2ASCB-DH05514G55-inch PCAP TOUCH WALL MOUNTED AND 14OS

D2GGroupLLC Address ： 81CommerceDrive,FallRiver,Massachusetts02720,UnitedStates Date:2026-07-03 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2ASCB-DH05514G (“D2GGroupLLC”)certifiesthat,asofthedateofthefilingoftheapplication,D2GGroup LLCisourdesignatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. (“D2GGroupLLC”)acceptstomaintainanagentfornolessthanoneyearafterthegrantee hasterminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. D2GGroupLLCaccepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:D2GGroupLLC Address:81CommerceDrive,FallRiver,Massachusetts02720,UnitedStates FRN：0028157329 ContactPerson:LynnMcElroy Tel.:8775816818 Email:[email protected] Sincerely, SignedonbehalfofD2GGroupLLCSignedonbehalfofD2GGroupLLC Name:LynnMcElroyName:LynnMcElroy Title:Director,DigitalSolutionsTitle:Director,DigitalSolutions Date:2026-07-03Date:2026-07-03

Rev1/26/2023 D2GGroupLLC FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-29-2026 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2ASCB-DH05514G (“D2GGroupLLC”)certifiesthattheequipmentforwhichauthorizationissoughtisnot“covered” equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules. (“D2GGroupLLC”)certifiesthattheequipmentforwhichauthorizationissoughtdoesnotinclude cybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessors andassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446D01Covered EquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature)LynnMcElroy (Applicantprintedname) Rev1/26/2023 D2GGroupLLC FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:06-29-2026 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2ASCB-DH05514G (“D2GGroupLLC”)certifiesthat,asofthedateofthefilingoftheapplication,D2GGroupLLCisnot identifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)LynnMcElroy

D2GGroupLLC Date ： 06-29-2026 Product/ModelNumber:55-inchPCAPTOUCHWALLMOUNTEDAND 14OS/DH055TLB,DH05514G FCCID ： 2ASCB-DH05514G Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:LynnMcElroy ContactListedonFCCWesbite Title:Director,DigitalSolutions Email:[email protected] Telephone:8775816818 Onbehalfof:D2GGroupLLC

D2GGroupLLC OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:June29,2026 Subject;RequestforConfidentiality FCCID:2ASCB-DH05514G ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:LynnMcElroy Title:Director,DigitalSolutions

D2GGroupLLC ProductSimilarityDeclaration Productname:55-inchPCAPTOUCHWALLMOUNTEDAND 14OS Modelname:DH055TLB,DH05514G FCCID:2ASCB-DH05514G We(D2GGroupLLC)herebystatethatallthemodelsare electricalidenticalincludingthesamesoftwareparameterand hardwaredesign(i.e.,circuitdesign,PCBLayout,RF module/circuit,antennatype(s)andantennalocation,components onPCB,etc.,),samemechanicalstructureanddesign(including productenclosure,materials,etc.,),theonlydifferenceisthe modelnumber. Signature: Name:LynnMcElroy Title:Director,DigitalSolutions Place,date:FallRiver,2026.07.03

YOUGUANG OPTOELECTRONICS 2026-04-20-001 55" PCAPTCH WALL MOUNTED AND 14 OS DC Power Por On/off switc AC Power Cord Socket h t Audio output port HDMI Por USB 3.0 por RJ45 por Type-C port t t t USB 2.0 port 55" LCD 4 5 50.8mm Series No: XXXXXX0001 10mm 72.4m 7.3mm m 1 2 1" " 2 3 89mm 56mm 55-inch PCAPTOUCH WALL MOUNTED 116W AND 14OS DH055TLB 2.3A 2ASCB-DH05514G 1 55-inch PCAPTOUCH WALL MOUNTED AND 14OS DH055TLB 2.3A 116W 2ASCB-DH05514G Series No: XXXXXX0001 3 4 25 DC DC TYPE-C TYPE-C USB 2.0 USB 2.0 USB 2.0 USB 2.0 LAN LAN HDMI-IN HDMI-IN USB 3.0 USB 3.0

FCCID:2ASCB-DH05514G RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1091，Unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremity SARevaluationforgeneralpopulationexposureconditions,bymeasurementornumericalsimulation,isnot requiredwhenthecorrespondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) Frequencyrange (MHz) Electricfield strength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm 2 ) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3–3.06141.63*(100)6 3.0–301842/f4.89/f*(900/f 2 )6 30–30061.40.1631.06 300–1500f/3006 1500–100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f 2 )30 30–30027.50.0730.230 300–1500f/150030 1500–100,0001.030 f=frequencyinMHz Friistransmissionformula:Pd=(Pout*G)/(4*pi*r 2 ) Where Pd=powerdensityinmW/cm 2 ,Pout=outputpowertoantennainmW; G=gainofantennainlinearscale,Pi=3.1416; R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm 2 .Ifweknowthemaximumgainoftheantennaandthetotalpowerinputto theantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. TestResultofRFExposureEvaluation Remark： 1.WiFi2.4g,WiFi5gdonottransmitatthesametime BTandwificantransmitatthesametime 2.InthecaseofsimultaneouslaunchesforwifiandBT: TheMaxCalc.Thresholds:BT:000433,WiFi:0.010884 BTandWifi:0.000433+0.010884=0.011314≤1 SoaSARtestisnotrequired Operating Mode Frequency Measured Power Tuneup tolerance Max.Tune upPower Antenna Gain Power Densityat R=20cm Power Density Limit Result (MHz)(dBm)(dBm)(dBm)(dBi)(mW/cm 2 )(mW/cm 2 ) BLE(1M)2402-2480-0.03 0±1 12.380.0004331.0PASS BR&EDR2402-2480-0.73 0±1 12.380.0004331.0PASS WiFi2.4G2412-246213.8 14±1 152.380.0108841.0PASS WiFi5.1G5180-524010.7610±111-2.070.0015551.0PASS WiFi5.8G5745-58255.195±161.120.0010251.0PASS

Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page1of65 RF Test Data FCC ID:2ASCB-DH05514G Duty Cycle........................................................................................................................................................................2 Maximum Peak Conducted Output Power.......................................................................................................................8 -20dB Bandwidth............................................................................................................................................................14 Occupied Channel Bandwidth........................................................................................................................................20 Band Edge......................................................................................................................................................................26 Band Edge(Hopping)......................................................................................................................................................33 Conducted RF Spurious Emission.................................................................................................................................40 Carrier Frequencies Separation.....................................................................................................................................50 Number of Hopping Channel..........................................................................................................................................53 Dwell Time......................................................................................................................................................................56 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page2of65 Duty Cycle ConditionModeFrequency (MHz)AntennaDuty Cycle (%)Correction Factor (dB)1/T (kHz) NVNT 1-DH12402Ant130.115.212.66 NVNT 1-DH12441Ant130.155.212.65 NVNT 1-DH12480Ant130.125.212.66 NVNT 2-DH12402Ant131.285.052.56 NVNT 2-DH12441Ant131.245.052.56 NVNT 2-DH12480Ant131.245.052.56 NVNT 3-DH12402Ant131.355.042.55 NVNT 3-DH12441Ant131.325.042.55 NVNT 3-DH12480Ant131.355.042.55 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page3of65 Duty Cycle NVNT 1-DH1 2402MHz Ant1 Duty Cycle NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page4of65 Duty Cycle NVNT 1-DH1 2480MHz Ant1 Duty Cycle NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page5of65 Duty Cycle NVNT 2-DH1 2441MHz Ant1 Duty Cycle NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page6of65 Duty Cycle NVNT 3-DH1 2402MHz Ant1 Duty Cycle NVNT 3-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page7of65 Duty Cycle NVNT 3-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page8of65 Maximum Peak Conducted Output Power Conditio n ModeFrequenc y(MHz) Antenn a Conducte dPower (dBm) Total Conducte dPower (dBm) Total Conducte dPower (W) Limit Conducted(dB m) Verdic t NVNT 1-DH 1 2402Ant1-2.07-2.070.0006221Pass NVNT 1-DH 1 2441Ant1-1.89-1.890.0006521Pass NVNT 1-DH 1 2480Ant1-2.64-2.640.0005421Pass NVNT 2-DH 1 2402Ant1-1.32-1.320.0007421Pass NVNT 2-DH 1 2441Ant1-1.9-1.90.0006521Pass NVNT 2-DH 1 2480Ant1-2.59-2.590.0005521Pass NVNT 3-DH 1 2402Ant1-0.73-0.730.0008521Pass NVNT 3-DH 1 2441Ant1-1.26-1.260.0007521Pass NVNT 3-DH 1 2480Ant1-1.97-1.970.0006421Pass Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page9of65 Peak Power NVNT 1-DH1 2402MHz Ant1 Peak Power NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page10of65 Peak Power NVNT 1-DH1 2480MHz Ant1 Peak Power NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page11of65 Peak Power NVNT 2-DH1 2441MHz Ant1 Peak Power NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page12of65 Peak Power NVNT 3-DH1 2402MHz Ant1 Peak Power NVNT 3-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page13of65 Peak Power NVNT 3-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page14of65 -20dB Bandwidth ConditionModeFrequency (MHz) Antenna-20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 1-DH12402Ant10.9116/Pass NVNT 1-DH12441Ant10.9186/Pass NVNT 1-DH12480Ant10.9894/Pass NVNT 2-DH12402Ant11.245/Pass NVNT 2-DH12441Ant11.277/Pass NVNT 2-DH12480Ant11.252/Pass NVNT 3-DH12402Ant11.237/Pass NVNT 3-DH12441Ant11.247/Pass NVNT 3-DH12480Ant11.242/Pass Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page15of65 -20dB Bandwidth NVNT 1-DH1 2402MHz Ant1 -20dB Bandwidth NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page16of65 -20dB Bandwidth NVNT 1-DH1 2480MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page17of65 -20dB Bandwidth NVNT 2-DH1 2441MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page18of65 -20dB Bandwidth NVNT 3-DH1 2402MHz Ant1 -20dB Bandwidth NVNT 3-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page19of65 -20dB Bandwidth NVNT 3-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page20of65 Occupied Channel Bandwidth ConditionModeFrequency (MHz)Antenna99% OBW (MHz) NVNT1-DH12402Ant10.84155 NVNT1-DH12441Ant10.86769 NVNT1-DH12480Ant10.86177 NVNT2-DH12402Ant11.1714 NVNT2-DH12441Ant11.1965 NVNT2-DH12480Ant11.1665 NVNT3-DH12402Ant11.1665 NVNT3-DH12441Ant11.1737 NVNT3-DH12480Ant11.1662 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page21of65 OBW NVNT 1-DH1 2402MHz Ant1 OBW NVNT 1-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page22of65 OBW NVNT 1-DH1 2480MHz Ant1 OBW NVNT 2-DH1 2402MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page23of65 OBW NVNT 2-DH1 2441MHz Ant1 OBW NVNT 2-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page24of65 OBW NVNT 3-DH1 2402MHz Ant1 OBW NVNT 3-DH1 2441MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page25of65 OBW NVNT 3-DH1 2480MHz Ant1 Report No.:SZNTT26018477E1-2 SZNTT-TR728-0Page26of65 Band Edge ConditionModeFreque…

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ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrial Zone,FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com Acknowledgement SPECIFICATIONFORAPPROVAL CustomerName CUSTOMERNAME: Productname PRODUCTNAME:L46Circular2.4G/5.8GAntenna CustomerDocumentNumber CUSTOMERP/N: ShengdaElectronicsMaterialNumber SDP/N:SDL46WIFI6SJ300REV:A MANUFACTURER SIGNATURE CUSTOMER SIGNATURE CHECKEDBY: APPROVEDBY: DATE: 2023/2/14 ShenzhenShengdaCommunicationEquipmentCo.,Ltd. ShenzhenAddress:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen;DongguanAddress:16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad, JinfenghuangIndustrialZone,FenggangTown,Dongguan01 telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com Contents ltemDescription 1.---------------------------------------------------------------SpecificationTable 2.--------------------------------------------------FinalProductImage 3.-------------------------------------------------------------- testreport ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrial Zone,FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com 1．1SpecificationTable: MainTechnicalSpecificationsoftheProduct Thekeytechnicalindexes Maintechnicalspecifications FrequencyRa- nge(MHz) 2400-2500/5150-5850 Frequency Range (MHZ) 2400-2500/5150-5850 Characteristicimpedance （Ω） 50Impedance(Ω)50 PeakGain(dBi) 2.5Gain(dBi)2.5 OutputVoltageSt- andingWaveRatio ≤2.2MaxVSWR≤2.2Max CableLength (mm) 300±20LineLLength300±20 CableSpecifications RG174 Cable specification RG174 PolarizationMethod Vertical/HorizontalPolarizationVerticalandhorizontal ConnectionMethod SMAMaleHeadandNeedleConnectorTypeSMAJ-J Physicalproperty PhysicalProperties Materialoftheantennabodyitself ABSAntennaBaseABS Workingtemperature -20°C~+50°COperatingTemp-20°C~+50°C HumidityHumidity95%~100%RH Humidity Humidity95%~100%RH ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,Longgang District,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrialZone, FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.s z sdtx.com 2．FinalProductImage ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,LonggangDistrict, Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrialZone, FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com 3.TestReport 31 .:NetworkanalyzerteststhetypicalVSWR ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,Longgang District,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrialZone, FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com 3.2.DarkRoom2D,3DRadiationPattern ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,LonggangDistrict, Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrialZone, FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com PassiveTestFor2.4G FreqEffiEffiGainGainUHISDHISMaxMin Dire ctiv ity Beamw idth AttHAttV (MHz)(%)(dB) (dBi ) (dBd ) (%)(%)(dB)(dB) (dBi ) (3dB)(dB)(dB) 230056.31-2.492.510.3625.54530.7632.51-15.595.01045.5845.42 235058.07-2.362.440.2925.47732.5892.44-13.844.8045.545.31 240057.27-2.422.330.1824.05633.2162.33-13.664.75045.9745.77 245054.91-2.62.20.0522.51332.3932.2-12.154.81045.5445.4 250057.49-2.42.380.2324.2733.2182.38-12.194.79045.8845.75 255056.94-2.452.280.1326.03730.9012.28-18.664.72045.6545.5 260057.23-2.422.20.0527.92629.3042.2-16.394.62045.9545.8 ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrial Zone,FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrial Zone,FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity, LonggangDistrict,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrial Zone,FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,Longgang District,Shenzhen AddressinDongguan:01,16thFloor,Building1,UrbanWisdomValley,No.19JinpengRoad,JinfenghuangIndustrialZone, FenggangTown,Dongguan telephone:0755-89985492 Fax:0755-89916753 URL:www.szsdtx.com ShenzhenShengdaCommunicationEquipmentCo.,Ltd. Address:Building4,HanguangScienceandTechnologyPark,ZhangbeiChuangye4thRoad,AilianCommunity,LonggangDistrict, Shenzhen Addressi…

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SZNTT-TR838-0Page1of36 Hotline:0755-27889935http://www.ntt-testing.com FCCTESTREPORT FCCID:2ASCB-DH05514G Product: 55-inchPCAPTOUCHWALLMOUNTED AND14OS ModelName:DH055TLB,DH05514G Brand: ReportNo.:SZNTT26018477E1-2 Preparedfor D2GGroupLLC 81CommerceDrive,FallRiver,Massachusetts02720,UnitedStates Preparedby ShenzhenNTTTestingTechnologyCo.,Ltd. 1B,Building2,FactoryBuilding&103,Building3,FactoryBuilding,DayangIndustrial ParkNo.4,IndustrialAvenue,TangweiCommunity,FuhaiSub-district,Bao'anDistrict, ShenzhenCity,China TEL:0755-27889935 ReportNo.:SZNTT26018477E1-2 SZNTT-TR838-0Page2of36 Hotline:0755-27889935http://www.ntt-testing.com 1TESTRESULTCERTIFICATION Applicant’sname: D2GGroupLLC Address: 81CommerceDrive,FallRiver,Massachusetts02720,UnitedStates Manufacture'sname: GUANGZHOUYOUGUANGOPTOELECTRONICSCO.,LTD. Address: No.75,PacificInd.Zone,XintangTown,Zengcheng,Guangzhou, China,511340. Productname: 55-inchPCAPTOUCHWALLMOUNTEDAND14OS Modelname: DH055TLB Additionalmodel: DH05514G Standards: FCCCFR47Part15Section15.247 Testprocedure: ANSIC63.10-2020+Cor.1-2023 KDB558074D0115.247MeasGuidancev05r02 TestDate: Apri.29,2026toMay15,2026 DateofIssue: May21,2026 TestResult: Pass ThisdevicedescribedabovehasbeentestedbyNTT,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonly tothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofNTT,this documentmaybealteredorrevisedbyNTT,personalonly,andshallbenotedintherevisionof thedocument. Preparedby(TestEngineer): ZhaoDi Reviewer(Supervisor): KenWu Approved(Manager): AbelYu ReportNo.:SZNTT26018477E1-2 SZNTT-TR838-0Page3of36 Hotline:0755-27889935http://www.ntt-testing.com Contents Page 1TESTRESULTCERTIFICATION...................................................................................................................2 2TESTSUMMARY............................................................................................................................................5 3TESTFACILITY...............................................................................................................................................6 4GENERALINFORMATION.............................................................................................................................7 4.1GENERALDESCRIPTIONOFE.U.T..........................................................................................................7 4.2CHANNELLIST.......................................................................................................................................8 4.3TESTSETUPCONFIGURATION................................................................................................................9 4.4TESTCONFIGURATION............................................................................................................................9 5EQUIPMENTDURINGTEST........................................................................................................................10 5.1EQUIPMENTSLIST................................................................................................................................10 5.2MEASUREMENTUNCERTAINTY..............................................................................................................12 5.3DESCRIPTIONOFSUPPORTUNITS........................................................................................................12 6CONDUCTEDEMISSION.............................................................................................................................13 6.1E.U.T.OPERATION..............................................................................................................................13 6.2EUTSETUP.........................................................................................................................................13 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).........................................................................13 6.4MEASUREMENTPROCEDURE:...............................................................................................................14 6.5CONDUCTEDEMISSIONLIMIT................................................................................................................14 6.6MEASUREMENTDESCRIPTION...............................................................................................................14 6.7CONDUCTEDEMISSIONTESTRESULT...................................................................................................14 7RADIATEDSPURIOUSEMISSIONS...........................................................................................................17 7.1EUTOPERATION.................................................................................................................................17 7.2TESTSETUP........................................................................................................................................18 7.3SPECTRUMANALYZERSETUP...............................................................................................................20 7.4TESTPROCEDURE...............................................................................................................................20 7.5SUMMARYOFTESTRESULTS...............................................................................................................21 8MAXIMUMPEAKOUTPUTPOWERTEST.................................................................................................29 8.1TESTSTANDARDANDLIMIT..................................................................................................................29 8.2TESTSETUP........................................................................................................................................29 8.3TESTPROCEDURE........................................................................................................................…

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