HUAWEI ME909u-521 LTE LGA Module

 

 

 

 

 

 

Application Guide

 

SIM Operation Application Scenarios

 

 

 

 

 

 

 

 

 

 

 

 

Scenario

 

 

Possible Error

 

 

Solution

 

 

 

 

 

 

 

 

 

 

 

Information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+CME ERROR:

 

 

Enter the correct PIN. The

 

 

 

 

 

 

 

original PIN is provided by

 

 

 

 

 

incorrect password

 

 

 

 

 

 

 

 

 

the operator.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Incorrect PINs have been

 

 

Enter the PIN.

 

 

 

 

entered three times and the

 

 

 

 

 

 

SIM card is blocked. Run

 

 

AT+CPIN="<pwd>"

 

 

 

 

AT+CPIN="<PUK>","<pwd>

 

 

 

 

 

+CME ERROR: SIM

 

 

" to enter the PUK to unblock

 

 

 

 

 

 

 

the SIM card. The PUK is

 

 

 

 

 

PUK required

 

 

 

 

 

 

 

 

 

provided by the operator and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cannot be changed by users.

 

 

 

 

 

 

 

 

If incorrect PUKs are entered

 

 

 

 

 

 

 

 

10 times, the SIM card will be

 

 

 

 

 

 

 

 

permanently blocked.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<oldpwd> must be the

 

 

 

 

 

 

 

 

current PIN. Like the PIN

 

 

Changes the PIN.

 

 

 

 

authentication, if incorrect

 

 

 

+CME ERROR:

 

 

PINs are entered three times,

 

 

AT+CPWD="SC","<oldpwd

 

 

 

 

 

 

incorrect password

 

 

the PUK will be required. If

 

 

>","<newpwd>"

 

 

 

 

 

 

 

 

 

incorrect PUKs are entered

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 times, the SIM card will be

 

 

 

 

 

 

 

 

permanently blocked.

 

 

 

 

 

 

 

 

 

 

7.2 CRSM Command

7.2.1Reference Process

 

 

Command

 

Description

 

 

 

 

 

 

 

 

 

AT+CRSM=176,12258,0,0,10

Read the file EFiccid with a transparent

 

 

 

 

 

structure. (12258 is 0X2FE2, the

 

 

 

 

 

 

EFiccid file's FID).

 

 

 

 

 

 

 

 

 

 

+CRSM: 144,0,"<record>"

After the command is processed

 

 

 

 

 

 

successfully, the EFiccid file's content

 

 

 

 

OK

 

(<record>) is returned.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AT+CRSM=178,28476,1,4,176,,"7F10"

Use an absolute path to read the first

 

 

 

 

 

 

entry from the EFsms file on the SIM

 

 

 

 

 

 

card's DFtelecom folder.

 

 

 

 

 

 

 

 

 

+CRSM: 144,0,"<record>"

<record> is the content of the first entry.

 

 

 

 

The length of <record> is 176 bytes.

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

AT+CRSM=192,12258

Get response of EFiccid.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Issue 01 (2013-07-05)

Huawei Proprietary and Confidential

48

 

Copyright © Huawei Technologies Co., Ltd.

 

 

 

 

 

 

Page 48
Image 48
Huawei ME909u-521 manual Crsm Command

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.