2AKS8DX-BT19-SBluetooth module

User Manual Product Name: Bluetooth module Model Name: DX-BT19-S Manufacture: SHEN ZHEN DX-SMART TECHNOLOGY CO., LTD DX-BT19-S 蓝牙技术手册 电话：0755- 29978125 http://www.szdx-smart.com/ 16 / 30 Table Of Contents 1、Overview .................................................................................................................17 2、Module Default Parameters .................................................................................17 3、Application Area....................................................................................................18 4、Power consumption parameters...........................................................................18 5、Radio frequency characteristics...........................................................................18 6、Transparent Transmission Parameters ..............................................................18 7、Module Pin Description And Minimum Circuit Diagram..................................19 8、Pin Function Description ......................................................................................19 9、Detailed Description Of Function pins.................................................................20 10、Dimensions ...........................................................................................................21 11、LAYOUT Precautions .....................................................................................21 12、AT COMMAND...................................................................................................22 12.1 Test Command .........................................................................................................23 12.2 Get The Software Version....................................................................................23 12.3 Query Module Bluetooth MAC..............................................................................23 12.4 Set/Query Device Name...........................................................................................23 12.5 Set/Query - Serial Port Baud Rate............................................................................24 12.6 Set/Query - Serial Port Stop Bit................................................................................25 12.7 Set / Query - Serial Parity Bit................................................................................25 12.8 Set/Query-Notify the host computer connection status (only slave mode is valid) 25 12.9 Set/Query - Notification connection with address code ( only slave mode is valid).25 12.10 Settings\Query - SERVICE UUID .........................................................................26 12.11 Settings\Query - NOTIFY UUID\ WRITE UUID ................................................26 12.12 Settings\Query - WRITE UUID ............................................................................26 12.13 Settings\Query - Wait for the channel to be established after connecting(only slave module is valid)........................................................................................................27 12.14 Settings\Query - Low Power Mode(only slave module is valid) ..........................27 12.15 Settings\Query - Broadcast time interval(only slave module is valid)..................27 12.16Settings\Query - Module transmit power(only slave module is valid)..................28 12.17 Software restart..............................................................................28 12.18 Restore default settings....................................................................28 12.19 Query - Master Mode(only master module is valid).............................................. 28 12.20 Search for Bluetooth devices (only master module is valid) ................................28 12.21 Print search to device list(only master module is valid) .........................................29 12.22 Settings\Query—Automatically search for Bluetooth devices (master module is valid) ...............................................................................................................................29 12.23 Connect a Bluetooth device (only master module is valid) .............................29 12.24 Settings\Query—Automatically connect to Bluetooth device.............. ..........29 12.25 Connect to the remote specified address Bluetooth (only master mode is valid). 30 12.26 Bind the specified address to Bluetooth (only master module is valid) ........... 30 12.27 Clear connection memory(only master module is valid)..............................30 13、Contact Us.............................................................................................................30 DX-BT19-S 蓝牙技术手册 电话：0755- 29978125 http://www.szdx-smart.com/ 17 / 30 1．Overview 2． Module default parameters ： Bluetooth Protocol Bluetooth Specification V4.0 BLE Working Frequency 2.4GHz ISM band Communication Interface UART Power Supply 3.3V Communication distance 30-40M (Open and unobstructed environment) Physical Dimension 18.5(L)mm x 13.5(W)mm x 2(H) mm Bluetooth Authentication FCC CE ROHS REACH Bluetooth Name BT19 Serial Port Parameters 9600、8 data bits、1 stop bit、No check、No flow control Service UUID FFE0 Notify\Write UUID FFE1 Write UUID FFE2 Storage temperature MIN:-55°C - MAX:+125°C Work temperature MIN:-20°C - MAX:+70°C Customized requirements If you have other special function requirements, you can contact us to customize the module. DX-BT19 4.0 Bluetooth module is built by Shenzhen DX-SMART Technology Co., Ltd. for intelligent wireless data transmission. It adopts CC2541 chip of American TI Company, configures 256Kb space, and follows V4.0 BLE Bluetooth specification. Support AT command, users can change the serial port baud rate, device name, pairing password and other parameters as needed, flexible use. This module supports UART interface and supports Bluetooth serial port transparent transmission. It has the advantages of low cost, small size, low power consumption, high sen…

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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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2021-01-24 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen STS Test Services Co., Ltd., 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road, Fuyong Street, Bao’an District, Shenzhen, Guangdong,China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD 601, Room 601, Block A1, Huafeng Zhigu, Hangkong Road, Baoan District, Shenzhen, China (Applicant Name and address) Sincerely, Name: zhou guanzhi Title: Sales Manager Company: SHEN ZHEN DX-SMART TECHNOLOGY CO., LTD

2021-01-24 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID:__ 2AKS8DX-BT19-S ___ Product Name:___ Bluetooth module ___ Model name: DX-BT19-S 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 ...) • Schematics • 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. Sincerely, Name: zhou guanzhi Title: Sales Manager Company: SHEN ZHEN DX-SMART TECHNOLOGY CO., LTD

Single Modular approval Declaration letter We ,apply Single modular approval for Product Name: Bluetooth module Model: DX-BT19-S FCC ID: 2AKS8DX-BT19-S 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 beon the module assembly; Answer ：Yes，with shielded 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 ：Yes ；All inputs to the modules are buffered through logic or microprocessor inputs. 3)The modular transmitter must have its own power supply regulation. Answer ：Yes ；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 Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b); Answer ：Yes ；Device is equipped with Integral antenna. (5)The module must demonstrate compliance in a stand-alone configuration; Answer ：Yes，distance between modular and all AEs are longer than 20cm ，refer to setup photo. (6)The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling 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 FCCID of the module Contains FCC ID: 2AKS8DX-BT19-S (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 KDB447498 . Refer to RF exposure Reports and Refer to modular installation manual Date: 2021-01-24 Signature Name: zhou guanzhi Title: Sales Manager Company: SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address: Room 601, Block A1, Huafeng Zhigu, Hangkong Road, Baoan District, Shenzhen, China

Page 1 of 3 Report No.: STS2101022 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: DX-BT19-S Photo 1 Photo 2 Page 2 of 3 Report No.: STS2101022 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2101022 Photo 5 Photo 6

Label Bluetooth module Model name DX-BT19-S FCC ID: 2AKS8DX-BT19-S W:5mm W:10mm 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.: STS2101022 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: DX-BT19-S Photo 1 Photo 2 -,--- �

FCC ID : 2AKS8DX-BT19-S RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 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. FCC ID : 2AKS8DX-BT19-S Maximum measured transmitter power. BLE 4.0 The Worst Case Mode 2402-2480MHz Detector PEAK GFSK -2±1dBm Remark: The worst case gain of the antenna is 0dBi. 0dBi logarithmic terms convert to numeric result is nearly 1. Mode Frequen cy (GHz) Maxinum Peak Conducted Output Power (dBm) Tune up Power (dBm) Tune up Power (mW) Result Limit GFSK 2.402 -1.11 -1 0.794 0.246 3 Threshold at which no SAR required is 0.246≤ 3.0 for 1-g SAR, Separation distance is 5mm.

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.:STS2101022W01 Issued for SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Room 601, Block A1, Huafeng Zhigu, Hangkong Road, Baoan District, Shenzhen, China Product Name: Bluetooth module Brand Name: N/A Model Name: DX-BT19-S Series Model: N/A FCC ID: 2AKS8DX-BT19-S Test Standard: FCC Part 15.247 S T L A B S Page 2 of 46 Report No.: STS2101022W01 TEST RESULT CERTIFICATION Applicant’s Name ................. : SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ................................. : Room 601, Block A1, Huafeng Zhigu, Hangkong Road, Baoan District, Shenzhen, China Manufacturer's Name .......... : SHEN ZHEN DX-SMART TECHNOLOGY CO.,LTD Address ................................. : Room 601, Block A1, Huafeng Zhigu, Hangkong Road, Baoan District, Shenzhen, China Product Description Product Name ....................... : Bluetooth module Brand Name ........................ : N/A Model Name .......................... : DX-BT19-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 ..................... : 06 Jan. 2021 Date (s) of performance of tests ............. : 06 Jan. 2021 ~ 15 Jan. 2021 Date of Issue .......................................... : 15 Jan. 2021 Test Result.............................................. : Pass Testing Engineer : (Chris Chen) Technical Manager : (Sean she) Authorized Signatory : (Vita Li) Page 3 of 46 Report No.: STS2101022W01 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 22 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 32 6. POWER SPECTRAL DENSITY TEST 36 6.1 LIMIT 36 6.2 TEST PROCEDURE 36 6.3 TEST SETUP 36 Page 4 of 46 Report No.: STS2101022W01 Table of Contents 6.4 EUT OPERATION CONDITIONS 36 6.5 TEST RESULTS 37 7. BANDWIDTH TEST 39 7.1 LIMIT 39 7.2 TEST PROCEDURE 39 7.3 TEST SETUP 39 7.4 EUT OPERATION CONDITIONS 39 7.5 TEST RESULTS 40 8. PEAK OUTPUT POWER TEST 42 8.1 LIMIT 42 8.2 TEST PROCEDURE 42 8.3 TEST SETUP 43 8.4 EUT OPERATION CONDITIONS 43 8.5 TEST RESULTS 44 9. ANTENNA REQUIREMENT 45 9.1 STANDARD REQUIREMENT 45 9.2 EUT ANTENNA 45 10. EUT TEST PHOTO 46 Page 5 of 46 Report No.: STS2101022W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 15 Jan. 2021 STS2101022W01 ALL Initial Issue Page 6 of 46 Report No.: STS2101022W01 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 -- 15.247 (c) 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 46 Report No.: STS2101022W01 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 ±0.68dB 2 Unwanted Emissions, conducted ±2.988dB 3 All emissions, radiated 30-1GHz ±5.6dB 4 All emissions, radiated 1G-6GHz ±5.5dB 5 All emissions, radiated>6G ±5.8dB 6 Conducted Emission (9KHz-150KHz) ±3.37dB 7 Conducted Emission (150KHz-30MHz) ±3.83dB Page 8 of 46 Report No.: STS2101022W01 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name Bluetooth module Trade Name N/A Model Name DX-BT19-S Series Model N/A Model Difference N/A Product Description The EUT is a Bluetooth module Operation Frequency: 2402~2480 MHz Modulation Type…

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Page 1 of 2 FCC ID: 2AKS8DX-BT19-S DTS Setup photo Model name: DX-BT19-S DTS conduction DTS radiation L Page 2 of 2 FCC ID: 2AKS8DX-BT19-S DTS radiation H