Q87-HGA5S-1Wireless-G Ethernet Bridge

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 reasona ble protection against harmful interference in a residential installation. This eq uipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordan ce with the instructions, may cause harmf ul interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this e quipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the u ser 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 experien ced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may n ot cause harmful interference, and (2) this device must accept any inte rference received, including interference that may cause undesire d operation. FCC Caution: Any changes or modifications not expressly approve d by the party responsible for compliance could void the user's authority to operate this equipment. IMPORTANT NOTE:FCC Radiation Exposure Statement:This equipment complies with F CC radiation exposure limits set forth for an uncont rolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.Linksys declared that WET54G V2 is limited in CH1~11 by specified firmware controlled in USA. INDUSTRY CANADA (CANADA)Operation is subject to the following two conditions: (1) this de vice may not cause interference, and (2) this device must acce pt any interference, including interference that may cause undesired operation of the device. This device has been designed to operate with an antenna having a maximum gain of [3] dB. Antenna having a higher gain is stric tly prohibited per regulations of Industry Canada. The required antenna impedance is [ 50] ohms.To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent is otropically radiated power (EIRP) is not more than that required for successful communication. To prevent radio interference to the licensed service, this de vice is intended to be operate d indoors and away from windows to provide maximum shielding. Equipment (or its transmit antenna) that is installed outdoors is subject to licensing.

Cisco-Linksys, LLC 121 Theory Drive Irvine, CA 92612 (USA) Phone: ( 949 ) 823-3188 Fax: ( 949 ) 823-3002 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request FCC ID: Q87-HGA5S-1 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely yours, ------------------------------------------------------------------------------ Jennifer Yu / Associate Engineer Cisco-Linksys, LLC Phone: 949-823-3188 Fax: 949-261-8868 [email protected]

Cisco-Linksys, LLC 121 Theory Drive Irvine, CA 92612 (USA) Phone: ( 949 ) 823-3188 Fax: ( 949 ) 823-3002 Power of Attorney To whom it may concern: We, the undersigned Cisco-Linksys, LLC hereby authorize Advance Data Technology Corporation (ADT) of Taiwan to act on our behalf in all matters relating to all processes required in the FCC Part 15C approval and any communication needed with the national authority. Any and all acts carried out by ADT on our behalf shall have the same effects as acts of our own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Thank you! Sincerely yours, Jennifer Yu / Associate Engineer Cisco-Linksys, LLC Tel.: ( 949 ) 823-3188 Fax: ( 949 )261-8868 [email protected]

Cisco-Linksys, LLC 121 Theory Drive Irvine, CA 92612 (USA) Phone: : ( 949 ) 823-3188 Fax: ( 949 ) 823-3002 FEDERAL COMMUNICATIONS COMMISSION DECLARATION OF CONFORMITY (DoC) For the following equipment: Product Name: Wireless-G Ethernet Bridge Model No.: WET54G V2 Trade Name: Linksys Is herewith confirmed to be in compliance with the requirements of ANSI C63.4 & FCC part 15 regulations. The test result has been shown in the ADT test report with number D931005H03. And this compliance 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. The following local Manufacturer/Importer is responsible for this declaration: Cisco-Linksys, LLC (Company Name) 121 Theory Drive Irvine, CA 92612 (USA) (Company Address) TEL：( 949 ) 823-3188 FAX： ( 949 ) 261-8868 Jennifer Yu/ Associate Engineer (Name) / (Title) (Signature) / (Date)

Page 1 CONSTRUCTION PHOTOS OF EUT Page 2 Page 3

(Fig. 1) FCC ID: Q87-HGA5S-1 FCC LABEL LOCATION The label will be permanently affixed at a conspicuous location on the device. Label

2004/06/17 Eina

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FCC ID: Q87-HGA5S-1 Report No. 931005H03 Operational Description This device is a Wireless-G Ethernet Bridge, the maximum data rate could be 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 (Wireless-G Ethernet Bridge) is powered by power adapter. The antenna type used in this product is Dipole Antenna with Reverse SMA connector. The other instruction, please have a look at the users manual.

FCC ID: Q87-HGA5S-1 ADT No.: 931005H03 1 FCC TEST REPORT REPORT NO.: RF931005H03 MODEL NO.: WET54G V2 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:No. 81-1, Lu Liao Keng, 9 Ling, Wu Lung Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien, Taiwan, R.O.C. FCC ID: Q87-HGA5S-1 ADT No.: 931005H03 2 RF Exposure Measurement 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-HGA5S-1 ADT No.: 931005H03 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 Pd is the limit of MPE, 1 mW/cm 2 . 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 is a stand alone radio device. So under normal use condition, it is easy to be re- located in the place where at least 20 cm 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-HGA5S-1 ADT No.: 931005H03 4 6. Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber are 5dBi or 3.16228(numeric) 6.2 Output Power Into Antenna & RF Exposure value at distance 20cm : For Part 802.11b: Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density (mW/cm 2 ) Limit of Power Density (mW/cm 2 ) 1241235.72728380.0224765231.0 6243735.80964370.0225283371.0 11246235.80964370.0225283371.0 For Part 802.11g: Channel Channel Frequency (MHz) Output Power to Antenna (mW) Power Density (mW/cm 2 ) Limit of Power Density (mW/cm 2 ) 1241222.49054610.014149111.0 6243722.43881920.0141165681.0 11246222.64644310.0142471871.0

FCC ID: Q87-HGA5S-1 Report No.: RF931005H031 Issued: Oct. 15, 2004 FCC TEST REPORT REPORT NO.:RF931005H03 MODEL NO.:WET54G V2 RECEIVED:Oct. 5, 2004 TESTED:Oct. 12 to 13, 2004 APPLICANT: Cisco-Linksys, LLC ADDRESS: 121 Theory Drive Irvine, CA 92612 (USA) ISSUED BY:Advance Data Technology Corporation LAB LOCATION:No. 81-1, Lu Liao Keng, 9 Ling, Wu Lung Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien, Taiwan, R.O.C. This test report consists of 65 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, A2LA or any government agencies. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. 0536 No. 2177-01 ILAC MRA FCC ID: Q87-HGA5S-1 Report No.: RF931005H032 Issued: Oct. 15, 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................................................................ 8 3.3GENERAL DESCRIPTION OF APPLIED STANDARDS ............................... 8 3.4DESCRIPTION OF SUPPORT UNITS.......................................................... 9 3.5CONFIGURATION OF SYSTEM UNDER TEST ......................................... 10 4TEST TYPES AND RESULTS..................................................................... 12 4.1CONDUCTED EMISSION MEASUREMENT .............................................. 12 4.1.1LIMITS OF CONDUCTED EMISSION MEASUREMENT ........................... 12 4.1.2TEST INSTRUMENTS ................................................................................ 12 4.1.3TEST PROCEDURES................................................................................. 13 4.1.4TEST SETUP .............................................................................................. 13 4.1.5EUT OPERATING CONDITIONS................................................................ 14 4.1.6TEST RESULTS.......................................................................................... 15 4.2RADIATED EMISSION MEASUREMENT ................................................... 19 4.2.1LIMITS OF RADIATED EMISSION MEASUREMENT................................. 19 4.2.2TEST INSTRUMENTS ................................................................................ 20 4.2.3TEST PROCEDURES................................................................................. 21 4.2.4TEST SETUP .............................................................................................. 22 4.2.5EUT OPERATING CONDITIONS................................................................ 22 4.2.6TEST RESULTS.......................................................................................... 23 4.2.7TEST RESULTS - DSSS............................................................................. 25 4.2.8TEST RESULTS -OFDM ............................................................................. 28 4.36DB BANDWIDTH MEASUREMENT.......................................................... 31 4.3.1LIMITS OF 6DB BANDWIDTH MEASUREMENT ....................................... 31 4.3.2TEST INSTRUMENTS ................................................................................ 31 4.3.3TEST PROCEDURE ................................................................................... 32 4.3.4TEST SETUP .............................................................................................. 32 4.3.5EUT OPERATING CONDITIONS................................................................ 32 4.3.6TEST RESULTS-DSSS............................................................................... 33 4.3.7TEST RESULTS-OFDM .............................................................................. 37 4.4MAXIMUM PEAK OUTPUT POWER .......................................................... 41 4.4.1LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT ........... 41 FCC ID: Q87-HGA5S-1 Report No.: RF931005H033 Issued: Oct. 15, 2004 4.4.2TEST INSTRUMENTS ................................................................................ 41 4.4.3TEST PROCEDURES................................................................................. 42 4.4.4TEST SETUP .............................................................................................. 42 4.4.5EUT OPERATING CONDITIONS................................................................ 42 4.4.6TEST RESULTS - DSSS............................................................................. 43 4.4.7TEST RESULTS - OFDM ............................................................................ 44 4.5POWER SPECTRAL DENSITY MEASUREMENT...................................... 45 4.5.1LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT ................... 45 4.5.2TEST INSTRUMENTS ................................................................................ 45 4.5.3TEST PROCEDURE ................................................................................... 46 4.5.4TEST SETUP .............................................................................................. 46 4.5.5EUT OPERATING CONDITIONS................................................................ 46 4.5.6TEST RESULTS-DSSS............................................................................... 47 4.5.7TEST RESULTS-OFDM .............................................................................. 51 4.6BAND EDGES MEASUREMENT ................................................................ 55 4.6.1LIMITS…

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Report No. 931005H03 1 The Measurement of Conducted Spurious Emissions CONDUCTED SPURIOUS EMISSIONS MEASUREMENT 1. LIMITS OF CONDUCTED SPURIOUS EMISSIONS EASUREMENT Below 20dB of the highest emission level of operating band (in 100KHz Resolution Bandwidth, see Section 15.247(c)). Emissions which fall in the restricted bands, as defined in Section 15.205(a), must also comply with the limits specified in Section 15.209(a) (see Section 15.205(c)). 2. TEST INSTRUMENTS Description & ManufacturerModel No.Serial No.Calibrated Until R&S SPECTRUM ANALYZERFSP40100036Nov. 27, 2005 High pass filter 2.4G WHK3.1/18G- 10SS SN4Jun. 08, 2005 NOTE: 1.The calibration interval of the above test instruments is 12 months and the calibrations are traceable to NML/ROC and NIST/USA. 3. TEST PROCEDURE The transmitter output was connected to the spectrum analyzer via a low lose cable. Set both RBW and VBW of spectrum analyzer to 100 kHz with suitable frequency span including 100 kHz bandwidth from band edge. The band edges was measured and recorded. Report No. 931005H03 2 4. TEST SETUP 5. EUT OPERATING CONDITIONS The software provided by client to enable the EUT under transmission condition continuously at lowest, middle and highest channel frequencies individually. EUT SPECTRUM ANALYZER Report No. 931005H03 3 TEST RESULTS – For 802.11b The spectrum plots are attached on the following 2 pages. It shows compliance with the requirement in part 15.247(C),.15.205 and 15.209. Report No. 931005H03 4 Ch1 Report No. 931005H03 5 Ch11 Report No. 931005H03 6 TEST RESULTS – For 802.11g The spectrum plots are attached on the following 2 pages. It shows compliance with the requirement in part 15.247(C),.15.205 and 15.209. Report No. 931005H03 7 Ch1 Report No. 931005H03 8 Ch11

FCC ID: Q87-HGA5S-1 Report No.: RF931005H0363 Issued: Oct. 15, 2004 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: Q87-HGA5S-1 Report No.: RF931005H0364 Issued: Oct. 15, 2004 RADIATED EMISSION TEST