FCC ID: PKW-WPC54A Wireless Network PC Card

WPC54A 802.11a PC Card Users Manual Draft v. 1.0 4 4 4 4 4 5 5 7 7 13 23 30 34 38 39 40 44 44 47 49 50 52 54 56 56 59 62 63 66 68 Table of Contents 1. INTRODUCTION 1.1 SCOPE 1.2 OBJECTIVES 1.3 INTENDED AUDIENCE 1.4 FEATURES 1.5 PACKAGE CONTENTS 1.6 SYSTEM REOUIREMENTS 2 WINDOWS 2000 2.1 DRIVER INSTALLATION (FIRST-TIME INSTALL) 2.2 DRIVER INSTALLATION (PREVIOUS DRIVER INSTALLED) 2.3 DRIVER INSTALLATION (EXISTING DK DRIVER INSTALLED) 2.4 DRIVER UNINSTALLATION 2.5 DEVICE CONFIGURATION Infrastructure Mode Ad Hoc Mode TCP/IP Setup 2.5.1 2.5.2 2.5.3 3 WINDOWS MILLENNIUM EDITION 3.1 DRIVER INSTALLATION 3.2 DRIVER UNINSTALLATION 3.3 DEVICE CONFIGURATION Infrastructure Mode Ad Hoc Mode TCP/IP Configuration 3.3.1 3.3.2 3.3.3 4 WINDOWS 98 SECOND EDITION 4.1 DRIVER INSTALLATION 4.2 DRIVER UNINSTALLATION 4.3 DEVICE CONFIGURATION Infrastructure Mode Ad Hoc Mode TCP/IP Setup 4.3.1 4.3.2 4.3.3 2 70 70 73 75 77 78 80 85 87 89 91 97 97 102 103 106 108 110 113 113 116 123 125 126 5 WINDOWS XP 5.1 DRIVER INSTALLATION (FIRST-TIME INSTALL) 5.2 DRIVER UNINSTALLATION 5.3 DEVICE CONFIGURATION Infrastructure Mode Ad Hoc Mode TCP/IP Setup 5.3.1 5.3.2 5.3.3 5.4 WINDOWS XP WIRELESS LAN NETWORK CONFIGURATION 5.4.1 5.4.2 5.4.3 Connect to an Available Wireless LAN Network Infrastructure Mode Ad hoc mode 6 WINDOWS NT 4.0 6.1 DRIVER INSTALLATION AND TCP/IP SETUP 6.2 DEVICE CONFIGURATION Infrastructure Mode Ad Hoc Mode Verify Connection 6.2.1 6.2.2 6.2.3 6.3 DRIVER UN-INSTALLATION 7 LINKMON 7.1 INSTALLATION 7.2 FEATURES 8 COUNTRY CODE SELECTOR 9 TROUBLESHOOTING APPENDIX A -- CHANNEL AND DATA RATE SELECTION 3 1 Introduction 1.1 Scope This user's guide provides the necessary information for first-time users to successfully install the 802.11a Network Driver Interface Specification (NDIS) driver, for the purpose of evaluating and/or operating the 802.11a Station in a Microsoft Windows environment. This guide also provides information for users who wish to upgrade the 802.11a NDIS driver from previous releases. 1.2 Objectives This guide describes the steps required to install NDIS drivers for the 802.11a Wireless LAN Network Adapter in Windows 2000, Windows Millennium Edition, Windows 98 Second Edition, Windows XP, and Windows NT 4.0. This guide also includes detailed instructions for configuring the PC Card device, or IEEE 802.11a station (STA) to interact with an access point (AP) in infrastructure mode and with other STAs in ad hoc mode. Instructions for installing or upgrading the diagnostic utility LinkMon are also included. You should also read this before proceeding to install the 802.11a Wireless LAN Network Adapter and NDIS driver in the targeted operating system (OS) environment. 1.3 Intended Audience This document is intended for 802.11a customers who wish to install and evaluate the 802.11a PC Card in the supported Microsoft Windows environments. 1.4 Features The 802.11a Wireless LAN Network Adapter is an IEEE 802.11a two-chip solution reference design based on the 802.11a AR5110 and AR5210 chipset. This reference design implements a half-duplex, Orthogonal Frequency Division Multiplexing (OFDM) baseband processor supporting all IEEE 802.11a data rates (6 to 54 Mbps). It also supports the 802.11a Turbo ModeTM supporting data rates up to 72 Mbps. The host interface is compliant with the PC Card 7. 1 standard. 4 1.5 Package Contents Make sure the following materials are available before you begin:

 802.11a CD, or electronic equivalent

 802.11a Wireless LAN Network Adapter 1.6 System Reguirements

 Laptop PC containing:

32-bit CardBus slot (or Desktop PC with PC Card-PCI adapter) 32 MB memory or greater 300 MHz processor or higher

 Microsoft Windows 2000/Windows Millennium Edition/Windows 98 Second Edition/Windows XP/Windows NT 4.0 (with Service Pack 6) 5 2 Windows 2000 2.1 Driver Installation (First-time Install) We recommend that you remove any existing 802.11a drivers on the PC system before installing the new Version release of the NDIS driver. See Section 2.4 for the instructions on how to remove previous driver releases. Insert the 802.11a Wireless LAN Network Adapter into a 32-bit CardBus Slot and follow these steps to install the NDIS driver:

1. Wait for the following dialog box to display, and click Next to continue. 6 2. Choose "Search for a suitable driver for my device (recommended)," and click Next. 3. Insert the CD in your CD-ROM drive. Choose "Specify a location" under "Optional search locations, and click Next to continue. 7 8 4. Browse to the location where the NDIS driver is located (assuming D: is the CD-ROM drive), the default folder is D: \ndis\bin\production\ndis Click OK to continue. 5. When you find the 802.11a driver installation file (net5210b.inf), click Next to continue. 9 6. The 802.11a NDIS evaluation driver currently does not have a digital signature from Microsoft. Therefore, Windows 2000 shows a warning message. Click Yes to proceed with driver installation. 7. Click Finish to complete the driver installation. See Section 2.5 for the device configuration. 10 2.2 Driver installation (Previous Driver Installed) If the system already has a previous release of the 802.11a NDIS installed, Windows does not prompt for the device driver when the WLAN Card is inserted. Follow the steps below to update NDIS driver:

1. Start System Properties from Control Panel. Under Hardware tab, click Device Manager. 11 2. Within Device Manager, right-click "802.11a Wireless LAN Network Adapter" under

"Network adapters" device node, and click Properties. 12 3. Click "Update Driver..." from the Driver tab. Note the Driver Version that you are updating from. You may need to verify this field again after driver update completes to make sure the driver has been updated correctly. 13 4. Click Next to continue. 14 5. Choose "Display a list of the known drivers for this device so that I can choose a specific driver," and click Next to continue. 15

6. Insert CD into your CD-ROM drive. Click "Have Disk..." to continue. 7. Browse to the location where the NDIS driver is located (assuming D is the CD-ROM drive), the default folder is "D:\ndis\bin\production\ndis5". Click OK to continue. 16 8. Select "802.11a Wireless LAN Network Adapter" from the list and click Next to continue. 9. Click Yes to continue when Windows displays the warning message. 17 10. Click Next to proceed with installation. 11. The 802.11a NDIS evaluation driver currently does not have a digital signature from Microsoft. Therefore, Windows 2000 shows a warning message. Click Yes to proceed with driver installation. 18 12. Click Finish. 19 13. Note that Driver Version should display 1.2 as the major revision number. Click OK to continue. 14. Click Yes to restart system. 20 15. After system restarts, the "802.11a Wireless LAN Network Adapter" now displays under

"Network Adapters" in the Device Manager. Proceed to Section 2.5 for device configuration information. 21 2.3 Driver Installation (Existing DK Driver Installed) If the system already has the 802.11a Diagnostic Kernel (DK) installed, Windows does not prompt for the device driver when the WLAN Card is inserted. Follow these steps to switch from the DK driver to the NDIS driver:

1. Start System Properties from Control Panel. Under Hardware tab, click Device Manager. 2. Within Device Manager, right-click "802.11a Diagnostic Kernel Driver" under "802.11aDK"

device node, and click Properties. 22 3. Click "Update Driver..." from the Driver tab. 4. Click Next to continue. 23 5. Choose "Search for a suitable driver for my device (recommended)," and click Next to continue. 6. Insert the CD into your CD-ROM drive. Choose "Specify a location" under "Optional search locations," and click Next to continue. 24 7. Browse to the location where the NDIS driver is located (assuming D: is the CD-ROM drive), the default folder is "D:\ndis\bin\production\ndis5". Click OK to continue. 8. Ensure the "Install one of the other drivers" check box is checked, and click Next to continue. 25

9. A list of available device drivers displays on the screen. Choose "802.11a Wireless LAN Network Adapter," and click Next to continue. 10. The 802.11a NDIS evaluation driver currently does not have a digital signature from Microsoft. Therefore, Windows 2000 shows a warning message. Click Yes to proceed with driver installation. 26 11. Click Finish. 12. The "802.11a Wireless LAN Network Adapter" now displays under "Network Adapters" in the Device Manager. Proceed to Section 2.5 for device configuration information. 27 13. To revert back to the DK driver, follow the instructions given in the Diagnostic Kernel (DK):

Script Programming Interface document. 2.4 Driver Uninsfallafion This section provides information about uninstallation procedures required for upgrading the NDIS driver from previous 802.11a software releases. If the system does not have previously installed versions of the NDIS driver and you wish to remove the newly installed driver from the system, proceed to Step 4. The NDIS driver since Release 1.0 no longer leverages the Transport Driver Interface (TDI) protocol to provide the LinkMon programming interface, the TDI protocol should be uninstalled. Follow these steps to uninstall the TDI protocol:

1. Go to "Network and Dial-up Connections" in the Control Panel. 2. Right-click the 802.11a Wireless LAN Network Adapter "Local Area Connection" icon and choose Properties. 28 3. Choose "802.11a NIC Access TDI" and click Uninstall. 4. Click Yes to confirm the uninstallation of the TDI interface. 5. To remove the NDIS driver from the OS, go to Device Manager, right-click "802.11a Wireless LAN Network Adapter #4," and choose Uninstall. 29 6. Click OK to uninstall the device. 30 7. When the device is uninstalled from Device Manager, search for and delete the driver files that reside in the system. To do so, go to the Start menu and choose "Search For Files or Folders...," enter "oem*.inf" in the "Search for files or folders named:" field, and enter

"802.11a" in the "Containing text:" field. Click Search Now, two files matching these criteria are displayed. Choose the files that have been found and delete them from the system. 8. To complete the uninstallation, two driver binary files, "ar52l0b.sys" and "athtdint.sys", should also be removed from the "\WINNT\system32\drivers" folder. 31 9. If there is a file named "athnic.ini" in the "\WINNT\system32\drivers" folder, delete it. 32 2.5 Device Configuration Configuration of the 802.11a Wireless LAN Network Adapter can be done through the Network Control Panel (NCP) in adapter properties. You can set the Wireless Network Adapter to work in one of two modes, either infrastructure mode (Which leverages an AP) or ad hoc mode (which consists of a group of stations participating in the WLAN). In infrastructure mode, the Wireless LAN Network Adapter participates in a basic service set (BSS) as a station, and communicates with the other stations through an AP, as illustrated in Figure 1. In ad hoc mode, a Wireless LAN Network Adapter works within an independent basic service set

(IBSS), as illustrated in Figure 2. All stations communicate directly with other stations without an AP. 33 To configure the 802.11a Wireless LAN Network Adapter:

1. In the Device Manager, right-click "802.11a Wireless LAN Network Adapter," and click Properties to access the properties of the adapter. 34 2. Configuration additions, modifications, and deletions are made under the "Settings"

tab of the "802.11a Wireless LAN Network Adapter" properties. Select one of the configurations under the configuration list, and click Modify to show the "Network Configuration Settings" screen. This property sheet has two pages: General and Security. The General page has the following fields:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): This is the name of the IEEE 802.11a Wireless LAN Network, for example, "802.11 Wireless LAN Network." This field has a maximum limit of 32 characters. Network Connection: This field defines whether the STA is configured for an ad hoc or infrastructure network. Power Saving: This field allows the configuration of power management options. The options are Off, Normal and Maximum. Power management is disabled when ad hoc mode is selected in the Network Connection field. When the Power saving setting is Off, the adapter receives full power from the PC. When the Power Saving setting is Normal, the driver turns off power to the adapter for brief periods over briefly-spaced time intervals. When the Power Saving setting is Maximum, the driver turns off power to the adapter for longer periods over more widely-spaced time intervals. Turbo Mode: This field enables or disables 802.11a turbo mode. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to be selected. Typically, an LAA is not required, because as the driver automatically loads a unique, globally administered address from the EEPROM. 35

3. The next tab on this property sheet allows for the selection of security features. The fields on this page are as follows:

Enable Security: This field completely enables or disables the IEEE 802.11 wired equivalent privacy (WEP) security feature. Default Encryption Key: This field defines the type of encryption key to use (either Unique Key or Shared Keys). This field allows you to select only a key (Unique, First, Second, Third, or Fourth) whose corresponding field has been completed. Unique Key: This field defines the unique encryption key for security for the current network configuration. In ad hoc mode, this encryption key type is not used. To enable security using a Unique Key, this field must be populated. Shared Keys: These fields define a set of Shared encryption keys. To enable security using Shared Keys, at least one Shared Key field must be populated. Key Length: This field defines the length for each encryption key. As the Key Length is changed, the number of available characters in the field is changed automatically. If after a key is entered the length is adjusted to a smaller number, the key is automatically truncated to fit. If the length is increased again, the field is not automatically updated to its previous value. 36 All encryption key fields are displayed only when initially entered. On subsequent entry into the security property page, the fields are masked. The keys must be entered as hexadecimal digits. 2.5.1 Infrastructure Mode To configure an 802.11a Wireless LAN Network Adapter in infrastructure mode:

1. Ensure that the "Locally Administered Address" checkbox is unchecked 2. Choose the following settings:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): This is the name of the IEEE 802.11a Wireless LAN Network, for example, "802.11a Wireless LAN Network." This field has a maximum limit of 32 characters. If this field is left blank, the STA connects to the AP with the best signal strength. Network Connection: AP (infrastructure). Power Saving: This field allows the configuration of power management options. The options are Off, Normal, and Maximum. Turbo Mode: This field enables or disables 802.11a turbo mode. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to he selected. Usually infrastructure mode is used in an enterprise environment where APs are installed and maintained by corporate IT staff. Much of the data in the enterprise network is confidential. It is important to configure security to make sure only stations with appropriate keys can receive sensitive data. The 802.11a Wireless LAN Network Adapter and NDIS driver support key lengths of 40 bits, 104 bits, and 128 bits. Typically, the appropriate encryption and decryption keys are supplied by the corporate IT staff. 37 2.5.2 Ad Hoc Mode An ad hoc network usually is a short-lived network with a small number of stations. The network is usually created for a special purpose such as exchanging data between friends, or between customer and client. Because the duration of the ad hoc network tends to be limited, Power Saving and Security features are not typically a requirement. For ad hoc network activity, the Power Saving and Security features can be disabled. Currently, shared key security is supported in ad hoc mode. Future 802.11a software implementations will provide unique key support. In ad hoc mode, a station scans the air for an existing BSS. If no BSS is found, the station establishes a BSS for other stations to join. When other stations scan the air and find an established BSS in place, they join that BSS to form an ad hoc network. If a specific set of stations requires ad hoc network connectivity, it is recommended to have one station establish a BSS first before configuring the remaining stations. This prevents the scenario of several stations trying to form a BSS at the same time, which can result in multiple singular BSSs being established, rather than a single BSS with multiple stations.

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): A Network Name is mandatory for ad hoc mode. The SSID for all stations in a single ad hoc network must be the same. Network Connection: Ad Hoc. Power Saving: Power saving mode is not currently supported in an ad hoc network. Turbo Mode: All stations participating in the ad hoc network must have the same rate setting. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to be selected. 38 2.5.3 TCP/IP Setup After configuring the 802.11a Wireless LAN Network Adapter through the Network Control Panel, the TCP/IP address for the network device must be configured. 1. Open the "Control Panel" and click "Network and Dial-up Connections."

2. Find the "Local Area Connection" that is associated with the 802.11a Wireless LAN Network Adapter. Right-click that connection, and click Properties. 3. Select "Internet Protocol (TCP/IP)" and click Properties. 4. Click "Use the following IP address" and input an IP address and Subnet mask. Assigning an LP address and Subnet mask allows stations to operate in infrastructure mode and to have Internet access. "Default gateway" and "DNS server" information is also required. IP configuration information (DHCP or assigned IP address, Gateway and DNS server IP addresses) is usually obtained from the corporate IT staff. 5. After obtaining IP configuration information from the appropriate IT staff, Click OK in both

"Internet Protocol (TCP/IP) Properties" and "Local Area Connection Properties" to complete the IP configuration. 39 6. Click Start, Programs, Accessories, and Command Prompt to open the DOS command prompt window. Type "ipconfig" at the C:\> prompt to determine if the TCP/IP configuration has taken effect. To test IP connectivity in ad hoc or infrastructure mode, use the "ping

<ipaddress>" command. When a TCP/IP connection is established, the LinkMon utility (See Section 6) can be used to monitor the 802.11a Wireless LAN Network Adapter operating status. 40 7. To map the drive on another machine to your computer, right-click "My Computer" and click

"Map Network Drive...."

41 42 8. After mapping the drive, you can perform file transfers, use video streaming applications, and all other network data transfers that are normally performed with wired 10/100 Ethernet connections. 43 3 Windows Millennium Edition 3.1 Driver Installation We recommends that you remove any existing 802.11a NDIS driver on the PC system before installing Version 1.2 release of the NDIS driver. See Section 3.2 for the instructions on how to remove previous driver releases. When the system no longer has the 802.11a NDIS driver installed, insert the Wireless LAN Network Adapter into a 32-bit CardBus slot, and follow these steps to install the NDIS driver:

1. Wait for the following dialog box to appear. Choose "Specify the location of the driver

(Advanced)," and click Next to continue. 44 2. Choose "Search for the best driver for your device. (Recommended)" and select "Specify a location." Click Browse to locate the NDIS driver. The default folder is "D:\ndis\bin\production)

(assuming D: is the CD-ROM drive). Click Next to continue. 45 3. When the 802.11a driver installation file (NET5210B.INF) has been found, click Next to continue. 4. Click Finish to continue, and restart the system to complete driver installation. Refer to Section 3.3 for device configuration. 46 3.2 Driver Uninstallation This section provides uninstallation procedures for removing the 802.11a NDIS driver from the system. Uninstallation is recommended for upgrading the NDIS driver from previous 802.11a driver releases. 1. To remove the NDIS driver from the OS, go to "Start Menu"  "Search"  "Find Files or Folders...," and search for the INF file containing the "802_11a" text string under the

\WINDOWS\INF folder. Be sure to include subfolders in the search criteria. When

"802_11a.inf" has been found, delete it by right-clicking the file and choose Delete. 47 2. From Control Panel, launch the System Properties window. Select "802.11a Wireless LAN Network Adapter" from Device Manager, and click Remove to uninstall the device. 3. Click OK to confirm the removal of the device. Restart the system to complete un-installation. 48 49 3.3 Device Configuration Configuration of the 802.11a Wireless LAN Network Adapter can be done through the 802.11a NIC Configuration utility found in the Windows Control Panel. Similar to Windows 2000 the device can be set to work in one of two modes: infrastructure mode or ad hoc mode. Please refer to Section 2.4 for more details on these network connection types. To launch the configuration utility, go to Control Panel and double-click on the 802.11a NIC Configuration icon. The configuration utility allows addition, modification, and deletion of the configuration profiles. Select one of the existing configuration profiles under the configuration list to modify or click New to add a new configuration profile. Follow Section 3.3.1 and Section 3.3.2 to set up the station to work in infrastructure mode and ad hoc mode. 50 3.3.1Infrastructure Mode This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in infrastructure mode. See Section 2.4 for detailed descriptions of each option in the Network Configuration Settings. 1. Under the "General" tab, make sure the "Locally Administered Address" checkbox is unchecked. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): This is the name of the IEEE 802.11a Wireless LAN Network. This field has a maximum limit of 32 characters. If this field is left blank, the STA connects to the AP with the best signal strength. Network Connection: AP (Infrastructure) Power Saving: This field allows the configuration of power management options. The options are Off, Normal, and Maximum. Turbo Mode: This field enables or disables 802.11a turbo mode.

51 2. Usually, infrastructure mode is used in an enterprise environment where APs are installed and maintained by corporate IT staff. Much of the data in the enterprise network is confidential. It is important to configure security to make sure only stations with appropriate keys can receive sensitive data. The 802.11a Wireless LAN Network Adapter and NDIS driver support key lengths of 40 bits, 104 bits and 128 bits. Typically, the appropriate encryption and decryption keys are supplied by the corporate IT staff. 52 3.3.2 Ad Hoc Mode This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in ad hoc or IBSS mode See Section 2.4.2 for description of ad hoc operation. 1. Similar to the set-up of AP Infrastructure mode described in the previous section, ad hoc mode is also configured by changing the options in the Network Configuration Settings of the 802.11a NIC Configuration utility. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique Configuration names are case insensitive. Network Name (SSID): A Network Name is mandatory far ad hoc mode. The SSID for all stations in a single ad hoc network must be the same. Network Connection: Ad Hoc. Power Saving: Power saving mode is not currently supported in an ad hoc network. Turbo Mode: All stations participating in the ad hoc network must have the same rate setting. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to be selected.

53 2. You can optionally set up other properties, bur because the duration of the ad hoc network tends to be limited, Power Saving and Security features are not typically a requirement. For ad hoc network activity, the Power Saving and Security features can be disabled. Currently, shared key security is supported in ad hoc mode. Future 802.11a software implementations will provide unique key support. 3. Click OK when the properties are set correctly. The system needs to reboot in order for the changes to take effect. Note that in ad hoc mode, a station scans the air for an existing BSS. If no BSS is found, the station establishes a BSS for other stations to join When other stations scan the air and find an established BSS in place, they join that USS to farm an ad hoc network if a specific set of stations requires ad hoc network connectivity, it is recommended to have one station establish a BSS first before configuring the remaining stations. This prevents the scenario of several stations trying to farm a BSS at the same time, which can result in multiple singular BSSs being established, rather than a single BSS with multiple stations. 54 3.3.3 TCP/IP Configuration After configuring the 802.11a Wireless LAN Network Adapter network adapter properties, the TCP/IP address for the network device needs to be configured. 1. From Control Panel, launch the Network properties window. Select TCP/IP 802.11a Wireless LAN Network Adapter" and click Properties. Depending on the type of network the station connects to, Gateway and DNS Configuration information can also be required. IP configuration information (DHCP or assigned IP address, Gateway and DNS server IP addresses) is usually obtained from the corporate IT staff. For a simple demonstration, the station is assigned a static IP address. From "TCP/IP Properties," choose "IP Address" and select "Specify an IP address." Input an IP address and subnet mask. Assigning an IP address and subnet mask allows the station to interact with the AP or other stations in the same IP subnet. Click OK to complete the TCP/IP configuration, and restart the system for the changes to take effect. 55

2 Click "Start, " "Programs", "Accessories", and "Command Prompt" to open the DOS command prompt window. Type "ipconfig" to determine if the TCP/IP configuration has taken effect. To test IP connectivity in ad hoc or infrastructure mode, use the "ping <ipaddress>"

command. When a TCP/IP connection is established, the LinkMon utility (see Section 6) can be used to monitor the 802.11a Wireless LAN Network Adapter operating status. 3 To map the drive on another machine to your computer, right-click "My Computer" and click

"Map Network Drive." Specify the path of a network-shared folder. 4 After mapping the drive, you can perform file transfers, video streaming, and all other network data transfers that are normally performed with wired 10/100 Ethernet connections. 56 4 Windows 98 Second Edition 4.1 Driver installation Atherus recommends that you remove any existing 802.11a NDIS driver on the PC system before installing Version 1.2 release of the NDIS driver. See Section 4.2 for the instructions on how to remove previous driver releases. When the system no longer has the 802.11a NDIS driver installed, insert the Wireless LAN Network Adapter into a 32-bit CardBus slot, and follow these steps to install the NDIS driver:

1. Wait far the following dialog box to appear, and click Next to continue. 57 2. Choose "Search for the best driver for your device (Recommended)," and click Next. 3. Insert the 802.11a Software Release CD in your CD-ROM drive Choose "Specify a location"

and browse to the location where the NDIS driver is located. The default folder is D:\ndis\bin\production (assuming D: is the CD-ROM drive). Click Next to continue. 58 4. When the 802.11a driver installation file (802_11a.inf) has been found, click Next to continue. 5. Click Finish to continue. 59 6. Click Yes to restart the system and complete driver installation. See Section 4.3 for device configuration. 4.2 Driver Uninstallation This section provides uninstallation procedures for removing the 802.11a NDIS driver from the system. Uninstallation is recommended for upgrading the NDIS driver from previous 802.11a driver releases. 1. To remove the NDIS driver from the OS, go to "Start Menu" "Search" "Find Files or Folders...," and search for the INF file containing the "802_11a" text string under the

\WINDOWS\INF folder. Be sure to include subfolders in the search criteria. 60 2. When "802_11a.inf" has been found, delete it by right-clicking the file and choose "Delete."

61 3. From Control Panel, launch the Network properties window. Select 802.11a Wireless LAN Network Adapter from the list, and click Remove to uninstall the device. 4. Click OK to confirm the removal of the device. Restart the system to complete uninstallation. 62 4.3 Device Configuration Configuration of the 802.11a Wireless LAN Network Adapter can be done through the 802_11a NIC Configuration utility found in the Windows Control Panel. Similar to Windows 2000 the device can be set to work in one of two modes: infrastructure mode or ad hoc mode. Please refer to Section 2.5 for more details on these network connection types. To launch the configuration utility, go to Control Panel and double-click on the 802_11a NIC Configuration icon. The configuration utility allows addition, modification, and deletion of the configuration profiles. Select one of the existing configuration profiles under the configuration list to modify or click New to add a new configuration profile. Follow Section 4.3.1 and Section 4.3.2 to set up the station to work in infrastructure mode and ad hoc mode. 63 Infrastructure Mode 4.3.1 This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in infrastructure mode. See Section 2.4 for detailed descriptions of each option in the Network Configuration Settings. 1. Under the "General" tab, make sure the "Locally Administered Address" checkbox is unchecked. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): This is the name of the IEEE 802.11a Wireless LAN Network. This field has a maximum limit of 32 characters. If this field is left blank, the STA connects to the AP with the best signal strength. Network Connection: AP (Infrastructure) Power Saving: This field allows the configuration of power management options. The options are Off, Normal, and Maximum. Turbo Mode: This field enables or disables 802.11a turbo mode.

64 65 2. Usually, infrastructure mode is used in an enterprise environment where APs are installed and maintained by corporate IT staff. Much of the data in the enterprise network is confidential. It is important to configure security to make sure only stations with appropriate keys can receive sensitive data. The 802.11a Wireless LAN Network Adapter and NDIS driver support key lengths of 40 bits, 104 bits and 128 bits. Typically, the appropriate encryption and decryption keys are supplied by the corporate IT staff. 66 4.3.2 Ad Hoc Mode This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in ad hoc or IBSS mode. See Section 2.4.2 for descriptions of ad hoc operation. 1. Similar to the setup of the AP infrastructure mode described in the previous section, ad hoc mode is also configured by changing the Network Configuration Settings of the 802_11a NIC Configuration utility. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. Network Name (SSID): A Network Name is mandatory for ad hoc mode. The SSID for all stations in a single ad hoc network must be the same. Network Connection: Ad Hoc. Power Saving: Power saving mode is not currently supported in an ad hoc network. Turbo Mode: All stations participating in the ad hoc network must have the same rate setting. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to be selected.

2. You can optionally set up other properties, but because the duration of the ad hoc network tends to be limited, Power Saving and Security features are not typically a requirement. For ad hoc network activity, the Power Saving and Security features can be disabled. Currently, shared key security is supported in ad hoc mode. Future 802.11a software implementations will provide unique key support. 3. Click OK when the properties are set correctly. The system needs to reboot in order for the changes to take effect. 67 TCP/IP Setup 4.3.3 After configuring the 802.11a Wireless LAN Network Adapter network adapter properties, the TCP/IP address for the network device needs to be configured. 1. From Control Panel, launch the Network properties window. Select "TCP/IP 802.11a Wireless LAN Network Adapter" and click Properties. Depending on the type of network the station connects to, Gateway and DNS Configuration information can also be required. IP configuration information (DHCP or assigned IP address Gateway and DNS server IP addresses) is usually obtained from the corporate IT staff. For a simple demonstration, the station is assigned a static IP address. From "TCP/IP Properties," choose "IP Address" and select "Specify an IP address." Input an IP address and subnet mask. Assigning an IP address and Subnet mask allows the station to interact with the AP or other stations in the same IP subnet. Click OK to complete the TCP/IP configuration, and restart the system for the changes to take effect. 68 2. Click "Start," "Programs," "Accessories," and "Command Prompt" to open the DOS command prompt window. Type "ipconfig" to determine if the TCP/IP configuration has taken effect. To test IP connectivity in ad hoc or infrastructure mode, use the "ping <ipaddress>" command. When a TCP/IP connection is established, the LinkMon utility (see Section 6) can be used to monitor the 802.11a Wireless LAN Network Adapter operating status. 3. To map the drive on another machine to your computer, right-click "My Computer" and click

"Map Network Drive...." Specify the path of a network-shared folder. 4. After mapping the drive, you can perform file transfers, video streaming, and all other network data transfers that are normally performed with wired 10/100 Ethernet connections. 69 5 Windows XP 5.1 Driver Installation (First-time Install) We recommends that you remove any existing 802.11a drivers on the PC system before installing Version 1.2 release of the NDIS driver. See Section 5.2 for the instructions on how to remove previous driver releases. With no existing 802.11a NDIS driver installed, insert the 802.11a Wireless LAN Network Adapter into a 32-bit CardBus slot, and follow these steps to install the NDIS driver:

1 Wait for the following dialog box to appear. Choose "Install from a list or specific location

(Advanced)," and click Next to continue. 70 2. Under Search for the best driver in these locations, choose Include this location in the search and click Browse to find the location of the NDIS driver. When the driver location has been identified, click Next to continue. 71 3.The 802.11a NDIS evaluation driver currently does not have a digital signature from Microsoft. Therefore, Windows XP shows a warning message. Click Continue Anyway to proceed with driver installation. 4. Click Finish to complete driver installation, and refer to Section 5.3 for device configuration. 72 5.2 Driver Uninstallation This section provides uninstallation procedures for removing the 802.11a NDIS driver from the system. Uninstallation is recommended for upgrading the NDIS driver from previous 802.11a driver releases. 1. To remove the NDIS driver from the OS, go to Device Manager, right click 802.11a Wireless LAN Network Adapter, and choose Uninstall. 2. Click OK to uninstall the device. 73 3. When the device is uninstalled from Device Manager, search for and delete the driver installation file that resides in the system. To do so, go to "Start" and choose "Search" "All files and folder," enter "oem*.inf" in the "All or part of the file name" field, and enter "802_11a"

in the "A word or phrase in the file" field. Enter "C:\WINDOWS\INF" in the "Look in" field, where C: is the drive letter of where Windows XP is installed. Click Search to find the driver installation file. 4. A file matching the search criteria is displayed. Choose this file and delete it fro the system. 74 75

You can change the order of the preferred networks by selecting the Wireless LAN Network that you want to reposition on the list, and then clicking Move up or Move down. You can change the Wireless LAN Network connection settings of a preferred network by selecting the Wireless LAN Network, clicking Properties, and then changing the settings as needed. To remove a Wireless LAN Network from the list of preferred networks, select the Wireless LAN Network that you want to remove, and then click Remove. 96 If a network is not defined in the preferred networks list, but you know it is available and you want to automatically connect to it, then click Advanced in the Wireless LAN Networks tab, and select the Automatically connect to non-preferred networks check box. 97 6. Windows NT 4.0 6.1 Driver installation and TCP/IP Setup Windows NT 4.0 does not support Plug-and-plug. Therefore, the 802.11a NDIS driver installation uses an approach that is different from the installation used in other Operating Systems. In order to install 802.11a Wireless LAN Network Adapter in Windows NT 4.0, a PC Card utility called CardWizard is used. If your computer system does not have CardWizard utility pre-loaded then you can purchase it from SystemSoft Corporation (www.svstemsoft.com) or you can download a 14-day evaluation copy from ftp://www.systemsoft.com/pub/Wn51tren.exe. Note that CardWizard requires Windows NT 4.0 Build 1381 (Service Pack 6) installed in order to function correctly. Please install Service Pack 6 if your Windows NT 4.0 is not updated After CardWizard utility is loaded, insert the 802.11a Wireless LAN Network Adapter into a 32-bit CardBus slot, and follow these steps to install the NDIS driver: 1. 1. CardWizard will detect the insertion of the 802.11a CardBus card and show the following screen. Click Correct to Continue. 98 2. Click OK to continue. 3. Windows NT 4.0 Network Properties windows displays. Click Add to continue. 99 4. Click Have Disk. 5. Manually enter the location of where the 802.11a NDIS 4.0 driver is located. For example, D:\NDIS\BIN\NDIS4. Click OK to continue. 100 6. Make sure 802.11a Wireless LAN Network Adapter is selected. Click OK to continue. 7. Set Map Registers value to 256 (default value) and click Continue. 101 8. Windows NT 4.0 binds TCP/IP protocol to 802.11a Wireless LAN Network Adapters and TCP/IP properties have to be entered. Depending on the type of network the station connects to, Gateway and DNS Configuration information may also be required. IP configuration information (DHCP or assigned IP address, Gateway and DNS server IP addresses) is usually obtained from the corporate IT staff. For a simple demonstration, the station is assigned a static 1P address. Choose "Specify an IP address" and enter an IP address and subnet mask. Assigning an IP address and subnet mask allows the station to interact with the AP or other stations in the same IP subnet. Click OK to complete the TCP/IP configuration. 102 9. Restart the system for the changes to take effect. 6.2 Device Configuration Configuration of the 802.11a Wireless LAN Network Adapter can be done through the 802.11a NIC Configuration Control Panel applet . Similar to Windows 2000, the device can be set to work in one of two modes, either infrastructure mode or ad hoc mode. See Section 2.4 for more details on these network connection types. Start 802.11a NIC Configuration utility form the Control Panel. 103 Select one of the configuration(s) under the configuration list and click Modify or click New and follow the Section 6.2.1 and Section 6.2.2 to set up the station to work in infrastructure mode and ad hoc mode. 6.2.1 Infrastructure Mode This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in infrastructure mode. Refer to Section 2.4 for detailed descriptions of each option in the Network Configuration Settings. 1. Under the "General" tab, make sure the "Locally Administered Address" checkbox is unchecked. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. For example, "AP". Network Name (SSID): This is the name of the IEEE 802.1 la Wireless LAN Network. For example, "802.11apP". This field has a maximum limit of32 characters. If

104 this field is left blank, the STA will connect to the AP with the best signal strength. Network Connection: AP (Infrastructure) Power Saving: This field allows the configuration of power management options. The options are Off, Normal and Maximum. Turbo Mode: This field enables or disables 802.11a Turbo mode.

105 2. Usually, infrastructure mode is used in an enterprise environment where APs are installed and maintained by corporate IT staff. Much of the data in the enterprise network is confidential. It is important to configure security to make sure only stations with appropriate keys can receive sensitive data. The 802.11a Wireless LAN Network Adapter and NDIS driver support key lengths of 40-bits, 104-bits and 128-bits. Typically, the appropriate encryption and decryption keys will be supplied by the corporate IT staff. 106 6.2.2 Ad Hoc Mode This section defines the process of configuring an 802.11a Wireless LAN Network Adapter in ad hoc or IBSS mode. Refer to Section 2.4.2 for detail descriptions of ad hoc operation. 1. Similar to the set up of AP Infrastructure mode described in the previous section, ad hoc mode is also configured by changing the options in "Network Configuration Settings" window. Use the following information as a guideline to choose the values of each field in the configuration window:

Configuration Name: This field identifies the configuration. This name must be unique. Configuration names are case insensitive. For example, "Ad Hoc". Network Name (SSID): A Network Name is mandatory for ad hoc mode. The SSID for all stations in a single ad hoc network must be the same. Network Connection: Ad Hoc. Power Saving: Power saving mode is not currently supported in an ad hoc network. Turbo Mode: All stations participating in the ad hoc network must have the same rate setting. Locally Administered Address: This field defines the locally administered MAC address

(LAA). To enter a value in the address field, the check box needs to be selected. 107 2. You may optionally set up security features but it is not typically a requirement since the duration of the ad hoc network tends to be limited. Currently, only shared key security is supported in ad hoc mode. Future 802.11a software implementations will provide unique key support. 3. In ad hoc mode, a station will scan the air for an existing Basic Service Set (BSS). If no BSS is found, the station will establish a BSS for other stations to join. When other stations scan the air and find an established BSS in place, they join that BSS to form an ad hoc network. If a specific set of stations requires ad hoc network connectivity, it is recommended to have one station establish a BSS first before configuring the remaining stations. This will prevent the scenario of several stations trying to form a BSS at the same time, which may result in multiple singular BSSs being established rather than a single BSS with multiple stations. 108 Verify Connection 6.2.3 You may use LinkMon utility to monitor the operating status of 802.11a Wireless LAN Network Adapter once the STA is connected. Please refer to Chapter 7 for descriptions of LinkMon utility. If the STA is configured properly then you will be able to perform ping test as well as other network applications that a wired Ethernet device can perform. 1. Click Start, Programs, Accessories, and Command Prompt to open the Command prompt window. Type "ipconfig" to determine if the TCP/IP configuration has taken effect. To test IP connectivity in ad hoc or infrastructure mode, use the "ping <ipaddress>" command. 2. To map the drive on another machine to your computer, right-click My Computer and click Map Network Drive. 109 3. Specify the path of a network-shared folder. 4. After mapping the drive, you can perform file transfers, video streaming, and all other network data transfers that are normally performed with wired 10/100 Ethernet connections. 110 6.2 driver Un-installation This section provides uninstallation procedures for removing the 802.11a NDIS driver from the system. 1. To remove the NDIS driver from the system, go to Control Panel and open Network properties. 111 2. Under the Adapters tab, choose 802.11a Wireless LAN Network Adapter and click Remove. 3. Click OK to confirm the removal of the 802.11a Wireless LAN Network Adapter. 112 4. 802.11a Wireless LAN Network Adapter is no longer listed under the Adapters tab. Click Close to continue. 5. Restart the system to complete the un-installation of 802.11a NDIS 4.0 driver. 113 7. LinMon 7.1 Installation LinkMon is a Graphical User Interface (GUI) program that provides detailed operational status and statistics for the 802.11a Wireless LAN Network Adapter. The LinkMon executable file, linkmon.exe, is included on the 802.11a Release Version 1.2 CD, and is in the folder:

\ndis\bin\production\. Copy this file from the CD to a local driver for execution. Since Windows 98 SE does not have native support for WMI, which is required to make LinkMon work correctly, an upgrade from Microsoft is needed. Use the procedures described in the following section to acquire and install the necessary WMI module from Microsoft. This is only required for Windows 98 SE installations. 1. Download WMI installer from Microsoft (wmi9x.exe) and save it to your hard disk. 2. Execute WMI installer by double-clicking wmi9x.exe. 114 3. Click Next to continue. 4. Click I accept this agreement and then click Next to continue. 115 5. Click Next to continue. 6. The installer now installs files to the SYSTEM directory. 7. The system must be rebooted for the WMI installation files to become effective. When the system completes the rebooting process, launch LinkMon. 116 7.2 Features There are five tabs in LinkMon used to display STA information:

General Tab Frame Statistics Tab Transmit Retries Tab Station Tab Driver Tab Under the General tab of the LinkMon program property sheet is general information about the program and its operations. Under the Frame Statistics tab is statistical information showing the number of frames being sent and received, retry count on frames sent, frame checksum error counts for received frames, and receive signal strength indicator (RSSI) information. These fields are described in the Station Programmer's Guide under Appendix A as OIDs. LinkMon supports most of the OIDs listed in that section. 117 Under the Transmit Retries tab is detailed transmit retry statistical information for transmitted frames. 118 119 Under the Station tab is detailed BSS information including SSID, BSSID, association status, operating channel frequency, and information about scanned APs. 120 Under the Driver tab is statistical data pertaining to NDIS driver operation. 121 The Action menu enables a NDIS driver unloading and reloading, and network interface card (NIC) reset. Note that driver unload option is not available in Windows Me, Windows 98SE, and Windows NT 4.0. NIC reset is also not available in Windows NT 4.0. 122 On the Options menu, click Settings. Under the Display tab, you can select the data display modes of Cumulative or Relative. Cumulative mode displays statistical LinkMon data collected from the beginning of driver load. Relative mode, displays differences in the statistical data since the last update. 123 Under the Log File tab, the logging function can be enabled to log to a file the statistical information collected by the LinkMon utility, for later reference or post processing by an application such as Microsoft Excel. 124 8 Country Code Selector Starting from Release 1.1, the 802.11a Wireless LAN Network Adapter has EEPROM locations allocated to store country code information. Currently, there are three countries available to select from -- United States, Canada, and Japan. These countries represent two regulatory domains, namely the FCC (USA and Canada) and TELEC (Japan). When the country code is changed, the NDIS driver scans only the legal frequency channels allowed in those countries. The country code selection utility is provided as part of the NDIS driver package in Release 1.2 to allow users to switch to different countries. This utility is located under \NDIS\BIN\ARCCSEL in the CD. Start Country Code Selector by running ARCCSEL.EXE and follow the steps below to change countries. 1. Make sure the 802.11a Wireless Netwok Adapter is listed under Network Card field. From the Country pull-down menu, choose the country that you want to switch to. 2. Click Yes to continue. 125 3. The country selection takes effect immediately. You can use LinkMon to verify the country that you selected by looking at the Regulatory Domain field in the Station tab. 126 9 Troubleshooting This chapter provides solutions to common problems that usually occur during the installation and operation of the 802.11a Wireless LAN Network Adapter. Read the following descriptions below if you are having problems. If you cannot find an answer here, please contact an field application engineer for assistance. 1. My computer does not recognize the 802.11a CardBus reference card. Make sure the CardBus card is properly inserted into a 32-bit CardBus slot. If Windows does not detect the hardware upon insertion of the card, the system could have a previous 802.11a NDIS driver installed. Remove the old driver and try again. 2. The 802.11a Wireless LAN Network Adapter does not work properly after the driver is installed. Re-insert the CardBus card into the slot. A beep should be heard if the adapter is properly inserted. Go to Device Manager and make sure the 802.11a Wireless LAN Network Adapter exists under the network adapters device node. If you see the yellow exclamation mark then there are conflicting resources. In this case, make sure the computer system has a free IRQ and make sure you have installed the proper driver. Uninstall the driver, restart the system, and repeat the driver installation steps if necessary. 3. Stations cannot associate in ad hoc mode. Make sure the Same Service set identifier is specified for all stations that need to join the same ad hoc network. Set up one station to establish a BSS and wait briefly before setting up other stations. This prevents several stations from trying to establish a BSS at the same time, which can result in multiple singular BSSs being established, rather than a single BSS with multiple stations associated to it. 4. The station cannot access the Internet in the infrastructure configuration. Make sure the station is associated and joined with the AP. If Wired Equivalent Privacy

(WEP) security is enabled on the AP, the station must have the proper WEP keys specified. Also make sure TCP/IP properties are correctly configured. 5. ARCCSEL Country Code Selector shows the following error message: No configurable 802.11a network cards were found in this system. Make sure the 802.11a Wireless LAN Network Adapter has Release 1.1 EEPROM contents programmed. 802.11a CardBus Reference Design boards that were released prior to Release 1.1 do not contain the regulatory domain information in the EEPROM. Therefore, the country code selection utility will not recognize the card. 127 Appendix A Channel and Data Rate Selection This section provides basic information for selecting fixed data rate and channel frequency in the NDIS driver. This becomes necessary if you want to test the 802.11a Wireless LAN Network Adapter at a specific channel with the rate adaptation controls turned off. To select channel frequency and data rate in the Windows environment with NDIS driver installed:

1. Click Start, Run, and type "regedit to open Registry Editor 2. For Windows 2000 and Windows XP, locate the following registry key, and select Find from the Edit menu:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\

For Windows 98SE and Windows Me, locate the following registry key, and select Find from the Edit menu:

HKEY_LOCAL_MACHINE\System\CurrnetControlSet\

3. Type "clist" and click Find Next to find the registry key. Note that if you have multiple instances of the 802.11a Wireless LAN Network Adapter installed, for example, the NDIS driver is installed more than once, then you will need to click Find Next to locate the current instance of the device that is in use. 4. Double-click on clist and enter the channel number in the "Value Data" field. Enter the IEEE channel number from the following table. For example, enter 40 to select channel frequency of 5.20 GHz. The channel numbers follow the IEEE format where:

Channel Frequency (in GHz)= 5 + 0.005 *(Channel Number). Channel Number 26 28 30 32 34 36 38 40 42 44 46 48 Channel Frequency 5.13 GHz 5.14 GHz 5.15 GHz 5.16 GHz 5.17 GHz 5.18 GHz 5.19 GHz 5.20 GHz 5.21 GHz 5.22 GHz 5.23 GHz 5.24 GHz Regulator Domain N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated TELEC FCC TELEC FCC TELEC FCC TELEC FCC 128 Channel Number 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 Channel Frequency 5.25 GHz 5.26 GHz 5.27 GHz 5.28 GHz 5.29 GHz 5.30 GHz 5.31 GHz 5.32 GHz 5.33 GHz 5.34 GHz 5.35 GHz 5.36 GHz 5.37 GHz 5.38 GHz 5.39 GHz 5.40 GHz 5.41 GHz 5.42 GHZ 5.43 GHZ Regulator Domain N/A (not calibrated) FCC N/A (not calibrated) FCC N/A (not calibrated) FCC N/A (not calibrated) FCC N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) N/A (not calibrated) 5. To select the fixed data rate at which you want the station to transmit, double-click on rateCtrlEnable from the same registry key location where clist resides, and enter 0 to disable rate adaptation. Double-click on TransmitRate and enter the value specified in the following table to select the actual data rate. For example, enter 3 for 18 Mbps. Rate Number 0 1 2 3 4 5 6 7 Data Rate 6 Mbps 9 Mbps 12 Mbps 18 Mbps 24 Mbps 36 Mbps 48 Mbps 54 Mbps 129 6. 7. For the changes to take effect:

If you are running Windows 98SE or Windows Me, close Register Editor and restart the systems. If you are running Windows 2000 or Windows XP, unload and load the driver from LinkMon. To undo these changes and go back to normal operation where the channel and data rate are dynamically set, change rateCtrlEnable to 1 and clear the clist value. 130 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: To assure continued compliance, (example - use only shielded interface cables when connecting to computer or peripheral devices) 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. 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 2.5cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 16