2A627JFWSM00001WiFi Switch Module

U.S. Solid WiFi Switch Module User Manual (Version 1.0) Note 1. To avoid product damage and personal injury, please read this User Manual carefully, and keep it for further use. 2. Keep the product out of reach of children. Product Features  It can be installed easily and conveniently with quick connector.  The prefect combination of WiFi switch module and traditional device makes your life easier. With “Smart life” APP, you can control the device anytime and anywhere.  Amazon Alexa & Google home audio controls supportable.  Countdown & timing functions supportable.  Share your settings with family members. Product Parameters Name: WiFi switch module Input voltage: DC 5-12V 50/60Hz Output voltage: DC 5-12V 50/60Hz Maximum Current: 10A Maximum Power: DC 12V --- 120W DC 5V --- 50W How to use  Warning 1. For your safety, be sure to connect under the state of power off. 2. Do not confuse the input end with the output end of the WiFi switch module, and pay attention to the prompt on the panel. 1. Connect Circuit 1. Connect the input into the DC power supply and then the output into the device. 2. Open the handle to 90°, insert the positive pole and the negative pole. Then pull the handle down. 2. Download & Sign Up 1. Scan QR code above or download App “Smart Life” from App store or Google play. 2. Sign up and log in using email. Tip: Only 2.4GHz is supported. 3. Use WiFi Switch Module to Pair App 1. Turn on the DC power. The divice is turned on. 2. Scan the QR code on the product shell with “Smart Life” App. 3. Long press the RESET button and release button until the indicator light blinks rapidly. 4. Enter password, click next, and click carry on. 5. Connect device and Add device. 6. Welcome to the user interface. More personalized features await your exploration. If there is any problem in this process, contact us for help. CONTACT US Email: [email protected] Website: https://ussolid.com FCC WARNING 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. To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm distance between the radiator and your body: Use only the supplied antenna.

US SOLID LLC Model Difference Data：2023.01.10 Product description: WiFi Switch Module Model name: JFWSM00001, JFWSM00002 Trade Name: FCC ID: 2A627JFWSM00001 All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Junwei Wang（General Manager） Contact information / address：1200 E 55th Street Unit B, Cleveland, Ohio, United States, 44103

US SOLID LLC (2023.01.10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (WiFi Switch Module / JFWSM00001, JFWSM00002 / FCC ID: 2A627JFWSM00001 ) 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 Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Junwei Wang Title: General Manager

US SOLID LLC (2023.01.10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology 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, Signature: Name: Junwei Wang Title: General Manager

External Photos

FCC ID LABEL: Label Location: FCC ID: 2A627JFWSM00001 Model No.: JFWSM00001 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.

Internal Photos ANT

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2A627JFWSM00001 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=20cm Test Result of RF Exposure Evaluation Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result 2.4G WIFI 802.11b&2 437 7±1 8 6.3096 1.6634 (2.21dBi) 0.00209 1 Pass

Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB221220004RFX Report Tel: 4008-707-283Web: http://www.ctb-lab.net Page 1 of 59 TEST REPORT Compiled by: Reviewed by: Approved by: Chen Zheng Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. 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 CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: WiFi Switch Module FCC ID: 2A627JFWSM00001 Trademark: Model Number: JFWSM00001, JFWSM00002 Prepared For: US SOLID LLC Address: 1200 E 55th Street Unit B, Cleveland, Ohio, United States, 44103 Manufacturer: Jiangsu Liangxu Intelligence Science and Technology Co., Ltd. Address: Room 205, Building 5, No. 320, Pubin Road, Jiangpu Street, Pukou District, Nanjing Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Dec. 16 , 2022 Sample tested Date: Dec. 16, 2022 to Dec. 20, 2022 Issue Date: Dec. 20, 2022 Report No.: CTB221220004RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB221220004RFX Report Tel: 4008-707-283Web: http://www.ctb-lab.net Page 2 of 59 TABLE OF CONTENT Test Report Declaration Page 1.VERSION .......................................................................... 3 2.TEST SUMMARY ................................................................... 4 3.MEASUREMENT UNCERTAINTY ..................................................... 5 4.PRODUCT INFORMATION AND TEST SETUP .......................................... 6 4.1 Product Information .................................................................... 6 4.2 Test Setup Configuration ............................................................... 6 4.3 Support Equipment .................................................................... 6 4.4 Channel List .......................................................................... 7 4.5 Test Mode ............................................................................ 7 4.6 Test Environment ...................................................................... 7 5.TEST FACILITY AND TEST INSTRUMENT USED ....................................... 8 5.1 Test Facility ........................................................................... 8 5.2 Test Instrument Used .................................................................. 8 6.AC POWER LINE CONDUCTED EMISSION ............................................ 10 6.1 Block Diagram Of Test Setup .......................................................... 10 6.2 Limit ................................................................................ 10 6.3 Test procedure ....................................................................... 10 6.4 Test Result .......................................................................... 11 7.RADIATED SPURIOUS EMISSION ................................................... 12 7.1 Block Diagram Of Test Setup .......................................................... 12 7.2 Limit ................................................................................ 12 7.3 Test procedure ....................................................................... 13 7.4 Test Result .......................................................................... 14 8.BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 36 8.1 Block Diagram Of Test Setup .......................................................... 36 8.2 Limit ................................................................................ 36 8.3 Test procedure ....................................................................... 36 8.4 Test Result .......................................................................... 37 9.COUDUCTED OUTPUT POWER ..................................................... 44 9.1 Block Diagram Of Test Setup .......................................................... 44 9.2 Limit ................................................................................ 44 9.3 Test procedure ....................................................................... 44 9.4 Test Result .......................................................................... 45 10.6DB OCCUPIED BANDWIDTH ....................................................... 46 10.1 Block Diagram Of Test Setup ......................................................... 46 10.2 Limit ............................................................................... 46 10.3 Test procedure ...................................................................... 46 10.4 Test Result ......................................................................... 47 11.POWER SPECTRAL DENSITY ...................................................... 52 11.1 Block Diagram Of Test Setup ......................................................... 52 11.2 Limit ............................................................................... 52 11.3 Test procedure ...................................................................... 52 11.4 Test Result ......................................................................... 53 12.ANTENNA REQUIREMENT ......................................................... 58 13.EUT TEST SETUP PHOTOGRAPHS .................................................. 59 (Note: N/A means not applicable) Shenzhen CTB T…

Text truncated - open the document above for the full version.

Radiated Emission Below 1G Above 1G