2BDBN-1MSSG1HYX 1-in-1 MICRO INVERTER

User Manual Carefully read this inverter user instructions before using. Read and save these instructions. M300/400/500-S-NA MICRO INVERTER HYX-M300/400/500-S User Manual © 2023 ZHEJIANG HYXI TECHNOLOGY CO., LTD. All rights reserved. This document cannot be copied fully or partially, transferred, or distributed in any form without the prior written permission of ZHEJIANG HYXI TECHNOLOGY CO., LTD ( hereinafter referred to as "HYXIPOWER" ). TRADEMARKS and other HYXIPOWER trademarks are the trademarks or registered trademarks of HYXIPOWER All other trademarks mentioned herein are the properties of their respective owners. i HYX-M300/400/500-S User ManualContents Contents 1. Safety Instructions ...........................................................................................................................................1 1.1 Safety Instruction .................................................................................................................................................................1 1.2 Symbol Description ...........................................................................................................................................................2 1.2.1 Symbols Used in the Manual ......................................................................................................................................2 1.2.2 Other Symbols .................................................................................................................................................................2 1.3 Radio Wave Interference Statement ..........................................................................................................................2 2. Product Introduction ......................................................................................................................................4 2.1 Photovoltaic On-Grid System ........................................................................................................................................4 2.2 Microinverter .......................................................................................................................................................................4 2.3 1-in-1 Microinverter System ...........................................................................................................................................5 2.4 Communication Technology .........................................................................................................................................5 2.5 Product Features ...............................................................................................................................................................6 2.6 Inverter Size and Termnial Instruction ......................................................................................................................6 3. Installation .........................................................................................................................................................7 3.1 Mircoinverter System Installation Accessories ......................................................................................................7 3.2 Customer Needs to Provide Tools .............................................................................................................................7 3.3 Installation Procedures....................................................................................................................................................8 3.3.1 How to Make a T-Junction Bus .................................................................................................................................8 3.3.2 Microinverter Installation ............................................................................................................................................9 3.3.3 Connect Microinverter with T-junction ..............................................................................................................10 3.3.4 Connect PV module ..................................................................................................................................................10 3.3.5 Draw Installation Map .................................................................................................................................................11 3.3.6 Operate and Power On ..............................................................................................................................................11 4. Fault Clearance ...............................................................................................................................................12 4.1 Status indication and error reporting ......................................................................................................................12 4.1.1 Start indicator ..................................................................................................................................................................12 4.1.2 Operating indicator ......................................................................................................................................................12 4.1.3 Alarm Troubleshooting ...............................................................................................................................................12 4.1.4 On-Site Inspection (qualified installers only) ....................................................................................................15 5. Maintenance Guide .......................................................................................................................................16 5.1 Routine maintenance ......................................................................................................................................................16 5.2 Microinverter Replacement ..…

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Zhejiang Hyxi Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Zhejiang Hyxi Technology Co., Ltd. Address: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER FCC ID: 2BDBN-1MSSG1 Model(s): HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA 2.911(d)(5)(i) Equipment Type We, [Zhejiang Hyxi Technology Co., Ltd.] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Bin Hu Date: 2024.01.18 Title and Company name: Manager Zhejiang Hyxi Technology Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Zhejiang Hyxi Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Zhejiang Hyxi Technology Co., Ltd. Address: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER FCC ID: 2BDBN-1MSSG1 Model(s): HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA 2.911(d)(5)(ii) Applicant filing We, [Zhejiang Hyxi Technology Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Bin Hu Date: 2024.01.18 Title and Company name: Manager Zhejiang Hyxi Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

AOGES CO., LIMITED 2.911 (d)(7)USA Agent v1.5 Section 2.911(d)(7) USA Agent for Service of Process Company name: Zhejiang Hyxi Technology Co., Ltd. Address: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER FCC ID: 2BDBN-1MSSG1 Model(s): HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA 2.911(d)(7) USA Designated Agent for Service of Process We, [Zhejiang Hyxi Technology Co., Ltd.] (“the applicant”) designate [AOGES CO., LIMITED] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either we the grantee have permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: AOGES CO., LIMITED USA Address: 1624 Market St., Ste 226, #30327 Denver CO, 80202 US FRN Number 0033947847 Contact Name: XIAOYAN LAI Telephone No: +1 303 623 1940 Email: [email protected] Applicant Company name: Zhejiang Hyxi Technology Co., Ltd. Address: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Grantee FRN Number0034399766 FCC Grantee Code: 2BDBN Contact Name: Bin Hu Telephone No: 18072760424 Email: [email protected] AOGES CO., LIMITED 2.911 (d)(7)USA Agent v1.5 Signature: Title: General Manager Signature: Title: Manager Date:2024.01.18 Date:2024.01.18 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Zhejiang Hyxi Technology Co., Ltd. Agent Authorization Company name: Zhejiang Hyxi Technology Co., Ltd. Address: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER FCC ID: 2BDBN-1MSSG1 Model(s): HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2024.01.18 Name: Bin Hu Title: Manager Company: Zhejiang Hyxi Technology Co., Ltd.

Zhejiang Hyxi Technology Co., Ltd. Authorization Letter We, (the approval holder) Company name Zhejiang Hyxi Technology Co., Ltd. Addresss 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China declare that the following representative (agent): Name (person) Bovey Yang Company name Shenzhen STS Test Services Co., Ltd. Addresss 1/F., Building B, Zhuoke Science Park, No.190, Chongqing Road,Fuyong Street, Bao’an District, Shenzhen, Guangdong,China City Shenzhen Country China to act on our behalf on all matters concerning the application and documents submitted to Micom Labs for product certification below Product Description HYX 1-in-1 MICRO INVERTER Type or Model(s) HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA Tradename or Brand(s) N/A Attestation: City: Date: Name: (this must be a person) Function: Signature: (or official company stamp) China 2024.01.18 Bin Hu Manager

Differences Description We Zhejiang Hyxi Technology Co., Ltd. state: Product： HYX 1-in-1 MICRO INVERTER Model Name： HYX-M500-S-NA, HYX-M300-S-NA, HYX-M400-S-NA Brand Name： N/A Motherboard, hardware, software, appearance, etc. are the same, only difference in model name. Sincerely, Signature: Date: 2024.01.18 Name: Bin Hu Title: Manager Company: Zhejiang Hyxi Technology Co., Ltd.

Zhejiang Hyxi Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024.01.18 Subject; Request for Confidentiality FCC ID: 2BDBN-1MSSG1 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Date: 2024.01.18 Name: Bin Hu Title: Manager Company: Zhejiang Hyxi Technology Co., Ltd.

Page 1 of 3 Report No.: STS2312037 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: HYX-M500-S-NA Photo 1 Photo 2 Page 2 of 3 Report No.: STS2312037 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2312037 Photo 5 Photo 6

FCC/IC Label Size: 40*30mm The label is printed on the shell HYX 1-in-1 MICRO INVERTER HYX-M500-S-NA FCC ID: 2BDBN-1MSSG1 IC: 31516-1MSSG1

Page 1 of 3 Report No.: STS2312037 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: HYX-M500-S-NA Photo 1 Photo 2 WIFI Antenna Page 2 of 3 Report No.: STS2312037 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2312037 Photo 5

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2312037H01 Issued for Zhejiang Hyxi Technology Co., Ltd. 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER Brand Name: N/A Model Name: HYX-M500-S-NA Series Model(s): HYX-M300-S-NA, HYX-M400-S-NA FCC ID: 2BDBN-1MSSG1 Test Standards: FCC 47CFR §2.1091 Page 2 of 10 Report No.: STS2312037H01 TEST REPORT Applicant’s Name ................. : Zhejiang Hyxi Technology Co., Ltd. Address ................................. : 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Manufacturer's Name ........... : Zhejiang Hyxi Technology Co., Ltd. Address ................................. : 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Description Product Name ........................ : HYX 1-in-1 MICRO INVERTER Brand ................................... : N/A Model Number ....................... : .. : HYX-M500-S-NA Series Model(s) ...................... : HYX-M300-S-NA, HYX-M400-S-NA Standards ............................. : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 04 Dec. 2023 Date (s) of performance of tests ............. : 04 Dec. 2023 ~ 08 Dec. 2023 Date of Issue .......................................... : 08 Dec. 2023 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Chris Chen) Authorized Signatory : (Bovey Yang) Page 3 of 10 Report No.: STS2312037H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 6 2. FCC 47CFR §2.1091 REQUIREMENT 7 2.1 TEST STANDARDS 7 2.2 LIMIT 7 2.3 TEST RESULT 10 Page 4 of 10 Report No.: STS2312037H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 08 Dec. 2023 STS2312037H01 ALL Initial Issue Page 5 of 10 Report No.: STS2312037H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name HYX 1-in-1 MICRO INVERTER Brand N/A Model Number HYX-M500-S-NA Series Model(s) HYX-M300-S-NA, HYX-M400-S-NA Model Difference Only difference in model name. Product Description The EUT is HYX 1-in-1 MICRO INVERTER Operation Frequency: 433.35 MHz- 434.6 MHz Modulation Type: FSK Antenna gain: -3 dBi Antenna Designation: Feed coupling Antenna Hardware Version V1.0 Software Version V01.00.02 Page 6 of 10 Report No.: STS2312037H01 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 7 of 10 Report No.: STS2312037H01 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 8 of 10 Report No.: STS2312037H01 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 9 of 10 Report No.: STS2312037H01 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which c…

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DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 1/12 AntennaReport PRODUCTNAME:433MHzthumbblackantenna1.13Black cablel=70mm+terminal UBP/N:UB02C100B1Daa07AREV:A RevisionRevisorDateRevisionRecord V-AWenqiang.Xiong2023/10/20FirstDraft MANUFACTURER SIGNATURE CUSTOMER SIGNATURE CHECKEDBY: APPROVEDBY: DATE: 2023/10/20 DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 2/12 Contents 1Specification-------------------------------------------------------------------------------------- 2AntennaDimension------------------------------------------------------------------------------ 3Picture---------------------------------------------------------------------------------------------- 4ElectricalTest------------------------------------------------------------------------------------- 4.1Method------------------------------------------------------------------------------------- 4.2Device-------------------------------------------------------------------------------------- 4.3TestConfiguration------------------------------------------------------------------------ 4.4PassiveTest-------------------------------------------------------------------------------- DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 3/12 1Specification Specification P/N Frequency 433MHz AntennaType Feedcoupling Dimension Φ18*45.6mm Impedance 50Ω Polarization Linear VSWR <3.5 AxialRatio notinvolved Efficiency 13~15% Gain -2.71dbi RadiationPattern Omni-directional Connection IPEX1 LineType RF1.13，70mm，Black LineLoss 0.5dB·m -1 @1GHz，1dB·m -1 @3GHz，3dB·m -1 @6GHz PowerHandling 1W Operating Temperature -20~70°C DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 4/12 2AntennaDimension DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 5/12 3Picture 3.1Picture DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 6/12 3.2MatchingCircuit TheComponentsofMatchingCircuit PositionDescripitionTolerance 1-- 20Ω- 3-- DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 7/12 4ElectricalTest 4.1Method NameParameterMethodStandardno. MobileCommunication antenna VSWR Genericspecificationfor antennasusedinthe mobilecommunications GB/T9410-2008 Antennagain Radiationpattern AntennaperformanceRadiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-1979 4.2Device EquipmentManufacturerModelNo.SerialNo.LastCal.DueDate NetworkAnalyzerAgilentE5071CMY463159962022.08.252023.08.24 RadioCommunication Tester ROHDE&SCHWARZ CMW500 0002K50-100 844 2022.08.252023.08.24 DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 8/12 4.3TestConfiguration DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 9/12 4.4PassiveTest 4.4.1Position DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 10/12 4.4.2ReturnLoss Frequency（MHz）433 Returnloss（dB）-6.03 DongguanYoubiElectronicsCo.,LTDHangzhouYoubigeElectronicsCo.,LTDShenzhenYoubiElectronicsCo.,LTD Room101,Building2,No.9,Room106,Building3,LetongSciencePark,Room106,BuildingA,XinzhengIndustrialPark, XinfaRoad,LinVillage,TangxiaTownNo.500QiuyiRoad,BinjiangDistrict57LiuxianRoad,Bao'anDistrict,Shenzhen Tel:+86-769-81777126Website：www.ubuant.com 11/12 4.4.3Efficiency&…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2312037W01 Issued for Zhejiang Hyxi Technology Co., Ltd. 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Name: HYX 1-in-1 MICRO INVERTER Brand Name: N/A Model Name: HYX-M500-S-NA Series Model(s): HYX-M300-S-NA, HYX-M400-S-NA FCC ID: 2BDBN-1MSSG1 Test Standards: FCC Part 15.231 S T L A B S Page 2 of 36 Report No.:STS2312037W01 TEST REPORT Applicant’s Name .................: Zhejiang Hyxi Technology Co., Ltd. Address ..................................: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Manufacturer's Name ...........: Zhejiang Hyxi Technology Co., Ltd. Address ..................................: 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Street, Xihu District, Hangzhou, Zhejiang, China Product Description Product Name ............................ : HYX 1-in-1 MICRO INVERTER Brand Name ............................... : N/A Model Name ...........................: HYX-M500-S-NA Series Model(s) ....................: HYX-M300-S-NA, HYX-M400-S-NA Test Standards .......................... : FCC Part 15.231 Test Procedure ........................... : ANSI C63.10-2013 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ...............…

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