FCC ID: 2AC23-WXT2F WIFI+BT Module

Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 Host Integration Guide FCC ID: 2AC23-WXT2F IC: 12290A-WXT2F The module is not intended for general public and integrators. It is generally for industry/commercial use and must be professionally installed. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is not normally required. Installation must be controlled and requires special training. According to KDB996369 D03 2.0 INTEGRATION INSTRUCTIONS(2.2-2.7) 2.2 This module has been assessed against the following FCC rule parts: CFR 47 FCC Part 15 C (15.247, DTS and DSS) and CFR 47 FCC Part 15 E (NII). It is applicable to the modular transmitter 2.3 About the Antenna:

1.Antenna type is a PIFA with no more than 3.1 dBi gain at 2.4 GHz, 4.17 dBi gain at 5GHz and 4.7 dBi at 6GHz. 2.Should be installed so that the end user cannot modify the antenna. 3.Feed line should be designed in 50ohm Fine tuning of return loss etc. can be performed using a matching network. The antenna shall not be accessible for modification or change by the end user. Commented [HD1]: 2.2 The module complies with FCC Part 15.247 / Part 15.407 and apply for Single module approval. Commented [HD2]: 2.4 Not applicable 2.4 2.5 Trace antenna designs: Not applicable. 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 2.7 2.8 2.9 Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 The module is limited to installation in mobile application. Host device must be operated a minimum of 20cm between people. Here are two types of instruction for RF exposure:

1;The host product which the module installed shall be mobile application. 2; The end user manual shall be provide additional text from the host product manusfacturer to end users, It shall include FCC compliance statements related to the transmitter or labeling requirements.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). A separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and difference antenna configurations. About the Antenna:

Antenna type is a PIFA with no more than 3.1 dBi gain at 2.4 GHz, 4.17 dBi gain at 5GHz and 4.7 dBi at 6GHz. Please notice that if the FCC identification number is not visible when the module is installed inside the host 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 shall use the wording: Contains FCC ID: 2AC23-

WXT2F Please notice that if the ISED Canada certification number is not visible when the module is installed inside the host 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 c hall use the wording: Contains IC: 12290A-

WXT2F Testing of the host product with all the transmitters installed referred to as the composite investigation test- is recommended, to verify that the host product meets all the applicable FCC rules. The radio spectrum is to be investigated with all the transmitters in the final host product functioning to determine that no emissions exceed the highest limit permitted for any one individual transmitter as required by Section 2.947(f). The host manufacturer is responsible to ensure that when their product operates as intended it does not have any emissions present that are out of compliance that were not present when the transmitters were tested individually. If the modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to re -test all the available transmitter modes or settings. It is recommended that the host produc t manufacturer, installing 2.10 Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 the modular transmitter, perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions). The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. Any company of the host device which install this modular should perform the test of radiated & condicted emission and spurious emission etc. according to FCC Part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement, only if the test result comply with FCC part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement. Then the host can be sold legally. 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. A separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and difference antenna configurations. The module is limited to OEM installation only. The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module. Must use the device only in host devices that meet the FCC/ISED RF exposure category of mobile, which means the device is installed and used at distances of at least 20 cm from persons. The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as show in this manual. 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, ICES 003. Any company of the host device which install this modular should perform the test of radiated & condicted emission and spurious emission etc. according to FCC Part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement, only if the test result comply with FCC part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement. Then the host can be sold legally. 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. This modular transmitter is only FCC authorized for the specific rule parts (47CFR Part 15.247 and 15.407) listed on the grant, and that the host product manufacturer is responsible for Commented [HD3]: 2.10 Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host. The use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. 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. Refer to the minimum antenna gain requirements and antenna type (PIFA) that are approved for use with this module detailed in the previous sections. Use of other antennas will require additional certification procedures for the host system with FCC and ISED Canada. This equipment complies with FCC and ISED-Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed in host systems that are installed and operated with a minimum distance of 20cm between the radiator & people. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter except as permitted by FCC and ISED-Canada multie-transmitetr rules. Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 The module is limited to installation in mobile application. For a normal application, for example, A television, host systems that are installed and operated with a minimum distance of 20cm between the radiator & people. If the end-user really needed to install in host systems that are installed and operated with a distance less than 20cm between the radiator & people, for example, a cell phone or laptop, the host systems need to comply with the requirements in KDB 996369 D03 OEM Manual v01 and KDB 996369 D04 Module Integration Guide v02. The module is not intended for general public, it must be professionally installed. The typical application for the module:

Television Monitor For other devices,A especial driver was need to be installed to the host before start normal use for the module, and it is different for difference kind of host. Please contact us for more detail before installed to a host. Here is a general guide to determine RF exposure compliance:

For more information, please refer to the in KDB 996369 D03 OEM Manual v01 and KDB 996369 D04 Module Integration Guide v02. Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as shown in below in addition to any other relevant statements or labeling requirements from e.g FCC Part 15 or the Canadian ICES standards. 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 device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. To ensure compliance with FCC and ISED RF exposure requirements this device must be installed to provide a minimum of 20cm between the device and people. The device for operation in the band 51505250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host according to FCC Part 15.247, RSS-247, RSS-248 and FCC part 15 E. This modular transmitter is only FCC authorized for the specific rule parts (47CFR Part 15.247 and 15.407) 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 such as ICES-003 and FCC Part 15 B. The use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. 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. Company Name: Hui Zhou Gaoshengda Technology Co.,LTD Contact Name: Hui Guan Title of PersonManager Address: NO.75 Zhongkai Development Area ,Huizhou, Guangdong, China Date: 4/22/2022

Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 WIFI+BT Module IEEE 802.11 a/b/g/n/ac/ax 2T/2R Model Number: WXT2FM2511 Product Descrition The WXT2FM2511 is a complete 2.4GHz/5GHz/6GHz WIFI 22 MIMO module. This module provides a high level of integration with a dual-stream IEEE 802.11ax MAC/ base band /radio and Bluetooth 5.2.The WLAN operation supports 20MHz,40MHz and 80MHz channels for data rates up to 1201Mbps. It fully complies with IEEE 802.11 a/b/g/n/ac/ax feature rich wireless connectivity at high standards,delivers reliable,cost-effective, throughput from an extended distance. Product Features Bluetooth v5.2 Two transmit and Two receive path(2T2R) Works with all existing network nfrastructure. Capable of up to 128-Bit WEP Encryption. Freedom to roam while staying connected. UP to 1201 Mbps High-Speed Transfer Rate in 802.11ax mode of operation. Operating SystemsLinux, Win10, Win11. Low power consumption. Easy to install and configure. High speed usd 2.0 interface. Product Specification ROHS compliant Model Complies with IEEE 802.11b/g/n/ax for 2.4GHzIEEE 802.11a/n/ac/ax for 5GHzIEEE 802.11ax for 6GHz Wireless LAN. WIF+BT Module Product Name WXT2FM2511 Standard Interface 802.11 a/b/g/n/ac/ax USB Data Transfer Rate 1,2,5.5,6,11,12,18,22,24,30,36,48,54,60,90,120 and maximum of 1201Mbps Modulation Method Frequency Band GFSK,/4-DQPSK,8DPSK(bluetooth) DQPSK,DBPSK,CCK(802.11b) QPSK,BPSK,16QAM,64QAM with OFDM (802.11g) QPSK,BPSK,16QAM,64QAM with OFDM (802.11n) QPSK,BPSK,16QAM,64QAM with OFDM (802.11a) QPSK,BPSK,16QAM,64QAM,256QAM with OFDM (802.11ac) QPSK,BPSK,16QAM,64QAM,256QAM,1024QAM with OFDMA (802.11ax) BLUETOOTH 2402~2480 MHz WIFI 2.4G: 2412~2462 MHz 5G: 5150~5350MHz, 5470~5725MHz5725~5850MHz 6G: 5925~7125MHz Infrastructure Operation Mode Security WEP, TKIP, AES, WPA, WPA2 Operating Voltage 5V10%

Current Consumption 1000mA Antenna Type PIFA Operating Temperature 0 ~ 70C ambient temperature Storage Temperature

-40 ~ 80C ambient temperature Humidity 5 to 95 % maximum (non-condensing) PAGE 1 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 NOTICE:

please keep this product and accessories attached to the places which children can't touch;

do not splash water or other liquid onto this product, otherwise it may cause damage;

do not put this product near the heat source or direct sunlight, otherwise it may cause deformation or malfunction;

please keep this product away from flammable or naked flame;

please do not repair this product by yourself. Only qualified personnel can be repaired. FCC Statement 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 equipment 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 users authority to operate the equipment. The module is limited to OEM installation ONLY. The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module. 2.6 The module is limited to installation in mobile application. Host device must be operated a minimum of 20cm between people. Here are two types of instruction for RF exposure:

1;The host product which the module installed shall be mobile application. 2; The end user manual shall be provide additional text from the host product manusfacturer to end users, It shall include FCC compliance statements related to the transmitter or labeling requirements.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). A separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and difference antenna configurations. 2.4 The module complies with FCC Part 15.247 / Part 15.407 and apply for Single module approval. 2.5 Trace antenna designs: Not applicable. 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. PAGE 2 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 This equipment 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 & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 1. FCC regulations restrict the operation of this device to indoor use only. 2. The operation of this device is prohibited on oil platforms, cars, trains, boats, and aircraft, except that operation of this device is permitted in large aircraft while flying above 10,000 feet. 3. Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems. 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. 2.2 This module has been assessed against the following FCC rule parts: CFR 47 FCC Part 15 C (15.247, DTS and DSS) and CFR 47 FCC Part 15 E (NII). It is applicable to the modular transmitter The concrete contents to check are the following three points. 2.3 1.Antenna type is a PIFA with no more than 2 dBi gain at 2.4 GHz, 3 dBi gain at 5GHz and 4 dBi at 6GHz. 2.Should be installed so that the end user cannot modify the antenna 3.Feed line should be designed in 50ohm Fine tuning of return loss etc. can be performed using a matching network. The antenna shall not be accessible for modification or change by the end user. Le contenu concret vrifier sont les trois points suivants. 1. Une des trois antennes suivantes doit tre utilise. 2. doivent tre installs de faon que l'utilisateur final ne peut pas modifier l'antenne 3. La ligne dalimentation doit tre conue en 50ohm Le rglage prcis de la perte de rendement, etc. peut tre effectu en utilisant un rseau correspondant. PAGE 3 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 2.7 Antennas:

BLE BT 2.4G wifi 5G wifi Wifi 6E 1 1 1 2 1 2 1 2 Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2402-2480 PCB Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2402-2480 PCB Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2412-2462 2412-2462 PCB PCB 3.1 3.1 Antenna No. Frequency Band Antenna Type Max Antenna Gain (dBi) Antenna No. Frequency Band Antenna Type Max Antenna Gain (dBi) 5180 ~ 5825 5180 ~ 5825 5925 ~ 7125 5925 ~ 7125 PCB PCB PCB PCB 1 1 4.17 4.17 4.7 4.7 Canada Statement This radio transmitter 12290A-WXT2F has been approved by Innovation, Science and Economic Development Canada 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. Le prsent metteur radio 12290A-WXT2F a t approuv par Innovation, Sciences et Dveloppement conomique 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 pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'metteur. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the PAGE 4 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 device. Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

1. Lappareil ne doit pas produire de brouillage;

2. Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems Les dispositifs fonctionnant dans la bande 5150-5250 MHz sont rservs uniquement pour une utilisation lintrieur afin de rduire les risques de brouillage prjudiciable aux systmes de satellites mobiles utilisant les mmes canaux;

The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance. Le dispositif rencontre l'exemption des limites courantes d'valuation dans la section 2.5 de RSS 102 etla conformit l'exposition de RSS-102 RF, utilisateurs peut obtenir l'information canadienne surl'exposition et la conformit de rf. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body. Cet metteur ne doit pas tre Co-plac ou ne fonctionnant en mme temps qu'aucune autre antenne oumetteur. Cet quipement devrait tre install et actionn avec une distance minimum de 20 centimtres entre le radiateur et votre corps. This radio transmitter IC : 12290A-WXT2F has been approved by FCC and by Innovation, Science and Economic Development Canada 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. Le prsent metteur radio 12290A-WXT2F a t approuv par Innovation, Sciences et Dveloppement conomique 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 pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'metteur. PAGE 5 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 The concrete contents to check are the following three points. 1.Antenna type is a PIFA with no more than 3.1 dBi gain at 2.4 GHz, 4.17 dBi gain at 5GHz and 4.7 dBi at 6GHz. 2.Should be installed so that the end user cannot modify the antenna 3.Feed line should be designed in 50ohm Fine tuning of return loss etc. can be performed using a matching network. The antenna shall not be accessible for modification or change by the end user. Le contenu concret vrifier sont les trois points suivants. 1. Le type d'antenne est pifa avec un gain ne dpassant pas 3.1 DBI 2,4 GHz, 4.17 DBI 5 GHz et 4.7 DBI 6 GHz. 2.doivent tre installs de faon que l'utilisateur final ne peut pas modifier l'antenne 3.La ligne dalimentation doit tre conue en 50ohm Le rglage prcis de la perte de rendement, etc. peut tre effectu en utilisant un rseau correspondant. Antennas:

BLE Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2402-2480 PCB Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2402-2480 PCB Antenna Frequency (MHz) Antenna Type MAX Antenna Gain (dBi) 2412-2462 2412-2462 PCB PCB 3.1 3.1 Antenna No. Frequency Band Antenna Type Max Antenna Gain (dBi) Antenna No. Frequency Band Antenna Type Max Antenna Gain (dBi) 5180 ~ 5825 5180 ~ 5825 5925 ~ 7125 5925 ~ 7125 PCB PCB PCB PCB 1 1 4.17 4.17 4.7 4.7 BT 2.4G wifi 5G wifi Wifi 6E 1 1 1 2 1 2 1 2 PAGE 6 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 Notice to OEM integrator Must use the device only in host devices that meet the FCC/ISED RF exposure category of mobile, which means the device is installed and used at distances of at least 20 cm from persons. The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as show in this manual. 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, ICES 003. 2.10 Any company of the host device which install this modular should perform the test of radiated & condicted emission and spurious emission etc. according to FCC Part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement, only if the test result comply with FCC part 15C: 15.247 and 15.209 & 15.207, 15B class B requirement. Then the host can be sold legally. 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. 2.9 Testing of the host product with all the transmitters installed referred to as the composite investigation test- is recommended, to verify that the host product meets all the applicable FCC rules. The radio spectrum is to be investigated with all the transmitters in the final host product functioning to determine that no emissions exceed the highest limit permitted for any one individual transmitter as required by Section 2.947(f). The host manufacturer is responsible to ensure that when their product operates as intended it does not have any emissions present that are out of compliance that were not present when the transmitters were tested individually. If the modular transmitter has been fully tested by the module grantee on the required number of channels, modulation types, and modes, it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer, installing the modular transmitter, perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g., where a different antenna may be causing additional emissions). The testing should check for emissions that may occur due to the intermixing of emissions with the other transmitters, digital circuitry, or due to physical properties of the host product (enclosure). This investigation is especially important when integrating multiple modular transmitters where the certification is based on testing each of them in a stand-alone configuration. This modular transmitter is only FCC authorized for the specific rule parts ( 47CFR Part 15.247 and 15.407) 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. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host. The use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. 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. 2.8 Please notice that if the FCC identification number is not visible when the module is installed inside the host 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 shall use the wording: Contains FCC ID: 2AC23-WXT2F Please notice that if the ISED Canada certification number is not visible when the module is installed inside the host device 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 c hall use the wording: Contains IC: 12290A-WXT2F Refer to the minimum antenna gain requirements and antenna type (PIFA) that are approved for use with this module detailed in the previous sections. Use of other antennas will require additional certification procedures for the host system with FCC and ISED Canada. PAGE 7 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 This equipment complies with FCC and ISED-Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed in host systems that are installed and operated with a minimum distance of 20cm between the radiator & people. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter except as permitted by FCC and ISED-Canada multie-transmitetr rules. The module is limited to installation in mobile application. For a normal application, for example, A television, host systems that are installed and operated with a minimum distance of 20cm between the radiator & people. If the end-user really needed to install in host systems that are installed and operated with a distance less than 20cm between the radiator & people, for example, a cell phone or laptop, the host systems need to comply with the requirements in KDB 996369 D03 OEM Manual v01 and KDB 996369 D04 Module Integration Guide v02. The module is not intended for general public, it must be professionally installed. The typical application for the module:

Television Monitor For other devices,A especial driver was need to be installed to the host before start normal use for the module, and it is different for difference kind of host. Please contact us for more detail before installed to a host. PAGE 8 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 Here is a general guide to determine RF exposure compliance:

PAGE 9 OF 4 Version 1.0 Hui Zhou Gaoshengda Technology Co., LTD WXT2FM2511 The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as shown below in addition to any other relevant statements or labeling requirements from e.g FCC Part 15 or the Canadian ICES standards. 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 device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

1. Lappareil ne doit pas produire de brouillage;

2. Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. To ensure compliance with FCC and ISED RF exposure requirements this device must be installed to provide a minimum of 20cm between the device and people. Pour garantir la conformit aux exigences d'exposition RF de la FCC et d'ISED Canada, cet appareil doit tre install de manire laisser un minimum de 20 cm entre l'appareil et les personnes. The device for operation in the band 51505250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems Les dispositifs fonctionnant dans la bande de 5 150 5 250 MHz sont rservs uniquement pour une utilisation lintrieur afin de rduire les risques de brouillage prjudiciable aux systmes de satellites mobiles utilisant les mmes canaux. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host according to FCC Part 15.247, RSS-247, RSS-248 and FCC part 15 E. This modular transmitter is only FCC authorized for the specific rule parts ( 47CFR Part 15.247 and 15.407) 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 such as ICES-003 and FCC Part 15 B. The use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturers instruction manual. 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. PAGE 10 OF 4 Version 1.0

Hui Zhou Gaoshengda Technology Co.,LTD Agent Authorization Company: Hui Zhou Gaoshengda Technology Co.,LTD Address: NO.75 Zhongkai Development Area, Huizhou, Guangdong, China Product Name: WIFI+BT Module Model Number(s): WXT2FM2511 Product Description: WIFI+BT Module 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:

Date: 2022-04-18 Name:

Hui Guan Title:

Manger Company: Hui Zhou Gaoshengda Technology Co.,LTD

GSO Hui Zhou Gaoshengda Technology Co., LTD WXT2AM2101 We, Hui Zhou Gaoshengda Technology Co., LTD The product: WIFI+BT Module And modal No - \AIXTIEMIE14 FCC ID: 2AC23-WXT2F IC: 12290A-WXT2F We declare that the module will only be sold to host integrators and not made available to the general public market. echnology Co.,LTD Title of Person: Manager Address: NO.75 Zhongkai Development Area ,Huizhou, Guangdong, China Date: 04/22/2022 WXT2FM2511

Hui Zhou Gaoshengda Technology Co.,LTD Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-04-18 Subject; Modular Transmitter Application Company name: Hui Zhou Gaoshengda Technology Co.,LTD FCC ID: 2AC23-WXT2F 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 2AC23-WXT2F has been examined against the following requirements. Items to be covered 1. The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 2. The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. 3. The modular transmitter must have its own power supply regulation. 4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. FCC Modular Approval Request Rev 3.0 Answer From Applicant Yes, the radio elements must have the radio frequency circuitry shielded. Yes. The module has buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. Yes. The module contains power supply regulation on the module Yes. Device contain a permanently attached antenna(PCB antenna) Hui Zhou Gaoshengda Technology Co.,LTD 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see 15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available

(see 15.31(i)). 6. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. Yes. The demonstrates compliance in a stand-alone configuration Yes. The module is labelled with its permanently affixed FCC ID label.

(A) If using a permanently affixed label, the modular transmitter must be labeled with its own FCC identification number, and, 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: XYZMODEL1 or Contains FCC ID:

XYZMODEL1. Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization.

(B) If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. FCC Modular Approval Request Rev 3.0 Hui Zhou Gaoshengda Technology Co.,LTD 7. The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. 8. Radio frequency devices operating under the provisions of this part are subject to the radio frequency radiation exposure requirements specified in 1.1307(b), 1.1310, 2.1091, and 2.1093 of this chapter, as appropriate. Applications for equipment authorization of modular transmitters under this section must contain a statement confirming compliance with these requirements. The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Technical information showing the basis for this statement must be submitted to the Commission upon request. Note: If compliance with one or more of the numbered requirements, listed above, cannot be demonstrated, it may be possible to obtain a Limited Modular Approval (LMA). Yes. The module complies with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee. Yes. The module complies with RF exposure requirements. Name: Hui Guan Date: 2022-04-18 Title: Manager Signature of applicant FCC Modular Approval Request Rev 3.0

Hui Zhou Gaoshengda Technology Co.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022-04-18 Subject; Request for Confidentiality FCC ID: 2AC23-WXT2F 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. 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);

Schematic Diagram Block Diagram Parts List Operational Description Software security requirement External Photos Test Setup Photos Internal Photos User Manual 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: Hui Guan Title: Manager

Hui Zhou Gaoshengda Technology Co.,LTD FCC Software Configuration Control Declaration Date: April 18, 2022 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product: WIFI+BT Module Model Number: WXT2FM2511 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: Hui Guan Title: Manager Date: 2022-04-18 Signature of applicant FCC Software Configuration Control Declaration Rev1.1.docx

Aril. 18, 2022 Attestation Letter for Low Power Indoor Client Module Approval FCCID: 2AC23-WXT2F We, Hui Zhou Gaoshengda Technology Co.,LTD attest that this device under FCC ID 2AC23-WXT2F complies with device protocol requirements and operational restrictions: for indoor client 6XD. a(D. Contention-Based Protocol, as demonstrated in the test report, is permanently embedded in the module and is not host-dependent. The device will only associate and connect with a low-power indoor access b. point or subordinate device and never directly connect to other client devices. This device will always initiate transmission under the control of a low-power c. indoor AP or subordinate except for brief transmissions before joining a network. These short messages will only occur if the client has detected an indoor AP or subordinate operating on a channel. These brief messages will have a time-out mechanism such that if it does not receive a response from an AP it will not continually repeat the request. Transmissions will be lower or equal to the power advertised by the indoor d. low-power access point or subordinate and never above the maximum output power allowed by the FCC grant for equipment class 6XD. Contention-based protocol as demonstrated in the test report is permanently e. embedded in the module and is not host-dependent. Furthermore, we fully understand this device is prohibited for control of or communications with unmanned aircraft systems, including drones. For any questions please contact me at your convenience. Date: 2022-04-18 Signature:

Name:

Hui Guan Title:

Manger Company: Hui Zhou Gaoshengda Technology Co.,LTD