2A54R-IFDXSmart interactive whiteboard

Smart Interactive Whiteboard User's Manual V1.0.0 I Foreword General This manual introduces the functions and operations of the smart interactive whiteboard (hereinafter referred to as "the whiteboard"). Read carefully before using the whiteboard, and keep the manual safe for future reference. Safety Instructions The following signal words might appear in the manual. Signal Words Meaning Indicates a medium or low potential hazard which, if not avoided, could result in slight or moderate injury. Indicates a potential risk which, if not avoided, could result in property damage, data loss, reductions in performance, or unpredictable results. Provides additional information as a supplement to the text. Revision History Version Revision Content Release Time V1.0.0 First release. June 2023 Privacy Protection Notice As the device user or data controller, you might collect the personal data of others such as their face, fingerprints, and license plate number. You need to be in compliance with your local privacy protection laws and regulations to protect the legitimate rights and interests of other people by implementing measures which include but are not limited: Providing clear and visible identification to inform people of the existence of the surveillance area and provide required contact information. About the Manual ● The manual is for reference only. Slight differences might be found between the manual and the product. ● We are not liable for losses incurred due to operating the product in ways that are not in compliance with the manual. ● The manual will be updated according to the latest laws and regulations of related jurisdictions. For detailed information, see the paper user’s manual, use our CD-ROM, scan the QR code or visit our official website. The manual is for reference only. Slight differences might be found between the electronic version and the paper version. ● All designs and software are subject to change without prior written notice. Product updates might result in some differences appearing between the actual product and the manual. Please contact customer service for the latest program and supplementary documentation. ● There might be errors in the print or deviations in the description of the functions, operations and technical data. If there is any doubt or dispute, we reserve the right of final explanation. ● Upgrade the reader software or try other mainstream reader software if the manual (in PDF II format) cannot be opened. ● All trademarks, registered trademarks and company names in the manual are properties of their respective owners. ● Please visit our website, contact the supplier or customer service if any problems occur while using the device. ● If there is any uncertainty or controversy, we reserve the right of final explanation. III Important Safeguards and Warnings This section introduces content covering the proper handling of the whiteboard, hazard prevention, and prevention of property damage. Read carefully before using the whiteboard, and comply with the guidelines when using it. Storage Requirements ● Stably put the whiteboard onto a support platform that is strong enough to prevent the whiteboard from falling. ● Do not place the whiteboard in a place exposed to sunlight or near heat sources. ● Store the whiteboard under allowed humidity (10%–90% (RH)) and temperature (–10 °C to +50 °C, or +14 °F to +122 °F) conditions. Installation Requirements ● Use the wall mount bracket with yellow labels on it. Installation and maintenance must be performed by qualified professionals. ● Do not install the whiteboard in a place exposed to sunlight or near heat sources. ● Keep the whiteboard away from dampness, dust, and soot. ● Install the whiteboard on a stable surface to prevent it from falling. ● Install the whiteboard in a well-ventilated place, and do not block its ventilation. ● The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no higher than PS2. Please note that the power supply requirements are subject to the device label. ● The whiteboard is a class I electrical appliance. Make sure that the power supply of the whiteboard is connected to a power socket with protective earthing. ● The appliance coupler is a disconnection device. Keep it at a convenient angle when using it. ● Only applicable for use in altitudes below 5,000 meters. Operation Requirements ● High voltage inside the whiteboard. Do not disassemble the whiteboard without a qualified professional present to avoid the risk of being exposed to danger. ● Improper use of the battery might result in a fire or explosion. ● Replace unwanted batteries with new batteries of the same type and model. ● Use the standard power adapter. We will assume no responsibility for any problems caused by the use of a nonstandard power adapter. ● Use the power cords that are recommended for the region and conform to the rated power specifications. ● Make sure all cables are connected correctly before plugging the whiteboard into the power. Do not overload the power socket or pull the power code. Otherwise, it might cause fire or electric shock. IV ● Do not ingest battery. Chemical Burn Hazard. This product contains a coin cell battery. If the coin cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death. ● Keep new and used batteries away from children. If the battery compartment does not close securely, stop using the product and keep it away from children. ● If you think batteries might have been swallowed or places inside any part of the body, seek immediate medical attention. ● The whiteboard can run continuously for up to 16 hours each day. Please do not keep it running for longer than this time, otherwise the life of the screen will be affected. ● Do not drop or splash liquid onto the whiteboard, and make sure that there is no object filled with liquid on the whiteboard to prevent liquid from flowing into it. ● Operate the whiteboard …

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A02 Rev.A/0 Page: 1 of 8 Appendix External Photos for SZCR2306001989AT FCC ID: 2A54R-IFDX EUT Constructional Details (EUT Photos) HN-IFDX86 HN-IFDX65 - End of the Appendix -

DHI-LPH65-MT410-B 1.0.01.14.11527 00000000GR00001 P/N： S/N： MADE IN CHINA Smart interactive whiteboard No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China ZHEJIANG DAHUA VISION TECHNOLOGY CO.,LTD. 100-240V ,1.5A,50/60Hz FCB69D6CCB2AMAC： Label Location 105mm 90mm CLEF65U XXXXXXXXXXXS/N： MADE IN CHINA Smart interactive whiteboard 100-240V ,3A,50/60Hz P/N： 1.0.01.14.11707 This device complies with part 15 of the FCC ules. 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. UPC FCC ID2A54R-IFDX IC11712A-IFDX

DHI-LPH65-MT410-B 1.0.01.14.11527 00000000GR00001 P/N： S/N： MADE IN CHINA Smart interactive whiteboard No.1199, Bin'an Road, Binjiang District, Hangzhou, P.R. China ZHEJIANG DAHUA VISION TECHNOLOGY CO.,LTD. 100-240V ,1.5A,50/60Hz FCB69D6CCB2AMAC： Label Location 105mm 90mm CLEF86U 9E0112BYGR00001S/N： FCC ID2A54R-IFDX IC11712A-IFDX Smart interactive whiteboard 100-240V ,5A,50/60Hz P/N： 1.0.01.14.11709 This device complies with part 15 of the FCC ules. 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. UPC MADE IN CHINA

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 1 of 30 Appendix Internal Photos for SZCR2306001989AT FCC ID: 2A54R-IFDX SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 2 of 30 EUT Constructional Details (EUT Photos) HN-IFDX86 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 3 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 4 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 5 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 6 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 7 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 8 of 30 Module：NXP88W8997 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 9 of 30 Module：SKIWB800DS2.1 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 10 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 11 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 12 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 13 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 14 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 15 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 16 of 30 HN-IFDX65 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 17 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 18 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 19 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 20 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 21 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 22 of 30 Module：NXP88W8997 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 23 of 30 Module：SKIWB800DS2.1 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 24 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 25 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 26 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 27 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 28 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 29 of 30 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-A03 Rev.A/0 Page: 30 of 30 - End of the Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198906 Page: 1 of 13 Keny Xu EMC Laboratory Manager RF EXPOSURE EVALUATION REPORT Application No.: SZCR2306001989AT Applicant: Guangzhou Changjia Electronic Co., Ltd. Address of Applicant: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Manufacturer: Guangzhou Changjia Electronic Co., Ltd. Address of Manufacturer: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Factory: Guangzhou Changjia Electronic Co., Ltd. Address of Factory: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Equipment Under Test (EUT): EUT Name: Smart interactive whiteboard Model No.: HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)   Please refer to section 3.2 of this report which indicates which model was actually tested and which were electrically identical. FCC ID: 2A54R-IFDX Standard(s) : FCC Rules 47 CFR §2.1091 KDB 447498 D04 interim General RF Exposure Guidance v01 Date of Receipt: 2023-06-26 Date of Evaluation: 2023-06-28 to 2023-07-25 Date of Issue: 2023-07-27 Evaluation Result: Pass* * In the configuration evaluated, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198906 Page: 2 of 13 Revision Record Version Chapter Date Modifier Remark 01 2023-07-27 Original Authorized for issue by: Frank Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198906 Page: 3 of 13 2 Contents Page 1 Cover Page ................................................................................................................................................ 1 2 Contents .................................................................................................................................................... 3 3 General Information .................................................................................................................................. 4 3.1 General Description of E.U.T. ............................................................................................................ 4 3.2 Details of E.U.T. ................................................................................................................................. 4 3.3 Separation Distance ........................................................................................................................... 8 3.4 Test Location ...................................................................................................................................... 8 3.5 Test Facility ........................................................................................................................................ 8 3.6 Deviation from Standards ................................................................................................................... 8 3.7 Abnormalities from Standard Conditions ........................................................................................... 8 4 FCC Radiofrequency radiation exposure limits .................................................................................... 9 4.1 Blanket 1 mW Blanket Exemption ...................................................................................................... 9 4.2 MPE-based Exemption ...................................................................................................................... 9 4.3 SAR-based Exemption ..................................................................................................................... 10 5 Measurement and Calculation ............................................................................................................... 12 5.1 Maximum transmit power ................................................................................................................. 12 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198906 Page: 4 of 13 3 General Information 3.1 General Description of E.U.T. Product Type: Portable device Mobile device Fixed device 3.2 Details of E.U.T. Power Supply: Input: 100-240Vac,50/60Hz Cable(s): AC cable:150cm Unshielded For BT (For Module：NXP88W8997): Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Modulation Type: GFSK, pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Antenna Type: PIFA Antenna Antenna Gain: 1.82 dBi For BLE (For Module：NXP88W8997): Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Antenna Type: PIFA Antenna Antenna Gain: 1.82 dBi For 2.4G WIFI (For Module：SKIWB800DS2.1) Operation Frequency: 802.11b/g/n(HT20)/ax(HEW20): 2412MHz to 2462MHz; 802.11n(HT40)/ax(HEW40): 2422MHz to 2452MHz Modulation Type: 802.11b: DSSS (CCK, DQPSK, DBPSK); 802.11g/n: OFDM (64QAM, 16QAM, QPSK, BPSK); 802.11ax: OFDMA (BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM) Number of Channels: 802.11b/g/n(HT20)/ax(HEW20):11; SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198906 Page: 5 of 13 802.11n(HT40)/ax(HEW40):7 Channel Spacing: 5MHz Antenna Type: PIFA Antenna Antenna Gain: 2.45 dBi For 2.4G WIFI (For Module：NXP88W8997) Operation Frequency: 802.11b/g/n(HT20): 2412MHz to 2462MHz; 802.11n(HT40): 2422MHz to 2452MHz Modulation Type: 802.11b: DSSS (CCK, DQPSK, DBPSK); 802.11g/n: OFDM (64QAM, 16QAM, QPSK, BPSK…

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SPECIFICATION FOR APPROVAL PRODUCT NAME: 2.4G/5.8G An tenna Electronic Material Number UB P/N: UB01C500P3D2715A REV: A Version Revision Record: releases proposer dates revised record V-A March 27, 2023 first draft (of writing) MANUFACTURER SIGNATURE CUSTOMER SIGNATURE CHECKED BY: APPROVED BY: DATE: 2022/02/25 Address: Building 79, New Sun Industrial City, Lincun Community, Tangxia Town, Dongguan City (Dongguan Company) Room 106, Building 3, LETONG Technology Park, No. 500 Qiuyi Road, Binjiang District, Hangzhou (Hangzhou Company) Room 106, Building A, Xinzheng Industrial Park, No. 57 Liuxian Second Road, Bao'an District, Shenzhen (Shenzhen Company) Tel：0769-81777126 Fax：0769-81777125 Website: www.ubuant.com 1 specification sheet Band 2400~2500MHz&5150-5850Mhz Typology PIFA Arts and crafts PCB Sizes 99.5*20*1mm Characteristic impedance 50Ω Polarize linear polarization VSWR < 3 Average Efficiency 22.36% Orientation omnidirectional antenna Active input passive 2 size 3.1 Product Picture 4.1 Passive test 4.1.1 Set up 4.1.2 Return Loss Frequency （MHz） 2400 2450 2500 5150 5500 5850 Return Loss （dB） -13.44 -16.36 -7.19 -5.44 -11.67 -5.98 Frequency / MHz Efficiency / dB Efficiency / % Gain/ dB 2400 -6.1 24.53 -0.02 2410 -6.64 21.68 -0.32 2420 -6.88 20.52 -0.34 2430 -6.59 21.94 0.26 2440 -6.78 20.99 0.61 2450 -6.41 22.84 1.04 2460 -6.22 23.88 1.52 2470 -6.06 24.77 1.82 2480 -5.92 25.59 1.82 2490 -5.58 27.67 1.75 2500 -5.84 26.06 1.06 5150 -7.21 19.01 0.03 5200 -6.87 20.57 -1.17 Frequency / MHz Efficiency / dB Efficiency / % Gain/ dB 5250 -6.93 20.28 1.03 5300 -6.58 21.98 0.51 5350 -7.08 19.59 1.19 5400 -7.11 19.45 -0.08 5450 -6.49 22.44 0.48 5500 -6.08 24.66 0.86 5550 -6.87 20.55 -1.07 5600 -7.23 19.95 -0.95 5650 -6.98 20.04 -1.47 5700 -7.37 18.31 -1.04 5750 -7.18 19.14 -0.98 5800 -7.35 18.42 -0.07 5850 -7.39 18.25 -0.31 4.1.3 Test Data For Ant 1 Frequency / MHz Efficiency / dB Efficiency / % Gain/ dB 2400 -7.47 17.91 -1.78 2410 -7.08 19.59 -1.52 2420 -6.67 21.53 -1.2 2430 -6.62 21.78 -1.11 2440 -6.67 21.53 -1.07 2450 -6.17 24.15 -0.4 2460 -5.91 25.64 0.12 2470 -5.73 26.92 0.48 2480 -5.69 26.98 0.27 2490 -5.49 28.25 0.32 2500 -5.13 30.69 0.5 5150 -6.38 23.04 1.37 5200 -5.98 25.26 1.39 Frequency / MHz Efficiency / dB Efficiency / % Gain/ dB 5250 -5.69 26.95 1.75 5300 -5.67 27.13 2.2 5350 -6.32 23.31 1.16 5400 -6.96 20.15 0.24 5450 -5.54 27.95 2.19 5500 -5.26 29.8 2.9 5550 -6.35 23.46 1.53 5600 -6.61 21.85 0.73 5650 -6.37 23.09 0.95 5700 -6.27 23.63 0.61 5750 -6.12 24.57 0.61 5800 -6.37 23.09 1.09 5850 -7.08 19.58 2.44 For Ant 2 3D for ANT-1 2500Mhz 5500Mhz Phi 0 Phi 90 Theta 90 3D for ANT-2 2500Mhz 5500Mhz Phi 0 Phi 90 Theta 90

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198903 Page: 1 of 87 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2306001989AT Applicant: Guangzhou Chang Jia Electronic Co., Ltd. Address of Applicant: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Manufacturer: Guangzhou Chang Jia Electronic Co., Ltd. Address of Manufacturer: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Factory: Guangzhou Chang Jia Electronic Co., Ltd. Address of Factory: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Equipment Under Test (EUT): EUT Name: Smart interactive whiteboard Model No.: HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)   Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. FCC ID: 2A54R-IFDX Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2023-06-26 Date of Test: 2023-06-28 to 2023-07-25 Date of Issue: 2023-07-27 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198903 Page: 2 of 87 Revision Record Version Chapter Date Modifier Remark 01 2023-07-27 Original Authorized for issue by: Frank Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198903 Page: 3 of 87 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Conducted Peak Output Power ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198903 Page: 4 of 87 Declaration of EUT Family Grouping: Model No.: HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A- Z or 0-9 or blank or - , indicates different client). HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A- Z or 0-9 or blank or -, indicates different client) Only the model HN-IFDX86 was fully tested, and the model: HN-IFDX65 was tested these items (Radiated Spurious Emissions Below 1GHz, Conducted Emissions at Mains Power Port (150kHz- 30MHz), since according to the declaration from the applicant, the electrical circuit design, PCB layout, components used, internal wiring and functions were identical for all the above models, with only difference as follows: Model No. Difference HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) only difference on model No. only difference on model No., the screen size and the power main board. HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) only difference on model No. For Model No. ：HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)，only difference on model No.. For Model No. ：HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)，only difference on model No.. For Model No. ：HN-IFDX86 and HN-IFDX65，only difference on model No., the screen size and the power main board.. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198903 Page: 5 of 87 3 Contents Page 1 Cover Page ................................................................................................................................................ 1 2 Test Summary ........................................................................................................................................... 3 3 Contents .................................................................................................................................................... 5 4 General Information .................................................................................................................................. 7 4.1 Details of E.U.T. ................................................................................................................................. 7 4.2 Environment Parameter ............................................................................................…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198904 Page: 1 of 294 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2306001989AT Applicant: Guangzhou Changjia Electronic Co., Ltd. Address of Applicant: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Manufacturer: Guangzhou Changjia Electronic Co., Ltd. Address of Manufacturer: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Factory: Guangzhou Changjia Electronic Co., Ltd. Address of Factory: No.139 Zhouxing Street, Dongchong Town, Nansha District, Guangzhou, China Equipment Under Test (EUT): EUT Name: Smart interactive whiteboard Model No.: HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client)   Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. FCC ID: 2A54R-IFDX Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2023-06-26 Date of Test: 2023-06-28 to 2023-07-25 Date of Issue: 2023-07-27 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198904 Page: 2 of 294 Revision Record Version Chapter Date Modifier Remark 01 2023-07-27 Original Authorized for issue by: Frank Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198904 Page: 3 of 294 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Conducted Peak Output Power ANSI C63.10 (2013) Section 11.9.2 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/0 Aug01,2022 Report No.: SZCR230600198904 Page: 4 of 294 Declaration of EUT Family Grouping: Model No.: HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A- Z or 0-9 or blank or - , indicates different client). HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A- Z or 0-9 or blank or -, indicates different client) Only the model HN-IFDX86 was fully tested, and the model: HN-IFDX65 was tested these items (Radiated Spurious Emissions Below 1GHz, Conducted Emissions at Mains Power Port (150kHz- 30MHz), since according to the declaration from the applicant, the electrical circuit design, PCB layout, components used, internal wiring and functions were identical for all the above models, with only difference as follows: Model No. Difference HN-IFDX86, CLEF86U, IFDX86, XXXXXXXX86XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) only difference on model No. only difference on model No., the screen size and the power main board. HN-IFDX65, CLEF65U, IFDX65, XXXXXXXX65XXXXXXXX (Where “X” can be any alphanumeric of A-Z or 0-9 or blank or -, indicates different client) only difference on model …

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