Overall Description, About This Chapter | Huawei MG323 guide

HUAWEI MG323 GSM M2M Module
Hardware Guide	Overall Description

2 Overall Description

2.1 About This Chapter

This chapter gives a general description of the MG323 module and provides:

Function Overview

Application Block Diagram

Circuit Block Diagram

2.2Function Overview

Table 2-1 Feature

Feature	Description

Working bands	Four supported frequency bands: GSM850 MHz/900 MHz/1800
	MHz/1900 MHz

Maximum	GSM850 Class 4 (2 W)
transmission
transmission	EGSM900 Class 4 (2 W)
power	EGSM900 Class 4 (2 W)
	DCS1800 Class 1 (1 W)

	PCS1900 Class 1 (1 W)

Receiver	< –107 dBm
sensitivity

Operating	Normal operating temperature: –20°C to +70°C
Temperature	[1]	: –30°C to +75°C
	Extended operating temperature	: –30°C to +75°C
Ambient	–40°C to +85°C
temperature for
storage

Power voltage	3.3 V to 4.8 V (3.8 V is recommended.)

	Issue 06 (2013-06-13)	Huawei Proprietary and Confidential	9
		Copyright © Huawei Technologies Co., Ltd.

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Huawei MG323 manual Overall Description, About This Chapter, Function Overview, Feature Description

Contents

Hardware Guide Issue Date No Warranty History About This DocumentVersion Date Chapter Descriptions Creation Version Date Chapter Descriptions Updated .8 Audio Interface Updated -3 RecommendedSpecifications of the antenna interface Contents Electrical and Reliability Features Overview Introduction Overall Description Feature DescriptionAbout This Chapter Function Overview DRX=5 DRX=9 DRX=2SMS Gprs Gprs Class Circuit Block Diagram Application Block Diagram 2Circuit block diagram of the MG323 module Description of the Application Interfaces B2B Connector Interface Min Tpy Max Pin Pin Name Description DC Characteristics Normal Termon ResetUART1DCD Ledstatus Overview Power InterfaceVIO Vbat Vbat Interface Pin No Signal Name DescriptionGND Vcoin DCE Power-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 Pin for network status LED Input Signal Control Pins Output Signal Control Pin Application DeviceWorking or Network Status Uart Interface Pin No Signal Name Description Feature Direction DCE receive DTE transmits DTE to DCE Data Serial data Circuit Recommended for the Uart InterfaceDCE data DTE is ready DTE to DCE Terminal ready DCE data set DCE is ready DCE to DTE Ready Power supply of the SIM card Clock signal of the SIM cardData signal of the SIM card Reset signal of the SIM card Circuit Recommended for the SIM Card Interface Ground signal of the SIM card Audio Interface 12External circuit for 32 Ω handsets/16 Ω headsets 13External circuit for the microphone interface Antenna Interface Antenna Installation Environmental Type Material Condition Coaxial Cable and RF Connector Huawei MG323 GSM M2M Module Hardware Guide Antenna Interface Specification Minimum Typical Maximum Unit Value RF Specifications of the Antenna InterfaceESD Protection for the Antenna Interface Uplink frequency range GSM 824 849 MHz Specification Minimum Typical Maximum Unit Value Polarization Linear polarization Pattern Omnidirectional Specifications of the Antenna Interface Symbol Specification Minimum Value Maximum Value Unit Electrical and Reliability FeaturesExternal power voltage Extreme Working Conditions Specification Minimum Value Maximum Value Unit Operating and Storage Temperatures and HumidityPin No Signal Name Electrical Criteria of Application Interfaces Power supply Function Signal Name Waveform Remarks LevelVoltage great drop. The Vbat power voltage Than 3.3 Power pin Pins 41, 43, 45, 47, and 49 are power GND ExternalVBAT=0 Ledstatu UART1 UART1RD UART1RINUART1DSR UART1RTS UART1DTR UART1CTS UART1DCD Input Power Supply Power Supply FeaturesWorking Current Parameter Minimum Value Typical Value Maximum Value Unit Working Mode Typical value Unit Remark ConfigurationBand Typical Unit Configuration Value Reliability FeaturesUp/1 Down 123 Test Condition Standard Test 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 1Dimensions of the MG323 module unit mm Dimensions of the B2B Connector Model Stacking HRS Number Height mm 5Structure fixing hole MG323 Module Installation Description 6MG323 module installation 7Machine screw dimensions Specification Selection for Fasteners 8Nut dimensions 1Circuits of typical interfaces in the MG323 module Appendix a Circuits of Typical Interfaces Acronym or Abbreviation Expansion Appendix B Acronyms and Abbreviations PCB PbcchPDU RTC