Termon, Reset, UART1DCD, Ledstatus, UART1CTS, Vcoin | Huawei MG323

		HUAWEI MG323 GSM M2M Module
		Hardware Guide					Description of the Application Interfaces

	Pin	Pin Name			I/O	Description		DC Characteristics (V)
	No.
	No.	Normal	MUX					Min.	Tpy.	Max
		Normal	MUX					Min.	Tpy.	Max

	17	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	18	GND	-		-	Ground		-	-	-

	19	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	20	TERM_ON	-		I	Power on/power off		-	internal	-
						control			pulled up

	21	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	22	RESET	-		I	Hardware reset		–0.40	2.80	3.20

	23	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	24	UART1_DCD	-		O	DCE data carrier detect		–0.40	2.80	3.20

	25	LED_STATUS	-		O	Network status		–0.40	2.80	3.20
						indication

	26	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	27	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	28	UART1_CTS	-		O	DCE clear to send		–0.40	2.85	3.25

	29	UART1_RD	-		O	DCE transmit data		–0.40	2.85	3.25

	30	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	31	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	32	UART1_DTR	-		I	DCE data terminal		–0.40	2.80	3.20
						ready

	33	UART1_TD	-		I	DCE receive data		–0.40	2.80	3.20

	34	UART1_RTS	-		I	DCE request to send		–0.40	2.85	3.25

	35	VCOIN	-		P	Standby power input of		2.00	3.00	3.15
						the RTC

	36	UART1_DSR	-		O	DCE data set ready		–0.40	2.80	3.20

	37	NC	-		-	Not connected, please		-	-	-
						keep this pin open

	38	UART1_RING	-		O	DCE ring indicator		–0.40	2.80	3.20


	Issue 06 (2013-06-13)				Huawei Proprietary and Confidential					15
	Issue 06 (2013-06-13)			Copyright © Huawei Technologies Co., Ltd.						15
				Copyright © Huawei Technologies Co., Ltd.

Image 15

Huawei MG323 manual Termon, Reset, UART1DCD, Ledstatus, UART1CTS, UART1RD, UART1DTR, UART1TD, UART1RTS, Vcoin, UART1DSR

Contents

Hardware Guide Issue Date No Warranty Creation About This DocumentHistory Version Date Chapter Descriptions Version Date Chapter Descriptions Updated .8 Audio Interface Updated -3 RecommendedSpecifications of the antenna interface Contents Electrical and Reliability Features Overview Introduction Function Overview Feature DescriptionOverall Description About This Chapter Gprs Gprs Class DRX=2DRX=5 DRX=9 SMS 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 Ledstatus ResetTermon UART1DCD Vbat Power InterfaceOverview VIO DCE Pin No Signal Name DescriptionVbat Interface GND Vcoin 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 data set DCE is ready DCE to DTE Ready Circuit Recommended for the Uart InterfaceDCE receive DTE transmits DTE to DCE Data Serial data DCE data DTE is ready DTE to DCE Terminal ready Reset signal of the SIM card Clock signal of the SIM cardPower supply of the SIM card Data 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 Uplink frequency range GSM 824 849 MHz RF Specifications of the Antenna InterfaceSpecification Minimum Typical Maximum Unit Value ESD Protection for the Antenna Interface Specification Minimum Typical Maximum Unit Value Polarization Linear polarization Pattern Omnidirectional Specifications of the Antenna Interface Extreme Working Conditions Electrical and Reliability FeaturesSymbol Specification Minimum Value Maximum Value Unit External power voltage Electrical Criteria of Application Interfaces Operating and Storage Temperatures and HumiditySpecification Minimum Value Maximum Value Unit Pin No Signal Name Than 3.3 Function Signal Name Waveform Remarks LevelPower supply Voltage great drop. The Vbat power voltage Ledstatu Pins 41, 43, 45, 47, and 49 are power GND ExternalPower pin VBAT=0 UART1 UART1RD UART1RINUART1DSR UART1RTS UART1DTR UART1CTS UART1DCD Parameter Minimum Value Typical Value Maximum Value Unit Power Supply FeaturesInput Power Supply Working Current Working Mode Typical value Unit Remark ConfigurationBand Typical Unit Test Condition Standard Reliability FeaturesConfiguration Value Up/1 Down 123 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 RTC PbcchPCB PDU