2AFWN-EL042K3WRAESL Label

1 1 General Description NEWTON S-Label product is a part of the SOLUM Electronic Shelf Label (ESL) System, which includes NEWTON S-Label, NEWTON Gateway, and Remote Controller. The ESL System electronically displays customer content (i.e. price, product, and promotion information) on the S- Labels, which have traditionally been printed or written on paper in places such as retail markets and warehouses. NEWTON S-Label wirelessly receives data from the S-Gate and updates the display with the new information provided. NEWTON S-Label is based on Bluetooth Low Energy (BLE) for low power wireless communication applications. It consists of an RF transceiver, RF circuitry and the ARM Cortex M3 MCU offering BLE based network protocol, MAC protocol and other peripheral devices. Figure 1. ESL System 1.1 Features - Display: E-Paper Display (EPD) Active Type - Sizes:”,4.2”, - Display Color: BW (Black, White) / BWR (Black, White, Red) / BWY (Black, White, Yellow) - Wireless Frequency: 2.4 GHz Unlicensed ISM band - Communication Protocol: BLE physical layer with SOLUM proprietary protocol - Battery operated low power consumption - NFC (13.56MHz): Felica ® NFC Forum Type 3 - 7 color LEDs - Up to 7 page display screens - RoHS compliant 1.2 Typical Applications - Retail industry with electronic displays, platforms, solutions and services - Intelligently communicating, managing, and optimizing price and product informations - Warehouse & factory picking labels 1.3 Appearance Figure 2. NEWTON S-Label 2 Specification 2.1 Product Specification Item Description Label Sizes 4.2”: 98.1 x 83.8 x 14.5mm / 3.8 x 3.2 x 0.5in Display Sizes 4.2”: 400 x 300 Pixel (120dpi) / 84.8 x 63.6mm / 3.3 x 2.5in Label Weight 4.2”: 83.0g / 2.9oz Battery CR2450 2pcs: 4.2”, Housing Bezel Color White or Black (custom color option available) Functional Buttons 2 Buttons LED 7 colors (Red, Green, Blue, Yellow, Cyan, Magenta, White) Usable Pages 7pages: 4.2” Communication 2.4 GHz Unlicensed ISM band BLE physical layer with SOLUM proprietary protocol Communication Distance Radius 30m / 98ft Operating Temperature Normal Temperature Labels BWR: 0°C ~ 40°C / 32°F~104°F (@45%~70% RH) BWY: 0°C ~ 30°C / 32°F~86°F (@45%~70% RH) Storage Temperature All Labels: 0°C~40°C / 32°F~104°F (@45%~70% RH) 2.2 Radio (RF) Specification Item Parameter Specification Unit Condition Min Typ Max Tx Tx Power -3 0 4 dBm [Carrier Frequency Offset and Drift] -75 0 75 kHz Tx Current - 8 mA Total current at max Tx Power Rx Receiver Sensitivity -85 - - dBm PER < 5% 2.3 NFC Specification Item Parameter Specification Unit Min Typ Max NFC Read Distance - 20 - mm - 0.7 - in 2.4 Mechanical Drawing Dimension 4.2” Model (Unit: mm) Figure 8. 4.2” Mechanical Dimension 2.4.1 Figure 13. Product and MAC Labels Product information is indicated on the sticker label of the S-Labels. The information consists of MODEL (model name), MFD (manufacturing date), S/N (serial number), MAC (MAC address), CE certification mark, FCC ID and Manufacturer (SOLUM). 1) 3V 0.1A, Model Name: EL-①②③K3④⑤⑥ (i.e. EL016K3WRA) - EL: Label - ① ② ③: Label Display size 016=1.6” 029=2.9” . - ④: Label Case Color W - WHITE B – BLACK C - GRAY . - ⑤ Label Display-Color M - Mono Label (BW) R - Red Color Label (BWR) Y - Yellow Color Label (BWY) . - ⑥: Label Type (NFC, LED, etc.) Freezer Label Red Color Label Yellow Color Label (BW) (BWR) (BWY) WHITE WHITE BLACK WHITE BLACK 4.2" EL042K3WRA EL042K3BRA EL042K3WYA EL042K3BYA 2) MFD: (Month).(Date).(Year) i.e. JAN.26.2020 3) S/N: Serial Number Information (See Section 2.5.1) 3 Product Handling Precautions Provisions should be made to protect against any damage to the product caused by improper handling. The purchaser assumes any responsibility for damage to the product caused by improper handling. It is highly recommended that the product should be installed within 3 months from the date of arrival into the logistics hub. The recommended storage environment is 0°C~40°C / 32~104 °F, 45%- 70% RH. 3.1 Usage Environment Take extra cautions when using this RF device in the vicinity of other electronic devices and appliances. Most electronic devices and appliances use electromagnetic waves. Electromagnetic waves emitted by this RF device can affect other electronic devices and appliances. If using the device in an explosion hazard area, follow all safety regulations, instructions, and signals. 3.2 Storage and Use  Moisture and liquids can damage internal parts and circuit boards if allowed to enter into the device itself.  Do not place or store the product on a sloped surface. The product may slide and fall off the surface and become damaged.  Use the product in temperatures ranges of 0°C~40°C/32~104°F(BWR), 0°C~30°C/32~86°F (BWY), or -25°C~0°C/-13~32°F(Freezer). Parts and circuits may be damaged if operated or stored in extreme temperature.  The display panel needs extra care during handling. - Do not apply any impacts on the e-Paper display as it is fragile. - Continuous exposure to excessive moisture (over 70% RH) or UV shortens display lifetime. - Ghosting image may appear in temperature conditions of less than 15°C/59°F for normal tags and -25°C/ -13°F for freezer tags. (If ΔL* >2, we call it ghosting phenomenon)  Avoid areas with strong magnetism or subject to magnetism. Contact between the device and a magnetic object can lead to malfunctions.  Do not place the product near heat-producing kitchen appliances like a stove or a microwave or in the vicinity of highly pressurized containers.  External impact to the product, such as from being dropped, can damage the product.  Twisting and bending the product can damage the exterior casing and the internal components.  If this product operates abnormally while removing battery or replacing battery, it needs to be discharged by contacting the battery terminals (+) and (-) in the product.  This product uses the 2.4GHz frequency band for the wireless communication network. Radio communications can be limited or affected…

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Rev 11/20/07 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID : 2AFWN-EL042K3WRA Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block diagram Schematics Schematics_PCB Layout Parts list Operational description Block diagram(2AFWN-EL042K3WRA).pdf Schematics(2AFWN-EL042K3WRA).pdf Schematics_PCB Layout(2AFWN-EL042K3WRA).pdf Part list(2AFWN-EL042K3WRA).pdf Operational description(2AFWN-EL042K3WRA).pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date : September 21, 2022 SUBJECT: FCC Application for (FCC ID : 2AFWN-EL042K3WRA) To Whom It May Concern: We, the undersigned, hereby authorize Young-taek, Lee at CTK on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by CTK on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com EUT External Photographs CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Label Photographs

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com EUT Internal Photographs CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com [Antenna]

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Page 1 of 2 RF EXPOSURE EVALUATION FCC ID : 2AFWN-EL042K3WRA Standard Requirement The following FCC Rule Parts and procedures are applicable : Part 1.1310 Radiofrequency radiation exposure limits Part 2.1091 Radiofrequency radiation exposure evaluation : Mobile device KDB447498 D01 v06 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies Table 1 below sets forth limits for Maximum Permissible Exposure (MPE) to radiofrequency electromagnetic fields. Table 1—Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *100 6 3.0-30 1842/f 4.89/f *900/f 2 6 30-300 61.4 0.163 1.0 6 300-1,500 f/300 6 1,500-100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 30 1.34-30 824/f 2.19/f *180/f 2 30 30-300 27.5 0.073 0.2 30 300-1,500 f/1500 30 1,500-100,000 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Page 2 of 2 MPE calculation S = EIRP / (4πR 2 ) Where S : Power density EIRP : P x G P : Maximum transmitter power G : Antenna gain R : distance to the centre of radiation of the antenna FCC-MPE Limits 1 mW/cm 2 EUT RF Exposure P : 3.50 dBm (2.239 mW) G : 1.64 dBi (x1.459) R : 20 cm S = 0.00065 mW/cm 2 Conclusion This confirms compliance to the required Radio frequency radiation exposure limit.

ART SIGNAL ANTENNA TOTAL SOLUTION ART SIGNAL Company _ Antenna Total Solution ( ART - S 2022) Ver.1 2020 INDEX ANTENNA TOTAL SOLUTION ART SIGNAL Company _ Antenna Total Solution ( ART-S 2022) . 2.4G Antenna Test Data Ver.1 2022 SOLUM M3 4.2inch 2.4G Antenna Test Data - Network & 3D gain & 3D Radiation Pattern ART SIGNAL Company _ Antenna Total Solution ( ART-S 2022) Ver.1 2022 3D gain 1 2 3 4 5 Frequency [MHz] 2400 2420 2440 2460 2485 Efficiency [dB] -1.69 -1.45 -1.16 -1.08 -1.12 Efficiency [%] 67.7 71.6 76.6 78.0 77.2 Peak Gain [dB] 2.75 2.99 3.36 3.55 3.78 Directivity [dB] 4.45 4.44 4.52 4.63 4.90 Minimum Gain [dB] -11.57 -12.88 -13.74 -13.72 -13.85 SOLUM M3 4.2inch 2.4G ANT DATA - Network & 3D gain VSWR Picture ART SIGNAL Company _ Antenna Total Solution ( ART-S 2022) Ver.1 2022 2400 2420 2440 2460 2485 3D Radiation Pattern SOLUM M3 4.2inch 2.4G ANT DATA – 3D Radiation Pattern ART SIGNAL Company _ Antenna Total Solution ( ART-S 2022) Ver.1 2022 Measurement procedure 1. Network Analyzer → VSWR measurement → 3D Gain Test measurement Measuring equipment 2. E5071B Agilent 8753ES Agilent Signature : Dongkyu Hwang place : ART SIGNAL Co.,LTD. 1008-A, Woolim Lion’s Valley 2 nd , 146-8, Sangdaewon-dong, Jungwon-gu, Seongnam-si, Gyeonggi-do, Korea. ART SIGNAL ANTENNA TOTAL SOLUTION ART SIGNAL Company _ Antenna Total Solution ( ART-S 2022) Head Office : A-1008, Woolim Lion’s Vally 2 nd ) 14, Sagimakgol-ro 45beon-gil, Jungwon-gu , Seongnam-si, Gyeonggi-do, KOREA | T. 0082-70-4414-7188 F. 0082-31-734-7188 | We make the world ‘s best companies. A leader in ANTENNA. Ver.1 2022

TEST REPORT CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2022-02458-1 Page (1) / (27) Pages [QF-QP15-07] Ver.01 R101 1. Applicant ◦ Name : SOLUM CO.,LTD. ◦ Address : 4,5,6th F, 357, Guseong-ro, Giheung-gu, Gyeonggi-do, Yongin-si, Republic of Korea ◦ Date of Receipt : 2022-08-04 2. Manufacturer ◦ Name #1 : SOLUM CO.,LTD. ◦ Address #1 : 4,5,6th F, 357, Guseong-ro, Giheung-gu, Gyeonggi-do, Yongin-si, Republic of Korea ◦ Name #2 : SOLUM VINA CO., LTD ◦ Address #2 : Plot B3, Ba Thien 2 Industrial park, Thien Ke Ward, Binh Xuyen District, Vinh Phuc Province, 281200., People's Republic of Vietnam 3. Use of Report : For FCC Certification & Canadian Certification 4. Test Sample / Model : ESL Label / EL042K3WRA 5. Date of Test : 2022-08-08 to 2022-10-25 6. Test Standard(method) used : FCC 47 CFR part 15 subpart C 15.247, ANSI C63.10-2013, RSS-247, RSS-Gen 7. Testing Environment : Temp.: (23 ± 1) °C, Humidity: (51 ± 3) % R.H. 8. Test Results : Compliance 9. Location of Test : Permanent Testing Lab On Site Testing (Address : 221beon-gil, Cheoin-gu, yongin-si, Gyeonggi-do, Republic of Korea) The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This report cannot be reproduced or copied without the written consent of CTK. Approval Tested by Bong-seok Kim: (Signature) Technical Manager Young-taek Lee: (Signature) Remark. This report is not related to KOLAS accreditation and relevant regulation. 2022-11-15 CTK Co., Ltd. CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2022-02458-1 Page (2) / (27) Pages [QF-QP15-07] Ver.01 R101 REPORT REVISION HISTORY Date Revision Page No 2022-10-31 Issued (CTK-2022-02458) all 2022-11-15 Issued (CTK-2022-02458-1) ( Add channel numbers) all This report shall not be reproduced except in full, without the written approval of CTK Co., Ltd. This document may be altered or revised by CTK Co., Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by CTK Co., Ltd. will constitute fraud and shall nullify the document. CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2022-02458-1 Page (3) / (27) Pages [QF-QP15-07] Ver.01 R101 CONTENTS 1. General Product Description ....................................................................................... 4 1.1 Applicant Information ........................................................................................ 4 1.2 Product Information ........................................................................................... 4 1.3 Peripheral Devices ............................................................................................. 4 2. Facility and Accreditations .......................................................................................... 5 2.1 Laboratory Accreditations and Listings .................................................................. 5 2.2 Calibration Details of Equipment Used for Measurement .......................................... 5 3. Test Specifications .................................................................................................... 6 3.1 Standards ........................................................................................................ 6 3.2 Mode of operation during the test ........................................................................ 6 3.3 Maximum Measurement Uncertainty .................................................................... 6 4. Technical Characteristic Test ....................................................................................... 7 4.1 6dB Bandwidth & 99% Bandwidth ........................................................................ 7 4.2 Maximum peak Conducted Output Power .............................................................. 9 4.3 Power Spectral Density .................................................................................... 11 4.4 Band Edge & Conducted Spurious emission ......................................................... 13 4.5 Radiated Emission ........................................................................................... 16 APPENDIX A – Test Equipment Used For Tests ................................................................ 27 CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2022-02458-1 Page (4) / (27) Pages [QF-QP15-07] Ver.01 R101 1. General Product Description 1.1 Applicant Information Company SOLUM CO.,LTD. Contact Point 4,5,6th F, 357, Guseong-ro, Giheung-gu, Gyeonggi-do, Yongin-si, Republic of Korea Contact Person Name : Ki Dong Lee E-mail : [email protected] Tel : +82-31-8006-7677 1.2 Product Information FCC ID 2AFWN-EL042K3WRA IC 22800-EL042K3WRA Product Description ESL Label Model name EL042K3WRA Variant Model name EL042K3BRA, EL042K3WYA, EL042K3BYA (Variant models have no technical differences with each model except for the model name and color for marketing purposes.) Operating Frequency 2 401 MHz - 2 480 MHz RF Output Power 3.50 dBm(2.239 mW) Antenna Specification Antenna type : PCB Antenna Peak Gain : 1.64 dBi Number of channels 80 Channel Spacing 1 MHz Type of Modulation GFSK Power Source DC 3.0 V(Battery) FVIN 1.0 Test Software(Version) Tera term (Version 4.8.5) 1.3 Peripheral Devices -For Conducted Measurement and Radiated Measurement Device Manufacturer Model No. Serial No. Notebook HP Inc. HP Probook 455 G7 5CD0234DWW AC Adapter HP Inc. TPN-LA16 PA-1650-20HL CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2022-02458-1 Page (5) / (27) Pages [QF-QP15-07] Ver.01 R1…

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CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Test Setup Photos and Configuration Radiated Electric Field Emissions 9 kHz to 30 MHz 30 MHz to 1 GHz CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com 1GHz to 18 GHz 18 GHz to 26.5 GHz CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Conducted Emissions