GSS-WL850FJB54g Wireless LAN Mini PCI Card

FCC ID: GSS-WL850FJB Report No. RF931018L10 Modular Approval Request Letter ViewSonic Corp. Oct. 27, 2004 Dear Application Examiner, ViewSonic’s 54g Wireless LAN Mini PCI Card, FCC ID: GSS-WL850FJB, would like to have your authorization for Module Approval specific to the mobile device such as Digital Media Adapter, Router, Access Point and similar equipment. The requirements of Public Notice DA00-1407 have been met and shown on the following statements. 1. “The modular transmitter must have its own RF shielding.”: The radio portion of this module has been shielded, please see exhibition External Photo. 2. “The modular transmitter must have buffered modulation/data inputs.” The EUT has buffered data inputs, it is integrated in chip ISL3886. 3. “The modular transmitter must have its own power supply regulation.” There is a regulator in the DC input port, the part number is ISL6412. 4. “The modular transmitter must comply with the antenna requirements of section 15.203 and 15.204(C).” The EUT meets the FCC antenna requirements. The spurious emission, unique antenna connector and photo of antennas are shown in the test report. 5. “The modular transmitter must be tested in a stand-alone configuration” The EUT was tested in a stand-alone configuration via a Mimi-PCI to PCMCIA adapter card. Please see section Photographs of Test Configuration in the test report. 6. “The modular transmitter must be labeled with its own FCC ID number.” Please see exhibition Label Sample for the FCC ID of this module. And also in the exhibition Users Manual, there are instructions give to the OEM on how to label the end product. FCC ID: GSS-WL850FJB Report No. RF931018L10 7. “The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements.” The EUT is compliant with all applicable FCC rules. Detail instructions for maintaining compliance are given in the Users Manual. 8. “The modular transmitter must comply with any applicable RF exposure requirements.” The EUT is compliant with all applicable RF exposure requirements. RF Exposure is addressed in the RF exposure exhibition. Please contact me if you have any further questions. Thanks for your attention. Best Regards, Cody Chang / Deputy Manager Manager of R&TTE Division Advance Data Technology

ViewSonic Corporation 381 Brea Canyon Road, Walnut, California 91789 (909) 444-8888 * Fax (909) 444-8652 http://www.viewsonic.com Agency Authorization Letter FCC ID: GSS-WL850FJB Date: October 22, 2004 To whom it may concern: We, the undersigned, hereby authorize Advance Data Technology Corp. (ADT) of Taiwan to act on our behalf, as our agent, in the following matters related to the FCC approval of our products: report submittal, related correspondence, the signing of all documents relating to these matters, and any other lawful activity necessary to obtain such certification. Any act carried out by ADT within the scope of this authorization shall have the same effects as our own. This authorization shall expire 6 months from original date. If you have any questions regarding this authorization, please don’t hesitate to contact us. Thank you. Sincerely, ___________________________ October 22, 2004 James Huang Date Regulatory Manager Tel: 909-444-8786 Fax: 909-839-7900 e-Mail: [email protected]

ViewSonic Corporation 381 Brea Canyon Road, Walnut, California 91789 (909) 444-8888 * Fax (909) 444-8652 http://www.viewsonic.com FCC ID: GSS-WL850FJB Date: October 22, 2004 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request 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, ___________________________ October 22, 2004 James Huang Date Regulatory Manager Tel: 909-444-8786 Fax: 909-839-7900 e-Mail: [email protected]

ViewSonic Corporation 381 Brea Canyon Road, Walnut, California 91789 (909) 444-8888 * Fax (909) 444-8652 http://www.viewsonic.com FEDERAL COMMUNICATIONS COMMISSION DECLARATION OF CONFORMITY (DoC) For the following equipment: Product Name: 54g Wireless LAN Mini PCI Card Model Name: WL-850FJB Trade Name: ViewSonic 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 FD930831L17. 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: ViewSonic Corp. (Company Name) 381 Brea Canyon Rd. Walnut, CA. 91789, USA (Company Address) ___________________________ October 22, 2004 James Huang Date Regulatory Manager Tel: 909-444-8786 Fax: 909-839-7900 e-Mail: [email protected]

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FCC ID: GSS-WL850FJB Report No. RF931018L10 Operational Description This device is a 54g Wireless LAN Mini PCI Card 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. The antenna is Printed monopole antenna with UFL 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: GSS-WL850FJB Report No: SA931018L10 1 RF EXPOSURE REPORT REPORT NO.: SA931018L10 MODEL NO.: WL-850FJB ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT: ViewSonic Corp. ADDRESS: 381 Brea Canyon Rd., Walnut, CA. 91789, U.S.A. ISSUED BY: Advance Data Technology Corporation TEST LOCATION: No. 19, Hwa Ya 2nd Rd., Wen Hwa Tsuen, Kwei Shan Hsiang, Taoyuan Hsien 333, Taiwan, R.O.C. FCC ID: GSS-WL850FJB Report No: SA931018L10 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: GSS-WL850FJB Report No: SA931018L10 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. Warming statement for keeping 20cm separation distance and the prohibition of operating next to a person has been printed on the user’s manual. So, this product is classified as the Mobile Device. FCC ID: GSS-WL850FJB Report No: SA931018L10 4 6 Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber is 1.1dBi or 1.2882 (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 ) 1241235.6450.0091.0 6243735.4810.0091.0 11246235.5630.0091.0

FCC ID: GSS-WL850FJB Report No.: RF931018L101Issued: Oct. 27, 2004 FCC TEST REPORT REPORT NO.: RF931018L10 MODEL NO.: WL-850FJB RECEIVED: Oct. 18, 2004 TESTED: Oct. 20 ~ Oct. 21, 2004 APPLICANT: ViewSonic Corp. ADDRESS: 381 Brea Canyon Rd., Walnut, CA. 91789, U.S.A. ISSUED BY: Advance Data Technology Corporation LAB ADDRESS:No. 47, 14th Ling, Chia Pau Tsuen, Lin Kou Hsiang 244, Taipei Hsien, Taiwan, R.O.C. TEST LOCATION: No. 19, Hwa Ya 2 nd Rd., Wen Hwa Tsuen, Kwei Shan Hsiang, Taoyuan Hsien 333, 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, A2LA or any government agencies. The test results in the report only apply to the tested sample. 0528 ILAC MRA No. 2177-01 FCC ID: GSS-WL850FJB Report No.: RF931018L102Issued: Oct. 27, 2004 Table of Contents 1CERTIFICATION.............................................................................................................4 2SUMMARY OF TEST RESULTS....................................................................................5 2.1MEASUREMENT UNCERTAINTY.................................................................................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 3.5 CONFIGURATION OF SYSTEM UNDER TEST............................................................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 4.1.4DEVIATION FROM TEST STANDARD........................................................................10 4.1.5TEST SETUP.................................................................................................................11 4.1.6EUT OPERATING CONDITIONS..................................................................................11 4.1.7TEST 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 4.2.4DEVIATION FROM TEST STANDARD........................................................................20 4.2.5TEST SETUP................................................................................................................21 4.2.6EUT OPERATING CONDITIONS.................................................................................21 4.2.7TEST RESULTS............................................................................................................22 4.2.8TEST RESULTS (A)......................................................................................................24 4.2.9TEST RESULTS (B)......................................................................................................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: GSS-WL850FJB Report No.: RF931018L103Issued: Oct. 27, 2004 4.3.7TEST RESULTS (A)......................................................................................................32 4.3.8TEST RESULTS (B)......................................................................................................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 OP…

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FCC ID: GSS-WL850FJB Report No.: RF931018L1053Issued: Oct. 27, 2004 4.6 BAND EDGES MEASUREMENT 4.6.1 LIMITS OF BAND EDGES MEASUREMENT Below –20dB of the highest emission level of operating band (in 100kHz Resolution Bandwidth). 4.6.2 TEST INSTRUMENTS Description & ManufacturerModel No.Serial No.Calibrated Until SPECTRUM ANALYZERFSEK30100049Aug. 12, 2005 NOTE: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to NML/ROC and NIST/USA. 4.6.3 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 100kHz with suitable frequency span including 100MHz bandwidth from band edge. The band edges was measured and recorded. 4.6.4 DEVIATION FROM TEST STANDARD No deviation 4.6.5 EUT OPERATING CONDITION Same as Item 4.3.6 FCC ID: GSS-WL850FJB Report No.: RF931018L1054Issued: Oct. 27, 2004 4.6.6 TEST RESULTS The spectrum plots are attached on the following 8 pages. D2 line indicates the highest level, D1 line indicates the 20dB offset below D2. It shows compliance with the requirement in part 15.247(C). 4.6.7 TEST RESULTS(A) NOTE: The band edge emission plot of CCK technique on the following 1~2 pages show 51.66dB delta between carrier maximum power and local maximum emission in restrict band (2.3866GHz). The emission of carrier strength list in the test result of channel 1 at the item 4.2.8 is 102.63dBuV/m, so the maximum field strength in restrict band is 102.63-51.66=50.97dBuV/m which is under 54dBuV/m limit. The band edge emission plot of CCK technique on the following 3~4 pages show 52.88dB delta between carrier maximum power and local maximum emission in restrict band (2.4981GHz). The emission of carrier strength list in the test result of channel 11 at the item 4.2.8 is 101.36dBuV/m, so the maximum field strength in restrict band is 101.36-52.88=48.48dBuV/m which is under 54dBuV/m limit. 4.6.8 TEST RESULTS(B) NOTE: The band edge emission plot of OFDM technique on the following 5~6 pages show 46.14dB delta between carrier maximum power and local maximum emission in restrict band (2.3774GHz). The emission of carrier strength list in the test result of channel 1 at the item 4.2.9 is 98.36dBuV/m, so the maximum field strength in restrict band is 98.36-46.14=52.22dBuV/m which is under 54dBuV/m limit. The band edge emission plot of OFDM technique on the following 7~8 pages show 44.71dB delta between carrier maximum power and local maximum emission in restrict band (2.4845GHz). The emission of carrier strength list in the test result of channel 11 at the item 4.2.9 is 97.18dBuV/m, so the maximum field strength in restrict band is 97.18-44.71=52.47dBuV/m which is under 54dBuV/m limit. FCC ID: GSS-WL850FJB Report No.: RF931018L1055Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1056Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1057Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1058Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1059Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1060Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1061Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1062Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1063Issued: Oct. 27, 2004 4.7 ANTENNA REQUIREMENT 4.7.1 STANDARD APPLICABLE For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247 (b), if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. 4.7.2 ANTENNA CONNECTED CONSTRUCTION The antenna used in this product is Printed monopole antenna with UFL connector. And the maximum Gain of this antenna is 1.1dBi. FCC ID: GSS-WL850FJB Report No.: RF931018L1064Issued: Oct. 27, 2004 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: GSS-WL850FJB Report No.: RF931018L1065Issued: Oct. 27, 2004 RADIATED EMISSION TEST FCC ID: GSS-WL850FJB Report No.: RF931018L1066Issued: Oct. 27, 2004 FCC ID: GSS-WL850FJB Report No.: RF931018L1067Issued: Oct. 27, 2004 6 INFORMATION ON THE TESTING LABORATORIES We, ADT Corp., were founded in 1988 to provide our best service in EMC, Radio, Telecom and Safety consultation. Our laboratories are accredited and approved by the following approval agencies according to ISO/IEC 17025, Guide 25 or EN 45001: USAFCC, NVLAP, UL, A2LA GermanyTUV Rheinland JapanVCCI NorwayNEMKO CanadaINDUSTRY CANADA , CSA R.O.C.CNLA, BSMI, DGT NetherlandsTelefication SingaporePSB , GOST-ASIA(MOU) RussiaCERTIS(MOU) Copies of accreditation certificates of our laboratories obtained from approval agencies can be downloaded from our web site: www.adt.com.tw/index.5/phtml. If you have any comments, please feel free to contact us at the following: Linko EMC/RF Lab: Tel: 886-2-26052180 Fax: 886-2-26052943 Hsin Chu EMC/RF Lab: Tel: 886-3-5935343 Fax: 886-3-5935342 Hwa Ya EMC/RF/Safety/Telecom Lab: Tel: 886-3-3183232 Fax: 886-3-3185050 Linko RF Lab. Tel: 886-3-3270910 Fax: 886-3-3270892 Web Site: www.adt.com.tw The address and road map of all our labs can be found in our web site also. Report Format Version 1.5