FCC ID: 2A3579160 002

nRF9160 Hardware Integration Guide v1.2 v1.2 / 2020-07-09 Contents Revision history. 1 About this document. 2 Device overview. 2.1 Operating conditions . 2.2 Bands of operation . 2.3 Supported FCC rules . 2.4 Host device manufacturer responsibility . nRF9160 module. 3.1 Block diagram . 3.2 Pin assignment . 3.3 Pin description . 4 Antennas. 4.1 Antenna interface . 4.2 Antenna port test connector . 11

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. Test modes. 5.1 BB functional test . 5.2 RF functional test . 5.2.1 RX test . 5.2.2 TX test . 5.2.3 GPS SNR test . 5.3 RF signaling test . 6 Reference circuitry. 6.1 Schematics . 6.2 PCB layout . 6.3 PCB specification . 6.4 Antenna type . 7 Regulatory information. 7.1 Certified bands . 7.2 FCC/ISED regulatory notices . iii

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. Legal notices. 25 v1.2 ii Revision history Date Version Description July 2020 April 2020 May 2019 1.2 1.1 1.0 Updated for nRF9160 B1 version Editorial changes First release v1.2 iii 1 About this document This document complements the nRF9160 Product Specification to provide recommendations and guidelines for designing devices based on the nRF9160 module. This document is intended for the customers of Nordic Semiconductor, especially device manufacturers and hardware engineers. v1.2 4 2 Device overview nRF9160 is an LTE made simple cellular IoT System in Package (SiP) module that is pre-certified for customers for building end devices on it. nRF9160 consists of an Arm Cortex- M33 microcontroller and 3GPP LTE release 13 compliant embedded Cat-M and Cat-NB LTE modem. The microcontroller has an inbuilt 1 MB flash memory, Arm TrustZone, and 32 general purpose I/O pins. The LTE modem includes transceiver with global cellular band coverage, ultra-low current consumption, and single 50 antenna interface. 2.1 Operating conditions For the nRF9160 temperature range, voltage range, and physical dimensions, see nRF9160 Product Specification. 2.2 Bands of operation For an up-to-date list of certified cellular bands, see section Regulatory certifications on the Nordic Semiconductor web page. 2.3 Supported FCC rules The nRF9160 module has been certified to comply with the following FCC rules:

47 CFR Part 22 47 CFR Part 24 47 CFR Part 27 47 CFR Part 90 47 CFR part 2.1091 FCC Part 15 Subpart B If the device manufacturer will apply the integration and test instructions of this document to the host device, then these certifications can be applied to the host device, except for FCC Part 15 Subpart B which needs to be retested. For more information, see nWP033 - nRF9160 Antenna and RF Interface Guidelines and nWP034 - nRF9160 Hardware Verification Guidelines. The host manufacturer can use nRF9160's FCC ID if the device meets the conditions of the FCC certificate. Normally, the conditions are the following:

A minimum of 20 cm distance from the human body. No colocation with other transmitters. Typically, this condition needs to be reviewed by the FCC lab. Antenna gain below the requirements. 2.4 Host device manufacturer responsibility v1.2 5 Device overview Note: The nRF9160 device is only authorized for the rules listed in Supported FCC rules on page 5. The host device manufacturer is responsible for compliance to any other FCC rules that apply to the host device not covered by the nRF9160 grant of certification. It is mandatory for the host device manufacturer to assure the final devices compliance with FCC Part 15 Subpart B even if certification has been granted to nRF9160. v1.2 6 3 nRF9160 module The nRF9160 SiP module consists of the nRF9160 System on Chip (SoC), power management and RF front-

end section, and passive and clocking components. External to the module are supply source (battery or mains), SIM solution, and any customer peripherals and sensors. For further details of blocks and their software controls and dependencies, see nRF9160 Product Specification. 3.1 Block diagram The following block diagram illustrates the nRF9160 SiP module. ETM trace ITM trace Debug nRF9160 ETM AHB-AP CPU ARM CORTEX-M33 NVIC SysTick RAM0 RAM1 RAM2 RAM3 RAM0 RAM1 RAM2 RAM3 m a s t e r s l a v e s l a v e s l a v e s l a v e s l a v e s l a v e s l a v e AHB multilayer s l a v e s l a v e s l a v e s l a v e s l a v e m a s t e r GPIO slave AHB TO APB BRIDGE CODE FICR UICR LTE-M modem ANT - LTE

ANT - GPS 1.8 V USIM USIM

APB ARM TrustZone CryptoCell 310 GPS P0

(P0.0 P0.31) AIN0 AIN7 AREF0 AREF1 RTS CTS TXD RXD SCL SDA SCL SDA SCK MOSI MISO CSN MISO MOSI SCK CLK DIN MCK LRCK SCL SDOUT SDIN master EasyDMA master master master EasyDMA master B P A EasyDMA master master SAADC EasyDMA UARTE [0..3]

TWIS [0..3]

EasyDMA TWIM [0..3]

SPIM [0..3]

SPIS [0..3]

PDM EasyDMA I2S EasyDMA master master EasyDMA master NVMC DPPI KMU SPU DMA GPIOTE RTC [0..1]

TIMER [0..2]

IPC PWM[0..3]

EasyDMA WDT POWER CLOCK Clock control REGULATORS OUT0-OUT3 High frequency clock sources High frequency clock sources Figure 1: nRF9160 module block diagram v1.2 7 nRF9160 module 3.2 Pin assignment The following figure illustrates the nRF9160 pinout. For more information, see Pin assignments in nRF9160 Product Specification. Figure 2: nRF9160 pinout, top (seen through module) 3.3 Pin description Pin descriptions are provided in the following table. The table can be found in Pin assignments in the nRF9160 Product Specification, excluding some information that is relevant for the nRF9160 hardware design. Pin no Pin name Description GND_Shield P0.05 P0.06 P0.07 GND_Shield Reserved GND_Shield VDD_GPIO GND_Shield DEC0 P0.08 P0.09 P0.10 P0.11 P0.12 VDD2 P0.13 1 2 3 4 5-9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 v1.2 Function Power GPIO GPIO GPIO Power Power Power Power Power GPIO GPIO Power GPIO GPIO GPIO Power Power GPIO Microshield GND, connect strongly to module GND Can be used to improve mechanical rigidity. Solder to main board but do not Microshield GND, connect strongly to module GND Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level connect electrically. Microshield GND, connect strongly to module GND GPIO power supply input and logic level for GPIOs Module internal power supply decoupling option. Microshield GND, connect strongly to module GND Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level RFFE power supply input. Tie to the same voltage level as VDD1. Digital I/O and analog input, VDD_GPIO level 8 GND_Shield Microshield GND, connect strongly to module GND GND_Shield Microshield GND, connect strongly to module GND Pin no Pin name Function Description nRF9160 module GND_Shield Microshield GND, connect strongly to module GND System reset SoC reset pin GPIO GPIO GPIO Power GPIO GPIO GPIO Power SWD SWD GPIO Power GPIO GPIO GPIO GPIO Power GPIO SIM Power SIM SIM SIM SIM Power Power Reserved Power GPIO GPIO GPIO Power RFFE ctrl RFFE ctrl RFFE ctrl Power RF Power Power RF Power Power RF Power Power P0.14 P0.15 P0.16 P0.17 P0.18 P0.19 GND_Shield nRESET SWDCLK SWDIO P0.20 GND_Shield P0.21 P0.22 P0.23 P0.24 GND_Shield P0.25 SIM_RST GND_Shield SIM_DET SIM_CLK GND_Shield SIM_IO SIM_1V8 GND_Shield Reserved GND_Shield MAGPIO2 MAGPIO1 MAGPIO0 GND_Shield VIO SCLK SDATA GND_Shield ANT GND_Shield GND_Shield AUX GND_Shield GND_Shield GPS GND_Shield GND_Shield Reserved 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Digital I/O and analog input, VDD_GPIO level Digital I/O and analog input, VDD_GPIO level Digital I/O and analog input, VDD_GPIO level Digital I/O and analog input, VDD_GPIO level Digital I/O and analog input, VDD_GPIO level Digital I/O and analog input, VDD_GPIO level Microshield GND, connect strongly to module GND Serial wire debug & programming clock input Serial wire debug & programming interface Digital I/O and analog input, VDD_GPIO level Microshield GND, connect strongly to module GND Digital I/O and trace buffer clock, VDD_GPIO level Digital I/O and trace buffer TRACEDATA[0], VDD_GPIO level Digital I/O and analog input TRACEDATA[1], VDD_GPIO level Digital I/O and analog input TRACEDATA[2], VDD_GPIO level Microshield GND, connect strongly to module GND Digital I/O and analog input TRACEDATA[3], VDD_GPIO level Microshield GND, connect strongly to module GND SIM reset SIM detect SIM clock SIM data Microshield GND, connect strongly to module GND 1.8V power supply output for SIM Microshield GND, connect strongly to module GND connect electrically. Microshield GND, connect strongly to module GND Digital I/O, controllable by APP and MDM, fixed 1.8V Digital I/O, controllable by APP and MDM, fixed 1.8V Digital I/O, controllable by APP and MDM, fixed 1.8V Microshield GND, connect strongly to module GND Digital I/O, MIPI RFFE VIO compatible, fixed 1.8V Digital I/O, MIPI RFFE CLK compatible, fixed 1.8V Digital I/O, MIPI RFFE DATA compatible, fixed 1.8V Microshield GND, connect strongly to module GND Single end 50 LTE antenna port Microshield GND, connect strongly to module GND Microshield GND, connect strongly to module GND Microshield GND, connect strongly to module GND Microshield GND, connect strongly to module GND Single end 50 GPS input port Microshield GND, connect strongly to module GND Microshield GND, connect strongly to module GND connect electrically. connect electrically. Can be used to improve mechanical rigidity. Solder to main board but do not Single end 50 ANT loop-back port, external matching network recommended. Reserved Can be used to improve mechanical rigidity. Solder to main board but do not Reserved Reserved Can be used to improve mechanical rigidity. Solder to main board but do not GND_Shield Power Microshield GND, connect strongly to module GND v1.2 9 nRF9160 module Pin no 73 Pin name Reserved Function Reserved Can be used to improve mechanical rigidity. Solder to main board but do not 74-82 GND_Shield Microshield GND, connect strongly to module GND GND_Shield Microshield GND, connect strongly to module GND Description connect electrically. Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Coexistence interface, VDD_GPIO level Coexistence interface, VDD_GPIO level Coexistence interface, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level Digital I/O, VDD_GPIO level GND_Shield Microshield GND, connect strongly to module GND GND_Shield Microshield GND, connect strongly to module GND GND_Shield Microshield GND, connect strongly to module GND 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 P0.26 P0.27 P0.28 P0.29 P0.30 P0.31 COEX2 COEX1 COEX0 P0.00 P0.01 P0.02 P0.03 P0.04 ENABLE VDD1 VSS Power GPIO GPIO Power GPIO GPIO GPIO GPIO Power GPIO GPIO GPIO Power GPIO GPIO GPIO Power GPIO GPIO Power Power Power Module enable signal. Connect to VDD1 to enable module. SoC power supply input. Must be at same voltage level as VDD2 power supply input for RFFE. Module main GND, connect strongly to application board GND plane. Main thermal exit path from module to application board. 104-127 Reserved Can be used as improvement of mechanical rigidity. Solder to main board but do not connect electrically. Table 1: Pin assignments v1.2 10 4 Antennas The nRF9160 module supports multiple cellular frequency bands as listed in Bands of operation on page 5. As the electrical size of the antenna sets fundamental limits for antenna bandwidth, it is recommended to select an antenna supporting only the operational bands of the final device and optimize the antenna performance at frequencies in question. The smaller the electrical size, the narrower the reachable bandwidth and the lower the radiation efficiency. If wide bandwidth and small physical size is required from the final device, antenna tuners may be advantageous: antenna input matching can be optimized for the frequency of operation at a time. It is also possible to design the antenna to have tunable resonant frequency. Antenna suppliers and design houses provide solutions for size limited antennas. The nRF9160 module provides control for external antenna tuners. For more information, see nWP033 - nRF9160 Antenna and RF Interface Guidelines. Note: The nRF9160 module has been certified only with the antenna solution presented in Reference circuitry on page 17. However, it is possible to use other antenna types and models with nRF9160. Adequate testing and regulator certifications are always required from the final device regardless of antenna selection. 4.1 Antenna interface The nRF9160 module has a single-ended 50 antenna port where the antenna solution shall be connected. nRF9160 is evaluated with a 50 antenna load. To ensure good overall RF performance, antenna impedance and the characteristic impedance of the transmission line (i.e. cable) connecting the antenna and antenna port must be 50 . Impedance mismatch may lead to performance degradation. Maximum antenna VSWR 2:1 is recommended but VSWR 3:1 can still be accepted in the final device. Respective minimum return loss values are 9.5 dB and 6.0 dB. The length of the transmission line from the antenna to the nRF9160 antenna port should be kept as short as possible to minimize losses, as this loss is directly deteriorating the modules transmitted and received power. Additionally, low-loss matching circuit between the antenna and the nRF9160 antenna port is recommended to minimize loss caused by antenna and PCB routing mismatch. Reserving space from device manufacturer's application board for matching components (e.g. -circuit) is recommended. This is because, for example, catalog antennas are typically tuned on reference board and differences to device mechanics may impact antenna impedance. It is also possible that device mechanics change during the development phase of the final device, and these modifications may impact antenna performance. Matching components can be used to compensate the impact of mechanics change to antenna impedance, and thus it may not be mandatory to modify the antenna itself. The nRF9160 module has an internal ESD circuit in the antenna port, but additional ESD components at device manufacturer's application board may be used. The design of the ESD circuit shall be such that the impact on RF frequencies is negligible. Note: ESD filtering may be necessary for some active components that can be used at antenna path. Such components can be, for example, RF switches and antenna tuners. For further ESD requirements, see the RF switch and antenna tuner datasheets. v1.2 11 Antennas 4.2 Antenna port test connector To run conductive RF tests, a test connector nearby the nRF9160 antenna port in the RF transmission line is needed. The 50 impedance requirement applies also to the test connector, and VSWR and insertion loss should be minimal. Regardless of whether the nR9160 antenna port is connected to an actual antenna or test equipment, the load at the nRF9160 antenna should remain as close to 50 as possible. For a test connector, microwave coaxial switch connectors (for example, Murata MM8130-2600) are a good choice for this purpose. For conductive tests, a test cable is plugged in which connects the nRF9160 antenna port to the test equipment instead of the antenna. When the test cable is plugged off, the nRF9160 antenna port is connected to the antenna for real use case or radiated testing. The layout for the connector must be carefully designed to fulfil the 50 requirement. For detailed guidance on this, see the coaxial switch connectors datasheets. v1.2 12 5 Test modes The nRF9160 module is fully calibrated and does not require any calibration in the device manufacturers production. Instead, the manufacturer test should focus on the successful assembly of the module and the correct co-functionality of the peripheral components connected to nRF9160. Device manufacturer testing should focus on items such as the following:

Module is not damaged during handling and assembly All module pins are successfully soldered (connectivity and no shorts) Module functionality in final product Communication to module MCU All interfaces between the module and the peripheral circuits RF performance and antenna connection The primary method to implement these tests is by programming FW on the application MCU that will control the chip during the test. The application MCU programming interface is defined in nRF9160 Product Specification. However, it is also possible to control the device through nRF9160 serial interface by AT commands. It requires flashing appropriate firmware in the nRF9160 exposing AT command API into physical interface. By this method nRF9160 can also be controlled not only in device production phase but also in device manufacturer development phase. For more information, see nWP034 - nRF9160 Hardware Verification Guidelines. Note: For more information about RF performance related test modes and other supported test capabilities, see nRF91 AT Commands Reference Guide. 5.1 BB functional test The nRF9160 programming interface can be used to test the digital interfaces. All GPIO and application MCU peripherals are described in nRF9160 Product Specification and LTE modem related IO interfaces

(MAGPIO, MIPI RFFE, SIM) are accessed through AT commands described in nRF91 AT Commands Reference Guide. 5.2 RF functional test In this document, the focus is on RF test modes and methods. Device testing can be done either as radiated measurement or as conducted test if the device has a RF test connector. In both cases the test can be done with basic RF measurement equipment using the AT test commands that set up the module to test modes bypassing the LTE signaling protocol. The nRF9160 transceiver supports three main test modes for RF performance verification: RX, TX, and GPS SNR test modes. A high level description of each test mode is given in the following sections. Note: To avoid module damage during testing the nRF9160 antenna port must be terminated to either suitable antenna or 50 termination. v1.2 13 Test modes Note: Since the AT test commands enable to emit RF power bypassing the LTE signaling protocol the emission can cause interference. This feature is thus only intended for use in controlled test environments and shall not be used during normal module operation following the instructions in Nordic Semiconductor documentation. 5.2.1 RX test RX ON command enables the RF receiver with the given parameters. It also measures antenna power with a time domain power meter and returns the measurement result. RX OFF command disables RF receiver. RX ON has a total of four input parameters:

Parameter 3GPP band number Range 1 to 66 Description nRF9160 supported bands Frequency 100 kHz raster 6000 to 22000 Corresponds to 600 to 2200 MHz System mode 0 to 1 NB1 = 0, M1 = 1 Signal level at antenna

-127 to -25 Signal generator level at antenna [dBm]

Table 2: RX ON input parameters The response to the test is RX signal power at antenna port measured by DUT given in q8 format. q8 format results can be converted into dBm value by dividing the result by 2^8 (= 256). Figure 3: Example command Test setup Figure 4: RX test setup example v1.2 14 Test modes 5.2.2 TX test TX ON command enables RF transmitter with the given parameters. It also measures TX power with an internal measurement receiver in time domain and returns the measurement result. TX OFF command disables RF transmitter. TX ON has a total of seven input parameters:

Parameter 3GPP band number Range 1 to 66 Description nRF9160 supported bands Frequency 100 kHz raster 6000 to 22000 Corresponds to 600 to 2200 MHz System mode 0 to 1 NB1 = 0, M1 = 1 Signal level at antenna

-50 to +23 TX signal level at antenna port [dBm]

Modulation CW to 16QAM TX signal properties - options available depending RB or SC count 1 to 12 RB or SC start position 0 to 11 on selected system mode TX signal properties - options available depending on selected system mode TX signal properties - options available depending on selected system mode Table 3: TX ON input parameters The response to the test is TX signal power at antenna port measured internally by DUT. The same TX signal power can be measured with external measurement equipment connected to DUT antenna port. Figure 5: Example command Test setup Figure 6: TX test setup example v1.2 15 Test modes 5.2.3 GPS SNR test GPS SNR ON command executes a GPS SNR test. GPS L1 frequency is 1575.42 MHz and this test expects the CW in signal generator to be 1575.750 MHz, i.e. 330 kHz offset from the center frequency. The measurement duration is 1 ms. The test is disabled automatically after 1 ms and dedicated GPS SNR OFF command is not needed. GPS SNR ON has a one input parameter:

Parameter Range Description Signal level at antenna

-127 to -25 Signal generator level at antenna [dBm]

Table 4: GPS SNR ON input parameters The response to the test is GPS SNR value measured by DUT in q4 format. q4 format results can be converted into dB value by dividing the result by 2^4 (= 16). Test setup Figure 7: GPS SNR test setup example 5.3 RF signaling test If full functionality against LTE network is tested in device manufacturing, it is possible to set up a signaling mode test either by live network test or by using a telecommunication tester. The use of test equipment with LTE signaling capability is strongly recommended. If live network is used a network with good coverage and known signal quality is needed. Typically, it is difficult to guarantee live network quality over time and caution is needed in the interpretation of results. Live network signaling mode test is done by setting up a data connection and checking RX signal quality through AT command. v1.2 16 6 Reference circuitry To ensure good RF performance when designing PCBs, it is highly recommended to use the PCB layouts and component values provided by Nordic Semiconductor. Documentation for the different package reference circuits, including Altium Designer files, PCB layout files, and PCB production files can be downloaded from www.nordicsemi.com. Note: In this context reference circuitry illustrates the vehicle (i.e. nRF9160 Development Kit) applicable for the nRF9160 module granted the FCC certifications listed in Supported FCC rules on page 5. The given reference circuity is a valid generic example of an nRF9160 based final device but does not limit the use of nRF9160 in any way. 6.1 Schematics The following figure illustrates the reference schematics of nRF9160 Development Kit. Figure 8: nRF9160 reference schematics 6.2 PCB layout The PCB layout shown in Figure 9: nRF9160 reference layout, metal layer 1 (top) on page 18 and Figure 10: nRF9160 reference layout, metal layer 2 on page 18 are part of the nRF9160 Development Kit reference layout. The figures show the PCB design details of the area where the cellular antenna is located. v1.2 17 Reference circuitry Figure 9: nRF9160 reference layout, metal layer 1 (top) Figure 10: nRF9160 reference layout, metal layer 2 6.3 PCB specification The nRF9160 Development Kit PCB stack-up and layer materials are shown in the following figure:

v1.2 18 Reference circuitry Figure 11: nRF9160 reference PCB (Elprints 4-layer 4001 stack-up) 6.4 Antenna type The antenna used in nRF9160 Development Kit is Ethertronics P822601 shown in the following figure. The antenna is a universal broadband FR4 embedded LTE antenna generally suitable for various cellular applications. Ethertronics Universal Broadband Embedded LTE/LPWA antenna utilizes Isolated Magnetic Dipole (IMD) technology. For further details on the antenna, see the antenna supplier datasheet. v1.2 19 Reference circuitry Figure 12: nRF9160 Development Kit antenna v1.2 20 7 Regulatory information This section contains information on certified bands and FCC/ISED regulatory notices for nRF9160. 7.1 Certified bands The following table shows the FCC and ISED certified LTE-M1 bands for nRF9160. FCC certification ISED certification Band Band 2 Band 4 Band 5 Band 12 Band 13 Band 14 Band 17 Band 25 Band 26 Band 66 Band Band 2 Band 4 Band 5 Band 12 Band 13 Band 17 Band 25 Band 26 Band 66 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes No Yes Table 5: FCC and ISED certified LTE-M1 bands The following table shows the FCC and ISED certified LTE-NB1 bands for nRF9160. FCC certification ISED certification Table 6: FCC and ISED certified LTE-NB1 bands For more information about the certified bands and the status of the ongoing certifications, see nRF9160 certifications. v1.2 21 Regulatory information 7.2 FCC/ISED regulatory notices FCC/ISED regulatory notices cover modification and interference statements, wireless and FCC Class B digital device notices, permitted antennas and labeling requirements. Modification statement Nordic Semiconductor has not approved any changes or modifications to this device by the user. Any changes or modifications could void the user's authority to operate the equipment. Nordic Semiconductor n'approuve aucune modification apporte l'appareil par l'utilisateur, quelle qu'en soit la nature. Tout changement ou modification peuvent annuler le droit d'utilisation de l'appareil par l'utilisateur. Interference statement This device complies with Part 15 of the FCC Rules and Industry Canada's licence-exempt RSS standards. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Wireless notice This equipment complies with FCC and ISED radiation exposure limits set forth for an uncontrolled environment. The antenna should be installed and operated with minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Cet appareil est conforme aux limites d'exposition aux rayonnements de lISDE pour un environnement non contrl. L'antenne doit tre installe de faon garder une distance minimale de 20 centimtres entre la source de rayonnements et votre corps. L'metteur ne doit pas tre colocalis ni fonctionner conjointement avec autre antenne ou autre metteur. Permitted antenna This radio transmitter has been approved by FCC and ISED to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. v1.2 22 Band Band 2 Band 4 Band 5 Band 12 Band 13 Band 14 Band 17 Band 25 Band 26 Band 66 Bande Bande 2 Bande 4 Bande 5 Bande 12 Bande 13 Bande 14 Bande 17 Bande 25 Bande 26 Bande 66 Regulatory information Max gain 9.0 dBi 6.0 dBi 7.1 dBi 6.6 dBi 6.9 dBi 6.9 dBi 6.6 dBi 9.0 dBi 7.0 dBi 6.0 dBi 9.0 dBi 6.0 dBi 7.1 dBi 6.6 dBi 6.9 dBi 6.9 dBi 6.6 dBi 9.0 dBi 7.0 dBi 6.0 dBi Gain maximal Le prsent metteur radio a t approuv par ISDE pour fonctionner avec les types d'antenne numrs ci dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour l'exploitation de l'metteur. FCC Class B digital device notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. 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 equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected v1.2 23 Regulatory information Consult the dealer or an experienced radio/TV technician for help CAN ICES-3 (B)/NMB-3 (B) This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de classe B est conforme la norme canadienne ICES-003. Labeling requirements for the host device The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the FCC ID and IC of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows:

Contains FCC ID: 2ANPO00NRF9160 Contains IC: 24529-NRF9160 L'quipement hte doit tre correctement tiquet pour identifier les modules dans l'quipement. L'tiquette de certification du module doit tre clairement visible en tout temps lorsqu'il est install dans l'hte, l'quipement hte doit tre tiquet pour afficher le FCC ID et IC du module, prcd des mots "Contient le module metteur", ou le mot "Contient", ou un libell similaire exprimant la mme signification, comme suit:

Contient FCC ID: 2ANPO00NRF9160 Contient IC: 24529-NRF9160 v1.2 24 Legal notices By using this documentation you agree to our terms and conditions of use. Nordic Semiconductor may change these terms and conditions at any time without notice. Liability disclaimer Nordic Semiconductor ASA reserves the right to make changes without further notice to the product to improve reliability, function, or design. Nordic Semiconductor ASA does not assume any liability arising out of the application or use of any product or circuits described herein. Nordic Semiconductor ASA does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. If there are any discrepancies, ambiguities or conflicts in Nordic Semiconductors documentation, the Product Specification prevails. Nordic Semiconductor ASA reserves the right to make corrections, enhancements, and other changes to this document without notice. Life support applications Nordic Semiconductor products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Nordic Semiconductor ASA customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nordic Semiconductor ASA for any damages resulting from such improper use or sale. RoHS and REACH statement Complete hazardous substance reports, material composition reports and latest version of Nordic's REACH statement can be found on our website www.nordicsemi.com. All trademarks, service marks, trade names, product names, and logos appearing in this documentation are the property of their respective owners. Trademarks Copyright notice 2020 Nordic Semiconductor ASA. All rights are reserved. Reproduction in whole or in part is prohibited without the prior written permission of the copyright holder. v1.2 25

ADDENDUM TO OEM GUIDANCE [INTENDED TO BE ATTACHED TO USER GUIDE AFTER EXISTING HOST DEVICE LABELING SECTION.]

The host device shall be properly labeled to identify the modules within the host device. The certication label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labeled to display the FCC ID of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows: Contains FCC ID: 2A3579160 1

Headquarters Otto Nielsens v 12, 7052 Trondheim, Norway Postal address: P.O. Box 2336, 7004 Trondheim Tel.: +47 72 89 89 00 www.nordicsemi.com NO 966 011 726 MVA Date: 2022-01-05 Federal Communications Commission 7345 Oakland Mills Road Columbia MD 21046 We, the undersigned, hereby authorize FireHUD Inc. 1701 Oakbrook Dr., Ste F Norcross, GA 30093 to market our IOT Module under their own identification:

FireHUD Model: 002 FireHUD FCC ID: 2A3579160 T:he original identification for the Nordic Semiconductor product is FCC ID: 2ANPO00NRF9160 The original grant date is: 6/6/2019. Ketil Aas-Johansen Application Engineer Page 1 of 1

7/8/22 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Re: Applicant: FireHUD Inc. d.b.a SlateSafety FCC ID: 2A3579160 Part 2.1043(b)(2) Class II Permissive Change FireHUD Inc. d.b.a SlateSafety (SlateSafety) requests a Class II Permissive change under Part 2.1043(b)(2). FCC ID of Module: 2A3579160 No hardware or radio software was altered in the nRF9160. The purpose of the Class II Permissive Change is:

1. The nRF9160 is now co-located with another radio transmitter. 2. The nRF9160 resides inside of a host device which is typically body-worn Please let us know if you might require anything further to assist with your review of this Class II Permissive Change. Tyler Sisk CTO FireHUD Inc. d.b.a SlateSafety 1

6/21/22 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 Re: Request for condentiality FCC ID:

To whom it may concern, We hereby respectfully request that under the provision of 47 CFR 0.459 and 0.457(d) the documents listed below and attached with this application for certication be provided with condential status. Operational Description.pdf Any exhibit / information for which we have requested condentiality, but which may not be accorded such treatment by the FCC, should be returned to us. The documents listed above contain trade secrets that are treated as condential by us. Substantial competitive harm to us could result should they be made available to the public. Sincerely, Tyler Sisk CTO 1