FCC ID: 2A7B5-M2X Wireless MCU Module

ABR-WM01-MXX Series User manual CORAL Group Confidential Outline ABR-WM01-MKE Overview Label and label location Block Diagram Operation description ABR-WM01-M Overview Label and label location Block Diagram Operation description CORAL Group Confidential WARNING - NCC NCC NCC LP0002_3.8.2 CORAL Group Confidential WARNING - FCC FCC 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. Federal Communications Commission (FCC) Statement 15.105(b) 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. 15.21 You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the users authority to operate the equipment. FCC RF Radiation Exposure Statement:

1.This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2.This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. CORAL Group Confidential WARNING - IC IC 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, and 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. l'appareil ne doit pas produire de brouillage, et 2. l'utilisateur de l'appareil doit accepter tout brouillage radioelectrique subi, meme si le brouillage est susceptible d'en compromettre le fonctionnement. Caution: Exposure to Radio Frequency Radiation 1.To comply with the Canadian RF exposure compliance requirements, this device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter. 2.To comply with RSS 102 RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. Attention: exposition au rayonnement radiofrquence 1.Pour se conformer aux exigences de conformit RF canadienne l'exposition, cet appareil et son antenne ne doivent pas tre co-localiss ou fonctionnant en conjonction avec une autre antenne ou transmetteur. 2.Pour se conformer aux exigences de conformit CNR 102 RF exposition, une distance de sparation d'au moins 20 cm doit tre maintenue entre l'antenne de cet appareil et toutes les personnes. CORAL Group Confidential Required End Product Labeling Any device incorporating this module must include an external, visible, permanent marking or label which states:

Contains FCC ID: 2A7B5-MX2 and Contains IC : 29413MX2 Obligation d'tiquetage du produit final:

Tout dispositif intgrant ce module doit comporter un externe, visible, marquage permanent ou une tiquette qui dit: "Contient IC : 29413MX2 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC 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. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. FCC This module has been tested and found to comply with the following requirements for Modular Approval. Part 15.247 - Operation within the bands 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. Test Modes This device uses various test mode programs for test set up which operate separate from production firmware. Host integrators should contact the grantee for assistance with test modes needed for module/host compliance test requirements. Antennas The following external antenna type have been approved for use with this radio transmitter. Radio Antenna Type Freq. (MHz) Max. Peak Antenna Gain (dBi) Bluetooth Dipole 2402-2480 3.31 dBi CORAL Group Confidential Antennas This radio transmitter (IC: 2A7B5-MX2, HVIN: ABR-WM01-MKE, ABR-WM01-M) has been approved by Industry Canada to operate with the antenna types listed below 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. Antennes Cet metteur radio (IC: 2A7B5-MX2, HVIN: ABR-WM01-MKE, ABR-WM01-M ) a t approuv par Industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous avec le gain maximal admissible indiqu . types d'antennes non inclus dans cette liste , ayant un gain suprieur au gain maximum indiqu pour ce type , sont strictement interdits pour une utilisation avec cet appareil. Radio Antenna Type Freq. (MHz) Max. Peak Antenna Gain (dBi) Bluetooth Diplole 2402-2480 3.31 CORAL Group Confidential ABR-WM01-MKE ARM Cortex-M33 secure processor core with Bluetooth/Thread/Zigbee wireless technology, 512KB SRAM, 1MB Flash with 2MB QSPI external Flash was built-in M.2 KEY E module with DC/DC power system inside. C o m p o n e n t

S e r v i c e s D e s i g n Wireless Technology Wireless: Bluetooth Low Energy, ANT, and 802.15.4 for, among others, Thread and Zigbee protocols. It also allows the implementation of proprietary 2.4 GHz protocols. RF Power for application (max) EIRP: < 9.8 dBm TX: < +6.5dBm Main Feature Operation Temperature: 40 ~ + 105C Built-in 2MB QSPI Flash support data log or DFU function Built-in RC RT Crystal, or external 32.768KHz C/CE/FCC/IC/TELEC/NBTC/Bluetooth CERTIFICATION Wireless Technology Supported:

Bluetooth5/Thread/Zigbee Support Bluetooth Mesh Bluetooth Long Range Mode Core Processer & Embedded System ARM Cortex-M33 DUAL CORE Application Core 128/64Mhz Network Core 64MHz APP CORE Data Buffer - 1MB Flash + 512KB SRAM + 2MB QSPI Flash NET CORE Data Buffer - 256 KB Flash + 64 KB RAM Arm TrustZone CryptoCell-312 security subsystem GPIO: 45 Configurable Pins OS: ZephyrOS C o m p o n e n t

S e r v i c e s D e s i g n Power Information for Low Power Usage Input VCC: 2.7 ~ 3.6V with regulator build-in nRF5340 core 0.9uA in System OFF 1.3uA in System ON 1.5uA in System ON with network core RTC running 1.7uA in System ON with 64KB network core RAM retained and network core RTC running FEM < 1uA in Sleep Mode QSPI Flash - < 1uA in Power-down CORAL Group Confidential Package Type 22 x 30 x 3.6 mm M.2 KEY E Form Interfaces USB 12 bits ADC SPI I2C I2S PDM UART PWM ABR-WM01-M ARM Cortex-M33 secure processor core with Bluetooth/Thread/Zigbee wireless technology, 512KB SRAM, 1MB Flash with 2MB QSPI external Flash was built-in module with -40 ~ +105 C operation temperature with DC/DC power system inside. C o m p o n e n t

S e r v i c e s D e s i g n Wireless Technology Wireless: Bluetooth Low Energy, ANT, and 802.15.4 for, among others, Thread and Zigbee protocols. It also allows the implementation of proprietary 2.4 GHz protocols. RF Power for application (max) EIRP: < 9.8 dBm TX: < +6.5dBm Main Feature Operation Temperature: 40 ~ + 105C Built-in 2MB QSPI Flash support data log or DFU function Built-in RC RT Crystal, or external 32.768KHz C/CE/FCC/IC/TELEC/NBTC/Bluetooth CERTIFICATION Wireless Technology Supported:

Bluetooth5/Thread/Zigbee Support Bluetooth Mesh Bluetooth Long Range Mode Core Processer & Embedded System ARM Cortex-M33 DUAL CORE Application Core 128/64Mhz Network Core 64MHz APP CORE Data Buffer - 1MB Flash + 512KB SRAM + 2MB QSPI Flash NET CORE Data Buffer - 256 KB Flash + 64 KB RAM Arm TrustZone CryptoCell-312 security subsystem GPIO: 39 Configurable Pins OS: ZephyrOS C o m p o n e n t

S e r v i c e s D e s i g n Power Information for Low Power Usage Input VCC: 2.7 ~ 3.6V with regulator build-in nRF5340 core 0.9uA in System OFF 1.3uA in System ON 1.5uA in System ON with network core RTC running 1.7uA in System ON with 64KB network core RAM retained and network core RTC running FEM < 1uA in Sleep Mode QSPI Flash - < 1uA in Power-down CORAL Group Confidential Package Type 12 x 16 x 2.0 mm M.2 LGA Form Interfaces USB 12 bits ADC SPI I2C I2S PDM UART PWM

CORAL-TAIYI CO. LTD Date: October 27, 2022 TO:

Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding FCC ID: 2A7B5-M2X To whom it may concern:

We, the undersigned, hereby authorize SGS Taiwan Ltd. to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. We also declare that the information provided to the FCC is true and correct to the best of our knowledge

(47 CFR 2.911(d)) and we have been informed of the grantee responsibilities (47 CFR 2.909) with regard to certified equipment. This authorization is valid until further written notice from the applicant. Sincerely, Signature: ____________________ Printed Name /Title: YUCHUNG YANG/CEO Company Name: CORAL-TAIYI Co. Ltd.

CORAL-TAIYI CO. LTD Date: October 27, 2022 Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2A7B5-M2X Pursuant to Sections 0.457(d) and 0.459 of the Commissions Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Block Diagrams Operation Description Parts List & Placement/BOM Tune-Up Procedure Schematic Diagrams External Photos Internal Photos Test Setup Photos Users Manual Type of Confidentiality Requested Permanent Permanent Permanent Permanent Permanent

Permanent*

Permanent*

Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at:

https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have Permanent confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed:

Printed name: YUCHUNG YANG Title: CEO Company Name: CORAL-TAIYI Co. Ltd.

Modular Approval Request FCC (KDB 996369 D01 & Part 15.212) CORAL-TAIYI CO. LTD FCC ID: 2A7B5-M2X Items to be covered by Single modular transmitters. 1. The modular transmitter must have its own RF shielding. Answer from applicant Yes, The EUT provides the RF shielding. 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 requirements of Section 15.203 and 15.204(b)(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). 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. 6. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number in accordance with 15.212 (a)(1)(vi)(A) / (B). 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 1.1310, 2.1091, 2.1093, and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance. Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. The EUT has its buffered modulation. Please see the Schematic Diagram. The EUT has its own power supply regulation. Please see the Schematic Diagram. The EUT meets the FCC antenna requirements; unique antenna connector Please refer to photo of antenna are shown in the test report. The EUT was testes in a stand-alone configuration. Please see section photographs of test configuration in the test report. Please see exhibition label sample for the FCC ID of this module. And also in the exhibition Users manual, there are instructions gives to the OEM on how to label the end product The EUT is compliant with all applicable FCC rules. Details instructions for maintaining compliance are given in the User Manual. The EUT is compliant with RF exposure requirement. RF exposure is addressed in the RF exposure exhibition. Note: A limited modular approval (LMA) may be granted for single or split modular transmitters that comply partially with the requirements above. Name and surname of applicant (or authorized representative): YUCHUNG Date:October 27, 2022 Signature: ___________________________