2AZEH-AMU900900 MHz ISM Band Spread Spectrum Transceiver

106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary MLink Ultra User’s Guide Revision – Draft Apr 1, 2021 MLink Ultra User’s Guide Page 2 4/1/2021 1:39 PM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary Table of Contents 1 LEGAL DISCLAIMER AND CONDITIONS OF USE ............................................................... 2 2 REVISION HISTORY ............................................................................................................... 3 3 ABBREVIATIONS .................................................................................................................... 3 4 REFERENCE DOCUMENTS .................................................................................................. 3 5 PRODUCT OVERVIEW ........................................................................................................... 4 6 FEATURES .............................................................................................................................. 4 7 SPECIFICATIONS ................................................................................................................... 4 7.1 PHYSICAL ............................................................................................................................ 4 7.2 ELECTRICAL ........................................................................................................................ 4 7.3 DATA RATES ....................................................................................................................... 5 7.4 INTERFACES ........................................................................................................................ 5 7.5 FIRMWARE .......................................................................................................................... 5 7.6 ENVIRONMENTAL ................................................................................................................. 5 8 REGULATORY CERTIFICATION ........................................................................................... 5 8.1 UNITED STATES (FCC) ........................................................................................................ 5 8.1.1 Labeling Requirements ................................................................................................ 5 8.1.2 FCC Notices ................................................................................................................ 6 8.2 CANADA (IC) ....................................................................................................................... 6 8.3 APPROVED ANTENNAS ......................................................................................................... 7 8.3.1 Integral PCB Antenna .................................................................................................. 7 8.3.2 External Antenna ......................................................................................................... 8 9 INTEGRATION INSTRUCTIONS ............................................................................................ 9 9.1 MOUNTING ........................................................................................................................ 10 9.2 INTERFACES ...................................................................................................................... 11 1 Legal Disclaimer and Conditions of Use This document contains information for the MLink Ultra Transceiver and accompanying accessories (“Product”) and is provided “as is”. The purpose of providing such information is to enable a Product Developer to understand the Product and how to integrate it into a wireless data solution. Reasonable effort has been made to make the information in this document reliable and consistent with specifications, test measurements and other information. However, Aurora Wireless Networks Inc. and its affiliated companies, directors, officers, employees, agents, trustees or consultants (“Aurora Wireless Networks Inc”) assume no responsibility for any typographical, technical, content or other inaccuracies in this document. Aurora Wireless Networks Inc reserves the right in its sole discretion and without notice to you to change Product specifications and materials and/or revise this document or withdraw it at any time. The Product Developer assumes the full risk of using the Product specifications and any other information provided. Your use of the information contained in this Guide is restricted to the development activity authorized under the agreement(s) between you and Aurora Wireless Networks Inc, and is otherwise subject to all applicable terms and conditions of such agreement(s), including without limitation software license, warranty, conditions of use and confidentiality provisions. MLink Ultra User’s Guide Page 3 4/1/2021 1:39 PM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary 2 Revision History Revision Date Description Draft Apr 1, 2021 Initial release 3 Abbreviations Abbreviation Description A/D Analog to Digital ATTN Attenuator Aux Auxiliary BSL Boot Strap Loader CLK Clock CS (nCS) Chip Select (not Chip Select) CTS Clear to Send EN Enable FCC Federal Communications Commissions GPIOD General Purpose Input/Output Digital HCR Hardware Configuration Resistor I2C Inter-Integrated Circuit IC Industry Canada IRQ Interrupt Request LNA Low Noise Amplifier MOSI Master Out Slave In MISO Master In Slave Out PA Power Amplifier PCB Printed Circuit Board PWM Pulse Width Modulated RBW Resolution Bandwidth RF Radio Frequency RST (nRST) Reset (not Reset) RTC Real Time Clock RTS Request to Send Rx Receive RxD Receive Data SCK Serial Clock SDA Serial Data SPI Serial Peripheral Interface…

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AURORA WIRELESS NETWORK INC. FCC ID: 2AZEH-AMU900 IC: 27118-AMU900 Module Photographs TOP VIEW BOTTOM VIEW

106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary MLink Ultra FCC and IC Labels Revision – Rev 1 Apr 22, 2021 FC & IC Labels Page 2 4/22/2021 4:10 PM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary Table of Contents 1 REVISION HISTORY ............................................................................................................... 2 2 ABBREVIATIONS .................................................................................................................... 2 3 REFERENCE DOCUMENTS .................................................................................................. 2 4 INTRODUCTION ...................................................................................................................... 2 5 LABEL ...................................................................................................................................... 2 6 COMPLIANCE STATEMENT .................................................................................................. 3 7 EXAMPLE PICTURE ............................................................................................................... 4 8 REVISIONS .............................................................................................................................. 4 1 Revision History Revision Date Description Draft Apr 1, 2021 Initial release Rev 1 Apr 22, 2021 Updated picture example picture. The details of each revision are captured in Revision Details Section 6. 2 Abbreviations Abbreviation Description FCC Federal Communications Commissions IC Industry Canada 3 Reference Documents 1. AMU900 Label.jpg 4 Introduction This document contains information regarding the FCC and IC labels for the Aurora Wireless Networks MLink Ultra 900 MHz transceiver as part of the FCC & IC submission. 5 Label The MLink module is < 2” x 2” and therefore too small accommodate the compliance statement. Therefore the compliance statement is captured on final product or User’s Guide. Below is a sketch of the Label. FC & IC Labels Page 3 4/22/2021 4:10 PM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary Figure 5.1 – FCC & IC Label 6 Compliance Statement The following compliance statement will be captured on the exterior of the final product or in the User’s Guide. Manufacturer’s name Brand name or Trade Name Contains MLink Ultra 900 FCC ID: 2AZEH-AMU900 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interferences, and (2) this device must accept any interference received, including interference that may cause undesired operation. Figure 6.1 – FCC Label FCC ID: 2AZEH-AMU900 IC: 27118-AMU900 Made in Canada Model: AMU900 ######## 1.0” 0.5" FC & IC Labels Page 4 4/22/2021 4:10 PM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary 7 Example Picture Example picture of the label location on the module is shown below. Picture 7.1 – MLink Ultra with FCC & IC Label 8 Revisions 8.1 Draft to Rev 1 Section 7  Apr 22, 2021: Updated Picture 7.1 to include IC number which was not available previously.

AURORA WIRELESS NETWORK INC. FCC ID: 2AZEH-AMU900 IC: 27118-AMU900 Module Photographs TOP VIEW BOTTOM VIEW

106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary Maximum Permitted Exposure Revision – Draft Mar 29, 2021 MPE Page 2 4/1/2021 10:39 AM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary Table of Contents 1 REVISION HISTORY ............................................................................................................... 2 2 ABBREVIATIONS .................................................................................................................... 2 3 REFERENCE DOCUMENTS .................................................................................................. 3 4 INTRODUCTION ...................................................................................................................... 3 5 GENERAL INFORMATION ..................................................................................................... 3 6 ANTENNA ................................................................................................................................ 3 6.1 INTEGRAL PCB ANTENNA .................................................................................................... 3 6.2 EXTERNAL YAGI ANTENNA ................................................................................................... 3 7 OPERATING CONFIGURATION AND EXPOSURE CONDITIONS ....................................... 3 8 MPE CALCULATION ............................................................................................................... 4 9 CONCLUSION ......................................................................................................................... 4 10 REVISIONS .......................................................................................................................... 4 1 Revision History Revision Date Description Draft Mar 29, 2021 Initial release The details of each revision are captured in Revision Details Section 6. 2 Abbreviations Abbreviation Description ATTN Attenuator FCC Federal Communications Commissions IC Industry Canada LNA Low Noise Amplifier PA Power Amplifier RBW Resolution Bandwidth RF Radio Frequency Rx Receive SW Software TBC To Be Confirmed TBD To Be Determined TRP Total Radiated Power Tx Transmit TDD Time Division Duplex MPE Page 3 4/1/2021 10:39 AM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary 3 Reference Documents 1. MLink PCB Antenna Specification – Draft, Mar 29, 2021 2. A09-Y8NF Yagi Antenna datasheet – May 2003 (A09-Y8NF.pdf) 3. MLink Ultra Functional Circuit Description – Draft, Mar 29, 2021 4 Introduction This document shows how compliance with maximum RF exposure is met by the MLink Ultra module operating under FCC 15.247 and RSS 210 with an integral PCB antenna and an external Yagi antenna. 5 General Information Device category: Mobile with integral PCB antenna Fixed with external Yagi antenna Environment: Uncontrolled exposure in general public (uncontrolled environment) for integral PCB antenna and external Yagi antenna 6 Antenna The MLink module is design for used with two antenna types - an integral PCB antenna and an external Yagi antenna. 6.1 Integral PCB Antenna The integral PCB antenna is a custom design specifically for use with the MLink Ultra module with a measured peak gain of 2 dBi (Ref 1). Configuration Antenna Polarization Type Freq. Band Max. Gain (dBi) Mobile or Fixed Vertical Omni 900 MHz 2 6.2 External Yagi Antenna The external Yagi antenna is made by several manufacturers (MaxStream Inc (A08-Y8NF) and Laird Technologies (PC904)) with a gain of 4.8 dBd (7 dBi) including a 1.2 dB min cable loss. Configuration Antenna Polarization Type Freq. Band Max. Gain (dBi) Fixed Vertical Yagi 900 MHz 7 7 Operating Configuration and Exposure Conditions The max conducted power for the MLink Ultra module is 29 dBm with a 50% max duty cycle (max TX of 100 ms followed by 100 ms RX). The integral PCB antenna is directly connected to the MLink Ultra module through 50 Ω microstrip track, while the external Yagi antenna is connected through a 50 Ω RF cable. MPE Page 4 4/1/2021 10:39 AM 106, 4715 - 13th St. NE, Calgary, Alberta, Canada, T2E 6M3 (403) 777-9988 [email protected] Confidential and Proprietary 8 MPE Calculation From FCC 1.1311 Table 1(B) and RSS-102 section 4.2 the MPE is 0.6 mW/cm 2 max @ 900 MHz. The MPE at 20 cm is separation is calculated as follows: MLink 900 module conducted TX power 29 dBm = 800 mW With 50% duty cycle 800 mW x 50% = 400 mW Spherical surface area with a 20 cm radius 4πr 2 = 5000 cm 2 For an isotropic antenna the RF intensity at 20 cm is 400 mW / 5000 cm 2 = 0.08 mW/cm 2 For the Integral Antenna with max 2 dBi gain (1.58 linear gain) the max RF intensity at 20 cm is 0.08 mW/cm 2 x 1.58 = 0.13 mW/cm 2 @ 20 cm separation which is less than the 0.6 mW/cm 2 max @ 20 cm specification Similarly for the external Yagi Antenna with max 7 dBi gain (5 linear gain) the max RF intensity at 20 cm is 0.08 mW/cm 2 x 6 = 0.4 mW/cm 2 @ 20 cm separation which is less than the 0.6 mW/cm 2 max @ 20 cm specification 9 Conclusion The MLink Ultra module complies with the MPE requirements for both the integral PCB antenna (section 6.1) and the external Yagi antenna (section 6.2) with a minimum 20 cm separation between the antenna and the user in normal operation. 10 Revisions

Timco Test Report # TR_1353-21_FCC_15.247_4 Revision: 4 Issue Date: May 20, 2021 Final Test Date: April 19, 2021 An IIA Company Te s t Report - FCC PART 15.247 Prepared For: Aurora Wireless Network Inc. Approved for Release By: Signature: Name & Title: Bruno Clavier, General Manager Date of Signature (YYYY-MM-DD): 2021-05-20 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc. (IIA). This test report relates only to the items tested as identified and is not valid for any subsequent changes or modifications made to the equipment under test. Timco Engineering, Inc., an IIA Company 849 NW State Road 45, Newberry, Florida 32669 (352) 472-5500 / [email protected] Page 2 of 39 This test report shall not be reproduced except in full without the written and signed permission of Timco Engineering Inc. (IIA). Table of Contents 1. CUSTOMER INFORMATION ........................................................................................................................................................................... 4 1.1 TEST RESULT SUMMARY ............................................................................................................................................................................................4 2. LOCATION OF TESTING ................................................................................................................................................................................. 6 2.1 TEST LABORATORY .................................................................................................................................................................................................... 6 2.2 TESTING WAS PERFORMED, REVIEWED BY ................................................................................................................................................................ 6 3. TEST SAMPLE(S) (EUT/DUT) ........................................................................................................................................................................... 7 3.1 DESCRIPTION OF THE EUT ........................................................................................................................................................................................ 7 3.2 CONFIGURATION OF EUT ......................................................................................................................................................................................... 8 3.3 TEST SETUP OF EUT .................................................................................................................................................................................................. 8 4. TEST METHODS & APPLICABLE REGULATORY LIMITS ............................................................................................................................ 9 4.1 TEST METHODS/STANDARDS/GUIDANCE: ............................................................................................................................................................... 9 4.2 APPLIED LIMITS AND REGULATORY LIMITS: .............................................................................................................................................................. 9 5. MEASUREMENT UNCERTAINTY .................................................................................................................................................................... 9 6. ENVIRONMENTAL CONDITIONS ................................................................................................................................................................. 9 6.1 TEMPERATURE & HUMIDITY ...................................................................................................................................................................................... 9 7. LIST OF TEST EQUIPMENT AND TEST FACILITY ...................................................................................................................................... 10 7.1 LIST OF TEST EQUIPMENT ....................................................................................................................................................................................... 10 8. TEST RESULTS .................................................................................................................................................................................................. 11 8.1 HOPPING CHARACTERISTICS ................................................................................................................................................................................... 12 8.1.1 Hopping Channel Occupancy Time .................................................................................................................................................. 12 8.1.2 Carrier Frequency Separation Plot .................................................................................................................................................... 13 8.1.3 Number of Hopping Frequencies Plot .............................................................................................................................................. 14 8.1.4 Time of Occupancy Plot ....................................................................................................................................................................... 15 8.1.5 Hops in 10 s Plot ..................................................................................................................................................................................... 16 8.2 OCCUPIED BANDWIDTH .......................................................................................................................................................................................... 17 8.2.1 20 dB Bandwidth, 903 MH…

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ANNEX A – Test Setup Photograph Exhibit Aurora Wireless Network Inc. FCC ID: 2AZEH-AMU900 IC: 27118-AMU900 MODEL: AMU900 Radiated Test Setup Radiated Testing, Above 1 GHz Radiated Testing, Below 1 GHz Radiated Testing, Below 1 GHz #2