2AFGRECUREnergy Communication Unit

©AllRightsReserved (Android)(iOS) APsystemsEnergyCommunicationUnitECU-R Pleaseusemobilebrowserto scantheQRcodes todownloadECUAPP: Installation/UserManual APsystemsECU-RInstallation/UserManual2 TableofContents 1.Introduction ........................................................................................................................................ 3 2.InterfaceExplanation ..................................................................................................................... 4 2.1InterfaceLayout ................................................................................................... 4 2.2Reset ....................................................................................................................... 4 2.3PowerConnectionPort .................................................................................... 5 2.4RJ45EthernetNetworkPort .......................................................................... 5 2.5RJ45Signal（OnlyforAustralia） ................................................................ 5 2.6Antenna .................................................................................................................. 5 2.7USBport ................................................................................................................ 5 2.8AP ............................................................................................................................. 5 2.9LED1 ......................................................................................................................... 6 2.10LED2 ...................................................................................................................... 6 3.HardwareInstallation ..................................................................................................................... 7 3.1Preparation ............................................................................................................. 7 3.2SelectinganInstallationLocationfortheECU-R .................................... 7 3.3Installation ............................................................................................................. 7 3.4CableConnection ............................................................................................... 8 3.5InternetConnection ........................................................................................... 9 4.ECU-RUserInterface .................................................................................................................... 10 4.1ConnectingtotheECU-RviatheLocalWireless ................................... 10 4.2AddUID ............................................................................................................... 11 4.3DeleteUID ........................................................................................................... 11 4.4Homepage .......................................................................................................... 11 4.5Data ....................................................................................................................... 12 4.5.1RealTimeData.......................................................................................12 4.5.2Power.......................................................................................................13 4.5.3Powergenerationstatistics..............................................................13 4.6Settings ................................................................................................................ 14 4.6.1ManageIDs.............................................................................................14 4.6.2GridProfile.............................................................................................14 4.6.3InverterSignalLevel...........................................................................14 4.6.4Timemanagement..............................................................................15 4.6.5ManagetheNetworkConnection..................................................16 4.6.6ManagetheWLANconnection......................................................16 4.6.7WLANPASSWORD.............................................................................17 4.6.8AutomaticSystemCheck.................................................................17 4.6.10Language..............................................................................................18 4.6.11Help..........................................................................................................18 4.7EMARegistrationfunction ............................................................................ 19 4.7.1ScanECU’sID.........................................................................................19 4.7.2CreateCustomer..................................................................................20 5.TechnicalData ................................................................................................................................. 21 6.ContactInformation ..................................................................................................................... 23 APsystemsECU-RInstallation/UserManual3 1.Introduction TheAPsystemsEnergyCommunicationUnit(ECU-R)istheinformation gatewayforourinverters.Theunitcollectsmoduleperformancedatafrom eachindividualinverterandtransfersthisinformationtoanInternet databaseinrealtime,requiringonlyasingledataandpowercable.Through theAPsystemsEnergyMonitoringandAnalysissoftware,theECU-Rgives youpreciseanalysisofeachinverterandmoduleinyoursolarinstallation fromAPP.Theuser-friendlyinterfaceletsyouaccessyoursolararrayin seconds. Features Collectsindividualmoduleandinverterstatistics Communicatesinrealtime  Requiresnoadditionalwiring TheAPsystemsECU-Risusedinutility-interactivegrid-tiedapplications, andismadeupoffourkeyelements: APsystemsinverter APsystemsEnergyCommunicationUnit(ECU-R) …

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Company: Altenergy Power System Inc. Add: No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China Tel: 15958324386Fax: N/A Date: 2021-1-19 Attestation Letter FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: The RF chip AR6302 installed in our product Energy Communication Unit (model name: ECU- R, ECU-B,LCU, FCC ID: 2AFGRECUR), the chip supports both WiFi and Bluetooth, but only the WiFi function is used, while the Bluetooth function is not used. Please contact me if there is need for any additional clarification or information. Best Regards, Sincerely Yours, Signature: Typed or Printed Name: Guofeng Jiang Title: Manager

Signature: Printed Name: Guofeng Jiang Title: Man ager QA-FR-170-B Company: Altenergy Power System Inc. Add: No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China Tel: 15958324386 Fax: 0573-83986966 E-mail: [email protected] FCC Authorization Date: 2020-12-07 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subj ect: Agent Authorization To whom it may concern: We, Altenergy Power System Inc., Hereby authorizes Bay Area Compliance Laboratories Corporation to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratory Corporation on our behalf shall have the same effect as o ur own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours,

Company: Altenergy Power System Inc. Add: No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China Tel: 15958324386 Fax: 0573-83986966 E-mail: [email protected] FCC Confidential Authorization Date: 2020-12 -07 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 74 35 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AFGRECUR To: whom it may concern, In accordan ce with Sections 0.457 and 0.459 of the Commission’s Rules, Altenergy Power System Inc. hereby requests long-term confidential treatment of information accompanying this ap plication as outlined below: Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Printed Name: Guofeng Jiang Title: Manager

Company: Altenergy Power Sy stem Inc. Add: No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China Tel: 15958324386 Fax: 0573-83986966 E-mail: guofen [email protected] DECLARATION Date: 2020-12-07 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: We, Altenergy Power System Inc., hereb y declare that product name: Energy C ommunication Unit (model name: ECU-R, ECU-B, LCU. FCC ID: 2AFGRECUR). These models are electrically identical with the PCB design, components and electromagnetic compatibility characteristics. And ECU-R h as been tested by BACL. The differences of them are as follows: Mo del name. Please contact me if there is need for any additional clarification or information. Best Regards, Signatur e: Typed or Printed Name: Guofeng Jiang Title: Manager

EXHIBIT A - EUT EXTERNAL PHOTOGRAPHS Zigbee Antenna Wi-Fi Antenna

EXHIBIT B - EUT INTERNAL PHOTOGRAPHS Zigbee Antenna (no use)

Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RSHF201207001-00B FCC §1.1310 & §2.1091 –MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart §2.1091 and subpart §1.1310, 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 Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f²) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR² = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); FCC Part 15.247 Page 13 of 62 Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RSHF201207001-00B Calculated Data: Mode Frequency Range (MHz) Antenna Gain Target Output Power Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) MPE Ratio (dBi) (numeric) (dBm) (mW) 802.11b 2412~2462 2.00 1.58 13.5 22.39 20 0.0070 1.0 0.0070 802.11g 2.00 1.58 17.5 56.23 20 0.0177 1.0 0.0177 802.11n- HT20 2.00 1.58 18.0 63.10 20 0.0198 1.0 0.0198 Zigbee 2405~2480 2.00 1.58 11.0 12.59 20 0.0040 1.0 0.0040 Note: 1) The tune-up output power was declared by the manufacturer. 2) Wi-Fi and Zigbee can transmit simultaneously . The worst condition is 802.11n-HT20 of Wi-Fi & Zigbee, as below: ==0.0040/1 .0 +0.0198/1.0=0.0238< 1.0 Conclusion: T he device meets FCC MPE at 20 cm distance. FCC Part 15.247 Page 14 of 62

FCC PART 15.247 TEST REPORT For Altenergy Power System Inc. No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China FCC ID: 2AFGRECUR Report Type: Original Report Product Type: Energy Communication Unit Project Engineer: Tyrone Wang Report Number: RSHF201207001-00A Report Date: 2020-12-28 Reviewed By: Oscar Ye EMC Manager Prepared By: Bay Area Compliant Laboratories Corp. (Kunshan) No.248 Chenghu Road, Kunshan, Jiangsu province, China Tel: +86-0512-86175000 Fax: +86-0512-88934268 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RSHF201207001-00A TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 8 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 TEST EQUIPMENT LIST ......................................................................................................................................... 11 FCC §1.1310& §2.1091 –MAXIMUM PERMISSIBLE EXPOSURE (MPE) ............................................................. 12 APPLICABLE STANDARD ............................................................................................................................................ 12 CALCULATED FORMULARY: ....................................................................................................................................... 12 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 15 EUT SETUP ................................................................................................................................................................ 15 EMI TEST RECEIVER SETUP ....................................................................................................................................... 15 TEST PROCEDURE ...................................................................................................................................................... 16 FACTOR & OVER LIMIT CALCULATION ...................................................................................................................... 16 TEST RESULTS SUMMARY .......................................................................................................................................... 16 TEST DATA ................................................................................................................................................................ 16 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS ............................................................................. 19 APPLICABLE STANDARD ............................................................................................................................................ 19 EUT SETUP ................................................................................................................................................................ 19 EMI TEST RECEIVER SETUP ....................................................................................................................................... 20 TEST PROCEDURE ............................................................................................................................…

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FCC PART 15.247 TEST REPORT For Altenergy Power System Inc. No.1, Yatai Road, Jiaxing Zhejiang, 314050 P.R. China FCC ID: 2AFGRECUR Report Type: Original Report Product Type: Energy Communication Unit Project Engineer: Tyrone Wang Report Number: RSHF201207001-00B Report Date: 2020-12-28 Reviewed By: Oscar Ye EMC Manager Prepared By: Bay Area Compliance Laboratories Corp. (Kunshan) No.248 Chenghu Road, Kunshan, Jiangsu province, China Tel: +86-0512-86175000 Fax: +86-0512-88934268 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RSHF201207001-00B TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 EXTERNAL I/O CABLE .................................................................................................................................................. 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 SUMMARY OF TEST RESULTS ............................................................................................................................. 11 TEST EQUIPMENT LIST ......................................................................................................................................... 12 FCC §1.1310 & §2.1091 –MAXIMUM PERMISSIBLE EXPOSURE (MPE) ....................................................... 13 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 15 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 16 APPLICABLE STANDARD ............................................................................................................................................ 16 EUT SETUP ................................................................................................................................................................ 16 EMI TEST RECEIVER SETUP ....................................................................................................................................... 16 TEST PROCEDURE ...................................................................................................................................................... 17 FACTOR & OVER LIMIT CALCULATION ...................................................................................................................... 17 TEST RESULTS SUMMARY .......................................................................................................................................... 17 TEST DATA ................................................................................................................................................................ 17 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS ............................................................................. 20 APPLICABLE STANDARD ............................................................................................................................................ 20 EUT SETUP ................................................................................................................................................................ 20 EMI TEST RECEIVER SETUP ....................................................................................................................................... 21 TEST PROCEDURE ...................................................................................................................................................... 21 TEST RESULTS SUMMARY .......................................................................................................................................... 21 T…

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EXHIBIT C - TEST SETUP PHOTOGRAPHS Conducted Emissions (Front View) Conducted Emissions (Side View) RadiatedEmissions (Below 1GHz) RadiatedEmissions (Above 1GHz)