RVU-ZJ5811Portable thermal printer

FCC Caution 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Rev11/20/07 (SHENZHENZIJIANGELECTRONICSCO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision ConfidentialityRequestregardingapplicationforcertificationofFCCID: RVU-ZJ5811 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitTypeFileName BlockDiagram, Schematics, OperationalDescription BlockDiagram Schematics OperationalDescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. Sincerely, (GongHaiWang)

SHENZHENZIJIANGELECTRONICSCO.,LTD ModelDifference 2020-12-28 EUTNAME:Portablethermalprinter FCCID:RVU-ZJ5811 MODEL:ZJ-5811 POS-5811,ZJ-5810,POS-5810 AllthemodelarethesamecircuitandRFmodule,exceptmodelnamesandcolor. Regards Sincerely Client’ssignature Client’sname/title:GongHaiWang(Manager) Contactinformation/address:4FloorofNo.2BuildingofDonglongxingScience Park,HuaningRoad,DalangStreet,LonghuaDistrictShenzhenChina518110

(SHENZHENZIJIANGELECTRONICSCO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 Date:2020.12.28 SUBJECT:FCCApplicationforFCCID:RVU-ZJ5811 ToWhomItMayConcern: We,theundersigned,herebyauthorizeAlanMeiatShenzhenBCTCTestingCo.,Ltd.on ourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment.Any andallactscarriedoutbyAlanMeiofShenzhenBCTCTestingCo.,Ltd.onourbehalf shallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,the applicant,arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301ofthe Anti-DrugActof1988,21USC853a,andnopartytotheapplicationissubjecttoadenial offederalbenefitspursuanttothatsection. Regards, (GongHaiWang)

ExternalPhotos

Label&labellocation Portablethermalprinter FCCID:RVU-ZJ5811 ThisdevicecomplieswithPart15oftheFCCRules.Operation issubjecttothefollowingtwoconditions:(1)Thisdevicemaynot causeharmfulinterference,and(2)thisdevicemustacceptany interferencereceived,includinginterferencethatmaycauseund esiredoperation.

InternalPhotos Antenna

RFEXPOSUREEVALUATIONMETHOD FCCID:RVU-ZJ5811 SARTestExclusionThresholdsfor100MHz – 6GHzand ≤ 50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. BLE maxpossibleoutputpower(PK,conducted)：0±1dbm 0dBilogarithmictermsconverttonumericresultisnearly1 1dbm=1.26mW 2402MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]1.26/5*√2.402=0.39≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Modulation Frequency (MHz) OutputPower (dBm) MaxAntenna Gain(dBi) GFSK2402 -1.364 0 GFSK 2440 -0.212 0 GFSK 2480 -0.150 0 2440MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=1.26/5*√2.440=0.39≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Conclusion:NoSARisrequired. 2480MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=1.26/5*√2.48=0.40≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm.

No.：BCTC/RF-EMC-005Page: 1 of 44 Edition：A.2 TESTREPORT ShenzhenBCTCTestingCo.,Ltd. ReportNo.: BCTC2012065921E Applicant:SHENZHENZIJIANGELECTRONICSCO.,LTD ProductName:Portablethermalprinter Model/TypeRef.:ZJ-5811 TestedDate:2020-12-18to2020-12-24 IssuedDate:2020-12-24 ReportNo.:BCTC2012065921E No.：BCTC/RF-EMC-005Page: 2 of 44 Edition：A.2 FCCID:RVU-ZJ5811 Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp.Thisresult(s)showninthisreport referonlytothesample(s)tested.WithoutwrittenapprovalofShenzhenBCTCTestingCo.,Ltd,thisreport can’tbereproducedexceptinfull.Thetestedsample(s)andthesampleinformationareprovidedbytheclient. ProductName: Portablethermalprinter Trademark: N/A Model/TypeRef.: ZJ-5811 POS-5811,ZJ-5810,POS-5810 PreparedFor: SHENZHENZIJIANGELECTRONICSCO.,LTD Address: 4FloorofNo.2BuildingofDonglongxingSciencePark,Huaning Road,DalangStreet,LonghuaDistrictShenzhenChina518110 Manufacturer: SHENZHENZIJIANGELECTRONICSCO.,LTD Address: 4FloorofNo.2BuildingofDonglongxingSciencePark,Huaning Road,DalangStreet,LonghuaDistrictShenzhenChina518110 PreparedBy: ShenzhenBCTCTestingCo.,Ltd. Address: 1-2/F.,BuildingB,PengzhouIndustrialPark,No.158,Fuyuan1st Road,Tangwei,FuhaiSubdistrict,Bao'anDistrict,Shenzhen, Guangdong,China SampleReceivedDate: 2020-12-18 SampletestedDate: 2020-12-18to2020-12-24 IssueDate: 2020-12-24 ReportNo.: BCTC2012065921E TestStandards FCCPart15.247 ANSIC63.10-2013 TestResults PASS Remark:ThisisBluetoothBLEradiotestreport. Testedby:Approvedby: KelseyTan/ProjectHandlerZeroZhou/Reviewer ReportNo.:BCTC2012065921E No.：BCTC/RF-EMC-005Page: 3 of 44 Edition：A.2 TABLEOFCONTENT TestReportDeclarationPage 1.VERSION ............................................................................................................................... 5 2.TESTSUMMARY ................................................................................................................. 6 3.MEASUREMENTUNCERTAINTY .................................................................................... 7 4.PRODUCTINFORMATIONANDTESTSETUP ............................................................ 8 4.1ProductInformation ......................................................................................................... 8 4.2TestSetupConfiguration ............................................................................................... 9 4.3SupportEquipment ......................................................................................................... 9 4.4ChannelList ..................................................................................................................... 9 4.5TestMode ....................................................................................................................... 10 4.6Tableofparametersoftextsoftwaresetting ............................................................. 10 5.TESTFACILITYANDTESTINSTRUMENTUSED ..................................................... 11 5.1TestFacility .................................................................................................................... 11 5.2TestInstrumentUsed ................................................................................................... 11 6.CONDUCTEDEMISSIONS .............................................................................................. 13 6.1BlockDiagramOfTestSetup ...................................................................................... 13 6.2Limit ................................................................................................................................. 13 6.3Testprocedure ............................................................................................................... 13 6.4EUToperatingConditions ............................................................................................ 13 6.5TestResult ..................................................................................................................... 14 7.RADIATEDEMISSIONS ................................................................................................... 16 7.1BlockDiagramOfTestSetup ...................................................................................... 16 7.2Limit ................................................................................................................................. 17 7.3Testprocedure ............................................................................................................... 18 7.4EUToperatingConditions ............................................................................................ 20 7.5TestResult ..................................................................................................................... 21 8.RADIATEDBANDEMISSIONMEASUREMENTANDRESTRICTEDBANDSOF OPERATION ........................................................................................................................... 25 8.1BlockDiagramOfTestSetup ...................................................................................... 25 8.2Limit ................................................................................................................................. 25 8.3Testprocedure ............................................................................................................... 26 8.4EUToperatingConditions ............................................................................................ 26 8.5TestResult ..................................................................................................................... 27 9.POWERSPECTRALDENSITYTEST ........................................................................... 28 9.1BlockDiagramOfTestSetup ...................................................................................... 28 9.2Limit ................................................................................................................................. 28 9.3Testprocedure ......…

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ReportNo.:BCTC2012065921E No.：BCTC/RF-EMC-005Page: 42 of 44 Edition：A.2 15.EUTTESTSETUPPHOTOGRAPHS Conductedemissions RadiatedMeasurementPhotos ReportNo.:BCTC2012065921E No.：BCTC/RF-EMC-005Page: 43 of 44 Edition：A.2