FCC ID: 2A6NFEJ2840 Bluetooth low energy / ANT / 802.15.4 Module

EJ2840 KAGA FEI Co., Ltd. 04-Jul.2023 Ver.1.0 User manual

(for EJ2840) FCC ID: 2A6NF EJ2840 IC: 28568- EJ2840 KAGA FEI Co., Ltd. 1/5 04-Jul.2023 Ver.1.0 EJ2840 KAGA FEI Co., Ltd. This module should be installed in the host device according to the interface specification. 1) Japan Regulatory Information This module is approved with the specic antenna on this module. Please ensure that your product can also bear a label with the following information. If the product is so small that it is not practicable to place the label, you can also place it in the instruction manual and package. The mark diameter shall be easily legible without using a device such as light microscopes. 005-103131 It is recommended to include the following sentence in the user manual of your product:

This product installs a radio system which has been approved as a radio station in a low power data communication system based on the Radio Law. EJ2840 005-103131 2) Canada Regulatory Information a) This device complies with Innovation, Science and Economic Development Canadas applicable license-exempt RSSs. 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. 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) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. b) This product is certified as type of the portable device with Innovation, Science and Economic Development Canada Rules. To maintain compliance with RF Exposure requirement, please use within specification of this product and have a separation distance of minimum 15 mm between the user and/or bystander and the antenna and /or radiating element. This distance ensures that the output power (e.i.r.p.) of EJ2840 is below the SAR evaluation Exemption limits defined in RSS-102 issue 5. Ce produit est certifi comme type de l'appareil portable avec Innovation, Sciences et Dveloppement conomique Canada Rgles. Pour maintenir l'acquiescement avec exigence Exposition de RF, veuillez utiliser dans spcification de ce produit et respecter une distance de sparation d'au moins 15 mm entre l'utilisateur et / ou un tiers et l'antenne et / ou l'lment rayonnant. Cette distance garantit que la puissance de sortie (p.i.r.e.) d EJ2840 est infrieure aux limites dexemption de lvaluation SAR dfinies dans le numro 5 de la norme RSS-102. c) Please notify certified ID by either one of the following methods on your product. Specifiez ID certifie dans votre produit par une de mthode suivante.

-Contains Transmitter module IC : 28568-EJ2840

-Contains IC :28568-EJ2840 KAGA FEI Co., Ltd. 2/5 04-Jul.2023 Ver.1.0 EJ2840 KAGA FEI Co., Ltd. d) Please indicate your product name at any location on the exterior of the host product or product packaging or product literature, which shall be available with the host product or online. e) Please include the following statements in rectangle on the user manual of the host device of this module;

This device complies with Innovation, Science and Economic Development Canada license-exempt RSS standards. 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. Le prsent appareil est conforme aux CNR Innovation, Sciences et Dveloppement conomique Canada applicables auxappareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

1) l'appareil ne doit pas produire de brouillage;

2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. 3) FCC Regulatory Information a) 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. b) FCC ID is not indicated on this device since there is no space on it. FCC ID of this device is as below. FCC ID: 2A6NFEJ2840 c) Please notify certified ID by either one of the following methods on your product.

-Contains Transmitter Module FCC ID: 2A6NFEJ2840

-Contains FCC ID: 2A6NFEJ2840 d) CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. e) This product is product is certified as type of the portable device with FCC Rules. To maintain compliance with RF Exposure requirement, please use within specification of this product. f) The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. g) This module can change the output power depending on the circumstances by the application software which is developed by module installer. Any end user cannot change the output power. h) This device complies with part 15 of the FCC Rules.

-Part 15 Subpart C KAGA FEI Co., Ltd. 3/5 04-Jul.2023 Ver.1.0 EJ2840 KAGA FEI Co., Ltd. i) The modular transmitter is only FCC authorized for the specific rule parts (Part 15 Subpart C) listed on the grant, and 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. j) Co-location of this module with other transmitters that operate simultaneously are required to be evaluated using the FCC multi transmitter procedures. When installing this module to your final devices, please make sure to carry out all the necessary evaluations according to the applicable guidelines like follows:

-for RF exposure: KDB 447498, KDB 996369 and any other relevant guidelines

-for EMC: KDB 996369 D04 and any other relevant guidelines k) When you install this module to your final devices, please ensure that your final composite product complies with the applicable FCC rules in reference to a guidance in KDB 996369. l) Antenna List This module is approved along with the following antenna. You cannot use any antennas other than the listed one because it deviates from the accredited conditions. Manufacturer Part No. KAGA FEI N/A (Printed on PCB) Dimensions 3.45mm x 4.7mm Antenna Type Maximum Antenna Gain Monopole

-1.5dBi m) Please include the following statements in rectangle on the user manual of the host device of this module;

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. FCC CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This product is certified as type of the portable device with FCC Rules. To maintain compliance with RF Exposure requirement, please use within specification of this product. 4) CE Regulatory Information a) When your end product installs this module, it is required to proceed additional certification processes before placing on the market in EU member states to make your products fully comply with relative EU standards. b) KAGA FEI can provide you the test reports of conducted measurement portion for the radio module. You can utilize the test reports for the certification processes of your end product as it requires radio testing. KAGA FEI Co., Ltd. 4/5 EJ2840 Control No. Pin Descriptions 04-Jul.2023 Ver.1.0 KAGA FEI Co., Ltd. Control name Pin Layout

(1/1) Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin name GND P0.00 XL1 P0.01 XL2 P0.04 AIN2 VDD DEC4 P0.30 AIN6 P0.28 AIN4 GND P0.02 AIN0 P0.03 AIN1 GND Pin function Ground Digital I/O Analog input Digital I/O Analog input Digital I/O Analog input Power Power Digital I/O Analog input Digital I/O Analog input Ground Digital I/O Analog input Digital I/O Analog input Ground OUT_ANT Antenna In/Out OUT_MOD RF In/Out GND SWDIO SWDCLK P0.18 RESET P0.08 GND P0.06 P0.07 P0.05 AIN3 DCC NFC1 P0.09 NFC2 P0.10 P0.29 AIN5 GND Ground Digital I/O Digital input Digital I/O Digital I/O Ground Digital I/O Digital I/O Digital I/O Analog input Power NFC input Digital I/O NFC input Digital I/O Digital I/O Analog input Ground Description Ground pin. (0 V) General purpose I/O pin. Connection for 32.768kHz crystal (LFXO). General purpose I/O pin Connection for 32.768kHz crystal (LFXO). General purpose I/O pin. Analog input Power supply pin. 1V3 regulator supply decoupling. General purpose I/O pin. Analog input General purpose I/O pin. Analog input Ground pin. (0 V) General purpose I/O pin. Analog input General purpose I/O pin. Analog input Ground pin. (0 V) Internal antenna. It should be connected to Pin 14 OUT_MOD for normal operation. RF I/O pin. It should be connected to Pin 13 OUT_ANT for normal operation. Ground pin. (0 V) Serial Wire Debug I/O for debug and programming Serial Wire Debug clock input for debug and programming General purpose I/O pin Configurable as system RESET pin.

(Factory default : GPIO) General purpose I/O pin. Ground pin. (0 V) General purpose I/O pin. General purpose I/O pin. General purpose I/O pin. Analog input DC/DC converter output pin. NFC antenna connection. General purpose I/O pin. NFC antenna connection. General purpose I/O pin. General purpose I/O pin. Analog input Ground pin. (0 V) KAGA FEI Co., Ltd. 5/5

Control No. Title OutlineAppearance APPROVED CHECKED DRAWN DESIGNED 1/1 Description of laser Marking 1) 2) 3) 4) KAGA FEI EJ2840 User-Code Lot No. 5) 1) Manufacturer

: KAGA FEI 2) Model (upper 6 digits)

: EJ2840 3) User-Code

4) Product Lot number

: Four digits (Refer to [Instruction for Lot Number]) 5) 1 pin mark Marking of ID number It is impossible to put a label on this very small metal shielding case. Therefore the marking of model number and user code is written by LASER marker. It needs to consider about alignment accuracy as well. The traceability requirement in quality control under ISO standard is secured by the Lot number, the Model number and user code marking on each product. The marking can be not removed by our company regulation for product management. Putting on this together, marking of ID number on this shielding case with 4.4mm width is impossible. It's describe on a user's manual and a packaging because it isn't possible to indicated " FCC ID:2A6NFEJ2840 ". KAGA FEI Co., Ltd. Control No. Title OutlineAppearance APPROVED CHECKED DRAWN DESIGNED 2/2 Shield case dimensions Unit:mm Packaging Figure Label 1 Label 2 Label 3 Reel or cut tape Aluminum moisture barrier bag Corrugated cardboard box Packaging Label A reel or cut tape is packaged in an aluminum moisture barrier bag and stored in an individual box. Label 1-3 are attached to each and contain " FCC ID:2A6NFEJ2840 ". KAGA FEI Co., Ltd.

Date: July 21, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 2.911 (d)(5) Attestation FCC ID: 2A6NFEJ2840 KAGA FEI Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. KAGA FEI Co., Ltd. (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. Sincerely yours, Mikio Aoki KAGA FEI Co., Ltd.

TianHeng Consulting, LLC 392 Andover Street, Wilmington, MA 01887, United States Tel: +1 617-997-4010 Email: tianhengconsulting@gmail.com CFR 47 2.911 (d)(7) FCC US Agent Letter of Attestation Date: 06-06-2023 FCC ID: 2A6NFEB2840, 2A6NFES2810, 2A6NFEJ2840, 2A6NFEC2810 To: Federal Communications Commission 45 L Street NE Washington, DC 20554 USA FCC US Agent Agent Company Name: TianHeng Consulting, LLC FRN: 0033401258 Agent Contact Name: Hualing Dong Agent US Address: 392 Andover Street, Wilmington, MA 01887, United States Agent Email Address: tianhengconsulting@gmail.com This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of KAGA FEI Co., Ltd. (the applicant) for the above referenced FCC ID. We are aware of the requirements and responsibilities of the applicants agent for service of process as outlined in the FCC section 2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. Sincerely yours, Authorized Agent Contact Person Name: Hualing Dong Agent contact Job Title: President Agent Company name: TianHeng Consulting, LLC Grantee FRN: 0032316325

Date: July 21, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 2.911 (d)(7) Agent Designation Attestation FCC ID: 2A6NFEJ2840 Grantee FRN: 0032316325 KAGA FEI Co., Ltd. (the applicant) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicants agent for service of process. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility under CFR 47 2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information:

Contact Person: Hualing Dong Company Name: TianHeng Consulting, LLC FRN: 0033401258 Company Address: 392 Andover Street, Wilmington, MA 01887, United States Email: tianhengconsulting@gmail.com Sincerely yours, Signature:

Mikio Aoki KAGA FEI Co., Ltd.

Letter of Authorization Date: July 21, 2023 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 Applicant: KAGA FEI Co., Ltd. FCC ID: 2A6NFEJ2840 To whom it may concern:

We, the undersigned, hereby authorize Akiko Nishimura of Consumer, Medical & Information Technologies Division, UL Japan, Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Japan, Inc. 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. This authorization is valid until further written notice from the applicant. The application for the subject equipment has not been submitted to another TCB for certification. Sincerely Yours, Mikio Aoki KAGA FEI Co., Ltd.

Authorization Letter for Change in ID July 21, 2023 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 To whom it may concern:

This letter grants authorization for representatives of KAGA FEI Co., Ltd. to apply to the FCC for a change in identification as specified under 47 CFR 2.933 of the FCC rules. This authorization applies to the following product approved on 10/21/2019. FCC ID Applicant

: RYYEYSKJN

: TAIYO YUDEN CO., LTD. Product name

: Bluetooth low energy / ANT / 802.15.4 Module Model name

: EYSKJN We are aware that KAGA FEI Co., Ltd. intends to use their own FCC ID: 2A6NFEJ2840 to create subsequent change in ID for this module to allow use for multiple hosts conditions. Sincerely yours, Hideki Kato TAIYO YUDEN CO., LTD.

Request Letter for Change in ID July 21, 2023 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 To whom it may concern:

This Change in Identification request applies for a new FCC ID as established in 47 CFR 2.933(b) for a currently approved device. This application by us, KAGA FEI Co., Ltd., will establish a new FCC ID: 2A6NFEJ2840 under our grantee code for purpose of marketing. The original grant to TAIYO YUDEN CO., LTD. will remain in effect. Per 2.933(b) 1. The original identification is RYYEYSKJN 2. The original grant date is 10/21/2019 3. The equipment is electrically identical. Only the Model name, Trade name, Module manufacturer and FCC ID number are different. 4. The original test results are applicable and representative of this changed device. 5. Exterior photographs are included in this application. The following files are electronically submitted as attachments:

Cover Letter Label drawing/ location Photo (External) User Manual Sincerely, Mikio Aoki KAGA FEI Co., Ltd.

Declaration of professional installation Date: July 21, 2023 UL Verification Services Inc. 47173 Benicia Street, Fremont, CA 94538 FCC ID : 2A6NFEJ2840 Applicant : KAGA FEI Co., Ltd. To whom it may concern:

This product is mounted inside of the end product by professional installers OEM. They use this module with changing the output power depending on the circumstances by the application software which is developed by module installer. Any end user cannot change the output power. Thank you for your attention to this matter. Sincerely, Mikio Aoki KAGA FEI Co., Ltd.

Request for Limited Modular Transmitter Approval July 21, 2023 FCC ID : 2A6NFEJ2840 Applicant : KAGA FEI Co., Ltd. This transmitter, model: EJ2840 is designed by us. It complies with the modular transmitters basic requirements (Item 1 to 8) in FCC Part 15 Subpart C Section 15.212 as indicated below:

Modular Approval Checklist:

Modular approval requirement

(1) Have its own RF shielding.

(2) Have buffered modulation/data inputs.

(3) Have its own power supply regulation. Yes No the antenna and transmission system

(4) Comply with requirements of 15.203, 15.204(b) and 15.204(c).

(5) Tested in a stand-alone configuration. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in FCC 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. 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.

(6) Equipped with either a permanently affixed label or must be capable of electronically displaying its FCC ID. 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.

(7) 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.

(8) Comply with any applicable RF exposure requirements in its final configuration: The modular transmitter complies with FCC radiation exposure requirement. Mikio Aoki KAGA FEI Co., Ltd. Since there is no space which indicates FCC ID on this module, FCC ID is indicated in a manual. If the FCC ID is not visible when the module is installed inside another device, then the module is installed must also display a label referring to the enclosed module.