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Huawei MG323 manual Specification Selection for Fasteners

Models: MG323

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HUAWEI MG323 GSM M2M Module
Hardware Guide	Mechanical Specifications

6.5 Specification Selection for Fasteners

To ensure that the MG323 module is firmly fixed on the interface board when using the MG323 module, you are recommended to you use the M1.6 or M1.8 machine screw. You can also customize the screws. The fastener components in the following figures are recommended. The machine screw dimensions are M1.6×7.5×3.0×1.0. It is recommended that you plate gold on the metal fastener. Figure 6-7shows the specific dimensions for the fastener components.

Figure 6-7Machine screw dimensions

Protecting from Screw Loosening

Issue 06 (2013-06-13)	Huawei Proprietary and Confidential	50
	Copyright © Huawei Technologies Co., Ltd.

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Huawei MG323 manual Specification Selection for Fasteners

Contents

Hardware Guide HUAWEI MG323 GSM M2M ModuleImport and Export Regulations NO WARRANTYTrademarks and Permissions Version About This DocumentHistory DateChapter VersionDate DescriptionsDate Issue 06Version ChapterContents 3 Description of the Application Interfaces8 Appendix B Acronyms and Abbreviations 5 Electrical and Reliability Features7 Appendix A Circuits of Typical Interfaces 6 Mechanical Specifications1 Introduction 1.1 Overview2.1 About This Chapter Feature2 Overall Description 2.2 Function OverviewInterface Specification FeatureSee the HUAWEI MG323 Series Wireless Module AT Command DescriptionFeature 2.3 Application Block Diagram2.4 Circuit Block Diagram DescriptionHardware Guide Issue 06HUAWEI MG323 GSM M2M Module Overall Description3.1 About This Chapter 3.2 B2B Connector Interface3 Description of the Application Interfaces Normal DC CharacteristicsPin Name DescriptionDescription DC CharacteristicsPin Name NormalDC Characteristics 3.3 Power Interface3.3.1 Overview Pin NameModule Signal Name3.3.2 VBAT Interface Pin No3.3.4 VIO Interface 3.4 Power-On and Power-Off Time Sequence3.3.3 VCOIN Interface 3.4.1 OverviewPin No 3.4.2 Power-On Time SequenceSignal Name Description3.4.4 RESET 3.5 Signal Control Interface3.4.3 Power-Off Time Sequence 3.5.1 OverviewPin No 3.5.2 Input Signal Control PinsSignal Name DescriptionOutput Status of the LEDSTATUS Pin 3.5.3 Output Signal Control PinWorking or Network Status Direction 3.6 UART Interface3.6.1 Overview Signal NameFeature 3.6.2 Circuit Recommended for the UART InterfaceSignal Name Pin NoSignal Name 3.7 SIM Card Interface3.7.1 Overview Pin NoPin No 3.7.2 Circuit Recommended for the SIM Card InterfaceSignal Name Description3.8 Audio Interface Hardware Guide IssueHUAWEI MG323 GSM M2M Module Description of the Application Interfaces4.1 About This Chapter 4.2 Antenna Installation4 Antenna Interface Environmental 4.3 Coaxial Cable and RF ConnectorRated Condition Type MaterialIt is recommended that you use the Hirose coaxial cable with the RF 4.4 ESD Protection for the Antenna Interface 4.5 RF Specifications of the Antenna InterfaceSpecification MinimumTypical SpecificationMinimum Maximum4.6 Specifications of the Antenna Interface 5.1 About This Chapter 5 Electrical and Reliability FeaturesSymbol 5.2 Extreme Working ConditionsSpecification 5.3 Operating and Storage Temperatures and Humidity5.4 Electrical Criteria of Application Interfaces Signal NameRemarks FunctionWaveform and LevelWaveform and Signal NameFunction RemarksWaveform and Signal NameFunction Remarks5.5.2 Working Current 5.5 Power Supply Features5.5.1 Input Power Supply ParameterTypical value ConfigurationWorking Mode RemarkStandard 5.6 Reliability FeaturesTest Condition ConfigurationTest Condition StandardContact Discharge 5.7 ESD FeaturesESD Test Standard Air Discharge6.1 Overview 6 Mechanical Specifications6.2 Dimensions Issue 06 6.3 Dimensions of the B2B ConnectorMechanical Specifications HUAWEI MG323 GSM M2M ModuleHRS Number ModelStacking Height mm6.4 MG323 Module Installation Description Figure 6-6 MG323 module installation 6.5 Specification Selection for Fasteners HUAWEI MG323 GSM M2M Module Mechanical SpecificationsIssue 06 Hardware Guide7 Appendix A Circuits of Typical Interfaces Issue 06RESET HUAWEI MG323 GSM M2M ModuleExpansion 8 Appendix B Acronyms and AbbreviationsAcronym or Abbreviation PBCCH Acronym or AbbreviationExpansion