O6M-WM25311 Mbps Wireless WLAN Mini Module

11Mbps WLAN Mini Module Quick Guide Rev 0.9 Federal Communication Commission Interference State- ment 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 reasonable protection against harmful interference in a residential installa- tion. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interfer- ence will not occur in a particular installation. If this equipment does cause harmful interference to radio or televi- sion reception, which can be determined by turning the equipment off and on, the user 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 experienced radio/TV technician for help. WLAN Mini module quick guide ii FCC Caution: Any changes or modifications not expressly ap- proved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation 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. IMPORTANT NOTE: FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled 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 con- junction with any other antenna or transmitter. Preface iii This device is intended only for OEM integrators under the fol- lowing conditions: 1) The antenna must be installed such that 20 cm is maintained be- tween the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance re- quirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be re- sponsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users (for example access points, routers, wireless ADSL modems, and similar equipment). The final end product must be labeled in a visible area with the following: “Con- tains TX FCC ID: O6M-WM253”. WLAN Mini module quick guide iv Manual Information That Must be Included The users manual for end users must include the following infor- mation in a prominent location “ IMPORTANT NOTE: To comply with FCC RF exposure compliance requirements, the an- tenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Preface v Table of contents CHAPTER 1 Introduction Features What is Wireless LAN? LAN Modes Notes on wireless LAN configuration CHAPTER 2 Hardware installation Hardware description Status LEDs CHAPTER 3 Using the Wireless Utility Installation & description APPENDIX A Troubleshooting Q&A APPENDIX B Specifications 1 Chapter 1 Introduction Thank you for using the Wireless LAN module. This high-speed Wireless LAN module provides you with an innovative wireless net- working solution. The module is easy to set up and use. With this innovative wireless technology, you can share files and printers on the network—without inconvenient wires! Now you can carry the LAN in your pocket! Features • Wire-free access to networked resources from anywhere beyond the desktop • Low interference & high susceptibility guarantee reliable per- formance • Delivers data rate up to 11 Mbps • Dynamically shifts between 11, 5.5, 2, and 1 Mbps network speed, based on signal strength, for maximum availability and reliability of connection • Support two external antennas with LEDs indicating Power and Link • Uses 2.4GHz frequency band, which complies with worldwide requirement • Used on embedded operating systems • Ensures great security by providing the Wired Equivalent Privacy (WEP) defined in the IEEE 802.11 standard WLAN Mini module quick guide 2 What is Wireless LAN? Wireless Local Area Network (WLAN) systems offer a great num- ber of advantages over traditional wired systems. WLANs are flexible and easy to setup and manage. They are also more eco- nomical than wired LAN systems. Using radio frequency (RF) technology, WLANs transmit and re- ceive data through the air. WLANs combine data connectivity with user mobility. For example, users can roam from a confer- ence room to their office without being disconnected from the LAN. Using WLANs, users can conveniently access shared information, and network administrators can configure and augment networks without installing or moving network cables. WLAN technology provides users with many convenient and cost saving features: • Mobility: WLANs provide LAN us…

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American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 September 23, 2002 RE: BROMAX COMMUNICATIONS FCC ID: O6M-WM253 After a review of the submitted information, I have a few comments on the above referenced Application. 1) The EUT appears to contain an area that could allow an external antenna to be attached. Please confirm if this path is not populated with any RF switches, etc. Additionally, this grant will be conditional that the device may only use the one antenna located on the board. 2) The test report does not show any reported measurements above the fundamental. Usually the first few harmonics are measurable and of concern. The device must be tested up to 10 times the highest frequency generated or used. Please comment. 3) Please provide close up photographs of the device as it was tested on the extender board, and also of the extender board as well. 4) The users manual mentions that the device supports 2 chip antennas. However, please comment and also refer to comment 1) above. 5) Please note that since this device is being approved as a modular device, inclusion of the DoC statement is not necessary. The integrator will be responsible for test the end device for Digital device emissions, or as a PC peripheral as necessary for their device. Additionally, the responsible party listed on the DoC statement must be located within the United States. Timothy R. Johnson Examining Engineer Direct Phone: 404-414-8071 mailto: [email protected] The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information may result in application termination. Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not respond to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must submit your documents through the AmericanTCB.com website. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the sender.

Tim, For item 1, the area is just preserved for future modification. We confirm that this path is not populated with any RF switches. For item 2, the measurement of emissions level was too low to be detected above the fundamental. For item 3, we have submitted the photo. Please refer "TSup_O6M-WM253" on your website. For item 4 and 5, please see revised file which has been re-uploaded on your website. To: [email protected] Cc: [email protected] Subject: Review of Bromax Communications, FCC ID: O6M-WM253 9/25/2002file://C:\DOCUME~1\TIMOTH~1.JOH\LOCALS~1\Temp\eud5A.htm

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LABEL LOCATION FOR FCC ID

WM253 Bottom label-revised (355x331x16M jpeg)

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FCC ID: O6M-WM253 ADT No.910828R02 Operational Description The transmitter of the EUT (11Mbps Wireless WLAN Mini Module) is powered by host equipment. The antenna type is Chip antenna and there is no 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. DSSS Information This device is Direct Sequence Spread Spectrum, the data is mixed by pseudorandom code which is an orthogonal code. The mixed data is digital modulated by BPSK and QPSK technique depends on the data rates. The CCK coding is applied for increasing the data rate, and also the processing gain will be increased. The bit rates are 1,2,5.5,11Mbps, the symbol rates are 1,1,1.375,1.375Mbps, the chip rates are always 11Mbps. So, the Chip/symbol is 11,11,8 and 8 respectively. Although is higher bit rate, the processing gain is lower than 10, but the CCK coding used in higher bit rate will provide 2.2dB coding gain.

FCC ID: O6M-WM253 ADT No.: 910828R02 FCC TEST REPORT REPORT NO.: RF910828R02 MODEL NO.: WM253-IF ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT:BROMAX COMMUNICATIONS, INC. ADDRESS: No.20, Kuang Fu Road, Hsinchu Industrial Park Hukou, Hsinchu, Taiwan, R.O.C. ISSUED BY:Advance Data Technology Corporation LAB LOCATION:47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. 0528 Lab Code: 200102-0 FCC ID: O6M-WM253 ADT No.: 910828R02 RF Exposure Measurement (Mobile Device) 1. Introduction 2.4 GHz frequency band is regarded specially as a dangerous band for its heating harmfulness to the human body. That’s why microwave oven is operating in this frequency band. The manufacturer whose product is working in this frequency band is obligatory to prove the harmfulness of his product. 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), and 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. 2. Classification The antenna of the product, as the warning statement on users manual, is at least 20 cm away from the body of the user. Warning statement for keeping 20 cm 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. 3. 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). FCC ID: O6M-WM253 ADT No.: 910828R02 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 30-30061.40.1631.06 300-1500......F/3006 1500-100,000......56 (B)Limits For General Population / Uncontrolled Exposure 30-30027.50.0730.230 300-1500......F/150030 1500-100,000......1.030 F = Frequency in MHz 4. 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 distance r where the MPE limit is reached. Ref. : David K. Cheng, Field and Wave Electromagnetics, Second Edition, Page 640, Eq. (11-133). 5. EUT Operating condition The software provided by Manufacturer enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. FCC ID: O6M-WM253 ADT No.: 910828R02 6. Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber is 0dBi or 1 (numeric). 6.2 Output Power Into Antenna & RF Exposure Distance : CHANNEL CHANNEL FREQUENCY (MHz) OUTPUT POWER TO ANTENNA (mW) MINIMUM ALLOWABLE DISTANCE ( r ) FROM SKIN (Centi-Meter) 1241242.561.84 6243740.551.80 11246237.931.77 The minimum allowable distance is very close to the enclosure of the antenna and is very far away from the human being under normal use condition.

FCC ID: O6M-WM253 Report No.: RF910828R021Issued: September 18, 2002 FCC TEST REPORT REPORT NO.: RF910828R02 MODEL NO.: WM253-IF RECEIVED: August 28, 2002 TESTED: August 27 ~ September 9, 2002 APPLICANT:BROMAX COMMUNICATIONS, INC. ADDRESS:No.20, Kuang Fu Road, Hsin Chu Industrial Park, Hu Kou,Hsin Chu 303, 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 51 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, NVLAP or any government agencies. The test results in the report only apply to the tested sample. 0528 ILAC MRA Lab Code: 200102-0 FCC ID: O6M-WM253 Report No.: RF910828R022Issued: September 18, 2002 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 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 4.1.4TEST SETUP..............................................................................................10 4.1.5EUT OPERATING CONDITIONS................................................................11 4.1.6TEST 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 4.2.4TEST SETUP..............................................................................................21 4.2.5EUT OPERATING CONDITIONS................................................................21 4.2.6TEST RESULTS..........................................................................................22 4.36dB BANDWIDTH MEASUREMENT...........................................................27 4.3.1LIMITS OF 6dB BANDWIDTH MEASUREMENT........................................27 4.3.2TEST INSTRUMENTS................................................................................27 4.3.3TEST PROCEDURE...................................................................................28 4.3.4TEST SETUP..............................................................................................28 4.3.5EUT OPERATING CONDITIONS................................................................28 4.3.6TEST RESULTS..........................................................................................29 4.4MAXIMUM PEAK OUTPUT POWER..........................................................33 4.4.1LIMITS OF MAXIMUM PEAK OUTPUT POWER MEASUREMENT...........33 4.4.2TEST INSTRUMENTS................................................................................33 4.4.3TEST PROCEDURES.................................................................................34 4.4.4TEST SETUP..............................................................................................34 4.4.5EUT OPERATING CONDITIONS................................................................34 FCC ID: O6M-WM253 Report No.: RF910828R023Issued: September 18, 2002 4.4.6TEST RESULTS..........................................................................................35 4.5POWER SPECTRAL DENSITY MEASUREMENT......................................36 4.5.1LIMITS OF POWER SPECTRAL DENSITY MEASUREMENT...................36 4.5.2TEST INSTRUMENTS................................................................................36 4.5.3TEST PROCEDURE...................................................................................37 4.5.4TEST SETUP..............................................................................................37 4.5.5EUT OPERATING CONDITIONS................................................................37 4.5.6TEST RESULTS..........................................................................................38 4.6BAND EDGES MEASUREMENT................................................................42 4.6.1LIMITS OF BAND EDGES MEASUREMENT..............................................42 4.6.2TEST INSTRUMENTS................................................................................42 4.6.3TEST PROCEDURE...................................................................................42 4.6.4EUT OPERATING CONDITION..................................................................43 4.6.5TEST RESULTS..........................................................................................43 4.7ANTENNA REQUIREMENT........................................................................46 4.7.1STANDARD APPLICABLE..........................................................................46 4.7.2ANTE…

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FCC ID: O6M-WM253 Report No.: RF910828R0247Issued: September 18, 2002 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST FCC ID: O6M-WM253 Report No.: RF910828R0248Issued: September 18, 2002 FCC ID: O6M-WM253 Report No.: RF910828R0249Issued: September 18, 2002 RADIATED EMISSION TEST FCC ID: O6M-WM253 Report No.: RF910828R0250Issued: September 18, 2002