LM940 Hardware Design Guide
1VV0301352 Rev. 18 Page 13 of 75 2022-01-04
Refer to Chapter 12. Reference Table of RF Bands Characteristics for details information
about frequencies and bands.
Target Market
LM940 can be used for applications where very high bandwidth, extensive band coverage
and multiple network carriers certifications in a single SKU are required, such as:
• Industrial equipment
• Internet connectivity devices (mobile routers, access points)
Main Features
The LM940 family of industrial grade cellular modules features LTE and multi-RAT
module together with an on-chip powerful application processor and a rich set of
interfaces.
The major functions and features are listed below.
• Multi-RAT cellular module for data communication
o LTE FDD/TDD Cat11(600/75 Mbps DL/UL)
o WCDMA up to DC HSPA+, Rel.9
• Support for GPS, GLONASS, BeiDou, Galileo
Two USIM ports –
dual voltage
• Support of two SIM interfaces
• Class B and Class C support
• Clock rates up to 4 MHz
Rich set of interfaces, including:
• USB2.0 / USB3.0 – USB port is typically used for:
o Flashing of firmware and module configuration
o Production testing
o Accessing the Application Processor’s file system
o AT command access
o High-speed WWAN access to external host
o Diagnostic monitoring and debugging
o Communication between Java application environment and an external
host CPU
o NMEA data to an external host CPU
• Peripheral Ports – GPIOs
• Advanced security features
o Boot integrity of firmware up to customer applications
o Embedded security
• FOTA (optional)
• Telit Unified AT command set
Mini PCIe Form factor (50.95x30x2.7mm), accommodating multiple RF bands
Environment and
quality requirements
The entire module is designed and qualified by Telit to satisfy environment and quality
requirements for use in applications.
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