Telit Wireless Solutions LE51-868 S User Manual

LE51-868 S RF Module User Guide

1VV0301131 Rev.0 – 2014-01-16

LE51-868 S RF Module User Guide

1VV0301131Rev.0 – 2014-01-16

APPLICABILITY TABLE

PRODUCT

LE51-868 S

SPECIFICATIONS SUBJECT TO CHANGE WITHOut Notice

Notice

While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies or omissions. Telit reserves the right to make changes to any products described herein and reserves the right to revise this document and to make changes from time to time in content hereof with no obligation to notify any person of revisions or changes. Telit does not assume any liability arising out of the application or use of any product, software, or circuit described herein; neither does it convey license under its patent rights or the rights of others.

It is possible that this publication may contain references to, or information about Telit products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that Telit intends to announce such Telit products, programming, or services in your country.

LE51-868 S RF Module User Guide

1VV0301131Rev.0 – 2014-01-16

Copyrights

This instruction manual and the Telit products described in this instruction manual may be, include or describe copyrighted Telit material, such as computer programs stored in semiconductor memories or other media. Laws in the Italy and other countries preserve for Telit and its licensors certain exclusive rights for copyrighted material, including the exclusive right to copy, reproduce in any form, distribute and make derivative works of the copyrighted material. Accordingly, any copyrighted material of Telit and its licensors contained herein or in the Telit products described in this instruction manual may not be copied, reproduced, distributed, merged or modified in any manner without the express written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Telit, as arises by operation of law in the sale of a product.

Computer Software Copyrights

The Telit and 3rd Party supplied Software (SW) products described in this instruction manual may include copyrighted Telit and other 3rd Party supplied computer programs stored in semiconductor memories or other media. Laws in the Italy and other countries preserve for Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW computer programs contained in the Telit products described in this instruction manual may not be copied (reverse engineered) or reproduced in any manner without the express written permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Telit or other 3rd Party supplied SW, except for the normal non-exclusive, royalty free license to use that arises by operation of law in the sale of a product.

LE51-868 S RF Module User Guide

1VV0301131Rev.0 – 2014-01-16

Usage and Disclosure Restrictions License Agreements

The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.

Copyrighted Materials

Software and documentation are copyrighted materials. Making unauthorized copies is prohibited by law. No part of the software or documentation may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, without prior written permission of Telit

High Risk Materials

Components, units, or third-party products used in the product described herein are NOT fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control equipment in the following hazardous environments requiring fail-safe controls: the operation of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s) specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities.

Trademarks

TELIT and the Stylized T Logo are registered in Trademark Office. All other product or service names are the property of their respective owners.

Contents

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1. Introduction ................................................. 7

1.1. Scope ..................................................... 7

1.2. Audience .................................................. 7

1.3. Contact Information, Support .............................. 7

1.4. Document Organization ..................................... 7

1.5. Text Conventions .......................................... 8

1.6. Related Documents ......................................... 9

2. Requirements ................................................ 10

2.1. General Requirements ..................................... 10

2.2. 868 MHz band Requirements ................................ 10

2.3. Other Requirements ....................................... 11

2.4. Functional Requirements .................................. 11

2.5. Software ................................................. 12

2.6. Temperature Requirements ................................. 12

3. General Characteristics ..................................... 13

3.1. Mechanical Characteristics ............................... 13

3.2. Mechanical dimensions .................................... 14

3.3. Recommended Land pattern ................................. 15

3.4. DC Characteristics ....................................... 15

3.5. LE51-868 S Functional Characteristics .................... 16

3.6. Digital Characteristic ................................... 18

3.7. Absolute Maximum Ratings ................................. 18

3.8. Ordering Information ..................................... 19

4. Technical Description ....................................... 21

4.1. Module Top View (cover side) ............................. 21

4.2. Pin-out of the module LE51-868 S ......................... 22

4.3. Pin-out of the DIP Interface ............................. 23

4.4. Pin-out correspondence table ............................. 24

4.5. Description of the signals ............................... 25

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5. Process Information ......................................... 26

5.1. Delivery ................................................. 26

5.2. Storage .................................................. 27

5.3. Soldering pad pattern .................................... 27

5.4. Solder past .............................................. 27

5.5. Placement ................................................ 28

5.6. Soldering Profile (RoHS Process) ......................... 28

6. Board Mounting Recommendation ............................... 30

6.1. Electrical environment ................................... 30

6.2. Power supply decoupling on LE51-868 S module ............. 30

6.3. RF layout considerations ................................. 31

6.4. Antenna connections on printed circuit boards ............ 32

6.5. LE51-868 S Interfacing ................................... 33

7. Safety Recommendations ...................................... 36

8. Glossary .................................................... 37

9. Document History ............................................ 38

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1. Introduction

1.1. Scope

Scope of this document is to present the features and the application of the Telit LE51-868 S radio modules.

1.2. Audience

This document is intended for developers using Telit LE51-868 S radio modules.

1.3. Contact Information, Support

For general contact, technical support, to report documentation errors and to order manuals, contact Telit Technical Support Center (TTSC) at:

TS-SRD@telit.com TS-NORTHAMERICA@telit.com TS-LATINAMERICA@telit.com TS-APAC@telit.com

Alternatively, use:

http://www.telit.com/en/products/technical-support-center/contact.php

For detailed information about where you can buy the Telit modules or for recommendations on accessories and components visit:

http://www.telit.com

To register for product news and announcements or for product questions contact Telit Technical Support Center (TTSC).

Our aim is to make this guide as helpful as possible. Keep us informed of your comments and suggestions for improvements.

Telit appreciates feedback from the users of our information.

1.4. Document Organization

This document contains the following chapters

“Chapter 1: “Introduction” provides a scope for this document, target audience, contact and

support information, and text conventions.

“Chapter 2: “Requirements” gives an overview of the limitations imposed by Reference

standards.

“Chapter 3: “General Characteristics” describes in detail the characteristics of the product.

“Chapter 4: “Technical Description” describes in detail the signals and pin-out of the product. “Chapter 5: “Process information” describes in detail the delivery, storage, soldering and

placement of the product.

“Chapter 6: “Board Mounting Recommendations” describes in detail the interface and

coupling of the product.

“Chapter 8: “Glossary” shows acronyms used in the document. “Chapter 9: “Document history” describes the revision history of the document.

1.5. Text Conventions

Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur.

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Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction.

Tip or Information – Provides advice and suggestions that may be useful when integrating the module.

All dates are in ISO 8601 format, i.e. YYYY-MM-DD.

1.6. Related Documents

• [1] EN 300 220-2 v2.4.1, ETSI Standards for SRD , May 2012

• [2] ERC Rec 70-03, ERC Recommendation for SRD, October 2012

• [3] 2002/95/EC, Directive of the European Parliament and of the Council, 27 January 2003

• [4] SR Tool User Guide, 1vv0300899

• [5] 2006/771/EC, Harmonization of the radio spectrum for use by short-range devices

• [6] 2009/381/EC, Amending Decision 2006/771/EC on harmonization of the radio

spectrum for use by short-range devices

• [7] Sigfox Stand-Alone Module User Guide, 1vv0301109

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Band g3

869.400

– 869.650

500 25 kHz or the whole band

2. Requirements

2.1. General Requirements

The LE51-868 S module is a multi-channel radio board, delivering up to 35 mW in the 868 MHz ISM band (unlicensed frequency band).

It is delivered with preloaded protocol stack:

• LE51-868 S SIGFOX™ Network Software.

LE51-868 S is pin-to-pin compatible with LE, NE and ME modules working at different frequencies.

LE51-868 S is also pin-to-pin compatible with Telit ZE Family (ZigBee 2007 and ZigBee PRO stack).

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2.2. 868 MHz band Requirements

The “ERC recommendation 70-03” describes the different usable sub-bands in the 868 MHz license free band, in terms of bandwidth, maximum power, duty cycle and channel spacing. LE51-868 S can operate on Annex 1, g1 band where “ERC recommendation 70-03” gives the following limitations:

ERC recommendation 70-03

Band Frequency band

(MHz)

Annex 1 g1 868.0 – 868.6 25 No channel spacing specified 1

This band is free to use but the module and the user must respect some limitations. Most of these restrictions are integrated in the conception of the module, except the duty cycle. For example, the g1 sub-band from 868.000 to 868.600 MHz band is limited to a 1% duty cycle. This means that each module is limited to a total transmit time of 36 seconds per hour. It is the responsibility of the user to respect the duty cycle. Sigfox has also a limitation on this band to ensure unsaturated network.

In order to fulfil the ETSI 70-03 specification requirement regarding duty cycle on ISM band and to be aligned with Sigfox network management, each hour the application can send up to 72 Bytes (e.g., 6 messages of 12 bytes each).

Maximum radiated power (mW)

Channel spacing (kHz)

Duty cycle (%)

Furthermore, the module complies with the ETSI 300-220-2 v2.3.1 standards (specific for SRD) whose main requirements are described in Appendix 1.

Finally, the module complies with the European Directive 2002/95/EC concerning the Restrictive Usage of Hazardous Substances (RoHS).

Country

Restriction

Reason/Remark

Spain

Limited implementation

to the band 863

868 MHz

The Netherlands

Not Implemented

Under stu

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National Restrictions for non specific SR devices Annex 1 band g1-g4:

Band G

Austria Not Implemented Planned Finland Limited Implementation

Audio, video and voice not allowed Planned 2011

Georgia Not Implemented

Sweden Not Implemented

Ukraine Limited implementation

Band G1

Georgia Russian Federation

Not Implemented Not Implemented

863-865 / 868-868.6 / 868.6-868.7 /

869.2-869.25 MHz

Ukraine Not Implemented e.i.r.p. ≤25 mW

2.3. Other Requirements

The module complies with the European Directive 2002/95/EC concerning the Restrictive Usage of Hazardous Substances (RoHS).

2.4. Functional Requirements

The LE51-868 S module is a complete solution from serial interface to RF interface. The LE51-868 module has a digital part and a RF part. The radio link on Sigfox network is a mono-directional link, since RX features are not required to be compliant with the network protocol.

The digital part has the following functionalities:

• Communication interface

• I/O management

• Micro controller with embedded Telit Software Stack supporting Sigfox protocol

The RF part has the following functionalities:

• Frequency synthesis

• Front-end

• Power amplification

Operating

LE51-868 S RF Module User Guide

• Packet handling

2.5. Software

The LE51-868 S module is provided pre-flashed with one of the available Telit in-house Protocol Stack.

Please refer to Protocol Stack User Guide [7] for detailed information.

2.6. Temperature Requirements

Minimum Typical Maximum Unit

Temperature - 40 25 + 85 °C Relative humidity @

25°C

Storage

Temperature - 40 25 + 85 °C

20 75 %

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Telit Wireless Solutions LE51-868 S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual