2AEMI-B404XB404X SoM

B404X Datasheet This is a graphic of the B404. The B404X has the same exterior dimensions but the appearance may vary slightly from this graphic. Functional description The B Series System-on-a-Module (SoM) is a cellular device with support for BLE (Bluetooth LE). It is based on the Nordic nRF52840 micro-controller. The B Series is designed to be integrated into your circuit board design, plugging into a M.2 NGFF connector on your board, allowing the module to be changed or upgraded easily. Features - B404X u-blox SARA-R510S-01B LTE modem (B404X) LTE Cat M1 module Support for United States, Canada, and Mexico only 3GPP Release 14 LTE Cat M1 Cat M1 bands: 1, 2, 3, 4, 5, 8, 12, 13, 18, 19, 20, 25, 26, 28, 66, 71, 85 1 Embedded Particle EtherSIM (B404X) Requires Device OS 4.0.0 LTS (or later) 1 Not all bands enabled in software by default Features - All Models Nordic Semiconductor nRF52840 SoC ARM Cortex-M4F 32-bit processor @ 64MHz 1MB flash, 256KB RAM Bluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 Kbps Supports DSP instructions, HW accelerated Floating Point Unit (FPU) calculations ARM TrustZone CryptoCell-310 Cryptographic and security module Up to +8 dBm TX power (down to -20 dBm in 4 dB steps) NFC-A tag On-module additional 4MB SPI flash 24 mixed signal GPIO (8 x Analog, 8 x PWM), UART, I2C, SPI USB 2.0 full speed (12 Mbps) JTAG (SWD) pins RGB status pins for LED Reset and Mode pins for buttons On-module MFF2 Particle SIM Two on-module U.FL connectors for external antennas M.2 interface FCC and PTCRB certified RoHS compliant (lead-free) OVERVIEW FEATURES Interfaces VCC VCC is used to supply power to the u-blox SARA-R410M/R410S cellular module. The recommended input voltage range on this pin is between 3.6V to 4.2V DC. Make sure that the supply can handle currents of at least 2 A. 3V3 3V3 is used to supply power to nRF52840, logic ICs, memory, etc.. The 3V3 input voltage range is between 3V to 3.6V DC, but 3.3V is recommended. Make sure that the supply can handle at least 150 mA, however it may need to be larger than that if you have additional 3.3V peripherals on your base board. We do not recommend using a single 3.6V supply for both VCC and 3V3 as the cellular modem performance may be lower below 3.7V. Use two separate regulators for best results. VBus VBus is connected to the USB detect pin of nRF52840 to enables the USB interface. The recommended input voltage range is between 4.35V to 5.5V DC. BLOCK DIAGRAM POWER There are two radios on the B402 module. A BLE radio (nRF52840) and a cellular radio (u-blox). We have provided two u.FL connectors to plug in the cellular and BLE antenna. These are required if you wish to use the cellular and BLE. If you do not need BLE, you do not need to connect the BLE antenna. Certified Cellular Antenna AntennaSKUDetailsLinks Wide band LTE-CAT M1 cell antenna, [x1]PARANTC41EAB404X, BRN404X, and E404XDatasheet Wide band LTE-CAT M1 cell antenna, [x50]PARANTC41TYB404X, BRN404X, and E404XDatasheet General Antenna Guidance The antenna placement needs to follow some basic rules, as any antenna is sensitive to its environment. Mount the antenna at least 10mm from metal components or surfaces, ideally 20mm for best radiation efficiency, and try to maintain a minimum of three directions free from obstructions to be able to operate effectively. Needs tuning with actual product enclosure and all components. For the BLE antenna, it is recommended to use a 2.4 GHz single-frequency antenna and not a 2.4 GHz + 5 GHz antenna, so as to avoid large gain at the frequency twice of 2.4 GHz which can cause the second harmonic radiation of 2.4 GHz to exceed standards. Peripheral TypeQtyInput(I) / Output(O) Digital24 (max)I/O Analog (ADC)8 (max)I UART1I/O SPI2I/O I2C2I/O USB1I/O PWM8 (max)O NFC1O There are some optional B402 module specific I/O: u-blox USB and VBUS (for u-blox firmware upgrades) Note: All GPIOs are only rated at 3.3VDC max. The B402 module has 4 pads at the bottom exposing the SWD interface of the nRF52840. This interface can be used to debug your code or reprogram your B402 bootloader, device OS, or the user firmware. We use 4 pogo-pins connecting to these pads during production for firmware flashing. ANTENNA PERIPHERALS AND GPIO JTAG AND SWD Memory map Bootloader (48KB, @0xF4000) User Application 256KB @ 0xB4000 (Device OS 3.1 and later) 128KB @ 0xD4000 (Device OS 3.0 and earlier) System (656KB, @0x30000) SoftDevice (192KB) OTA (1500KB, @0x00289000) Reserved (420KB, @0x00220000) FAC (128KB, @0x00200000) LittleFS (2M, @0x00000000) NRF52840 FLASH LAYOUT OVERVIEW EXTERNAL SPI FLASH LAYOUT OVERVIEW (DFU OFFSET: 0X80000000) Pins and button definitions Pins SOM0 to SOM9 will vary across various SoM modules. For example, cellular-specific pins exists in this range. Additionally there are RESERVED 3 pins, whose functions vary depending on the SoM. For example, nRF52 MCU-based modules use some of these pins for additional ADC and GPIO. They are able to be used as described on the B402, but their function may be be different on future modules. For maximum cross-module flexibility, you should try to use only the common pins when possible. Pin NameModule PinMCU A0 / D1923ADC1 P0.3 A1 / D1833ADC2 P0.4 A2 / D1735ADC4 P0.28 A3 / D1637ADC5 P0.29 A4 / D1541ADC6 P0.30 A5 / D1443ADC7 P0.31 A645ADC3 P0.5 A747ADC0 P0.2 Cellular Modem USBD-46 Cellular Modem USBD+44 Cellular Modem VBUS74 D022 Wire (SDA) P0.26 D120 Wire (SCL) P0.27 D242 Wire1 (SDA)SPI1 (SCK)Serial1 RTSP1.02 PINOUT DIAGRAM GPIO AND PORT LISTING D2262 P0.24 D2364 P1.09 D340 Wire1 (SCL)SPI1 (MOSI)Serial1 CTSP1.01 D466 SPI1 (MISO) P1.08 D568 P1.10 D670 P1.11 D772 P1.12 D848 SPI (SS) P1.03 MISO / D1150 SPI (MISO) P1.14 MOSI / D1252 SPI (MOSI) P1.13 NC14 NC75 NFC117 P0.9 NFC219 P0.10 RGBB65 P0.15 RGBG63 P0.14 RGBR61 P0.13 RX / D1038 Serial1 RXP0.08 SCK / D1354 SPI (SCK) P1.15 SIM_CLK71 SIM_DATA73 SIM_RST69 SIM_VCC67 TX / D936 Serial1 TXP0.06 USBDATA-13 USBDATA+11 VUSB16 The B404X supports 8 ADC inputs. PinPin NameDescrip…

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Letter of Authorization and Anti-Drug Statement Applicant Name:Particle Industries, Inc. Address:325 9th Street, San Francisco, CA 94103 Product Name:B Series B404X Model Number:B404X FCC ID:2AEMI-B404X We authorize: CETECOM Inc., to act on our behalf on all matters concerning the above named equipment. We declare that CETECOM Inc. is allowed to forward all information related to the approval project to the Federal Communications Commission and discuss any issues concerning the approval application. The applicant must certify that neither the applicant nor any party to the application is subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. Does the applicant or authorized agent so certify? ☑ Yes I certify that I am authorized to sign this application. All of the statements herein and the exhibits attached hereto, are true and correct to the best of my knowledge and belief. In accepting a Grant of Equipment Authorization as a result of the representations made in this application, the applicant is responsible for (1) labeling the equipment with the exact FCC ID specified in this application, (2) compliance statement labeling pursuant to the applicable rules, and (3) compliance of the equipment with the applicable technical rules. If the applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC's technical requirements. Authorizing an agent to sign this application, is done solely at the applicant's discretion; however, the applicant remains responsible for all statements in this application. If an agent has signed this application on behalf of the applicant, a written letter of authorization which includes information to enable the agent to respond to the above section 5301 (Anti-Drug Abuse) Certification statement has been provided by the applicant. It is understood that the letter of authorization must be submitted to the FCC upon request, and that the FCC reserves the right to contact the applicant directly at any time. Signature of Authorized Person Filing: Zach Supalla Title: CEO Date: September 14, 2022 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

Particle Industries, Inc 325 9th Street San Francisco, CA 94103 Date: February 21, 2023 Federal Communication Commission 7435 Oakland Mills Road Columbia, MD 21048 Subject:Attestation Statement according to 2.911(d)(5)(i) and 2.911(d)(5)(ii) FCC ID: 2AEMI-B404X To Whom It May Concern: Particle Industries, Inc. hereby certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving and equipment authorization pursuant to section 2.903 of the FCC rules. Further, we certify that, as of the date of the filing of the application, Particle Industries, Inc. is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Zach Supalla CEO 325 9th St San Francisco, CA 94103(415) 316-1024 •[email protected]

Date: September 14, 2022 Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 Subject: Validity of Test Results from Testing / Certification of the Integrated Module To Whom It May Concern: We, Particle Industries, Inc., hereby declare that that the test results from conducted tests applied to the radio module: Manufacturer:u-blox Model:SARA-R510M8S FCC ID:XPYUBX19KM01 IC:8595A-UBX19KM01 which is incorporated in our host equipment: Manufacturer:Particle Industries, Inc. Model:B Series B404X FCC ID:2AEMI-B404X IC:20127-B404X and as reported in module test report(s): Report Number:MDE_UBLOX_2105_MPE02#CAT-M1, IssueDate: 08/11/2021 (FCC Part 22, 24, 27, 90) accurately represent the test results under the new conditions when the identified radio module is integrated in the identified host equipment. By integration of said radio module into the identified host equipment no changes were made to it or by external adaptation circuitry that impacts the validity of the results of the original module’s test reports; hence conducted signal measurements in the above listed reports also apply toB Series B404X. Sincerely, Zach Supalla CEO 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

Date:April7,2023 FederalCommunicationCommission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21048 Subject:USAgentAttestationStatement FCCID:2AEMI-B404X To whom it may concern: This letter is to certify that, as of the date of the filing of this statement with the TCB, Particle Industries, Inc. (“Applicant”) accepts responsibilities to act as its own agent pursuant to 47 CFR part §2.911(d)(7) of the FCC rules for service of process for the above referenced FCC ID. Particle Industries, Inc. acknowledges the requirement to maintain an agent extends for no less than one year after the termination of all marketing and importation or the conclusion of any commission-related proceeding involving the equipment. Applicant Information Company Name:Particle Industries, Inc. FCC Registration Number (FRN): 0024539330 Contact Name:Zach Supalla Address:325 9th Street, San Francisco, CA 94103 Telephone No:(415) 316-1024 Email:[email protected] Sincerely, Zach Supalla CEO 325 9th St San Francisco, CA 94103(415) 316-1024 •[email protected]

Date: September 14, 2022 Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 Subject:Request for Permanent Confidentiality FCC ID: 2AEMI-B404X To Whom It May Concern: In accordance with §0.457(d) and §0.459 of CFR 47, and KDB 726920, Particle Industries, Inc. hereby requests permanent confidentiality for documents filed under the following exhibit types: ●Parts List & Placement/BOM ●Operational Description ●Tune-up Procedure These items contain detailed system and equipment description and related information about the product which Particle Industries, Inc. considers to be proprietary, confidential and a custom design which otherwise would not be released to the general public. Since this design is a basis from which future technological products will evolve, Particle Industries, Inc. also feels that this information would be of benefit to its competitors, and that the disclosure of the information in these exhibits would give our competitors an unfair advantage in the market. We are aware that exhibit typescover letters, attestations,label document, test reports, RF exposure information (SAR and MPE reports), cannotbe requested to be classified confidential and are thus subject to publication, as will be documents of all other exhibit types for which we have not requested a confidentiality classification. Best Regards, Zach Supalla CEO 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

Date: September 14, 2022 Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 Subject:Request for Short Term Confidentiality FCC ID: 2AEMI-B404X To Whom It May Concern: In accordance with §0.457(d) and §0.459 of CFR 47, and KDB 726920, Particle Industries, Inc. hereby requests short term confidentiality for documents filed under the following exhibit types: ●External Photographs ●Internal Photographs ●Test Setup Photographs until the product will be publicly announced. Short term confidentiality release date / period: 180 days from grant issue date. These items contain detailed system and equipment description and related information about the product which Particle Industries, Inc. considers to be proprietary, confidential and a custom design which otherwise would not be released to the general public. Since this design is a basis from which future technological products will evolve, Particle Industries, Inc. also feels that this information would be of benefit to its competitors, and that the disclosure of the information in these exhibits would give our competitors an unfair advantage in the market. We are aware that exhibit typescover letters, attestations,label document, test reports, RF exposure information (SAR and MPE reports), cannotbe requested to be classified confidential and are thus subject to publication, as will be documents of all other exhibit types for which we have not requested a confidentiality classification. Best Regards, Zach Supalla CEO 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

Date: September 14, 2022 Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 Certification and Engineering Bureau Innovation, Science and Economic Development Canada Spectrum Engineering Branch 3701 Carling Avenue, Building 94 Ottawa, Ontario K2H 8S2 Subject: Modular Approval Statement FCC Certification Number:2AEMI-B404X ISED Certification Number:20127-B404XPMN:(Product Marketing Name)B Series B404X HVIN(Hardware Version Identification Number): v1.3.0FVIN:(Firmware Version Identification Number) v4.0.0 HMN:(Host Marketing Name) ☑Single-modulartransmitter:AcompleteRFtransmissionsub-assembly,designedtobeincorporatedintoanother device, that must demonstrate compliance with FCC rules and policies independent of any host; ☐Limitedsingle-modulartransmitter:Asingle-modulartransmitterthatcomplieswiththe§15.212(a)(1)modularrules, only when constrained to specific operating host(s) and/or associated grants condition(s); TO WHOM IT MAY CONCERN Pursuant to Paragraphs FCC part 15.212, we herewith declare for our module. Singlemodulartransmittersmustmeetallofthefollowingrequirementstoobtainamodulartransmitterapproval.Limited modular approval may be granted for single that do not comply with all of the following requirements, Single Modular approval requirementYesNo (i)Theradioelementsofthemodulartransmittermusthavetheirown shielding.Thephysicalcrystalandtuningcapacitorsmaybelocatedexternal to the shielded radio elements. Y Comment: (ii)Themodulemusthavebufferedmodulation/datainputs(ifsuchinputsare provided)toensurethatthemodulewillcomplywithpart15requirements under conditions of excessive data rates or over-modulation. Y Comment: (iii)Themoduleshallhaveitsownpowersupplyregulationonthemodule.This istoensurethatthemodulewillcomplywiththerequirementssetoutinthe applicablestandardregardlessofthedesignofthepowersupplyingcircuitryin the host device which houses the module. Y 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] Comment: (iv)Themodulemustcontainapermanentlyattachedantenna,orcontaina uniqueantennaconnector,andbemarketedandoperatedonlywithspecific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), and 15.212(a). The“professionalinstallation”provisionof§15.203isnotapplicabletomodules butcanapplytolimitedmodularapprovals.Theequipmentcertification submission shall contain i)adetaileddescriptionoftheconfigurationofhighestantennagainforeach type of antenna. ii) the maximum transmitting antenna gain for license modules iii)adetaileddescriptionoftheconfigurationoflowestantennagainforeach typeofreceivingantennaforDynamicFrequencySelection(DFS)modules with removable antenna(s) Y Comment: (v)Themoduleshallbetestedforcompliancewiththeapplicablestandardina stand-aloneconfiguration,i.e.themodulemustnotbelocatedinsideanother device during testing. Y Comment: (vi)ThemodulemustbelabelledwithitspermanentlyaffixedFCCIDlabel,or useanelectronicdisplay(SeeKDBPublication784748aboutlabelling requirements). Y Comment: (vii)Themodulartransmittermustcomplywithanyspecificrulesoroperating requirementsthatordinarilyapplytoacompletetransmitterandthe manufacturermustprovideadequateinstructionsalongwiththemoduleto explainanysuchrequirements.Acopyoftheseinstructionsmustbeincluded in the application for equipment authorization. Y Comment: (viii)ThemoduleshallcomplywithapplicableFCCRFexposurerequirements, which are based on the intended use/configurations. Y Comment: Best Regards, ______________________ Zach Supalla CEO 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

FCC ID: 2AEMI-B404X External Photographs of the EUT 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

FCC ID: 2AEMI-B404X EUT ID Label and Location ID Label - Old Logo and Branding Size: 24mm x 14mm ID Label - New Logo and Branding Size: 24mm x 14mm 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X Label Location - Affixed to RF shield cover of EUT, top side Material: High temperature label 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

FCC ID: 2AEMI-B404X Internal Photographs of the EUT 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected] FCC ID: 2AEMI-B404X 325 9th St San Francisco, CA 94103(415)316-1024 •[email protected]

Radio Frequency Exposure Evaluation Report FOR: Particle Industries, Inc. Model Number: B404X Product Description: LTE CAT-M1 (NorAm) with EtherSIM FCC ID: 2AEMI-B404X IC: 20127-B404X Per: CFR Part Part1 (1.1307 &1.1310), Part 2 (2.1091), FCC KDB 447498 D01 General RF Exposure Guidance v06 ISEDC RSS-102 Issue 5 Report number: EMC_PARTI-002-21001_FCC_ISED_MPE DATE: 2023-03-10 CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2905571 V5.0 2015-10-27 © Copyright by CETECOM Test Report #: EMC_PARTI-002-21001_FCC_ISED_MPE FCC ID: 2AEMI-B404X Date of Report 2023-03-10 Page 2 of 8 IC: 20127-B404X Page 2 of 8 1 Assessment This RF Exposure evaluation report provides evidence for compliance of the below identified device with the RF Exposure limits for mobile devices as defined in FCC CFR Part 1 (1.1307 &1.1310), Part 2 (2.1091) and IC standard RSS-102 issue 5 under worst case conditions (measured or rated RF output power, antenna gain, distance towards human body, multiple transmitter information as presented by the applicant). In addition, maximum antenna gain or minimum distance towards the human body is calculated respectively, where relevant. The device meets the limits as stipulated by the above given FCC and IC rule parts based on available specifications for worst case conditions at 20cm distance to the body. Company Description Model # Particle Industries, Inc. LTE CAT-M1 (NorAm) with EtherSIM B404X Report reviewed by: TCB Evaluator 2023-03-10 Compliance Arndt Stoecker (Director of Regulatory Services) Date Section Name Signature Responsible for the Report: 2023-03-10 Compliance Cheng Song (EMC Engineer) Date Section Name Signature Test Report #: EMC_PARTI-002-21001_FCC_ISED_MPE FCC ID: 2AEMI-B404X Date of Report 2023-03-10 Page 3 of 8 IC: 20127-B404X Page 3 of 8 2 Administrative Data 2.1 Identification of the Testing Laboratory Issuing the Test Report Company Name: CETECOM Inc. Department: Compliance Street Address: 411 Dixon Landing Road City/Zip Code Milpitas, CA 95035 Country USA Telephone: +1 (408) 586 6200 Fax: +1 (408) 586 6299 Lab Manager: Arndt Stoecker Responsible Project Leader: Phillip Quintal 2.2 Identification of the Client / Manufacturer Client’s Name: Particle Industries, Inc. Street Address: 325 9th St City/Zip Code San Francisco, CA 94103 Country USA Identification of the Manufacturer Manufacturer’s Name: Same as Client Manufacturers Address: City/Zip Code Country Test Report #: EMC_PARTI-002-21001_FCC_ISED_MPE FCC ID: 2AEMI-B404X Date of Report 2023-03-10 Page 4 of 8 IC: 20127-B404X Page 4 of 8 3 Equipment under Assessment Model Number: B404X HW Version : V1.3.0 SW Version : V4.0.0 Product Marketing Name (PMN): B Series Radio Information: Cellular:  u-blox SARA-R510S  FCC ID: XPYUBX19KM01; IC: 8595A-UBX19KM01 Bluetooth:  Nordic Semiconductor nRF52840 SoC  Bluetooth 5 LE Antenna Information: Cellular:  G142-10006-A antenna  Wide band FPC antenna: 3.86dBi max gain Bluetooth:  PCB antenna: 2dBi max gain Power Supply/ Rated Operating Voltage Range: VCC 3.6V~4.2V Typ 3.6V 3V3 3.3V~3.6V Typ 3.3V VBUS 4.35V~5.5V Typ 5V Operating Temperature Range: Normal operating temperature: Tmin: -20°C / Tmax: 65°C / Tnom: 25°C Extended operating temperature: Tmin: -40°C / Tmax: 85°C Sample Revision: Prototype Unit; Production Unit; Pre-Production Test Report #: EMC_PARTI-002-21001_FCC_ISED_MPE FCC ID: 2AEMI-B404X Date of Report 2023-03-10 Page 5 of 8 IC: 20127-B404X Page 5 of 8 4 RF Exposure Limits and FCC and IC Basic Rules For the specific described radio apparatus the following basic limits and rules apply for both, FCC and IC where not indicated differently. 4.1 Power Density Limits acc. to FCC 1.1310(e) / RSS-102 i5, cl. 4: FCC Frequency Range (MHz) Power density (mW/cm 2 ) Averaging time (minutes) 300 – 1500 f (MHz) /1500 30 1500 – 100000 1.0 30 IC 300 – 6000 0.02619 x f (MHz) 0.6834 6 4.2 Routine Environmental Evaluation Categorical Exclusion Limits acc. to FCC 2.1091(c) / RSS-102, cl. 2.5 (rounded to 1 decimal point): FCC operating frequency < 1.5GHz: excluded if ERP < 1.5W / 31.8dBm (EIRP: 33.9 dBm); operating frequency > 1.5GHz: excluded if ERP < 3.0W / 34.8dBm (EIRP: 36.9 dBm); IC 300MHz < = operating frequency < 6 GHz: excluded if EIRP < 0.0131 x f (MHz) 0.6834 W 4.3 RF Exposure Estimation (MPE Estimation) Having available the source based average output power and peak antenna gain or the ERP/EIRP of the specified device and for a known minimum distance of its radiating structures from the body of persons according to its use cases (at least 20cm) the power density at that distance can be estimated by the following formula for plane-wave equivalent conditions (far-field conditions), when ground reflection is neglected. 2 4R PG S   where: S = power density (mW/cm 2 or W/m 2 ) P = power input to the antenna (mW or W) 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 (cm or m) Test Report #: EMC_PARTI-002-21001_FCC_ISED_MPE FCC ID: 2AEMI-B404X Date of Report 2023-03-10 Page 6 of 8 IC: 20127-B404X Page 6 of 8 5 Evaluations 5.1 Analysis of RF Exposure FCC: LTE 2 Operating frequency > 1.5GHz, ERP20cm Limit = 3060mW = 3.06W Actual ERP = 0.469W < 3.06W; Excluded. LTE 4 Operating frequency > 1.5GHz, ERP20cm Limit = 3060mW = 3.06W Actual ERP = 0.469W < 3.06W; Excluded. LTE 5 Operating frequency < 1.5GHz, ERP20cm Limit = 2040 x 0.824 = 1680.96mW = 1.68W Actual ERP = 0.469W < 1.68W; Excluded. LTE 12 Operating frequency < 1.5GHz, ERP20cm Limit = 2040 x 0.699 = 1425.96mW = 1.43W Actual ERP = 0.469W < 1.43W; Excluded. LTE 13 Operating frequency < 1.5GHz, ERP20cm Limit = 2040 x 0.777 = 1585.08mW = 1.59W Actual ERP = 0.469W < 1.59W; Excluded. BLE Operating frequency > 1.5GHz, ERP20cm Limit = 3060mW = 3.…

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A2LA Accredited IC recognized # 3462B-1 CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2905571 © Copyright by CETECOM FCC / ISED Test Report For: Particle Industries, Inc. Model: B404X Product Description: LTE CAT-M1 (NorAm) with EtherSIM FCC ID: 2AEMI-B404X IC: 20127-B404X Applied Rules and Standards: 47 CFR Part 15.247 (DTS) RSS-247 Issue 2 (DTSs) & RSS-Gen Issue 5 REPORT #: EMC_PARTI-002-21001_FCC_15_247_Rev1 DATE: 2023-02-13 Test Report #: EMC_PARTI-002-21001_FCC_15_247_Rev1 FCC ID: 2AEMI-B404X Date of Report 2023-02-13 Page 2 of 45 IC: 20127-B404X TABLE OF CONTENTS 1 ASSESSMENT .............................................................................................................................................................. 3 2 ADMINISTRATIVE DATA ............................................................................................................................................... 4 2.1 IDENTIFICATION OF THE TESTING LABORATORY ISSUING THE EMC TEST REPORT ........................................................................... 4 2.2 IDENTIFICATION OF THE CLIENT ............................................................................................................................................. 4 2.3 IDENTIFICATION OF THE MANUFACTURER ................................................................................................................................. 4 3 EQUIPMENT UNDER TEST (EUT) ................................................................................................................................... 5 3.1 EUT SPECIFICATIONS ......................................................................................................................................................... 5 3.2 EUT SAMPLE DETAILS ......................................................................................................................................................... 6 3.3 ACCESSORY EQUIPMENT (AE) DETAILS ................................................................................................................................... 6 3.4 TEST SAMPLE CONFIGURATION ............................................................................................................................................. 6 3.5 JUSTIFICATION FOR WORST CASE MODE OF OPERATION ............................................................................................................ 6 4 SUBJECT OF INVESTIGATION ...................................................................................................................................... 7 5 MEASUREMENT RESULTS SUMMARY .......................................................................................................................... 7 6 MEASUREMENT UNCERTAINTY.................................................................................................................................... 8 6.1 ENVIRONMENTAL CONDITIONS DURING TESTING: ...................................................................................................................... 8 6.2 DATES OF TESTING: ............................................................................................................................................................ 8 7 MEASUREMENT PROCEDURES .................................................................................................................................... 9 7.1 RADIATED MEASUREMENT .................................................................................................................................................... 9 7.2 POWER LINE CONDUCTED MEASUREMENT PROCEDURE .......................................................................................................... 11 7.3 RF CONDUCTED MEASUREMENT PROCEDURE ....................................................................................................................... 11 8 TEST RESULT DATA .................................................................................................................................................. 12 8.1 MAXIMUM PEAK CONDUCTED OUTPUT POWER ....................................................................................................................... 12 8.2 POWER SPECTRAL DENSITY .......................................…

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