Telit Wireless Solutions LM940 1.0 Design Manual
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Telit Wireless Solutions LM940 1.0 Design Manual

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LM940
Translation Board HW Design Guide
1VV0301384 Rev. 1 – 2021-06-16
Telit Technical Documentation

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Summary of Contents for Telit Wireless Solutions LM940 1.0

  • Page 1 LM940 Translation Board HW Design Guide 1VV0301384 Rev. 1 – 2021-06-16 Telit Technical Documentation...

  • Page 2: Applicability Table

    LM940 TLB Hardware Design Guide APPLICABILITY TABLE PRODUCTS LM940, 1.0 LM940, 2.0 1VV0301384 Rev. 1 Page 2 of 28 2021-06-16 Not Subject to NDA...

  • Page 3: Table Of Contents

    LM940 TLB Hardware Design Guide CONTENTS APPLICABILITY TABLE CONTENTS INTRODUCTION Scope Audience Contact Information, Support Symbol Conventions Related Documents GENERAL PRODUCT DESCRIPTION Overview TLB View Low Power Mode (LPM) Antenna Ports Evaluation Board Connections COMPONENT ASSEMBLY DIAGRAM Searchable Layout SCHEMATICS PRODUCT AND SAFETY INFORMATION Copyrights and Other Notices 5.1.1.
  • Page 4 LM940 TLB Hardware Design Guide GLOSSARY DOCUMENT HISTORY 1VV0301384 Rev. 1 Page 4 of 28 2021-06-16 Not Subject to NDA...

  • Page 5: Introduction

    LM940 TLB Hardware Design Guide 1. INTRODUCTION Scope This document describes the LM940 TLB which is part of complete LM940 Development Kit (Dev-Kit). Audience This document is intended for Telit customers, especially system integrators, about to implement their applications using the Telit LM940 module. Contact Information, Support For general contact, technical support services, technical questions and report of documentation errors contact Telit Technical Support at:...

  • Page 6: Symbol Conventions

    LM940 TLB Hardware Design Guide Symbol Conventions Danger: This information MUST be followed or catastrophic equipment failure or personal injury may occur. Warning: Alerts the user on important steps about the module integration. Note/Tip: Provides advice and suggestions that may be useful when integrating the module.

  • Page 7: General Product Description

    30.00 x 2.70mm, +/- 0.15 mm tolerance and 52 pins) updated pin mapping. PCB reference numbers: Board PCB Code CS1742E CS1824A, CS1914B Module LM940 1.0, LM940 2.0 (CS1822x) Table 2: PCB reference numbers 1VV0301384 Rev. 1 Page 7 of 28 2021-06-16 Not Subject to NDA...

  • Page 8: Tlb View

    LM940 TLB Hardware Design Guide TLB View The below pictures show the TLB top and bottom view. LM940 1.0 TLB Top View Figure 1: LM940 1.0 TLB Top View LM940 1.0 TLB Bottom View Figure 2: LM940 1.0 TLB Bottom View 1VV0301384 Rev. 1...
  • Page 9 LM940 TLB Hardware Design Guide LM940 2.0 TLB Top View Figure 3: LM940 2.0 TLB Top View LM940 2.0 TLB Bottom View Figure 4: LM940 2.0 TLB Bottom View 1VV0301384 Rev. 1 Page 9 of 28 2021-06-16 Not Subject to NDA...

  • Page 10: Low Power Mode (Lpm)

    LM940 TLB Hardware Design Guide Low Power Mode (LPM) Figure 5: Low Power Mode This section contains how to switch to LPM mode by means of a header jumper. Jumper Header Description 2 – 3: Low LPM mode The W_DISABLE_N signal is provided to trigger W_DISABLE_N the LM940 to switch to Low Power Mode (also known as “Airplane Mode”).

  • Page 11: Antenna Ports

    LM940 TLB Hardware Design Guide Antenna Ports LM940 1.0 TLB Figure 6: LM940 1.0 TLB Antenna Ports 1VV0301384 Rev. 1 Page 11 of 28 2021-06-16 Not Subject to NDA...
  • Page 12 LM940 TLB Hardware Design Guide LM940 2.0 TLB Figure 7: LM940 2.0 TLB Antenna Ports Note: For more detailed information regarding Antenna ports, please refer to 1VV0301352 LM940 HW Design Guide, Chapter “Antenna requirements”. 1VV0301384 Rev. 1 Page 12 of 28 2021-06-16 Not Subject to NDA...

  • Page 13: Evaluation Board Connections

    LM940 TLB Hardware Design Guide Evaluation Board Connections Figure 8: Telit Evaluation Board Note: For more detailed information regarding power supply source selection, please refer to 1VV0301249 Telit Evaluation Board (EVB) HW User Guide, Chapter “Supply Source Selection”. Figure 9: 12V AC Adaptor 1VV0301384 Rev.
  • Page 14 LM940 TLB Hardware Design Guide Figure 10: Interface of Telit Evaluation Board Interface Desciption SIM Card Both SIM 1 and SIM2 sockets on the EVB can be used Power ON To Power-ON the Telit module, connect an AC adaptor Power OFF To Power-OFF the Telit module, unplug an adaptor To reset the Telit module, press the reset button for Modem Reset...

  • Page 15: Component Assembly Diagram

    LM940 TLB Hardware Design Guide 3. COMPONENT ASSEMBLY DIAGRAM Searchable Layout LM940 1.0 Component Diagram TOP View Figure 11: LM940 1.0 Component Diagram TOP View 1VV0301384 Rev. 1 Page 15 of 28 2021-06-16 Not Subject to NDA...
  • Page 16 LM940 TLB Hardware Design Guide LM940 1.0 Component Diagram BOTTOM View Figure 12: LM940 1.0 Component Diagram BOTTOM View 1VV0301384 Rev. 1 Page 16 of 28 2021-06-16 Not Subject to NDA...
  • Page 17 LM940 TLB Hardware Design Guide LM940 2.0 Component Diagram TOP View Figure 13: LM940 2.0 Component Diagram TOP View 1VV0301384 Rev. 1 Page 17 of 28 2021-06-16 Not Subject to NDA...
  • Page 18 LM940 TLB Hardware Design Guide LM940 2.0 Component Diagram BOTTOM View Figure 14: LM940 2.0 Component Diagram BOTTOM View 1VV0301384 Rev. 1 Page 18 of 28 2021-06-16 Not Subject to NDA...

  • Page 19: Schematics

    LM940 TLB Hardware Design Guide 4. SCHEMATICS Searchable PDF LM940 1.0 TLB Figure 15: LM940 1.0 TLB Schematic (1/2) Figure 16: LM940 1.0 TLB Schematic (2/2) 1VV0301384 Rev. 1 Page 19 of 28 2021-06-16 Not Subject to NDA...
  • Page 20 LM940 TLB Hardware Design Guide LM940 2.0 TLB Figure 17: LM940 2.0 TLB Schematic (1/2) Figure 18: LM940 2.0 TLB Schematic (1/2) 1VV0301384 Rev. 1 Page 20 of 28 2021-06-16 Not Subject to NDA...
  • Page 21 LM940 TLB Hardware Design Guide Note: For a higher resolution version of the schematic diagram, please contact Telit technical support as below. TS-EMEA@telit.com • TS-AMERICAS@telit.com • • TS-APAC@telit.com TS-SRD@telit.com • 1VV0301384 Rev. 1 Page 21 of 28 2021-06-16 Not Subject to NDA...

  • Page 22: Product And Safety Information

    LM940 TLB Hardware Design Guide 5. PRODUCT AND SAFETY INFORMATION Copyrights and Other Notices SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE Although reasonable efforts have been made to ensure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from the use of the information contained herein.

  • Page 23: Usage And Disclosure Restrictions

    LM940 TLB Hardware Design Guide including – but not limited to - the exclusive right to copy or reproduce in any form the copyrighted products. Accordingly, any copyrighted computer programs contained in Telit’s products described in this instruction manual shall not be copied (reverse engineered) or reproduced in any manner without the express written permission of the copyright owner, being Telit or the Third Party software supplier.

  • Page 24: Third Party Rights

    LM940 TLB Hardware Design Guide 5.2.5. Third Party Rights The software may include Third Party’s software Rights. In this case the user agrees to comply with all terms and conditions imposed in respect of such separate software rights. In addition to Third Party Terms, the disclaimer of warranty and limitation of liability provisions in this License, shall apply to the Third Party Rights software as well.
  • Page 25 LM940 TLB Hardware Design Guide • it can interfere with other electronic devices, particularly in environments such as hospitals, airports, aircrafts, etc. • there is a risk of explosion such as gasoline stations, oil refineries, etc. It is the responsibility of the user to enforce the country regulation and the specific environment regulation.
  • Page 26 LM940 TLB Hardware Design Guide 6. GLOSSARY Evaluation Board Translation Board Board to Board Low Power Mode 1VV0301384 Rev. 1 Page 26 of 28 2021-06-16 Not Subject to NDA...
  • Page 27 LM940 TLB Hardware Design Guide 7. DOCUMENT HISTORY Revision Date Changes 2021-06-16 Minor changes on the language Minor changes on the layout Legal Notices Added 1.2 Audience Added 1.3 Contanct Information, Suppotr Added 1.4 Symbol Conventions Added 2021-06-03 First released From Mod.0818 rev.4 1VV0301384 Rev.

This manual is also suitable for:

Lm940 2.0

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