Huawei ME909u-521 manual AT command Process AT command

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HUAWEI ME909u-521 LTE LGA Module

 

Application Guide

Overview

Figure 1-1AT command processing sequence diagram

TE

UE

AT command 1

Process AT command 1

AT command 2

Ignore AT

command 2

Return results of AT command 1

AT command 3

Process AT command 3

Return results of AT command 3

Issue 01 (2013-07-05)

Huawei Proprietary and Confidential

10

Copyright © Huawei Technologies Co., Ltd.

 

 

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Contents Issue Date Application GuideNo Warranty Date Chapter Description Version About This DocumentRevision History 2013-07-05 CreationContents SMS Application Scenarios Module Powering Off and Resetting Application Scenarios Sleeping and Waking Up Application ScenariosConventions OverviewConventions and Definitions DefinitionsOrganization of This Document Chapter DescriptionAT Command Processing Mechanism Basic AT Command Processing PrinciplesPorts AT command Process AT command Example  AT+CLCKExample +CME Error SIM failureAT Command Timeout Duration AT+CREG?Huawei ME909u-521 LTE LGA Module Application Guide Overview Startup Indication Sysstart TroubleshootingInitialization Application Scenarios Reference ProcessQuerying Basic Information Network Service Operations +CME Error SIM failure No SIM card is detected. Insert Scenario Possible Error Information SolutionAT+COPS? Network Searching and Registration Application Scenarios Searching and Registering NetworkHCSQGSM,73 1Automatic search for networks StartAT+CREG? +CME Error SIM AT+COPS? +CME Error SIMFailure SIM card ATNDISDUP=? ECM Application ScenariosECM Dialing Ndisstat 1,,,IPV4Ndisstatqry 0,0,,IPV4 Querying the Dial-up Connection StateATNDISSTATQRY? Ndisstatqry 1,,,IPV4ATNDISDUP=1,0 Disconnecting the Dial-up ConnectionNDISSTAT0,,,IPV4 SMS Application Scenarios Overview1Example of data encoded in PDU format of submitted type Initializing SMS AT+CMGF=0 Set the short message format to PDU4SMS initialization process part Set the short message format to PDU +CMS Error SIMSending Short Message Query the Smsc address +CSCA 13800688509,129+CMGS 0000FF04F4F29C0E\x0A0B813109731147F40000FF0 4F4F29C0E\x1A +CMGS 6Sending short messages in PDU format AT+CMGL=0 Message State PDU ModeReading Short Messages EFF007Reading short messages AT+CMGL=4 Deleting Short MessagesEF3B282C2F83F2EFFA0F AT+CMGD=1 8Deleting short message AT+CPBS=? Phonebook Application ScenariosMemory Operations AT+CPBS=SMCommands Enter the correct PIN Required +CME Error SIM PINPhonebook initialization has Reading Phonebook Entries +CPBRCommandDescription Enter the correct PUK PUK requiredAT+CPBW=1 Writing/Deleting Phonebook Entries Reference ProcessAT+CPBR=? Delete the entry in index 1 in the phonebook3Writing phonebook entries +CBPF index1,number,type,text +CBPF index2,number,type,text Searching for Phonebook EntriesAT+CPBF=findtext AT+CPBF=?Query the SIM number Querying User NumberAT+CNUM +CNUM alpha1,number1,type1 +CNUM alpha2,number2,type2AT+CSCS? Setting the TEs Character SetsAT+CSCS=? +CSCS IRA AT+CPBR=10123456789,129,004800550041 005700450049 AT+CLCK=SC,2 SIM Operation Application ScenariosPIN Operations Request the PIN statePIN Check whether the password isRequest the SIM card state RequestedCrsm Command AT+CRSM=242 Binary Sleeping and Waking Up Application Scenarios Interface Pin name Direction Functional Description Diagram Hardware InterfacesSequence Diagram 1WAKE# PIN output sequenceSoftware Interfaces Principle5Currency state when the module is in sleep mode 6Sleep procedure USB and SleepModule Wake-up Uart and SleepHost Woken up by Module HS Hub Application Scenarios System with USB Connection only Software ProcedureHardware Connection Advantages Application Scenarios System with USBATWAKEUPCFG=1,1,14 Mode, and reported to the host when When the host is awake, unsolicitedSystem with Other Connection Methods It wakes upThermal Protection Process Pre-configurationThermal Protection Application Scenarios ATCURC=2,0x8000000000,0x8000000000Issue 01 Huawei Proprietary and Confidential Restarting the ME Module Powering Off and Resetting Application ScenariosPower Off ME AT+CFUN=1,1Troubleshooting Acronyms and Abbreviations AppendixRelative Documents Acronym or Abbreviation ExpansionAbbreviation Full Name

ME909u-521 specifications

The Huawei ME909u-521 is a cutting-edge module designed to meet the increasing demand for mobile broadband connectivity in various industrial and commercial applications. This compact and robust device is primarily used for M2M (Machine-to-Machine) communication and IoT (Internet of Things) solutions. It supports a wide range of features and technologies that make it a versatile choice for businesses looking to enhance their operational efficiency through cellular connectivity.

One of the key features of the ME909u-521 is its support for multiple frequency bands. It is compatible with 4G LTE networks, ensuring high-speed data transmission and reduced latency. This capability allows for seamless communication in various environments, making it an ideal solution for applications such as smart cities, telematics, transportation, and remote monitoring.

In addition to LTE capabilities, the ME909u-521 also supports 3G and 2G networks, providing fallback options in areas where 4G coverage may be limited. This multi-network support guarantees reliable connectivity, which is crucial for mission-critical applications. The module is designed to maintain stable connections even in challenging conditions, such as in-motion environments or areas with fluctuating signal strengths.

The Huawei ME909u-521 features a compact form factor, making it easy to integrate into a wide range of devices and applications. Its small size reduces the overall footprint, which is particularly advantageous for space-constrained installations. Furthermore, the device is equipped with advanced power management features that help optimize energy consumption, extending the lifespan of connected devices.

For enhanced security, the ME909u-521 integrates robust encryption protocols to protect data transmission over mobile networks. Security is a top priority for M2M and IoT applications, and this module ensures secure communication by adhering to global standards and best practices.

Another notable characteristic is its extensive support for various interfaces, including UART and USB, facilitating seamless integration with different hardware systems. This flexibility allows developers to quickly implement and scale their solutions based on specific project requirements.

Overall, the Huawei ME909u-521 is a powerful connectivity module that combines high-speed communication, versatility, and reliability. With its state-of-the-art technologies, it is well-suited for a wide array of applications, making it a valuable asset for businesses looking to advance their digital transformation initiatives. Whether utilized in smart grids, remote monitoring, or intelligent transportation systems, the ME909u-521 stands out as a leading solution in the M2M and IoT landscape.