KA2DWLG120B2Air Plus Wireless Access Through USB 2.0

Manual Building Networks for People 802.11g (2.4GHz) Wireless USB Adapter D-Link AirPlus G DWL-G120 TM 2 Contents Package Contents................................................................................ 3 Introduction............................................................................................ 4 Wireless Basics.................................................................................... 6 Getting Started .................................................................................... 10 Using the Configuration Utility.............................................................. 13 Networking Basics.............................................................................. 19 Troubleshooting................................................................................... 32 Technical Specifications...................................................................... 35 Contacting Technical Support.............................................................. 36 Warranty and Registration................................................................... 37 3 Contents of Package: D-Link AirPlus G DWL-G120 802.11g (2.4 GHz) Wireless USB Adapter Manual on CD-ROM Quick Installation Guide Package Contents Properly installed and working USB Controller USB Cable 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


TM 4 Introduction * This is the theoretical maximum of the chipset used in the DWL-G120 Wireless USB Adapter. Actual through-put may vary. TM The D-Link AirPlus G DWL-G120 802.11g (2.4GHz) Wireless USB Adapter is a convenient Plug & Play USB 2.0 solution that brings wireless networking to your laptop or desktop PC. It provides up to a 128-bit level of WEP security to your wireless data transfers. The DWL-G120 comes with software drivers for the most popular Microsoft Windows operating systems and can be integrated into a larger network, running Windows XP/2000/Me/98SE in either Ad-Hoc mode (without an access point or router) or Infrastructure mode (with an access point or router). The IEEE 802.11g Ethernet standard allows you to connect computers and 802.11g compatible devices at speeds up to 54Mbps*, dependent upon the distance between wireless adapters, the configuration of your working environment, or the capabilities or limitations of your computer systems. Unlike most network cards, the DWL-G120 provides data transfers at up to 54 Mbps when used with other D-Link AirPlus G products. The 802.11g standard is backwards compatible with 802.11b products. 5 Features and Benefits ** * Environmental factors may adversely affect range Convenience of Plug & Play installation.
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.
Network Security with 128-bit WEP encryption.
USB 2.0 standard.
Fully 802.11g compatible. Backwards compatible with 802.11b devices.
Five times faster - achieve data transfer speeds up to 54 Mbps; up to 5x faster than conventional 802.11b networks, when used with other 802.11g devices.
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 Wireless Local Area Network (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-G120 is properly installed in the computer. Link - Blinks when data is being transmitted through the wireless connection. Mini-USB 2.0 port Used to connect the DWL-G120 to your computer Antenna Used to wirelessly connect to 802.11g networks 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 …

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Page 1 CONSTRUCTION PHOTOS OF EUT Page 2 Page 3 Page 4 Page 5

Label Location

Model: DWL-G120 FCC ID: KA2DWLG120B2

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FCC ID: KA2DWLG120B2 Report No.RF930419L01 Operational Description This device is a Air Plus G Wireless Access Through USB 2.0 which operates in the 2.4GHz frequency spectrum with throughput of up to 54Mbps which OFDM technique will be applied. If the signal to noise radio is too poor which could not support 54Mbps, the 11Mbps data rate with CCK technique will be applied. The transmitter of the EUT is powered by host equipment via a USB interface. The antenna is PIFA antenna without connector. The other instruction, please have a look at the users manual.

FCC ID:KA2DWLG120B2 Report No: SA930419L01 1 RF EXPOSURE REPORT REPORT NO.: SA930419L01 MODEL NO.: DWL-G120 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. FCC ID: KA2DWLG120B2 Report No: SA930419L01 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 FCC ID: KA2DWLG120B2 Report No: SA930419L01 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 20cm. 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 This device is not fixed inside the host equipment, it is connected with host through wire. So it is easy to be re-located in the place where at least 20cm far 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. FCC ID: KA2DWLG120B2 Report No: SA930419L01 4 6 Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber is 1.8dBi or 1.514(numeric). 6.2 Output Power Into Antenna & RF Exposure Distance : For Part 802.11b (CCK technique): Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density (mW/cm 2 ) Limit of Power Density (mW/cm 2 ) 1241244.6680.0131.0 6243756.2340.0171.0 11246244.6680.0131.0 For Part 802.11g (OFDM technique): Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density (mW/cm 2 ) Limit of Power Density (mW/cm 2 ) 1241225.1190.0081.0 6243744.6680.0131.0 11246225.1190.0081.0

FCC ID: KA2DWLG120B2 Report No.: RF930419L011Issued: April 21, 2004 FCC TEST REPORT REPORT NO.: RF930419L01 MODEL NO.: DWL-G120 RECEIVED: April 15, 2004 TESTED: April 15 ~ April 19, 2004 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 67 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 or any government agencies. The test results in the report only apply to the tested sample. 0528 ILAC MRA FCC ID: KA2DWLG120B2 Report No.: RF930419L012Issued: April 21, 2004 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 3.5CONFIGURATION OF SYSTEM UNDER TEST........................................... 9 4TEST TYPES AND RESULTS..................................................................... 10 4.1CONDUCTED EMISSION MEASUREMENT .............................................. 10 4.1.1LIMITS OF CONDUCTED EMISSION MEASUREMENT............................ 10 4.1.2TEST INSTRUMENTS ................................................................................ 10 4.1.3TEST PROCEDURES..................................................................................11 4.1.4DEVIATION FROM TEST STANDARD ........................................................11 4.1.5TEST SETUP .............................................................................................. 12 4.1.6EUT OPERATING CONDITIONS................................................................ 12 4.1.7TEST RESULTS.......................................................................................... 13 4.2RADIATED EMISSION MEASUREMENT ................................................... 19 4.2.1LIMITS OF RADIATED EMISSION MEASUREMENT................................. 19 4.2.2TEST INSTRUMENTS ................................................................................ 20 4.2.3TEST PROCEDURES................................................................................. 21 4.2.4DEVIATION FROM TEST STANDARD ....................................................... 21 4.2.5TEST SETUP .............................................................................................. 22 4.2.6EUT OPERATING CONDITIONS................................................................ 22 4.2.7.TEST RESULTS.......................................................................................... 23 4.2.8.TEST RESULTS (FOR CCK)...................................................................... 24 4.2.9.TEST RESULTS (FOR OFDM) ................................................................... 27 4.36dB BANDWIDTH MEASUREMENT .......................................................... 30 4.3.1LIMITS OF 6dB BANDWIDTH MEASUREMENT ........................................ 30 4.3.2TEST INSTRUMENTS ................................................................................ 30 4.3.3TEST PROCEDURE ................................................................................... 31 4.3.4DEVIATION FROM TEST STANDARD ....................................................... 31 4.3.5TEST SETUP .............................................................................................. 31 4.3.6EUT OPERATING CONDITIONS................................................................ 31 FCC ID: KA2DWLG120B2 Report No.: RF930419L013Issued: April 21, 2004 4.3.7TEST RESULTS(FOR CCK) ....................................................................... 32 4.3.8TEST RESULTS(FOR OFDM) .................................................................... 36 4.4MAXIMUM PEAK OUTPUT POWER .......................................................... 40 4.4.1LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT ........... 40 4.4.2TEST INSTRUMENTS ................................................................................ 40 4.4.3TEST PROCEDURES................................................................................. 41 4.4.4DEVIATION FROM TEST STANDARD ....................................................... 41 4.4.5TEST SETUP .............................................................................................. 41 4.4.6EUT OPERATING CONDITIONS................................................................ 41 4.4.7TEST RESULTS(FOR CCK) ....................................................................... 42 4.4.8TEST RESULTS(FOR OFDM) .................................................................... 42 4.5POWER SPECTRAL DENSITY MEASUREMENT...................................... 43 4.5.1LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT ................... 43 4.5.2TEST INSTRUMENTS ................................................................................ 43 4.5.3TEST PROCEDURE ................................................................................... 44 4.5.4DEVIATION FROM TEST STANDARD ....................................................... 44 4.5.5TEST SETUP .............................................................................................. 44 4.5.6EUT OPERATING CONDITIONS.............................…

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FCC ID: KA2DWLG120B2 Report No.: RF930419L0165Issued: April 21, 2004 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: KA2DWLG120B2 Report No.: RF930419L0166Issued: April 21, 2004 RADIATED EMISSION TEST