2ACZO-WIFI232D2AEmbedded WiFi Module

USR-WIFI232-D2UserManualwww.usriot.com [email protected] USR-WIFI232- USR-WIFI232- USR-WIFI232- USR-WIFI232-D2 D2 D2 D2 Embedded Embedded Embedded EmbeddedWiFi WiFi WiFi WiFiModule Module Module ModuleUser User User UserManual Manual Manual Manual Version：V1.0.0 Remarks: Remarks: Remarks: Remarks:ThismoduleisapplicabletoUSR-WIFI232-D2.ForOthermodulespleaserefertothe correspondingdocument. USR-WIFI232-D2UserManualwww.usriot.com [email protected] Table Table Table TableOf Of Of OfContents Contents Contents Contents 1QuickStart..........................................................................................................................................6 1.1Hardwareconnect...................................................................................................................6 1.2Networkconnection.................................................................................................................6 1.3Communicationtest.................................................................................................................7 2ProductOverview...............................................................................................................................8 2.1GeneralDescription.................................................................................................................8 1QuickStart..........................................................................................................................................6 1.1Hardwareconnect...................................................................................................................6 1.2Networkconnection.................................................................................................................6 1.3Communicationtest.................................................................................................................7 2ProductOverview...............................................................................................................................8 2.1GeneralDescription.................................................................................................................8 2.2DeviceFeatures......................................................................................................................9 2.3DeviceParemeters................................................................................................................10 2.4KeyApplication......................................................................................................................10 2.5PackageInformation.............................................................................................................11 2.5.1RecommendedReflowProfile....................................................................................11 2.5.2DeviceHandlingInstruction(ModuleICSMTPreparation)......................................11 2.5.3ShippingInformation...................................................................................................11 3HardwareIntroduction.....................................................................................................................12 3.1PinsDefinition........................................................................................................................12 3.1.1USR-WIFI232-D2PinsDefinition...............................................................................12 3.1.2USR-WIFI232-D2Size...............................................................................................14 3.2Antenna..................................................................................................................................14 3.2.1On-boardChipAntenna..............................................................................................14 3.2.2ExternalAntenna........................................................................................................15 3.3EvaluationKit.........................................................................................................................16 3.4HardwareReferenceDesign................................................................................................17 3.4.1HardwareTypicalApplication.....................................................................................17 3.4.210/100MEthernetInterface.......................................................................................18 3.4.3UARTInterface...........................................................................................................18 3.4.4PowerInterface...........................................................................................................19 4ModulesFunctionDescription.........................................................................................................19 4.1Userconfigurationprocess...................................................................................................19 4.2Workingmode.......................................................................................................................20 4.2.1TransparentTransmissionMode...............................................................................20 4.2.2Serialcommandmode...............................................................................................20 4.2.3GPIOmode.................................................................................................................22 4.2.4HTTPDClientmode...................................................................................................22 4.3WirelessNetworking.............................................................................................................23 USR-WIFI232-D2UserManualwww.usriot.com [email protected] 4.3.1STA.......................................................................................…

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FCC INFORMATION (additional): Limited Channels fixed for use in the US: IEEE 802.11b or 802.11g or 802.11n(HT20) operation of this product in the U.S. is firmware-limited to Channel 1 through 11. IEEE 802.11n(HT40) operation of this product in the U.S. is firmware-limited to Channel 3 through 9. OEM INTEGRATION INSTRUCTIONS: This device is intended only for OEM integrators under the following conditions: The antenna must be installed such that 20 cm is maintained between the antenna and users. The transmitter module may not be co-located with any other transmitter or antenna. The module shall be only used with the external antenna(s) that has been originally tested and certified with this module. As long as 3 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 requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). Validity of using the module certification: In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. Custom design antennas may be used, however the OEM installer must following the FCC 15.21 requirements and verify if additional or new FCC authorization will be necessary. End product labeling: The final end product must be labeled in a visible area with the following: “Contains FCC ID: 2ACZO-WIFI232D2A”. Information that must be placed in the end user manual: The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user's manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual.

Jinan USR IOT Technology Limited FCC Confidentiality Request Number:CF303 Version:V05 Date: 21-05-2012 (Permanent or also called long term confidentiality is the normal method to keep certain docuements confidential, and may apply to schematics, block diagrams, operational description and bill of materials.) To: Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Pursuant to 47 CFR Section 0.459(a) & (b), we, (the applicant / grantee) Company nameJinan USR IOT Technology Limited Address#1-724~729, Huizhan Guoji Cheng, Gaoxin District, CityJinan City, Shandong Province, 250101, CountryChina request for this certification filing under: Grantee CodeProduct Number FCC ID:2ACZO-WIFI232D2A to maintainpermanent confidentialityfor the following documents submitted within this application: (please cross what is applicable, or add other documents, provide the file name and description) ExhibitFile NameDescription √ Operational DescriptionOperational Descriptionexplaining the functioning of the block diagram √ Block DiagramsBlock Diagramsshowing the systematic building blocks of the EUT √ Schematics DiagramsSchematicsshowing components, their values and interconnection Bill of MaterialsList of components used on the PCB’s of the EUT Above materials crossed contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. We understand that pursuant to 47 CFR section 0.457(d)(1)(ii) disclosure of the applicant and all accompanying documentation will not be made before the date of the grant. The documents indicated as confidential above, are not publicly available elsewhere. Attestation: City and Country:Date:Name: (this must be a person) Function:Signature: (or official company stamp) Jinan, China2014-08-18 Gu XinGeneral Manager

Jinan USR IOT Technology Limited FCC Authorization Letter Number:CF304 Version:V03 Date: 01-08-2011 We, (the approval holder) Company nameJinan USR IOT Technology Limited Address#1-724~729, Huizhan Guoji Cheng, Gaoxin District, CityJinan City, Shandong Province, 250101, CountryChina declare that the following representative (agent): Name (person)Tom Chen Company nameShenzhen Anbotek Compliance Laboratory Limited Addresss1/F., Building 1, SEC Industrial Park, No.0409 Qianhai Road, Nanshan District, CityShenzhen CountryChina is hereby authorized to apply the following equipment for certification on our behalf: Product DescriptionEmbedded WIFI Module Type or Model(s)USR-WIFI232-D2a, USR-WIFI232-D2b, USR-WIFI232-A, USR-WIFI232-B, USR-WIFI232-Ca, USR- WIFI232-Cb Tradename or Brand(s)USR IOT We also authorize Teleconformity (Mr. M. Koop, Manager Certification, Address: Rietven 31, 7534NH Enschede, the Netherlands) to apply and sign this application for certification, registration or filing on our behalf (as representative agent or certifier). Attestation: City and Country:Date:Name: (this must be a person) Function:Signature: (or official company stamp) Jinan, China2014-08-22 Gu XinGeneral Manager

Figure 1 The EUT-Overall View (In the Host) Figure 2 The PCB-Front View (on the Evaluation Kit) The EUT is placed in the host. The module is placed on the Evaluation Kit. Figure 3 The PCB-Back View (on the Evaluation Kit)

Label Location On EUT

Model Name: Embedded WIFI Module Model No.: USR-WIFI232-D2a FCC ID: 2ACZO-WIFI232D2A

Figure 4 The EUT-Front View (With Shielding) Figure 5 The EUT-Front View (Without Shielding) Figure 6 The EUT-Back View

MPE Calculation FCC ID: 2ACZO-WIFI232D2A Remark: Average ≤ Peak, which means that calculating the power density applying Peak power is worst case. The worst case operation mode generating the highest power in each frequency range is taken for calculation. Frequency range:2412-2462MHzTypical use distance: d ≥20cm Power density limit for mobile devices at 2.4 GHz: S ≤1mW/cm 2 Maximum measured conducted power (Peak): Pconducted =18.29dBm =67.45mW Antenna Gain: G = 0.4dBi =1.1on the linear scale Calculation: P radiated = P conducted + G linear =18.29dBm +0.4dBi =18.69dBm =73.96mW Power density S = (P radiated ) / (4π x d 2 ) =73.96/5026 =0.0147mW/cm 2 <1=> below limit Frequency range:2422-2452MHzTypical use distance: d ≥20cm Power density limit for mobile devices at 2.4 GHz: S ≤1mW/cm 2 Maximum measured conducted power (Peak): Pconducted =17.02dBm =50.35mW Antenna Gain: G = 0.4dBi =1.1on the linear scale Calculation: P radiated = P conducted + G linear =17.02dBm +0.4dBi =17.42dBm =55.21mW Power density S = (P radiated ) / (4π x d 2 ) =55.21/5026 =0.0110mW/cm 2 <1=> below limit

Shenzhen Anbotek Compliance Laboratory Limited FCC ID: 2ACZO-WIFI232D2A Page 1 of 89 Report No.: R011407007E Shenzhen Anbotek Compliance Laboratory Limited Tel:(86)755-26066544 Fax:(86)755-26014772 www.anbotek.com FCC TEST REPORT for Jinan USR IOT Technology Limited Embedded WIFI Module Model No.: USR-WIFI232-D2a, USR-WIFI232-D2b, USR-WIFI232-A, USR-WIFI232-B, USR-WIFI232-Ca, USR-WIFI232-Cb Report Number: R011407007E Date of Test:Jul. 10~Aug. 18, 2014 Date of Report:Aug. 19, 2014 Prepared fo r: Jinan USR IOT TechnologyLimited Address: #1-724~729, Huizhan Guoji Cheng, Gaoxin District, Jinan City, Shandong Province, 250101, China Prepared By: Shenzhen Anbotek Compliance LaboratoryLimited Address: 1/F., Building 1, SEC Industrial Park, No.0409 Qianhai Road, Nanshan District, Shenzhen, Guangdong, China Tel: (86) 755-26066544 Fax: (86) 755-26014772 Shenzhen Anbotek Compliance Laboratory Limited FCC ID: 2ACZO-WIFI232D2A Page 2 of 89 Report No.: R011407007E Shenzhen Anbotek Compliance Laboratory Limited Tel:(86)755-26066544 Fax:(86)755-26014772 www.anbotek.com TABLE OF CONTENT Description Page Test Report 1. GENERAL INFORMATION......................................................................................................4 1.1. Description of Device (EUT)................................................................................................................4 1.2. Auxiliary Equipment Used during Test................................................................................................ 5 1.3. Description of Test Facility.................................................................................................................. 5 1.4. Measurement Uncertainty.....................................................................................................................5 2. TEST METHODOLOGY............................................................................................................6 2.1. Summary of Test Results......................................................................................................................6 2.2. Description of Test Modes....................................................................................................................6 2.3. List of channels:....................................................................................................................................7 3. CONDUCTED EMISSION TEST.............................................................................................. 8 3.1. Block Diagram of Test Setup................................................................................................................8 3.2. Power Line Conducted Emission Measurement Limits (15.207).........................................................8 3.3. Configuration of EUT on Measurement............................................................................................... 8 3.4. Operating Condition of EUT................................................................................................................ 8 3.5. Test Procedure...................................................................................................................................... 9 3.6. Test equipment......................................................................................................................................9 3.7. Power Line Conducted Emission Measurement Results...................................................................... 9 4. FCC PART 15.247 REQUIREMENTS FOR DSSS & OFDM MODULATION................. 12 4.1 Test Setup.............................................................................................................................................12 4.2 6dB Bandwidth.................................................................................................................................... 12 4.3. Maximum Peak output power test...................................................................................................... 20 4.4. Band Edges Measurement...................................................................................................................28 4.5. Peak Power Spectral Density..............................................................................................................65 4.6. Radiated Emissions.............................................................................................................................73 5. PHOTOGRAPH......................................................................................................................... 84 5.1. Photo of Conducted Emission Measurement......................................................................................84 5.2. Photo of Radiation Emission Test.......................................................................................................84 APPENDIX I (EXTERNAL PHOTOS)........................................................................................86 APPENDIXII(INTERNAL PHOTOS)...................................................................................... 88 Appendix I (2 Pages) Appendix II (2 Pages) Shenzhen Anbotek Compliance Laboratory Limited FCC ID: 2ACZO-WIFI232D2A Page 3 of 89 Report No.: R011407007E Shenzhen Anbotek Compliance Laboratory Limited Tel:(86)755-26066544 Fax:(86)755-26014772 www.anbotek.com TEST REPORT Applicant: Jinan USR IOT Technology Limited Manufacturer: Jinan USR IOT Technology Limited EUT: Embedded WIFI Module Model No.: USR-WIFI232-D2a, USR-WIFI232-D2b, USR-WIFI232-A, USR-WIFI232-B, USR-WIFI232-Ca, USR-WIFI232-Cb Serial No.: N.A. Trade Mark: USR IOT Rating: DC 3.3V  5% Measurement Procedure Used: FCC Part15 Subpart C, Paragraph 15.247 The device described above is tested by Shenzhen Anbotek Compliance Laboratory Limited to determine the maximum emissionlevels emanating from the device and the severe levels of the device can endure and itsperformance criterion. The measureme…

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1. Photo of Conducted Emission Measurement 2. Photo of Radiation Emission Test