FCC ID: 2AOKI-WFM68AUWF1 WiFi Module

AI-Link WF-M68A-UWF1 WiFi Module Features Reserving System IEEE Std. 802.11b IEEE Std. 802.11g IEEE Std. 802.11n IEEE Std. 802.11a IEEE Std. 802.11ac Bluetooth 2.1+EDR,4.2 LE,5.0 Chip Solution MT7668AUN Band 2.4G+5 G Model Overview Model Standard Rate Channel POWER WF-M68A-UWF1 IEEE 802.11a/b/g/n/ac 866.7Mbps 2.4G/5G 5V Bluetooth 5.0 3Mbps 2.4G Sichuan AI-Link Technology Co.,Ltd Add: Anzhou,Industrial park,Mianyang,Sichuan,China Fax : +86-0816-2416943 http://www.changhong.com Sichuan AI-Link Technology Co., Ltd. page 1 of 9 1. Introduction WF-M68A-UWF1 is based on MT7668AUN,complied with IEEE 802.11ab/g/n/ac dual-band WIFI subsystem and a Bluetooth subsystem.. 1.1 RF module Overview The general HW architecture for the module is shown in Figure 1. This WLAN Module design is based on MTK MT7668AUN. It is a highly integrated single-chip MIMO(Multiple In Multiple Out) Wireless LAN

(WLAN) USB2.0 network interface controllercomplying with the 802.11n specification. It combines a MAC, a 2T2R capable baseband,and RF in a single chip. The MT7668 provides a complete solution for a highthroughput performance wireless client.The Bluetooth subsystem contains the Bluetooth radio,baseband,link controller.It also uses the 32-bit RISC MCU for the Bluetooth protocols. Figure 1 WF-M68A-UWF1 Block Diagram 1.2 Specification reference This specification is based on additional references listed below. _ IEEE Std. 802.11b _ IEEE Std. 802.11g _ IEEE Std. 802.11n _ IEEE Std. 802.11a _ IEEE Std. 802.11ac 1.3 System Functions Table1: General Specification as below:

Standard Interface ANT Modulation IEEE 802.11 b/a/ac/g/n Bluetooth 2.1+EDR,4.2 LE,5.0 USB 2.0 2T2R 802.11b:DBPSK,DQPSK,CCK for DSSS 802.11a/g:BPSK,QPSK,16QAM,64QAM for OFDM 802.11n:BPSK,QPSK,16QAM,64QAM for OFDM 802.11ac:BPSK, QPSK, 16QAM, 64QAM ,256QAM for OFDM BT:

FHSS/GFSK/DQPSK/8DPSK Sichuan AI-Link Technology Co., Ltd. page 2 of 9 Operating Frequency TX Power 2.400 ~ 2.4835 GHz,5.150~5.350 GHz,5.470~5.725 GHz,5.725~5.850 GHz,5.850~5.925 GHz WiFi:

11b: 17 +/- 1.5dBm (11Mbps) 11g: 15 +/- 1.5dBm (54Mbps) 11a: 15 +/- 1.5dBm (54Mbps) 11n: 15 +/- 1.5dBm (MCS7 HT20) 11n: 15 +/- 1.5dBm (MCS7 HT40) 11ac: 13 +/- 1.5dBm (MCS9 HT20) 11ac: 13 +/- 1.5dBm (MCS9 HT40) BT:

DH5,Class 1(5dBm Typical) Frequency offset

+-15PPM EVM 11b @ 11Mbps: (Max.) : 35%, (Typical) : 6%

11a/g @ 54Mbps: (Max.) : -25dB , (Typical) : -30dB 11n @ MCS7 (2.4G/5.8GHT20): (Max.) : -28dB, (Typical) : -32dB 11n @ MCS7 (2.4G/5.8G HT40): (Max.) : -28dB, (Typical) : -32dB RX Sensitivity Channel Operation Voltage Power consumption WiFi:

11b @ 11Mbps: (Max.) : -85dBm , (Typical) : -86dBm (PER<8%) 11g @ 54Mbps: (Max.) : -65dBm , (Typical) : -73dBm (PER<10%) 11n @ MCS7 (2.4G/5.8G HT20): (Max.) : -64dBm , (Typical) : -71dBm

(PER<10%) 11n @ MCS7 (2.4G/5.8G HT40): (Max.) : -61dBm , (Typical) : -68dBm

(PER<10%) BT:

GFSK: typical -93dBm

/4 DQPSK: typical -93dBm 8DPSK: typical -87dBm

-97 dBm(BLE) 2.4GHzCH1-CH13 5.8GHzCH36-CH165 5V+/-5%

WIFI BT Sichuan AI-Link Technology Co., Ltd. page 3 of 9 2.4G g 2 2dBi5G gain 2dbi

-10 to +70

-40 to +125 JUI7.820.0536 -2 customer_package_UIv1.88_DLLv3.87_20170918_WinDriverV.0.0.4.31_F Wv.69237 ANT Operation Temperature Storage Temperature Hardware version Software version Sichuan AI-Link Technology Co., Ltd. page 4 of 9 2. Mechanical Specification Typical Dimension (W x L x T): 70mmx 33mm x6.0mm (tolerance : +/-0.2 mm) PCB Thickness: 1.0mm Sichuan AI-Link Technology Co., Ltd. page 5 of 9 NO 1 2 3 4 5 6 7 8 9 10 11 12 Defintion VCC VCC VCC GND GND DN DP GND GND RST WIFI_WAKE BT_WAKE NOTE Power supply Power supply Power supply GND`

GND USB D-

USB D+

GND GND RESET WIFI_WAKE BT_WAKE 3. Product Picture 12 1 Top view Bottom view Sichuan AI-Link Technology Co., Ltd. page 6 of 9 Noet: No marked size tolerance: 0.2mm 7Statement ACE Radiation Exposure Statement Sichuan AI-Link Technology Co.,Ltd. Herby, declares that this WiFi Module, WF-M68A-UWF1 is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. In accordance with Article 10(2) and Article 10(10), this product allowed to be used in all EU member states. Use the WIFI Module in the environment with the temperature between -10 and 70 This device is restricted to indoor use where operated in the European Community using frequency in 5150-5350MHz, 5470-5725MHz, 5745-5825MHz to reduce the potential for interference. Operation Frequency:

For BT/BLE:2402MHz~2480MHz For 2.4G WIFI:

2412MHz~2472MHz (802.11b/802.11g/802.11n(HT20)) 2422MHz~2462MHz (802.11n(HT40)) For 5G WIFI:

5150MHz-5350MHz, 5470MHz-5725MHz, 5745MHz-5825MHz Max output power: 2.4G WIFI: 0.0551W 5G Wifi: 0.0586W 5.8G Wifi: 0.0176W BT:0.0039W BLE: 0.0032W Manufacturer: Sichuan AI-Link Technology Co., Ltd. Address: Anzhou, Industrial park, Mianyang, Sichuan, China Tel: +86-0816-2416943 Fax: +86- 0816-2438701 E-mail: caixia.hu@changhong.com BFCC Radiation Exposure Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 and FCC CFR Title 47 Part 15 E Section 15.407: 2016 PCB antenna (BT/BLE)with Gain: 2dBi, Internal antenna(2.4G WIFI/5G WIFI/5.8G WIFI) with 2.4G Wifi gain 2dBi, and 5G Wifi gain 2dBi and 5.8G Wifi gain 2dBi Subpart Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. If power exceeds the limit and the distance( Over 20cm distance in actual use between the device and user) is compliant with the requirement. Sichuan AI-Link Technology Co., Ltd. page 7 of 9 Notice to OEM integrator 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. The end product shall haves the words Contains Transmitter Module FCC ID: 2AOKI-WFM68AUWF1. The device must be professionally installed. The intended use is generally not for the general public. It is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is not normally required. The user has no access to the connector. Installation must be controlled. Installation requires special training. Any company of the host device which installs this modular with unlimited modular approval should perform the test of radiated & conducted emission and spurious emission, etc. according to FCC part 15C: 15.247 and 15.407and 15.209

& 15.207, 15B Class B requirement, only if the tests result comply with FCC part 15C: 15.247 and 15.407 and 15.209 &

15.207, 15B Class B requirement, then the host can be sole legally When the module is installed inside another device, the user manual of the hose contain below warning statement:

1) This device may not cause harmful interference. 2) This device must accept any interference received, including interference that may cause undesired operation. CIC Radiation Exposure Statement Sichuan AI-Link Technology Co., Ltd. page 8 of 9 Sichuan AI-Link Technology Co., Ltd. page 9 of 9

Label Artwork and Location Model: WF-M68A-UWF1 Label:

Size: L*W=22*22mm Location

Sichuan AI-Link Technology Co., Ltd. Agent Authorization Company: Sichuan AI-Link Technology Co., Ltd. Address: Anzhou, Industrial park, Mianyang, Sichuan 622650, China Product Name: WiFi Module Model Number(s): WF-M68A-UWF1 Product Description: WiFi Module supports Wifi, Bluetooth, DFS function We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Name:

Title:

Caixia Hu Engineer Company: Sichuan AI-Link Technology Co., Ltd. Date: 2019-12-11

FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 and FCC CFR Title 47 Part 15 Subpart E Section 15.407: 2016 BT/BLE: PCB Antenna 2.4G Wifi/5G Wifi: Internal antenna YES N/A Yes YES Antenna Type:

Refer to instruction Comment Refer to instruction Compliance list INTEGRATION INSTRUCTIONS for 996369 D03 OEM the and 996369 D03 OEM by Sections 2.2 through 2.10. Requirement 2.2 List of applicable FCC rules List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional-radiator rules

(Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host manufacturers that further testing is required.3 2.3 Summarize the specific operational use conditions Describe use conditions that are applicable to the modular transmitter, including for example any limits on antennas, etc. For example, if point-to-point antennas are used that require reduction in power or compensation for cable loss, then this information must be in the instructions. If the use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band and minimum gain, specifically for master devices in 5 GHz DFS bands. 2.4 Limited module procedures If a modular transmitter is approved as a limited module, then the module manufacturer is responsible for approving the host environment that the limited module is used with. The manufacturer of a limited module must describe, both in the filing and in the installation instructions, the alternative means that the limited module manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting conditions. A limited module manufacturer has the flexibility to define its alternative method to address the conditions that limit the initial approval, such as: shielding, minimum Antenna Gain:

BT/BLE: 2dBi 2.4G Wifi/5G Wifi: 2dBi Antenna Gain:

BT/BLE: 2dBi 2.4G Wifi/5G Wifi: 2dBi Refer to instruction Antenna Type:

No BT/BLE: PCB Antenna 2.4G Wifi/5G Wifi: Internal antenna signaling amplitude, buffered modulation/data inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval. This limited module procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured. For additional hosts other than the specific host originally granted with a limited module, a Class II permissive change is required on the module grant to register the additional host as a specific host also approved with the module. 2.5 Trace antenna designs For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ Modules for Micro-Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements.4 a) Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna);

b) Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered);

c) The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout;

d) Appropriate parts by manufacturer and specifications;

e) Test procedures for design verification; and No Refer to instruction Antenna Type:

BT/BLE: PCB Antenna 2.4G Wifi/5G Wifi: Internal antenna Antenna Gain:

BT/BLE: 2dBi 2.4G Wifi/5G Wifi: 2dBi f) Production test procedures for The module grantee shall provide a ensuring compliance. notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. 2.6 RF exposure considerations It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable xx cm from a persons body); and (2) additional text needed for the host product manufacturer to provide to end users in their end-product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application). 2.7 Antennas A list of antennas included in the application for certification must be provided in the instructions. For modular transmitters approved as limited modules, all applicable professional installer instructions must be included as part of the information to the host product manufacturer. The antenna list shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that for example an omni-directional antenna is not considered to be a specific antenna type)). For situations where the host product manufacturer is responsible for an external connector, for example with an RF pin and antenna trace design, the integration YES YES Refer to instruction The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device. This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. Refer to instruction Antenna Type:

BT/BLE: PCB Antenna 2.4G Wifi/5G Wifi: Internal antenna Antenna Gain:

BT/BLE: 2dBi 2.4G Wifi/5G Wifi: 2dBi instructions shall inform the installer that unique antenna connector must be used on the Part 15 authorized transmitters used in the host product. The module manufacturers shall provide a list of acceptable unique connectors. 2.8 Label and compliance information Grantees are responsible for the continued compliance of their modules to the FCC rules. This includes advising host product manufacturers that they need to provide a physical or e-label stating Contains FCC ID with their finished product. See Guidelines for Labeling and User Information for RF Devices KDB Publication 784748. 2.9 Information on test modes and additional testing requirements5 Additional guidance for testing host products is given in KDB Publication 996369 D04 Module Integration Guide. Test modes should take into consideration different operational conditions for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. The grantee should provide information on how to configure test modes for host product evaluation for different operational conditions for a stand-alone modular transmitter in a host, versus with multiple, simultaneously transmitting modules or other transmitters in a host. Grantees can increase the utility of their modular transmitters by providing special means, modes, or instructions that simulates or characterizes a connection by enabling a transmitter. This can greatly simplify a host manufacturers determination that a module as installed in a host complies with FCC requirements. 2.10 Additional testing, Part 15 Subpart B disclaimer The grantee should include a statement that the modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC YES YES Refer to instruction 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 Transmitter Module FCC ID:

2AOKI-WFM68AUWF1 Or Contains FCC ID:

2AOKI-WFM68AUWF1 Refer to instruction Any company of the host device which installs this modular with unlimited modular approval should perform the test of radiated & conducted emission and spurious emission, etc. according to FCC part 15C: 15.247 and 15.407and 15.209 &

15.207, 15B Class B requirement, only if the tests result comply with FCC part 15C:

15.247 and 15.407 and 15.209 & 15.207, 15B Class B requirement, then the host can be sole legally No Refer to instruction Any company of the host device which installs this modular with unlimited modular approval should perform the test transmitter rules) listed on the grant, 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.6 of radiated & conducted emission and spurious emission, etc. according to FCC part 15C: 15.247 and 15.407and 15.209 &

15.207, 15B Class B requirement, only if the tests result comply with FCC part 15C:

15.247 and 15.407 and 15.209 & 15.207, 15B Class B requirement, then the host can be sole legally When the module is installed inside another device, the user manual of the host must contain below warning statements;

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.

Sichuan AI-Link Technology Co., Ltd. Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2019-12-10 Subject: Modular Transmitter Application Company name: Sichuan AI-Link Technology Co., Ltd. FCC ID: 2AOKI-WFM68AUWF1 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: 2AOKI-WFM68AUWF1 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. Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) The modular have RF own shielding The modular transmitter have buffered modulation/data inputs The modular transmitter have its own power supply regulation. 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. Device is equipped with one PCB antenna and two internal antennas The module 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 The FCC identification number can put on the modular with either a permanently affixed label The instructions will be provided and apply to a complete transmitter and comply with specific rule. The total power density of modular transmitter final configuration comply with FCC RF Exposure FCC Modular Approval Request Rev 3.0 Sichuan AI-Link 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. Summary of requirements and Checklist.Refer to the KDB for description of the complete requirements;

KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference Page 7 Page 4 Not compliance Not compliance Page 7,8 Page 4 Page 8 Page 8 Page 8 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 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 Name: Caixia Hu Title: Engineer Date: 2019-12-10 Signature of applicant FCC Modular Approval Request Rev 3.0

Sichuan AI-Link Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Long Term Confidentiality FCC ID: 2AOKI-WFM68AUWF1 Date: 2019.12.11 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 Parts List Operational Description Software security requirement 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: Caixi Hu Title: Engineer

Sichuan AI-Link Technology Co., Ltd. FCC Software Configuration Control Declaration Date: Dec.11, 2019 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Product: WiFi Module Model No.: WF-M68A-UWF1 Regarding FCC Country Code Selection guidelines identified in KDB 594280. All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Name: Caixia Hu Date: Dec. 11, 2019 Signature of applicant