FCC ID: 2AJYU-8EC0001 Wireless MODULE

SIM7022-EVB User Guide NB Module SIMCom Wireless Solutions Limited. SIMCom Headquarters Building, Building 3, No. 289 Linhong Road Changning District, Shanghai P.R.China Tel: 86-21-31575100 support@simcom.com www.simcom.com SIM7022-EVB User Guide V1.00 Document Title:

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GENERAL NOTES SIM7022-EVB User Guide V1.00 2021-07-21 Released SIMCOM OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS, TO SUPPORT APPLICATION AND ENGINEERING EFFORTS THAT USE THE PRODUCTS DESIGNED BY SIMCOM. THE INFORMATION PROVIDED IS BASED UPON REQUIREMENTS SPECIFICALLY PROVIDED TO SIMCOM BY THE CUSTOMERS. SIMCOM HAS NOT UNDERTAKEN ANY INDEPENDENT SEARCH FOR ADDITIONAL RELEVANT INFORMATION, INCLUDING ANY INFORMATION THAT MAY BE IN THE CUSTOMERS POSSESSION. FURTHERMORE, SYSTEM VALIDATION OF THIS PRODUCT DESIGNED BY SIMCOM WITHIN A LARGER ELECTRONIC SYSTEM REMAINS THE RESPONSIBILITY OF THE CUSTOMER OR THE CUSTOMERS SYSTEM INTEGRATOR. ALL SPECIFICATIONS SUPPLIED HEREIN ARE SUBJECT TO CHANGE. COPYRIGHT THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY OF SIMCOM WIRELESS SOLUTIONS LIMITED COPYING, TO OTHERS AND USING THIS DOCUMENT, ARE FORBIDDEN WITHOUT EXPRESS AUTHORITY BY SIMCOM. OFFENDERS ARE LIABLE TO THE PAYMENT OF INDEMNIFICATIONS. ALL RIGHTS RESERVED BY SIMCOM IN THE PROPRIETARY TECHNICAL INFORMATION INCLUDING BUT NOT LIMITED TO REGISTRATION GRANTING OF A PATENT , A UTILITY MODEL OR DESIGN. ALL SPECIFICATION SUPPLIED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE AT ANY TIME. SIMCom Wireless Solutions Limited SIMCom Headquarters Building, Building 3, No. 289 Linhong Road, Changning District, Shanghai P.R. China Tel: +86 21 31575100 Email: simcom@simcom.com For more information, please visit:

https://www.simcom.com/download/list-863-en.html For technical support, or to report documentation errors, please visit:

https://www.simcom.com/ask/ or email to: support@simcom.com Copyright 2021 SIMCom Wireless Solutions Limited All Rights Reserved. www.simcom.com 2 / 33 SIM7022-EVB User Guide V1.00 Version History Date Version Description of change Author 2021.07.21 1.00 Released Yanping Yang www.simcom.com 3 / 33 SIM7022-EVB User Guide V1.00 Contents Introduction....................................................................................................................................................7 1.1 Features Overview........................................................................................................................................... 7 1.2 SIM7022 EVB Top and Bottom View............................................................................................................ 8 1.3 SIM7022 Evaluation Kit.................................................................................................................................10 2.1.1 2.1.2 Interface Introduction................................................................................................................................. 12 2.1 Power Supply..................................................................................................................................................12 Power Supply................................................................................................................................ 12 Separate Power Supply............................................................................................................... 13 2.2 (U)SIM card Interface.................................................................................................................................... 15 2.3 UART Interface............................................................................................................................................... 17 2.4 Status Indicator Light.....................................................................................................................................18 2.5 Switches and Buttons....................................................................................................................................19 2.6 Test Points....................................................................................................................................................... 20 3.1.1 Operation Method...................................................................................................................................... 25 3.1 Module Boot.................................................................................................................................................... 25 Module Power-on Operation.......................................................................................................25 3.2 Driver Installation............................................................................................................................................25 USB-to-UART Driver Installation................................................................................................26 3.3 Firmware Upgrade Process..........................................................................................................................26 3.4 AT Command Communication..................................................................................................................... 29 UART Serial Communication......................................................................................................30 3.4.1 3.2.1 Appendix...................................................................................................................................................... 31 4.1 Reference Documents...................................................................................................................................31 4.2 Terminology and Explanation.......................................................................................................................32 4.3 Safety Warning............................................................................................................................................... 33 1 2 3 4 www.simcom.com 4 / 33 SIM7022-EVB User Guide V1.00 Table Index Table 1Main features..................................................................................................................................................7 Table 2: Label information description......................................................................................................................... 9 Table 3: EVB Kit.............................................................................................................................................................11 Table 4: EVB Kit.............................................................................................................................................................11 Table 5: Interface introduction..................................................................................................................................... 12 Table 6: (U)SIM card interface pin definition (J102)................................................................................................ 17 Table 7: micro USB interface pin definition (J103).................................................................................................. 18 Table 8: Status indicator light description..................................................................................................................19 Table 9: switches and buttons..................................................................................................................................... 20 Table 10: Test point description of J101 on EVB..................................................................................................... 22 Table 11: Pin description of location J105 on EVB.................................................................................................. 23 Table 12: The pin description of J106 on EVB......................................................................................................... 24 Table 13: The pin description of J107 on EVB......................................................................................................... 24 Table 14: USB to UART ports......................................................................................................................................26 Table 15: UART frame format......................................................................................................................................30 Table 16: UART baud rate support.............................................................................................................................30 Table 17: UART common baud rate operations.......................................................................................................30 Table 18: Reference documents.................................................................................................................................31 Table 19: Terminology and explanation..................................................................................................................... 32 Table 20: safety warning.............................................................................................................................................. 33 www.simcom.com 5 / 33 SIM7022-EVB User Guide V1.00 Figure Index Feature 1 : SIM7022 EVB top view.............................................................................................................................. 8 Feature 2 SIM7022 EVB bottom view..................................................................................................................... 9 Feature 3 : SIM7022 Evaluation kit............................................................................................................................ 10 Feature 4 : EVBPower supply block diagram........................................................................................................... 13 Feature 5 : EVB power interface.................................................................................................................................13 Feature 6 : Module power supply reference design................................................................................................ 14 Feature 7 : Module power supply separately (VBAT GND)....................................................................................15 Feature8 : (U)SIM card interface reference design................................................................................................. 15 Featue 9 : (U)SIM card interface pin definition (J102)............................................................................................ 16 Feature 10 : USB to UART reference design........................................................................................................... 18 Feature 11 : micro USB interface pin definition (J103)........................................................................................... 18 Feature 12 : LED status indicator light (LED101LED102LED103)............................................................... 19 Feature 13 : switches and buttons..............................................................................................................................20 Feature 14 : Test point location................................................................................................................................... 21 Feature 15 : The pin definition of position J101 on EVB.........................................................................................22 Feature 16 : Pin definition of location J105 on EVB................................................................................................ 22 Feature 17 : The pin definition of J106 on EVB........................................................................................................23 Feature 18 : The pin definition of J107 on EVB........................................................................................................24 Feature 19 : USB to UART ports.................................................................................................................................26 Feature 20 : Power switch and download switch status......................................................................................... 27 Feature 21 : Download interface.................................................................................................................................27 Feature 22 : Erased the software................................................................................................................................28 Feature 23 : the software download interface.......................................................................................................... 28 Feature 24 : software download interface................................................................................................................. 29 Feature 25 : software download complete................................................................................................................ 29 www.simcom.com 6 / 33 SIM7022-EVB User Guide V1.00 1 Introduction The purpose of this article is to introduce the interface and usage of the development kit. Based on the SIMCom development kit, developers will quickly become familiar with and verify the software functions of the module. 1.1 Features Overview The main features of SIM7022 EVB are shown in the table below. Table 1Main features Features Power supply

(U)SIM card interface UART interface Signal indication Switches Buttons Description USB_VBUS5V power supply

(U)SIM cardDual voltage 1.8V/3.0V Two USB-to-UART interfaces, Respectively for the main serial port and system log port Three function indicator LED lights Two switches for power supply and software download Two buttons for wake-up and reset functions respectively www.simcom.com 7 / 33 SIM7022-EVB User Guide V1.00 1.2 SIM7022 EVB Top and Bottom View Feature 1: SIM7022 EVB top view www.simcom.com 8 / 33 SIM7022-EVB User Guide V1.00 Feature 2SIM7022 EVB bottom view Table 2: Label information description Label information A B C D E F G H J L1 L2 L3 Description SIM7022 Module Main serial port, used for AT commands and firmware upgrade DBG serial port, used for software LOG capture Power supply switch Firmware upgrade switch WAKEUP button RESET button Main antenna connector SIM card interface Network status light Power Indicator light Power-on indicator light T1,T2,T3,T4,T5 Test point www.simcom.com 9 / 33 SIM7022-EVB User Guide V1.00 Note 1. The SIM card of the SIM7022 EVB is shown as the position "J" in the rendering. The module does not support the hot-swappable function. Please insert the SIM card before turning on the module, otherwise the SIM card will not be recognized successfully. 1.3 SIM7022 Evaluation Kit Evaluation kit includes EVB board and other accessories. The SIM7022 kit list is as follows, please ensure that all kits are complete. 1) SIM7022-EVB board 2) MICRO USB data cable 3) GSM\WCDMA\LTE antenna Feature 3: SIM7022 Evaluation kit www.simcom.com 10 / 33 SIM7022-EVB User Guide V1.00 Table 3: EVB Kit EVB Kit SIM7022 EVB Description EVB board GSM\WCDMA \LTE antenna GSM\WCDMA \LTE antenna MICRO USB data cable MICRO USB data cable quantity 1 1 1 To ensure that the module can be used normally, it is recommended to use the correct kit model. The part numbers of SIM7022 EVB kit are shown in the table below. Table 4: EVB Kit EVB Kit 8EC000-SIM7022-EVBKIT Part No S2-109DE www.simcom.com 11 / 33 SIM7022-EVB User Guide V1.00 2 Interface Introduction The interface of SIM7022 EVB is shown in the table below. Table 5: Interface introduction Reference number Description Function

(U)SIM UART LEDS Switches Buttons J102 J103 J104 LED101 LED102 LED103 SW101 SW1 SW102 SW103 Test points J101 J105 J106 J107

(U)SIM card interface J103 is used for AT command communication, data transmission and firmware upgrade J104 is used for software debugging LED101Network status indicator light LED102Power status indicator light LED103Power-on status indicator light SW101Power supply switch SW1Firmware upgrade switch SW102RESET button SW103WAKEUP button J101 J105Power test point J106 J107Module signal test point More detailed introductions about the above functions are shown in the next section. 2.1 Power Supply 2.1.1Power Supply SIM7022 EVB is powered by micro USB, USB plug-in connection device J103, J104 can achieve 5V power supply effect. The power supply block diagram of SIM7022 EVB is shown in the figure below. www.simcom.com 12 / 33 SIM7022-EVB User Guide V1.00 Feature 4: EVBPower supply block diagram Feature 5: EVB power interface 2.1.2Separate Power Supply The module power supply reference design is shown in the figure below. www.simcom.com 13 / 33 SIM7022-EVB User Guide V1.00 Feature 6: Module power supply reference design The test points of VBAT and GND of the module are shown in the figure below. If the module needs to be powered separately, the resistance of R112 should be removed first, and then the VBAT and GND test points should be externally supplied with power. www.simcom.com 14 / 33 Feature 7: Module power supply separately (VBAT GND) SIM7022-EVB User Guide V1.00 Note 1. The power supply range of the module is 2.2~4.2V, and the recommended power supply voltage is 3.3V. When the power supply voltage is lower than 3V, the radio frequency can work and the performance of a single index may not meet the 3GPP standard. 2.2 (U)SIM card Interface SIM7022 does not support hot-swappable function. Please make sure to insert the (U)SIM card correctly before powering on, otherwise the card cannot be recognized. The reference circuit of the (U)SIM card interface is shown in the figure below. Feature8: (U)SIM card interface reference design The pin definition of the (U)SIM card holder is shown in the figure below. www.simcom.com 15 / 33 SIM7022-EVB User Guide V1.00 Featue 9: (U)SIM card interface pin definition (J102) www.simcom.com 16 / 33 SIM7022-EVB User Guide V1.00 Table 6: (U)SIM card interface pin definition (J102) Pin number Pin name I/O Describe 1 2 3 4 5 6 7 VCC RST CLK DET GND VPP I/O O O O I

(U)SIM power supply

(U)SIM reset signal

(U)SIM clock signal

(U)SIM detect signal GND Float I/O

(U)SIM duplex data line 2.3 UART Interface SIM7022 EVB provides two UART interfaces (J103, J104) by USB to UART. J103 is used as the main serial port for AT commands, data transmission and firmware upgrade, and J104 is used as DEBUG debugging serial port for software DEBUG debugging. The reference circuit of USB to UART interface is shown in the figure below. www.simcom.com 17 / 33 Feature 10: USB to UART reference design The pin definition of the Micro USB interface is shown in the figure below. SIM7022-EVB User Guide V1.00 Feature 11: micro USB interface pin definition (J103) Table 7: micro USB interface pin definition (J103) Pin number Pin name 1 2 3 4 5 VBUS USB_DM USB_DP

GND I/O O I\O I\O

Description USB power supply USB differential data negative (USB-to-UART) USB differential data positive (USB-to-UART) Float Ground 2.4 Status Indicator Light There are three status indicator lights LED101, LED102, and LED103 for function indication on SIM7022 EVB. The status indicators LED101, LED102, and LED103 are as shown in the figure below. www.simcom.com 18 / 33 SIM7022-EVB User Guide V1.00 Feature 12: LED status indicator light (LED101LED102LED103) Table 8: Status indicator light description LEDs number LEDs colour Description LED101 LED102 LED103 Blue Red Blue Module network status indicator light VBAT power supply indicator light Module power-on status indicator light 2.5 Switches and Buttons There are two switches (SW101, SW1) and two buttons (SW102, SW103) on SIM7022 EVB. www.simcom.com 19 / 33

SIM7022-EVB User Guide V1.00 Feature 13: switches and buttons Table 9: switches and buttons Number Name Description POWER_KEY EVB power switch RESET WAKEUP Module reset button Module wake-up button DOWNLOAD Firmware upgrade switch SW101 SW102 SW103 SW1 Note 1. When the serial port baud rate is less than or equal to 9600bps, there is no need to use the WAKEUP button of EVB to wake up, and the module can be directly awakened by sending AT commands through UART1. When the baud rate is greater than 9600bps, you need to use the WAKEUP button to pull down WAKEUP to wake up the module. For details, please refer to the document [1]. 2.6 Test Points There are four sets of test points J101, J105, J106, J107 on SIM7022 EVB. The details of the test points are www.simcom.com 20 / 33 as follows. SIM7022-EVB User Guide V1.00 Feature 14: Test point location The pin definition of position J101 is shown in the figure below. www.simcom.com 21 / 33 SIM7022-EVB User Guide V1.00 Feature 15: The pin definition of position J101 on EVB Table 10: Test point description of J101 on EVB Position J101 J101_PIN1 EXT_VBAT EVB LDO power supply output voltage test point J101_PIN2 VBAT Module power input voltage test point The pin definition of position J105 is shown in the figure below. Feature 16: Pin definition of location J105 on EVB www.simcom.com 22 / 33 Table 11: Pin description of location J105 on EVB Position Test point J105_PIN1 Signal description VEXT J105 J105_PIN2 SWD_CLK J105_PIN3 GND J105_PIN4 SWD_DIO J105_PIN5 J105_PIN6 J105_PIN7 J105_PIN8 J105_PIN9 J105_PIN10 J105_PIN11 ADC GND RI TXD NET RXD GND J105_PIN12 UART2_RX J105_PIN13 MISO J105_PIN14 UART2_TX J105_PIN15 J105_PIN16 J105_PIN17 MOSI GND SCLK J105_PIN18 DBG_TX J105_PIN19 CS J105_PIN20 DBG_RX The pin definition of J106 is shown in the figure below. SIM7022-EVB User Guide V1.00 Pin number Pin name 24 25

26 9

20 18 16 17

28 3 29 4

5 39 6 38 VDD_EXT IIC_SDA

IIC_SCL ADC0

RI UART1_TX NETLIGHT UART1_RX

UART2_RX SPI_MISO UART2_TX SPI_MOSI

SPI_SCLK DBG_TXD SPI_CS DBG_RXD Feature 17: The pin definition of J106 on EVB www.simcom.com 23 / 33 SIM7022-EVB User Guide V1.00 Table 12: The pin description of J106 on EVB Position Test point Signal name Description J106 J106_PIN1 J106_PIN2 5V GND EVB 5V power supply test point GND The pin definition of J107 is shown in the figure below. Feature 18: The pin definition of J107 on EVB Table 13: The pin description of J107 on EVB Position Test point Signal name Description J107_PIN1 J107 J107_PIN2 RESET GND Module reset signal GND J107_PIN3 WAKEUP Module wake-up signal Note 1. For the related functions of each pin of the module, please refer to document [1]. www.simcom.com 24 / 33 SIM7022-EVB User Guide V1.00 3 Operation Method 3.1 Module Boot 3.1.1Module Power-on Operation The module boot method is as follows 1. Insert the Micro USB into the USB connector J103 (or J104) 2. Turn the switch SW101 up to the on state, and LED101, LED102, and LED103 will light up. 3. If the module is successfully registered to the network, the flashing frequency of LED101 will slow down, otherwise LED101 will keep flashing fast. When the module enters PSM mode or the module is in shutdown state, LED101 will go out. The module shutdown method is as follows:

1. Turn the switch SW101 down to the off state, the module will automatically shut down, and LED101, LED102, and LED103 will go out. 2. The module can be powered off by the AT command. When the module is in the power-on state, input the AT command "AT+CPOF" and the module will automatically power off. More details. Please refer to SIM7022 series _AT command. 3.2 Driver Installation www.simcom.com 25 / 33 3.2.1 USB-to-UART Driver Installation SIM7022-EVB User Guide V1.00 The following connection can get the USB to UART driver. https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers After the driver is successfully installed, the following virtual serial port will appear,COM95/COM93/COM94 Feature 19: USB to UART ports Table 14: USB to UART ports Reference Number Interface type J103 J104 ECI SCI

Port number Serial port Function description COM93 Enhance UART Used for AT communication, data transmission and firmware upgrade COM94 Standard UART

COM95 USB TO UART Bridge Used for software DEBUG 3.3 Firmware Upgrade Process Before updating the firmware, please contact the SIMCom technical support team and the supplier to obtain the correct download tool and firmware upgrade file. The firmware update method of the module is shown below. 1. Insert the Micro USB into the USB connector J103 (AT/DL UART), turn up SW101, SW1 to ON state. www.simcom.com 26 / 33 SIM7022-EVB User Guide V1.00 Feature 20: Power switch and download switch status 2. Open the EiGENCOMM_MultiDownload tool and follow the steps.

(1) Check the EraseALL option.

(2) Select bootloader/system/calibration in turn and load the corresponding bin file.

(3) Select Enhanced port.

(4) Click "DL" and wait for the software to be erased. Feature 21: Download interface 3. Erased the software. www.simcom.com 27 / 33 SIM7022-EVB User Guide V1.00 Feature 22: Erased the software 4. After completing the software erasing, enter the software download interface. Feature 23: the software download interface 5. After entering the software download interface, press the SW102 button and wait for the software to download. www.simcom.com 28 / 33

SIM7022-EVB User Guide V1.00 Feature 24: software download interface 6. After the update is successful, turn SW1 down to OFF state, then turn SW101 back to ON state, and then power on. Feature 25: software download complete 3.4 AT Command Communication AT commands currently have incomplete functions that need to be continuously updated after subsequent development. The content of this chapter is still being updated based on the actual debugging situation. www.simcom.com 29 / 33 SIM7022-EVB User Guide V1.00 3.4.1UART Serial Communication The serial data frame format and serial baud rate of the SIM7022 module are as follows. 1. Set the serial data frame format SIM7022 supports multiple serial data frame formats. The default data frame format is 8 data bits, 1 stop bit, and no parity bit. Table 15: UART frame format UART frame format Data bit Stop bit Parity bit 2. Set the serial port baud rate Supported formats 8bit,7bit 1bit Odd, Even, None SIM7022 supports a variety of common baud rates. The factory default baud rate of the standard module is 115200, and it supports automatic baud rate adaptation. You can use AT+IPR to set the baud rate. Table 16: UART baud rate support UART baud rate support Serial communication baud rate Supported rate 4800,9600,19200,38400,57600,115200,230400

,460800,921600 230400,460800,921600 Serial port adaptive baud rate 4800,9600,19200,38400,57600,115200 Common baud rate instructions for serial ports Table 17: UART common baud rate operations UART common baud rate operations Query the current baud rate Related instructions AT+IPR?

Set the boot default baud rate AT+IPR=

Set temporary baud rate to match automatically AT+IPR=0 www.simcom.com 30 / 33 SIM7022-EVB User Guide V1.00 4 Appendix 4.1 Reference Documents Table 18: Reference documents Numb er

[1]

File name Describe SIM7022 Hardware Design SIM7022 Hardware Design Manual

[2]

SIM7022 Series_AT Command Manual SIM7022 AT Command Manual www.simcom.com 31 / 33 SIM7022-EVB User Guide V1.00 4.2 Terminology and Explanation Table 19: Terminology and explanation Terminology Explanation LED LTE NC PSM RF

(U)SIM UART Light Emitting Diode Long Term Evolution Not connect Power saving mode Radio Frequency

(Universal) Subscriber Identity Module Universal Asynchronous Receiver Transmitter www.simcom.com 32 / 33 SIM7022-EVB User Guide V1.00 4.3 Safety Warning Table 20: safety warning Marks Requirements When in a hospital or other health care facility, observe the restrictions about the use of mobiles. Switch the cellular terminal or mobile off, medical equipment may be sensitive and not operate normally due to RF energy interference. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is switched off. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Forgetting to think much of these instructions may impact the flight safety, or offend local legal action, or both. Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where blasting operations are in progress. Operation of any electrical equipment in potentially explosive atmospheres can constitute a safety hazard. Your cellular terminal or mobile receives and transmits radio frequency energy while switched on. RF interference can occur if it is used close to TV sets, radios, computers or other electric equipment. Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a vehicle, unless it is securely mounted in a holder for hands free operation. Before making a call with a hand-held terminal or mobile, park the vehicle. GSM cellular terminals or mobiles operate over radio frequency signals and cellular networks and cannot be guaranteed to connect in all conditions, especially with a mobile fee or an invalid SIM card. While you are in this condition and need emergent help, please remember to use emergency calls. In order to make or receive calls, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Some networks do not allow for emergency call if certain network services or phone features are in use (e.g. lock functions, fixed dialing etc.). You may have to deactivate those features before you can make an emergency call. Also, some networks require that a valid SIM card be properly inserted in the cellular terminal or mobile. www.simcom.com 33 / 33 OEM/Integrators Installation Manual Important Notice to OEM integrators 1. This module is limited to OEM installation ONLY. 2. This module is limited to installation in mobile or fixed applications, according to Part 2.1091(b). 3. The separate approval is required for all other operating configurations, including portable configurations with respect to Part 2.1093 and different antenna configurations 4. For FCC Part 15.31 (h) and (k): The host manufacturer is responsible for additional testing to verify compliance as a composite system. When testing the host device for compliance with Part 15 Subpart B, the host manufacturer is required to show compliance with Part 15 Subpart B while the transmitter module(s) are installed and operating. The modules should be transmitting and the evaluation should confirm that the module's intentional emissions are compliant (i.e. fundamental and out of band emissions). The host manufacturer must verify that there are no additional unintentional emissions other than what is permitted in Part 15 Subpart B or emissions are complaint with the transmitter(s) rule(s). The Grantee will provide guidance to the host manufacturer for Part 15 B requirements if needed. Important Note notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify to Simcom that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the USI, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application End Product Labeling When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved. If not, a second label must be placed on the outside of the final device that contains the following text: Contains FCC ID: 2AJYU-8EC0001 The FCC ID can be used only when all FCC compliance requirements are met. Antenna

(1) The antenna must be installed such that 20 cm is maintained between the antenna and users,

(2) The transmitter module may not be co-located with any other transmitter or antenna. In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, maximum antenna gain (including cable loss) must not exceed Test Mode Antenna Gain (dBi) Test Mode Antenna Gain (dBi) LTE B2 LTE B4 LTE B5 LTE B12 LTE B13 7.30 4.30 4.30 4.30 4.30 LTE B14 LTE B17 LTE B25 LTE B26 LTE B66 4.30 4.30 7.30 4.30 4.30 Manual Information to the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual Federal Communication Commission Interference Statement 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 interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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 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.

- Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. List of applicable FCC rules This module has been tested and found to comply with part 22, part 24, part 27, part 90 requirements for Modular Approval. The modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC transmitter rules) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-

radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. This device is intended only for OEM integrators under the following conditions: (For module device use) 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator &

your body.

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SIMCom Wireless Solutions Limited No.633 Jinzhong Road, Shanghai, China Confidentiality Letter Date: 2021.10.16 Federal Communications Commission Authorization and Evaluation Division FCC ID: 2AJYU-8EC0001 Confidentiality Request Pursuant to FCC 47 CRF 0.457(d) and 0.459, we request that a part of the subject FCC application listed below be held permanently confidential and permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Operational Description Part List Tune up procedure Block Diagram Schematics Further, the Applicant has spent substantial effort in developing this product, some aspects of which are deemed to be trade secret and proprietary. Having the subject information easily available to our competitors in this market would negate the advantage we have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Sincerely yours, yongsheng Li Jongsherg le d SIMCom Wireless Solutions Limite

SIMCom Wireless Solutions Limited No.633 Jinzhong Road, Shanghai, China Request for Modular/Limited Modular Approval Date: November 8, 2021 Subject: Manufacturer's Declaration for - Modular Approval 1 - Split Modular Approval

- Limited Modular Approval O - Limited Split Modular Approval Confidentiality Request for: 2AJYU-8EC0001 8 Basic Requirements FCC Part 15.212(a)(1) For Items Marked NO(*), the Limited Module Description Must be Filled Out on the Following Pages Modular Approval Requirement Requirement Met 4. The modular transmitter must have its own RF shielding. This is intended to ensure that the module does not have to rely upon the shielding provided by the device into which it Is installed in order for all modular transmitter emissions to comply with FCC limits. It is also intended to prevent coupling between the RF circuitry of the module and any wires or circuits -YES | O- No(*) in the device into which the module is installed. Such coupling may result in non-compliant operation. The physical crystal and tuning capacitors may be located external to the shielded radio elements. 15.212(a)(1)(i) Details: <example The module contains a metal shield which covers all RF components and circuitry. The Shield is focated on the top of the board next to antenna connector>

2. The modular transmitter must have buffered modulation/data inputs (if such inputs are . provided) to ensure that the module will comply with FCC requirements under conditions of - YES - NO(*) excessive data rates or over-modulation. 15.212(a)(1){ii) Details: <example Data to the modulation circuit is buffered as described in the operational description provided with the application>

3. The modular transmitter must have its own power supply regulation on the module. This is intended to ensure that the module will comply with FCC requirements regardless of the design of the power supplying circuitry in the device into which the module is installed. 15.212(a){1 (iii)

&- YES - NO(*) Details: <example The module contains its own power supply regulation. Please refer to schematic filed with this application>

4. The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b), 15.204(c), 15.212(a), and 2.929(b). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph 15.212(b). 15.212(a)(1){iv)

-YES | C1- Not) Details: <example The module connects to its antenna using an UFL connector which is considered a non-

standard connector. A list of antennas tested and approved with this device may be found in users manual provided with the application>

5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in Section 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be - YES - NO(*) marketed with the module (see Section 15.27(a)). The length of these lines shall be tength typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified or commercially available (see Section 15.31{i)). 15.212(a}(1)(v) Details: <example The module was tested stand-alone as shown in test setup photographs filed with this application>

Modular Approval Requirement Requirement Met 6. The modular transmitter must be labeled with its own FCC ID number, or use an electron display (see KDB Publication 784748). If using a permanently affixed label with its own FCC ID number, if the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID:

2AJYU-8EC0001 or Contains FCC ID: 2AJYU-8EC0001 Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment - YES - NO(*) authorization. if the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC certified transmitter module(s). Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 15.212(a)(1)(vi) . ~ : : ~ 7 Details: <example - There is a label on the module as shown in the labeling exhibit filed with this application. Host specific labeling instructions are shown in the installation manual .filed with this application.>

7. The modular transmitter must comply with all specific rule or operating requirements applicable to the transmitter, including ail the conditions provided in the integration instructions by the grantee. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 15.212(a)(1)(vii)

- YES - NO(*) Details: <example - The module complies with FCC Part 15C requirements. instructions to the OEM installer are provided in the installation manual filed with this application.>

8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. 15.212(a)(1)(viii)

- YES - NO(*) Details: < The module meets RF exposure in mobile configuration.>

070920-02b Limited Module Description - When Applicable

* If amodule does NOT meet one or more of the above 8 requirements, the applicant may request Limited Modular Approval

(LMA). This Limited Modular Approval (LMA) is applied with the understanding that the applicant will demonstrate and will retain control over the final installation of the device, such that compliance of the end product is always assured. The operating condition(s) for the LMA; the moduie is only approved for use when installed in devices produced by grantee. A description regarding how control of the end product, into which the module will be installed, will be maintained by the applicant/manufacturer, such that full compliance of the end product is always ensured should be provided here. Details: <example - N/A>

Software Considerations - KDB 594280 / KDB 442812 (One of the following 2 items must be applied) Requirement Requirement Met 1. For non-Software Defined Radio transmitter modules where software is used to ensure compliance of the device, technical description must be provided D - Provided in - NA about how such conirol is implemented to ensure prevention of third-party Separate Cover Letter modification; see KDB Publication 594280. Details: <example The firmware of the device can not be modified or adjusted by the end user as described in a separate cover letter filed with this application. >

2. For Software Defined Radio (SDR) devices, transmitter module applications - Provided in must provide a software security description; see KDB Publication 442812. Separate Cover Letter -NIA Details: <example N/A>

Split Modular Requirements Requirement Provided in Manual 1. For split modular transmitters, specific descriptions for secure communications between front-end and control sections, including authentication and HO - Provided in - N/A restrictions on third-party modifications; also, instructions to third-party Separate Cover Letter integrators on how control is maintained. Details: <example N/A >

OEM Integration Manual Guidance KDB 996369 D03 Section 2 Clear and Specific Instructions Describing the Conditions, Limitations, and Procedures for third-parties to use and/or integrate the module into a host device. Requirement

[1 -No, If No, and LMA applies, the applicant can optionally choose to not make the following detailed info public. However there still needs to be basic integration instructions for a users manual Is this module intended for -YES and the information below must still be included in the sale to third parties? operational description. If the applicant wishes to keep this info confidential, this will require a separate statement cover letter explaining the module is not for sale to third parties and that integration instructions are internal confidential documents. 070920-02b Items required to be in the manual See KDB 996369 D03, Section 2 include a cover letter as cited above. As of May 1, 2019, the FCC requires ALL the following information to be in the installation manual. Modular transmitter applicants should include information in their instructions for all these items indicating clearly when they are not applicable. For example information on trace antenna design could indicate Not Applicable. Also if a module is limited to only a grantees own products and not intended for sale to third parties, the user instructions may not need to be detailed and the following items can be placed in the operational description, but this should 1. List of applicable FCC rules. KDB 996369 D03, Section 2.2 a. Only list rules related to the transmitter. 2. Summarize the specific operational use conditions. KDB 996369 D03, Section 2.3 a. Conditions such as limits on antennas, cable loss, reduction of power for point to point systems, professional installation info 3. Limited Module Procedures. KDB 996369 D03, Section 2.4 a. Describe alternative means that the grantee uses to verify the host meets the necessary limiting conditions b. When RF exposure evaluation is necessary, state how control will be maintained such that compliance is ensured, such as Class II for new hosts, etc. 4. Trace antenna designs. KDB 996369 D03, Section 2.5 a. Layout of trace design, parts list, antenna, connectors, isolation requirements, tests for design verification, and production test procedures for ensuring compliance. If confidential, the method used to keep confidential must be identified and information provided in the operational description. 5. RF exposure considerations. KDB 996369 D03, Section 2.6 a. Clearly and explicitly state conditions that allow host manufacturers to use the module. Two types of instructions are necessary: first to the host manufacturer to define conditions (mobile, portable xx cm from body) and second additional text needed to be provided to the end user in the host product manuals.

&] - All tems shown to the left are provided in the Modular Integration Guide (or UM)for Full Modular Approval (MA) or LMA.

(1 - An LMA applies and is approved _.ONLY for use by the... grantee in their own produets, and not 6. Antennas. KDB 996369 D03, Section 2.7 a. List of antennas included in the application and all applicable professional installer instructions when applicable. The antenna list shall also identify the antenna types (monopole, PIFA, dipole, etc note that omni-directional is not considered a type) 7. Label and compliance information. KDB 996369 DO03, Section 2.8 a. Advice to host integrators that they need to provide a physical or e-label stating Contains FCC ID: * with their finished product 8. Information on test modes and additional testing requirements. KDB 996369 D03, Section 2.9 a. Test modes that should be taken into consideration by host integrators including clarifications necessary for stand-alone and simultaneous configurations. b. Provide information on how to configure test modes for evaluation 9. Additional testing, Part 15 Subpart B disclaimer. KDB 996369 D03, Section 2.10 intended for sale to 34 parties as provided in a Separate cover letter. Therefore the information shown to the left is found in the theory of operation. Sincerely,

. yongsheng Li SIMCom Wireless Solutions Limited 070920-02b

SIMCom Wireless Solutions Limited No.633 Jinzhong Road, Shanghai, China Declaration of authorization Date: 2021.10.16 Product Name: Wireless MODULE Model No.: SIM7022 FCC ID: 2AJYU-8EC0001 We, the undersigned, hereby authorize MRT Technology (Suzhou) Co., Ltd to act on our behalf, to act on our behalf in all manners relating to FCC approval of our products: report submittal, related correspondence, the signing of all documenis relating to these matters, and any other lawful activity necessary to obtain such certification. Any act carried out by MRT Technology (Suzhou) Co., Ltd within the scope of this authorization shall have the same effects as our own. Name Representative of agent: Marlin Chen Agent Company name: MRT Technology (Suzhou) Co., Ltd Address: D8 Building, Youxin Industrial Park, No.2 Tianedang Rd., Wuzhong Economic Development Zone, City: Suzhou Country: China If you have any questions regarding the authorization, please dont hesitate to contact us. Sincerely yours, yongsheng Li Porgheny Us SIMCom Wireless Solutions Limited