2ADQO3SB3350N3Bluetooth&Wi-Fi dual band Communication Module

美的IoT公司 1 / 20 Midea IoT Module User Mannual Manufacturer name: GD Midea Air-Conditioning Equipment Co.,Ltd Module name: Bluetooth & Wi-Fi dual band Communication Module Model specification: MM3SB3350N3 Material code: MM3SB3350N3 Preparation: zhanghaixiang Sign: zhouyuliang, liuyali Review: chenting This document is confidential, and all information contained in it shall be interpreted by midea IoT company. All unauthorized and permitted copying shall not be recognized and prohibited. Midea IoT Address: 3rd floor, building 4, midea global innovation center, beijiao town, shunde district, foshan city, guangdong province Tel: 美的IoT公司 2 / 20 Index 1、 Product Overview .......................................................................................................... 3 2、 Top view ........................................................................................................................... 5 3、 Radio frequency characteristics ................................................................................. 7 3.1 transmission and reception characteristics ...................................................... 7 3.2 characteristics of the module antenna ............................................................ 13 4. Product structure diagram ............................................................................................ 14 4.1 PCB size .................................................................................................................... 14 4.2 line drawings .......................................................................................................... 15 4.3 label requirements ................................................................................................ 15 5. Power consumption description.................................................................................. 17 6. Electrical parameters ....................................................................................................... 18 7. Compliance with standards and certification .......................................................... 19 8. Precautions for use .......................................................................................................... 19 美的IoT公司 3 / 20 1、Product Overview MM3SB3350N3 wireless module is a fully functional, highly integrated, low power consumption dedicated Wi-Fi & bluetooth module for the Internet of things. It supports IEEE802.11a/b/g/n protocol, also embedded IPV4, TCP, UDP, DNS, HTTP and other complete network protocol, so that the terminal in the Internet of things applications more reliable, convenient and easy to use. MM3SB3350N3 core chip adopts the MT7697D single chip scheme of Media corp. The chip is highly integrated with CPU, PMU, RAM, T/R SW, LNA, PA and other major parts, thus greatly reducing the power consumption of the whole machine. The module adopts the integrated three-dimensional metal antenna design, which can not only reduce the cost of the antenna for customers, but also save the assembly space of the antenna, greatly reduce the area of the board, and make the product more competitive. At present, the module provides a complete serial port interface function to communicate with the device, and can connect the cloud and the device through the serial port and the mobile client. The module has the following characteristics:  Support IEEE 802.11a/b/g/n protocol  Supports 20MHz and 40MHz bandwidth in the 2.4ghz band and 5GHz band  Support bluetooth BLE 4.2  The module has a built-in dual-mode metal antenna  Low power listening mode  Both up and down theoretically support a connection rate of 150Mbps  Support encryption protocols: WFA, WPA, WPA2, WPS2.0  Support IPV4, TCP, UDP, DNS, HTTP and other network protocols 美的IoT公司 4 / 20 The block diagram of the module is as follows: Bluetooth link Controller Bluetooth Audio CODEC Wi - Fi dual - band RF Wi - Fi baseband Wi - Fi MAC Bluetooth Baseband Bluetooth RF Wi - Fi PSE UART x 1 EFUSE ( 4 Kb ) SYSRAM N 9 CPU ILM / DLM SRAM / ROM N 9 Subsystem TCM / Cache 96 KB CM 4 SYSRAM 256 KB ARM Cortex M 4 F Crypto Engine Watch Dog Timer 25 Channel Generic DMA SPI Flash controller General Purpose Timer PMU IrDA SPI M 4 Subsystem SPI Flash GPIO / PWM x 28 I 2 C x 2 I 2 S 4 Channel ADC Note/FCC warning: 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 美的IoT公司 5 / 20 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. MODIFICATION: Any changes or modifications not expressly approved by the grantee of this device could void the user’s authority to operate the device. Because the working frequency of the device is in 5150-5250 MHZ, so this module is suitable for indoor use of the equipment. This equipment must be installed to provide a separation distance of at least 20cm from all persons. 2、Top view Positive figure 美的IoT公司 6 / 20 On the back of the figure 美的IoT公司 7 / 20 3、Radio frequency characteristics 3.1 transmission and reception characteristics Support IEEE 802.11a/b/g/n standard; For paramet…

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GD Midea Air-Conditiong Equipment Co., Ltd Date (10/04/2020) TUV SUD BABT TCB Octagon House, Segensworth Road, Fareham, Hampshire, PO15 5RL Confidentiality Request FCC ID: 2ADQO3SB3350N3 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission’s Rules, GD Midea Air-Conditioning Equipment Co., Ltd. hereby requests permanent confidential treatment of information accompanying this application as outlined below: [Common exhibits for which confidentiality is requested are: Schematics Bill of Materials/Parts List Block Diagrams Theory of Operation] GD Midea Air-ConditioningEquipment Co., Ltd.also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days: [Common exhibits for which short-term confidentiality is requested are: Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Telephone Number: Email: [email protected]

Example of Modular Approval request letter (for TCB – TCB approval): GD Midea Air-Conditiong Equipment Co., Ltd Date (12/06/2020) TUV SUD BABT TCB Octagon House, Segensworth Road, Fareham, Hampshire, PO15 5RL Dear Sir/Madam, RE: Modular Approval Request for Model: FCC ID: 2ADQO3SB3350N3 The following attestation addresses the requirements to support modular approval: Modular approval requirement Yes No * (a) 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 (b) 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 (c) The module must contain power supply regulation on the module Yes (d) 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) Yes (e) The module must demonstrate compliance in a stand-alone configuration Yes (f) The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements) Yes (g) The module must comply with all specific rules applicable to the transmitter. The grantee must provide comprehensive instructions to explain compliance requirements Yes (h) The module must comply with RF exposure requirements Yes * Please provide a detailed explanation if the answer is “No.” Yours sincerely, Name: Jim Xu Title: Engineer

External Photos

Lab Location

Internal Photos RF Antenna

Report Number: 68.950.20.0335.01 EMC_SZ_FR_39.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 3 MPE Calculation Product: Bluetooth&Wi-Fi dual band Communication Module Model no.: MM3SB3350N3 FCC ID: 2ADQO3SB3350N3 Rating: DC 3.3V RF Transmission Frequency: Bluetooth:2402-2480MHz For Wi-Fi 2.4G: 2412~2462 MHz For Wi-Fi 5GHz: 5.180GHz~5.240GHz; 5.260GHz~5.320GHz; 5.500GHz~5.700GHz; 5.745GHz~5.825GHz Modulation: DSSS, OFDM Antenna Type: Internal Antenna Max Antenna Gain: Bluetooth: 2.0dBi Wi-Fi 2.4GHz: 2.0dBi Wi-Fi 5GHz: 2.0dBi Description of the EUT: MM3SB3350N3 is Bluetooth&Wi-Fi Communication Module with Bluetooth, Wi-Fi function. According to subpart 15.247(i)and subpart §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm2) Averaging Time (minutes) 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f²) 30 30–300 27.5 0.073 0.2 30 300–1,500 / / f/1500 30 1,500–100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Calculated Formulary: Predication of MPE limit at a given distance S = PG/4R² = power density (in appropriate units, e.g. mW/cm2); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Report Number: 68.950.20.0335.01 EMC_SZ_FR_39.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 3 Calculated Data: for 5G Wi-Fi Maximum peak output power at antenna input terminal (dBm): 13.8 Maximum peak output power at antenna input terminal (mW): 23.99 Prediction distance (cm): 20 Antenna Gain, typical (dBi): 2.0 Maximum Antenna Gain (numeric): 2.0 The worst case is power density at predication frequency at 20 cm (mW/cm2): 0.0075 MPE limit for general population exposure at prediction frequency (mW/cm2): 1.0 For 2.4G Wi-Fi Maximum peak output power at antenna input terminal (dBm): 14.3 Maximum peak output power at antenna input terminal (mW): 26.91 Prediction distance (cm): 20 Antenna Gain, typical (dBi): 2.0 Maximum Antenna Gain (numeric): 2.0 The worst case is power density at predication frequency at 20 cm (mW/cm2): 0.0085 MPE limit for general population exposure at prediction frequency (mW/cm2): 1.0 For BLE Maximum peak output power at antenna input terminal (dBm): 6.18 Maximum peak output power at antenna input terminal (mW): 4.15 Prediction distance (cm): 20 Antenna Gain, typical (dBi): 0 Maximum Antenna Gain (numeric): 0 The worst case is power density at predication frequency at 20 cm (mW/cm2): 0.00052 MPE limit for general population exposure at prediction frequency (mW/cm2): 1.0 Report Number: 68.950.20.0335.01 EMC_SZ_FR_39.00 FCC Release 2014-03-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 3 The max power density 0.0085 (mW/cm 2 ) < 1 (mW/cm 2 ) Result: Compliant TUV SUD China, Shenzhen Branch Reviewed by: Prepared By: John Zhi/ Project Manager Warlen Song/Project Engineer Date: 2020-06-29 Date: 2020-06-29

Report Number: 68.950.20.0125.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 64 FCC - TEST REPORT Report Number : 68.950.20.0125.01 Date of Issue: June 29, 2020 Model : MM3SB3350N3 Product Type : Bluetooth&Wi-Fi dual band Communication Module Applicant : GD Midea Air-Conditioning Equipment Co., Ltd. Address : Lingang Road Beijiao, Shunde FOSHAN China Manufacturer&Factory : GD Midea Air-Conditioning Equipment Co., Ltd. Address : Lingang Road Beijiao, Shunde FOSHAN China Test Result : ◼ Positive  Negative Total pages including Appendices : 64 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch is a subcontractor to TÜV SÜD Product Service GmbH according to the principles outlined in ISO 17025. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch reports apply only to the specific samples tested under stated test conditions. Construction of the actual test samples has been documented. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. The manufacturer/importer is responsible to the Competent Authorities in Europe for any modifications made to the production units which result in non-compliance to the relevant regulations. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch shall have no liability for any deductions, inferences or generalizations drawn by the client or others from TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch issued reports. This report is the confidential property of the client. As a mutual protection to our clients, the public and ourselves, extracts from the test report shall not be reproduced except in full without our written approval Report Number: 68.950.20.0125.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 64 1 Table of Contents 1 Table of Contents ........................................................................................................................................................... 2 2 Details about the Test Laboratory.................................................................................................................................... 3 3 Description of the Equipment Under Test ........................................................................................................................ 4 4 Summary of Test Standards ............................................................................................................................................ 5 5 Summary of Test Results ................................................................................................................................................ 6 6 General Remarks ............................................................................................................................................................ 7 7 Test Setups ..................................................................................................................................................................... 8 8 Systems test configuration .............................................................................................................................................. 9 9 Technical Requirement ................................................................................................................................................. 10 9.1 Conducted Emission ............................................................................................................................................. 10 9.2 Conducted peak output power ............................................................................................................................... 13 9.3 6dB bandwidth and 99% Occupied Bandwidth ................................................................................................. 15 9.4 Power spectral density .......................................................................................................................................... 24 9.5 Spurious RF conducted emissions ......................................................................................................................... 29 9.6 Band edge testing ................................................................................................................................................. 43 9.7 Spurious radiated emissions for transmitter ........................................................................................................... 47 10 Test Equipment List...................................................................................................................................................... 63 11 System Measurement Uncertainty ................................................................................................................................. 64 Report Number: 68.950.20.0125.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 64 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shen…

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Report Number: 68.950.20.0124.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 34 FCC - TEST REPORT Report Number : 68.950.20.0124.01 Date of Issue: June 29, 2020 Model : MM3SB3350N3 Product Type : Bluetooth&Wi-Fi dual band Communication Module Applicant : GD Midea Air-Conditioning Equipment Co., Ltd. Address : Lingang Road Beijiao, Shunde FOSHAN China Manufacturer&Factory : GD Midea Air-Conditioning Equipment Co., Ltd. Address : Lingang Road Beijiao, Shunde FOSHAN China Test Result : ◼ Positive  Negative Total pages including Appendices : 34 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch is a subcontractor to TÜV SÜD Product Service GmbH according to the principles outlined in ISO 17025. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch reports apply only to the specific samples tested under stated test conditions. Construction of the actual test samples has been documented. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. The manufacturer/importer is responsible to the Competent Authorities in Europe for any modifications made to the production units which result in non-compliance to the relevant regulations. TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch shall have no liability for any deductions, inferences or generalizations drawn by the client or others from TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch issued reports. This report is the confidential property of the client. As a mutual protection to our clients, the public and ourselves, extracts from the test report shall not be reproduced except in full without our written approval. Report Number: 68.950.20.0124.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 34 1 Table of Contents 1 Table of Contents......................................................................................................................................................... 2 2 Details about the Test Laboratory .............................................................................................................................. 3 3 Description of the Equipment Under Test .................................................................................................................. 4 4 Summary of Test Standards ....................................................................................................................................... 5 5 Summary of Test Results ............................................................................................................................................ 6 6 General Remarks ......................................................................................................................................................... 7 7 Test Setups .................................................................................................................................................................. 8 8 Systems test configuration .......................................................................................................................................... 9 9 Technical Requirement.............................................................................................................................................. 10 9.1 Conducted Emission ............................................................................................................................................. 10 9.2 Conducted peak output power .......................................................................................................................... 13 9.3 Power spectral density ...................................................................................................................................... 15 9.4 6 dB Bandwidth and 99% Occupied Bandwidth .............................................................................................. 17 9.5 Spurious RF conducted emissions ................................................................................................................... 20 9.6 Band edge .......................................................................................................................................................... 24 9.7 Spurious radiated emissions for transmitter .................................................................................................... 26 10 Test Equipment List ............................................................................................................................................... 33 11 System Measurement Uncertainty ....................................................................................................................... 34 Report Number: 68.950.20.0124.01 EMC_SZ_FR_23.03 FCC Release 2017-06-20 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng W isdomland Business Park, Nantou Checkpoint Road 2, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 34 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Nantou Checkpoint Road 2, Nanshan District Shenzhen 518052 P.R. China Telephone: 86 755 8828 6998 Fax: 86 755 828 5299 FC…

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Radiated Spurious emission 30MHz-1GHz Radiated Spurious emission 1GHz – 18GHz Test Setup Photos Radiated Spurious emission 18GHz – 40GHz Conducted Emission DFS Test Setup Photo