1102625
Supplier number:
The Sierra Wireless MC7354 PCI Express Mini Card is a compact, lightweight, wireless LTE-, UTMS- and CDMA-based modem.
The MC7354 provides LTE, DC-HSPA+, HSPA+, HSDPA, HSUPA, WCDMA, GSM, GPRS, EDGE, CDMA and GNSS connectivity for notebooks, ultrabooks and tablet computers over several radio frequency bands. The device also supports 2G/3G roaming.
To develop applications and to test the mPCIe module separately the article 10069 Techship MiniPCIe Developer Kit incl. Technical support could be very helpful.
This datasheet shows an comparison overview of the MC-series cellular modules from Sierra Wireless.
This document provides information for developers planning to migrate from AirPrime MC73xx modules to AirPrime WP76xx accessory boards. Included is a features comparison, plus summaries of RF, interface, and mechanical differences between MC73xx modules and WP76xx Accessory Boards.
This document contains the Linux SDK application guide.
This guide describes the process of acquiring regulatory and operator required certificates in North America
Antenna Basics Guide for Sierra Wireless AirPrime Products IoT Applications
Mobile devices using 3G and LTE are equipped with a second receive antenna for improved performance.
This second antenna is required for receive diversity and MIMO.
These concepts, with their associated benefits, requirements and test possibilities, are described in this Application Note in a Q&A format.
This manual describes the Sierra Wireless Image Switching M2M Developers Guide.
This manual describes the Standard AT commands for User Equipment according to the 3GPP TS 27.007 standard
(version 15.4.0 Release 15)
For manual on proprietary model specific extended AT commands please refer to download section of product page.
This document describes services and protocols available over the USB connection, as well as describes the physical USB interface to help developers design host drivers for the AirPrime MC73xx series of embedded modules.
The AirPrime MC7354 PCI Express Mini Card is a compact, lightweight, wireless LTE-, UMTS-, and CDMA-based modem.
It provides LTE, DC-HSPA+, HSPA+, HSDPA, HSUPA, WCDMA, GSM, GPRS, EDGE, CDMA, and GNSS connectivity for networking, and M2M applications over several radio frequency bands and supports 2G / 3G roaming.
This document enumerates and summarizes the differences between the AirPrime MC5728v, MC77xx (with variants MC7700, MC7710 and MC7750) and MC870x (with variants MC8704 and MC8705) with the AirPrime MC73xx (with variants MC7304, MC7330, MC7350 and MC7354) and aims to provide guidance with migrating applications from using the MC5728v, MC77xx and MC870x to using the MC73xx.
GPS receivers of Sierra Wireless AirPrime modules can be connected to a passive antenna (which should be physically located very close to the unit) or a remote active antenna containing an LNA, which will both improve SNR and compensate for any cable/insertion losses.
This application note describes the use of the integrated GPS active antenna powering function when available, and how to design an external powering circuit where required.
This application note details how to setup a Rhode & Schwartz CMW500 platform in order to test the Sierra Wireless MC7304 throughput capabilities within the supported RF bands and MIMO capabilities (this application note is also applicable to all other variants of the MC73xx).
The following is also discussed:
Basic IP throughput description.
Explanation of the test results and its useful application for both TCP and UDP.
Overview and introduction to the “iPerf” tool.
Throughput results are achievable with the MC7304.
The document focusses on IPV4 configuration, however this can be extended to IPV6 with proper overhead computation (see “6.2.5 MTU and Protocol Overhead: Maximum Segment Size (MSS)” for details).
This document provides full description of AT commands for Sierra Wireless AirPrime wireless modules and AirLink Programmable Gateways.
Please refer to the specific Sierra Wireless module AT Command Reference document for list of supported AT commands.
This document describes supported standard and proprietary AT
commands available for Sierra Wireless AirPrime ® Mini Card (MC)
and Embedded Module (EM) products, and provides details where
commands vary from the standards.
This archive contains the STP drawing for the Sierra Wireless modules MC73xx
Extended AT Command Reference for AirPrime MC/SL-Series (UMTS/LTE) Rev.8
This archive contains the Sierra Wireless EM/MC73 series certificates archive
MC7354 IC, NCC, FCC
MC7304 CE
EM7305 FCC, CE
EM7355 IC, NCC
Sierra Wireless MC7354 MTBF Report of the reliability of the module.
Microsoft Windows desktop driver installer application for Sierra Wireless AirPrime EM/MC series.
This zip archive contains the Sierra Wireless Linux QMI SDK files:
Linux QMI SDK Full Version
Linux QMI SDK Lite Version
Linux QMI SDK Customer Release Note
Sierra Linux QMI drivers
Linux QMI SDK Application Developers Guide
Linux QMI Drivers - Customer Release Notes
This ZIP archive contains the Sierra Wireless Linux QMI drivers with manual and release notes.
In the Application Developers Guide you find instructions on how to install the drivers.
Linux QMI GobiNet and GobiSerial Drivers - Customer Release Notes
Linux QMI SDK Application Developers Guide
Sierra Linux QMI drivers
This archive contains the Sierra Wireless Android RIL library with related manuals and release notes.
Connection manager to connect AirPrime EM/MC Series modules to your PC running Windows. Please install USB drivers as mentioned in the related items.
This archive contains the Windows CE 6 - Compact 7 SDK Software V.2.15, release notes and integration guide.
This executable file install the Windows drivers for Sierra Wireless EM/MC Series cellular modules
This file contains the Windows driver for Sierra Wireless modules.
This executable file install the Windows drivers for Sierra Wireless EM/MC Series Modules
This archive contains the drivers for the Sierra Wireless modules MC73X4 series.
This is a watcher for Sierra WIreless.
It is generic and works for both dip and qmi.
Gobi Api Header for Sierra Wireless.
This package contains the Sierra Wireless drivers installation file needed to run the Sierra Wireless modules.
This archive contains the Sierra Wireless EM/MC73 Series GPS 2019 Week Roll-over NV Memory Firmware Update Patch as well as notice document.
These documents describe the Sierra Wireless MC73xx-SWI9X15C 05 series firmwares change notes
Firmware updater archive for Sierra Wireless MC7354 module (Linux / FW update files only)
The following carrier specific firmwares are available, use Generic version for other network carriers.
ATT SWI9X15C_05.05.58.00 005.026_000 Carrier approved
Bell SWI9X15C_05.05.58.00 005.024_000 PTCRB approved
Generic SWI9X15C_05.05.58.00 005.025_002 PTCRB approved
Rogers SWI9X15C_05.05.58.00 005.022_000 PTCRB approved
Sprint SWI9X15C_05.05.63.01 005.037_000 Carrier approved
Telus SWI9X15C_05.05.58.00 005.023_000 PTCRB approved
Verizon SWI9X15C_05.05.58.05 005.032_000 Carrier approved
Firmware updater archive for Sierra Wireless MC7354 module (for Windows systems)
The following carrier specific firmwares are available, use Generic version for other network carriers.
ATT SWI9X15C_05.05.58.00 005.026_000 Carrier approved
Bell SWI9X15C_05.05.58.00 005.024_000 PTCRB approved
Generic SWI9X15C_05.05.58.00 005.025_002 PTCRB approved
Rogers SWI9X15C_05.05.58.00 005.022_000 PTCRB approved
Sprint SWI9X15C_05.05.63.01 005.037_000 Carrier approved
Telus SWI9X15C_05.05.58.00 005.023_000 PTCRB approved
Verizon SWI9X15C_05.05.58.05 005.032_000 Carrier approved
How-to change the cellular modulesUSB composition mode to Mobile Broadband Interface Model (MBIM) used by Windows 8 and 10 systems for controlling and establishing data connectivity through the built-in connection manager in Windows?
This is done by sending a set of AT commands to the cellular modules Modem or AT serial interface found in Windows Device Manager. Please see list below for associated AT commands.
(For additional details, refer to the product specific software, ports, and AT commands guides found on the Techship product web pages under technical documentation tab).
After the AT commands have been received by the module and has restarted, the USB interface endpoint composition should have changed to include MBIM interface as well.
You can find the correct Serial COM port number by checking Windows Device Manager, under the Modems drop down -> (right click and see properties for selected COM port info) or under the Ports (COM & LPT) drop down.
Vendor specific commands to use:
Sierra Wireless EM74x0, MC74x0 series module:
AT!ENTERCND=”A710”
AT!USBCOMP=1,1,100D
AT!RESET
(See test command AT!USBCOMP=? for full usage description)
Sierra Wireless EM75xx, EM74x1, MC74x1 series module:
AT!ENTERCND=”A710”
AT!USBCOMP=1,3,100D
AT!RESET
(See test command AT!USBCOMP=? for full usage description)
Sierra Wireless EM73xx, MC73xx series module:
AT!ENTERCND=”A710”
AT!UDUSBCOMP=8
AT!RESET
Simcom SIM7100, SIM7500 and SIM7600 series modules:
AT+CUSBPIDSWITCH=9003,1,1
AT+CRESET
ZTE Welink ME3630 series:
AT+ZSWITCH=8
AT+ZRST
Telit LE910C1 and LE910C4 series:
AT#USBCFG=2
AT#REBOOT
Telit LM940 and LM940A11:
AT#USBCFG=2
AT#REBOOT
Telit LM960 and LM960A18:
AT#USBCFG=2
AT#REBOOT
Telit LE910 V2 series:
AT#USBCFG=3
AT#REBOOT
On Huawei and Telit LN94x series modules the USB mode changing is done automatically by the modules Windows drivers based on current Windows version.
Please be aware that some USB mode configurations do not include any serial interfaces, making it impossible to revert the changes using AT commands.
How to step by step set up a data connection over QMI interface using qmicli and in-kernel driver qmi_wwan in Linux?
Several cellular modules based on Qualcomm chipsets implements the Qualcomm Qualcomm MSM (QMI) Interface.
There is a open source Linux in-kernel driver supporting this interface and it is called qmi_wwan. This driver can be used together with ModemManager and NetworkManager to automate connection establishment and as a connection manager.
The library libqmi which ModemManager uses can also be used to communicate in a more direct way with the cellular devices over the QMI interface and to step by step do necessary configurations and trigger the data connection over the cellular network.
A selection of cellular modules can be supported:
Using RAW IP kernel configuration:
Sierra Wireless MC74 series, EM74 series, EM75** series
Telit LM940, LM960
Telit LN94x series (requires USB mode switch)
Simcom SIM7500 series, SIM7600 series, SIM7600 -H series
(can be supported in qmi_wwan driver from kernel 4.18 or by applying the following one line qmi_wwan source code patch on previous kernel builds: qmi_wwan: apply SET_DTR quirk to the SIMCOM shared device ID)
Using 802.3 IP framing kernel configuration:
Simcom SIM7100 series
Sierra Wireless MC73**/EM73** series
ModemManager combined with NetworkManager will detect the cellular modules automatically in most cases, please refer to their respective documentations on how to establish a data connection using them.
Example on how to set up the data connection step by step manually with libqmi:
First install the libqmi Linux library e.g. by using your system package manager like apt or preferably latest version from source on the Freedesktop pages for libqmi project: https://www.freedesktop.org/wiki/Software/libqmi/
Verify that you have the Linux in-kernel qmi_wwan driver installed and attached for the cellular modules QMI interface over USB:
lsusb -t
Can look e.g. like this:
...
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
...
If the driver is not correctly loaded, please verify that the module is set to expose the correct USB endpoints configuration toward the host system and that you have followed the provided guides from the cellular module vendors, regarding how to implement the module in Linux.
Libqmi expose a command line interface that can be used to communication with the module over QMI interface.
The qmicli help will output information about all commands available:
qmicli --help-all
The cellular modules QMI control interface are usually named cdc-wdm* e.g.:
qmicli --device=/dev/cdc-wdm0
In order to allow parallel commands to be execute on the module over QMI interface, it is recommended to use the libqmi proxy function. This can be done by including the attribute -p or --device-open-proxy in every qmicli command.
If a SIM pin is required for the SIM card, use command bellow:
qmicli --device=/dev/cdc-wdm0 -p --dms-uim-verify-pin=PIN,1234
The name of the related network interface to QMI control channel can be acquired with the command:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --get-wwan-iface
The most recent Qualcomm based cellular modules only expose QMI interfaces that can support Raw-IP mode. Sierra Wireless EM/MC74 and EM75 series modules, Telit LM940 and LN940 series for example require this.
Check what IP-mode the host system is configured for:
qmicli --device=/dev/cdc-wdm0 --get-expected-data-format
Check what IP-mode the cellular module require:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wda-get-data-format
to change qmi_wwan driver to use Raw-IP.
Disable the network interfaces exposed by the cellular module:
ip link set dev wwan0 down
Trigger the Raw-IP support:
echo Y > /sys/class/net/wwan0/qmi/raw_ip
Enable the network interfaces again:
ip link set dev wwan0 up
Now the data connection in the cellular module can be activated e.g. with a IPv4 type configuration on the specified APN:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wds-start-network="ip-type=4,apn=data.tre.se" --client-no-release-cid
Once "Network started" is displayed, you can send a DHCP request on the network interface.
Please note that not all DHCP clients in Linux can support Raw-IP format, udhcpc however support this for IPv4 over Raw-IP.
udhcpc -q -f -n -i wwan0
Disconnect the data bearer and data connection over QMI by command bellow and providing the network handle and CID returned at connection activation:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --wds-stop-network=NETWORK_HANDLE --client-cid=CID
Additional useful commands:
Request module manufacturer:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-manufacturer
Get module model:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-model
Get firmware version:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-revision
Get module IDs (IMEI etc.):
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --dms-get-ids
Get SIM card status:
qmicli --device=/dev/cdc-wdm0 --device-open-proxy --uim-get-card-status
Recent cellular modules like Sierra Wireless EM7565 require at least libqmi V1.20. Check version with command:
qmicli --version
If the connection was successfully set up established, you now have data connectivity. A ping to a remote server using the cellular network interface can for example prove this:
ping -I wwan0 8.8.8.8
The ifconfig Linux tool can show the current details for the network interface:
ifconfig wwan0
libqmi is well integrated and supported in ModemManager tool for Linux. ModemManager again is well integrated and supported when using NetworkManager tool in Linux. Please note however that these two tools expect the cellular module interfaces to only be used by them so if you manually want to use the libqmi library or AT commands interfaces, please turn off/disable ModemManager and NetworkManager first.
The libqmi is a generic open source library for Linux systems and QMI protocol from Qualcomm, therefor there are commands only working on selected devices and not necessarily supported on the device you use, resulting in an error message.
How to collect initial diagnostics data for Sierra Wireless EM/MC73 series cellular modules when requesting technical support?
In order to troubleshoot and solve a technical problem, we ask you to please provide information about your system and logs from the related module when creating a technical support ticket.
Please provide a problem description of what exact problem is and in what precise situations it is present.
Describe the host system:
-Hardware (system board, peripherals...)
-Operating system and detailed versions (E.g. Windows, Linux dist, release, kernel...)
-Drivers and driver versions
Identify the precise details of cellular module found on label:
-Model
-SKU/BOM or P/N code
(For RMA returns the IMEI number is required also)
If you are running on a Linux based system, please capture the terminal logs bellow:
uname -a
lsusb
lsusb -t
ifconfig -a
ls -l /dev/serial/by-id
ls -l /sys/bus/usb-serial/devices
dmesg
The logs from module firmware can be acquired by accessing one of the USB enumerated serial (COM) interfaces accepting AT commands. (In Windows this is generally modem devices or AT commands serial interfaces). Send the following AT commands to module and capture the text output and include them when creating the the technical support ticket.
Sierra Wireless :
ATI
AT!ENTERCND="A710"
AT!PRIID?
AT!HWID?
AT+CPIN?
AT+CFUN?
AT+CREG?
AT+CGREG?
AT+CEREG?
AT+COPS?
AT!GSTATUS?
AT+CGDCONT?
AT$QCPDPP?
AT+CGCONTRDP
AT+CGPADDR
AT!GOBIIMPREF?
AT!IMAGE?
AT!CUSTOM?
AT!CUSTOM=?
AT!BAND?
AT!PCINFO?
AT!PCTEMP?
AT!PCVOLT?
AT!UDUSBCOMP?
AT!UDUSBCOMP=?
AT!ERR
AT!BCFWUPDATESTATUS
AT!SELRAT?
AT!SELRAT=?
The support ticket can be created after login at: https://techship.com/technical_support/
How can I enable DC voltage output for active GPS/GNSS antennas on modules that support this feature?
The 3 volt DC Low Noise Amplifier voltage supply from the cellular module can be enabled according to AT commands bellow:
For Sierra Wireless EM/MC74 series:
AT!ENTERCND="A710"
AT+WANT=1
For Sierra Wireless MC73 series:
AT!ENTERCND="A710"
AT+WANTGNSSPWR=1
For Simcom SIM7100, SIM7500, SIM7600 and SIM7600 -H series:
AT+CVAUXV=3050
AT+CVAUXS=1
What Linux kernel modules and configs are commonly used for communicating with cellular modules over their USB interface?
Most cellular modules can be supported in Linux by using som of the in-kernel drivers. The physical data interface to the host Linux system is usually done over USB which enumerates a set of different endpoints/interfaces. A set of serial interfaces for Modem/PPP, AT commands, NMEA location data and chipset debug information are almost always available in all configurations.
In addition some type of network endpoint/interface are also available and exposed. This can vary between manufacturers and chipset vendors and can also commonly be configurable by using USB configuration mode switching or through vendor specific AT commands.
Recommended kernel configurations to enable are listed bellow. Many cellular modules base their Linux support on these modules and drivers. Once included in the kernel build, the USB interfaces will be detected and bound correctly out-of-the-box or after applying source code patches to the driver modules.
Configs for USB serial drivers:
CONFIG_USB_SERIAL
CONFIG_USB_SERIAL_GENERIC
CONFIG_USB_SERIAL_WWAN
CONFIG_USB_SERIAL_OPTION
CONFIG_USB_SERIAL_QUALCOMM
CONFIG_USB_ACM
Configs for Modem/PPP support:
CONFIG_PPP
CONFIG_PPP_BSDCOMP
CONFIG_PPP_DEFLATE
CONFIG_PPP_FILTER
CONFIG_PPP_MPPE
CONFIG_PPP_MULTILINK
CONFIG_PPPOE
CONFIG_PPP_ASYNC
CONFIG_PPP_SYNC_TTY
Configs for USB network drivers:
CONFIG_USB_USBNET
CONFIG_USB_NET_QMI_WWAN
CONFIG_USB_NET_CDCETHER
CONFIG_USB_NET_RNDIS_HOST
CONFIG_USB_NET_CDC_NCM
CONFIG_USB_NET_HUAWEI_CDC_NCM
CONFIG_USB_NET_CDC_MBIM
Please relate to the Techship product specific web pages for vendor specific Linux integration guides.
Below is a selection of kernel commits relating to cellular module support in Linux kernels:
qmi_wwan: Add support for Fibocom NL678 series
qmi_wwan: Added support for Telit LN940 series
qmi_wwan: Added support for Fibocom NL668 series
USB: serial: option: add support for GosunCn ME3630 RNDIS mode
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
USB: serial: option: add Simcom SIM7500/SIM7600 (MBIM mode)
USB: serial: option: add Fibocom NL678 series
USB: serial: option: add Telit LN940 series
USB: serial: option: add Fibocom NL668 series
USB: serial: option: add GosunCn ZTE WeLink ME3630
qmi_wwan: apply SET_DTR quirk to the SIMCOM shared device ID
If you use any of the listed cellular modules, drivers and specified USB modes in the commits above, ensure that your kernel version already include the patch or apply it to your build.
How can we establish data connection for cellular modules in Windows 8 and Windows 10 systems?
Microsoft Windows desktop versions starting from Windows 8 and newer have built in data connection manager for WWAN, Wifi etc. that can be used to configure, control and establish the data connection of cellular module that support MBIM interface, which most cellular modules do.
The connection managers settings and controls can be found and accessed on Windows desktop start menu through the network icon (see picture).
The Cellular tab can be found in Windows system settings and if needed the connection APN details can be manually entered through "Advanced options".
How to set up a simple data connection over Qualcomm QMI interface using libqmi and driver qmi_wwan in Linux?
Several cellular modules based on Qualcomm chipsets implements the Qualcomm MSM QMI RMNET Interface.
There is a open source Linux in-kernel driver supporting this interface called qmi_wwan. The helper library libqmi can be used to communicate with the cellular devices over the interface and do cellular module configurations to control and trigger the data connection over the cellular network.
Install the libqmi Linux library using e.g. your OS package manager like apt etc.
(Check out the official libqmi page here: https://www.freedesktop.org/wiki/Software/libqmi/)
Please be aware that libqmi is a 3rd party software not distributed by the chipset or module vendors. So full compatibility on all available commands should not be expected.
There are Qualcomm chipset standard QMI commands and in addition vendors specific custom QMI commands not supported by all manufacturers, but still available in libqmi. There are also new QMI commands not supported in older chipsets and vice versa, old QMI commands no longer supported in new chipset series.
Verify that you have the Linux in-kernel qmi_wwan driver installed and loaded for the cellular modules QMI interface endpoint over USB:
lsusb -t
Can look like this:
...
|__ Port 1: Dev 3, If 2, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
...
If the driver is not loaded correctly, please verify that the cellular module is set to expose QMI RMNET network interface endpoint in its configuration. How to do so can often be found in AT commands guides, Linux implementation guides and similar from the cellular module vendors.
Libqmi library include a command line tool qmicli that can be used in a more convenient way communicate directly with the module over QMI interface for testing, scripting and troubleshooting.
The qmicli help will output information about all commands available:
qmicli --help-all
The qmi_wwan network control interfaces for modules are usually named like cdc-wdm# under /dev/ path.
Use the attribute --device or -d to specify it for qmicli in your command execution:
qmicli --device=/dev/cdc-wdm0
qmicli -d /dev/cdc-wdm0
In order to ease usage of the QMI interface and handle parallell command requests, libqmi include a proxy function to handle it correctly on the QMI interface, To use it, make sure to have the the attribute present in the qmicli command:
-p
--device-open-proxy
Example commands on how to communicate
Request module manufacturer:
qmicli -p -d /dev/cdc-wdm0 --dms-get-manufacturer
Get module model:
qmicli -p -d /dev/cdc-wdm0 --dms-get-model
Get firmware version:
qmicli -p -d /dev/cdc-wdm0 --dms-get-revision
Get module IDs (IMEI etc.):
qmicli -p -d /dev/cdc-wdm0 --dms-get-ids
Get SIM card status:
qmicli -p -d /dev/cdc-wdm0 --uim-get-card-status
The script qmi-network can be used to establish a simple data connection, it will automatically try to verify the IP framing type match them correctly between qmi_wwan driver and module (Raw-IP vs. 802.3 IP framing).
Create a config file containing your network operator APN details and if needed, the username and password.
Save it e.g. in the default location /etc/qmi-network.conf
The parameter --profile=[PATH] can be used to define the path to config when executing qmi-network.
Example config file content: APN details and enabling of proxy usage.
Add the username and password lines if it is needed for your APN:
APN=my-network-operators-apn
APN_USER=my-apn-username
APN_PASS=my-apn-password
PROXY=yes
Once the APN information is saved, you can start the network connection with the command:
qmi-network /dev/cdc-wdm0 start
The name of the related network interface in the Linux system can be acquired with the command:
qmicli -p -d /dev/cdc-wdm0 --get-wwan-iface
Once you see "Network started successfully" message, you can send a DHCP request on the network interface.
Please note that not all DHCP clients in Linux can handle Raw-IP format but udhcpc support it.
udhcpc -q -f -i wwan0
The IP information from the cellular network can also be acquired and set manually to the network interface by the user or scripting, the correct address details can be acquired from the cellular module over QMI with command:
qmicli -p -d /dev/cdc-wdm0 --wds-get-current-settings
If the connection was successfully set up and established, you now have a data connection. Ping request to a remote server using the cellular network interface can prove this:
ping -I wwan0 8.8.8.8
The ifconfig Linux tool can show the current details for the network interface:
ifconfig wwan0
To bring down and stop the cellular network connection, please use the stop command bellow:
qmi-network /dev/cdc-wdm0 stop
The ModemManager tool for Linux is based on libqmi. NetworkManager and ModemManager . Please note however that these two tools expect the cellular module interfaces to only be used by them so if you manually want to use the libqmi library or AT commands interfaces, please turn off/disable ModemManager and NetworkManager first.
The libqmi is a generic open source library for Linux systems and QMI protocol from Qualcomm, therefor there are several commands only working on selected devices and not necessarily on supported in the specific device you use, resulting in an error message.
How can we capture DM serial port logs for Sierra Wireless EM/MC series cellular modules in Linux?
In the Sierra Wireless QMI SDK downloadable archive there is a a DM log tool in the tools folder.
Run the dmcapture.sh script with desired filter, and the ttyUSB0 (DM port) device selected.
E.g. like this:
sudo ./dmcapture.sh -l -d /dev/ttyUSB0 -o testlog -f ./filters/v11026_Generic_GSM_WCDMA_LTE_IP.sqf
This will create a log file that can be sent for analyze and debug to Sierra Wireless.
I want to use a specific network technique. Can I specify that with a Sierra Wireless module?
The AT command AT!SELRAT lets you specify what technique to use.
The parameters are:
00, Automatic
01, UMTS 3G Only
02, GSM 2G Only
03, Automatic
04, Automatic
05, GSM and UMTS Only
06, LTE Only
07, GSM, UMTS, LTE
11, UMTS and LTE Only
12, GSM and LTE Only