Huawei MG323 manual Pbcch, Pcb, Pdu, Rtc, Sim, Ttl, Tvs, Uart, Vswr

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HUAWEI MG323 GSM M2M Module
Hardware Guide		Appendix B Acronyms and Abbreviations

	Acronym or Abbreviation	Expansion

	PBCCH	Packet Broadcast Control Channel

	PCB	Printed Circuit Board

	PDU	Protocol Data Unit

	RF	Radio Frequency

	RoHS	Restriction of the Use of Certain Hazardous
		Substances

	RTC	Real-time Clock

	SIM	Subscriber Identity Module

	TTL	Transistor-transistor Logic

	TVS	Transient Voltage Suppressor

	UART	Universal Asynchronous Receiver-transmitter

	VSWR	Voltage Standing Wave Ratio

	Issue 06 (2013-06-13)	Huawei Proprietary and Confidential	54
		Copyright © Huawei Technologies Co., Ltd.

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Contents Issue Date Hardware GuideNo Warranty Version Date Chapter Descriptions About This DocumentHistory CreationVersion Date Chapter Descriptions Updated .8 Audio Interface Updated -3 RecommendedSpecifications of the antenna interface Contents Electrical and Reliability Features Introduction OverviewAbout This Chapter Feature DescriptionOverall Description Function OverviewSMS DRX=2DRX=5 DRX=9 Gprs Gprs ClassApplication Block Diagram Circuit Block Diagram2Circuit block diagram of the MG323 module B2B Connector Interface Description of the Application InterfacesPin Pin Name Description DC Characteristics Normal Min Tpy MaxUART1DCD ResetTermon LedstatusVIO Power InterfaceOverview VbatGND Vcoin Pin No Signal Name DescriptionVbat Interface DCEPower-On and Power-Off Time Sequence Vcoin InterfaceVIO Interface Power-On Time Sequence Pin for controlling power-on and power-offPin for resetting the hardware Signal Control Interface Power-Off Time SequenceReset Input Signal Control Pins Pin for network status LEDOutput Signal Control Pin Application DeviceWorking or Network Status Pin No Signal Name Description Feature Direction Uart InterfaceDCE data DTE is ready DTE to DCE Terminal ready Circuit Recommended for the Uart InterfaceDCE receive DTE transmits DTE to DCE Data Serial data DCE data set DCE is ready DCE to DTE ReadyData signal of the SIM card Clock signal of the SIM cardPower supply of the SIM card Reset signal of the SIM cardGround signal of the SIM card Circuit Recommended for the SIM Card Interface12External circuit for 32 Ω handsets/16 Ω headsets Audio Interface13External circuit for the microphone interface Antenna Installation Antenna InterfaceCoaxial Cable and RF Connector Environmental Type Material ConditionHuawei MG323 GSM M2M Module Hardware Guide Antenna Interface ESD Protection for the Antenna Interface RF Specifications of the Antenna InterfaceSpecification Minimum Typical Maximum Unit Value Uplink frequency range GSM 824 849 MHzSpecification Minimum Typical Maximum Unit Value Specifications of the Antenna Interface Polarization Linear polarization Pattern OmnidirectionalExternal power voltage Electrical and Reliability FeaturesSymbol Specification Minimum Value Maximum Value Unit Extreme Working ConditionsPin No Signal Name Operating and Storage Temperatures and HumiditySpecification Minimum Value Maximum Value Unit Electrical Criteria of Application InterfacesVoltage great drop. The Vbat power voltage Function Signal Name Waveform Remarks LevelPower supply Than 3.3VBAT=0 Pins 41, 43, 45, 47, and 49 are power GND ExternalPower pin LedstatuUART1 UART1RD UART1RINUART1DSR UART1RTS UART1DTR UART1CTS UART1DCD Working Current Power Supply FeaturesInput Power Supply Parameter Minimum Value Typical Value Maximum Value UnitWorking Mode Typical value Unit Remark ConfigurationBand Typical Unit Up/1 Down 123 Reliability FeaturesConfiguration Value Test Condition StandardTest Condition Standard ESD Features ESD Test Standard Contact Discharge Air DischargeEN61000-4-2 ±4 kV ±8 kV Mechanical Specifications DimensionsDimensions L x W x H 35 mm x 32.5 mm x 3.05 mm Dimensions of the B2B Connector 1Dimensions of the MG323 module unit mmModel Stacking HRS Number Height mm MG323 Module Installation Description 5Structure fixing hole6MG323 module installation Specification Selection for Fasteners 7Machine screw dimensions8Nut dimensions Appendix a Circuits of Typical Interfaces 1Circuits of typical interfaces in the MG323 moduleAppendix B Acronyms and Abbreviations Acronym or Abbreviation ExpansionPDU PbcchPCB RTC

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