MCQ-50M2100SIGMA PUMPS GEN V 802.11abgn Module

Digi International OEM WiFi module Specification and Integration Guide. Model 50002100-01 NOTE: WBM = 50002100-01 7.0 PROCEDURE/ INTIGRATION INSTRUCTIONS 7.1 Communications 7.1.1. Contains a 3.3V logic level asynchronous receive and transmit port for connection to the battery terminals for communication with the pump. [HRS 35195-002-001]. 7.1.2. Contains a Power port for power connection to the Pump. Vin is 6.0Vdc – 9.5Vdv, [HRS 35195-002-036] 7.1.3. Contains a Ground port for ground connection to the Pump. [HRS 35195-002-037] 7.2 Charging Subsystem 7.2.1. The WBM charge management system shall be designed with a Low Power RISC based Microcontroller. [HRS 35195-002-035] 7.2.1.1 The WBM charge management CPU shall have a minimum of one Universal Asynchronous Receive Transmit (UART) interface. [HRS 35195-002-039] 7.2.1.2 The WBM Charge management CPU shall have a minimum of one Serial Peripheral Port (SPI) interface. [HRS 35195-002-040] 7.2.1.3 The WBM Charge management CPU shall have a minimum of nine (9) General Input/Output (GPIO) interfaces. [HRS 35195-002- 041] 7.2.1.4 The WBM Charge management CPU shall have a minimum of one Pulse Width Modulator (PWM) interface. [HRS 35195-002-042] 7.2.1.5 The WBM Charge management CPU shall have a minimum of four (4) Analog-To-Digital converter interfaces [HRS 35195-002-043] 7.2.1.6 The WBM Charge management CPU shall have a reset port. [HRS 35195-002-044] 7.2.1.7 The WBM Charge management CPU shall have the capability of disabling or enabling the WIFI CPU [HRS 35195-002-045] 7.2.2. WBM contains circuitry to detect the presence of a Li-Ion battery pack. [HRS 35195-002-002] 7.2.3. WBM contains circuitry which is capable of supplying a constant charge current to the battery pack. [HRS 35195-002-003] 7.2.4. WBM contains circuitry which is capable of reading the battery pack temperature. [HRS 35195-002-004] 7.2.5. The battery module shall contain circuitry that is capable of reading a battery voltage. HRS 35195-002-005] 7.2.6. The battery voltage measurement shall use an operational amplifier (Op- Amp) for voltage measurement. [HRS 35195-002-148] 7.2.7. The configuration resistors of the Op-Amp within the battery voltage measuring circuit shall be 0.1% or less precision. [HRS 35195-002-149] 7.3 Radio Subsystem: The WBM is a self-contained 802.11 a,b,g,n,ac WiFi client communication module. The WBM is designed for and used by single OEM customer for use in this customer’s hosting product. 7.3.1. Processor system 7.3.1.1 The battery module WIFI system shall have an ARM9 class Central Processing Unit (CPU). [HRS 35195-002-006] 7.3.1.1.1 The WBM WIFI CPU shall have a minimum of one (1) SPI interface. [HRS 35195-002-047] 7.3.1.1.2 The WBM WIFI CPU shall have a minimum of one (1) UART interface. [HRS 35195-002-048] 7.3.1.1.3 The WBM WIFI CPU shall have a minimum of seven (7) GPIO interfaces. [HRS 35195-002-049] 7.3.1.1.4 The WBM WIFI CPU shall have a minimum of one (1) Joint Test Action Group (JTAG) interface. [HRS 35195- 002-050] 7.3.1.1.5 The WBM WIFI CPU shall have a reset port. [HRS 35195-002-051] 7.3.1.1.6 The WBM WIFI CPU shall have a voltage monitoring circuit. [HRS 35195-002-052] 7.3.1.2 The Radio subsystem shall have minimum 8MByte flash [HRS 35195-002-007] 7.3.1.3 The Radio subsystem shall have minimum 16MByte RAM [HRS 35195-002-008] 7.3.1.4 The Radio subsystem shall have 1 serial port (Tx and Rx) for communication to pump [HRS 35195-002-009] 7.3.1.5 The Radio subsystem shall have 1 serial port (Tx and Rx) for debug purposes; may be shared with the SPI bus. [HRS 35195- 002-010] 7.3.1.6 The Radio subsystem shall have SPI bus connected to battery charging CPU, the battery charger is the SPI slave. [HRS 35195- 002-011] 7.3.1.7 The Radio subsystem shall have 3 GPIO connected to battery charging CPU. [HRS 35195-002-012] 7.3.1.8 The Radio subsystem shall have JTAG interface for software debug [HRS 35195-002-013] 7.3.2. Radio 7.3.2.1 The Radio subsystem shall operate on DC voltages from 6.0 – 9.5 VDC [HRS 35195-002-014] 7.3.2.2 The Radio subsystem shall contain an Integrated primary antenna that is part of the PCB layout. This antenna layout is defined in the 31000003-01 Antenna Spec.docx document. [HRS 35195-002-015] 7.3.2.3 N/A 7.3.3. N/A 7.3.3.1 Tx Power: 7.3.3.1.1 2.4 GHz operation 7.3.3.1.1.1 802.11 b 7.3.3.1.1.1.1 The WBM Typical TxPower shall be 10.5 dBm (+/- 2dBm) [HRS 35195-002- 136] 7.3.3.1.1.2 802.11 g 7.3.3.1.1.2.1 The WBM Typical TxPower shall be 11 dBm (+/- 2dBm) [HRS 35195-002- 137] 7.3.3.1.1.3 802.11 n 7.3.3.1.1.3.1 The WBM Typical TxPower shall be 13 dBm (+/- 2dBm) [HRS 35195-002- 138] 7.3.3.1.2 5 GHz operation 7.3.3.1.2.1 802.11 a 7.3.3.1.2.1.1 The WBM Typical TxPower shall be 13 dBm (+/- 2dBm) [HRS 35195-002- 139] 7.3.3.1.2.2 802.11 n 7.3.3.1.2.2.1 The WBM Typical TxPower shall be 13 dBm (+/- 2dBm) [HRS 35195-002- 140] 7.3.3.2 Rx Sensitivity (larger negative numbers represent better performance): 7.3.3.2.1 2.4 GHz operation 7.3.3.2.1.1 802.11 b 7.3.3.2.1.1.1 The WBM Typical Rx Sensitivity shall be less or equal to -86 dBm (depending on the data rate) [HRS 35195- 002-141] 7.3.3.2.1.2 802.11 g 7.3.3.2.1.2.1 The WBM Typical RxSensitivity shall be less or equal to -74 dBm (depending on the data rate). [HRS 35195-002- ] 7.3.3.2.1.3 802.11 n (2.4 GHz, 20 MHz Bandwidth) The WBM Typical Rx Sensitivity shall be greater or equal to -70 dBm (depending on the data rate [HRS 35195-002-142] 7.3.3.2.2 5 GHz operation 7.3.3.2.2.1 802.11 a 7.3.3.2.2.1.1 The WBM Typical Rx Sensitivity shall be less or equal to -72 dBm (depending on the data rate) [HRS 35195- 002-143] 7.3.3.2.2.2 802.11 n (5 GHz, 20 MHz Bandwidth) 7.3.3.2.2.2.1 The WBM Typical Rx Sensitivity shall be less or equal to -69 dBm (depending on the data rate) [HRS 35195- 002-144] 7.3.3.2.2.3 802.11 n (5 GHz, 40 MHz Bandwidth) 7.3.3.2.2.3.1 The WBM Typical Rx Sensitivity shall be less or equal to -65 dBm (depending on the data rate) [HRS 35195- 002-145] 7.3.3.3 Integrated Antenna Gain. see Docum…

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FCC Part 15 Class B Radio Frequency Interference (RFI) (FCC 15.105) The Sigma Pumps Gen V 802.11abgn Module has been tested and found to comply with the limits for Class B digital devices pursuant to Part 15 Subpart B, of the FCC Rules. These limits are designed to provide reasonable protec- tion against harmful interference in a residential environment. This equip- ment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communi- cations. 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 equip- ment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and the 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. Labeling Requirements (FCC 15.19) The host device must contain a label that states: Contains FCC ID: MCQ-50M2100. This device complies with Part 15 of 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 interfer- ence received, including interference that may cause undesired operation. Modifications (FCC 15.21) Changes or modifications to this equipment not expressly approved by Digi may void the user's authority to operate this equipment. Industry Canada This digital apparatus does not exceed the Class B limits for radio noise emis- sions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communica- tions. This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions: 1.This device may not cause interfer- ence. 2.This device must accept any interfer- ence, including interference that may cause undesired operation of the device. Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class B prescrites dans le Reglement sur lebrouillage radioelec- trique edicte par le ministere des Commu- nications du Canada. --IC (Industry Canada) RSS-247:2015, Issue 1. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : 1.L’appareil ne doit pas produire de brouillage; 2.L’appareil doit accepter tout brouil- lage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Labeling Requirements (IC Canada) The host device must contain a label that states: Contains IC Canada: 1846A-50M2100 Digi International declares, that the product: Product Name: Gen V Sigma Pumps Gen V 802.11abgn Module to which this declaration relates, meets the requirements specified by the Federal Commu- nications Commission as detailed in the following specifications: -Part 15, Subpart B, for Class B Equipment -Personal computers and peripherals The product listed above has been tested at an External Test Laboratory certified per FCC rules and has been found to meet the FCC, Part 15, Class B, Emission Limits. Documentation is on file and available from the Digi International Homologation Department. Sigma Pumps Gen V 802.11abgn Module FCC ID: MCQ-50M2100. Manufacturer's Name: Digi International Inc. Corporate 9350 Excelsior Blvd. Headquarters: Suite 700 Hopkins, MN 55343 Manufacturing: 10000 West 76th Street Eden Prairie MN 55344

Section 2.911(d)(5)(i) Certification – Equipment Type Company Name: Digi International Inc Address: 9350 Excelsior Blvd. Suite 700, Hopkins, Minnesota 55343 USA Product Name: SIGMA PUMPS GEN V FCC ID: MCQ-50M2100 Model(s): 50002100-01 2.911(d)(5)(i) Equipment Type We, [Insert applicant name] (“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, 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Name: Bill Kumpf Date:18 July 2023 Title and Company name: Sr Principal Electrical Engineer / Digi International Inc 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-communications-supply-chain-through-the

Section 2.911(d)(5)(ii) Certification – Applicant (Covered List) Company Name: Digi International Inc Address: 9350 Excelsior Blvd. Suite 700, Hopkins, Minnesota 55343 USA Product Name: SIGMA PUMPS GEN V FCC ID: MCQ-50M2100 Model(s): 50002100-01 2.911(d)(5)(ii) Applicant filing We, Digi International Inc (“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, 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Name: Bill Kumpf Date: 24 July 2023 Title and Company name: Sr Principal Electrical Engineer / Digi International Inc 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-communications-supply-chain-through-the

Section 2.911(d)(7) USA Agent for Service of Process Company Name: Digi International Inc Address: 9350 Excelsior Blvd. Suite 700, Hopkins, Minnesota 55343 USA Product Name: SIGMA PUMPS GEN V FCC ID: MCQ-50M2100 Model(s): 50002100-01 2.911(d)(7) USA Designated Agent for Service of Process We, Digi International Inc. (“the applicant”) designate Digi International Inc. 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: Digi International Inc USA Address: 9350 Excelsior Blvd. Suite 700, Hopkins, Minnesota 55343 USA FRN Number: 0010283307 Contact Name: Bill Kumpf Telephone No: 952-912-3183 Email: [email protected] Applicant Company Name: Digi International I Address: 9350 Excelsior Blvd. Suite 700, Hopkins, Minnesota 55343 USA FCC Grantee Code: MCQ Contact Name: Bill Kumpf Telephone No: 952-912-3183 Email: [email protected] Signature: 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Title: Senior Principal Electrical Engineer Signature: 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Title: Senior Principal Electrical Engineer Date: 26 July 2023 Date: 26 July 2023

Ag e n t Authorization Company: DIGI International Inc. Address: 9350 Excelsior Blvd., Suite 700, Hopkins, MN 55343 USA Product Name: SIGMA PUMPS GEN V Model Number(s): 50002100-01 Product Description: SIGMA PUMPS GEN V 802.11abgn Module 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: 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Date: 10 July 2023 Name: Bill Kumpf Title: Senior Principal Electrical Engineer Company: DIGI International Inc.

Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 18 July 2023 Subject; Modular Transmitter Application Company name: Digi International Inc. FCC ID: MCQ-50M2100 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: MCQ-50M2100 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. All related RF circuitry is contained within a metal 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. All modulation/data inputs are isolated by a series resistor for each signal. All inputs terminate at an integrated digital controller. The module must contain power supply regulation on the module. The module has an integrated 3.3V voltage regulator that powers the module. 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). The module contains an integrated PCB dipole antenna The module must demonstrate compliance in a stand-alone configuration. All certification testing was done with the module in a standalone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). There is a label attached to the RF shield that has the FCC ID MCQ-50M2100 printed on it The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The module is compliant. The module must comply with RF exposure requirements The module meets or exceeds the RF exposure requirements 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; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules Section 7.3.3.6.1.1 2.3 Summarize the specific operational use conditions Section 7.3 2.4 Limited module procedures N/A 2.5 Trace antenna designs Sections 7.3.2.2, 7.3.3.3 2.6 RF exposure considerations Sections 7.5.2, 7.5.3,7.5.4 2.7 Antennas Sections 7.3.2.2, 7.3.3.3 2.8 Label and compliance information Section 7.6.8 2.9 Information on test modes and additional testing requirements N/A 2.10 Additional testing, Part 15 Subpart B disclaimer Section 7.3.4 Name: Bill Kumpf Date: 18 July 2023 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Title: Sr Principal Electrical Engineer

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 18 July 2023 Subject; Request for Confidentiality FCC ID: MCQ-50M2100 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 UNII Software Security 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: 퓑퓑퓑퓑퓑퓑퓑퓑 퓚퓚퓚퓚퓚퓚퓚퓚퓚퓚 Name: Bill Kumpf Title: Sr Principal Electrical Engineer

PHOTOS – EXTERNAL/INTERNAL Company: Digi International Product Name: Sigma Pumps Gen V 802.11abgn Module Report No.: DIGI107 – External/Internal Photos Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 2 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com 1. External/Internal Photographs 1.1.1. Product Back View Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 3 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com Front View Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 4 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com Front View Shields Removed 575 Boulder Court Pleasanton, California 94566, USA Tel: +1 (925) 462 0304 Fax: +1 (925) 462 0306 www.micomlabs.com

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PHOTOS – EXTERNAL/INTERNAL Company: Digi International Product Name: Sigma Pumps Gen V 802.11abgn Module Report No.: DIGI107 – External/Internal Photos Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 2 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com 1. External/Internal Photographs 1.1.1. Product Back View Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 3 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com Front View Title: DIGI107 External/Internal Photos To: Serial #: Issue Date: 13 March 2023 Page: 4 of 5 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com Front View Shields Removed 575 Boulder Court Pleasanton, California 94566, USA Tel: +1 (925) 462 0304 Fax: +1 (925) 462 0306 www.micomlabs.com

MPE/RF EXPOSURE EVALUATION REPORT FCC CFR 47 Part 1.1310 Report No.: DIGI107-U7 Rev A Company: Digi International Model Name: SIGMA PUMPS GEN V MPE/RF EXPOSURE EVALUATION REPORT Company: Digi International Model Name: SIGMA PUMPS GEN V To: FCC CFR 47 Part 1.1310 Test Report Serial No.: DIGI107-U7 Rev A This report supersedes: NONE Applicant: Digi International 9350 Excelsior Blvd Hopkins, Minnesota 55343 USA Issue Date: 1st November 2023 This Test Report is Issued Under the Authority of: MiCOM Labs, Inc. 575 Boulder Court Pleasanton California 94566 USA Phone: +1 (925) 462-0304 Fax: +1 (925) 462-0306 www.micomlabs.com MiCOM Labs is an ISO 17025 Accredited Testing Laboratory Title: Digi International SIGMA PUMPS GEN V To: FCC CFR 47 Part 1.1310 Serial #: DIGI107-U7 Rev A Issue Date: 1st November 2023 Page: 3 of 4 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com 1. MAXIMUM PERMISSABLE EXPOSURE Calculations for Maximum Permissible Exposure Levels Power Density = Pd (mW/cm 2 ) = EIRP/(4*π*d 2 ) EIRP = P * G P = Peak output power (mW) G = Antenna numeric gain (numeric) d = Separation distance (cm) Numeric Gain = 10 ^ (G (dBi)/10) The calculations in the table below use the highest conducted power values together with the lowest antenna gain specified for the EUT. These calculations represent worst case in terms of the exposure levels. Frequency Band (MHz) Ant Gain (dBi) Numeric Gain (numeric) Peak Output Power (dBm) Peak Output Power (mW) Calculated Power Density (mW/cm 2 ) @ 20cm Power Density Limit (mW/cm 2 ) Min Calculated safe distance for Limit (cm) 2400.0 - 2483.5 2.00 1.58 17.75 59.57 0.19 1.00 2.741 5150.0 - 5250.0 2.00 1.58 12.81 19.10 0.06 1.00 1.552 5250.0 - 5350.0 2.00 1.58 12.65 18.41 0.06 1.00 1.524 5470.0 - 5725.0 2.00 1.58 11.62 14.52 0.05 1.00 1.353 5725.0 - 5850.0 2.00 1.58 12.61 18.24 0.06 1.00 1.517 Note: for mobile or fixed location transmitters the minimum separation distance is 20cm, even if calculations indicate the MPE distance to be less. Specification - Maximum Permissible Exposure Limits The Limit is defined in Table 1 of FCC §1.1310. 575 Boulder Court Pleasanton, California 94566, USA Tel: +1 (925) 462 0304 Fax: +1 (925) 462 0306 www.micomlabs.com

REGULATORY COMPLIANCE TEST REPORT FCC Part 15 Subpart C 15.247 (DTS) ISED RSS-247 Issue 2 Report No.: DIGI107-U4 Rev A Company: Digi International Model Name: SIGMA PUMPS GEN V REGULATORY COMPLIANCE TEST REPORT Company Name: Digi International Model Name: SIGMA PUMPS GEN V To: FCC Part 15 Subpart C 15.247 (DTS) & ISED RSS-247 Issue 2 Test Report Serial No.: DIGI107-U4 Rev A This report supersedes: NONE Applicant: Digi International 9350 Excelsior Blvd Hopkins, Minnesota 55343 USA Issue Date: 1st November 2023 This Test Report is Issued Under the Authority of: MiCOM Labs, Inc. 575 Boulder Court Pleasanton California 94566 USA Phone: +1 (925) 462-0304 Fax: +1 (925) 462-0306 www.micomlabs.com MiCOM Labs is an ISO 17025 Accredited Testing Laboratory Title: Digi International SIGMA PUMPS GEN V To: FCC Part 15 Subpart C 15.247 (DTS), ISED RSS-247 Issue 2 Serial #: DIGI107-U4 Rev A Issue Date: 1st November 2023 Page: 3 of 120 This test report may be reproduced in full only. The document may only be updated by MiCOM Labs personnel. All changes will be noted in the Document History section of the report. MiCOM Labs, 575 Boulder Court, Pleasanton, California 94566 USA, Phone: +1 (925) 462 0304, Fax: +1 (925) 462 0306, www.micomlabs.com Table of Contents 1. ACCREDITATION, LISTINGS & RECOGNITION ................................................................................ 4 1.1. TESTING ACCREDITATION ........................................................................................................ 4 1.2. RECOGNITION ............................................................................................................................. 5 1.3. PRODUCT CERTIFICATION ........................................................................................................ 6 2. DOCUMENT HISTORY ......................................................................................................................... 7 3. TEST RESULT CERTIFICATE ............................................................................................................. 8 4. REFERENCES AND MEASUREMENT UNCERTAINTY ..................................................................... 9 4.1. Normative References .................................................................................................................. 9 4.2. Test and Uncertainty Procedure ................................................................................................. 10 5. PRODUCT DETAILS AND TEST CONFIGURATIONS ..................................................................... 11 5.1. Technical Details ......................................................................................................................... 11 5.2. Scope Of Test Program .............................................................................................................. 12 5.3. Equipment Model(s) and Serial Number(s) ................................................................................. 13 5.4. Antenna Details ........................................................................................................................... 13 5.5. Cabling and I/O Ports .................................................................................................................. 13 5.6. Test Configurations .....................................................................…

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