2BOHY-TR6S621S1WIFI/BT Module+5G

V0.2-Jan.2025 TR6S621S1datasheet SPECIFICATION TR6S621S1 IfonereceivesthisdocumentfromTrulyElectronicsCo.,Ltd.(hereinafterreferredtoas"TrulyElectronics"),itindicatesthatonehasagreed tothefollowingterms.Ifonedoesnotconsenttothefollowingterms,pleaseceasetheuseofthisdocument. ThecopyrightofthisdocumentisownedbyTrulyElectronicsCo.,Ltd.,andanyrightsnotexplicitlygrantedhereinarereserved.This documentinvolvestheproprietaryinformationofTrulyElectronics.WithoutthepriorwrittenpermissionofTrulyElectronics,noentityor individualmayduplicate,disseminate,distribute,utilizeordisclosethisdocument,aswellasanypictures,tables,dataandother informationcontainedtherein. Thisproductconformstothedesignrequirementsregardingenvironmentalprotectionandpersonalsafety.Thestorage,useanddisposal oftheproductshouldcomplywiththerequirementsstipulatedintheproductmanual,relevantcontractsorrelevantnationallawsand regulations. Thecompanyreservestherighttomodifyandimprovetheproductsdescribedinthismanualwithoutpriornotification;meanwhile,it reservestherighttoreviseorwithdrawthismanualatanytime. Ifthereisanyambiguityorobscurityinthetextofthisusermanual,pleaseconsultthecompanyorthedistributorpromptly. Address:NorthOfTheDongChongRoad,TrulyIndustrialArea,ShanweiCity,GuangdongProvince,China. Website:https://www.truly.com.hk TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY WIFI/BT Module+5G V0.2-Jan.2025 Page 2 of19 TR6S621S1datasheet Contents 1.DeviceOverview...........................................................................................................................................3 1.1Descriptions...........................................................................................................................................3 1.2Features.................................................................................................................................................3 1.2.1GeneralFeatures............................................................................................................................3 1.2.2Wi-FiKeyFeatures.........................................................................................................................3 1.2.3BluetoothKeyFeatures..................................................................................................................4 1.3FunctionalBlockDiagram......................................................................................................................5 2.PinConfigurationandFunctions..................................................................................................................5 2.1ModulePinDiagram...............................................................................................................................5 2.2PinFunctions.........................................................................................................................................6 3.Specifications...............................................................................................................................................8 3.1GeneralCharacteristics.........................................................................................................................8 3.2BluetoothRFSpecifications..................................................................................................................10 4.ApplicationandImplementation.................................................................................................................11 4.1ApplicationDiagram.............................................................................................................................11 4.2Referencedesign.................................................................................................................................11 5.MechanicalandPackage...........................................................................................................................16 5.1MechanicalSize...................................................................................................................................16 5.2RecommendedLandPattern...............................................................................................................16 5.3PackageInformation............................................................................................................................17 6.ThermalReflow..........................................................................................................................................18 7.OrderingInformation..................................................................................................................................19 8.RevisionHistory..........................................................................................................................................19 TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY TRULY V0.2-Jan.2025 Page 3 of19 TR6S621S1datasheet 1.DeviceOverview 1.1Descriptions TheTR6S621S1isahighlyintegratedmodulethatsupports1T1R802.11a/b/g/n/ac/axwith WirelessLAN(WLAN)SDIO(SDIO1.1/2.0/3.0)interfacecontrollerandBluetooth5.4HS-UART interfacecontroller.ThehighspeedFFT/IFFTpaths,combinedwithBPSK,QPSK,16QAM,64QAM、 256QAMandupto1024QAMmodulationoftheindividualsubcarriers,andcompatiblecodingrateof 1/2,2/3,3/4,5/6,provideupto600.5MbpsforIEEE802.11ax.TheTR6S621S1MACsupports802.11e formultimediaapplications,802.11iandWAPIforsecurity.TheTR6S621S1providesacomplete solutionforahigh-performanceintegratedwirelessandBluetoothdevice.Itsuitablefor STB,TVs,tablets,phones,IPCandotherfieldssuchasconsumerelectronicdevices,andcanalsobe appliedtothefieldswithhighreliabilityrequirements,suchasindustrialinterconnection. TheTR6S621S1providesacompletesolutionforahigh-performanceintegratedwirelessand Bluetoothdevice. 1.2Features 1.2.1GeneralFeatures Supports3.3Vpowersupply ComplieswithSDIO1.1/2.0/3.0forWLANwithclockrateupto208MHz CMOSMAC,BasebandPHYandRFinasinglemo…

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TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Feb. 2, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BOHY-TR6S621S1 [TRULY ELECTRONICS MFG., LTD] (“the applicant”) certifies that, as of the date of the filing of the application, [AOGES CO., LIMITED] (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. [AOGES CO., LIMITED] ("the agent) understand it is the 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 email address. Designated U.S. Agent Company Name: AOGES CO., LIMITED FRN: 0033947847 Address: 1624 Market St, Ste 226, #30327 Denver CO, 80202 USA Signature: Contact Person: XIAOYAN LAl Tel: +1 303 623 1940 Email: [email protected] Applicant Company Name: TRULY ELECTRONICS MFG., LTD Address: Truly industry city, shanwei Guangdong, P.R.C FRN: 0036853026 Signature: Contact Person: Grant Dou Tel: 18126545121 Email: [email protected]

TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Jan. 24, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BOHY-TR6S621S1 TRULY ELECTRONICS MFG., LTD (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Jiankuai Li Title: Manager Address: Truly industry city, shanwei Guangdong, P.R.C Tel.: +86-075536886288 Email: [email protected]

TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Jan. 24, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2BOHY-TR6S621S1 Product Name: WIFI/BT Module+5G This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Jiankuai Li Title: Manager Address: Truly industry city, shanwei Guangdong, P.R.C Tel.: +86-075536886288 Email: [email protected] TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check SBOM (Software Bill of Materials) [For Device is not Inherent compliance] Section Component Name Version Supplier 1 2 3

TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Feb. 2, 26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BOHY-TR6S621S1 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description ⎯ FCC Software Security Requirements for UNII devices Rev1.0 ⎯ (Etc.) The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, Printed Name: Jiankuai Li Title: Manager Address: Truly industry city, shanwei Guangdong, P.R.C Tel.: +86-075536886288 Email: [email protected]

TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Jan. 24, 26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BOHY-TR6S621S1 I, the undersigned, hereby authorize (SHENZHEN STS TEST SERVICES CO.,LTD.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (SHENZHEN STS TEST SERVICES CO.,LTD.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (TRULY ELECTRONICS MFG., LTD). We 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, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Printed Name: Jiankuai Li Title: Manager Address: Truly industry city, shanwei Guangdong, P.R.C Tel.: +86-075536886288 Email: [email protected]

TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Date (January 20, 2026) Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Modular Approval Request FCC ID: 2BOHY-TR6S621S1 The following attestation addresses the requirements to support modular approval: Modular approval requirement Yes (provide brief statement) No * (a) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly The module contains a metal shield which covers all RF active components and circuitry to comply with FCC limits. (b) The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal The module transits part15 compliant signal, in which the maximum data rate is defined by the standard and where the data is buffered in the memory and not transmitted in excessive data rate nor on the over-modulated signals. (c) The module must contain power supply regulation on the module The module contains its own power supply regulation. (d) The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) The module uses Internal antenna (e) The module must demonstrate compliance in a stand-alone configuration The module was tested stand- alone as shown in test setup photographs filed with this application. (f) The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements) There is a label on the module as shown in the labeling exhibit filed with this application.Host specific labelling instructions are shown in the installation manual .filed with this application. (g) The module must comply with all specific rules applicable to the transmitter. The grantee must provide comprehensive instructions to explain compliance requirements The module complies with FCC Part 15C and Part 15E requirements. Instructions to the OEM installer are provided in the installation manual filed with this application. TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Modular approval requirement Yes (provide brief statement) No * (h)The module must comply with RF exposure requirements The module meets Mobile exclusion levels as shown in the RF exposure information filed with this application. * Please provide a detailed explanation if the answer is “No.” Sincerely, Signed: Printed Name: Jiankuai Li Title: Manager Address: Truly industry city, shanwei Guangdong, P.R.C Tel.: +86-075536886288 Email: [email protected]

Differences Description We TRULY ELECTRONICS MFG., LTD state: Product： WIFI/BT Module+5G Model Name： TR6S621S1, TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 Trade Name: / FCC ID: 2BOHY-TR6S621S1 The electrical circuit design, layout, components used and internal wiring for above models are identical, only different in model name. Signatory Date 2026.01.20 Signature Name: Grant Dou Title: Manager Company: TRULY ELECTRONICS MFG., LTD Address: Truly industry city, shanwei Guangdong, P.R.C

Page 1 of 2 Report No.: STS2511001 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 BT+2.4G WiFi+5GWiFi ANT Page 2 of 2 Report No.: STS2511001 Photo 3 Photo 4

Label Size:8*2mm Label attached to the shielding cover FCC ID: 2BOHY-TR6S621S1 .

Page 1 of 1 Report No.: STS2511001 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. MPE Report Report No.:STS2511001H02 Issued for TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Product Name: WIFI/BT Module+5G Brand Name: N/A Model Name: TR6S621S1 Series Model(s): TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 FCC ID: 2BOHY-TR6S621S1 Test Standards: FCC 47CFR §2.1091 Page 2 of 10 Report No.: STS2511001H02 TEST REPORT Applicant’s Name ................. : TRULY ELECTRONICS MFG., LTD Address ................................. : Truly industry city, shanwei Guangdong, P.R.C Manufacturer's Name ........... : TRULY ELECTRONICS MFG., LTD Address ................................. : Truly industry city, shanwei Guangdong, P.R.C Product Description Product Name ........................ : WIFI/BT Module+5G Brand ................................... : N/A Model Number ....................... : .. : TR6S621S1 Series Model(s) ...................... : TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 Standards ............................. : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 05 Nov. 2025 Date (s) of performance of tests ............. : 05 Nov. 2025 ~ 03 Dec. 2025 Date of Issue .......................................... : 03 Dec. 2025 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 10 Report No.: STS2511001H02 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 6 2. FCC 47CFR §2.1091 REQUIREMENT 7 2.1 TEST STANDARDS 7 2.2 LIMIT 7 2.3 TEST RESULT 10 Page 4 of 10 Report No.: STS2511001H02 Revision History Rev. Issue Date Report No. Effect Page Contents 00 03 Dec. 2025 STS2511001H02 ALL Initial Issue Page 5 of 10 Report No.: STS2511001H02 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name WIFI/BT Module+5G Brand N/A Model Name TR6S621S1 Series Model(s) TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 Model Difference Only different in model name Product Description The EUT is WIFI/BT Module+5G Operation Frequency: Bluetooth: 2402~2480 MHz 2.4G WLAN: 802.11b/g/n/ax(20MHz): 2412~2462MHz 802.11n/ax(40MHz):2422~2452MHz 5.2G WLAN: 802.11a/n/ac/ax (20MHz): 5180~5240MHz 802.11n /ac/ax(40MHz):5190~5230MHz 802.11ac/ax (80MHz):5210MHz 5.3G WLAN: 802.11a/n/ac/ax (20MHz): 5260~5320MHz 802.11n /ac/ax(40MHz):5270~5310MHz 802.11ac/ax (80MHz):5290MHz 5.6G WLAN: 802.11a/n/ac/ax (20MHz): 5500~5700MHz 802.11n /ac/ax(40MHz):5510~5670MHz 802.11ac/ax (80MHz):5530~5610MHz 5.8G WLAN: 802.11a/n/ac/ax (20MHz): 5745~5825MHz 802.11n /ac/ax(40MHz):5755~5795MHz 802.11ac/ax (80MHz):5775MHz Modulation Type: BT: BT BR(1Mbps): GFSK BT EDR(2Mbps): π/4-DQPSK BT EDR(3Mbps): 8DPSK BLE: GFSK 2.4G WLAN: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM):BPSK,QPSK,16-QAM, 64-QAM 802.11n(OFDM):BPSK,QPSK,16-QAM, 64-QAM 802.11ax(OFDM, OFDMA):BPSK,QPSK, 16-QAM,64-QAM,256-QAM,1024QAM 5G WLAN: 802.11a(OFDM):BPSK,QPSK,16-QAM, 64-QAM 802.11n(OFDM):BPSK,QPSK,16-QAM, 64-QAM 802.11ac(OFDM):BPSK,QPSK,16-QAM, 64-QAM,256-QAM 802.11ax(OFDM, OFDMA):BPSK,QPSK, 16-QAM,64-QAM,256-QAM,1024QAM Antenna gain: 2.5dBi Page 6 of 10 Report No.: STS2511001H02 Antenna Designation: Dipole Power Rating Input: DC 3.3V 800mA Adapter N/A Battery N/A Hardware Version V0.1 Software Version Android 12 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 7 of 10 Report No.: STS2511001H02 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 8 of 10 Report No.: STS2511001H02 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2511001W08 Issued for TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Product Name: WIFI/BT Module+5G Brand Name: N/A Model Name: TR6S621S1 Series Model(s): TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 FCC ID: 2BOHY-TR6S621S1 Test Standards: FCC Part15.247 Page 2 of 68 Report No.: STS2511001W08 TEST REPORT Applicant’s Name ..................: TRULY ELECTRONICS MFG., LTD Address ..................................: Truly industry city, shanwei Guangdong, P.R.C Manufacturer's Name ...........: TRULY ELECTRONICS MFG., LTD Address ..................................: Truly industry city, shanwei Guangdong, P.R.C Product Description Product Name .........................: WIFI/BT Module+5G Brand Name ...........................: N/A Model Name ...........................:... : TR6S621S1 Series Model(s) .....................: TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 Test Standards ......................: FCC Part15.247 Test Procedure .......................: ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the IC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ............................................ : Date of receipt of test item ...................... : 05 Nov. 2025 Date (s) of performance of tests ............. : 05 Nov. 2025 ~ 03 Dec. 2025 Date of Issue ........................................... : 03 Dec. 2025 Test Result ............................................... : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 68 Report No.: STS2511001W08 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.6 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 20 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 21 4.6 TEST RESULTS 22 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 35 5.1 LIMIT 35 5.2 TEST PROCEDURE 35 5.3 TEST SETUP 35 5.4 EUT OPERATION CONDITIONS 35 5.5 TEST RESULTS 35 6. POWER SPECTRAL DENSITY TEST 36 6.1 LIMIT 36 6.2 TEST PROCEDURE 36 6.3 TEST SETUP 36 Page 4 of 68 Report No.: STS2511001W08 Table of Contents Page 6.4 EUT OPERATION CONDITIONS 36 6.5 TEST RESULTS 36 7. BANDWIDTH TEST 37 7.1 LIMIT 37 7.2 TEST PROCEDURE 37 7.3 TEST SETUP 37 7.4 EUT OPERATION CONDITIONS 37 7.5 TEST RESULTS 37 8. PEAK OUTPUT POWER TEST 38 8.1 LIMIT 38 8.2 TEST PROCEDURE 38 8.3 TEST SETUP 38 8.4 EUT OPERATION CONDITIONS 38 8.5 TEST RESULTS 38 9. ANTENNA REQUIREMENT 39 9.1 STANDARD REQUIREMENT 39 9.2 EUT ANTENNA 39 APPENDIX 1-TEST DATA 40 DUTY CYCLE 40 MAXIMUM PEAK CONDUCTED OUTPUT POWER 44 -6DB BANDWIDTH 48 MAXIMUM POWER SPECTRAL DENSITY LEVEL 52 BAND EDGE 56 CONDUCTED RF SPURIOUS EMISSION 61 APPENDIX 2- EUT TEST PHOTO 68 Page 5 of 68 Report No.: STS2511001W08 Revision History Rev. Issue Date Report No. Effect Page Contents 00 03 Dec. 2025 STS2511001W08 ALL Initial Issue Page 6 of 68 Report No.: STS2511001W08 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 68 Report No.: STS2511001W08 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Channel Bandwidth ±3.6% 10 Power Spectral Density, conducted ±1.214dB 11 Duty Cycle ±3.2% Page 8 of 68 Report No.: STS2511001W08 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name WIFI/BT Module+5G Brand Name N/A Model Name TR6S621S1 Series Model(s) TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 Model Difference Only different in model name Produ…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2511001W09 Issued for TRULY ELECTRONICS MFG., LTD Truly industry city, shanwei Guangdong, P.R.C Product Name: WIFI/BT Module+5G Brand Name: N/A Model Name: TR6S621S1 Series Model(s): TR6S621S1-T, TR6S521S1-T, TR6S621S2, TR6S521S2 FCC ID: 2BOHY…

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