2BFLD-CDWC45502S01WiFi Module

产 品 承 认 书 SPECIFCATION CDW-C45502S-01 WiFi Module Spec Software： 客 户 Customer 客户承认 Approve（请盖印章） 日 期 Date 深圳市中龙通电子科技有限公司 C H I N A D R AGO N TE C H NOL OG Y LIM IT E D 公司地址：深圳市宝安区沙井街道南浦路林坡坑蚝三第一工业园B4栋 电话：(86 755) 81449957 传真：(86 755) 81449967 E-mail: [email protected] Http://www.cdtech.cn 拟制 Design 审核 Check 批准 Approve 版本 Version 日期 Date V1.0 2023.12.26 深圳市中龙通电子科技有限公司 Page 2 WiFi Module CDW-C45502S-01 更改记录： Reversion History： 版本 Version 日期 Date 更改内容 Modification 1.0 2023.12.26 First release 深圳市中龙通电子科技有限公司 Page 3 WiFi Module CDW-C45502S-01 1. Overview CDW-C45502S-01 is a highly integrated, high performance and low cost 1x1 IEEE 802.11 b/g/n System-on-Chip (SoC) for the Internet of Things (IoT). ASR550X integrates RF transceiver, 802.11 PHY+MAC, ARM Cortex-M4F, advanced peripheral interfaces, Real Time Counter (RTC) and power management circuits. The integrated RF and analog circuit incorporate T/R switch, RF balun, power amplifier, low-noise amplifier, and entire power management modules. 2. Features ■ Support 802.11 b/g/n compatible WLAN ■ Support 802.11e QoS enhancement (WMM) ■ Support 802.11i (WPA/WPA2 PSK), Open/WEP/TKIP/CCMP ■ Integrated Power Amplifier (PA) with internal power detector and closed loop power calibration ■ Support eXecute-in-Place (XiP) on flash and external SPI flash ■ Support OTA 深圳市中龙通电子科技有限公司 Page 4 WiFi Module CDW-C45502S-01 3. Block Diagram 4. General Specification Model CDW-C45502S-01 Product Name WiFi Module Major Chipset ASR5502S Standard 802.11b/g/n Operating Temperature -20~ +70°C ambient temperature Storage Temperature -40 ~ 80°C ambient temperature Dimension 18x15x1.6 (LxWxH) ±0.2mm 深圳市中龙通电子科技有限公司 Page 5 WiFi Module CDW-C45502S-01 5. RF Specification Wifi SpecificationFeature Description WLAN Standard IEEE 802.11b/g/n WiFi compliant Frequency Range 2.4～2.4835 GHz ISM Band Number of Channels 2.4GHz：Ch1 ~ Ch11 Output Power 802.11b /11Mbps : 17dBm ± 2 dB @ EVM ≤ -15dB 802.11g /54Mbps : 15dBm ± 2 dB @ EVM ≤ -28dB 802.11n /MCS7: 14dBm ± 2 dB @ EVM ≤ -30dB Receive Sensitivity (11b,11MHz) - 11Mbps PER @ -89dBm, typical Receive Sensitivity (11g,54Mbps) - 54Mbps PER @ -76dBm, typical Receive Sensitivity (11n,20MHz) - MCS 7 PER @ -73dBm, typical 6. Physical Dimensions Note: ± 0.1mm. (Unit: mm) Top side face Bottom 深圳市中龙通电子科技有限公司 Page 6 WiFi Module CDW-C45502S-01 7. Pin Description NO. PIN Name Type Description 1 NC — No connect, keep floating 2 IO17 — GPIO,(No connect, keep floating) 3 RESET I/O Enable the foot 4 IO16 — GPIO,(No connect, keep floating) 5 IO14 — GPIO,(No connect, keep floating) 6 IO12 — GPIO,(No connect, keep floating) 7 IO13 — GPIO,(No connect, keep floating) 8 VCC_3V3 P 3.3V INPUT 9 GND — Ground connections 10 IO15 — GPIO,(No connect, keep floating) 11 TXD I/O (for printing the module internal information) 12 IO0 — GPIO,(No connect, keep floating) 13 IO4 — GPIO,(No connect, keep floating) 14 IO5 — GPIO,(No connect, keep floating) 15 RXD I/O UART 1 _ RXD (User Serial Port) 16 TXD I/O UART 1 _ TXD (User Serial Port) 17 TEST1 I/O Boot with UART，Need to pull up 深圳市中龙通电子科技有限公司 Page 7 WiFi Module CDW-C45502S-01 8. Physical photo Description: PCB different suppliers 深圳市中龙通电子科技有限公司 Page 8 WiFi Module CDW-C45502S-01 9. Packaging Detail: ESD CAUTION inner box K3K: 33.5cm*34.7cm*7cm A box of 700 PCS carton K=A: 36.4*35.7*37.5cm A case of 3500 PCS Color of plastic disc: blue A roll of 700pcs(前后留空20pcs) 35±2mm Vacuum AL BAG ANTI-STATIC 深圳市中龙通电子科技有限公司 Page 9 WiFi Module CDW-C45502S-01 FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. FCC Radiation Exposure Statement The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co‐located for operating in conjunction with any other antenna or transmitter. 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. Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The final end product must be labelled in a visible area with the following: ―Contains Transmitter Module FCC ID: 2BFLD-CDWC45502S01‖ 深圳市中龙通电子科技有限公司 Page 10 WiFi Module CDW-C45502S-01 Requirement per KDB996369 D03 2.2 List of applicable FCC rules List the FCC rules that are applicable t…

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U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: HOPEK CORPORATION INC Address:4358 S BANNOCK ST ENGLEWOOD, CO 80110 United States FRN:0034562900 Contact Name: Peter Davis Tel.: 561-235-6113 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: September 4, 2024 Signed by (Printed Name/Title): Peter Davis The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Hunan China Dragon Technology Co., Ltd. Grantee Code: 2BFLD FCC ID: 2BFLD-CDWC45502S01 Contact Name: Xiaoyuesong Address: 3F, Kunpeng Industrial Park, No. 67 Ziyuan Road, Yuelu District, Xiang River, Changsha, China Telephone No: 13510082761 Email: [email protected] FRN: 0035185347 Applicant Signature: Date: September 4, 2024 Signed by (Printed Name/Title): Xiaoyuesong / Manager

(Hunan China Dragon Technology Co., Ltd.) (2024.9.4) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BFLD- CDWC45502S01) [Hunan China Dragon Technology Co., Ltd.] (“the applicant”) 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. Sincerely, (Applicant signature) (Applicant printed name) Xiaoyuesong (Hunan China Dragon Technology Co., Ltd.) (2024.9.4) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BFLD- CDWC45502S01) [Hunan China Dragon Technology Co., Ltd.] (“the applicant”) 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. Sincerely, (Applicant signature) (Applicant printed name) Xiaoyuesong

Hunan China Dragon Technology Co., Ltd. 2024.9.4 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Xiaoyuesong / Manager Contact information / address: 3F, Kunpeng Industrial Park, No. 67 Ziyuan Road, Yuelu District, Xiang River, Changsha, China

Hunan China Dragon Technology Co., Ltd. 2024.9.4 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: WiFi Module Trademark: N/A MODEL: CDW-C45502S-01 FCC ID: 2BFLD-CDWC45502S01 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Xiaoyuesong / Manager Contact information / address: 3F, Kunpeng Industrial Park, No. 67 Ziyuan Road, Yuelu District, Xiang River, Changsha, China

Hunan China Dragon Technology Co., Ltd. FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024/09/04 Subject; Modular Transmitter Application Company name: Hunan China Dragon Technology Co., Ltd. FCC ID: 2BFLD-CDWC45502S01 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID 2BFLD-S9 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. Yes, It has a shield The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. Yes, This module have buffered modulation/data inputs . The module must contain power supply regulation on the module. Yes, The module have power supply regulation, The supply voltage is DC 3.3V. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). Yes, This module has a unique antenna connector The module must demonstrate compliance in a stand-alone configuration. Yes, This module is a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). Yes, The host system have label in a visible area indicated the following texts: " Contains WiFi Module (Single Module) FCC ID: 2BFLD-CDWC45502S01 The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Yes, This module meets the requirements of FCC part 15C(15.247). The module must comply with RF exposure requirements Yes, This module complies with FCC RF radiation exposure limits set forth for an uncontrolled environment, This equipment should be installed and operated with a Hunan China Dragon Technology Co., Ltd. FCC Modular Approval Request Rev 3.0 minimum distance of 20 centimeters between the radiator and your body." This module is designed to comply with the FCC statement, FCC ID is: 2BFLD-CDWC45502S01 Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements. Name: Song xiaoyue Date: 2024/09/04 Title: manager Signature of applicant

External Photos

Label & Location Location: Label: Size:10*10mm WiFi Module FCC ID: 2BFLD-CDWC45502S01

Internal Photos Antenna

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BFLD-CDWC45502S01 Applied procedures / limit According to FCC §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna, R=0.2m TEST RESULTS Mode Tune up Produce power Maximum peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW/ cm2) Result 2.4G WIFI 17±2 19 79.433 0.84 (-0.74dBi) 0.013274 1 Pass Conclusion: For the all Power Density≤ 1.0, compliance with FCC's RF Exposure The Product unsupported at the same time to Transmitting.

深圳市鑫尔盛科技有限公司 Shenzhen xinersheng Technology Co., Ltd CDW-C45502S-01 Module antenna test report v ：工程：John v 日期：2023-02-16 1 . Multiprobe RF antenna test system . .+1.4511 t ECC .RS ZND ZN8. 8753. 5071.5230.3672J . 2345G&NBT.eMTC.CAT.l Bluetoothl-5.GPS/ Beidou/GlonassWlAN802.11abgnacax6E a. TRPTIS.EIRP.E . . mE aEE mE T 2.Test prototype 3. Antenna 1 VSWR 4.Antenna size(Unit:mm) 5. Antenna gain and efficiency Frequency (MHz) 2400.0 2410.0 2420.0 2430.0 2440.0 2450.0 2460.0 2470.0 2480.0 2490.0 2500.0 Gain (dBi) -0.82 -0.80 -0.79 -0.77 -0.86 -0.80 -0.74 -0.78 -0.89 -0.96 -0.99 Efficiency (%) 26.67 27.28 28.12 28.95 29.00 29.22 29.25 28.91 28.29 27.81 27.61 6.AnAntenna 1 2.4G gain and efficiencytenna

No.：BCTC/RF-EMC-005 Page: 1 of 68 Edition：B.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2408276278E Applicant: Hunan China Dragon Technology Co., Ltd. Product Name: WiFi Module Test Model: CDW-C45502S-01 Tested Date: 2024-08-27 to 2024-09-02 Issued Date: 2024-09-02 Report No.: BCTC2408276278E No.：BCTC/RF-EMC-005 Page: 2 of 68 Edition：B.2 FCC ID: 2BFLD-CDWC45502S01 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: WiFi Module Trademark: N/A Model/Type Reference: CDW-C45502S-01 Prepared For: Hunan China Dragon Technology Co., Ltd. Address: 3F, Kunpeng Industrial Park, No. 67 Ziyuan Road, Yuelu District, Xiang River, Changsha, China Manufacturer: Hunan China Dragon Technology Co., Ltd. Address: 3F, Kunpeng Industrial Park, No. 67 Ziyuan Road, Yuelu District, Xiang River, Changsha, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2024-08-27 Sample Tested Date: 2024-08-27 to 2024-09-02 Issue Date: 2024-09-02 Report No.: BCTC2408276278E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is WIFI-2.4GHz band radio test report. Tested by: Approved by: Shanshan. Zhang / Project Handler Zero Zhou/Reviewer Report No.: BCTC2408276278E No.：BCTC/RF-EMC-005 Page: 3 of 68 Edition：B.2 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 11 5. Test Facility And Test Instrument Used ............................................................... 12 5.1 Test Facility ......................................................................................................... 12 5.2 Test Instrument Used .......................................................................................... 12 6. Conducted Emissions .......................................................................................... 14 6.1 Block Diagram Of Test Setup .............................................................................. 14 6.2 Limit .................................................................................................................... 14 6.3 Test procedure .................................................................................................... 14 6.4 EUT operating Conditions ................................................................................... 14 6.5 Test Result .......................................................................................................... 15 7. Radiated Emissions ............................................................................................. 17 7.1 Block Diagram Of Test Setup .............................................................................. 17 7.2 Limit .................................................................................................................... 18 7.3 Test procedure .................................................................................................... 19 7.4 EUT Operating Conditions .................................................................................. 20 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 26 8.1 Block Diagram Of Test Setup .............................................................................. 26 8.2 Limit .................................................................................................................... 26 8.3 Test procedure .................................................................................................... 27 8.4 EUT Operating Conditions .................................................................................. 27 8.5 Test Result .......................................................................................................... 28 9. Power Spectral Density Test ............................................................................... 29 9.1 Block Diagram Of Test Setup .............................................................................. 29 9.2 Limit .................................................................................................................... 29 9.3 Test procedure .................................................................................................... 29 9.4 EUT Operating Conditions ....................................................…

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Conducted Emission Radiated Emission Spurious emissions