Hardware Unconditional Reboot | Telit Wireless Solutions GE863-QUAD

GE863-QUAD

GE863-PY

1vv0300715 Rev. 1 - 19/09/06

•by software command (see GE863-QUAD/PY Software User Guide)

•by hardware shutdown

When the device is shut down by software command or by hardware shutdown, it issues to the network a detach request that informs the network that the device will not be reachable any more.

3.2.1Hardware shutdown

To turn OFF the GE863-QUAD/PY the pad ON# must be tied low for at least 1 second and then released.

The same circuitry and timing for the power on shall be used.

The device shuts down after the release of the ON# pad.

TIP: To check if the device has powered off, the hardware line PWRCTL should be monitored. When PWRCTL goes low, the device has powered off.

3.3 Hardware Unconditional Reboot

To unconditionally Reboot the GE863-QUAD/PY, the pad RESET# must be tied low for at least 200 milliseconds and then released.

The maximum current that can be drained from the ON# pad is 0,15 mA. A simple circuit to do it is:

RESET#

Unconditional Reboot impulse

GND

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Telit Wireless Solutions GE863-QUAD, GE863-PY manual Hardware Unconditional Reboot, Hardware shutdown

Contents

GE863-QUAD GE863-PY Hardware User Guide Contents 10.2 10.110.3 10.4 13.1 12.113.2 This document is relating to the following products Overview PIN-OUT GE863 module connections Pin Signal Function Internal Type Pull up Pin Signal Function Internal Type Pins Layout Turning on the GE863-QUAD/PY Hardware Commands Turning off of the device can be done in two ways Turning OFF the GE863-QUAD/PY Hardware shutdown Hardware Unconditional Reboot GE863-QUAD 1Power Supply Requirements Power SupplyGE863-QUAD/PY power requirements are Electrical design Guidelines 2General Design Rules An example of linear regulator with 5V input is 1.2 + 12V input Source Power Supply Design Guidelines An example of switching regulator with 12V input is Battery Source Power Supply Design Guidelines Battery Charge control Circuitry Design Guidelines Thermal Design Guidelines Power Supply PCB layout Guidelines GSM Antenna Requirements Antenna Serial Ports GSM Antenna installation GuidelinesGSM Antenna PCB line Guidelines Level Min Max Absolute Maximum Ratings -Not Functional Parameter Min Max Number Pad Number Signals in the Uart connector on the EVK are17-28-36 Ground 45-48-50-56 Clear to Send Output from the GE863-QUAD/PY that 2MODEM Serial Port 2 Python Debug It is available on the following pins3RS232 level translation An example of level translation circuitry of this kind is 5V Uart level translation GE863-QUAD Audio Section Overview GM863-GPS Echo canceller type Handset Microphone Paths Characteristic and RequirementsEcho canceller type Car kit hands-free + 20dB You can set GA= +20dB to use standard resistor values That means TIP environment consideration Other considerations General Design Rules Balanced Microphone Biasing Microphone Biasing Unbalanced Microphone Biasing GE863-QUAD Buffered Balanced Mic Microphone BufferingSample circuit can be Buffer gain is given by the formula Gain = RR604605 = RR607606 Buffered Unbalanced Single Ended Microphone Buffer bandwidth at -3dB shall be 4KHz Freq . = 2π * R719* C726 2π * R711* C727 GE863-QUAD Short description Output Lines Speaker SW volume level step Number of SW volume steps Output Lines Characteristics Noise Filtering Handset Earphone Design An example of internal Ear amplifier could be Hands-Free Earphone Low Power Design Car Kit Speakerphone Design Short Description Evaluation Kit for Telit Modules EVK2 @ 350mW 2 EVK2 Audio Lines Characteristics ESD Data Integrity SIM Supply Schematic Layout Using a Gpio Pad as Output Using a Gpio Pad as InputGeneral Purpose I/O Using the Buzzer Output GPIO7 10.3Using the Alarm Output GPIO6 11.1DAC Converter DAC and ADC sectionDescription Min Max Units Command is AT#DAC=enable,value An AT command is available to use the DAC functionEnabling DAC Low Pass Filter Example Input Voltage range AD conversion Bits Resolution Using ADC Converter11.2ADC Converter 12.1Transchip Camera CameraType Sensitivity Lux Camera Interface Connectors Camera Physical Detail & Connector Camera Socket Connector Camera Board Module Main Block Diagram for supported cameras Schematic Diagrams for supported camera Example usage script for camera Camera setting shown here are the defaults onesTaking an reading a photo Mounting the GE863-QUAD / PY on the Application Board 13.2Module Finishing & Dimensions13.1General Lead-free Alloy Surface finishing Ni/Au for all test pads Recommended foot print for the application Stencil Debug of the GE863 in ProductionPCB pad Design Solder paste Following is the recommended solder reflow profile 13.2.6 GE863-QUAD / PY Solder Reflow GE863-QUAD Section A-A Packing System Modules orientation on tray Moisture Sensibility Conformity Assessment Issues Safety Recommandations Revision Date Changes Document Change Log21/02/06 19/09/06