2BQHKTCS-10CAN Switch

Type User Guide Project/Product TCS-10 Name TCS-10 User Guide Project Code Author SB Department R&D Date 2025-09-17 CheckedFile Name UG - TCS-10 CAN Switch.odt Printed 2025-09-17 ApprovedRevisionClassification PUBLIC Page 1 (10) Copyright © TK Engineering Oy. All rights reserved. Reproduction, use or disclosure to third parties without express authority is strictly forbidden. CAN Switch TCS-10 User Guide The CAN Switch TCS-10 forwards messages between up to four CAN Bus networks, with optional filters and routing tables. User Guide Version 1.8 Hardware versions 01 and 02 FCC ID: 2BQHKTCS-10 TK Engineering Oy, Hovioikeudenpuistikko 13 as 3, 65100 Vaasa, Finland - Tel: +358 6 357 6300 - [email protected] - www.tke.fi UG - TCS-10 CAN Switch.odt 2 (10) FCC Compliance 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. You are cautioned that any change or modifications to the equipment not expressly approved by the party responsible for compliance could void Your authority to operate such equipment. 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. TK Engineering Oy, Hovioikeudenpuistikko 13 as 3, 65100 Vaasa, Finland - Tel: +358 6 357 6300 - [email protected] - www.tke.fi UG - TCS-10 CAN Switch.odt 3 (10) Table of Contents CAN Switch TCS-10 User Guide.................................................................................................................1 FCC Compliance Statement........................................................................................................................2 Definitions, acronyms and abbreviations.....................................................................................................3 Exclusion of Liability....................................................................................................................................4 Introduction..................................................................................................................................................4 Technical Data.............................................................................................................................................4 Technical details......................................................................................................................................4 Mechanical Dimensions..........................................................................................................................4 Connectors..............................................................................................................................................5 Block schema..........................................................................................................................................6 CAN Interface Protection........................................................................................................................7 Power Supply..........................................................................................................................................7 Transceivers............................................................................................................................................7 CAN Terminators.....................................................................................................................................7 Isolation...................................................................................................................................................7 PE Grounding..........................................................................................................................................7 CAN Cabling...........................................................................................................................................8 Light Emitting Diodes (LEDs)..................................................................................................................8 CAN-Port Usage..........................................................................................................................................8 Frequently Asked Questions (FAQ).............................................................................................................9 Legal Information.........................................................................................................................................9 RoHS directive........................................................................................................................................9 About This Manual..................................................................................................................................9 Trademarks.........................................…

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SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Declaration Applicant Legal Business NameTK Engineering Oy AddressHovioikeudenpuistikko 13 A, 65100 Vaasa, Finland FRN0037186749 Grantee Code2BQHK FCC ID:2BQHKTCS-10 Authorized Contact NameTimo Kesti Contact Phone+358 6 357 6300 Contact [email protected] I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a)in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b)in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1)labeling the equipment with the exact FCC ID as specified in this application, (2)compliance statement labeling pursuant to the applicable rules, (3)compliance of the equipment with the applicable technical rules, c)if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d)in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e)in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1)the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2)the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3)the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f)neither the Applicant nor any party to the application is 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 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g)the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc. terms and conditions as specified in the TCB Application Form 731 (QSF27-14-01). Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List Applicant Signature:Date: Print Name: Timo Kesti Title: CEO *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database QSF27-14-04 Rev 1.4 April 25, 2025Page 1 of 1 Original Issue: Jan. 4, 2021 17.9.2025

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States FCC COVERED LIST DECLARATION LETTER Applicant Legal Business NameTK Engineering Oy AddressHovioikeudenpuistikko 13 A, 65100 Vaasa, Finland FRN0037186749 Grantee Code2BQHKFCC ID:2BQHKTCS-10 Authorized Contact NameTimo Kesti Contact Phone+358 6 357 6300Contact [email protected] TK Engineering Oy (“the applicant”) certifies: -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. -as of the date of the filing of the application, the applicant is not identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. -the software to be loaded prior to marketing of the equipment identified above is not “covered” software manufactured by any entity including predecessors, successors, parents, subsidiaries, affiliates or any entity which has rebranded or relabeled the software produced by the entity(ies) identified on the “Covered List”. -the device is not capable of storing or running software listed on the covered list and therefore is inherently compliant. Covered List Software Compliance Justification The equipment for which authorization is sought is inherently compliant and incapable of either storing or executing software found on the “covered list”, due to its hardware architecture. 1. Device Overview -Name: TKE TCS-10 CAN Switch / Bridge -Model: TCS-10 -FCC ID: 2BQHKTCS-10 -Main processor: MC9S12XDP512 (NXP/Freescale’s HCS12X family) -Operating system: None (bare metal firmware) -Highest internal clock frequency: 80 MHz -Memory: -Flash: 512 kB -RAM: 32 kB -EEPROM: 4 kB -Connectivity: -5 CAN 2.0 A/B interfaces (ISO11898-2) -1 DC power connector, 10-40V 2. Technical Limitations Preventing “Covered List” Software Storage or Execution -No General-Purpose Operating System -The CAN switch uses fixed-purpose firmware written in C and compiled for the MC9S12XDP512 architecture. No Linux, Windows, Android or other general-purpose OS is present. -Limited Memory -The CAN switch only features the internal memory of the microcontroller, which is insufficient to store any “covered list” software. -No File System or Loader -No mechanism to load arbitrary executable code from storage or network. -No Internet or IP Communication -Communications are limited to CAN interfaces and the CAN protocol. -The CAN switch doesn’t feature any antennas or wireless networking interfaces. -Firmware update requires physical access -Firmware can be flashed to the device via the programming pins. This requires physical access to the device, as well as disassembly of the device housing as these pins are not exposed to the outside. -Firmware can be flashed to the device using the built-in bootloader. This requires physical access to the device, as this is only possible through the service/configuration CAN port, which under normal operating conditions is left unconnected. 3. Conclusion Based on the hardware, software and connectivity characteristics of the CAN switch, it is technically incapable of storing or executing any “covered list” software, and is therefore inherently compliant with FCC § 2.911(d)(5)(i) requirements. Link to the Covered List: Covered List Page 1 of 2 Revision 1.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States FCC COVERED LIST DECLARATION LETTER Applicant Signature:Date: Print Name: Timo Kesti Title: CEO *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database Page 2 of 2 Revision 1.0 17.9.2025

UNITED STATES DESIGNATED AGENT LETTER Date: 3 Sep. 2025 TO:Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 ApplicantU.S. designated agent Company Name:TK Engineering OyCompany Name:Institute of Digital Engineering FRN:0037186749FRN:— Grantee Code:2BQHK Contact Name:Timo KestiContact NameDavid Jerome Address:Hovioikeudenpuistikko 13Address:153 Langtree Campus, Suite 104 City/Province/Zip:Vaasa, 65100, FinlandCity/Province/Zip:Mooresville, NC 28117 Telephone:+358 6 357 6300Telephone:704 727-2944 Fax:N/AFax:N/A Email:[email protected]:[email protected] Applicable Equipment: FCC ID: 2BQHKTCS-10 ATTN: Director of Certification: We, TK Engineering Oy and Institute of Digital Engineering understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, TK Engineering Oy and Institute of Digital Engineering acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. ApplicantU.S. designated agent Name: Timo Kesti Name: David Jerome Title: CEOTitle: Executive Director Signature: Signature: David Jerome

TK Engineering Oy Hovioikeudenpuistikko 13, 65100 Vaasa, Finland Tel: +358 6 357 6300 - [email protected] - www.tke.fi To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From:TK Engineering Oy Hovioikeudenpuistikko 13 65100 Vaasa Finland Regarding: Confidentiality Request regarding application for FCC ID: 2BQHKTCS-10 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Timo Kesti CEO TK Engineering Oy 17.9.2025

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HW-version: TCS-10.02 FW-version: 0x1002E Serial no: 003092 Production batch: 38/2025 FCC ID: 2BQHKTCS-10

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Reference number: HELEM2505000142-1 V1.1 Page 1 of 13 These test results are valid for the tested unit only. This report shall not be reproduced, except in full, without a written permission of SGS Fimko. Test Report Electromagnetic Compatibility (EMC) HELEM2505000142-1 V1.1 TESTS ACCORDING TO FCC PART 15 B REQUIREMENTS Equipment Under Test: CAN Switch Model: TCS-10 Trademark: TK Engineering Customer: TK Engineering Oy Hovioikeudenpuistikko 13 A FI-65100 Vaasa Finland FCC Rule Part: FCC CFR 47 Part 15 Subpart B, Class B Date: 12 September 2025 Date: 12 September 2025 Issued by: Checked by: Pekka Kälviäinen Rauno Repo Testing Engineer Senior EMC Specialist Reference number: HELEM2505000142-1 V1.1 Page 2 of 13 Table of Contents TABLE OF CONTENTS TABLE OF CONTENTS ....................................................................................................................................... 2 GENERAL REMARKS .......................................................................................................................................... 3 Disclaimer ........................................................................................................................................................ 3 RELEASE HISTORY ............................................................................................................................................ 4 PRODUCT DESCRIPTION .................................................................................................................................. 5 Equipment Under Test (EUT) .......................................................................................................................... 5 General description ......................................................................................................................................... 5 Samples and modifications ............................................................................................................................. 5 Ports and cables .............................................................................................................................................. 5 Peripherals ...................................................................................................................................................... 6 TEST CONDITION ............................................................................................................................................... 7 EUT Test Conditions During EMC-Testing ..................................................................................................... 7 Operation modes ............................................................................................................................................. 7 Emission Measurement Uncertainty................................................................................................................ 7 SUMMARY OF TESTING ..................................................................................................................................... 8 EMISSION TESTS ............................................................................................................................................... 9 Conducted Emissions In The Frequency Range 150 kHz - 30 MHz. .............................................................. 9 Radiated Emissions In The Frequency Range 30 MHz - 1000 MHz. ............................................................. 11 TEST EQUIPMENT .............................................................................................................................................. 13 Reference number: HELEM2505000142-1 V1.1 Page 3 of 13 Disclaimer GENERAL REMARKS Disclaimer This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for electronic format docu- ments, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Condi- tions/Terms-e-Document.aspx Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written ap- proval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. Reference number: HELEM2505000142-1 V1.1 Page 4 of 13 Release History RELEASE HISTORY Version Changes Issued 1.0 Initial release 13 June 2025 1.1 ICES 003 removed 12 September 2025 Reference number: HELEM2505000142-1 V1.1 Page 5 of 13 Product Description PRODUCT DESCRIPTION Equipment Under Test (EUT) EUT information General Product Description CAN Switch Trademark TK Engineering Model TCS-10 Serial number 3092 Power input port type DC Rated voltage 10 - 40V (24 V was used in Radiated Emissions test and 20 V Conducted in Emissions test) Rated current - Rated power 3.5 W EUT Highest operation freq. 80 MHz Hardware Version (if any) 10.02 Software Version (if any) 0x1002E Mechanical size of the EUT (mm) 31 x 72 x 105 Parallel models - Radio module or chip - The EUT was tested as a table-top standing unit. General description The CAN Switch TCS-10 forwards messages between up to four CAN Bus networks. Samples and modifications No. Name Desc…

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TEST SETUP PHOTOGRAPHS Page 1 of 2 Project number: HELEM2505000142-1 SGS Fimko Ltd. Takomotie 8, FI-00380 Helsinki Finland t +358 9 6963 361 f +358 9 692 5474 www.sgs.fi Member of SGS Group (Société Générale de Surveillance) Photograph 1. The EUT Photograph 2. Radiated Emissions 30 – 1000 MHz TEST SETUP PHOTOGRAPHS Page 2 of 2 Project number: HELEM2505000142-1 SGS Fimko Ltd. Takomotie 8, FI-00380 Helsinki Finland t +358 9 6963 361 f +358 9 692 5474 www.sgs.fi Member of SGS Group (Société Générale de Surveillance) Photograph 3. Conducted Emissions