2AKS8-DX-BT24-SBluetooth Module

DX-BT24-S MODULESPECIFICATION Version：2.2 Date：2022-01-06 DX-BT24-SMODULESPECIFICATION -2- Updaterecord VersionDateIllustrateAuthor V2.12018/10/1initialversionDL V2.22022/01/06newversionDL ContactUs ShenzhenDX-SMARTTechnologyCo.,Ltd. Email：[email protected] Tel：0755-29978125 Web：www.szdx-smart.com Add：Room601,BlockA1,HuafengZhigu,HangkongRoad,BaoanDistrict,Shenzhen DX-BT24-SMODULESPECIFICATION ShenzhenDX-SMARTTechnologyCo.,Ltd.www.szdx-smart.com -3- Contents 1. Introduction......................................................................................................................................................-5- 1.1.Overview..................................................................................................................................................-5- 1.2.KeyFeatures............................................................................................................................................-5- 1.3.Application..............................................................................................................................................-6- 1.4.BlockDiagram........................................................................................................................................-6- 1.5.BasicParameters...................................................................................................................................-7- 2. ApplicationInterface......................................................................................................................................-7- 2.1.ModulePinDefinition..........................................................................................................................-7- 2.2.PinDefinitionDescription...................................................................................................................-8- 2.3.OperatingMode....................................................................................................................................-9- 2.4.Energy-savingMode..........................................................................................................................-10- 2.4.1.LowPowerMode.....................................................................................................................-10- 2.4.2.HibernationMode...................................................................................................................-10- 2.5.PowerDesign.......................................................................................................................................-11- 2.5.1.PowerInterface........................................................................................................................-11- 2.5.2.PowerSupplyStabilityRequirements...............................................................................-11- 2.5.3.PowerDownRequirements..................................................................................................-12- 2.5.4.RSTResetPinDescription.....................................................................................................-12- 2.5.5.KEYPinDefinition....................................................................................................................-14- 2.6.HardwarePhysicalInterface.............................................................................................................-15- 2.6.1.UARTInterface..........................................................................................................................-15- 2.6.2.UniversalDigitalIOPort........................................................................................................-16- 2.6.3.I2CInterface..............................................................................................................................-16- 2.6.4.Analog-to-digitalConverter（ADC）................................................................................-16- 2.7.ReferenceConnectionCircuit..........................................................................................................-17- 3.ElectricalCharacteristics&Reliability.....................................................................................................-18- 3.1.MaximumRating.................................................................................................................................-18- 3.2.WorkingAndStorageTemperature..............................................................................................-19- 3.3.PowerConsumption...........................................................................................................................-19- 3.4.RFCharacteristics................................................................................................................................-20- 3.5.StaticProtection..................................................................................................................................-20- 4.MechanicalSizeAndLayoutRecommendations.................................................................................-20- 4.1.ModuleMechanicalSize...................................................................................................................-21- 4.2.RecommendEncapsulation..............................................................................................................-22- 4.3.ModuleTopView&BottomView.................................................................................................-22- 4.4.HardwareDesignLayoutRecommendations.............................................................................-23- 5. PatchRequirements......................................................................................................................................-24- 5.1.StorageConditions.............................................................................................................................-24- 5.2.ModuleB…

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SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Agent Authorization Company: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address: Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Product Name: Bluetooth Module Model Number(s): DX-BT24-S Product Description: Bluetooth Module We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022.08.05 Name: zhou guanzhi Title: Sales Manager Company: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD

SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Subject; Modular Transmitter Application Company name: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD FCC ID: 2AKS8-DX-BT24-S Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID 2AKS8-DX-BT24-S has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) 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. Yes, with shielded 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. Yes , All inputs to the modules are buffered through logic or microprocessor inputs. The module must contain power supply regulation on the module. Yes, A low drop out regulator is used for modular power supply regulation. 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 §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). Yes, Device is equipped with PCB antenna. The module must demonstrate compliance in a stand-alone configuration. Yes, distance between modular and all AEs are longer than 20cm, refer to setup photo. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). 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 FCCID of the module Contains FCC ID: 2AKS8-DX-BT24-S The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. 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 SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD FCC Modular Approval Request Rev 3.0 The module must comply with RF exposure requirements Yes , Transmitter meets MPE calculation of 47 CFR 1.1307 . Refer to MPE Reports and Refer to modular installation manual Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules please refer to P29-32 2.3 Summarize the specific operational use conditions please refer to P29-32 2.4 Limited module procedures N/A 2.5 Trace antenna designs please refer to P27 2.6 RF exposure considerations please refer to P29-32 2.7 Antennas please refer to P22 2.8 Label and compliance information please refer to P21 2.9 Information on test modes and additional testing requirements please refer to P29-32 2.10 Additional testing, Part 15 Subpart B disclaimer please refer to P29-32 Name: zhou guanzhi Date: 2022.08.05 Title: Sales Manager Signature of applicant:

SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022.08.05 Subject; Request for Confidentiality FCC ID: 2AKS8-DX-BT24-S To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: zhou guanzhi Title: Sales Manager

Page 1 of 1 Report No.: STS2207130 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: DX-BT24-S Photo 1 Photo 2

Label Model name: DX-BT24-S FCC ID: 2AKS8-DX-BT24-S W:4mm W:8mm Note:The label is silk-screen on the sample Note: The label is silk-screen on the sample Note: The label is silk-screen on the sample L:30mm L:30mm

Page 1 of 1 Report No.: STS2207130 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: DX-BT24-S Photo 1 BT ANT

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No: STS2207130H02 Issued for SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Product Name: Bluetooth Module Brand Name: N/A Model Name: DX-BT24-S Series Model: N/A FCC ID: 2AKS8-DX-BT24-S Test Standard: FCC 47CFR §2.1093 S T L A B S Page 2 of 9 Report No.: STS2207130H02 Test Report Certification Applicant’s Name ................. : SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ................................. : Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Manufacturer's Name .......... : SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ................................. : Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Product Description Product Name ........................ : Bluetooth Module Brand Name ......................... : N/A Model Name .......................... : ... : DX-BT24-S Series Model .......................... : N/A Standards ............................. : FCC 47CFR §2.1093 447498 D04 Interim General RF Exposure Guidance v01 This report shall not be reproduced except in full, without the written approval of STS, this document only be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date of receipt of test item ...................... : 21 July 2022 Date (s) of performance of tests ............. : 21 July 2022 ~ 28 July 2022 Date of Issue ........................................... : 28 July 2022 Test Result ............................................... : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Bovey Yang) Page 3 of 9 Report No.: STS2207130H02 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 9 Page 4 of 9 Report No.: STS2207130H02 Revision History Rev. Issue Date Report No. Effect Page Contents 00 28 July 2022 STS2207130H02 ALL Initial Issue Page 5 of 9 Report No.: STS2207130H02 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Bluetooth Module Brand Name N/A Model Name DX-BT24-S Series Model N/A Model Difference N/A Product Description The EUT is Bluetooth Module. Operation Frequency: 2402~2480 MHz Modulation Type: GFSK Antenna gain: 0dBi Antenna Designation: PCB Rating Input: DC 3.3V Hardware version number DX-BT24-S Software version number 1.0.6 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 9 Report No.: STS2207130H02 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.: STS2207130H02 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 8 of 9 Report No.: STS2207130H02 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW…

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Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, all test data presented in this report is only applicable to presented test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No.:STS2207130W02 Issued for SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Product Name: Bluetooth Module Brand Name: N/A Model Name: DX-BT24-S Series Model: N/A FCC ID: 2AKS8-DX-BT24-S Test Standard: FCC Part 15.247 S T L A B S Page 2 of 59 Report No.: STS2207130W02 TEST RESULT CERTIFICATION Applicant’s Name ..................: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ..................................: Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Manufacturer's Name ...........: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ..................................: Room 601, Block A1, HuafengZhigu, Hangkong Road, Baoan District, Shenzhen, China Product Description Product Name .........................: Bluetooth Module Brand Name ..........................: N/A Model Name ...........................: DX-BT24-S Series Model ...........................: N/A Test Standards ......................: FCC Part15.247 Test Procedure .......................: ANSI C63.10-2013 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document may be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date of receipt of test item ...................... : 21 July 2022 Date (s) of performance of tests ............. : 21 July 2022 ~ 28 July 2022 Date of Issue ........................................... : 28 July 2022 Test Result ............................................... : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Bovey Yang) Page 3 of 59 Report No.: STS2207130W02 Table of Contents 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 12 2.6 EQUIPMENTS LIST 13 3. EMC EMISSION TEST 15 3.1 CONDUCTED EMISSION MEASUREMENT 15 3.2 TEST PROCEDURE 16 3.3 TEST SETUP 16 3.4 EUT OPERATING CONDITIONS 16 3.5 TEST RESULTS 17 4. RADIATED EMISSION MEASUREMENT 19 4.1 RADIATED EMISSION LIMITS 19 4.2 TEST PROCEDURE 21 4.3 TEST SETUP 22 4.4 EUT OPERATING CONDITIONS 22 4.5 FIELD STRENGTH CALCULATION 23 4.6 TEST RESULTS 24 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 31 5.1 LIMIT 31 5.2 TEST PROCEDURE 31 5.3 TEST SETUP 31 5.4 EUT OPERATION CONDITIONS 31 5.5 TEST RESULTS 31 6. POWER SPECTRAL DENSITY TEST 32 6.1 LIMIT 32 6.2 TEST PROCEDURE 32 6.3 TEST SETUP 32 Page 4 of 59 Report No.: STS2207130W02 Table of Contents 6.4 EUT OPERATION CONDITIONS 32 6.5 TEST RESULTS 32 7. BANDWIDTH TEST 33 7.1 LIMIT 33 7.2 TEST PROCEDURE 33 7.3 TEST SETUP 33 7.4 EUT OPERATION CONDITIONS 33 7.5 TEST RESULTS 33 8. PEAK OUTPUT POWER TEST 34 8.1 LIMIT 34 8.2 TEST PROCEDURE 34 8.3 TEST SETUP 35 8.4 EUT OPERATION CONDITIONS 35 8.5 TEST RESULTS 35 9. ANTENNA REQUIREMENT 36 9.1 STANDARD REQUIREMENT 36 9.2 EUT ANTENNA 36 APPENDIX 1-TEST DATA 37 1. DUTY CYCLE 37 2. MAXIMUM AVERAGE CONDUCTED OUTPUT POWER 40 3. MAXIMUM PEAK CONDUCTED OUTPUT POWER 43 4. -6DB BANDWIDTH 46 5. MAXIMUM POWER SPECTRAL DENSITY LEVEL 49 6. BAND EDGE 52 7. CONDUCTED RF SPURIOUS EMISSION 55 APPENDIX 2- EUT TEST PHOTO 59 Page 5 of 59 Report No.: STS2207130W02 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 28 July 2022 STS2207130W02 ALL Initial Issue Page 6 of 59 Report No.: STS2207130W02 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Page 7 of 59 Report No.: STS2207130W02 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.87dB 2 Unwanted Emissions, conducted ±2.895dB 3 All emissions, radiated 9K-30MHz ±3.80dB 4 All emissions, radiated 30M-1GHz ±4.09dB 5 All emissions, radiated 1G-6GHz ±4.92dB 6 All emissions, radiated>6G ±5.49dB 7 Conducted Emission (9KHz-30MHz) ±2.73dB Page 8 of 59 Report No.: STS2207130W02 2…

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Page 1 of 2 FCC ID: 2AKS8-DX-BT24-S DTS Setup photo Model name: DX-BT24-S DTS radiation L DTS radiation H Page 2 of 2 FCC ID: 2AKS8-DX-BT24-S DTS conduction