Manuale UtenteSommarioTable of Contents6List of Figures10List of Tables12Preface14Manual Scope14Target Audience14Manual Organization14Applicable Documents14Regulatory Requirements15Regulatory Statement (Safety)15Antenna and Transmission Safety Precautions15Standards16Contact Us17Text Conventions17Field Service18General Safety18Caring for the Environment19Limitation of Liability20Warranty Notification20How to Get Warranty Service?21Claiming21Conditions22What is Not Covered by the Warranty22Installed Data23Out of Warranty Repairs23Revision History24Chapter 1: Introduction26Product Specifications27Regulatory Approvals30CFR 47 Part 15.19 specifies label requirements30CFR 47 Part 15.21 Information to user30CFR 47 Part 15.105 Information to the user30Chapter 2: Hardware Interface Description32Architecture Overview32Digital Block33Analog Block33GSM Transceiver Block33Operating Modes34Power Supply35Power Supply Design35Power Consumption36Power On/Off Operation39Turning the G24 On39Power Supply Turn-on39Turning the G24 On Using ON_N40Turning the G24 On Using IGN41Turning the G24 Off41Turning the G24 Off Using ON_N41Turning the G24 Off Using IGN42Power Loss shut down43Turning the G24 Off Using AT+MRST43Low Power Mode44Activating Low Power Mode44Serial Interface During Low Power Mode45Terminating Low Power Mode45Temporary Termination of Low Power Mode46Permanent termination of Low Power Mode47Real Time Clock48Serial Interfaces49Primary UART (UART1)49Secondary UART (UART2)50USB Interface50SIM Interface51SIM Connection51SIM Design Guidelines52Audio Interface53Handset Microphone Port53Headset Microphone Port54Speaker Port55Headset Detection57Alert Loudspeaker Port58Digital Audio Interface59Voiceband Audio60Stereo Audio61Operating Modes61Basic Mode61Advanced Mode62Audio Programming Interface63Audio Algorithms63Gain Control64Audio Design65Analog Ground66A/D Interface67Power Supply A/D67Temperature A/D68General Purpose A/D70Controls and Indicators Interface71Reset71VREF Reference Regulator71OFF Mode72Standby Mode72Active Mode72Wakeup Out73Antenna Detection74GPRS/EGPRS Detection74Transmission Indicator75General Purpose I/O75Antenna Interface76Chapter 3: Electrical and Environmental Specifications78Absolute Maximum Ratings78Environmental Specifications79Application Interface Specifications79Chapter 4: Mechanical Specifications86Board Dimensions86Interface Connector Specifications87Mating Connectors88RF Connector Specifications89Mating Connector89G24 Mounting91Chapter 5: Service and Testing92Service92Who to Contact?92Required Query Information92Service Centers94Testing a Standalone Unit95Test Setup95Test Procedure97Acronyms and Abbreviations98A98B98C98D98E98F99G99H99I99L99M99O99P99R100S100T100U101V101Index102A102B102E102G102O102P102R102S102T102U102Dimensioni: 1,09 MBPagine: 105Language: EnglishApri il manuale