EW4DWMW014WiFi Module

User Manual MITSUMI WiFi Module MODEL DWM-W014 The purpose of this manual is to explain correct way how to integrate module DWM-W014 to the end product. It includes procedures that shall assist you to avoid unforeseen problems. This manual presents information that shows how module and OEM product, where module integrated, complies with regulations in certain regions. Any modifications, not expressly approved by the manufacturer could void the authority to operate in these regions. The MITSUMI WiFi Module, model DWM-W014 has to be installed and used in accordance with the technical description/installation instructions provided by the manufacturer. For detail information concerning type approval of this module (e.g. where this module is already pre-approved) please contact the authorized local distributor or the manufacturer. The system may only be implemented in the configuration that was authorized. Note that any changes or modifications to this equipment not expressly approved by the manufacturer could void the user’s authority to operate this equipment. Regulatory Information Operational Information Wireless Interoperability The end product integrating this module is designed to be interoperable with any wireless LAN product that is based on direct sequence spread spectrum (DSSS) and orthogonal frequency division multiplexing (OFDM) radio technology and to comply with the following standards. ･IEEE Std 802.11b Standard on 2.4GHz Wireless LAN ･IEEE Std 802.11g Standard on 2.4GHz Wireless LAN Safety The end product integrating this module, like other radio devices, emits radio frequency electromagnetic energy. The level of energy emitted by this device, however, is less than the electromagnetic energy emitted by other wireless devices such as mobile phones. The end product integrating this module operates within the guidelines found in radio frequency safety standards and recommendations. These standards and recommendations reflect the consensus of the scientific community and result from deliberations of panels and committees of scientists who continually review and interpret the extensive research literature. In some situations or environments, the use of the end product integrating this module may be restricted by the proprietor of the building or responsible representatives of the applicable organization. Examples of such situations include the following: ･Using the end product integrating this module onboard airplanes, or ･Using the end product integrating this module in any other environment where the risk of interference with other devices or services is perceived or identified as being harmful. If uncertain of the policy that applies to the use of wireless devices in a specific organization or environment (an airplane, for example), ask for authorization to use the end product integrated into this module before turning it on. USA-Federal Communications Commission (FCC) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by tuning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the distance between the equipment and the receiver. -Connect the equipment to outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced 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 not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Labeling MITSUMI WiFi module DWM-W014 labelled as below. FCC ID: EW4DWMW014 The proposed with FCC ID label format is to be placed on the module. If FCC ID is not visible when the module is installed into the system, “Contains FCC ID: EW4DWMW014” shall be placed on the outside of final host system. Caution: Exposure to Radio Frequency Radiation. To comply with RF exposure compliance requirements, a separation distance of at Least 20 cm must be maintained between the antenna of this device and all persons. This device must not be co-located or operating in conjunction with any other antenna or transmitter. Canada-Industry Canada (IC) This device complies with RSS 210 of Industry Canada. Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of this device. L ‘ utilization de ce dispositif est autorisée seulement aux conditions suivantes : (1) il ne doit pas produire de brouillage et (2) l’ utilisateur du dispositif doit étre prêt à accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fomctionnement du dispositif. The term “IC” before the equipment certification number only signifies that the Industry Canada technical specifications were met. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (EIRP) is not more than that required for successful communication.…

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1 Chris Harvey From: September Radecki [[email protected]] Sent: Wednesday, October 10, 2007 4:36 PM To: Chris Harvey Cc: Michael Heckrotte; Mika Kaneko Subject: RE: Mitsumi Electric Co., Ltd., FCC ID: EW4DWMW014, Assessment NO.: AN07T7243, Notice#1 FCC Modular characteristics_Mi... Hi Chris, Here are the replies to your questions on this application. 1. The Modular Approval request letter seems to imply that the device can be provided to the OEM without the antennas, where the test report documents 3 different antennas that could be provided with this module. Please update the Modular Approval cover letter to clarify that compliance with 15.203 compliance is ensured by requiring one of the approved antennas must be used with this module. <CCS Answer:> Please see revised Modular Approval exhibit, attached. 2. Please confirm that the Main and Auxiliary antennas are only using diversity, where only one antenna will transmit at any one time. <CCS Answer:> Confiemed, that the Main and Auxiliary antennas are only using diversity, where only one antenna will transmit at any one time. Thanks. Best regards, September September Radecki Compliance Certification Services 47173 Benicia Street Fremont, CA 94538 phone: 1-510-771-1090 fax: 1-510-661-0888 [email protected] <mailto:[email protected]> -----Original Message----- From: Chris Harvey [mailto:[email protected]] Sent: Wednesday, October 10, 2007 8:02 AM To: September Radecki Subject: FW: Mitsumi Electric Co., Ltd., FCC ID: EW4DWMW014, Assessment NO.: AN07T7243, Notice#1 FYI -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Wednesday, October 10, 2007 11:04 AM To: [email protected] Cc: [email protected]; [email protected] Subject: Mitsumi Electric Co., Ltd., FCC ID: EW4DWMW014, Assessment NO.: AN07T7243, Notice#1 Dear Michael Heckrotte, 2 You are listed as the Technical Contact for the above referenced TCB application. The following item(s) need(s) to be resolved before the review can be continued: 1. The Modular Approval request letter seems to imply that the device can be provided to the OEM without the antennas, where the test report documents 3 different antennas that could be provided with this module. Please update the Modular Approval cover letter to clarify that compliance with 15.203 compliance is ensured by requiring one of the approved antennas must be used with this module. 2. Please confirm that the Main and Auxiliary antennas are only using diversity, where only one antenna will transmit at any one time. The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information within 30 days of the original e-mail date may result in application dismissal and forfeiture of the filing fee. 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 e-mail address listed below the name of the sender. Best regards, Chris Harvey [email protected]

Mitsumi Electric Co., Ltd. FCC ID: EW4DWMW014 Request for transmitter modular approval Transmitter Module Characteristics Item Requirements Does the EUT meet the requirement? 1 Have its own RF shielding Device is equipped with Metal shielding to cover RF section. Refer to external photos 2 Have buffered modulation/data inputs (if such inputs are provided), All inputs to the modules are buffered through logic (BCM4318) inputs. 3 Have it own power supply regulation Internal 1.8V power regulator. Refer to Block diagram 4 Meet the antenna requirements of Section 15.203 The Device is approved with three different antennas; MITSUMI_DCA-E04, Parrot_PIFA double connect2, or Parrot_PIFA connect1. One of these approved antennas will be used with this device. 5 Be tested in a stand-alone configuration, i.e., the antenna, AC or DC power and data input/output lines must be connected to the module but, the module must not be inside another case during testing Device was tested outside of the desktop PC for full modular approval. Refer to setup photos. 6 Be labeled with its own FCC ID number, and if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. The proposed FCC ID label format is to be placed on the module. If FCC ID is not visible when the module is installed into the system, “Contains FCC ID: EW4DWMW014” shall be placed on the outside of final host system. “EW4DWMW014 is the ID of the module. 7 The modular transmitter is manufactured so that the user cannot influence the operation of the transmitter that will operate outside of the scope of the regulations. Refer to “User’s Guide” Exhibit 8 Address compliance with the Commission's RF exposure limits in Sections 1.1310 and 2.1093. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF exposure compliance in accordance with Section 15.247(b)(4). Meet RF exposure compliance requirement

PROPOSED FCC/IC ID LABEL AND LOCATION Label Format for Host Device Contains IC: 4250A-DWMW014 Contains FCC ID: EW4DWMW014

REPORT NO: 07J11256-1 DATE: OCTOBER 8, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 106 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. 10. MAXIMUM PERMISSIBLE EXPOSURE FCC RULES §1.1310 The criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in §1.1307(b), except in the case of portable devices which shall be evaluated according to the provisions of §2.1093 of this chapter. REPORT NO: 07J11256-1 DATE: OCTOBER 8, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 107 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. IC RULES IC Safety Code 6, Section 2.2.1 (a) A person other than an RF and microwave exposed worker shall not be exposed to electromagnetic radiation in a frequency band listed in Column 1 of Table 5, if the field strength exceeds the value given in Column 2 or 3 of Table 5, when averaged spatially and over time, or if the power density exceeds the value given in Column 4 of Table 5, when averaged spatially and over time. REPORT NO: 07J11256-1 DATE: OCTOBER 8, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 108 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. CALCULATIONS Given E = √ (30 * P * G) / d and S = E ^ 2 / 3770 where E = Field Strength in Volts/meter P = Power in Watts G = Numeric antenna gain d = Distance in meters S = Power Density in milliwatts/square centimeter Combining equations, rearranging the terms to express the distance as a function of the remaining variables, changing to units of Power to mW and Distance to cm, and substituting the logarithmic form of power and gain yields: d = 0.282 * 10 ^ ((P + G) / 20) / √ S where d = MPE distance in cm P = Power in dBm G = Antenna Gain in dBi S = Power Density Limit in mW/cm^2 Rearranging terms to calculate the power density at a specific distance yields S = 0.0795 * 10 ^ ((P + G) / 10) / (d^2) The power density in units of mW/cm^2 is converted to units of W/m^2 by multiplying by a factor of 10. REPORT NO: 07J11256-1 DATE: OCTOBER 8, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 109 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. LIMITS From FCC §1.1310 Table 1 (B), the maximum value of S = 1.0 mW/cm^2 From IC Safety Code 6, Section 2.2 Table 5 Column 4, S = 10 W/m^2 RESULTS (MPE distance equals 20 cm) DIPOLE, 2.21dBi ANTENNA INVERTED-F, 1.38dBi ANTENNA NOTE: For mobile or fixed location transmitters, the minimum separation distance is 20 cm, even if calculations indicate that the MPE distance would be less. ModeBandMPEOutputAntennaFCC PowerIC Power DistancePowerGainDensityDensity (cm)(dBm)(dBi)(mW/cm^2)(W/m^2) WLAN2.4 GHz20.018.742.210.020.25 ModeBandMPEOutputAntennaFCC PowerIC Power DistancePowerGainDensityDensity (cm)(dBm)(dBi)(mW/cm^2)(W/m^2) WLAN2.4 GHz20.019.091.380.020.22

FCC CFR47 PART 15 SUBPART C INDUSTRY CANADA RSS-210 ISSUE 7 CERTIFICATION TEST REPORT FOR WIFI MODULE MODEL NUMBER: DWM-W014 REPORT NUMBER: 07J11256-1 ISSUE DATE: OCTOBER 1, 2007 Prepared for MITSUMI ELECTRIC CO., LTD. 1601 SAKAI, ATSUGI-SHI KANAGAWA, 243-8533, JAPAN Prepared by COMPLIANCE CERTIFICATION SERVICES 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888 REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 2 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. Revision History Rev. Issue Date Revisions Revised By -- 10/01/2007 Initial Issue M. Heckrotte REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 3 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS.................................................................................... 5 2. TEST METHODOLOGY ........................................................................................................ 6 3. FACILITIES AND ACCREDITATION.................................................................................... 6 4. CALIBRATION AND UNCERTAINTY .................................................................................. 6 4.1. MEASURING INSTRUMENT CALIBRATION ................................................................ 6 4.2. MEASUREMENT UNCERTAINTY ................................................................................. 6 5. EQUIPMENT UNDER TEST ................................................................................................. 7 5.1. DESCRIPTION OF EUT ................................................................................................. 7 5.2. MAXIMUM OUTPUT POWER ........................................................................................ 7 5.3. DESCRIPTION OF AVAILABLE ANTENNAS ................................................................ 7 5.4. SOFTWARE AND FIRMWARE ...................................................................................... 7 5.5. WORST-CASE CONFIGURATION AND MODE............................................................ 7 5.6. DESCRIPTION OF TEST SETUP .................................................................................. 8 6. TEST AND MEASUREMENT EQUIPMENT ....................................................................... 10 7. CHANNEL TEST RESULTS ............................................................................................... 11 7.1. 802.11b MODE IN THE 2.4 GHz BAND ....................................................................... 11 7.1.1. 6 dB BANDWIDTH ................................................................................................ 11 7.1.2. 99% BANDWIDTH ................................................................................................ 15 7.1.3. OUTPUT POWER ................................................................................................. 19 7.1.4. AVERAGE POWER .............................................................................................. 23 7.1.5. POWER SPECTRAL DENSITY ............................................................................ 24 7.1.6. CONDUCTED SPURIOUS EMISSIONS............................................................... 28 7.2. 802.11g MODE IN THE 2.4 GHz BAND ....................................................................... 35 7.2.1. 6 dB BANDWIDTH ................................................................................................ 35 7.2.2. 99% BANDWIDTH ................................................................................................ 39 7.2.3. OUTPUT POWER ................................................................................................. 43 7.2.4. AVERAGE POWER .............................................................................................. 47 7.2.5. POWER SPECTRAL DENSITY ............................................................................ 48 7.2.6. CONDUCTED SPURIOUS EMISSIONS............................................................... 52 8. RADIATED TEST RESULTS .............................................................................................. 59 8.1. LIMITS AND PROCEDURE ......................................................................................... 59 8.1.1. TRANSMITTER ABOVE 1 GHz FOR 802.11b MODE IN THE 2.4 GHz BAND .... 60 8.1.2. TRANSMITTER ABOVE 1 GHz FOR 802.11g MODE IN THE 2.4 GHz BAND .... 78 8.2. RECEIVER ABOVE 1 GHz........................................................................................... 96 8.2.1. RECEIVER ABOVE 1 GHz IN THE 2.4 GHz BAND.............................................. 96 8.3. WORST-CASE BELOW 1 GHz .................................................................................... 98 REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 4 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. 9. AC POWER LINE CONDUCTED EMISSIONS ................................................................. 102 10. MAXIMUM PERMISSIBLE EXPOSURE ....................................................................... 106 11. SETUP PHOTOS ........................................................................................................... 110 REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 5 of 116 CO…

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REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 110 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. 11. SETUP PHOTOS ANTENNA PORT CONDUCTED RF MEASUREMENT SETUP ANTENNA PORT CONDUCTED PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 111 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. RADIATED RF MEASUREMENT SETUP FOR PORTABLE CONFIGURATION DIPOLE, 2.21dBi ANYENNA_WORST-CASE CONFIGURATION EUT AT X-AXIS & ANTENNA AT Z-AXIS - FRONT PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 112 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. EUT AT X-AXIS & ANTENNA AT Z-AXIS – CLOSE UP PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 113 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. INVERTED-F, 2.21dBi ANTENNA_WORST-CASE CONFIGURATION EUT AT Y-AXIS & ANTENNA AT X, Z-AXIS - FRONT PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 114 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. EUT AT Y-AXIS & ANTENNA AT X, Z-AXIS - CLOSE-UP PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 115 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. POWERLINE CONDUCTED EMISSIONS MEASUREMENT SETUP LINE CONDUCTED FRONT PHOTO REPORT NO: 07J11256-1 DATE: OCTOBER 1, 2007 FCC ID: EW4DWMW014 IC: 4250A-DWMW014 Page 116 of 116 COMPLIANCE CERTIFICATION SERVICES FORM NO: CCSUP4031A 47173 BENICIA STREET, FREMONT, CA 94538, USA TEL: (510) 771-1000 FAX: (510) 661-0888 This report shall not be reproduced except in full, without the written approval of CCS. END OF REPORT LINE CONDUCTED BACK PHOTO