Q87-WRE54GWireless-G Range Expander

A Division of Cisco Systems, Inc . ® Model No. Range Expander Wireless- G WRE54G User Guide GHz 2.4 802.11g WIRELESS Chapter 1: Introduction WelcomeWRE54G Wireless-G Range Expander is a standard WLAN repeater device. It can repeat and extend wireless signal coverage on Linksys wireless AP/router. Featuresz Supports 64 / 128 bit WEP encryption in 802.11b/802.11g wireless LAN. z Wireless operation provides data rate at 11, 5.5, 2, and 1Mbps with auto fallback for 802.11b WLAN card and also provide rate at 6, 9, 12, 18, 24, 36, 48, and 54Mbps for 802.11g WLAN card. z Configurable through your networked PC’s Web browser z Configurable through Setup Wizard z Backup and restore configuration z Support auto-configuration and infrastructure operation modes. Under auto-configuration operation mode, WRE54G will detect and connect to the Linksys wireless AP/Router with strongest signal in the environment. Infrastructure operation mode allows user configure the WRE54G via setup wizard. z Password protected configuration or management sessions for web access z Built-in HTTP Server for setup and management via any browser easily z Support 64/128 bit WEP encryption. Chapter 2: Planning your Wireless Network The Repeater’s Functions Simply put, the Wireless-G Range Expander can increase the coverage area of an ESS. Network Topology A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each co mputer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same frequency channel and SSID, which is an identification name for wireless devices. Ad-Hoc versus Infrastructure Mode Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an access point. An ad-hoc confi guration is wireless-equipped computers co mmunicating directly with each other. Choosin g between these two modes depends on whether or not the wireless network needs to share data or peripherals with a wired network or not. If the computers on the wireless network need to be accessed by a wired network or need to share a pe ripheral, such as a printer, with the wired network computers, the wireless network should be set up in infrastructure mode. The basis of infrastructure mode centers around an access point, which serves as the main point of communications in a wireless network. Access points transmit data to PCs equipped with wireless network cards, which can roam within a certain radial range of the access po int. Multiple access points can be arranged to work in su ccession to extend the roaming range. If the wireless network is relatively small and needs to share resources only with the other computers on the wireless network, then the ad-hoc mode can be used. Ad-hoc mode allows computers equipped with wireless transmitters and receivers to communicate directly with e ach other, eliminating the need for an access point. The drawback of this mode is that, in Ad-Hoc mode, wireless-eq uipped computers are no t able to communicate with computers on a wired network. And, of course, communication between the wireless-equipped computers is limited by the distance and interference directly between them. Chapter 3: Getting to Know the Wireless-G Range ExpanderThe Side Panel Auto configuration port is where you will connect the power adapter. Reset Button You can use an object, such as a st retched paper clip, to press the Reset button and then release the button to reset the device to its factory-default settings. The Top Panel The LEDs on the top panel of the Wireless-G Range Expander indicate the information about power and network activity. Power Blue. The Power LED lights up when the Wireless-G Range Expander is powered on. Link Blue. The Link LED lights whenever there is a successful wireless connection. Chapter 4: Connecting the Wireless-G Range ExpanderThe Setup Wizard will take you through all the steps necessary to configure the Wireless-G Range Expander. Before you start it, your notebook or desktop computer must already be part of a wireless network. 1. Power on your Access Point and ma ke sure cables are properly connected. 2. In order to configure the Wireless-G Range Expander you mush already be connected to a wireless Access Point. 3. Power on your Wireless-G Range Expander by connecting your Wireless-G Range Expander to a power outlet. 4. Once the Wireless-G Range Expander is powered on, you can access it in your wireless network. 5. Insert the Setup Wizard CD into the CD-ROM driver of your PC or notebook that has already be part of a wireless network. 6. The screen should appear on your monitor. If it does not, this means the auto-run is not functioning. Start the auto-run manually by clicking the Start button, selecting Run, and typing D:\setup.exe (if “D” is your CD-ROM drive). Click the Setup button to run the Setup Wizard. 7. Click the Next button to continue or Exit to exit the Setup Wizard. 8. The next screen to appear will display a list of the access points on your network, along with the status information for each access point . If there is only one access point on your network, it will be the only one displayed. If there are more than one displayed, select the Access Point you want to connect to. Once you have connected to an Access Point, the Setup Wizard will search for all of the Wireless-G Range Expanders on your network. 9. Click the Yes button to continue or No to exit the Setup Wizard. 10. The Security screen shows the WEP key. If you would like to use Wired Equivalent Privacy (WEP) encryption for your wireless network., enter the required information on the screen. z WEP . In order to utilize WEP encryption, select the WEP setting from the pull-down menu, 64-bit (10 hex digits) or 128-bit (26 hex digits). If you do not wish to utilize WEP encryption, make sure Disabl…

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Page 1 CONSTRUCTION PHOTOS OF EUT Page 2 Page 3

FCC ID Label Location

THIS LIGHT IS ON. OUT THE POWER PLATE) (UNPLUG THE POWER CORD BEFORE PULLING DO NOT REMOVE THE POWER PLATE WHEN I.T.E LISTED E213095 Tested To Comply FOR HOME OR OFFICE USE With FCC Standards MAC: Serial No: Model No A Division of Cisco Systems, Inc Wireless-G Range Expander WRE54G FCC ID: Q87-WRE54G (2) this device must accept any interference received, including interference that may cause undesired operation. (1) This device may not cause harmful interference, and Operation is subject to the following two conditions: This device complies with Part of 15 the FCC Rules. Warning Label Back Label

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FCC ID: Q87-WRE54G Report No.RF930316R01 Operational Description This device is an Wireless-G Range Expander 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 AC adapter and connected with managing computer through RJ45 port. The antenna is Dipole antenna with UFL 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.

FCC ID: Q87-WRE54G Report No: SA930316R01 1 RF EXPOSURE REPORT REPORT NO.: SA930316R01 MODEL NO.: WRE54G ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT: Cisco-Linksys, LLC ADDRESS: 121 Theory Drive, Irvine, CA 92612 (USA) ISSUED BY: Advance Data Technology Corporation LAB LOCATION: 47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. FCC ID: Q87-WRE54G Report No: SA930316R01 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: Q87-WRE54G Report No: SA930316R01 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: Q87-WRE54G Report No: SA930316R01 4 6 Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber is 2dBi or 1.585(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 ) 1241243.0530.0141.0 6243746.8810.0151.0 11246243.2510.0141.0 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 ) 1241233.8060.0111.0 6243734.8340.0111.0 11246233.9630.0111.0

FCC ID: Q87-WRE54G Report No.: RF930316R011Issued: March 29, 2004 FCC TEST REPORT REPORT NO.: RF930316R01 MODEL NO.: WRE54G RECEIVED: Mar. 16, 2004 TESTED: Mar. 20 ~ Mar. 23, 2004 APPLICANT: Cisco-Linksys, LLC ADDRESS: 121 Theory Drive, Irvine, CA 92612 (USA) ISSUED BY: Advance Data Technology Corporation LAB LOCATION: 47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. This test report consists of 74 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: Q87-WRE54G Report No.: RF930316R012Issued: March 29, 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 4.2.7TEST RESULTS.......................................................................................... 23 4.2.8TEST RESULTS (FOR CCK)...................................................................... 25 4.2.9TEST RESULTS (FOR OFDM) ................................................................... 31 4.36dB BANDWIDTH MEASUREMENT .......................................................... 37 4.3.1LIMITS OF 6dB BANDWIDTH MEASUREMENT ........................................ 37 4.3.2TEST INSTRUMENTS ................................................................................ 37 4.3.3TEST PROCEDURE ................................................................................... 38 4.3.4DEVIATION FROM TEST STANDARD ....................................................... 38 4.3.5TEST SETUP .............................................................................................. 38 4.3.6EUT OPERATING CONDITIONS................................................................ 38 4.3.7TEST RESULTS.......................................................................................... 39 4.4MAXIMUM PEAK OUTPUT POWER .......................................................... 47 4.4.1LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT ........... 47 FCC ID: Q87-WRE54G Report No.: RF930316R013Issued: March 29, 2004 4.4.2TEST INSTRUMENTS ................................................................................ 47 4.4.3TEST PROCEDURES................................................................................. 48 4.4.4DEVIATION FROM TEST STANDARD ....................................................... 48 4.4.5TEST SETUP .............................................................................................. 48 4.4.6EUT OPERATING CONDITIONS................................................................ 48 4.4.7TEST RESULTS.......................................................................................... 49 4.5POWER SPECTRAL DENSITY MEASUREMENT...................................... 50 4.5.1LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT ................... 50 4.5.2TEST INSTRUMENTS ................................................................................ 50 4.5.3TEST PROCEDURE ................................................................................... 51 4.5.4DEVIATION FROM TEST STANDARD ....................................................... 51 4.5.5TEST SETUP .............................................................................................. 51 4.5.6EUT OPERATING CONDITIONS................................................................ 51 4.5.7TEST RESULTS.......................................................................................... 52 4.6BAND EDGES MEASUREMENT ...........................................................…

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FCC ID: Q87-WRE54G Report No.: RF930316R0172Issued: March 29, 2004 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: Q87-WRE54G Report No.: RF930316R0173Issued: March 29, 2004 RADIATED EMISSION TEST