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Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

Article Number: 12147
Manufacturer: Telit
Supplier number: LM940ABW414T0W4000

The Telit LM940A11 miniPCIe form factor data-card delivers high speed data rates over 4G LTE Advanced technology with fallback to 3G HSPA+. It can offer a cellular connection for data throughput demanding end-products and applications such as remote routers and gateways, broadcasting solutions etc.

Telit LM940A11 module can support down link data throughput of up to 600 Mbps by taking advantage of LTE Carrier Aggregation, 2x2 MIMO antenna technology and 256 QAM signal modulation.

Since the LM940A11 miniPCie data card supports a wide range of various RF frequency bands and band combinations deployed worldwide it is great match for end-products needing data connectivity on a global target region with a single set of hardware configuration.

Key Benefits:
- MiniPCIe data card form factor for eased integration and flexibility.
- Takes advantage of LTE Advanced technology and meeting the requirements for LTE UE Category 11.
- Throughput of up to 600 Mbps in downlink and 75 Mbps in uplink.
- Full GNSS support - GPS, GLONASS, Galileo, Beidou.
- Increased connectivity performance with Carrier Aggregation 3CA, 2x2MIMO and 256 QAM.

Telit LM940A11 Hardware Revisions:
In hardware revision 2 a set of signals have changed pin location in the miniPCIe socket in order to match the design of the Telit LM960 module. Please refer to the Telit LM940 Hardware Guide for complete details about the pin location differences in miniPCIe socket between hardware revision 1 and 2.

Telit LM940A11 hardware revision 1 can be found here, 10637, Telit LM940A11, HW Rev. 1.

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UMTS Bands
B1 (2100)
B2 (1900)
B8 (900)
B4 (AWS)
B5 (850)
MIMO (Multiple-Input Multiple-Output)
Yes
LTE Bands
B1 (2100)
B2 (1900)
B3 (1800)
B4 (AWS)
B7 (2600)
B8 (900)
B12 (700ac)
B13 (700c)
B17 (700bc)
B20 (800DD)
B5 (850)
B25 (1900)
B38 (TDD 2600)
B40 (TDD 2300)
B26 (US 850 Ext)
B28 (700 APAC)
B29 (US 700de Lower)
B41 (TDD 2500)
B30 (2300 WCS)
B66 (AWS-3)
Manufacturer
Telit
LTE Region
Europe
North America
Asia
Australia
South America
China
Africa
Form Factor
mPCIe - full size
Technology
LTE - cat 11
Antenna Interface
IPEX MHF/U.FL
GPS
Yes
GNSS technology
GPS
GLONASS
BeiDou
Galileo
Max DL Speed
600 Mbps
Max UL Speed
75 Mbps
Chipset
Qualcomm
Operating Temperature Range
-40 °C – 85 °C
Driver Support
Windows 7
Windows Vista
Linux
Android
Windows
Windows 8
Windows CE
Windows 8.1
Windows 10
Interface
USB 2.0
USB 3.0
I2C
Voice Call Support
No
GNSS antenna support
Passive
Active 3.3VDC
Active
Active 3.05VDC
SIM interface
Through miniPCIe connector
Dual SIM interface
GPIO
Yes
Carrier Certification
AT&T
Verizon
Sprint
Extended Operating Temperature Range
-40 °C – 85 °C
Audio interface
Digital PCM signal input/output in socket
Certification
FCC
CE
RoHS
GCF
PTCRB
IC
REACH
CE RED
Size
51 x 30 x 2.7mm

Datasheet for the Telit LM940 module.

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Uploaded at
2017-07-12 18:26:40
Last updated
2019-09-25 14:48:23
Version
06.2019
Related products
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM940A11 LTE CAT-11, GPS, mPCIe

This document introduces the Telit LM940A11 module and presents possible and recommended hardware solutions for developing a product based on the LM940A11 module.

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Uploaded at
2017-07-13 13:54:12
Last updated
2020-03-11 13:39:39
Version
R14
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Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM940A11 LTE CAT-11, GPS, mPCIe

This document describe the AT commands supported by the Telit LM940 series cellular modules.

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Uploaded at
2017-07-13 13:56:48
Last updated
2020-03-11 13:34:29
Version
R5
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Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM940A11 LTE CAT-11, GPS, mPCIe

This document describes LM940 modules software and interface towards host system.

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Uploaded at
2017-07-13 13:50:58
Last updated
2018-12-03 10:21:18
Version
R1
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Telit LM940A11 LTE CAT-11, GPS, mPCIe
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This document describes the QUALCOMM® MSM™ Interface (QMI) architecture and framework. The QMI allows applications on attached Terminal Equipment (TE) devices to access various Services provided by devices based on QUALCOMM’s MSM chipsets and AMSS software.

Download

Uploaded at
2017-07-13 13:59:21
Last updated
2018-12-03 09:37:14
Version
R3
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Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

This guide describes the Telit LM940 and LM960 series cellular modules accepted (raw) QMI commands.

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Uploaded at
2018-11-07 16:10:54
Last updated
2018-12-03 09:35:54
Version
R3
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Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM940A11 LTE CAT-11, GPS, mPCIe

This document describes the integration steps of the cellular modules USB endpoints in Linux systems.

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Uploaded at
2017-08-04 11:15:36
Last updated
2020-03-31 09:26:32
Version
R7
Related products
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910-SV V2 (Reel)
Telit LE910B1-NA S.SKU
Telit LE910-NA1 LTE CAT-1 Developer Kit
Telit LE910-EU1 LTE CAT-1 Developer Kit
Telit LE910-SV1 LTE CAT-1 Developer Kit
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA
Telit LE910-SVL LTE CAT-1
Telit HE910-GL HSPA+ LGA
Telit HE910-NAD HSPA+ LGA
Telit LE910-SVG LTE CAT-3 LGA
Telit HE910-NAR HSPA LGA
Telit HE910-D HSPA+ LGA
Telit LE910-NAG LTE CAT-3 AT&T LGA
Telit LE910-SVG LTE CAT-3 mPCIe
Telit LE910-NVG LTE CAT-3 LGA
Telit FN980 5G M.2
Telit LE910C1-AP LTE CAT-1 mPCIe SIM
Telit LE910C1-NF LTE CAT-1 mPCIe
Telit LE910C4-AP LTE CAT-4 mPCIe SIM
Telit LE910-NA1 S.SKU
Telit LE910-JN1
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LM960A18 LTE CAT-18 mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM960 LTE CAT-18, GPS, mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
Telit HE910-G HSPA+, GPS, mPCIe
Telit HE910-G-SIM HSPA+, GPS, miniPCIe, SIM card holder
Telit HE910-D HSPA+, miniPCIe, Global
Telit HE910-D-SIM HSPA+, miniPCIe, SIM card holder
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit HE910-GL SIM UMTS, miniPCIe, SIM card holder
Telit HE910-G (Voice) HSPA+ LGA
Telit HE910-DG HSPA+ LGA
Telit HE910-EUD HSPA LGA
Telit UE910-EUR HSPA LGA
Telit UE910-NAR HSPA LGA
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit ME910C1-NA S.SKU LTE CAT-M1/NB1 LGA
Telit ME910C1-NA S.SKU GNSS LTE CAT-M1/NB1
Telit ME910C1-E1 LTE CAT-M1/NB1 LGA
Telit ME910C1-E1 GNSS LTE CAT-M1/NB1 LGA
Telit ME910C1-AU LTE CAT-M1/NB1 LGA
Telit ME910C1-AU GNSS LTE CAT-M1/NB1 LGA
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LE910-PCI (LE910C1-NA)
Telit LE910-PCI (LE910C1-AP)
Telit LE910C4-NF
Telit LE910C1-EU
Telit LE910C1-AP
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
Telit LE910C1-NF
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C1-NS LTE CAT-1 Sprint LGA
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe

Document describing the Telit LM940 band configuration and Carrier Aggregation combinations list

Download

Uploaded at
2018-12-03 15:43:16
Last updated
2018-12-03 15:43:16
Version
R5
Related products
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

CE-RED Declaration of conformity document for Telit LM940 cellular module.

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Uploaded at
2018-02-27 15:25:26
Last updated
2019-09-23 14:53:33
Related products
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

This archive contains the Telit XFP Firmware Update Tool installer used to update the firmware on Telit Cellular modules over USB-serial interface.

Download

This archive contains the Windows 10 WHQL certified Telit module drivers for both x86 and x64 system platforms.

Download

Uploaded at
2017-08-04 11:36:45
Last updated
2020-03-27 12:04:12
Version
2.08.0002
Requirements
Microsoft Windows 10
WHQL certified
Related products
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910-SV V2 (Reel)
Telit LE910B1-NA S.SKU
Telit ME910C1-NV LTE CAT-M1 Verizon LGA
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
Telit LE910-JN1
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910C4-NF
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LE910-PCI (LE910C1-AP)
Telit LE910-PCI (LE910C1-NA)
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LM960A18 LTE CAT-18 mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C1-NF
Telit LE910-NA1 S.SKU
Telit ME910C1-NV mPCIe
Telit ME910C1-NA mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LM960 LTE CAT-18, GPS, mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
Telit HE910-G HSPA+, GPS, mPCIe
Telit HE910-G-SIM HSPA+, GPS, miniPCIe, SIM card holder
Telit HE910-D HSPA+, miniPCIe, Global
Telit HE910-D-SIM HSPA+, miniPCIe, SIM card holder
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit HE910-GL SIM UMTS, miniPCIe, SIM card holder
Telit HE910-G (Voice) HSPA+ LGA
Telit HE910-DG HSPA+ LGA
Telit HE910-EUD HSPA LGA
Telit UE910-EUR HSPA LGA
Telit UE910-NAR HSPA LGA
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit ME910C1-NA S.SKU LTE CAT-M1/NB1 LGA
Telit ME910C1-NA S.SKU GNSS LTE CAT-M1/NB1
Telit ME910C1-E1 LTE CAT-M1/NB1 LGA
Telit ME910C1-E1 GNSS LTE CAT-M1/NB1 LGA
Telit ME910C1-AU LTE CAT-M1/NB1 LGA
Telit ME910C1-AU GNSS LTE CAT-M1/NB1 LGA
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE922A6-E2 LTE CAT-6 LGA
Telit LE910-NVG LTE CAT-3 LGA
Telit UE910-N3G HSPA AT&T LGA
Telit UE910-EUD HSPA LGA
Telit LE910-SVG LTE CAT-3 mPCIe
Telit LE910-NAG LTE CAT-3 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit HE910-D HSPA+ LGA
Telit HE910-NAR HSPA LGA
Telit LE910-SVG LTE CAT-3 LGA
Telit UE910-NAD AT&T 3G LGA
Telit HE910-NAD HSPA+ LGA
Telit ME910C1-WW LTE CAT-M1/NB1 LGA
Telit ME910C1-NV GNSS LTE CAT-M1 Verizon LGA
Telit HE910-GL HSPA+ LGA
Telit LE910-SVL LTE CAT-1
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA

Zip archive with Telit cellular modules USB drivers installers for Windows 7, 8.x, 10 both x86 and x64 system architectures.
(Non WHQL certified drivers).

Download

Uploaded at
2017-08-04 11:08:47
Last updated
2019-10-01 09:43:49
Version
1.10.0002
Requirements
Operating systems supported:
Windows 10 x86, x64
Windows 8.x x86, x64
Windows 7 x86, x64
(Not WHQL certified drivers)
Related products
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LM960A18 LTE CAT-18 mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit ME910C1-NA
Telit ME910C1-NA GNSS
Telit ME910C1-E2
Telit ME910C1-K1
Telit ME910C1-J1
Telit ME910C1-NV mPCIe
Telit ME910C1-NA mPCIe
Telit HE910-G HSPA+, GPS, mPCIe
Telit HE910-G-SIM HSPA+, GPS, miniPCIe, SIM card holder
Telit HE910-D HSPA+, miniPCIe, Global
Telit HE910-D-SIM HSPA+, miniPCIe, SIM card holder
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit HE910-GL SIM UMTS, miniPCIe, SIM card holder
Telit HE910-G (Voice) HSPA+ LGA
Telit HE910-DG HSPA+ LGA
Telit HE910-EUD HSPA LGA
Telit UE910-EUR HSPA LGA
Telit UE910-NAR HSPA LGA
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit ME910C1-NA S.SKU LTE CAT-M1/NB1 LGA
Telit ME910C1-NA S.SKU GNSS LTE CAT-M1/NB1
Telit ME910C1-E1 LTE CAT-M1/NB1 LGA
Telit ME910C1-E1 GNSS LTE CAT-M1/NB1 LGA
Telit ME910C1-AU LTE CAT-M1/NB1 LGA
Telit ME910C1-AU GNSS LTE CAT-M1/NB1 LGA
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
Telit LM960 LTE CAT-18, GPS, mPCIe
Telit LE910-NVG LTE CAT-3 LGA
Telit UL865-EUD HSPA LGA
Telit UE910-N3G HSPA AT&T LGA
Telit UE910-EUD HSPA LGA
Telit LE910-SVG LTE CAT-3 mPCIe
Telit LE910-NAG LTE CAT-3 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit HE910-D HSPA+ LGA
Telit HE910-NAR HSPA LGA
Telit UE866-N3G 3G LGA
Telit LE910-SVG LTE CAT-3 LGA
Telit UE910-NAD AT&T 3G LGA
Telit HE910-NAD HSPA+ LGA
Telit ME910C1-WW LTE CAT-M1/NB1 LGA
Telit ME910C1-NV GNSS LTE CAT-M1 Verizon LGA
Telit HE910-GL HSPA+ LGA
Telit LE910-SVL LTE CAT-1
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LE922A6-E2 LTE CAT-6 LGA
Telit LE910-PCI (LE910C1-NA)
Telit LE910-PCI (LE910C1-AP)
Telit LE910C4-NF
Telit LE910C1-EU
Telit LE910C1-AP
Telit LE910C1-NF
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit ME910C1-NV LTE CAT-M1 Verizon LGA
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910C1-EU LTE CAT-1 mPCIe SIM

This archive contains the Telit AT controller tool as well as XFP firmware update tool for Microsoft Windows systems.
It can be used to troubleshoot, test and command the Telit cellular module in a graphical interface.

Download

Firmware V.24.01.5X4 multi image pack including Windows based firmware updater TFI tool and XFP binary stream

It contains Generic firmware version used for most network operators as well as specific configurations for US network operators Verizon, AT&T and Sprint.

The default firmware loaded is the Generic firmware version, please relate to the AT commands guide and AT#FIRMWARE command regarding details on firmware image switching.

The multi firmware update package contains the following images.
Generic v.24.01.514
Verizon v.24.01.524
ATT v.24.01.544
Sprint v.24.01.532

Download

Uploaded at
2019-09-12 14:33:56
Last updated
2019-09-27 10:25:31
Version
V.24.01.5X4
Requirements
Microsoft Windows Systems
Telit LM940 Drivers
Telit XFP firmware download tool for relevant host operating system.
Related products
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LM940A11 LTE CAT-11, GPS, mPCIe

This Windows based firmware updater and firmware update stream file applies firmware V.24.01.5X3 image pack to Telit LM940 modules.
It contains Generic firmware version used for most network operators as well as the specific configurations used for US network operators Verizon and AT&T.
The default firmware loaded is the Generic firmware version, please relate to the AT commands guide regarding details on firmware configuration switching.
Related release notes are included.

Download

Uploaded at
2019-04-04 15:53:50
Last updated
2019-04-10 14:34:59
Version
V.24.01.5X3
Requirements
Microsoft Windows Systems
Telit LM940 Drivers
Telit XFP firmware download tool for relevant host operating system.
Related products
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

This Windows based firmware updater applies firmware V.24.01.5X2 image pack to Telit LM940.
It contains Generic firmware version for used for most network operators as well as the specific configurations used US network operators Verizon and AT&T.
The default firmware loaded is the Generic firmware version, please relate to the AT commands guide regarding details on firmware configuration switching.

Download

Uploaded at
2018-01-18 16:54:23
Last updated
2018-05-16 08:34:09
Version
LM940_24.01.5X2_AGV_TFI_MULTI
Requirements
Microsoft Windows Systems
Telit LM940 Drivers
Related products
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe

This firmware update stream file applies firmware V.24.01.5X2 image pack to Telit LM940 modules.
It contains Generic firmware version used for most network operators as well as the specific configurations used for US network operators Verizon and AT&T.
The default firmware loaded is the Generic firmware version, please relate to the AT commands guide regarding details on firmware configuration switching.

Download

Uploaded at
2018-05-11 12:07:45
Last updated
2018-05-11 12:07:45
Version
LM940_24.01.5X2_AGV_STREAM_MULTI
Requirements
Telit XFP firmware download tool for relevant host operating system.
Related products
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Question

How to set up a simple data connection over Qualcomm QMI interface using libqmi and driver qmi_wwan in Linux?

Solution

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.

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SimCom SIM7100E LTE SMT EU
SimCom SIM7100E LTE mPCIe EU
SimCom SIM7100A LTE mPCIe US
SimCom SIM7100C LTE mPCIe China
Sierra Wireless MC7455 LTE Cat 6
Sierra Wireless EM7455 LTE Cat 6
SimCom SIM7100E LTE mPCIe SIM
Sierra Wireless MC7430 mPCIe
Sierra Wireless EM7430 LTE Cat 6
SIMCom SIM7500A LTE SMT US
SIMCom SIM7500E LTE SMT EU
SIMCom SIM7500E LTE mPCIe EU
SIMCom SIM7500SA LTE mPCIe Audio
Telit LM940A11 LTE CAT-11, GPS, mPCIe
SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
Sierra Wireless EM7565 LTE CAT-12
SIMCom SIM7600E-H LTE CAT-4 mPCIe SIM
SIMCom SIM7600A-H LTE CAT-4 mPCIe Audio
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
SIMCom SIM7600A-H LTE CAT-4 mPCIe US
SIMCom SIM7600V-H LTE CAT-4 mPCIe Audio Verizon
Fibocom NL668-EAU mPCIe LTE CAT-4
SIMCom SIM7600SA-H LTE CAT-4 mPCIe with SIM holder
SIMCom SIM7600E LTE CAT-1 mPCIe
SIMCom SIM7600SA LTE CAT-1 mPCIe
SIMCom SIM7600E-H LTE CAT 4 -mPCIE with Audio
Telit LM960 LTE CAT-18, GPS, mPCIe
Sierra Wireless EM7511 LTE CAT-12
Sierra Wireless EM7565, CAT-12, M.2 CBRS Enabled
Fibocom NL678-E mPCIe LTE CAT-6
SIMCom SIM7600E Development Kit
Sierra Wireless MC-WP7607 LTE CAT-4 mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
SIMCom SIM7906E LTE CAT-6 M.2
SIMCom SIM7906E LTE CAT-6 mPCIe
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
SIMCom SIM7600G-H LTE CAT-4 mPCIe
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910C4-NF
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910C1-NF
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
SIMCom SIM7912G LTE CAT-12 M.2
Telit LM960A18 LTE CAT-18 mPCIe
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Telit LE910C1-AP LTE CAT-1 mPCIe SIM
Telit LE910C1-NF LTE CAT-1 mPCIe
Telit LE910C4-AP LTE CAT-4 mPCIe SIM
Question

How to collect initial diagnostics data and logs for Telit cellular modules needed when requesting Techship technical support?

Solution

In order to ease the troubleshooting of technical problems and understand your end-product or application and its usage scenario we ask you to please provide the following information when creating a technical support ticket at: techship.com/technical_support/

Please give a detailed problem description and in what precise circumstances it is present.

Describe the host system:
-Hardware (system board, processor architecture, other peripheral devices...)
-Operating system with detailed versions (E.g. Windows version and build, Linux distribution, kernel version)
-Drivers used and versions (Linux: out-of-tree vendor drivers or in-kernel drivers?)

Details from the cellular module label:
-Model
-SKU/BOM or P/N code
IMEI number

For Linux systems, capture terminal logs from commands:
uname -a
lsusb
lsusb -t
ifconfig -a
ls -l /dev/serial/by-id
ls -l /sys/bus/usb-serial/devices
dmesg

The cellular module logs can be acquired by accessing one of the USB enumerated serial (COM) interfaces or physical UART serial interfaces accepting AT commands. In Windows device manager they are generally found as modem infterface or serial and ports interface types).

Send AT commands to module and capture the text output:
Test that you get a OK reply:
AT
Enable AT command echo:
ATE1
Verbose error reporting:
AT+CMEE=2
Module model:
AT+CGMM
Firmware version:
AT+CGMR
IMEI Code:
AT+CGSN
USB endpoint configuration:
AT#USBCFG?
Serial port configuration:
AT#PORTCFG?
Operational mode:
AT+CFUN?
Selected network access techniques:
AT+WS46?
List network operator info:
AT+COPS?
Network registration status:
AT+CREG?
AT+CGREG?
AT+CEREG?
Signal strength:
AT+CSQ
Last serving cell network information:
AT#SERVINFO
Current network status:
AT#RFSTS
List APN details:
AT+CGDCONT?
List Packet switch enable/disable status:
AT+CGATT?
List PDP profiles status:
AT+CGACT?
List default data connection details:
AT#BND?
List bearers and IP addresses:
AT+CGCONTRDP=
AT+CGPADDR=
AT#FWSWITCH?
AT#SWPKGV
AT#GAUTH?
AT#CGPADDR=
AT#AUTOBND?
AT#AUTOATT?

Additional test commands for Telit LM940/LM960:
AT#FIRMWARE
AT#FIRMWARE?
AT#GETFW
AT#ACTIVEFW?
AT#CACTL?
AT#RXDIV?
AT#RXTOGGLE?
AT#LRXDIV?
AT#LCFC
AT#TEMPSENS?
AT#GPIO?
AT#HWREV
AT#QSS?
AT#USB3TUNE?
AT#USBSWITCH?

Images
Telit logo
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Telit HE910-G HSPA+, GPS, mPCIe
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Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit HE910-GL SIM UMTS, miniPCIe, SIM card holder
Telit HE910-G (Voice) HSPA+ LGA
Telit HE910-DG HSPA+ LGA
Telit HE910-EUD HSPA LGA
Telit UE910-EUR HSPA LGA
Telit UE910-NAR HSPA LGA
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit ME910C1-NA S.SKU LTE CAT-M1/NB1 LGA
Telit ME910C1-NA S.SKU GNSS LTE CAT-M1/NB1
Telit ME910C1-E1 LTE CAT-M1/NB1 LGA
Telit ME910C1-E1 GNSS LTE CAT-M1/NB1 LGA
Telit ME910C1-AU LTE CAT-M1/NB1 LGA
Telit ME910C1-AU GNSS LTE CAT-M1/NB1 LGA
Telit LN940 A11 LTE CAT-11 M.2
Telit LN940 A9 LTE CAT-9 M.2
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
Telit ME910C1-E1 Developer kit
Telit ME910C1-AU Developer Kit
Telit ME910C1-N1 Developer Kit
Telit LE910-NA1 LTE CAT-1 Developer Kit
Telit LE910-EU1 LTE CAT-1 Developer Kit
Telit LE910-SV1 LTE CAT-1 Developer Kit
Telit LM960 LTE CAT-18, GPS, mPCIe
Telit LN941 LTE CAT-6, M.2
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA
Telit LE910B1-NA S.SKU
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910-SVL LTE CAT-1
Telit HE910-GL HSPA+ LGA
Telit ME910C1-NV LTE CAT-M1 Verizon LGA
Telit ME910C1-NV GNSS LTE CAT-M1 Verizon LGA
Telit ME910C1-WW LTE CAT-M1/NB1 LGA
Telit HE910-NAD HSPA+ LGA
Telit UE910-NAD AT&T 3G LGA
Telit LE910-SVG LTE CAT-3 LGA
Telit HE910-NAR HSPA LGA
Telit HE910-D HSPA+ LGA
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
Telit LE910-NAG LTE CAT-3 AT&T LGA
Telit LE910-SVG LTE CAT-3 mPCIe
Telit UE910-EUD HSPA LGA
Telit UE910-N3G HSPA AT&T LGA
Telit LE910-NVG LTE CAT-3 LGA
Telit LE910-NA1 S.SKU
Telit LE910-JN1
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910C4-NF
Telit ME910C1-NA
Telit ME910C1-NA GNSS
Telit ME910C1-E2
Telit ME910C1-K1
Telit ME910C1-J1
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LE910-PCI (LE910C1-AP)
Telit LE910-PCI (LE910C1-NA)
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit ME910C1-NV mPCIe
Telit ME910C1-NA mPCIe
Telit LE910-SV V2 (Reel)
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910C1-NF
Telit ME310G1-WW CAT-M1/NB-IoT S.SKU LGA
Telit ME910G1-WW CAT-M1/NB-IoT S.SKU LGA
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
Telit LM960A18 LTE CAT-18 mPCIe
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Telit LE910C1-AP LTE CAT-1 mPCIe SIM
Telit LE910C1-NF LTE CAT-1 mPCIe
Telit LE910C4-AP LTE CAT-4 mPCIe SIM
Question

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?

Solution

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 EM75xx series module:
AT!ENTERCND="A710"
AT#USBCOMP=1,3,100D
AT!RESET

Sierra Wireless EM74xx, MC74xx series module:
AT!ENTERCND=”A710”
AT!USBCOMP=1,1,100D
AT!RESET

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.

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Huawei ME909s-821 mPCIe
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Huawei ME909s-120 LGA EU
Huawei MU709s-6 mPCIe
SimCom SIM7100E LTE SMT EU
SimCom SIM7100E LTE mPCIe EU
SimCom SIM7100A LTE mPCIe US
SimCom SIM7100C LTE mPCIe China
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Sierra Wireless MC7455 LTE Cat 6
Sierra Wireless EM7455 LTE Cat 6
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Welink ME3630 U1A mPCIe (US)
SIMCom SIM7500SA LTE mPCIe Audio
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Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
Sierra Wireless EM7565 LTE CAT-12
Welink ME3630 C1C mPCIe CN
SIMCom SIM7600E-H LTE CAT-4 mPCIe SIM
SIMCom SIM7600A-H LTE CAT-4 mPCIe Audio
Welink ME3630 E1C M.2 EU
Welink ME3630 E2C CAT-1 M.2 EU
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
SIMCom SIM7600A-H LTE CAT-4 mPCIe US
SIMCom SIM7600V-H LTE CAT-4 mPCIe Audio Verizon
SIMCom SIM7600SA-H LTE CAT-4 mPCIe with SIM holder
SIMCom SIM7600E LTE CAT-1 mPCIe
SIMCom SIM7600SA LTE CAT-1 mPCIe
SIMCom SIM7600E-H LTE CAT 4 -mPCIE with Audio
Telit LM960 LTE CAT-18, GPS, mPCIe
Sierra Wireless EM7511 LTE CAT-12
Sierra Wireless EM7565, CAT-12, M.2 CBRS Enabled
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA
Telit LE910B1-NA S.SKU
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
SIMCom SIM7600G-H LTE CAT-4 mPCIe
Telit LE910-NA1 S.SKU
Telit LE910-JN1
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910C4-NF
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LE910-PCI (LE910C1-AP)
Telit LE910-PCI (LE910C1-NA)
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910C1-NF
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
Telit LM960A18 LTE CAT-18 mPCIe
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Question

How can we establish data connection for cellular modules in Windows 8 and Windows 10 systems?

Solution

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".

Images
Windows 10 connection manager Windows 10 connection settings
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Huawei ME909s-821 mPCIe
Huawei ME909s-821 LGA
Huawei ME909s-120 mPCIe EU
Huawei MU709s-6 mPCIe
SimCom SIM7100E LTE SMT EU
SimCom SIM7100E LTE mPCIe EU
SimCom SIM7100A LTE mPCIe US
SimCom SIM7100C LTE mPCIe China
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Sierra Wireless EM7455 LTE Cat 6
SimCom SIM7100E LTE mPCIe SIM
Sierra Wireless MC7430 mPCIe
Sierra Wireless EM7430 LTE Cat 6
SIMCom SIM7500A LTE SMT US
SIMCom SIM7500E LTE SMT EU
Welink ME3630 E1C LCC EU
Welink ME3630 E1C mPCIe EU
SIMCom SIM7500E LTE mPCIe EU
Welink ME3630 U1A LCC (US)
Welink ME3630 U1A mPCIe (US)
SIMCom SIM7500SA LTE mPCIe Audio
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit LN940 A11 LTE CAT-11 M.2
Telit LN940 A9 LTE CAT-9 M.2
SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
Welink ME3630 C1C mPCIe CN
SIMCom SIM7600E-H LTE CAT-4 mPCIe SIM
SIMCom SIM7600A-H LTE CAT-4 mPCIe Audio
Welink ME3630 E1C M.2 EU
Welink ME3630 E2C CAT-1 M.2 EU
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
SIMCom SIM7600A-H LTE CAT-4 mPCIe US
SIMCom SIM7600V-H LTE CAT-4 mPCIe Audio Verizon
SIMCom SIM7600SA-H LTE CAT-4 mPCIe with SIM holder
SIMCom SIM7600E LTE CAT-1 mPCIe
SIMCom SIM7600SA LTE CAT-1 mPCIe
SIMCom SIM7600E-H LTE CAT 4 -mPCIE with Audio
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Telit LN941 LTE CAT-6, M.2
SIMCom SIM7600E Development Kit
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Telit LE910C4-NF LTE CAT-4 mPCIe
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Telit LE910B1-NA S.SKU
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
SIMCom SIM7600G-H LTE CAT-4 mPCIe
Telit LE910-NA1 S.SKU
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910C4-NF
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LE910-PCI (LE910C1-AP)
Telit LE910-PCI (LE910C1-NA)
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
Telit LE910C1-NF
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
Telit LM960A18 LTE CAT-18 mPCIe
Telit LE910C1-EU LTE CAT-1 mPCIe SIM
Question

What Linux kernel modules and configs are commonly used for communicating with cellular modules over their USB interface?

Solution

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.

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Huawei MU709s-2 devkit
Huawei MS2131i-8 USB-stick
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Huawei ME909s-821 LGA
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Sierra Wireless MC7430 mPCIe
SimCom SIM5360E-mPCIe SIM
Sierra Wireless EM7430 LTE Cat 6
Techship Starter kit Huawei MU709s
Techship Starter kit Huawei ME909s
SIMCom SIM7500A LTE SMT US
SIMCom SIM5300E HSPA SMT
SIMCom SIM5300E Development kit
SIMCom SIM7500A Development kit
Sierra Wireless WP7502
SIMCom SIM7500E LTE SMT EU
SIMCom SIM7500E Development Kit
Welink ME3630 E1C LCC EU
Welink ME3630 E1C mPCIe EU
SIMCom SIM7500E LTE mPCIe EU
Welink ME3630 U1A LCC (US)
Welink ME3630 U1A mPCIe (US)
SIMCom SIM7500SA LTE mPCIe Audio
SIMCom SIM7000E CAT-M/NB-IoT SMT
Telit HE910-G HSPA+, GPS, mPCIe
Telit HE910-G-SIM HSPA+, GPS, miniPCIe, SIM card holder
Telit HE910-D HSPA+, miniPCIe, Global
Telit HE910-D-SIM HSPA+, miniPCIe, SIM card holder
Telit LM940A11 LTE CAT-11, GPS, mPCIe
Telit LE910-EU V2 LTE CAT-4, mPCIe
Telit LE910-SV V2 LTE CAT-4, Verizon, mPCIe
Telit LE910-NA V2 LTE CAT-4, AT T, TM, mPCIe
Telit LE910-AU V2 LTE CAT-4, Telstra, mPCIe
Telit HE910-GL SIM UMTS, miniPCIe, SIM card holder
Telit HE910-G (Voice) HSPA+ LGA
Telit HE910-DG HSPA+ LGA
Telit HE910-EUD HSPA LGA
Telit LE910-NA1 LTE CAT-1 LGA
Telit LE910-EU1 LTE CAT-1 LGA
Telit LE910-SV1 LTE CAT-1 LGA
Telit LE910-EU V2 LTE CAT-4 LGA
Telit LE910-NA V2 LTE CAT-4 LGA
Telit LE910D1-E1 LTE CAT-1 LGA
Telit LN940 A11 LTE CAT-11 M.2
Telit LN940 A9 LTE CAT-9 M.2
SIMCom SIM7000E Development Kit
Huawei MS2372h-153 LTE USB Dongle EU
SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
Sierra Wireless EM7565 LTE CAT-12
Welink ME3630 C1C mPCIe CN
SIMCom SIM7600E-H LTE CAT-4 mPCIe SIM
Huawei MS2372h-517 LTE USB Dongle US
SIMCom SIM7600A-H LTE CAT-4 mPCIe Audio
Huawei MS2372h-607 LTE USB Dongle Asia
Welink ME3630 E1C M.2 EU
Welink ME3630 E2C CAT-1 M.2 EU
Telit LE910-NA V2 LTE CAT-4, S.SKU, mPCIe
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
SIMCom SIM7600A-H LTE CAT-4 mPCIe US
SIMCom SIM7600V-H LTE CAT-4 mPCIe Audio Verizon
Telit LE910-NA1 LTE CAT-1 Developer Kit
Telit LE910-EU1 LTE CAT-1 Developer Kit
Telit LE910-SV1 LTE CAT-1 Developer Kit
SIMCom SIM7020E-SUB KIT Developer kit
SIMCom SIM7000G
SIMCom SIM7020E NB-IoT SMT
SIMCom SIM7600SA-H LTE CAT-4 mPCIe with SIM holder
SIMCom SIM7600E LTE CAT-1 mPCIe
SIMCom SIM7600SA LTE CAT-1 mPCIe
SIMCom SIM7600E-H LTE CAT 4 -mPCIE with Audio
Telit LM960 LTE CAT-18, GPS, mPCIe
Telit LN941 LTE CAT-6, M.2
Sierra Wireless EM7511 LTE CAT-12
Sierra Wireless EM7565, CAT-12, M.2 CBRS Enabled
SIMCom SIM7000G Development Kit
SIMCom SIM7000E CAT-M/NB-IoT PCIE
SIMCom SIM7000G CAT-M/NB-IoT/GSM miniPCIe
SIMCom SIM7600E Development Kit
SIMCom SIM7020G-SUB KIT
Sierra Wireless MC-WP7607 LTE CAT-4 mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe
Telit LE910-NA V2 LTE CAT-4, S.SKU LGA
Telit LE910B1-NA S.SKU
Telit LE910C1-NS LTE CAT-1 Sprint mPCIe
Telit LE910-SVL LTE CAT-1
Telit HE910-GL HSPA+ LGA
SIMCom SIM7906E LTE CAT-6 M.2
SIMCom SIM7906E LTE CAT-6 mPCIe
SIMCom SIM7000A CAT-M/NB-IoT mPCIe
Telit HE910-NAD HSPA+ LGA
Telit LE910-SVG LTE CAT-3 LGA
Telit HE910-NAR HSPA LGA
Telit HE910-D HSPA+ LGA
Telit LE910C1-NA LTE CAT-1 AT&T LGA
Telit LE910C1-NS LTE CAT-1 Sprint LGA
Telit LE910-NAG LTE CAT-3 AT&T LGA
Telit LE910-SVG LTE CAT-3 mPCIe
Telit LE910-NVG LTE CAT-3 LGA
SIMCom SIM7600G-H LTE CAT-4 mPCIe
Telit LE910-NA1 S.SKU
Telit LE910-JN1
Telit LE910C1-AP
Telit LE910C1-EU
Telit LE910B1-NA
Telit LE910B1-SA
Telit LE910-AU V2
Telit LE910-SV V2
Telit LE910B4-NA
Telit LE910C4-NF
Telit LE910-PCI (LE910-SV1)
Telit LE910-PCI (LE910-EU1)
Telit LE910-PCI (LE910-JN1)
Telit LE910-PCI (LE910-NA1)
Telit LE910-PCI (LE910C1-AP)
Telit LE910-PCI (LE910C1-NA)
Telit LE910C1-EU LTE CAT-1 mPCIe
Telit LE910-SV V2 (Reel)
Telit LE910C4-EU LTE CAT-4 mPCIe
Telit LE910C4-EU LTE CAT-4 mPCIe SIM
GosuncnWelink GM500 U1A CAT-4 M.2
Telit LE910C1-NF
SIMCom SIM7070E CAT-M/NB2
SIMCom SIM7070E Development Kit
Telit LM940A11, HW Rev. 2, LTE CAT-11, GPS, mPCIe
Telit LE910C4-NF LTE CAT-4 mPCIe SIM
SIMCom SIM7912G LTE CAT-12 M.2
Telit LM960A18 LTE CAT-18 mPCIe
Question

We cannot acquire an DHCP address over qmi_wwan driver when using Raspbian Linux OS?

Solution

Raspbian uses dhcpd to probe all available network interfaces found in the system, which is problematic for the qmi_wwan driver interface, if it is done before being configured properly when using cellular modules supporting only Raw-IP.

This can be avoided by setting dhcpd to deny the related cellular module network interface (most often named wwan0 by the system).
Add to the /etc/dhcpcd.conf file in Raspbian the following line (in the end):
denyinterfaces wwan0

Now, restart the system (preferably re-power it) so cellular module fully restarts also.

At next startup, the settings should be applied and you can now configure and use the qmi interface as described in some of the others faq's, found on the Techship webpage.

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