2ASEQPHHXXXBA7XPortable Han Held Service for iSWITCH wireless systems

C566091_X23_Ed3 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD US Agent for Service of Process: Company Name: ASSA ABLOY Global Solutions FRN: 0033780347 Contact Name: Michael J Scott Address: 2925 E. Plano Parkway Plano, TX 75074 United States Telephone: (810) 278-7474 Email: [email protected] This letter is to confirm that the US Agent for Service of Process accepts responsibility to act as a local representative on behalf of ENKOA SYSTEM S.L. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Applicant: Company name: ENKOA SYSTEM S.L. Product Description: Portable Hand Held Grantee code: 2ASEQ FRN: 0028180651 FCC ID: 2ASEQPHHXXXBA7X Contact Name: JUAN CRUZ IRIONDO ARRIZABALAGA Address: POLIGONO ERRAMONE 45, 20850 MENDARO Telephone No: +34 943707000 Email: [email protected] The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026/05/12 Applicant's Name: Juan Cruz Iriondo Title: CEO Signature US Agent's Name: Michael J Scott Title: CTO Signature 1/1

Application Report 2.4-GHz Inverted F Antenna ABSTRACT This document describes a printed-circuit board (PCB) antenna design that can be used with all 2.4-GHz transceivers and transmitters from Texas Instruments ™ . The maximum gain when used on the reference board is measured to be +3.3 dBi, and the overall size requirements for this antenna are 25.7 × 7.5 mm (not including ground plane). Table of Contents 1 Description of the antenna Design........................................................................................................................................2 2 Measurement Results.............................................................................................................................................................3 2.1 Radiation Pattern...............................................................................................................................................................3 2.2 Reflection.........................................................................................................................................................................10 2.3 Bandwidth.........................................................................................................................................................................11 3 Summary................................................................................................................................................................................11 4 References.............................................................................................................................................................................11 5 Revision History...................................................................................................................................................................12 Trademarks Texas Instruments ™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. www.ti.comTable of Contents SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna1 Copyright © 2021 Texas Instruments Incorporated 1 Description of the antenna Design It is important to make an exact copy of the antenna dimensions to obtain optimum performance. The easiest approach to implement the antenna in a PCB CAD tool is to import the antenna layout from a gerber file or a DXF file. Such files are included in CC2430DB reference design [1]. The gerber file is called Inverted_F_Antenna.spl and the DXF file is called Inverted_F_Antenna.dxf. If the antenna is implemented on a PCB that is wider than the antenna, avoid placing components or having a ground plane close to the end points of the antenna. If the CAD tool being used does not support importing gerber or DXF files, see Figure 1-1 and Table 1-1. The antenna impedance is tuned to 50 ohm on the reference board. The impedance will however be affected by different size and shape of the ground plane, objects in the antenna nearfield such as mechanical assemblies (housing, batteries, etc.), PCB thickness, PCB material and so on. It is therefore recommended to add a pi-network close to the antenna feedpoint for impedance matching. The results presented in this document are based on an antenna implemented on a PCB with a 1-mm thickness using standard FR-4 material. Figure 1-1. IFA Dimensions Table 1-1. IFA Dimensions H15.70 mmW20.46 mm H20.74 mmL125.58 mm H31.29 mmL216.40 mm H42.21 mmL32.18 mm H50.66 mmL44.80 mm H61.21 mmL51.00 mm H70.80 mmL61.00 mm H81.80 mmL73.20 mm H90.61 mmL80.45 mm W11.21 mm Description of the antenna Designwww.ti.com 22.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 2 Measurement Results All of the results presented in this section are based on measurements performed with the CC2430DB [1] evaluation board. 2.1 Radiation Pattern Figure 2-1 shows how to relate all of the radiation patterns to the orientation of the antenna. The radiation patterns were measured with the CC2430 device programmed to 0-dBm output power. Figure 2-1. Relating Antenna to Radiation Patterns www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna3 Copyright © 2021 Texas Instruments Incorporated Figure 2-2 shows the XY plane vertical polarization. Figure 2-2. XY Plane–Vertical Polarization Measurement Resultswww.ti.com 42.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-3 shows the XY plane horizontal polarization. Figure 2-3. XY Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna5 Copyright © 2021 Texas Instruments Incorporated Figure 2-4 shows the XZ plane vertical polarization. Figure 2-4. XZ Plane–Vertical Polarization Measurement Resultswww.ti.com 62.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-5 shows the XZ plane horizontal polarization. Figure 2-5. XZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna7 Copyright © 2021 Texas Instruments Incorporated Figure 2-6 shows the YZ plane vertical polarization. Figure 2-6. YZ Plane–Vertical Polarization Measurement Resultswww.ti.com 82.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-7 shows the YZ plane horizontal polarization. Figure 2-7. YZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna9 Copyright © 202…

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The results refer only and exclusively to the sample, product or material tested under conditions indicated in this document. This document will not be reproduced otherwise than in full. This is the first page of the document, which consists of 66 pages. LGAI Technological center, S.A. Inscrita en el Registro Mercantil de Barcelona, Tomo 35.803, Folio1, Hoja NºB-266.627 Inscripción 1ª. C.I.F. A-63207492 00014069 Ed. 4 LGAI Technological Center, S.A. (APPLUS) Campus de la UAB. Ronda de la Font del Carme, s/n. 08193 Bellaterra (Barcelona) (Spain) T +34 93 567 20 00 / F +34 93 520 20 01 www.appluslaboratories.com File Number 26/36400694 TEST REPORT Radiofrequency Petitioner’s Reference: ENKOA SYSTEM S.L. Company Address: POLIGONO ERRAMONE 45, 20850 MENDARO SPAIN Equipment: PHH Brand: ENKOA HW version/HMN: PHHxxxBA7x Sample #1: 20191193/0126 Applus Id: 41878-0001 Sample #2: 20251130/1225 Applus Id: 41878-0005 Result: complies It has been tested and complies with the applicable standard. See test result summary section. Applicable Standard: RF standard/s: FCC Title 47 Part 15 – Subpart C (October 2024) RSS- 247 Issue 4 (July 2025) KDB 558074 D01 Meas Guiadance v05r02 (April 2019) ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024 RSS-Gen Issue 5 (April 2018) + Amd.1 (March 2019) + Amd.2 (February 2021) 1 The latest modifications of the standard, published at the date of the tests reported in this document, have been considered. Dates and Test Site: Applus Barcelona, Bellaterra Equipment Reception Date March 19, 2026 Test Initial Date: March 25, 2026 Test Final Date: April 22, 2026 Test Manager: Javier Miguel Nadales Lisbona Date of issue: Bellaterra, April 29, 2026 EMC & Wireless Technical Manager Electrical and Electronics LGAI Technological Center S.A. File Number: «File» Page Number 2/66 Service Quality Assurance Applus+, guarantees that this work has been made in accordance with our Quality and Sustainability System, fulfilling the contractual conditions and legal norms. Within our improvement program we would be grateful if you would send us any commentary that you consider opportune, to the person in charge who signs this document, or to the Quality Manager of Applus+, in the following e-mail address: [email protected] 00014069 Ed. 4 1 TEST RESULTS SUMMARY Test Description Sample # DUT Test Modes Results Criteria Note ANTENNA REQUIEREMENTS (FCC Part 15.203, RSS-GEN 6.8) #1 N/A PASS N/A OCCUPIED BANDWIDTH (99%) (FCC Part 15.247 (a), RSS-247 5.2) #2 Mode 1 PASS CN4 6 dB BANDWITDH (FCC Part 15.247 (a), RSS-247 5.2) #2 Mode 1 PASS CN4 MAXIMUM PEAK CONDUCTED OUTPUT POWER (FCC Part 15.247 (c), RSS-247 5.4) #2 Mode 1 PASS CN4 POWER SPECTRAL DENSITY (FCC Part 15.247 (b), RSS-247 5.4) #2 Mode 1 PASS CN4 BAND EDGE (FCC Part 15.247 (d), RSS-247 5.5) #2 Mode 1 PASS CN4 RADIOFREQUENCY RADIATED EMISSIONS (FCC Part 15.247 (d), RSS-247 5.5) #1 Mode 1 PASS CN4 The test results are shown in detail on the following pages. The criteria to give conformity in those cases where it is not implicit in the standard or specification will be, for EMC emissions tests, a non-simple binary decision rule will be followed with a safety zone equal to the value of the uncertainty (w = U). In this case, the upper limit of the value of the probability of false acceptance, according to ILAC G8, is 2.5 % and the criteria notes are: CN1: The measured results are above the upper limit, even considering the uncertainty interval. CN2: The measured results are above the specified limits, but within the uncertainty interval. It is therefore not possible to state compliance based on the 95% level of confidence. However, the results indicate that non-compliance is more probable than compliance. CN3: The measured results are below the specified limits, but within the uncertainty interval. It is therefore not possible to state compliance based on the 95% level of confidence. However, the results indicate that compliance is more probable than non-compliance. CN4: The measured results are within the limits, including the uncertainty interval. File Number: «File» Page Number 3/66 00014069 Ed. 4 2 INDEX 1 TEST RESULTS SUMMARY ................................................................................................................ 2 2 INDEX ............................................................................................................................................... 3 3 GENERAL DESCRIPTION OF TEST ITEMS ........................................................................................ 5 3.1 EQUIPMENT DESCRIPTION ...................................................................................................... 5 3.2 TEST CONFIGURATION............................................................................................................. 6 3.3 PHOTOGRAPHS ......................................................................................................................... 7 3.4 TEST FACILITIES ID ................................................................................................................. 8 3.5 COMPETENCES AND GUARANTEES .......................................................................................... 8 4 TEST RESULTS .................................................................................................................................. 9 4.1 ANTENNA REQUIREMENT ......................................................................................................... 9 4.1.1 Test Setup Required ............................................................................................................. 9 4.1.2 Test Procedure ..................................................................................................................... 9 4.1.3 Test Parameters ................................................................................................................... 9 4.1.4 EMI Receiver configuration .........................................................…

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The results refer only and exclusively to the sample, product or material delivered for testing, and tested under conditions stipulated in this document. The equipment has been tested under conditions stipulated by standard(s) quoted in this document. This document will not be reproduced otherwise than in full. This is the first page of the document, which consists of 21 pages. LGAI Technological center, S.A. Inscrita en el Registro Mercantil de Barcelona, Tomo 35.803, Folio1, Hoja NºB-266.627 Inscripción 1ª. C.I.F. A-63207492 00012971 Ed. 5 LGAI Technological Center, S.A. (APPLUS) Campus de la UAB. Ronda de la Font del Carme, s/n. 08193 Bellaterra (Barcelona) (Spain) T +34 93 567 20 00 / F +34 93 520 20 01 www.appluslaboratories.com File Number 26/36400688 TEST REPORT Electromagnetic Compatibility Petitioner’s Reference: ENKOA SYSTEM S.L. Company Address: POLIGONO ERRAMONE 45, 20850 MENDARO SPAIN Equipment: PHH Brand: ENKOA HW version/HMN PHHxxxBA7x Sample #1: 20191193/0126 Applus Id: 41878-0001 Result: complies It has been tested and complies with the applicable standard. See test result summary section. Applicable Standard: EMC standard/s: FCC 47 CFR Part 15 Subpart B (October 2024) ICES-003 Issue 7 (October 2020) 1 The latest modifications of the standard, published at the date of the tests reported in this document, have been considered. Dates and Test Site: Applus Barcelona, Bellaterra Equipment Reception Date March 19, 2026 Test Initial Date: March 25, 2026 Test Final Date: April 10, 2026 Test Manager: Javier Miguel Nadales Date of issue: Bellaterra, April 23, 2026 EMC & Wireless Technical Manager Electrical and Electronics LGAI Technological Center S.A. File Number: 26/36400688 Page Number 2/21 Service Quality Assurance Applus+, guarantees that this work has been made in accordance with our Quality and Sustainability System, fulfilling the contractual conditions and legal norms. Within our improvement program we would be grateful if you would send us any commentary that you consider opportune, to the person in charge who signs this document, or to the Quality Manager of Applus+, in the following e-mail address: [email protected] 00012971 Ed. 4 1 TEST RESULTS SUMMARY Test Description Sample # DUT Test Modes Req. Criteria Results Criteria Note RADIO-FREQUENCY RADIATED EMISSIONS (FCC Part 15.109, ICES-003 Issue 7 (3.2.2)) #1 Mode 1 CLASS B PASS CN4 The test results are shown in detail on the following pages. The criteria to give conformity in those cases where it is not implicit in the standard or specification will be, for EMC emissions tests, a non-simple binary decision rule will be followed with a safety zone equal to the value of the uncertainty (w = U). In this case, the upper limit of the value of the probability of false acceptance, according to ILAC G8, is 2.5 % and the criteria notes are: CN1: The measured results are above the upper limit, even considering the uncertainty interval. CN2: The measured results are above the specified limits, but within the uncertainty interval. It is therefore not possible to state compliance based on the 95% level of confidence. However, the results indicate that non-compliance is more probable than compliance. CN3: The measured results are below the specified limits, but within the uncertainty interval. It is therefore not possible to state compliance based on the 95% level of confidence. However, the results indicate that compliance is more probable than non-compliance. CN4: The measured results are within the limits, including the uncertainty interval. File Number: 26/36400688 Page Number 3/21 00012971 Ed. 4 2 INDEX 1 TEST RESULTS SUMMARY ................................................................................................................ 2 2 INDEX ............................................................................................................................................... 3 3 GENERAL DESCRIPTION OF TEST ITEMS ........................................................................................ 4 3.1 EQUIPMENT DESCRIPTION ...................................................................................................... 4 3.2 TEST SIGNALS .......................................................................................................................... 5 3.3 ACCEPTANCE CRITERIA ........................................................................................................... 6 3.4 PHOTOGRAPHS ......................................................................................................................... 6 3.5 TEST FACILITIES ID ................................................................................................................. 7 3.6 COMPETENCES AND GUARANTEES .......................................................................................... 7 4 TEST RESULTS .................................................................................................................................. 8 4.1 RADIO-FREQUENCY RADIATED EMISSIONS ........................................................................... 8 4.1.1 Test Setup Required ............................................................................................................. 8 4.1.2 Test Procedure ................................................................................................................... 10 4.1.3 Test Parameters ................................................................................................................. 11 4.1.4 Test Environmental Conditions ............................................................................................. 14 4.1.5 Summary Test Results ........................................................................................................ 14 4.1.6 Test Results ....................................................................................................................... 15 4.1.7 Test Equipment Used ......…

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