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Huawei MG323 manual Function, Signal Name, Waveform and, Remarks, Level

Models: MG323

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	HUAWEI MG323 GSM M2M Module
	Hardware Guide				Electrical and Reliability Features

	Function	Signal Name	I/O	Waveform and	Remarks
				Level
		SIM_CLK	O	VoHmin=2.03 V	Clock signal of the SIM card
				VoLmax=0.58 V
		VSIM	P	VoHmax=3.00 V	Power voltage of the SIM card
				Votype=2.90 V
				VoHmin=2.75 V
		GND	-		GND of the SIM card

	SIM card	SIM_RST	O	VoHmin=1.44 V	Reset signal of the SIM card
	interface			VoLmax=0.36 V
	(Class C)			VoLmax=0.36 V
	(Class C)	SIM_DATA	I/O	VoHmin=1.26 V	Data signal of the SIM card
		SIM_DATA	I/O	VoHmin=1.26 V	Data signal of the SIM card
				VoLmax=0.3 V
				VILmax=0.36 V
				VIHmin=1.26 V
		SIM_CLK	O	VoHmin=1.26V	Clock signal of the SIM card
				VoLmax=0.36V
		VSIM	P	VoHmax=1.95 V	Power voltage of the SIM card
				Votype=1.80 V
				VoHmin=1.65 V
		GND	-		GND of the SIM card

	UART1	UART1_RD	O	VoLmax=0.10 V	This interface can be used to transmit AT
	communicatio			VoHmin=2.70 V	commands and data.
	communicatio	UART1_TD	I		commands and data.
	n interface
	n interface			VILmax=0.40 V
		UART1_RIN	O	VILmax=0.40 V
		UART1_RIN	O	VIHmin =2.40 V
		G		VIHmin =2.40 V
		G

		UART1_DSR	O

		UART1_RTS	I

		UART1_DTR	I

		UART1_CTS	O

		UART1_DCD	O

	Analog audio	EXTMIC_N	AI		Negative end of differential headset MIC input
	interface				through channel 2

		EXTMIC_P	AI		Positive end of differential headset MIC input
					through channel 2

		INTMIC_P	AI		Positive end of differential handset MIC input
					through channel 1

	Issue 06 (2013-06-13)	Huawei Proprietary and Confidential	39
		Copyright © Huawei Technologies Co., Ltd.

Image 39

Huawei MG323 manual Function, Signal Name, Waveform and, Remarks, Level

Contents

HUAWEI MG323 GSM M2M Module Hardware GuideNO WARRANTY Trademarks and PermissionsImport and Export Regulations Date About This DocumentHistory VersionDescriptions VersionDate ChapterChapter Issue 06Version Date3 Description of the Application Interfaces Contents6 Mechanical Specifications 5 Electrical and Reliability Features7 Appendix A Circuits of Typical Interfaces 8 Appendix B Acronyms and Abbreviations1.1 Overview 1 Introduction2.2 Function Overview Feature2 Overall Description 2.1 About This ChapterDescription FeatureSee the HUAWEI MG323 Series Wireless Module AT Command Interface SpecificationDescription 2.3 Application Block Diagram2.4 Circuit Block Diagram FeatureOverall Description Issue 06HUAWEI MG323 GSM M2M Module Hardware Guide3.2 B2B Connector Interface 3 Description of the Application Interfaces3.1 About This Chapter Description DC CharacteristicsPin Name NormalNormal DC CharacteristicsPin Name DescriptionPin Name 3.3 Power Interface3.3.1 Overview DC CharacteristicsPin No Signal Name3.3.2 VBAT Interface Module3.4.1 Overview 3.4 Power-On and Power-Off Time Sequence3.3.3 VCOIN Interface 3.3.4 VIO InterfaceDescription 3.4.2 Power-On Time SequenceSignal Name Pin No3.5.1 Overview 3.5 Signal Control Interface3.4.3 Power-Off Time Sequence 3.4.4 RESETDescription 3.5.2 Input Signal Control PinsSignal Name Pin No3.5.3 Output Signal Control Pin Working or Network StatusOutput Status of the LEDSTATUS Pin Signal Name 3.6 UART Interface3.6.1 Overview DirectionPin No 3.6.2 Circuit Recommended for the UART InterfaceSignal Name FeaturePin No 3.7 SIM Card Interface3.7.1 Overview Signal NameDescription 3.7.2 Circuit Recommended for the SIM Card InterfaceSignal Name Pin No3.8 Audio Interface Description of the Application Interfaces IssueHUAWEI MG323 GSM M2M Module Hardware Guide4.2 Antenna Installation 4 Antenna Interface4.1 About This Chapter Type Material 4.3 Coaxial Cable and RF ConnectorRated Condition EnvironmentalIt is recommended that you use the Hirose coaxial cable with the RF Minimum 4.5 RF Specifications of the Antenna InterfaceSpecification 4.4 ESD Protection for the Antenna InterfaceMaximum SpecificationMinimum Typical4.6 Specifications of the Antenna Interface 5.2 Extreme Working Conditions 5 Electrical and Reliability FeaturesSymbol 5.1 About This ChapterSignal Name 5.3 Operating and Storage Temperatures and Humidity5.4 Electrical Criteria of Application Interfaces SpecificationLevel FunctionWaveform and RemarksRemarks Signal NameFunction Waveform andRemarks Signal NameFunction Waveform andParameter 5.5 Power Supply Features5.5.1 Input Power Supply 5.5.2 Working CurrentRemark ConfigurationWorking Mode Typical valueConfiguration 5.6 Reliability FeaturesTest Condition StandardStandard Test ConditionAir Discharge 5.7 ESD FeaturesESD Test Standard Contact Discharge6 Mechanical Specifications 6.2 Dimensions6.1 Overview HUAWEI MG323 GSM M2M Module 6.3 Dimensions of the B2B ConnectorMechanical Specifications Issue 06Height mm ModelStacking HRS Number6.4 MG323 Module Installation Description Figure 6-6 MG323 module installation 6.5 Specification Selection for Fasteners Hardware Guide Mechanical SpecificationsIssue 06 HUAWEI MG323 GSM M2M ModuleHUAWEI MG323 GSM M2M Module Issue 06RESET 7 Appendix A Circuits of Typical Interfaces8 Appendix B Acronyms and Abbreviations Acronym or AbbreviationExpansion Acronym or Abbreviation ExpansionPBCCH