2AZ3C720HEALTHWIFI Module

WF-R710-RWA1 IEEE 802.11b/g/n 1T1R UART SoC Module Features：  Reserving System IEEE Std. 802.11b/g/n Wi-Fi 1T1R System-on-Chip UART module  Chip Solution RTL8710B  I/O Interface & Size Standard two UART/GPIO I/O Interface Support RF Testing and OTP/Flash Programming 37.8mm x21.6mm x4.8mm Model Overview： Model Interface RF Standard Freqency Voltage Input WF-R710-RWA1 UART IEEE 802.11b/g/n 2.4G 5V 1. Introduction WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 2 of 10 WF-R710-RWA1 SoC module designed base on RTL8710B chip solution, The SOC module is a highly intelligent platform for the Internet of Everything that contains a low-power Wi-Fi connectivity solution on one package. It includes a number of TCP/IP based connectivity protocols along with SSL, enabling a low-cost, low-complexity system to obtain full-featured internet connectivity and reliable information exchange. Realtek RTL8710B is a highly integrated single-chip low power 802.11n Wireless LAN (WLAN) network controller. It combines an ARM-CM4F MCU, WLAN MAC, a 1T1R capable WLAN baseband, and RF in a single chip. It also provides a bunch of configurable GPIOs which are configured as digital peripherals fordifferent applications and control usage. RTL8710B integrates internal memories for complete WIFI protocol functions. The embedded memory configuration also provides simple application developments. 1.1 RF module Overview The general HW architecture for the module is shown in Figure-1, The WF-R710-RWA1 module is a aloned chipset solution, system-on-chip-module, 1x1 802.11 b/g/n device optimized for low-power embedded applications with single-stream capability for both transmit and receive. It has an integrated network processor with a large set of TCP/IP with IPv4/IPv6 based services. Figure 1 WF-R710-RWA1 Block Diagram 1.2. RF Specification Reference WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 3 of 10 SoC RF specification refer to below list. Main Chipset RTL8710B SoC RF standard IEEE 802.11 b/g/n Operating Frequency 2.412~2.484 GHz UART Interface For testing and OTP programming (Calibration data) Antenna Design Options PCB天线 RF Modulation WIFI: 11b: DBPSK, DQPSK and CCK and DSSS 11a/g: BPSK, QPSK, 16QAM, 64QAM and OFDM 11n: BPSK, QPSK, 16QAM, 64QAM and OFDM Operation Voltage 5.0V +/-10% input 1.3. System Functions SoC S/W & system general specification refer to below list: Main Chipset RTL8710B WLAN PHY Features 1T1R Connective WIFI Direct support Package QFN32 (5x5mm) HW acceleration WPA,WPA2, WPS2.0 Form factor Maximum 12 GPIO pins PCB Stack 2-layers design (1+/-0.15mm) Module Dimension Typical，37.8mm x21.6mm x4.8mm Operation Temperature -20°C to +85°C Storage Temperature -40°C to +125°C 2. Mechanical Specification WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 4 of 10 2.1 PCBA Mechanical Outline Drawing Typical Dimension (W x L x T): 37.8mm x21.6mm x4.8mm (+/-0.2 mm) PCB Thickness: 1mm (+/-0.15mm) TOP SIDE BOTTOM 2.2 Pin Distribution Definition Pins sequence and distribution list as follows Pins Explanation 1 TXD1 Uart_TX 2 RXD1 Uart_RX 3 GND GND 4 Vin 5V 5 LOG_U_OUT debug/UART TX 6 LOG_U_IN debug/UART RX 7 BOOT GPIOA_12 8 KEY GPIOA_5 9 GND GND 10 3.3V 3.3V 11 CHIP_EN CHIP_EN 12 SWD_CLK GPIOA_14 13 SWD_DATA GPIOA_15 WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 5 of 10 3. Electrical Specification This Specification is based-on conductive DVT testing result. The extreme condition include overall temperature +25°C and overall voltage 3.3V. 3. 1 IEEE 802.11b Section: Items Contents Specification IEEE802.11b Mode DBPSK, DQPSK and CCK and DSSS Channel CH1 to CH11 Data rate 1, 2, 5.5, 11Mbps TX Characteristics Min. Typ. Max. Unit Remark 1. Power Levels(Calibrated) 1) 15Bm Target (For Each antenna port) - 15 19 dBm 2. Spectrum Mask @ Target Power 1) fc +/-11MHz to +/-22MHz - - -30 dBr 2) fc > +/-22MHz - - -50 dBr 3. Constellation Error(EVM) @ Target Power 1) 1Mbps - - -10 dB 2) 2Mbps - - -10 dB 3) 5.5Mbps - - -10 dB 4) 11Mbps - - -10 dB 4. Frequency Error -15 - 15 ppm RX Characteristics Min. Typ. Max. Unit 5. Minimum Input Level Sensitivity(each chain) 1) 1Mbps (FER ≦8%) - - -88 dBm 2) 2Mbps (FER ≦8%) - - -86 dBm 3) 5.5Mbps (FER ≦8%) - - -83 dBm 4) 11Mbps (FER ≦8%) - - -79 dBm 6. Maximum Input Level (FER ≦8%) -10 - - dBm WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 6 of 10 3.2 IEEE 802.11g Section: Items Contents Specification IEEE802.11g Mode BPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH1 to CH11 @ 11g Data rate 6, 9, 12, 18, 24, 36, 48, 54Mbps TX Characteristics Min. Typ. Max. Unit Remark 1. Power Levels 1) 14dBm Target (For Each antenna port) @ 11g - 14 17 dBm 2. Spectrum Mask @ Target Power 1) at fc +/-11MHz - - -20 dBr 2) at fc +/-20MHz - - -28 dBr 3) at fc > +/-30MHz - - -40 dBr 3. Constellation Error(EVM) @ Target Power 1) 6Mbps - - -10 dB 2) 9Mbps - - -11 dB 3) 12Mbps - - -12 dB 4) 18Mbps - - -13 dB 5) 24Mbps - - -16 dB 6) 36Mbps - - -19 dB 7) 48Mbps - - -22 dB 8) 54Mbps - - -25 dB 4. Frequency Error 1) IEEE802.11g -15 - 15 ppm RX Characteristics Min. Typ. Max. Unit 5. Minimum Input Level Sensitivity(each chain) 1) 6Mbps (PER ≦10%) - - -82 dBm 2) 9Mbps (PER ≦10%) - - -81 dBm 3) 12Mbps (PER ≦10%) - - -79 dBm 4) 18Mbps (PER ≦10%) - - -77 dBm 5) 24Mbps (PER ≦10%) - - -74 dBm 6) 36Mbps (PER ≦10%) - - -70 dBm 7) 48Mbps (PER ≦10%) - - -66 dBm 8) 54Mbps (PER ≦10%) - - -65 dBm 6. Maximum Input Level (PER ≦10%) 1) IEEE802.11g -20 - - dBm WF-R710-RWA1 IEEE 802.11 b/g/n 1T1R UART SoC Module Sichuan AI-Link Technology Co.,Ltd. page 7 of 10 3.3 IEEE 802.11n HT20 Section: Items Contents Specification IEEE802.11n HT20 Mode BPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH1 to CH11 Data rate (MCS index) MCS0/1/2/3/4/5/6/7 TX Characteristics Min. Typ. Max. Unit Remark 1. Power Levels 1) 12dBm Target (For Each a…

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720 (Beijing) Health iTech Co., Ltd. Jun 1st 2021 Federal Communications Commission 445 12 th Street SW Washington, DC 20554 Subject: Limited Agency Agreement (720 (Beijing) Health iTech Co., Ltd.) FCC ID: 2AZ3C720HEALTH To Whom It May Concern: We, (720 (Beijing) Health iTech Co., Ltd.), hereby authorized Intertek Testing Services to act as our Agent for the purpose of preparing application for FCC ID number (2AZ3C720HEALTH) under all applicable parts of the FCC rules and regulations. The effective date of this limited agency agreement is (Jun 1st 2021). The Limited Agency Agreement expires on (Dec 1st 2021), unless sooner terminated or extended by written notice to Intertek Testing Services and the Federal Communications Commission. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. The applicant is not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 U.S.C. 862, and no party to the application is subject to a denial of federal benefits pursuant to that section. If you have any questions or comments, please do not hesitate to contact me. Sincerely, CAOLAN Certification Manager

Modular Approval Request Letter 720 (Beijing) Health iTech Co., Ltd.. (+86) 010 82026102 No 101-42、101-43 （Dongsheng district）, 9 th Floor, No 1 Building, No 8 th ,Heiquan Road, Haidian District, Beijing City, China Product Name: Wifi Module Model Number: WF-R710-RWA1 FCC ID: 2AZ3C720HEALTH Date: 2021-06-29 Requirement of Public Notice DA00‐1407 / part 15.212 1. The modular transmitter must have its own RF shielding. Yes. The module has its own RF shielding. 2. The modular transmitter must have buffered modulation/data inputs. Yes This module is not only used in our own specific products but also for OEM market. We have total control of the design and the data protocol through IC Chip “U1 RTL8710B”. The radio IC we use complies with FCC part 15. 3. The modular transmitter must have its own power supply regulation. Yes This module is not only used in our own specific products but also for OEM market, this module has its own voltage regular (U2). The radio IC complies with FCC part 15. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). Yes The antenna is a PCB antenna which is permanently attached. 5. The modular transmitter must be tested in a stand‐alone configuration, i.e., the module must not be inside another device during testing. Yes This module has been tested in a stone-alone configuration as shown in the test setup photos. 6. The modular transmitter must be labeled with its own FCC ID number, and, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. Yes This module will be labelled with its FCC ID number. When the module is installed in our products and it is not visible, an external label will be applied which refer to the modules FCC ID number inside. 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the Yes This module is not only used in our own specific products but also for OEM market. The user manuals are based on the requirement specifications. module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine Environmental evaluation for RF Exposure to demonstrate compliance. In addition spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Yes The module is instructed the user to install the host with more than 20cm from the user. This module is not only used in our own specific products but also for OEM market.. And the RF exposure we have prepared. Thank you. Sincerely, Cao Lan 2021-06-29

Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Job No.: 210427108GZU FCC ID: 2AZ3C720HEALTH Version: 08 July 2020 Page 1 of 3 FCC RF Exposure-Mobile (MPE) RF Exposure Compliance Requirement Model no.: 1. Standard requirement 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 limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. (a) Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times ׀E׀ 2 ׀, H׀ 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times ׀E׀ 2 ׀, H׀ 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 -- -- F/1500 30 1500-100000 -- -- 1.0 30 Note: f=frequency in MHz; *Plane-wave equivalent power density Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Job No.: 210427108GZU FCC ID: 2AZ3C720HEALTH Version: 08 July 2020 Page 2 of 3 FCC RF Exposure-Mobile (MPE) 2. MPE Calculation Method E (V/m)=(30*P*G) 0.5 /d Power Density: Pd(W/m 2 )=E 2 /377 E=Electric Field (V/m) P=Peak RF output Power (W) G=EUT Antenna numeric gain (numeric) d= Separation distance between radiator and human body (m) The formula can be changed to Pd= (30*P*G)/(377*d 2 ) From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. 3. Calculated Result and Limit (1)802.11b 1Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.26 17.4 54.95 0.01376 1 Complies 2437 1.26 17.2 52.48 0.01314 1 Complies 2462 1.26 17.4 54.95 0.01376 1 Complies (2) 802.11g 6Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.26 9.8 9.55 0.00239 1 Complies 2437 1.26 9.7 9.33 0.00234 1 Complies 2462 1.26 9.5 8.91 0.00223 1 Complies (2) 802.11n HT20 6.5Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.26 9.3 8.51 0.00213 1 Complies 2437 1.26 9.5 8.91 0.00223 1 Complies 2462 1.26 9.8 9.55 0.00239 1 Complies (2) 802.11n HT40 13.5Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2422 1.26 9.6 9.12 0.00228 1 Complies 2437 1.26 9.7 9.33 0.00234 1 Complies 2452 1.26 9.9 9.77 0.00245 1 Complies Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Job No.: 210427108GZU FCC ID: 2AZ3C720HEALTH Version: 08 July 2020 Page 3 of 3 FCC RF Exposure-Mobile (MPE) Test Location: Intertek Testing Services Shenzhen Ltd. Guangzhou Branch All tests were performed at: Room102/104, No 203, KeZhu Road, Science City, GETDD Guangzhou, China

720 (Beijing) Health iTech Co., Ltd. TEST REPORT SCOPE OF WORK EMC TESTING–WF-R710-RWA1 REPORT NUMBER 210427108GZU-001 ISSUE DATE [REVISED DATE] 26-June-2021 [--------------------] PAGES 94 DOCUMENT CONTROL NUMBER FCC WIFI-d © 2017 INTERTEK TEST REPORT Room 02, & 101/E201/E301/ E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Telephone: +86 20 8213 9688 Facsimile: +86 20 3205 7538 www.intertek.com.cn This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Version: 10 June 2019 Page 2 of 94 FCC WIFI-d Applicant Name & Address : 720 (Beijing) Health iTech Co., Ltd. No 101-42/101-43 （Dongsheng district）, 9th Floor, No 1 Building, No 8th , Heiquan Road, Haidian District, Beijing City, China. Manufacturing Site : See page 6 Intertek Report No: FCC ID: : 210427108GZU-001 2AZ3C720HEALTH Test standards 47 CFR PART 15 Subpart C: 2019 section 15.247 Sample Description Product : WiFi module Model No. : WF-R710-RWA1 Electrical Rating : 5VDC Serial No. : Not Labeled Date Received : 27 April 2021 Date Test Conducted : 06 May 2021-13 June 2021 Prepared and Checked By Elena Lei Engineer Approved By: Strong Yao Manger TEST REPORT Intertek Report No.: 210427108GZU-001 Version: 10 June 2019 Page 3 of 94 FCC WIFI-d CONTENT TEST REPORT ................................................................................................................... 1 CONTENT ..................................................................................................................... 3 1.0 TEST RESULT SUMMARY..................................................................................... 4 2.0 GENERAL DESCRIPTION ...................................................................................... 5 2.1 PRODUCT DESCRIPTION .................................................................................................... 5 2.2 RELATED SUBMITTAL(S) GRANTS ........................................................................................ 6 2.3 TEST METHODOLOGY ....................................................................................................... 6 2.4 TEST FACILITY.................................................................................................................. 6 3.0 SYSTEM TEST CONFIGURATION ........................................................................... 6 3.1 JUSTIFICATION ................................................................................................................. 6 3.2 EUT EXERCISING SOFTWARE .............................................................................................. 7 3.3 SPECIAL ACCESSORIES ....................................................................................................... 7 3.4 MEASUREMENT UNCERTAINTY ........................................................................................... 8 3.5 EQUIPMENT MODIFICATION .............................................................................................. 8 3.6 SUPPORT EQUIPMENT LIST AND DESCRIPTION ....................................................................... 8 4.0 MEASUREMENT RESULTS ..................................................................................10 4.1 ANTENNA REQUIREMENT ................................................................................................ 10 4.2 6 DB BANDWIDTH (DTS BANDWIDTH)............................................................................... 11 4.3 DUTY CYCLE .................................................................................................................. 19 4.4 MAXIMUM AVERAGE CONDUCTED OUTPUT POWER ............................................................... 23 4.5 PEAK POWER SPECTRAL DENSITY ...................................................................................... 25 4.6 OUT OF BAND CONDUCTED EMISSIONS ............................................................................. 33 4.7 OUT OF BAND RADIATED EMISSIONS ................................................................................. 41 4.8 RADIATED EMISSIONS IN RESTRICTED BANDS ...................................................................... 41 4.9 BAND EDGES REQUIREMENT ............................................................................................ 85 4.10 CONDUCTED EMISSION TEST ............................................................................................ 91 5.0 TEST EQUIPMENT LIST.......................................................................................94 TEST REPORT Intertek Report No.: 210427108GZU-001 Version: 10 June 2019 Page 4 of 94 FCC WIFI-d 1.0 TEST RESULT SUMMARY Test Item Test Requirement Test Method Result Antenna Requirement FCC PART 15 C section 15.247 (c) and Section 15.203 FCC PART 15 C section 15.247 (c) and Section 15.203 PASS 6 dB Bandwidth (DTS bandwidth) FCC PART 15 C section 15.247 (a)(2) ANSI C63.10: Cla…

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Note:EUT is positioned at the center of the turntable to keep 3 m between the measurement antenna and EUT for the radiated emissions measurements Radiated Emission (Below 1GHz) Radiated Emission (Above 1GHz) Radiated desktop Conducted Disturbance