KA2DWL-120PLUSEnhanced 2.4 GHz Wireless USB Adapter

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Manual Building Networks for People AirPlus DWL-120+ D-Link 2.4GHz Wireless USB Adapter 2 Contents Package Contents................................................................................ 3 Introduction............................................................................................ 4 Wireless Basics .................................................................................... 6 Getting Started...................................................................................... 9 Using the Configuration Utility.............................................................. 12 Networking Basics.............................................................................. 18 Troubleshooting................................................................................... 31 Technical Specifications...................................................................... 34 Contacting Technical Support.............................................................. 35 Warranty and Registration................................................................... 36 3 Contents of Package: D-Link AirPlus DWL-120+ 2.4 GHz Wireless USB Adapter Manual on CD-ROM Quick Installation Guide Package Contents If any of the above items are missing, please contact your reseller. System Requirements: „ „ „ Windows XP/2000/Me/98SE „ A computer or laptop with an available USB port „ At least 32 MB of memory and a 300 MHz processor „ „ Properly installed and working USB Controller „ USB Cable 4 Introduction The D-Link AirPlus DWL-120+ 2.4GHz Wireless USB Adapter is a convenient Plug & Play USB 1.1 solution that brings wireless networking to your laptop or desktop PC. It provides up to 256-bit level of WEP security to your wireless data transfers. After completing the steps outlined in the Quick Installation Guide (included in your package) you will have the ability to share information and resources, such as files, printers, and Internet connection and enjoy the freedom that wireless networking delivers. The DWL-120+ comes with software drivers for the most popular Microsoft Windows operating systems and can be integrated into a larger network, running Windows XP, Windows 2000, Windows Me, or Windows 98SE in either Ad Hoc mode (without an Access Point or Router) or Infrastructure mode (with an Access Point or Router). The IEEE 802.11b Ethernet standard allows you to connect computers and 802.11b compatible devices at speeds up to 22Mbps*, dependent upon the distance between wireless adapters, the configuration of your working environment, or the capabilities or limitations of your computer systems. * This is the theoretical maximum of the chipset used in the DWL-120+ USB Adapter. Actual through-put may vary. 5 Features and Benefits Convenience of Plug & Play installation „ ** * Environmental factors may adversely affect range Three year warranty (USA only) „ Connects at up to 328 feet indoors* „ User-friendly configuration and diagnostic utilities „ Supports infrastructure networks via an Access Point or Router and Peer-to-Peer communication in Ad-Hoc mode „ Stronger Network Security with 256-bit WEP encryption„ USB 1.1 standard „ Fully 802.11b compatible „ 6 D-Link wireless products are based on industry standards to provide easy-to- use and compatible high-speed wireless connectivity within your home, business or public access wireless networks. D-Link wireless products will allow you access to the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking brings. A WLAN is a cellular computer network that transmits and receives data with radio signals instead of wires. WLANs are used increasingly in both home and office environments, and public areas such as airports, coffee shops and universities. Innovative ways to utilize WLAN technology are helping people to work and communicate more efficiently. Increased mobility and the absence of cabling and other fixed infrastructure have proven to be beneficial for many users. Wireless users can use the same applications they use on a wired network. Wireless adapter cards used on laptop and desktop systems support the same protocols as Ethernet adapter cards. Wireless Basics Features Link/Activity LED Power - Indicates that the DWL-120+ is properly installed in the computer. Link - Blinks when data is being transmitted through the wireless connection. Antenna Used to wirelessly connect to 802.11b networks Mini-USB port Used to connect the DWL-120+ to your computer 7 Wireless Basics (continued) People use wireless LAN technology for many different purposes: Mobility - Productivity increases when people have access to data in any location within the operating range of the WLAN. Management decisions based on real-time information can significantly improve worker efficiency. Low Implementation Costs – WLANs are easy to set up, manage, change and relocate. Networks that frequently change can benefit from WLANs ease of implementation. WLANs can operate in locations where installation of wiring may be impractical. Installation and Network Expansion - Installing a WLAN system can be fast and easy and can eliminate the need to pull cable through walls and ceilings. Wireless technology allows the network to go where wires cannot go - even outside the home or office. Scalability – WLANs can be configured in a variety of topologies to meet the needs of specific applications and installations. Configurations are easily changed and range from peer-to-peer networks suitable for a small number of users to larger infrastructure networks to accommodate hundreds or thousands of users, depending on the number of wireless devices deployed. Inexpensive Solution - Wireless network devices are as competitively priced as conventional Ethernet network devices. Standards-Based Technology Based on the IEEE 802.11b standard, the DWL-120+ is interoperable with existing compatible 2.4GHz wireless technology with data transfer s…

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American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 May 30, 2003 RE: D-Link Corporation FCC ID: KA2DWL-120PLUS I have a few comments on the above referenced Application. 1) Please provide photographs of the inside portion of the antenna. Timothy R. Johnson Examining Engineer mailto: [email protected] The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

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FCC ID: KA2DWL-120PLUS ADT No.920422R02 Operational Description The transmitter of the EUT is powered by host equipment from USB port. The antenna is Dipole Antenna without antenna connector. Under normal use condition, the user has to keep at least 20cm separation distance between radiator and the body of the user. The other instruction, please have a look at the users manual. DSSS Information This device is Direct Sequence Spread Spectrum, the data is mixed by pseudorandom code which is an orthogonal code. The mixed data is digital modulated by BPSK and QPSK technique depends on the data rates. The CCK coding is applied for increasing the data rate. The bit rates are 1,2,5.5,11,22Mbps, the symbol rates are 1,1,1.375,1.375,1.375 Mbps, the chip rates are always 11Mbps. So, the Chip/symbol is 11,11,8,8,and16 respectively. Although is higher bit rate, the processing gain is lower than 10, but the CCK coding used in higher bit rate will provide 2.2dB coding gain.

Report No: 920422R02 1 RF EXPOSURE REPORT REPORT NO.: RF920422R02 MODEL NO.: DWL-120+ ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT: D-Link Corporation ADDRESS: No.8,Li-Hsin VII Road, Science Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. ISSUED BY: Advance Data Technology Corporation LAB LOCATION: 47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. 0528 ILAC MRA Lab Code: 200102-0 Report No: 920422R02 2 RF Exposure Measurement (Mobile Device) 1. Introduction In this document, we try to prove the safety of radiation harmfulness to the human body for our product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The Gain of the antenna used in this product is measured in a Fully Anechoic Chamber (FAC) calibrated for antenna measurement in ADT, and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis transmission formula is a far field assumption, the calculated result of that is an over-prediction for near field power density. We will take that as the worst case to specify the safety range. 2. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) (A)Limits For Occupational / Control Exposures 300-1500......F/3006 1500-100,000......56 (B)Limits For General Population / Uncontrolled Exposure 300-1500......F/15006 1500-100,000......1.030 F = Frequency in MHz Report No: 920422R02 3 3. Friis Formula Friis transmission formula : Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm If we know the maximum Gain of the antenna and the total power input to the antenna, through the calculation, we will know the MPE value at distance r. Ref. : David K. Cheng, Field and Wave Electromagnetics, Second Edition, Page 640, Eq. (11-133). 4 EUT Operating condition The software provided by Manufacturer enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 5. Classification The antenna of the product, under normal use condition, is at least 20cm away from the body of the user. Warning statement to the user for keeping at least 20cm or more separation distance with the antenna should be included in users manual. So, this device is classified as Mobile Device. Report No: 920422R02 4 6 Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber are 1dBi or 1.258 (numeric). 6.2 Output Power Into Antenna & RF Exposure value at distance 20cm: Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density (mW/cm 2 ) Limit of Power Density (mW/cm 2 ) 1241253.8260.01351.0 6243752.2390.01311.0 11246253.2100.01331.0

FCC ID: KA2DWL-120PLUS Report No.: RF920422R021Issued: May 23, 2003 FCC TEST REPORT REPORT NO.: RF920422R02 MODEL NO.: DWL-120+ RECEIVED: Apr. 22, 2003 TESTED: May 9 ~ May 16, 2003 APPLICANT: D-Link Corporation ADDRESS: No.8,Li-Hsin VII Road, Science Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. ISSUED BY: Advance Data Technology Corporation LAB LOCATION: 47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. This test report consists of 49 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by CNLA, NVLAP or any government agencies. The test results in the report only apply to the tested sample. 0528 ILAC MRA Lab Code: 200102-0 FCC ID: KA2DWL-120PLUS Report No.: RF920422R022Issued: May 23, 2003 Table of Contents 1CERTIFICATION ........................................................................................... 4 2SUMMARY OF TEST RESULTS................................................................... 5 3GENERAL INFORMATION ........................................................................... 6 3.1GENERAL DESCRIPTION OF EUT.............................................................. 6 3.2DESCRIPTION OF TEST MODES................................................................ 7 3.3GENERAL DESCRIPTION OF APPLIED STANDARDS ............................... 7 3.4DESCRIPTION OF SUPPORT UNITS .......................................................... 8 4TEST TYPES AND RESULTS....................................................................... 9 4.1CONDUCTED EMISSION MEASUREMENT ................................................ 9 4.1.1LIMITS OF CONDUCTED EMISSION MEASUREMENT.............................. 9 4.1.2TEST INSTRUMENTS .................................................................................. 9 4.1.3TEST PROCEDURES................................................................................. 10 4.1.4TEST SETUP .............................................................................................. 10 4.1.5EUT OPERATING CONDITIONS.................................................................11 4.1.6TEST RESULTS.......................................................................................... 12 4.2RADIATED EMISSION MEASUREMENT ................................................... 18 4.2.1LIMITS OF RADIATED EMISSION MEASUREMENT................................. 18 4.2.2TEST INSTRUMENTS ................................................................................ 19 4.2.3TEST PROCEDURES................................................................................. 20 4.2.4TEST SETUP .............................................................................................. 21 4.2.5EUT OPERATING CONDITIONS................................................................ 21 4.2.6TEST RESULTS.......................................................................................... 22 4.36dB BANDWIDTH MEASUREMENT .......................................................... 27 4.3.1LIMITS OF 6dB BANDWIDTH MEASUREMENT ........................................ 27 4.3.2TEST INSTRUMENTS ................................................................................ 27 4.3.3TEST PROCEDURE ................................................................................... 28 4.3.4TEST SETUP .............................................................................................. 28 4.3.5EUT OPERATING CONDITIONS................................................................ 28 4.3.6TEST RESULTS.......................................................................................... 29 4.4MAXIMUM PEAK OUTPUT POWER .......................................................... 33 4.4.1LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT ........... 33 4.4.2TEST INSTRUMENTS ................................................................................ 33 4.4.3TEST PROCEDURES................................................................................. 34 4.4.4TEST SETUP .............................................................................................. 34 4.4.5EUT OPERATING CONDITIONS................................................................ 34 FCC ID: KA2DWL-120PLUS Report No.: RF920422R023Issued: May 23, 2003 4.4.6TEST RESULTS.......................................................................................... 35 4.5POWER SPECTRAL DENSITY MEASUREMENT...................................... 36 4.5.1LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT ................... 36 4.5.2TEST INSTRUMENTS ................................................................................ 36 4.5.3TEST PROCEDURE ................................................................................... 37 4.5.4TEST SETUP .............................................................................................. 37 4.5.5EUT OPERATING CONDITIONS................................................................ 37 4.5.6TEST RESULTS.......................................................................................... 38 4.6BAND EDGES MEASUREMENT ................................................................ 42 4.6.1LIMITS OF BAND EDGES MEASUREMENT............................................. 42 4.6.2TEST INSTRUMENTS ................................................................................ 42 4.6.3TEST PROCEDURE ................................................................................... 42 4.6.4EUT OPERATING CONDITION .................................................................. 42 4.6.5TEST RESULTS.......................................................................................... 43 4.7ANTENNA REQUIREMENT........................................................................ 46 4.7.1STANDARD APPLICABLE ...................................…

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FCC ID: KA2DWL-120PLUS Report No.: RF920422R0247Issued: May 23, 2003 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: KA2DWL-120PLUS Report No.: RF920422R0248Issued: May 23, 2003 RADIATED EMISSION TEST