Telit Wireless Solutions 1vv0300773a manual GE863-PRO3Hardware User Guide

Page 30

GE863-PRO3Hardware User Guide

1vv0300773a Rev. 0 - 24/01/08

Last but not least, in some applications it is highly desired that the charging process restarts when the battery is discharged and its voltage drops below a certain threshold, GE863-PRO3internal charger does it.

As you can see, the charging process is not a trivial task to be done; moreover all these operations should start only if battery temperature is inside a charging range, usually 5°C - 45°C.

The GE863-PRO3measures the temperature of its internal component, in order to satisfy this last requirement, it's not exactly the same as the battery temperature but in common application the two temperature should not differ too much and the charging temperature range should be guaranteed.

NOTE: For all the threshold voltages, inside the GE863-PRO3all thresholds are fixed in order to maximize Li-Ion battery performances and do not need to be changed.

NOTE: In this application the battery charger input current must be limited to less than 400mA. This can be done by using a current limited wall adapter as the power source.

NOTE: When starting the charger from Module powered off the startup will be in CFUN4; to activate the normal mode a command AT+CFUN=1 has to be provided. This is also possible using the POWER ON. There is also the possibility to activate the normal mode using the ON/OFF* signal.

In this case, when HW powering off the module with the same line (ON/OFF*) and having the charger still connected, the module will go back to CFUN4.

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved

page 30 of 64

Image 30
Contents GE863-PRO3Hardware User Guide Contents GE863-PRO 3 Hardware User Guide This document is relating to the following products Disclaimer Overview GE863-PRO3Mechanical Dimensions Telit GE863-PRO3module overall dimension areLength 41,4 mm Width 31,4 mm Thickness 3,6 mm GE863-PRO3module connections C11 Simrst C12 Simio D1 Charge D2 VAUX1 DTE GPIO7 / Rftxdisable GSMC2 Vbatt C3 Vrtc D10 GND D11 Simvcc D12 Simclk E1 GND E2 PwrmonPB9 Nrst Reset ARMPB8 ON/OFF*-APPB1 PB0PB2 PB7XOUT32 HdmbXIN32 PA3VBATT2 Reserved GNDBalls Layout ARM Port IO multiplexing ARM PIO Controller a multiplexingARM PIO Controller B multiplexing ARM PIO Controller C multiplexing Hardware Commands Turning on the GE863-PRO3GSM/GPRS Engine10k +1,8/5Hardware Unconditional Reboot of GSM/GPRS Engine 2Turning OFF the GE863-PRO3GSM/GPRS EngineHardware shutdown Turning ON/OFF the GE863-PRO3ARM ON/OFF*-AP # GND AT+CFUN=1 Power SupplyGSM Power Supply Requirements AT+CFUN=4ARM Power Supply Requirements Vrtc Backup supplySuggested circuit is General Design RulesElectrical design Guidelines 817A19A Seiko1.1 + 5V input Source Power Supply Design Guidelines 1.2 + 12V input Source Power Supply Design Guidelines Battery Source Power Supply Design Guidelines Battery Charge control Circuitry Design Guidelines GE863-PRO3Hardware User Guide Thermal Design Guidelines Power Supply PCB layout Guidelines Antenna GSM Antenna RequirementsGSM Antenna PCB line Guidelines 50 ohmGSM Antenna installation Guidelines Electro Magnetic Interference GuidelinesLogic level specifications Absolute Maximum Ratings -Not Functional Parameter Min MaxOperating Range Interface levels Cmos Level Min Max Cmos 1.8V-A Current characteristics Level Typical GSM Gpio Current characteristics Level TypicalCmos 3.1V Current characteristics Level Typical Operating Range Interface levels Cmos Vrtc Level Min MaxSignal Function Phone resetSignal Min Max Serial Ports Modem Serial Port Modem Serial Port 2 DebugSignals of the GE863-PRO3GSM/GPRS engine serial port are RS232 level translation An example of level translation circuitry of this kind is GE863-PRO3Hardware User Guide Audio Section Overview Input Lines Microphone Short descriptionInput Lines Characteristics Micmt 1st differential microphone pathOutput Lines Speaker Output Lines Characteristics Earmt Differential Line-out Drivers PathEvaluation Kit for Telit GE863- PRO3 Modules 10 GSM/GPRS General Purpose I/O ON/OFFUsing the RF Transmission Control GPIO7 Using a Gpio Pad as InputUsing a Gpio Pad as Output 10.4Using the Rftxmon Output GPIO3Using the Alarm Output Using the Buzzer Output GPIO410.7Indication of network service availability LED statusDevice Status 10.9VAUX1 power output Operating Range VAUX1 power supplyRTC Bypass out Stencil Mounting the GE863-PRO3on the Application Board11.1General PCB pad DesignSolder paste 11.1.4 GE863-PRO3Solder Reflow Following is the recommended solder reflow profile3C/second max Packing System Section A-AModules orientation on tray Moisture Sensibility Conformity Assessment Issues Safety Recommandations Document Change Log Revision Date Changes

1vv0300773a specifications

Telit Wireless Solutions 1VV0300773A is an advanced cellular module specifically designed for a wide range of IoT applications. This module is part of Telit’s extensive portfolio, which is renowned for its reliability and innovation in the wireless communication space. The 1VV0300773A module stands out due to its compact design and robust performance, making it an ideal choice for developers looking to integrate cellular connectivity into their projects.

One of the main features of the 1VV0300773A is its support for multiple communication protocols, which enhances its versatility. The module is designed to support various LTE CAT M1 and NB-IoT networks. These technologies are critical for low-power wide-area network (LPWAN) applications, allowing devices to stay connected over long distances while consuming minimal energy. This is particularly beneficial for battery-operated devices in sectors like smart agriculture, smart cities, and industrial IoT.

The module is equipped with a powerful ARM Cortex-M3 processor, which enables efficient data processing and facilitates complex computations required for many IoT applications. Additionally, it features a comprehensive set of interfaces, including UART, GPIO, and I2C, enabling easy integration with various sensors and peripherals. This modularity ensures that developers can customize their applications based on specific business needs.

Security is another crucial aspect of the 1VV0300773A module. Telit incorporates advanced security features including secure boot, data encryption, and a secure element, ensuring that data transmitted over cellular networks is protected against unauthorized access. This commitment to security is vital in today’s increasingly connected world, where data privacy is a top concern.

Furthermore, the 1VV0300773A module supports extensive over-the-air firmware updates, allowing manufacturers to deploy updates and enhancements seamlessly. This capability extends the lifecycle of devices in the field and ensures that they can adapt to new requirements and security standards over time.

In summary, Telit Wireless Solutions 1VV0300773A offers a blend of advanced features, robust technologies, and essential characteristics tailored for the rapidly evolving IoT landscape. Its combination of multi-network support, secure communication, and efficient processing makes it a standout choice for developers and enterprises looking to enhance their connectivity solutions.