2ABN2-BG22A1Bluetooth MODULE

RF-BM-BG22A1 Bluetooth5.2 Module Version 1.0 Shenzhen RF-star Technology Co., Ltd. Sep.10 th , 2020 RF-BM-BG22A1 www.szrfstar.comV1.0 - Sep., 2020 1 Device Overview 1.1 Module Series There are three modules of RF-BM-BG22Ax. All of them are based on Silicon Labs EFR32BG22 series. Because the EFR32BG22 chips are pin-2-pin compatible in package, pins and peripherals, those three modules are pin-2-pin compatible with each other as well. Table 1. Module Specification of RF-BM-BG22Ax Model Chip Model Max. CPU Speed TX Power FLASH RAM Protocol BG22A1 EFR32BG22C112F352GM32-C 38.4 MHz 0 dBm 352 KB 32 KB BT5.2 1.2 Description RF-BM-BG22A1 is an RF module based on EFR32BG22C112F352GM32-C, one of Gecko family of SoCs from Silicon Labs,with a 32-bit ARM ® Cortex ® -M33core with 38.4 MHz maximum operating frequency. It integrates a 38.4 MHz crystal,a matching, an antenna matching, a low-pass filterand a meander line inverted-F PCB antenna. It supports Bluetooth 5.2 low energy and Bluetooth 5.0 low energy and can be preprogrammed with a serial interface communication protocol for simple programming. It also has a range of analog and digital interfaces such as PRS, ADC, UART, SPI, I 2 C, PWM, ISO 7816, IrDA, I 2 S, EUART and PDM.It features low power consumption, compact size, robust connection distance, and rigid reliability. The module reaches up to 0 dBm TX power. 1.27-mm pitch stamp stick package for easy assembling and cost-effective PCB design.RF-BM-BG22A1 is pin-2-pin compatible with BG22A2 and BG22A3. 1.3Key Features • Protocol - Bluetooth 5.1Low Energy - Bluetooth 5.0 Low Energy - Bluetooth Mesh Node • Supported Modulation Format - 2 (G)FSK with fully configurable shaping • High Performance 32-bit 76.8 MHz ARM Cortex®-M33 with DSP instruction and floating-point unit for efficient signal processing • Memory - Flash:352KB - RAM: 32 KB • TX power: -2 8 dBm ~ 6 dBm • Wide Peripherals - 12-bit 1 Mbps SAR Analog to Digital Converter (ADC) - Up to 18GPIOs with output state retention and asynchronous interrupts - 8 Channel DMA Controller - 12 Channel Peripheral Reflex System (PRS) - 4 × 16-bit Timer / Counter with 3 Compare / Capture / PWM channels - 1 × 32-bit Timer / Counter with 3 Compare / Capture / PWM channels - 32-bit Real Time Counter - 24-bit Low Energy Timer for waveform generation - 1 × Watchdog Timer - 2 × Universal Synchronous / Asynchronous Shenzhen RF-star Technology Co., Ltd. Page 1 of 19 RF-BM-BG22A1 www.szrfstar.comV1.0 - Sep., 2020 Receiver / Transmitter (UART / SPI / SmartCard (ISO 7816) / IrDA / I 2 S) - 1 × Enhanced Universal Asynchronous Receiver/Transmitter(EUART) - 2 × I 2 C interface with SMBus support - Digital microphone interface (PDM) - Precision Low-Frequency RC Oscillator enabling single-crystaloperation - RFSENSE with selective OOK mode - Die temperature sensor with +/-2 degree C accuracy acrosstemperature range • Wide Operation Range - 1.71 V to 3.8 V single power supply - Operating temperature: -40 °C to +85 °C • Security Features - Secure Boot with Root of Trust and Secure Loader (RTSL) - Hardware Cryptographic Acceleration for AES128/256, SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA, and ECDH - True Random Number Generator (TRNG) compliant with NIST SP800-90 and AIS-31 - ARM ® TrustZone ® - Secure Debug with lock/unlock 1.4 Applications • Asset tags and beacons • Consumer electronics remote controls • Portable medical • Bluetooth Mesh Low energy nodes • Sports, fitness and wellness devices • Connected home • Building automation and security 1.5 Functional Block Diagram Confident ial Figure 1. Functional Block Diagram of RF-BM-BG22A1 1.6 Part Number Conventions The part numbers are of the form of RF-BM-BG22A1 where the fields are defined as follows: Figure 2. Part Number Conventions of RF-BM-BG22A1 RF BM BG22 Company Name RF-star Wireless Type Bluetooth Module Chipset Silicon Labs EFR32BG22 Series - - A1 Module Version The first version Shenzhen RF-star Technology Co., Ltd. Page 2 of 19 RF-BM-BG22A1 www.szrfstar.comV1.0 - Sep., 2020 FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Integral antenna with antenna gain 0dBi 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. Note: 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 installation. 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 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 turning the equipment off and on, the user is encouraged to try to correct the interference by one or more 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. FCC Radiation Exposure Statement This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-loc ated or operating in conjunction with any other antenna or transmitter. If the FCC identification number is not visible when the module is installed inside another devic…

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Compliance list INTEGRATION INSTRUCTIONS for 996369 D03 OEM the and 996369 D03 OEM by Sections 2.2 through 2.10. Requirement Yes N/A Comment 2.2 List of applicable FCC rules List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional-radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host manufacturers that further testing is required.3 YES Refer to instruction FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 2.3 Summarize the specific operational use conditions Describe use conditions that are applicable to the modular transmitter, including for example any limits on antennas, etc. For example, if point-to-point antennas are used that require reduction in power or compensation for cable loss, then this information must be in the instructions. If the use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturer’s instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band and minimum gain, specifically for master devices in 5 GHz DFS bands. YES Refer to instruction Integral antenna with antenna gain 0dBi 2.4 Limited module procedures If a modular transmitter is approved as a “limited module,” then the module manufacturer is responsible for approving the host environment that the limited module is used with. The manufacturer of a limited module must describe, both in the filing and in the installation instructions, the alternative means that the limited module manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting conditions. A limited module manufacturer has the flexibility to define its alternative method to address the conditions that limit the initial approval, such as: shielding, minimum N/A Not applicable signaling amplitude, buffered modulation/data inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured. For additional hosts other than the specific host originally granted with a limited module, a Class II permissive change is required on the module grant to register the additional host as a specific host also approved with the module. 2.5 Trace antenna designs For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ – Modules for Micro-Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements. 4 a) Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna); b) Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered); c) The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout; d) Appropriate parts by manufacturer and specifications; e) Test procedures for design verification; and N/A Not applicable f) Production test procedures for ensuring compliance. The module grantee shall provide a notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. 2.6 RF exposure considerations It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person’s body); and (2) additional text needed for the host product manufacturer to provide to end users in their end-product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application). YES Refer to instruction This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2.7 Antennas A list of antennas included in the application for certification must be provided in the instructions. For modular transmitters approved as limited modules, all applicable professional installer instructions must be included as part of the information to the host product manufacturer. The antenna list shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that for example an “omni-directional antenna” is not considered to be a spec…

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Single Modular approval Declaration letter We , Shen Zhen RF-STAR Technology Co.,Ltd apply Single modular approval for Product Name:Bluetooth MODULE Model: RF-BM-BG22A1 FCC ID: 2ABN2-BG22A1 According to 996369 D01 Module Equip Auth Guide v01r04 and 15.212 requirement: 1) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly; Answer ：Ye s ; Shielding for both side . 2) The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal; Answer ：Ye s ；All inputs to the modules are buffered through logic or microprocessor inputs. 3)The modular transmitter must have its own power supply regulation. Answer ：Ye s ；A low drop out regulator is used for modular power supply regulation. 4) The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b); Answer ：Ye s ；Device is equipped with PCB antenna. (5) The module must demonstrate compliance in a stand-alone configuration; Answer ：Yes；distance between modular and all AEs are bigger than 10cm ，refer to setup photo. (6) The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labeling requirements); Answer ：Yes ；The modular has a permanent fixed label, and below statement was listed in the User Manual; The host device must be labeled to display the FCC ID of the module “Contains FCC ID: 2ABN2-BG22A1” (7) The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee; Answer ：Yes ；The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual . (8) The module must comply with RF exposure requirements. Answer ：Yes ；Transmitter meets RF exposure requirement KDB 447498 . Refer to RF exposure requirement Reports and Refer to modular installation manual. Please contact me if you have any further questions. Thanks for your attention. Best Regards, <Signature> Name ：Aroo Woo Applicant Company：ShenZhen RF-STAR Technology CO., LTD

DATE：2021-1-04 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ABN2- BG22A1 Product Name: Bluetooth MODULE Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) •Schemati cs •Block diagram •Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Aroowoo Title：/ Applicant Company：ShenZhen RF-STAR Technology CO., LTD

ModelNo.:RF-BM-BG22A1

Page 1 of6 BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Add:No. 448, Bulong Road, Bantian Street, Longgang District, Shenzhen, China Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TEST REPORT Product Name : Bluetooth MODULE Brand Mark : RF-STAR Model No. : RF-BM-BG22A1 FCC ID : 2ABN2- BG22A1 Report Number : BLA-EMC-202012-A3402 Date of Sample Receipt : 2020/12/12 Date of Test : 2020/12/12 to 2020/12/30 Date of Issue : 2020/12/30 Test Standard : 47 CFR Part 1.1307, Part 2.1093, KDB 447498 Test Result : Pass Prepared for: Shenzhen Rfstar Technology Co.,Ltd 2F, BLDG.8,Zone A, BaoAn Internet Industry Base,BaoYuan Road, XiXiang, BaoAn DIST, ShenZhen China Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by: Review by: Approved by: Date: 2020/12/30 Report No.: BLA-EMC-202012-A3402 Page 2 of6 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No. Date Description 00 2020/12/30 Original Report No.: BLA-EMC-202012-A3402 Page 3 of6 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY ........................................................................................................................................4 2 LIMITS .........................................................................................................................................................5 2.1 EUT RF EXPOSURE EVALUATION .................................................................................................................................... 6 Report No.: BLA-EMC-202012-A3402 Page 4 of6 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 1 TEST SUMMARY Test item Test Requirement Test Method Class/Severity Result RF Exposure 47 CFR Part 1.1307, Part 2.1093, KDB 447498 CFR 47 Part 2.1093 CFR 47 Part 2.1093 Pass Report No.: BLA-EMC-202012-A3402 Page 5 of6 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2 LIMITS The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 17 The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Report No.: BLA-EMC-202012-A3402 Page 6 of6 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2.1 EUT RF EXPOSURE EVALUATION Operational Mode: BLE（GFSK worst case） Channel Maximum Peak Conducted Output Power (dBm) Tune up tolerance (dB) Maximum tune-up Power(dB m) Maximum tune-up Power(mW ) Calculated value Exclusion threshold 2402MHz 0.84 1 1.84 1.53 0.47 3 2442MHz 0.58 1 1.58 1.44 0.45 3 2480MHz 0.25 1 1.25 1.33 0.42 3 Conclusion: the calculated value ≤3.0, SAR is exempted. ----END OF REPORT---- The test report is effective only with both signature and specialized stamp, The result(s) shown in this report refer only to the sample(s) tested. Without written approval of BlueAsia, this report can’t be reproduced except in full.

Report No.: BLA-EMC-202012-A3401 Page 45 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10 APPENDIX 10.1APPENDIX:DTS BANDWIDTH Test Result TestModeAntennaChannelDTS BW [MHz]FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_BT4.0Ant1 24020.6562401.5682402.224>=0.5PASS 24420.6522441.5682442.220>=0.5PASS 24800.6562479.5642480.220>=0.5PASS Report No.: BLA-EMC-202012-A3401 Page 46 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_2402 BLE_BT4.0_Ant1_2442 BLE_BT4.0_Ant1_2480 Report No.: BLA-EMC-202012-A3401 Page 47 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10.2APPENDIX:OCCUPIED CHANNEL BANDWIDTH Test Result TestModeAntennaChannelOCB [MHz]FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_BT4.0Ant1 24021.01472401.4002402.415---PASS 24421.01642441.3982442.415---PASS 24801.01732479.3962480.414---PASS Report No.: BLA-EMC-202012-A3401 Page 48 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_2402 BLE_BT4.0_Ant1_2442 BLE_BT4.0_Ant1_2480 Report No.: BLA-EMC-202012-A3401 Page 49 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202012-A3401 Page 50 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10.3APPENDIX:MAXIMUM CONDUCTED OUTPUT POWER Test Result TestModeAntennaChannelResult[dBm]Limit[dBm]Verdict BLE_BT4.0Ant1 24020.84<=30PASS 24420.58<=30PASS 24800.25<=30PASS Report No.: BLA-EMC-202012-A3401 Page 51 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_2402 BLE_BT4.0_Ant1_2442 BLE_BT4.0_Ant1_2480 Report No.: BLA-EMC-202012-A3401 Page 52 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10.4APPENDIX:MAXIMUM POWER SPECTRAL DENSITY Test Result TestModeAntennaChannelResult[dBm/3-100kHz]Limit[dBm/3kHz]Verdict BLE_BT4.0Ant1 2402-9.36<=8PASS 2442-9.64<=8PASS 2480-9.9<=8PASS Report No.: BLA-EMC-202012-A3401 Page 53 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_2402 BLE_BT4.0_Ant1_2442 BLE_BT4.0_Ant1_2480 Report No.: BLA-EMC-202012-A3401 Page 54 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10.5APPENDIX:BAND EDGE MEASUREMENTS Test Result TestModeAntennaChNameChannelRefLevel[dBm]Result[dBm]Limit[dBm]Verdict BLE_BT4.0Ant1 Low24020.29-53.61<=-19.71PASS High2480-0.27-54.3<=-20.27PASS Report No.: BLA-EMC-202012-A3401 Page 55 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_Low_2402 BLE_BT4.0_Ant1_High_2480 Report No.: BLA-EMC-202012-A3401 Page 56 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com 10.6APPENDIX:CONDUCTED SPURIOUSEMISSION Test Result TestModeAntennaChannel FreqRange [MHz] RefLevel [dBm] Result[dBm]Limit[dBm]Verdict BLE_BT4.0Ant1 2402 Reference-0.02-0.02---PASS 30~100030~1000-64.92<=-30.018PASS 1000~265001000~26500-43.039<=-30.018PASS 2442 Reference-0.34-0.34---PASS 30~100030~1000-64.809<=-30.342PASS 1000~265001000~26500-45.153<=-30.342PASS 2480 Reference-0.22-0.22---PASS 30~100030~1000-64.445<=-30.217PASS 1000~265001000~26500-45.083<=-30.217PASS Report No.: BLA-EMC-202012-A3401 Page 57 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Test Graphs BLE_BT4.0_Ant1_2402_0~Reference BLE_BT4.0_Ant1_2402_30~1000 BLE_BT4.0_Ant1_2402_1000~26500 Report No.: BLA-EMC-202012-A3401 Page 58 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202012-A3401 Page 59 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com BLE_BT4.0_Ant1_2442_0~Reference BLE_BT4.0_Ant1_2442_30~1000 BLE_BT4.0_Ant1_2442_1000~26500 Report No.: BLA-EMC-202012-A3401 Page 60 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com BLE_BT4.0_Ant1_2480_0~Reference BLE_BT4.0_Ant1_2480_30~1000 BLE_BT4.0_Ant1_2480_1000~26500 Report No.: BLA-EMC-202012-A3401 Page 61 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com APPENDIX A: PHOTOGRAPHS OF TEST SETUP Radiated Spurious Emissions Report No.: BLA-EMC-202012-A3401 Page 62 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com Conducted Emissions at AC Power Line (150kHz-30MHz) Report No.: BLA-EMC-202012-A3401 Page 63 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com APPENDIX B: PHOTOGRAPHS OF EUT Report No.: BLA-EMC-202012-A3401 Page 64 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com ----END OF REPORT---- The test report is effective only with both signature and specialized stamp, The result(s) shown in this report refer only to the sample(s) tested. Without written approval of BlueAsia, this report can’t be reproduced except in full.

Page 1 of 64 BlueAsia ofTechnical Services(Shenzhen) Co.,Ltd. Add:No. 448, Bulong Road, Bantian Street, Longgang District, Shenzhen, China Tel: +86-755-23059481 Email:[email protected] www.cblueasia.com TEST REPORT Product Name: Bluetooth MODULE Brand Mark: RF-STAR Model No.: RF-BM-BG22A1 FCC ID: 2ABN2- BG22A1 Report Number: BLA-EMC-202012-A3401 Date of Sample Receipt : 2020/12/12 Date of Test: 2020/12/12 to 2020/12/30 Date of Issue: 2020/12/30 Test Standard: 47 CFR Part 15, Subpart C 15.247 Test Result:Pass Prepared for: Shenzhen Rfstar Technology Co.,Ltd 2F, BLDG.8,Zone A, BaoAn Internet Industry Base,BaoYuan Road, XiXiang, BaoAn DIST, ShenZhen China Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District,Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by:Review by: Approved by:Date:2020/12/30 Report No.: BLA-EMC-202012-A3401 Page 2 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No.DateDescription 002020/12/30Original Report No.: BLA-EMC-202012-A3401 Page 3 of 64 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY.......................................................................................................................................................6 2 GENERAL INFORMATION......................................................................................................................................7 3 GENERAL DESCRIPTION OF E.U.T.....................................................................................................................7 4 TEST ENVIRONMENT..............................................................................................................................................8 5 TEST MODE...............................................................................................................................................................8 6 MEASUREMENT UNCERTAINTY..........................................................................................................................8 7 DESCRIPTION OF SUPPORT UNIT......................................................................................................................9 8 LABORATORY LOCATION.....................................................................................................................................9 9 TEST INSTRUMENTS LIST...................................................................................................................................10 1 CONDUCTED EMISSIONS AT AC POWER LINE (150KHZ-30MHZ)...........................................................13 1.1 LIMITS ..................................................................................................................................................................... 13 1.2 BLOCKDIAGRAMOFTESTSETUP ........................................................................................................................... 13 1.3 PROCEDURE ............................................................................................................................................................ 13 1.4 TESTD ATA ................................................................................................................................................................ 15 2 CONDUCTED BAND EDGES MEASUREMENT...............................................................................................18 2.1 LIMITS ..................................................................................................................................................................... 18 2.2 BLOCKDIAGRAMOFTESTSETUP ........................................................................................................................... 18 2.3 TESTD ATA ................................................................................................................................................................ 19 3 RADIATED SPURIOUS EMISSIONS...................................................................................................................20 3.1 LIMITS ..................................................................................................................................................................... 20 3.2 BLOCKDIAGRAMOFTESTSETUP ........................................................................................................................... 21 3.3 PROCEDURE ............................................................................................................................................................ 21 3.4 TESTD ATA ............................................................................................................................................................…

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