FCC ID: 2AOKI-WFR710RTU1 Wireless Module

WF-R710-RTU1 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 18.0mm x20.0mm x2.9mm Model Overview Model Interface RF Standard Data rate Freqency I/O Voltage Input WF-R710-RTU1 UART IEEE 802.11b/g/n 72.2Mbps 2.4G GPIO 3.3V IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 1. Introduction WF-R710-RTU1 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. RTL8710BN 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-RTU1 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-RTU1 Block Diagram Sichuan AI-Link Technology Co.,Ltd. page 2 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 1.2. RF Specification Reference SoC RF specification refer to below list. Main Chipset SoC RF standard Operating Frequency UART Interface Antenna Design Options RF Modulation Data rates RTL8710B IEEE 802.11 b/g/n 2.412~2.462 GHz For testing and OTP programming (Calibration data) PCB printed WIFI: 11b: DBPSK, DQPSK and CCK and DSSS 11g: BPSK, QPSK, 16QAM, 64QAM and OFDM 11n: BPSK, QPSK, 16QAM, 64QAM and OFDM 11b: 1, 2, 5.5 and 11Mbps 11g: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps 11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65up to 72.2 Mbps Operation Voltage 3.3V +/-10% input 1.3. System Functions SoC S/W & system general specification refer to below list:

Main Chipset WLAN PHY Features Connective Package Bandwidth HW acceleration Form factor PCB Stack Module Dimension RTL8710B 1T1R WIFI Direct support QFN32 (5x5mm) 20MHz bandwidth transmission WPA,WPA2, WPS2.0 Maximum 9 GPIO pins 2-layers design (1+/-0.15mm) Typical18.0mm x20.0mm x2.9mm Operation Temperature Storage Temperature

-20 to +85

-40 to +125 Sichuan AI-Link Technology Co.,Ltd. page 3 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 2. Mechanical Specification 2.1 PCBA Mechanical Outline Drawing Typical Dimension (W x L x T): 18.0 mm x20.0mm x2.9mm (+/-0.2 mm) PCB Thickness: 1mm (+/-0.15mm) 2.2 Pin Distribution Definition Pins sequence and distribution list as follows Define 3V3 EN IO14 IO15 IO0 IO12 NC IO5 GND NC IO18 IO23 GND IO19 IO22 IO30 IO29 GND Description 3.3V EN PWM0 PWM1 PWM2 PWM3 NC PWM4 GND NC UART0_RXD,SPI1_CLK,SPI0_SCL,I2C1_SCL,TIMER4_TRIG UART0_TXD,SPI1_MOSI,SPI0_MOSI,I2C1_SDA, PWM0 GND UART0_CTS,SPI1_CS,SPI0_CS,I2C0_SDA, TIMER5_TRIG UART0_RTS,SPI1_MISO,SPI0_MISO,I2C0_SCL,PWM5 UART1_LOG_TXD UART1_LOG_RXD GND Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Sichuan AI-Link Technology Co.,Ltd. page 4 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module 3. Electrical Specification This Specification is based-on conductive DVT testing result. The extreme condition include overall temperature +25 and overall voltage 3.3V. WF-R710-RTU1 3. 1 IEEE 802.11b Section:

Items Contents TX Characteristics 1. Power Levels(Calibrated) 1) 16dBm Target (For Each antenna port) 2. Spectrum Mask @ Target Power 1) fc +/-11MHz to +/-22MHz 2) fc > +/-22MHz 3. Constellation Error(EVM) @ Target Power Specification Mode Channel Data rate 1) 1Mbps 2) 2Mbps 3) 5.5Mbps 4) 11Mbps 4. Frequency Error RX Characteristics 5. Minimum Input Level Sensitivity(each chain) 1) 1Mbps (FER 8%) 2) 2Mbps (FER 8%) 3) 5.5Mbps (FER 8%) 4) 11Mbps (FER 8%) 6. Maximum Input Level (FER 8%) IEEE802.11b DBPSK, DQPSK and CCK and DSSS CH1 to CH13 1, 2, 5.5, 11Mbps Max. 19

-30

-50

-10

-10

-10

-10 15 Max.

-88

-86

-83

-79

Unit dBm dBr dBr dB dB dB dB ppm Unit dBm dBm dBm dBm dBm Typ. 16

Typ.

Remark Min.

-15 Min.

-10 Sichuan AI-Link Technology Co.,Ltd. page 5 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module 3.2 IEEE 802.11g Section:

WF-R710-RTU1 Items Specification Mode Channel Data rate TX Characteristics 1. Power Levels 1) 14dBm Target (For Each antenna port) @ 11g 2. Spectrum Mask @ Target Power 3. Constellation Error(EVM) @ Target Power 1) at fc +/-11MHz 2) at fc +/-20MHz 3) at fc > +/-30MHz 1) 6Mbps 2) 9Mbps 3) 12Mbps 4) 18Mbps 5) 24Mbps 6) 36Mbps 7) 48Mbps 8) 54Mbps 4. Frequency Error 1) IEEE802.11g RX Characteristics 5. Minimum Input Level Sensitivity(each chain) 1) 6Mbps (PER 10%) 2) 9Mbps (PER 10%) 3) 12Mbps (PER 10%) 4) 18Mbps (PER 10%) 5) 24Mbps (PER 10%) 6) 36Mbps (PER 10%) 7) 48Mbps (PER 10%) 8) 54Mbps (PER 10%) 6. Maximum Input Level (PER 10%) 1) IEEE802.11g Contents IEEE802.11g BPSK, QPSK, 16QAM, 64QAM and OFDM CH1 to CH13 @ 11g 6, 9, 12, 18, 24, 36, 48, 54Mbps Min.

-15 Min.

-20 Typ. 14

Typ.

Max. 17

-20

-28

-40

-10

-11

-12

-13

-16

-19

-22

-25 15 Max.

-82

-81

-79

-77

-74

-70

-66

-65

Unit dBm dBr dBr dBr dB dB dB dB dB dB dB dB ppm Unit dBm dBm dBm dBm dBm dBm dBm dBm dBm Remark Sichuan AI-Link Technology Co.,Ltd. page 6 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 3.3 IEEE 802.11n HT20 Section:

Items Contents TX Characteristics Min. 1) 13dBm Target (For Each antenna port) @ 2.4G 13 17 dBm IEEE802.11n HT20 BPSK, QPSK, 16QAM, 64QAM and OFDM CH1 to CH13 MCS0/1/2/3/4/5/6/7 Max. Typ. Unit Remark Specification Mode Channel Data rate (MCS index) 1. Power Levels 2. Spectrum Mask @ Target Power 1) at fc +/-11MHz 2) at fc +/-20MHz 3) at fc > +/-30MHz 3. Constellation Error(EVM) @ Target Power

-20

-28

-45

-5

-10

-13

-16

-19

-22

-25

-28

-82

-79

-77

-74

-70

-66

-65

-64 dBr dBr dBr dB dB dB dB dB dB dB dB ppm Unit dBm dBm dBm dBm dBm dBm dBm dBm

-15 Min.

Typ. 15 Max.

-20

dBm 1) MCS0 2) MCS1 3) MCS2 4) MCS3 5) MCS4 6) MCS5 7) MCS6 8) MCS7 4. Frequency Error 1) IEEE802.11n HT20 @ 2.4G RX Characteristics 5. Minimum Input Level Sensitivity(each chain) 1) MCS0 (PER 10%) 2) MCS1 (PER 10%) 3) MCS2 (PER 10%) 4) MCS3 (PER 10%) 5) MCS4 (PER 10%) 6) MCS5 (PER 10%) 7) MCS6 (PER 10%) 8) MCS7 (PER 10%) 6. Maximum Input Level (PER 10%) 1) IEEE802.11n HT20 @ 2.4G Sichuan AI-Link Technology Co.,Ltd. page 7 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 4 Warning:

Warning: changes or modifications not expressly approved by the party responsible for compliance could void the users 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. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This Module complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. RF Exposure:

Module statement:

Labelling Instruction for Host Product Integrator Please notice that if the FCC identification number 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. This exterior label can use wording such as the following: Contains FCC ID:

2AOKI-WFR710RTU1 any similar wording that expresses the same meaning may be used. Installation Notice to Host Product Manufacturer The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module. The module is limited to installation in mobile application, a separate approval is required for all other operating configurations, including portable configurations with respect to 2.1093 and difference antenna configurations. Antenna Change Notice to Host manufacturer If you desire to increase antenna gain and either change antenna type or use same antenna type certified, a Class II permissive change application is required to be filed by us, or you (host manufacturer) can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. FCC other Parts, Part 15B Compliance Requirements for Host product manufacturer This modular transmitter is only FCC authorized for the specific rule parts listed on our grant, 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. Sichuan AI-Link Technology Co.,Ltd. page 8 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 The module is a WIFI module. Operation Frequency: 2412-2462MHz 1List of applicable FCC rules FCC Part 15 Subpart C 15.247 & 15.209 2Specific operational use conditions Number of Channel: 11 Modulation:

11b: DBPSK, DQPSK and CCK and DSSS 11g: BPSK, QPSK, 16QAM, 64QAM and OFDM 11n: BPSK, QPSK, 16QAM, 64QAM and OFDM Type: FPC Antenna Gain: 1 dBi Max. The module can be used for mobile or portable applications with a maximum 1dBi 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 information to 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. Not applicable. The module is a Single module and complies with the requirement of FCC Part 15.212. Not applicable. The module has its own antenna, and doesnt need a hosts printed board microstrip trace antenna etc. The module must be installed in the host equipment such that at least 20cm is maintained between the antenna 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. 3Limited module procedures 4Trace antenna designs 5RF exposure considerations 6Antennas Antenna Specification are as follows: Type: FPC Antenna Gain: 1 dBi Sichuan AI-Link Technology Co.,Ltd. page 9 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1 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 internal antenna(s) that has been originally tested and certified with this module. The antenna must be either permanently attached or employa 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.). 7Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID: 2AOKI-WFR710RTU1 with their finished product. 8Information on test modes and additional testing requirements Operation Frequency: 2412-2462MHz Number of Channel: 11 Modulation:

11b: DBPSK, DQPSK and CCK and DSSS 11g: BPSK, QPSK, 16QAM, 64QAM and OFDM 11n: BPSK, QPSK, 16QAM, 64QAM and OFDM 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. 9Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247 & 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. Federal Communication Commission Statement (FCC, U.S.) 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 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. Sichuan AI-Link Technology Co.,Ltd. page 10 of 11 IEEE 802.11 b/g/n 1T1R UART SoC Module WF-R710-RTU1

- Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. FCC Caution:

IMPORTANT NOTES Co-location warning:

OEM integration instructions:

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This device is intended only for OEM integrators 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. As long as the conditions above are met, further transmitter test will not be required. However, the OEM integrator 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.). Validity of using the module certification:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End product labeling:

The final end product must be labeled in a visible area with the following: Contains Transmitter Module FCC ID:

2AOKI-WFR710RTU1. Information that must be placed in the end user manual:

The OEM integrator has to be aware not to provide information to 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. Sichuan AI-Link Technology Co.,Ltd. page 11 of 11

C5266091_X8_Ed.1 Letter of Authorization Company: Sichuan AI-Link Technology Co.,Ltd. Address: Anzhou, Industrial park, Mianyang, Sichuan Product Name: Wireless Module Model Number: WF-R710-RTU1 FCC Identifier: 2AOKI-WFR710RTU1 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: (uxia. Ho. Date: 7021. 7-4 Title:

Signature of applicant: (aiXia- Ha 1/1

O. NS]

eee ee |

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-02-05 Subject: Request for Confidentiality FCC ID: 2AOKI-WFR710RTU1 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFRO.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits ID Label Location Attestation Statement External Photos Block Diagram Schematics Test Re ort Test Setup Photos OTe Fat er I Internal Photos Parts List / Tune Up RF Ex osure Info Operational Description

(Oo (- ae aac) Long-Term . Short-Term Confidentiality ey Noe No No No No No No No i No No SDR Software / Security Info No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See Il. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give. competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 Date:

2H. 2X STR seo Signature:

Name:

Title:

CHAT C5266091_X10_Ed.2

C5266091_X9_Ed.2 Sichuan AI-link Technology Co., Ltd. Modular Transmitter Approval Request Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Company name: Sichuan AI-Link Technology Co., Ltd. FCC ID: 2AOKI-WFR710RTU1 Gentlemen, In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Certification Guide v01r04. FCC ID: 2AOKI-WFR710RTU1has been examined against the following requirements. Items to be covered by Single modular transmitters. Requirement per 15.212 and KDB 996369 D01 Modular Certification Guide v02 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 be on the module assembly 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 3. The module must contain power supply regulation on the module 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) 5. The module must demonstrate compliance in a stand-

alone configuration 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) 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 8. 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) The module has a metal shielded shell. All the radio elements are inside the shielded shall, except for antenna connector. The module has buffered modulation/data inputs. The modular transmitter has its own power supply regulation. The modular transmitter complies with the antenna requirements of Section 15.203 and 15.204(c). The antenna connector is a unique antenna connector. The module was configured independently and meets the requirements. The FCC ID was shown on the modules label: 2AOKI-WFR710RTU1 The operational requirements and instructions how to implement this module are described in the user manual. The module meets the requirements of RF Exposure, See the MPE report. 1/1 C5266091_X9_Ed.2 Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Items to be covered by Split modular transmitters. Requirement per 15.212 and KDB 996369 D01 Modular Certification Guide v02 9. Split modular transmitters must meet all the requirements of a single modular in above item1 and 5 for single modular approval requirements. 10. Only the radio front end must be shielded. The physical crystal and tuning capacitors may be located external to the shielded radio elements. The interface between the split sections of the modular system must be digital with a minimum signaling amplitude of 150 mV peak-to-peak. 11. Control information and other data may be exchanged between the transmitter control elements and radio front end. 12. The sections of a split modular transmitter must be tested installed in a host device(s) similar to that which is representative of the platform(s) intended for use. 13. Manufacturers must ensure that only transmitter control elements and radio front end components that have been approved together are capable of operating together. The transmitter module must not operate unless it has verified that the installed transmitter control elements and radio front end have been authorized together. Manufacturers may use means including, but not limited to, coding in hardware and electronic signatures in software to meet these requirements, and must describe the methods in their application for equipment authorization. A limited modular approval (LMA) may be granted for single or split modular transmitters that comply partially with requirements above. Name:

Title:

Date:

Signature of applicant 1/1