FCC ID: 2ATLHOM841 LoRaWAN Module

OM Module User Manual 1. Product Introduction 1.1 Product Description OM841 is a RF chip independently developed by ManThink, which is embedded in Huada high-performance MCU and Semtech SX1262/1268. It works in the ultra-long distance of ISM

(industrial, scientific and medical) frequency band, high-performance wireless communication module. OMx41U is a module that supports MT instruction sets. It can be flexibly configured to handle various applications. 1.2 Application fields OM841 module is mainly applicable to applications with long distance and ultra-low power consumption, such as wireless meter reading, sensor network and other Internet of Things applications. 1.3 Main features Ultra Small size: 17.8x13x2.6mm Ultra-low power consumption: sleep current 3A, received current 7mA Ultra-High Performance: maximum emission current 90mA(20dBm), maximum sensitivity-

139dBm LCC encapsulation: suitable for SMT Package compatibility design: pin2pin compatibility for modules with different frequency bands Compatible with standard LoRaWAN: supports versions 1.0.2 and 1.0.3. Global ISM band support: EU868/KR920/AS923 1 2. Product parameters 2.1 Definition of pin PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 Name PIN1 PIN2 PIN3/UART2_RX PIN4 PIN5/UART2_TX PIN6 PIN7 PIN8 PIN9 PIN10/BOOT0 GND ANT GND I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O

deifinition NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open NC,Keep open GND antenna GND 2 14 15 16 17 18 19 20 21 22 23 PIN14/IICSCL PIN15/IICSDA PIN16/UART1_RX PIN17/UART1-TX GND SWDIO SWCLK RESET VCC GND I/O I/O I O

I

NC,Keep open NC,Keep open RX of module TX of module GND NC,Keep open NC,Keep open to reset the module power supply 2.6V-3.6V GND 2.2 Electrical characteristics Operating frequency 915.2-916.6MHz Step frequency Transmit power 1kHz 5-22dBm Receiving sensitivity

-139dBm @292bps Air transmission rate 292bps~15.6kbps Working humidity 0%~90%RH (no condensation) Operating temperature

-45 ~ 85 Supply voltage ESD(Human Body Model) 2.6~ 3.6V 2000V Emission current (typical) 90mA @20dBm Harmonic suppression 1GHz:<-36dBm, >1GHz:< -30dBm CAD/received Current (typical) Sleep current (typical) 7mA 3A Size 17.8mm x 13.0mm x 2.0mm 3 Antenna Impedance 50 2.3 encapsulation information 2.4 Reference Design

4 Typical application design As shown in the preceding figure, PIN17 and PIN16 are UART interfaces and need to be connected to the customer's MCU. The user can reset the module through the RESET. PIN9 is the AUX pin, which is used to output the state of the module, the customer can choose to connect the LED to show whether the current module is busy. If you need the library files of schematic diagram and PCB diagram, please contact the technical support of ManThink. 2.5 Antenna wiring 5 As shown in the preceding figure, the antenna design can refer to the preceding figure. The detailed rules are as follows:

1. Cr2,Lr1 and Cr1 form a -type impedance matching network, which can select vertical and horizontal topologies. Its purpose is to reserve parameter values for fine tuning capacitance and inductance, by default, Lr1 is welded with a resistance of 0, while Cr1 and Cr2 are not welded. 2. Two-layer PCB, FR4 material, 1 ounce copper thickness, suggested theoretical line width is 20mil 3. In addition, it should be noted that the impedance matching of the interface is 50. 3. Usage 3.1UART default parameters 6 Baud Rate Data Bits Stop Bits Parity 9600 8 1 None 3.2 Instruction set Please refer to MT instruction set [MT instruction set](PTL_D02 MT Instruction Set) 4. Ordering information Please read carefully The Purchase instructions. OM841UAS923-N OM841UAU915-N OM841UEU868-N OM841UKR920-N OM841UAS923-L AS923 standard AU915standard EU868standard KR920standard AS923standard 5. Default frequency point For more information, see the documentation: Default Frequency of ManThink's products 6. Contact Us Website: www.manthink.cn E-Mail: support@manthink.cn Tel: 010-56229170 7 FCC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and This device must accept any interference received, including interference that may cause undesired operation. Warning: 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 equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20mm between the radiator & your body. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules FCC Part 15 Subpart C 15.247 & 15.207 & 15.209 2.3 Specific operational use conditions Operation Frequency:902~928MHz Number of Channel:8 Channels Modulation Type:LoRa Antenna Type:Cylindrical antenna Antenna Gain(Peak):2.18 dBi (Provided by customer) The module can be used for mobile applications with a maximum 2.18dBi antenna. The host manufacturer installing this module into their product must ensure that the final composit product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operaition. The host manufacturer has to be aware not to provide informationto 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. 2.4 Limited module procedures Not applicable. The module is a Single module and complies with the requirement of FCC Part 15.212. 2.5 Trace antenna designs Not applicable. The module has its own antenna, and doesnt need a hosts printed board microstrip trace antenna etc. 2.6 RF exposure considerations The module must be installed in the host equipment such that at least 20mm is maintained between theantenna and users body; and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 2.7 Antennas Antenna Specification are as follows:

Antenna Type:Cylindrical antenna Antenna Gain(Peak):2.18 dBi (Provided by customer) This device is intended only for host manufacturers under the following conditions:

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. The antenna must be either permanently attached or employ a unique antenna coupler. As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer 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.). 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID 2ATLHOM841 With their finished product. 2.9 Information on test modes and additional testing requirements Operation Frequency:902~928MHz Number of Channel:8 Channels Modulation Type:LoRa Antenna Type:Cylindrical antenna Antenna Gain(Peak):2.18 dBi (Provided by customer) Host manufacturer must perfom test of radiated & conducted emission and spurious emission, etc according to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product can be sold legally. 2.10 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247 & 15.207 & 15.209 and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

Beijing ManThink Technology Co., Ltd. Section 2.911(d)(5)(i) Certification Equipment Type Company name: Beijing ManThink Technology Co., Ltd. Address: Room 904, JingKai Building B, DiSheng North Road No.1, BDA, Beijing, China Product Name: LoRaWAN Module FCC ID: 2ATLHOM841 Model(s): OM841, UM802, OM822 2.911(d)(5)(i) Equipment Type We, [Beijing ManThink Technology Co., Ltd.] (the applicant) certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Name: donglong Huang Date: 2023-03-09 Title and Company name: Engineer/ Beijing ManThink Technology Co., Ltd. NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

Beijing ManThink Technology Co., Ltd. Section 2.911(d)(5)(ii) Certification Applicant (Covered List) Company name: Beijing ManThink Technology Co., Ltd. Address: Room 904, JingKai Building B, DiSheng North Road No.1, BDA, Beijing, China Product Name: LoRaWAN Module FCC ID: 2ATLHOM841 Model(s): OM841, UM802, OM822 2.911(d)(5)(ii) Applicant filing We, [Insert applicant name] (the applicant) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: donglong Huang Date: 2023-03-09 Title and Company name: Engineer/ Beijing ManThink Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.2

Beijing Manthink Technology Co., Ltd. Section 2.911(d)(7) USA Agent for Service of Process Company name: Beijing Manthink Technology Co., Ltd. Address: Room 904, JingKai Building B DiSheng North Road NO.l, BOA Beijing,China Product Name: LoRaWAN Module FCC ID: 2ATLHOM841 Model(s): OM841 2.911(d)(7) USA Designated Agent for Service of Process We, [Beijing Manthink Technology Co., Ltd.] (the applicant) designate [Wilson Tech Service LLC] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: Wilson Tech Service LLC Address: 1312 17th Street Suite 692, Denver, CO, 80202, US Applicant Company name: Beijing Manthink Technology Co., Ltd. Address: Room 904, JingKai Building B DiSheng North Road NO.l, BOA Beijing,China FRN Code: 0033402033 Contact Name: Wilson Cheung Telephone No: +1-716-965-5112 Email: Wilson.Cheung.FDA@gmail.com FCC ID Number: 2ATLHOM841 Contact Name: Wen Lin Telephone No: 15011388743 Email: linwen@manthink.cn 2.911 (d)(7)USA Agent v1.2 Beijing Manthink Technology Co., Ltd. Signature:

Title: Manager Date: 2023-03-09 Signature:

Title: Purchasing Manager Date: 2023-03-09 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.2

Beijing ManThink Technology Co., Ltd. Agent Authorization Letter

(2023-03-09) RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, authorize Micom Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. This agreement expires one year from the current date. Sincerely, donglong Huang/Engineer Company Name: Beijing ManThink Technology Co., Ltd. Address: Room 904, JingKai Building B, DiSheng North Road No.1, BDA, Beijing, China

Beijing ManThink Technology Co., Ltd. Declaration on Model Differences We, Beijing ManThink Technology Co., Ltd. Room 904, JingKai Building B, DiSheng North Road No.1, BDA, Beijing, China Declare that the following product(s):

FCC ID: 2ATLHOM841 Product Name: LoRaWAN Module Model No.: OM841, UM802, OM822 Utilize the identical circuit design, PCB layout, shielding and interface with (OM841), only the model name different. Therefore this application can be regarded as identical in performance to the submitted test sample. The manufacturer would take all the responsibilities for the above product(s). For and on behalf of Authorized person Name: donglong Huang Position: Engineer Date of issue: 2023-03-09

*I hereby declare that I am entitled to sign on behalf of the applicant and that the information supplied is correct and complete.

Beijing ManThink Technology Co., Ltd. Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-03-09 Subject; Modular Transmitter Application Company name:

FCC ID: 2ATLHOM841 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 2ATLHOM841 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 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. 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. The module must contain power supply regulation on the module. 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). The module must demonstrate compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The module must comply with RF exposure requirements Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Has RF shielding. The modular have buffered modulation/data inputs. The modular transmitter have its own power supply regulation.(DC 3.3V) The model number of the replaceable antenna is specified in the manual. The module was tested in a stand-alone configuration, please refer to the Setup Photo for the detail Please refer to label sample exhibit - host labeling is described in integration manual The required FCC rule has been fulfilled and all the instructions for the maintaining compliance have been clearly stated in the User Manual. The MPE evaluation with 20cm distance restriction is submitted for the compliance of RF Exposure requirement. FCC Modular Approval Request Rev 3.0 Beijing ManThink Technology Co., Ltd. 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. Requirements of KDB 996369 D03 Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements;

User Manual Page Number KDB reference Ref Sect Page 8~10 2.2 Page 8~10 2.3 Page 8~10 2.4 Page 8~10 2.5 Page 8~10 2.6 Page 8~10 2.7 Page 8~10 2.8 Page 8~10 2.9 List of applicable FCC rules Summarize the specific operational use conditions Limited module procedures Trace antenna designs RF exposure considerations Antennas Label and compliance information Information on test modes and additional testing requirements Additional testing, Part 15 Subpart B disclaimer Page 8~10 2.10 Name: donglong Huang Date: 2023-03-09 Title: Engineer Signature of applicant FCC Modular Approval Request Rev 3.0

Beijing ManThink Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2ATLHOM841 Date: 2023-03-09 To Whom It May Concern, Pursuant to the provisions of the Commissions 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 Operational Description SW SECURITY DESCRIPTION Parts List Tune up 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: donglong Huang Title: Engineer