Cavli Wireless C42GM Hardware Manual

Cat m1/nb1/nb2 module integrated esim
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Cavli C42GM Hardware Manual
Cavli C42GM
CAT M1/NB1/NB2 Module
Integrated eSIM
Hardware Manual
External Release Version 1.9
www.cavliwireless.com
www.cavliwireless.com
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Summary of Contents for Cavli Wireless C42GM

  • Page 1 Cavli C42GM Hardware Manual Cavli C42GM CAT M1/NB1/NB2 Module Integrated eSIM Hardware Manual External Release Version 1.9 www.cavliwireless.com www.cavliwireless.com...
  • Page 2 Cavli C42GM Hardware Manual Connect to our website and feel free to contact our technical support team for any assistance. Cavli Inc., 99 South Almaden Blvd., Suite 600, San Jose, California, 95113 Phone: 1-650-535-1150 Web: www.cavliwireless.com IoT Connectivity Platform: www.cavlihubble.io Support Centre https://www.cavliwireless.com/support-center.html...
  • Page 3: Table Of Contents

    2.3 Device development kit ......................14 3 Interface application description ....................15 3.1 Chapter overview......................... 15 3.2 Module interface ......................... 16 3.2.1 C42GM Pin layout .................................. 16 3.2.2 C42GM Pin interface ................................17 3.3 Power interface ........................... 21 3.3.1 Input power supply design ............................22 3.3.2 Power reference circuit ..............................
  • Page 4 Cavli C42GM Hardware Manual 3.6.3 RI and DTR interface ................................ 32 3.7 USIM interface ..........................33 3.7.1 USIM card reference circuit ............................33 3.8 General purpose GPIO interface..................... 35 3.9 Indication interface ........................35 3.9.1 Network status ..................................35 3.9.2 Module status indication ............................... 37 3.10 PCM and I2C interface ......................
  • Page 5 5.8 Reliability index..........................63 6 Structural and mechanical properties ..................65 6.1 Chapter overview ........................65 6.2 Module structural image......................65 6.3 C42GM module mechanical size ....................66 7 Ordering information ........................69 8 Packaging and production ......................71 8.1 Chapter overview ........................71 8.2 Module packaging and storage....................
  • Page 6 Cavli C42GM Hardware Manual Table of Figures Figure 1 Functional block diagram of the C42GM module ..................13 Figure 2 C42GM module interface definition......................16 Figure 3 Burst current supply voltage drop for GSM TDMA network ..............22 Figure 4 VBAT power supply ............................23 Figure 5 LDO linear power reference circuit ......................
  • Page 7 Cavli C42GM Hardware Manual List of Tables Table 1 Characteristic Table ............................9 Table 2 Variant Information ............................11 Table 3 Pin Assignment ..............................17 Table 4 I/O Parameter Definition ..........................21 Table 5 Power Pin Definition ............................21 Table 6 Switch Pin Definition ............................25 Table 7 Reset Foot Definition ............................
  • Page 8 Cavli C42GM Hardware Manual VERSION HISTORY Version Description Date Initial 17-09-2021 1. Updated functional block diagram 2. Audio interface changed to PCM 3. Updated the corrected GNSS Active Antenna reference circuit 25-10-2021 4. Updated the corrected USB connection design diagram 5.
  • Page 9: Introduction

    Cavli C42GM Hardware Manual Introduction This document is the Hardware Manual of Cavli Wireless solution product C42GM Smart Module, which describes the hardware composition and functional features of the module, the definition and usage of the application interface, and the electrical performance and mechanical properties of the module. This document and the other application documents combined will enable users to develop end devices with Cavli Modules.
  • Page 10 NOTE • The C42GM module recommends working at - 35°C to +75°C environment. It is suggested that the application terminal adopt temperature control measures under harsh conditions. At the same time, some RF indexes may exceed the limit. At the same time, it is suggested to be stored under a certain temperature •...
  • Page 11: Variant Information

    Cavli C42GM Hardware Manual 1.2 Variant information Table 2 Variant Information C42GM Variant Features C42GM-S C42GM-SH C42GM-HG C42GM-HGAI LTE-M NB-IoT SigFox GNSS CAN-FD OpenSDK Optional Optional Optional Optional Internal SIM Optional Optional Optional Optional www.cavliwireless.com...
  • Page 12: Module Overview

    Module overview 2.1 Module introduction C42GM module is an LTE M1/NB1/NB2 based wireless communication module for the Internet of things. It is a highly integrated System-in-a-Chip (SoC) designed to support LTE CAT-M1 (eMTC) and CAT-NB1/NB2 (NB- IoT). It includes RAM memory and integrates low power and high-performance Cortex-R4 processor and radio transceivers as well as an impressive array of peripherals for connectivity.
  • Page 13: Module Function

    ✓ Baseband processing unit ✓ Power management unit ✓ Memory unit ✓ RF transceiver unit ✓ RF front-end unit ✓ GPS RF receiving unit C42GM module function block diagram is as follows: Figure 1 Functional block diagram of the C42GM module www.cavliwireless.com...
  • Page 14: Device Development Kit

    Cavli C42GM Hardware Manual 2.3 Device development kit In order to assist customers, develop their applications with ease, we provide a Device Development Kit (DDK) with RS232, USB and UART ports, Audio and stereo jacks and other peripherals to test and control the modules.
  • Page 15: Interface Application Description

    Cavli C42GM Hardware Manual Interface application description 3.1 Chapter overview This chapter mainly describes the interface definition and application of this module. It contains the following sections: • Module interface • Power interface • Switching machine reset mode • USB interface •...
  • Page 16: Module Interface

    Cavli C42GM Hardware Manual 3.2 Module interface 3.2.1 C42GM Pin layout C42GM pins are assigned as follows: Figure 2 C42GM module interface definition NOTE • All RESERVED and unused pins are left unconnected www.cavliwireless.com...
  • Page 17: C42Gm Pin Interface

    Cavli C42GM Hardware Manual 3.2.2 C42GM Pin interface The C42GM module has the LCC interface. The module interface definition is shown in the following table Table 3 Pin Assignment Pin no. Pin name C42GM-S C42GM-SH C42GM-HG C42GM-HGAI PSM_IND ADC1 PCM_CLK...
  • Page 18 Cavli C42GM Hardware Manual Pin no. Pin name C42GM-S C42GM-SH C42GM-HG C42GM-HGAI ADC0 GPIO_5 GPIO_6 UART1_TXD UART1_RXD VDD_EXT UART0_DTR VBAT_BB VBAT_BB UART0_RXD UART0_TXD UART0_CTS UART0_RTS UART0_DCD UART0_RI I2C_SCL I2C_SDA USIM_PRESENCE USIM_VDD USIM_RST USIM_DATA USIM_CLK USIM_GND ANT_GNSS SDH_CLK VBAT_RF www.cavliwireless.com...
  • Page 19 Cavli C42GM Hardware Manual Pin no. Pin name C42GM-S C42GM-SH C42GM-HG C42GM-HGAI VBAT_RF SDH_CMD SDH_D3 ANT_MAIN RESERVED GPIO_7 GPIO_8 PWM_OUT USB_BOOT SDH_D2 SDH_D1 SDH_D0 www.cavliwireless.com...
  • Page 20 Cavli C42GM Hardware Manual Pin no. Pin name C42GM-S C42GM-SH C42GM-HG C42GM-HGAI CAN_RX CAN_TX CAN_CTRL1 CAN_CTRL0 JTAG_TDI JTAG_TMS JTAG_TD0 JTAG_TCK SPI_MISO SPI_MOSI SPI_SCLK SPI_SS GNSS_VRTC GNSS_1PPS FUNCTION ACTIVE FUNCTION INACTIVE RESERVED www.cavliwireless.com...
  • Page 21: Power Interface

    Digital input Digital output Leaky open circuit 3.3 Power interface The C42GM module power interface consists of three parts: ✓ VBAT_BB is the module working power supply ✓ VBAT_RF is the module RF power supply ✓ VDD_EXT is 1.8V output power Table 5 Power Pin Definition Pin no.
  • Page 22: Input Power Supply Design

    74,79-82,89-91,100-102 3.3.1 Input power supply design The C42GM module can be powered by a single power supply mode. ✓ The module has 4 channels of power supply, two VBAT_BB and two VBAT_RF pins. ✓ The module power supply range is between 3.1V - 4.2V ✓...
  • Page 23: Power Reference Circuit

    Cavli C42GM Hardware Manual Figure 4 VBAT power supply 3.3.2 Power reference circuit The actual design of the power circuit can use a switching DC power supply or a linear LDO power supply to design the VBAT power supply, and then the PMOS transistor is used to control the power supply input so that the power supply can be completely cut off.
  • Page 24: Figure 6 Dc Switching Power Supply Reference Circuit

    Cavli C42GM Hardware Manual Figure 6 DC switching power supply reference circuit Figure 7 PMOS tube control power switch reference circuit www.cavliwireless.com...
  • Page 25: Switching Machine Reset Mode

    Cavli C42GM Hardware Manual NOTE • In order to prevent the module from being damaged by surge and overvoltage, a 5.1V/500mW Zener diode is suggested to be connected in parallel at the VBAT pin of the module. • It is suggested that 3 ceramic capacitors (33pF, 10pF, 100nF) be added to the VBAT line and placed near the VBAT pin.
  • Page 26: Turn Off

    Cavli C42GM Hardware Manual The PWRKEY can also be controlled with a button directly. In that case button accessories should be kept with a TVS tube for ESD protection. Reference circuit for the same is given below: Figure 9 Reference circuit for Button control NOTE •...
  • Page 27: Usb Interface

    RESET input low -0.3 level voltage C42GM module can be reset with the AT Command AT+CFUN=1,1 for full functionality reset. Detailed instructions can be viewed in the C42GM AT instruction set manual. 3.5 USB interface The USB interface supports the following features: Software debugging, download/upgrade ✓...
  • Page 28: Figure 11 Usb Connection Design Circuit Diagram

    Cavli C42GM Hardware Manual Table 9 Interface Pin Definition Pin no. Signal name Description USB_VBUS USB insertion detection, high level effective USB_DP USB differential signal + USB_DM USB differential signal - Module as USB slave device, supporting USB dormancy and wakeup mechanism. The USB interface...
  • Page 29: Uart Interface

    Cavli C42GM Hardware Manual 3.6 UART interface C42GM module provides a full function serial port and two UART (2 lines) ports. The UART interface is defined as follows: Table 10 UART Serial Port Signal Definition Pin no. Name Description UART0_RI...
  • Page 30: Figure 12 Full-Featured Serial Port Design

    Cavli C42GM Hardware Manual When users want to use the full-featured serial port, they can refer to the following connection methods Figure 12 Full-featured serial port design If you need to use a 2-wire serial port, you can refer to the following serial port design: Figure 13 UART serial port design ✓...
  • Page 31: Debug Serial Port

    Cavli C42GM Hardware Manual For the chip connection method, refer to the following circuit: Figure 14 Level conversion chip circuit 3.6.2 Debug serial port The debug serial port supports 115200bps baud rate. It is used for Linux control and log printing. It can reserve test points for module debugging.
  • Page 32: Ri And Dtr Interface

    Figure 15 RI pin signal waveform DTR: The DTR pin can be used as the sleep wake-up pin of the C42GM module. When the module enters sleep, the DTR pin can be pulled low to wake up the module. 1. Pull the DTR pin high first 2.
  • Page 33: Usim Interface

    USIM card data USIM_CLK USIM card clock USIM_RST USIM card reset 3.7.1 USIM card reference circuit The C42GM module does not come with a USIM card slot. Users need to design a USIM card slot on their own interface board. www.cavliwireless.com...
  • Page 34: Figure 16 Usim Design Circuit Diagram

    Cavli C42GM Hardware Manual The USIM card interface reference circuit is as follows: Figure 16 USIM design circuit diagram NOTE • The recommended USIM interface cable is ONSEMI's SMF15C device for ESD protection. The peripheral circuit components should be placed close to the card holder, and the SIM card holder is close to the module layout.
  • Page 35: General Purpose Gpio Interface

    The C42GM module provides an open-drain GPIO signal to indicate the status of the RF communication. 3.9.1 Network status C42GM provides one network status indication pin: NETLIGHT. The pin is used to drive a network status indication LED. The following tables describe the pin definition and logic level changes of NETLIGHT in different network activity status.
  • Page 36: Figure 17 Net Light Circuit Diagram

    Cavli C42GM Hardware Manual Table 15 Network Indicator Pin Definition Pin no. Signal name Description NETLIGHT Network status indication Table 16 Network Indication Status Status LED display status No service Module Searching for Network Flashing The module registers 4G network or module...
  • Page 37: Module Status Indication

    40 mA. 3.9.2 Module status indication ✓ The C42GM module provides a pin as a working status indicator for the module. ✓ This pin can be used to connect to a GPIO or LED with pull-up.
  • Page 38: Pcm And I2C Interface

    Figure 18 STATUS Pin Reference Circuit 3.10 PCM and I2C interface ✓ C42GM one Pulse Code Modulation (PCM) and one I2C interface. ✓ The module provides PCM interface pins for external codec PCM decoder chip. ✓ The module provides a set of hardware bidirectional serial buses with an I2C interface ✓...
  • Page 39: Figure 19 Pcm To Analog Voice Map

    Cavli C42GM Hardware Manual Table 19 PCM Pin Definition Pin no. Signal name Description PCM_IN PCM data input PCM_OUT PCM data output PCM_SYNC PCM Frame sync clock pulse PCM_CLK PCM bit clock pulse I2C_SCL I2C bus clock output I2C_SDA Figure 19 PCM to analog voice map...
  • Page 40: Adc Interface

    Figure 20 I2C interface reference circuit diagram 3.11 ADC interface The C42GM provides two analog-to-digital converter interfaces to read the voltage value. ✓ The ADC interface input voltage cannot exceed VBAT ✓ It is recommended that the ADC pin be input with a voltage divider circuit Pin no.
  • Page 41: Can Interface

    Cavli C42GM Hardware Manual 3.12 CAN interface Controller Area Network is an electronic communication bus which defines how communication happens, how wiring is configured and how messages are constructed, among other things. Collectively, this system is referred to as a CAN bus. It is a broadcast type of bus, all nodes can “hear” all transmissions. There is no way to send a message to just a specific node;...
  • Page 42: Spi Interface

    Cavli C42GM Hardware Manual The following circuit shows a reference diagram for CAN interface: Figure 21 CAN reference circuit diagram 3.13 SPI interface Table 22 SPI Interface Pin Definition Signal name Description Pin no. SPI_SS Slave select SPI_SCLK Clock SPI_MOSI...
  • Page 43: Sigfox Interface

    Cavli C42GM Hardware Manual 3.14 Sigfox interface ✓ Sigfox Network has a star topology: each of the access stations communicates with the Sigfox Cloud via a point-to-point link. ✓ It is implemented between the connected devices and the network. ✓ AT command is used to switch between Sigfox and LTE CAT M1 or NB.
  • Page 44: Pwm_Out

    Cavli C42GM Hardware Manual 3.16 PWM_OUT C42GM provides one Pulse width modulation signal output. The user can program the signal frequency using the SDK. Table 25 PWM_out Pin Definition Pin no. Signal name Description Pulse Width PWM_OUT Modulation signal 3.17 GPS C42GM provides Global Positioning System (GPS) whose pin description is given below.
  • Page 45: Antenna Interface

    Cavli C42GM Hardware Manual Antenna interface 4.1 Chapter overview The C42GM module RF General Specifications contain the following sections: • RF Interface • GNSS reception performance • Working frequency • RF trace reference • RF connector size 4.2 RF interface...
  • Page 46: Main Antenna Interface

    Cavli C42GM Hardware Manual 4.2.1 Main antenna interface In order to facilitate the antenna debugging, one need to add π-type matching circuit on the motherboard and take 50-ohm impedance line. The π-type matching components should be placed as close to the antenna as possible.
  • Page 47 Cavli C42GM Hardware Manual B6 FDD <2.5:1 <-94 〉-4dbi 〉40% B8 FDD <2.5:1 <-94 〉-4dbi 〉40% B9 FDD <2.5:1 <-94 〉-4dbi 〉40% B10 FDD <2.5:1 <-94 〉-4dbi 〉40% B12 FDD <2.5:1 <-94 〉-4dbi 〉40% B13 FDD <2.5:1 <-94 〉-4dbi 〉40% B14 FDD <2.5:1...
  • Page 48: Gnss Interface

    〉40% 4.2.2 GNSS interface To use GNSS, you need to open the GPS with AT command AT+CGPS=1 (for details, please refer to C42GM AT command set manual) ✓ In order to facilitate the debugging of the antenna, it is necessary to add a π-type matching circuit to the main board, and to take a 50-ohm impedance line.
  • Page 49: Gnss Reception Performance

    Cavli C42GM Hardware Manual NOTE An external LDO can be selected to supply power according to the active antenna • requirement. If the module is designed with a passive antenna, then the VDD circuit is not needed. • The following table gives GNSS antenna requirements:...
  • Page 50: Rf Trace Reference

    Cavli C42GM Hardware Manual ✓ Reacquisition ≤ 1 s Sensitivity: ✓ Cold Start: -147 dBm ✓ Tracking: -160 dBm ✓ Hot Start: -155 dBm ✓ Reacquisition: -158 dBm 4.4 RF trace reference ✓ The impedance of the RF signal line is determined by ✓...
  • Page 51: Rf Connector Size

    Cavli C42GM Hardware Manual Figure 25 The complete structure of the multilayer PCB strip line Figure 26 Reference ground is the third layer PCB coplanar transmission line structure 4.5 RF connector size ✓ If the RF connector is used, the antenna connector must use a coaxial connector with a 50ohm characteristic impedance.
  • Page 52: Figure 27 Rf Connector Size Chart

    Cavli C42GM Hardware Manual Figure 27 RF connector size chart The RF connector plug for this connector is the U.FL-LP series from HRS. Figure 28 Antenna connector matching plug diagram Table 31 Main Parameters of the RF Connector Rated conditions...
  • Page 53: Working Frequency

    Cavli C42GM Hardware Manual Figure 29 Matching coaxial RF line size For more details, please visit http://www.hirose.com 4.6 Working Frequency Table 32 RF Frequency Table Frequency band Uplink frequency Downstream frequency Mode LTE B1 1920 MHz–1980 MHz 2110 MHz–2170 MHz LTE B2 1850 MHz–1910 MHz...
  • Page 54 Cavli C42GM Hardware Manual LTE B13 777 MHz–787 MHz 746 MHz–756 MHz LTE B14 788 MHz - 798 MHz 788 MHz - 798 MHz LTE B15 1900 MHz - 1920 MHz 2600 MHz - 2620 MHz LTE B16 2010 MHz - 2025 MHz...
  • Page 55: Interface Electrical Characteristics

    • Working storage temperature • Module IO level • Power supply • Power consumption characteristics • Electrostatic property • Reliability index 5.2 Working storage temperature Table 33 C42GM Module Working Storage Temperature Parameter Minimum value Maximum value Normal operating temperature -30°C 85°C...
  • Page 56: Module Io Level

    High level output VDD_EXT-0.45V VDD_EXT voltage Low level output 0.45V voltage 5.4 Power supply The C42GM module input power requirements are as follows: Table 35 C42GM Module Operating Voltage Parameter Minimum value Typical value Maximum value Input voltage 3.1V 3.6V 4.2V...
  • Page 57: Interface Power Requirements

    Cavli C42GM Hardware Manual 5.5 Interface power requirements 5.5.1 UART Table 36 UART Serial Power Definition Voltage Level (V) Name Parameter Typical 1.35 UART0_RI 0.45 1.35 UART0_DCD 0.45 1.35 UART0_CTS 0.45 UART0_RTS -0.3 UART0_DTR -0.3 1.35 UART0_TXD 0.45 UART0_RXD -0.3 1.35...
  • Page 58: Usim

    Cavli C42GM Hardware Manual 5.5.2 USIM Table 37 SIM Card Power Definition Level value (V) Remarks Signal name Parameter Typical V3.0 2.75 3.05 USIM_VDD=3. USIM_VDD V1.8 1.75 1.95 USIM_VDD=1. 0.65*VDD 3.05 USIM_VDD:3.0 -0.3 0.25*VDD USIM_DATA /1.8V VDD-0.45 3.05 0.45 VDD-0.45 3.05...
  • Page 59: Pcm And I2C

    Cavli C42GM Hardware Manual 5.5.4 PCM and I2C Table 39 PCM Power Definition Level value (V) Signal name Parameter Typical PCM_IN -0.3 1.35 PCM_OUT 0.45 PCM_SYNC -0.3 PCM_CLK -0.3 Table 40 I2C Power Definition Level value (V) Signal name Parameter Typical 1.35...
  • Page 60: Power Consumption Characteristics

    Cavli C42GM Hardware Manual 5.6 Power consumption characteristics Table 41 Power Consumption of C42GM Module Current consumption Mode Type Unit Power Saving mode @LTE CAT M1 1.65 DRX=1.28s @ Paging = 24ms @LTE CAT NB1 1.56 DRX=1.28s @ Paging = 24ms...
  • Page 61 Cavli C42GM Hardware Manual Band 26 @ TBD Band 28A @ 23.52 dBm Band 28A @ 23.52 dBm Band 66 @ 22.13 dBm Band 1 @ 22.10 dBm Band 2 @ 21.40 dBm Band 3 @ 21.07 dBm Band 4 @ 20.72 dBm Band 5 @ 20.49 dBm...
  • Page 62: Electrostatic Property

    AT+CFUN=0 Antenna, DPO off 5.7 Electrostatic property There is no overvoltage protection inside the C42GM module. When the module is used, the ESD needs to be protected to ensure product quality. EMC design recommendations: ✓ The USB port needs to add TVS on VDD, D+, D- for protection, and the TVS parasitic capacitance on D+/D- is <...
  • Page 63: Reliability Index

    Cavli C42GM Hardware Manual Analog voice ±4 ±8 interface VBAT power supply ±4 ±8 5.8 Reliability index Table 43 C42GM Reliability Test Test items Test Conditions Guideline Test Results Temperature: –40 Visual inspection: to be tested Working mode: Function check: to be tested...
  • Page 64 Cavli C42GM Hardware Manual High temperature: Low temperature: – Temperature change time: < 30s Visual inspection: to be tested Working mode: no Temperature shock JESD22-A106-B Function check: to be tested packaging, no RF indicator check: to be tested Power on, do not...
  • Page 65: Structural And Mechanical Properties

    Cavli C42GM Hardware Manual Structural and mechanical properties 6.1 Chapter overview • Module structural image • Module mechanical size 6.2 Module structural image Figure 30 Module Structural design www.cavliwireless.com...
  • Page 66: C42Gm Module Mechanical Size

    Cavli C42GM Hardware Manual 6.3 C42GM module mechanical size The figure below shows the bottom view size of the module: Figure 31 Front view and side view of the module (unit: mm) www.cavliwireless.com...
  • Page 67: Figure 32 Bottom View Of The Module (Unit: Mm)

    Cavli C42GM Hardware Manual Figure 32 Bottom view of the module (unit: mm) www.cavliwireless.com...
  • Page 68: Figure 33 Recommended Footprint (Top View) (Unit: Mm)

    Cavli C42GM Hardware Manual Module recommended footprint: Figure 33 Recommended Footprint (Top View) (unit: mm) www.cavliwireless.com...
  • Page 69: Ordering Information

    Cavli C42GM Hardware Manual Ordering information Figure 34 Ordering Information Table 44 Ordering Information Part Number Package Type Tape width Tolerance C42GM-M16S0N Tape & Reel 44mm 0.2 mm C42GM-M16S0H Tape & Reel 44mm 0.2 mm C42GM-M16GNN Tape & Reel 44mm 0.2 mm...
  • Page 70 Cavli C42GM Hardware Manual C42GM-M32S0N Tape & Reel 44mm 0.2 mm C42GM-M32S0H Tape & Reel 44mm 0.2 mm C42GM-M32GNN Tape & Reel 44mm 0.2 mm C42GM-M32GNH Tape & Reel 44mm 0.2 mm C42GM-N16S0N Tape & Reel 44mm 0.2 mm C42GM-N16S0H Tape &...
  • Page 71: Packaging And Production

    Module packaging and storage • Production welding 8.2 Module packaging and storage The C42GM module is packaged in a tape reel with 500 pcs per reel, shipped as a tape reel sealed bag. Figure 35 C42GM Tape Measurements (in mm) www.cavliwireless.com...
  • Page 72: Figure 36 Reel Dimensions Of C42Gm (In Mm)

    Cavli C42GM Hardware Manual Figure 36 Reel Dimensions of C42GM (in mm) The storage of the C42GM module is subject to the following conditions: ✓ The module has a moisture sensitivity rating of 3. ✓ When the ambient temperature is greater than 40 degrees Celsius and the air humidity is less than 90%, the module can be stored in a vacuum sealed bag for 12 months.
  • Page 73: Production Welding

    Cavli C42GM Hardware Manual 8.3 Production welding The C42GM module is packaged in an anti-static tray. The SMT wire body needs to be equipped with a Tray module. It is recommended to use a reflow oven above 7 temperature zones.
  • Page 74 Cavli C42GM Hardware Manual Table 45 Reflow Process Parameter Table Warm zone Time Key parameter Preheating zone Heating rate: 1℃/ s ~ 3℃ / s (4℃~ 165℃) Temperature zone (t1~t2): (160℃~210℃) 70s~120s (t3~t4): Recirculation zone Peak temperature: 235℃~ 245 ℃...
  • Page 75: Appendix

    Cavli C42GM Hardware Manual Appendix 9.1 Chapter overview • Abbreviations • Safety and precautions 9.2 Abbreviations Table 46 Abbreviations Abbreviations Full name 3GPP Third Generation Partnership Project Access Point Adaptive Multi-rate Bit Error Rate China Compulsory Certification CDMA Code Division Multiple Access...
  • Page 76 Cavli C42GM Hardware Manual Electrostatic Discharge Federal Communications Commission GPRS General Packet Radio Service Global System for Mobile Communication HSDPA High-Speed Downlink Packet Access HSPA Enhanced High Speed Packet Access HSUPA High Speed Up-link Packet Access IMEI International Mobile Equipment Identity...
  • Page 77: Safety And Precautions

    Cavli C42GM Hardware Manual 9.3 Safety and precautions To use the wireless device safely, the terminal device informs the user of the relevant safety information: ✓ Interference: When the use of wireless devices is prohibited or the use of the device may cause interference and security of the electronic device, turn off the wireless device.
  • Page 78 10. CE EU Conformity Statement HEREBY, CAVLI INC DECLARES THAT THE EQUIPMENT TYPE LTE MODEM, MODEL C42GM IS IN COMPLIANCE WITH DIRECTIVE 2014/53/EU. MANUFACTURER ADDRESS: 99 SOUTH ALMADEN BLVD., SUITE 600, SAN JOSE, CA 95113 UNITED STATES. THE FULL TEXT OF THE EU DECLARATION OF CONFORMITY IS AVAILABLE AT THE FOLLOWING INTERNET ADDRESS: https://www.cavliwireless.com...
  • Page 79 The final host / module combination may also need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device. The user’s manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
  • Page 80 étiquette indiquant le numéro de certification d'Innovation, Sciences et Développement économique Canada pour le module, préc édéd u mot «Contient»o u d'un libellés emblable exprimant la même signification, comme suit: "Contient IC:31113-C42GM” ou "où: 31113-C42GM est le numéro de certification du module".

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