FCC ID: 2A4ZZWIFI-BT WIFI-BT Module

WIFI-BT Module Product Specification VersionA COSMO AIoT Technology Co., Ltd Product typeYIDTUWIFI-BT-XYJ Product number0024000425F COSMO AIoT Technology Co., Ltd Content 1.Revision History .......................................................................... 3 2.General Description ....................................................................... 4 3.Dimension drawing ......................................................................... 4 4.Product Photo ............................................................................ 5 5.Product Specification ..................................................................... 6 5.1 Function Block diagram .................................................................................................................................. 6 5.2 WiFi module specification ............................................................................................................................ 7 5.3 Bluetooth module specification .................................................................................................................. 8 5.4 Pin Configuration and Function ................................................................................................................ 10 6.Packing ................................................................................. 11 COSMO AIoT Technology Co., Ltd Page 2 of 11 1. Revision History Update tag Date Reviser Change Content Document revision 2022.2.19 V1.0 Zhao Lijun Initial version COSMO AIoT Technology Co., Ltd Page 3 of 11 2. General Description YIDTUWIFI-BT-XYJ product is designed base on LB-LINK BL-8188EU1 WIFI module and ITQN RB8762-25 BT module. It includes WiFi BT motherboard, wifi antenna, 8pin signal harness and shell. About wifi function,it supports IEEE802.11i safety protocol, along with IEEE 802.11e standard service quality. It supports the new data encryption on 64/128 bit WEP and safety mechanism on WPA-PSK/WPA2-PSK, WPA/WPA2. About Bluetooth function,it is an ultra-low consumption with intelligent PMU, supports Bluetooth 5 core specification and OTA programming mechanism for firmware upgrade. This module can be used for washing machine or dryer with display module for wireless data transmission and Bluetooth communication. 3. Dimension drawing COSMO AIoT Technology Co., Ltd Page 4 of 11 4.Product Photo COSMO AIoT Technology Co., Ltd Page 5 of 11 5.2 WIFI Module Specification 5.2.1 Electrical and Performance Specification 5.2.2 DC Characteristic COSMO AIoT Technology Co., Ltd Page 7 of 11 5.2.3 RF Characteristic 5.3 Bluetooth Module Specification 5.3.1 Power Consumption COSMO AIoT Technology Co., Ltd Page 8 of 11 5.3.2 RF Characteristics COSMO AIoT Technology Co., Ltd Page 9 of 11 5.4 Pin Configuration and Function Pin Name Description Pin No 1 2 3 4 5 6 7 8 USB_DP USB_DM GND VDD5V RESET NULL UART_RX UART_TX USB differential data line USB differential data line Ground Power supply Hardware reset pin, low active NULL UART signal reception UART signal transmit COSMO AIoT Technology Co., Ltd Page 10 of 11 6.Packing COSMO AIoT Technology Co., Ltd Page 11 of 11 FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi s device may not cause harmful interference, and (2) this device must accept any interference received, incl uding interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursua nt to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inte rference in a residential installation. This equipment generates uses and can radiate radio frequency energy a nd, if not installed and used in accordance with the instructions, may cause harmful interference to radio com munications. 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 turn ing 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 important announcement Important Note:

Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. This device is intended only for OEM integrators under the following conditions:

1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2. The transmitter module may not be co-located with any other transmitter or antenna, 3. For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user regarding to Regulatory Domain change. (if modular only test Channel 1-11) As long as the three conditions above are met, further transmitter testing 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. Important Note:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID 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 FCC ID: 2A4ZZWIFI-BT "

Manual Information to the End User 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 users 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. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installation method in end system. 2.4 Limited module procedures Not applicable 2.5 Trace antenna designs Not applicable 2.6 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 2.7 Antennas This radio transmitter FCCID: 2A4ZZWIFI-BT has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Model Type Connector 2400-2483.5 MHz 2400-2483.5 MHz External Antenna PCB Antenna

2400-2483.5 MHz 4.32dBi 5150-5250 MHz

Peak gain ( dBi ) 5250-5350 MHz

5470-5725 MHz

5725-5850 MHz

4.63dBi

Information 2.8 Label and compliance information The final end product must be labeled in a visible area with the following" Contains FCC ID:2A4ZZWIFI-BT". 2.9 requirements testing Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host. 2.10 Additional testing, Part 15 Subpart B disclaimer Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B. additional modes and test on ISED Statement English: This device complies with Industry Canada licenseexempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, a nd (2) This device must accept any interference, including interference that may cause undesired operation of the device. The digital apparatus complies with Canadian CAN ICES3 (B)/NMB3(B). French: Le prsentappareilestconforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitationestautorise aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareildoit accepter tout brouillageradi olectriquesubi, mmesi le brouillageest susceptible d'encompromettre le fonctionnement. This radio transmitter (ISED certification number: 28257-WIFIBT) has been approved by Industry Canada to operate with the antenna types listed with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Le prsent metteur radio (ISED certification number: 28257-WIFIBT) a t approuv par Industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour l'exploitation de l'metteur. Radiation Exposure Statement This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Dclaration d'exposition aux radiations Cet quipement est conforme Canada limites d'exposition aux radiations dans un environnement non contrl. Cet quipement doit tre install et utilis distance minimum de 20cm entre le radiateur et votre corps. This device is intended only for OEM integrators under the following condition:

The transmitter module may not be co-located with any other transmitter or antenna. As long as the condition above is 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. Cet appareil est conu uniquement pour les intgrateurs OEM dans les conditions suivantes:

Le module metteur peut ne pas tre complant avec un autre metteur ou antenne. Tant que les 1 condition ci-dessus sont remplies, des essais supplmentaires sur l'metteur ne seront pas ncessaires. Toutefois, l'intgrateur OEM est toujours responsable des essais sur son produit final pour toutes exigences de conformit supplmentaires requis pour ce module install. Important Note:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the Canada authorization is no longer considered valid and the IC 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 Canada authorization. Note Importante:

Dans le cas o ces conditions ne peuvent tre satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre metteur), l'autorisation du Canada n'est plus considr comme valide et l' IC ne peut pas tre utilis sur le produit final. Dans ces circonstances, l'intgrateur OEM sera charg de rvaluer le produit final

(y compris l'metteur) et l'obtention d'une autorisation distincte au Canada. End Product Labeling The final end product must be labeled in a visible area with the following: Contains IC: 28257-

WIFIBT. Plaque signaltique du produit final Le produit final doit tre tiquet dans un endroit visible avec l'inscription suivante: Contient des IC: 28257-WIFIBT Manual Information to the End User 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 users 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. Manuel d'information l'utilisateur final L'intgrateur OEM doit tre conscient de ne pas fournir des informations l'utilisateur final quant la faon d'installer ou de supprimer ce module RF dans le manuel de l'utilisateur du produit final qui intgre ce module. Le manuel de l'utilisateur final doit inclure toutes les informations rglementaires requises et avertissements comme indiqu dans ce manuel.

LABEL AND LOCATION

(Size: L3.00cm x 2.00cm) Label Location _____________________________________________________________________________________________________

COSMO AIoT Technology Co., Ltd Agent Authorization Company: COSMO AIoT Technology Co., Ltd Address: Industrial Park, No. 1, Haier Road, Qingdao, Shandong,China Product Name: WIFI-BT Module Trade Mark: N/A Model Number(s): YIDTUWIFI-BT-XYJ FCC ID: 2A4ZZWIFI-BT 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. Date: 2022-03-17 Signature:

Name:

Qiong Yao Title:

Manager Company: COSMO AIoT Technology Co., Ltd

COSMO AIoT Technology Co., Ltd Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:

Subject; Module Approval Request Letter Company name: WIFI-BT Module FCC ID: 2A4ZZWIFI-BT 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: 2A4ZZWIFI-BT 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. Yes Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Yes the module with a shield. The module must contain power supply regulation on the module. The modular has an onboard 3.3V regulator(integrated in SY8089A1AAC). The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The module must demonstrate compliance in a stand-alone configuration. The modular contain a unique antenna connector, and be marketed and operated only with specific antenna(s) of Section 15.204(c),Maximum Antenna Gain is 2dBi. The modular was tested in a standalone configuration apart from host units. The modular has its own FCC ID number. 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. Yes FCC Modular Approval Request Rev 3.0 COSMO AIoT Technology Co., Ltd The module must comply with RF exposure requirements Yes, RF cexposure evaluation performed at 20cm. 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;

User Manual Page Number KDB reference Ref Sect Page 12 2.2 Page 12 2.3 Page 12 2.4 Page 12 2.5 Page 12 2.6 Page 12 2.7 Page 12 2.8 Page 12 2.9 List of applicable FCC rules Summarize the specific operational use conditions Limited module procedures Trace antenna designs RF exposure considerations Antennas Label and compliance information Information on test modes and additional testing requirements Additional testing, Part 15 Subpart B disclaimer Requirements of KDB 996369 D03 Page 12 2.10 Name: Qiong Yao Title: Manager Date: 2022-03-17 Signature of applicant FCC Modular Approval Request Rev 3.0

COSMO AIoT Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-03-17 Subject; Request for Confidentiality FCC ID: 2A4ZZWIFI-BT To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description BOM Software Security Requirements External Photos Test Setup Photos Internal Photos User Manual In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name / Title: Qiong Yao / Manager Company: COSMO AIoT Technology Co., Ltd Address: Industrial Park, No. 1, Haier Road, Qingdao, Shandong,China Phone: 18801021325 Fax:/

E-Mail: yaoq.cz@haier.com

COSMO AIoT Technology Co., Ltd WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2A4ZZWIFI-BT Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-

location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code

(MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: Qiong Yao / Manager Signature:

Phone: 18801021325 Email: yaoq.cz@haier.com Date: 2022-03-17 Page 1 of 1 Rev.2.0