Telit Wireless Solutions xE50-868 series, LE50-868, ME50-868 User Manual

xE50-868 RF Module User Guide

1VV0300905 Rev.14 – 2018-01-2503-16

xE50-433/868 RF Module User Guide

1VV0300905 Rev.14 – 2018-103-16

APPLICABILITY TABLE

PRODUCT

LE50-868

ME50-868

xE50-433/868 RF Module User Guide

1VV0300905 Rev.14 – 2018-103-16

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 inaccu racies 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 ri ght to make changes to any products d escribed 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 un der 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.

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, th e 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 o peration o f 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.

xE50-433/868 RF Module User Guide

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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 ot her product or service names are the property of their respective owners.

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Contents

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

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

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

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

1.4. Document Organization .............................. 8

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 ................................... 12

2.4. Functional Requirements ......................... 12

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 .................... 14

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

3.5. LE50-868 Functional Characteristics . 16

3.6. ME50-868 Functional Characteristics 19

3.7. Digital Characteristic ................................ 22

3.8. Absolute Maximum Ratings .................... 22

3.9. Ordering Information ............................... 23

4. Technical Description ..................................... 25

4.1. Module Top View (cover side) ................. 25

4.2. Pin-out of the module LE50-868 ........... 26

4.3. Pin-out of the module ME50-868 ........... 27

4.4. Pin-out of the DIP Module ........................ 28

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4.5. Description of the signals ......................... 29

5. Process Information ....................................... 30

5.1. Delivery ........................................................ 30

5.2. Storage ............................................................ 31

5.3. Moisture sensibility .................................... 31

5.4. Additional Precautions .............................. 31

5.5. Soldering pad pattern ................................. 31

5.6. Solder paste .................................................. 32

5.7. PCB pad design ........................................... 33

5.8. PCB pad dimensions ................................. 33

5.9. Placement ..................................................... 34

5.10. Soldering Profile (RoHS Process) ...... 34

6. Board Mounting Recommendation ............. 36

6.1. Electrical environment ............................. 36

6.2. Power supply decoupling on xE50-868

module ...................................................................... 36

6.3. RF layout considerations .......................... 37

6.4. Antenna requirements .............................. 38

Antenna connections on printed circuit boards

6.5. ............................................................................. 38

6.6. xE50-868 Interfacing .............................. 40

7. Annexes .............................................................. 41

7.1. Examples of propagation attenuation ...... 41

7.2. EU Declaration of conformity ................ 42

7.3. Safety Recommendations ........................ 42

8. Glossary ............................................................. 43

9. Document History ........................................... 44

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1. Introduction

1.1. Scope

Scope of this document is to present the features and the application of the Telit xE50-868 radio modules (LE50-868 and ME50-868).

1.2. Audience

This document is intended for developers using Telit xE50-868 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.

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1.4. Document Organization

This document contains the following chapters

“Chapter 1: “Introduction”

provides a scope for this document, target au dience, 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 7: “Annexes” describes examples of propagation attenuation. “Chapter 8: “Safety Recommendations” describes recommendation for proper usage. “Chapter 9: “Glossary” shows acronyms used in the document. “Chapter 10: “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.

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.

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1.6. Related Documents

• [1] EN 300 220-1, EN 300 220-2 v3.1.1, ETSI Standards for SRD,

• [2] ERC Rec 70 -03 version of 13 October 2017

• [3] RoHS 2 Directive 2011/65/EU

• [4] SR Tool User Guide, 1vv0300899

• [5] 2011/829/EU,, 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] Star Network Protocol Stack User Guide, 1vv0300873

• [11] EN 13757-4: 2013 Wireless M-Bus

• [12] Telit_Wireless_M-bus_2013_Part4_User_Guide 1vv0300953

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2. Requirements

2.1. General Requirements

The LE50-868 and ME50-868 (or simply xE50-868) modules are multi-band radio boards, delivering up to 25 mW in the 868 MHz ISM band (unlicensed frequency band).

They are delivered with preloaded protocol stacks:

• LE50-868: “Star Network” Protocol stack

• ME50-868: “Wireless M-Bus Part4:2013” Protocol stack.

LE50-868 and ME50-868 are pin-to-pin compatible with LE and ME modules working at different frequencies.

LE50-868 and ME50-868 are also pin-to-pin compatible with Telit ZE Family (ZigBee PRO stack).

2.2. 868 MHz band

Requirements

The “ERC recommendation 70-03” describes also the different usable sub-bands in the 868 MHz license free band, in terms of bandwidth, maximum power, duty cycle and channel spacing. LE50-868/ME50-868 can operate on Annex 1 bands where “ERC recommendation 70-03” gives the following limitations.

ERC recommendation 70-03

Band

Frequency band

(MHz)

Maximum

radiated power

(mW)

Channel spacing

(kHz)

Duty cycle

(%)

Annex1 g

863.0 – 870.0

=< 100 for 47 or more channels

100

Annex1 g1

868.0 – 868.6

No channel spacing specified

Annex1 g2

868.7 - 869.2

No channel spacing specified

0,1

Annex1 g3

869.4 - 869.65

500

25 (for 1 or more channels)

Annex1 g4

869.7 – 870.0

No channel spacing specified

100

These bands are free to use but the module and the user must res pect some limitations. Most of these restrictions are integrated in the co nception of the module, except the duty cy cle. For example, the 869.400 to 869.650 MHz band is limited to a 10% duty cycle. This means that each module is limited to a total transmit time of 6 minutes per hour.

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

Country

Restriction

Reason/Remark

Band G

Austria

Not Implemented

Planned

Finland Limited Implementation

Audio, video and voice not allowed Planned 2011

Georgia

Not Implemented

Greece

Limited Implementation

to 863-865 MHz

Lithuania Limited implementation

Only 863-868 MHz and duty cycle cannot be increased to 1%

Norway

Not implemented

Russian Federation

Not Implemented

864-865 MHz with max e.r.p 25 mW,

duty cycle 0.1% or LBT. Forbidden to use

at the airports (aerodromes)

Spain

Limited implementation

to the band 863-868 MHz

Sweden

Not Implemented

The Netherlands

Not Implemented

Under study

Ukraine Limited implementation

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

869.2-869.25 MHz

Band G1

Georgia

Not Implemented

Russian Federation

Not Implemented

Ukraine

Not Implemented

e.i.r.p. ≤25 mW

Band G3

Georgia

Not Implemented

Russian Federation

Not Implemented

Ukraine

Not Implemented

Band G4

Finland

Limited implementation

Only 5mW e.r.p. - Planned 2011

Georgia

Not Implemented

Russian Federation

Not Implemented

Ukraine

Not Implemented

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2.3. Other Requirements

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

ME50-868 also complies which EN 13757-4 standards (Wireless M-Bus Part4). Finally, the module complies with the new Eu ropean Directive 2011/75/EU concerning the

Restrictive Usage of Hazardous Substances (Ro HS 2).

2.4. Functional Requirements

The xE50-868 module is a complete solution from serial interface to RF interface. The xE50868 module has a digital part and a RF part. The radio link is a Half-Duplex bi-directional link.

The digital part has the following functionalities:

• Communication interface

• I/O management

• Micro controller with embedded Telit Software Stack

The RF part has the following functionalities:

• Frequency synthesis

• Front-end

• Low noise reception

• Power amplification

• Packet handling

2.5. Software

The xE50-868 module is provided pre-flashed with one of the available Telit in-house Protocol Stack.

Please refer to Protocol Stack User Guides [7] or [12] for detailed information.

2.6. Temperature

Requirements

Minimum

Typical

Maximum

Unit

Operating

Temperature - 40 25 + 85 °C

Relative humidity @ 25°C

20 75 %

Storage

Temperature - 40 25 + 85 °C

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3. General Characteristics

3.1. Mechanical

Characteristics

Size : Rectangular 25.8 x 15 mm

Height : 3 mm

Weight : 1.7 g

PCB thickness: 0.8 mm

Cover :

• Dimensions: 21 x 14.2 x 2.2mm

• Thickness: 200µm

Components : All SMD components, on on e side of the PCB.

Connectors : The terminals allowing conveying I/O signals are LGA

Mounting :

• SMD

• LGA on the 4 external sides

Number of pins : 30

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3.2. Mechanical dimensions

3.3. Recommended Land

pattern

+ 31 hidden pages

Telit Wireless Solutions xE50-868 series, LE50-868, ME50-868 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual