Huawei ME909u-521 manual Hardware Interfaces

Page 52

HUAWEI ME909u-521 LTE LGA Module

 

Application Guide

Sleeping and Waking Up Application Scenarios

8.1 Hardware Interfaces

The module communicates with the host using mainly USB or UART. For details about pins related to power management, see ‎Table 8-1 .

For corresponding interface numbers and reference design for the pins, see

Hardware Guide for each product.

Table 8-1Power management related pins

 

Interface

 

 

Pin name

 

 

Direction

 

 

Functional Description

 

 

Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When a wake-up source arrives, this

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pin output a low-level-voltage pulse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lasting for 1s during which if other

 

 

 

 

 

 

PCIE

 

 

WAKE#

 

 

Output

 

 

wake-up sources arrive, the module

 

 

Figure‎

8-1

 

 

 

 

 

 

 

 

 

 

 

will ignore the later wake-up requests.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In other words, the module will not

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output a second pulse during this 1s.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When a wake-up source arrives, this

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pin output a high-level-voltage pulse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lasting for 1s during which if other

 

 

 

 

 

 

LGA

 

 

WAKEUP_OUT

 

 

Output

 

 

wake-up sources arrive, the module

 

 

Figure‎

8-2

 

 

 

 

 

 

 

 

 

 

 

will ignore the later wake-up requests.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

In other words, the module will not

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output a second pulse during this 1s.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When the pin carries a high-level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

voltage, the states of the module are

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The module will be prohibited to enter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sleep mode if the module is awake.

 

 

 

 

 

 

LGA

 

 

WAKEUP_IN

 

 

Input

 

 

The module will be woken up if the

 

 

Figure‎

8-3

 

 

 

 

 

 

 

 

module is in sleep mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

When the pin carries a low-level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

voltage, the module is allowed to enter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sleep mode. (By default, the pin is set

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to INPUT/PD, which is, the software

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

detects a low-level voltage on the pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

when the pin is not connected.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indicate the state of the module.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When the pin carries a high-level

 

 

 

 

 

 

LGA

 

 

SLEEP_STATUS

 

 

Output

 

 

voltage, the module is in working

 

 

Figure‎

8-4

 

 

 

 

 

 

 

 

mode. When the pin carries a low-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

level voltage, the module is in sleep

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

The PCIE interface does not support UART.

Issue 01 (2013-07-05)

Huawei Proprietary and Confidential

52

Copyright © Huawei Technologies Co., Ltd.

 

 

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Contents Issue Date Application GuideNo Warranty About This Document Revision HistoryDate Chapter Description Version 2013-07-05 CreationContents SMS Application Scenarios Module Powering Off and Resetting Application Scenarios Sleeping and Waking Up Application ScenariosOverview Conventions and DefinitionsConventions DefinitionsOrganization of This Document Chapter DescriptionAT Command Processing Mechanism Basic AT Command Processing PrinciplesPorts AT command Process AT command Example  AT+CLCK+CME Error SIM failure AT Command Timeout DurationExample AT+CREG?Huawei ME909u-521 LTE LGA Module Application Guide Overview Troubleshooting Initialization Application ScenariosStartup Indication Sysstart 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 ECM Application Scenarios ECM DialingATNDISDUP=? Ndisstat 1,,,IPV4Querying the Dial-up Connection State ATNDISSTATQRY?Ndisstatqry 0,0,,IPV4 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 +CMS Error SIM Sending Short MessageSet the short message format to PDU Query the Smsc address +CSCA 13800688509,129+CMGS 0000FF04F4F29C0E\x0A0B813109731147F40000FF0 4F4F29C0E\x1A +CMGS 6Sending short messages in PDU format Message State PDU Mode Reading Short MessagesAT+CMGL=0 EFF007Reading short messages AT+CMGL=4 Deleting Short MessagesEF3B282C2F83F2EFFA0F AT+CMGD=1 8Deleting short message Phonebook Application Scenarios Memory OperationsAT+CPBS=? AT+CPBS=SMCommands Enter the correct PIN Required +CME Error SIM PINPhonebook initialization has Reading Phonebook Entries +CPBRCommandDescription Enter the correct PUK PUK requiredWriting/Deleting Phonebook Entries Reference Process AT+CPBR=?AT+CPBW=1 Delete the entry in index 1 in the phonebook3Writing phonebook entries Searching for Phonebook Entries AT+CPBF=findtext+CBPF index1,number,type,text +CBPF index2,number,type,text AT+CPBF=?Querying User Number AT+CNUMQuery the SIM number +CNUM alpha1,number1,type1 +CNUM alpha2,number2,type2Setting the TEs Character Sets AT+CSCS=?AT+CSCS? +CSCS IRA AT+CPBR=10123456789,129,004800550041 005700450049 SIM Operation Application Scenarios PIN OperationsAT+CLCK=SC,2 Request the PIN stateCheck whether the password is Request the SIM card statePIN 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 When the host is awake, unsolicited System with Other Connection MethodsMode, and reported to the host when It wakes upPre-configuration Thermal Protection Application ScenariosThermal Protection Process ATCURC=2,0x8000000000,0x8000000000Issue 01 Huawei Proprietary and Confidential Module Powering Off and Resetting Application Scenarios Power Off MERestarting the ME AT+CFUN=1,1Troubleshooting Appendix Relative DocumentsAcronyms and Abbreviations 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.
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