Huawei ME909u-521 manual Overview, Conventions and Definitions

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HUAWEI ME909u-521 LTE LGA Module

 

Application Guide

Overview

1 Overview

This document is intended to provide references for customers to choose appropriate command sequences to start using the ME909u-521 module in a faster manner. This document also contains examples and relevant description.

This document will be updated based on customers' requirements.

1.1 Conventions and Definitions

1.1.1 Conventions

Convention

Description

 

 

<…>

Value range of AT command parameters

 

 

XXXX

Personal Identification Number (PIN), Personal Unlock Key

 

(PUK), or password

 

 

1.1.2 Definitions

Term

Definition

 

 

Connected

Indicates that a link has been set up between two

 

modules or a module and a terminal.

 

 

Registered

Indicates that the module is registered with a

 

LTE/UMTS/GSM network.

 

 

Module

HUAWEI LTE module

 

 

Issue 01 (2013-07-05)

Huawei Proprietary and Confidential

7

Copyright © Huawei Technologies Co., Ltd.

 

 

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Contents Application Guide Issue DateNo Warranty 2013-07-05 Creation About This DocumentRevision History Date Chapter Description VersionContents SMS Application Scenarios Sleeping and Waking Up Application Scenarios Module Powering Off and Resetting Application ScenariosDefinitions OverviewConventions and Definitions ConventionsChapter Description Organization of This DocumentAT Command Processing Mechanism Basic AT Command Processing PrinciplesPorts AT command Process AT command  AT+CLCK ExampleAT+CREG? +CME Error SIM failureAT Command Timeout Duration ExampleHuawei ME909u-521 LTE LGA Module Application Guide Overview Reference Process TroubleshootingInitialization Application Scenarios Startup Indication SysstartQuerying Basic Information Network Service Operations +CME Error SIM failure No SIM card is detected. Insert Scenario Possible Error Information SolutionAT+COPS? Searching and Registering Network Network Searching and Registration Application Scenarios1Automatic search for networks Start HCSQGSM,73AT+CREG? +CME Error SIM AT+COPS? +CME Error SIMFailure SIM card Ndisstat 1,,,IPV4 ECM Application ScenariosECM Dialing ATNDISDUP=?Ndisstatqry 1,,,IPV4 Querying the Dial-up Connection StateATNDISSTATQRY? Ndisstatqry 0,0,,IPV4ATNDISDUP=1,0 Disconnecting the Dial-up ConnectionNDISSTAT0,,,IPV4 Overview SMS Application Scenarios1Example of data encoded in PDU format of submitted type Initializing SMS Set the short message format to PDU AT+CMGF=04SMS initialization process part Query the Smsc address +CSCA 13800688509,129 +CMS Error SIMSending Short Message Set the short message format to PDU+CMGS 0000FF04F4F29C0E\x0A0B813109731147F40000FF0 4F4F29C0E\x1A +CMGS 6Sending short messages in PDU format EFF00 Message State PDU ModeReading Short Messages AT+CMGL=07Reading short messages AT+CMGL=4 Deleting Short MessagesEF3B282C2F83F2EFFA0F AT+CMGD=1 8Deleting short message AT+CPBS=SM Phonebook Application ScenariosMemory Operations AT+CPBS=?Commands Enter the correct PIN Required +CME Error SIM PINPhonebook initialization has +CPBR Reading Phonebook EntriesEnter the correct PUK PUK required CommandDescriptionDelete the entry in index 1 in the phonebook Writing/Deleting Phonebook Entries Reference ProcessAT+CPBR=? AT+CPBW=13Writing phonebook entries AT+CPBF=? Searching for Phonebook EntriesAT+CPBF=findtext +CBPF index1,number,type,text +CBPF index2,number,type,text+CNUM alpha1,number1,type1 +CNUM alpha2,number2,type2 Querying User NumberAT+CNUM Query the SIM number+CSCS IRA AT+CPBR=1 Setting the TEs Character SetsAT+CSCS=? AT+CSCS?0123456789,129,004800550041 005700450049 Request the PIN state SIM Operation Application ScenariosPIN Operations AT+CLCK=SC,2Requested Check whether the password isRequest the SIM card state PINCrsm Command AT+CRSM=242 Binary Sleeping and Waking Up Application Scenarios Hardware Interfaces Interface Pin name Direction Functional Description Diagram1WAKE# PIN output sequence Sequence DiagramPrinciple Software Interfaces5Currency state when the module is in sleep mode USB and Sleep 6Sleep procedureModule 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 It wakes up When the host is awake, unsolicitedSystem with Other Connection Methods Mode, and reported to the host whenATCURC=2,0x8000000000,0x8000000000 Pre-configurationThermal Protection Application Scenarios Thermal Protection ProcessIssue 01 Huawei Proprietary and Confidential AT+CFUN=1,1 Module Powering Off and Resetting Application ScenariosPower Off ME Restarting the METroubleshooting Acronym or Abbreviation Expansion AppendixRelative Documents Acronyms and AbbreviationsAbbreviation 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.