Q87-HGA7S-2Wireless-G Ethernet Bridge with 5-Port Switch

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-HGA7S-2 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: WET54GS5 Linksys Wireless-G Ethernet Bridge with 5-Port Switch Model No.: WET54GS5 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 D930614H05. 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)

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(Fig. 1) FCC ID: Q87-HGA7S-2 FCC LABEL LOCATION The label will be permanently affixed at a conspicuous location on the device. Label

WET54GS5 Bottom label 93/2/13 Phoebe 74 mm 1 6 m m 4xR1.0

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FCC ID: Q87-HGA7S-2 Report No. 930614H05 Operational Description This device is a WET54GS5 Linksys Wireless-G Ethernet Bridge with 5-Port Switch, 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 (WET54GS5 Linksys Wireless-G Ethernet Bridge with 5-Port Switch) is powered by from AC 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-HGA7S-2 ADT No.: 930614H05 1 FCC TEST REPORT REPORT NO.: RF930614H05 MODEL NO.: WET54GS5 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-HGA7S-2 ADT No.: 930614H05 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/300 6 1500-100,000 ... ... 5 6 (B)Limits For General Population / Uncontrolled Exposure 300-1500 ... ... F/1500 6 1500-100,000 ... ... 1.0 30 F = Frequency in MHz FCC ID: Q87-HGA7S-2 ADT No.: 930614H05 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 The antenna of the product, under normal use condition, is at least 20 cm away from the body of the user. Warning statement for keeping 20cm separation distance and the prohibition of operating next to a person has been printed on the users manual. So, this product is classified as the Mobile Device. FCC ID: Q87-HGA7S-2 ADT No.: 930614H05 4 6. Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber are 7dBi or 5.01187(numeric) 6.2 Output Power Into Antenna & RF Exposure Distance : Antenna Gain 7.0 dBi (without Cable loss): 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 ) 1 2412 50.5824662 0.050434664 1.0 6 2437 51.4043652 0.051254161 1.0 11 2462 51.1681836 0.05101867 1.0 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 ) 1 2412 20.5116218 0.020451687 1.0 6 2437 20.3235701 0.020264184 1.0 11 2462 20.4644464 0.020404649 1.0 Antenna Gain 7.0 dBi with Cable loss 3.7 dB: 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 ) 1 2412 50.5824662 0.021514395 1.0 6 2437 51.4043652 0.021863975 1.0 11 2462 51.1681836 0.021763520 1.0 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 ) 1 2412 20.5116218 0.008724271 1.0 6 2437 20.3235701 0.008644286 1.0 11 2462 20.4644464 0.008704205 1.0

FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 1 Issued: Jun. 24, 2004 FCC TEST REPORT REPORT NO.: RF930614H05 MODEL NO.: WET54GS5 RECEIVED: Jun. 14, 2004 TESTED: Jun. 17, 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 77 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. 0536 ILAC MRA FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 2 Issued: Jun. 24, 2004 Table of Contents 1 CERTIFICATION ........................................................................................... 4 2 SUMMARY OF TEST RESULTS................................................................... 5 3 GENERAL INFORMATION ........................................................................... 6 3.1 GENERAL DESCRIPTION OF EUT.............................................................. 6 3.2 DESCRIPTION OF TEST MODES................................................................ 7 3.3 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................... 7 3.4 DESCRIPTION OF SUPPORT UNITS.......................................................... 8 3.5 CONFIGURATION OF SYSTEM UNDER TEST ........................................... 9 4 TEST TYPES AND RESULTS..................................................................... 10 4.1 CONDUCTED EMISSION MEASUREMENT .............................................. 10 4.1.1 LIMITS OF CONDUCTED EMISSION MEASUREMENT............................ 10 4.1.2 TEST INSTRUMENTS ................................................................................ 10 4.1.3 TEST SETUP ...............................................................................................11 4.1.4 EUT OPERATING CONDITIONS................................................................ 12 4.1.5 TEST RESULTS.......................................................................................... 13 4.2 Radiated Emission Measurement ............................................................... 15 4.2.1 LIMITS OF RADIATED EMISSION MEASUREMENT................................. 15 4.2.2 TEST INSTRUMENTS ................................................................................ 16 4.2.3 TEST PROCEDURES................................................................................. 17 4.2.4 TEST SETUP .............................................................................................. 18 4.2.5 EUT OPERATING CONDITIONS................................................................ 18 4.2.6 TEST RESULTS (A) .................................................................................... 19 4.2.7 TEST RESULTS (A) - DSSS ....................................................................... 20 4.2.8 TEST RESULTS (A)-OFDM ........................................................................ 23 4.2.9 TEST RESULTS (B) .................................................................................... 26 4.2.10 TEST RESULTS (B) - DSSS ....................................................................... 27 4.2.11 TEST RESULTS (B)-OFDM ........................................................................ 30 4.3 6dB BANDWIDTH MEASUREMENT .......................................................... 33 4.3.1 LIMITS OF 6dB BANDWIDTH MEASUREMENT ........................................ 33 4.3.2 TEST INSTRUMENTS ................................................................................ 33 4.3.3 TEST PROCEDURE ................................................................................... 34 4.3.4 TEST SETUP .............................................................................................. 34 4.3.5 EUT OPERATING CONDITIONS................................................................ 34 4.3.6 TEST RESULTS-DSSS ............................................................................... 35 4.3.7 TEST RESULTS-OFDM .............................................................................. 39 FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 3 Issued: Jun. 24, 2004 4.4 MAXIMUM PEAK OUTPUT POWER .......................................................... 43 4.4.1 LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT ........... 43 4.4.2 TEST INSTRUMENTS ................................................................................ 43 4.4.3 TEST PROCEDURES................................................................................. 44 4.4.4 TEST SETUP .............................................................................................. 44 4.4.5 EUT OPERATING CONDITIONS................................................................ 44 4.4.6 TEST RESULTS (A) - DSSS ....................................................................... 45 4.4.7 TEST RESULTS (A) - OFDM ...................................................................... 46 4.4.8 TEST RESULTS (B) - DSSS ....................................................................... 47 4.4.9 TEST RESULTS (B) - OFDM ...................................................................... 48 4.5 POWER SPECTRAL DENSITY MEASUREMENT...................................... 49 4.5.1 LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT ................... 49 4.5.2 TEST INSTRUMENTS ................................................................................ 49 4.5.3 TEST PROCEDURE ................................................................................... 50 4.5.4 TEST SETUP .............................................................................................. 50 4.5.5 EUT OPERATING CONDITIONS.....…

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Report No. 930614H05 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 & Manufacturer Model No. Serial No. Calibrated Until R&S SPECTRUM ANALYZER FSP40 100036 Nov. 27, 2005 High pass filter 2.4G WHK3.1/18G-1 0SS SN4 Jun. 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. 930614H05 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. 930614H05 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. 930614H05 4 Ch1 Report No. 930614H05 5 Ch11 Report No. 930614H05 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. 930614H05 7 Ch1 Report No. 930614H05 8 Ch11

FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 73 Issued: Jun. 24, 2004 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST(antenna with the remote antenna-stand) FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 74 Issued: Jun. 24, 2004 CONDUCTED EMISSION TEST (antenna without the remote antenna-stand) FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 75 Issued: Jun. 24, 2004 RADIATED EMISSION TEST (antenna with the remote antenna-stand) FCC ID: Q87-HGA7S-2 Report No.: RF930614H05 76 Issued: Jun. 24, 2004 RADIATED EMISSION TEST (antenna without the remote antenna-stand)