FCC ID: APYBSC0005 Electronic paper display

EP-C251 (A3EPC251U_US) Rating Label EP-C251 ELECTRONIC PAPER DISPLAY AFFICHAGE PAPIER LECTRONIQUE PANTALLA DE PAPEL ELECTRNICO 3.0A Max 15/20V SER.No : XXXXXXXXXXX year.month FCC ID: APYBSC0005 IC: 548B-EPC251 Base : White Text : Black Size : 9949 mm

SHARP CORPORATION U.S. Agent Designation for Service of Process -

Certification Attestation Letter 11/22/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: APYBSC0004APYBSC0005 Per section 2.911(d)(7) of the FCC rules, Sharp Corporation (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process:

Company Name: Sharp Electronics Corporation Physical U.S. Company Address: 100 Paragon Dr., Montvale, NJ 07645 Agent name: Steve Petruska Agent Email Address: spetrusk@sharpsec.com FRN: 0003737772 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed:

Designated Agent Signed:

(Required, if different to Applicant):

Signed:

Printed name:

Title:

Company Name:

Date:

FRN Code:

Taihei Ohtsuka Deputy Division Manager of ESG and Quality promotion unit Sharp Corporation November 22, 2023 0005810866 Signed:

Printed name:

Title:

Company Name:

Date:

Steve Petruska Senior Product Safety Engineer Sharp Electronics Corporation November 24, 2023 FRN Code:

0003737772

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

SHARP CORPORATION 11/24/2023 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Mr.Sunny Lu, from Audix Technology (Shenzhen) Co., Ltd. No. 6, Kefeng Road, Science & Technology Park, Nanshan District, Shenzhen, Guangdong, China, to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include 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 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name:Taihei Ohtsuka

SHARP CORPORATION Covered Equipment CertificationAttestation Letter 11/22/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: APYBSC0004 APYBSC0005 Sharp Corporation certifies that 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. Note:If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment. SHARP Corporation certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Signed:

Printed name: Taihei Ohtsuka Title: Deputy Division Manager of ESG and Quality promotion unit Company Name: Sharp Corporation Date: 11/22/2023

SHARP CORPORATION 11/24/2023 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: APYBSC0004APYBSC0005 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commissions Rules and FCC Guidance document 726920, we hereby request confidential treatment of information accompanying this application as outlined below:

PERMANENT LONG-TERM CONFIDENTIALITY:

Schematics Block Diagrams Theory of Operation SHORT TERM CONFIDENTIALITY FOR A PERIOD OF 180 DAYS InternalPhotos ExternalPhotos User Manual Test Set-up Photographs When the device is marketed before the requestednumber of days listed above, the grantee will inform the TCB to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. The above information contains trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Sincerely, Signed:

Printed name: Taihei Ohtsuka Title: Deputy Division Manager of ESG and Quality promotion unit

SHARP CORPORATION SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES Date: September 11, 2023ATTN: FCC Subject: Attestation Letter regarding UNII devices FCC ID: APYBSC0004APYBSC0005, Software security questions and answers per KDB 594280 D02 v01r03:

General Description Describehowanysoftware/firmwareupdatesforelementsthancanaffectthedevicesRF parameters will be obtained, downloaded, validated and installed. For software that is accessedthroughmanufacturerswebsiteordevicesmanagementsystem,describethe different levels of security asappropriate. There is no downloadable software provided by the manufacturer that can modify critical radiotransmitterparameters.AllcriticalparametersareprogrammedinC hipmemoryatthe factory and cannot be modified or overridden by third parties. DescribetheRFparametersthataremodifiedbyanysoftware/firmwarewithoutany hardwarechanges.Aretheseparametersinsomewaylimitedsuchthatanyother software/firmware changes will not allow the device to exceed the authorized RF characteristics?

TherearenoRFparametersthatcanbemodified.AllRFparametersareprogrammedin Chipmemoryatthefactoryandcannotbemodifiedoroverriddenbythirdparties. Describeindetailtheauthenticationprotocolsthatareinplacetoensurethatthesourceof theRF-relatedsoftware/firmwareisvalid.DescribeindetailhowtheRF-relatedsoftwareis protected againstmodification. The answer is same with question 2 DescribeindetailanyencryptionmethodsusedtosupporttheuseoflegitimateRF -related software/firmware. Thefirmwareinthefactoryhasbeenfixedinchip,can'tbechanged,thereisnoneedfor validation.Driverisinbinaryform,itisownclosure,noneedforverification. Foradevicethatcanbeconfiguredasamasterandclient(withactiveorpassivescanning), explainhowthedeviceensurescomplianceforeachmode?Inparticularifthedeviceactsas masterinsomebandofoperationandclientinanother;howiscomplianceensuredineach band ofoperation?

Notapplicable,thisdeviceonlysupportsclientwithoutradardetection.TheRFparameters hasbeenfixedinthewifimodulefirmwareandcannotbealtered,sotheuserhasnowayto break the compliance on the device. Third-Party Access Control ExplainifanythirdpartieshavethecapabilitytooperateaU.S.-solddeviceonanyother regulatorydomain,frequencies,orinanymannerthatmayallowthedevicetooperatein violationofthedevicesauthorizationifactivatedintheU.S. Thirdpartiesdonothavethecapabilitytooperateinanymannerthatisviolationofthe certification in theU.S 1 2 3 4 5 1 V1.0 SHARP CORPORATION Describe,ifthedevicepermitsthird-partysoftwareorfirmwareinstallation,whatmechanisms areprovidedbythemanufacturertopermitintegrationofsuchfunctionswhileensuringthat theRFparametersofthedevicecannotbeoperatedoutsideitsauthorizationforoperationin the U.S. In the description include what controls and/or agreements are in place with providers of third-party functionality to ensure the devices underlying RF parameters are unchanged and how the manufacturer verifies thefunctionality. RFparametersareprogrammedintoChipmemoryatthefactoryandcannotbe reprogrammed or re-flashed by thirdparties. For Certified Transmitter modular devices, describe how the module grantee ensures that hostmanufacturersfullycomplywiththesesoftwaresecurityrequirementsforU-NIIdevices. If the module is controlled through driver software loaded in the host, describe how the driversarecontrolledandmanagedsuchthatthemodulartransmitterRFparametersarenot modified outside the grant ofauthorization. TherearenoRFparametersthatcanbemodified.AllRFparametersareprogrammedin Chip memory at the factory and cannot be modified or overridden by third parties. The moduleisnotcontrolledbydriversoftwareonthehostandcannotoverridecriticalRF parameters stored in module Chip memory. USER CONFIGURATION GUIDE DescribetheuserconfigurationspermittedthroughtheUI.Ifdifferentlevelsofaccessare permitted for professional installers, system integrators or end-users, describe the differences. No UI provided. a)Whatparametersareviewableandconfigurablebydifferentparties?

RF ON/OFF Search WiFi Access point Connect WiFi access point b)Whatparametersareaccessibleormodifiablebytheprofessionalinstallerorsystem integrators?

All parameters described in a are accessible and modifiable by the professional installer 1)Aretheparametersinsomewaylimited,sothattheinstallerswillnotenterparametersthat exceed thoseauthorized?

Themodulemicro-codereadstheparametersfromthemoduleChipmemory.These parameterscannotbemodifiedoroverriddenbySWdrivers. 2)Whatcontrolsexistthattheusercannotoperatethedeviceoutsideitsauthorizationinthe U.S.?

All parameters described in a, user can not operate the device outside its authorization in the us. c) What parameters are accessible or modifiable by the end-user?

None 1) Are the parameters in some way limited, so that the installers will not enter parameters that exceed those authorized?

Themodulemicro-codereadstheparametersfromthemoduleChipmemory.These parameterscannotbemodifiedoroverriddenbySWdrivers. 2)Whatcontrolsexistsothattheusercannotoperatethedeviceoutsideitsauthorizationin theU.S.?

All parameters described in a, user can not operate the device outside its authorization in the us. d) Is the country code factory set? Can it be changed in the UI?

Default country code is set in the factory and no UI is provided for modification. 1)Ifitcanbechanged,whatcontrolsexisttoensurethatthedevicecanonlyoperatewithin its authorization in theU.S.?

ProgrammedfordefaultmodewhichisalwaysFCCcompliant.Alwayssetfordefaultforall start-

ups,resets,timeoutsorotherhostornetworkevents. 2 3 1 V1.0 SHARP CORPORATION 2 3 4 e)Whatarethedefaultparameterswhenthedeviceisrestarted?

Always FCCcompliant Cantheradiobeconfiguredinbridgeormeshmode?Ifyes,anattestationmayberequired. FurtherinformationisavailableinKDBPublication905462D02. No, it can't work in the bridge or the mesh mode Foradevicethatcanbeconfiguredasamasterandclient(withactiveorpassivescanning), ifthisisuserconfigurable,describewhatcontrolsexist,withintheUI,toensurecompliance foreachmode.Ifthedeviceactsasamasterinsomebandsandclientinothers,howisthis configured to ensurecompliance?

It can only work in client mode, and cannot be configured. Foradevicethatcanbeconfiguredasdifferenttypesofaccesspoints,suchaspoint -to-point or point-to-multipoint, and use different types of antennas, describe what controls exist to ensure compliance with applicable limits and the proper antenna is used for each mode of operation. (See Section15.407(a)) Thisdeviceisnotanaccesspoint. Signature:

Printed Name:Sunny Lu Position: Manager Company Name: Audix Technology (Shenzhen) Co., Ltd. V1.0