and then fill the fields in /etc/pcmcia/network.opts. In Linux there is an 802.11b Access Point with which the station can be associated. 3 Wireless LAN card user manual Installation Procedure 1. Unpack the tgz file by typing the following line at the shell prompt, (assuming the shell prompt is >).

>gzip -cd wlan-ng-0.1.6.tgz | tar xvf -

2. Configure and install wlan v0.1.6. Be sure to configure the build as Station (STA)do not choose Ac-

cess Point (AP) because there is no firmware available that supports the AP function.

>cd wlan-ng-0.1.6

>make config

>make all

>make install 3. Edit /etc/pcmcia/wlan-ng.conf by adding the following lines to the bottom of the file. card "PCMCIA 11M WLAN"

manfid 0x0274, 0x1601 bind "prism2_cs"

4. Edit /etc/pcmcia/wlan-ng.opts. The fields to edit are listed below:

dot11DesireSSID APSSID APCHANNEL 5. Restart your computer.

>shutdown -r now 4 Installation for Embedded Linux System When Linux is booting up, you will hear two high pitch beeps. This means that the driver has been loaded suc-

cessfully. If you want to know if the card has connected to an access point, see if the red ACT LED on the card is illuminated. When the ACT LED stops blinking, it means the card/station has been connected to an access point. 5 Chapter 4 Using the Wireless Utility This module also come with a wireless utility, following describe how to use the utility. Configuration Utility The following table describes the configuration utility:

State: displays the connection status. Current Channel: displays the chan-

nel. Current Tx Rate: displays the wire-

less bandwidth in megabits per second. Throughput: displays the transfer and receive rates in bytes per second. Link Quality: when connected to the wired LAN, displays the connection integrity. Signal Strength: when connected to the wired LAN, displays the signal strength. Note: Link quality and signal strength are not available when using a peer-

to-peer connection. Mode: displays the current LAN mode, either AdHoc or Infrastructure. SSID: displays a list of Service Set Identifications. Ethernet Conversion: displays a list of Ethernet conversion protocols. Tx Rate: displays a list of transfer rates. WEP: allows you to enable or disable Wired Equivalency Privacy (WEP) for encryption, with either 64- or 128-bit encryption. PS Mode: allows you to enable or disable power saving mode. Channel: enables you to select a transmission channel. 6 Using the Wireless Utility The Encryption window enables you to create an encryption scheme for Wireless LAN transmissions. Enter a passphrase and press Generate to automatically generate a 64- or 128-

bit key (selected from the WEP drop-

down menu in the Configuration screen). You can also manually enter a set of values for each key. Note: 128-bit encryption requires mo-

re system resources than 64-bit encryption. Use 64-bit encryption for better performance. This screen displays the version num-

ber of the Wireless LAN card and the Configuration Utility. 7 Appendix A Troubleshooting Q&A These guidelines give you tips to deal with some problems you may encounter while using the Wireless LAN module. Question: Can not connect to one of the clients in the network. Answer: First of all, make sure that all clients are up and running with a green Wireless Utility icon. And please check your TCP/IP setup is correct for your network. 8 Appendix B Specifications Standards Compliance:

Socket Interface:

Card Size:

Frequency:

Antenna:

Roaming:

Data Rate:

Modulation Technique:

Coverage Area:

Power:

Output Power:

Receiver Sensitivity:

Operating Environment:

IEEE802.11b WLAN Standard, PCMCIA 2.1 and JEIDA 4.2 Standard 68-pin 16-bit PCMCIA socket connector PCMCIA extended Type II 2.412 to 2.462GHz ( Industrial Scientific Medical Band ) Dipole Antenna 802.11 compliant 11Mbps / 5.5Mbps / 2Mbps / 1Mbps Direct Sequence Spread Spectrum BPSK / QPSK / CCK Close Space : 45m @ 11Mbps, 150m @ 5.5Mbps or lower DC +3.3V /+5V, 220mA (3.3V) 18.5dBm (typical)

-82dBm Min. Temperature: 0o to 55oC Humidity: 10% to 90%

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