LE51-868 S RF Module User Guide
Contents
1. Soldering pad pattern The surface finished on the printed circuit board pads should be made of Nickel Gold surface The recommended soldering pad layout on the host board for the LE51 868 S is shown in the diagram below E All dimensions in mm The dashed area represents a routing inhibit area 26 8mm x16mm wide CAUTION Exposed test points are present on the bottom side of the module these pads shall not be unconnected In order to prevent the risk of short circuits neither via holes nor traces are allowed under the module as indicated by the dashed area in the picture Solder paste LE51 868 S module is designed for surface mounting using half moon solder joints see diagram below For proper module assembly solder paste must be printed on the target surface of the host board The solder paste should be eutectic and made of 95 5 of SN 4 of Ag and 0 5 of Cu The recommended solder paste height is 180 um The following diagram shows mounting characteristics for ME integration on host PCB gt te f E LO k i gi S d Aba 0 S Ze A y een D be t AP AE E e K 8 9 8 6 Reproduction forbidden without written authorization from Telit Eeer S p A All Rights Reserved lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Metallic shield zolder dot K hos tPCE solder dot module a Placement The LE51 868 S module can be auto2. All Rights Reserved Page 19 of 41 a vey Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 2 Electrical specifications 9 1 Absolute Maximum Ratings Voltage applied to Vcc VDD Voltage applied to TTL Input STOP Danger Stresses beyond the above limits may cause permanent damage to the module 5 2 Functional Characteristics Measured on DIP interface with T 25 C Vdd 3V 50Q impedance and default power register settings if nothing else noted 5 2 1 Temperature Rating Minimum Typical aa g Relative 25C Storage Reproduction forbidden without written authorization from Telit E S p A All Rights Reserved Page 20 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 5 2 2 DC specifications VDD S9nA 30 mA Ou Stand by 32 768 kHz On Characteristics LE51 868 S Sege Digital IO levels Characteristics LE51 868 S I O low level I O high level bd i 4 e Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 21 of 41 T Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 9 2 4 AC specifications 5 2 4 1 Star network mode Data rates from 4 8kbps to 9 6kbps ERC REC70 03 Band g Band g1 1 Band g1 2 Band 1 3 Band 1 4 Frequency MHz 863 000 870 000 868 000 868 600 868 700
3. J16 PROG TTL Signal for serial uC flashing Active high with internal pull down J14 PDI_DATA TTL Program and Debug Interface DATA J11 GND Gnd J10 PDI CLK J9 TTL Program and Debug Interface CLOCK TTL Digital I O N 9 with interrupt I f J2 STANDBY TTL l ETDE STATUS E Signal indicating stand by status RADIO STATUS o Im Signal indicating reception or transmission of radio frame 109 ES J8 IO8_A J7 S if L2 In case you want to use in the same application Telit ZE51 or ZE61 modules J9 and J8 should not be connected since reserved on these modules e i i my Big m eserved Page 16 of 41 e Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 4 3 DIP Interface pinout 2 54 mm 3 5 mm d D O SEH ci OAO I P lt R 3 we gt Ri IB gt P WAKEUP lt 4 a S p3 TxD C gt e P4 RxD HL P5 RESET lt Wa Hp CTs e Wi h RTSO gt e gt VDD PROG lt 1 e D D d D 0 A L wN Page 17 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 4 4 Pinout correspondence table Pinout correspondence between LE51 868 S DIP and LE51 868 S SMD LE51 868 S DIP LE51 868 S SMD W EE ae p o OOO e 1 stanby stats eoe pi osans o o oo ES os ON PDI_DATA PDI_CLK J4 Connector for debugging so ps vo EE RF connection A 50 Q coplanar wave guide SMA Ext_Antenna and a matching
4. wireless solutions Teli LE51 868 S RF Module User Guide 1VV0301131 Rev 1 2014 04 04 emm d aen Ek Making machines talk wireless solutions LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 APPLICABILITY TABLE Reproduction big written authorization from Telit Communications S p A All Rights Reserved Page 2 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 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 pro
5. 2 nW 47 dBm 20 nW Reception Frequency offset of the unwanted y i Minimum offset between wanted Receiver bandwidth signal and unwanted signals 10 kHz 100 kHz Blocking for class 2 equipments 250 kHz 10 kHz 10 MHz 100 kHz 250 kHz Below 1000 MHz Above 1000 MHz 57 dBm 2 nW 47 dBm 20 nW spurious radiation 3 2 3 3 Reproduction forb l lit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Duty cycle limitations in Sigfox mode While acting as a Sigfox gateway the LE51 868 module transmits on a 48 kHz band centered around 868 2MHz at a 100bps baudrate therefore limitations as per Annex 1 band g1 1 apply In order to fulfill the specification requirement regarding duty cycle on ISM band and to be aligned with Sigfox network management the application is allowed to send up to 72 Bytes per hour e g 6 messages of 12 payload bytes each RoHS compliance The module complies with the European Directive 2002 95 EC concerning the Restriction of Hazardous Substances RoHS idden without written authorization from Telit Communications S p A All Rights Reserved Page 14 of 41 4 4 1 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Pin description Module Top View cover side lt wi om a ooa A Oe _ st SC SO SSC OO Oo OO oma DO EF DN O st Ri N wes CH ad wd bad A d e e d L JL JE JE AE d AL JE
6. H mor Comments Schema for sensor connexion Reset Internal Pull Up resistor WWAKEUP Internal Pull Down resistor 1O7_A Logic Input Ouput to Vdd with interrupt IO3_A amp 107_A Analog Input 12 bits precision E d P f T H H vg f b e A D d i 7 CM Bars d gt f f gt NW Ze e wd d 9 f gt 3 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 30 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 7 Mechanical specifications Module Mechanical Characteristics e Dimensions 25 x 14 2 x 2 2mm e Thickness 200um All SMD components on one side of the PCB The terminals allowing conveying I O signals are LGA Mounting Se on the 4 external sides Number of pins The metallic shield used on LE51 868 S covers all the SMD components Gees forbidden without written BEES from Telit Eer S p A All Rights Reserved Page 31 of 41 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 7 2 Mechanical drawings Bottom view E Side view 3 00 2 20 Top view 15 00 14 20 8 00 2 50 Side view L TT Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 32 of 41 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 8 Process inform
7. JL WW TXD J19 r J30 CND RE GND J20 f J29 Est Ant RXD 911 log CND RE RTS J22 7 RESET J23 CTS J24 TI VDD J25 M7 GND J26 GND J27 l P OT E E E IEF P E ar 5399355359593 LI LO a et gt si D Ge 393 IO Q e pi 2 Wor i Peoooooad LIA LO O gt D 5 D q O x Uy Reproduction for CAUTION reserved pins must not be connected CAUTION In case you want to use in the same application Telit ZE5I or ZE61 modules J9 and J8 should not be connected since reserved on these modules see foot notes on Pin Out tables bidden without written authorization from Telit Communications S p A All Rights Reserved Page 15 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 4 2 LE51 868 S pinout Pin Pin name Signal level J29 Ext_Antenna Function RF Ground connection for external antenna RF I O connection to external antenna J28 GND Gnd RF Ground connection for external antenna J27 GND Gnd Ground J26 GND Gnd Ground J25 VDD Digital and Radio part power supply pin J24 CTS TTL Clear To Send J23 RESET TTL uC reset Active low with internal pull up 2 T Request To Send RxD UART Serial Data Reception EN Cl Lei Ge Ge C gt e SS Co NO bi A N Ground 9 Tx Woy S TxD UART Serial Data Transmission J18 WAKEUP TTL Wake up Active high with internal pull down when set to 1 the J S J 5 Gi module is awakened
8. RF Module User Guide 1VV0301131Rev 1 2014 04 04 2 3 Digital Characteristics 128 kB 8 kB in system programmable flash 8 kB RAM 2 kB EPROM RS232 TTL Full Duplex 1200 to 115200 bps 7 or 8 bits Parity management Flow control o Hardware RTS CTS Flexibility o Pre flashed o Customization capability o Download over the air 32 768kHz clock 4 timers e 9 GPIOs available ot R e E z Le i Re EEN VAT Ai RM 0 1 A i y L 2 D d 4 p lea hit R H i E l Lem S ef i bi Di Le gen a at l Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 11 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 3 Applicable regulations The following section summarizes the applicable regulations the LE51 868 is designed to comply to 3 1 868 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 band where ERC recommendation 70 03 gives the following limitations ERC recommendation 70 03 Frequency band Channel spacing Duty cycle MHz Cam mW kHz Annex 863 0 870 0 25 Lee 100 for 47 or more channels Annex ll 8680 8686 25 No channel spacing specified 1 1 Duty cycle may be increased to 1 if t
9. S RF Module User Guide 1VV0301131Rev 1 2014 04 04 6 4 Antenna connections on printed circuit boards Special care must be taken when connecting an antenna or a connector to the module The RF output impedance is 50Q so the strip between the pad and the antenna or connector must be 203 following the tables below Ground lines should be connected to the ground plane with as many vias as possible but not too close to the signal line PCB material PCB thickness H mm Coplanar line W mm Coplanar line G mm O w o d so oo FR4 Table 1 Values for double face PCB with ground plane around and under coplanar wave guide recommended PCB material PCB thickness H mm Coplanar line W mm Coplanar line G mm FR4 Table 2 Values for simple face PCB with ground plane around coplanar wave guide not recommended e s k H i da Bay i emm er d Di E AE Se k e 1 i Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 27 of 41 6 9 ANTI Antenne I69Mmz dx Ge m d G z i Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved 103A K A 105A 106A 107 Ab Da Ke Ab Da Ka LES 868 WNNZANY 1X3 ml 12 13 14 15 16 177 LE51 868 S Interfacing 375v StandBY On Off Micr o s witch Sw2 A ex Prog Flash On Off 3 Micr o awiteh VEC 2
10. __ 868 750 MHz 1 Channel 0 E Ge G 868 100 MHz 2 868 850 MHz 2 _ 869 5250 MHz E ake E 868 300 MHz 3 868 950 MHz 3 Total Bandwidth 600 kHz 500 kHz 250 kHz 300 kHz Transmission GFSK with 10 kHz deviation 1 Modulation GFSK with 20 kHz deviation 2 GFSK with 50 kHz deviation 3 8 levels 8 levels 8 levels 8 levels 6 levels ERC REC70 03 Frequency MHz No requirement from 8dBm to from 8dBm to from 8dBm to from 8dBm to from 8dBm to Sab 14dBm 14dBm 14dBm 14dBm 7dBm max 25 mW Reception 1 Max 113 dBm 1 Max 113 dBm 1 Max 113 dBm 1 Max 112 dBm Sensitivit j 2 Max 109 dBm 2 Max 109 dBm 2 Max 109 dBm 2 Max 109 dBm for PER lt 80 3 Max 104 dBm 3 Max 104 dBm wireless solutions LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 5 2 4 2 Sigfox mode 0 to 19 221 to 259 460 to 480 868 2 MHz D BPSK Sigfox Protocol Up to 30mW 3 0 Volts ron TEE written ahora from Telit Communications S p A AlL Rights Reserved Page 24 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 6 Integration guidelines 6 1 Electrical environment The best performances of the LE51 868 S module are obtained in a clean noise environment Some basic recommendations must be followed e Noisy electronic components serial RS232 DC DC Converter Display Ram buses m
11. 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 YY YY MM DD lon forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 8 of 41 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 1 6 Related Documents er 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 LE51 868 S SW User Guide User Guide 1 vv0301109 8 Star Network Protocol Stack User Guide 1 vv0300873 ton PA z VORA v K Set Mi Ab Wa CS g k e 7 4 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 9 of 41 2 1 2 2 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Product description The LE51 868 S module is a high performance certified short range to long range module designed to cover the 863 870MHz unlicensed band working with Telit propr
12. network d connector Unbalanced RF connect J29 to J3 Pair adc ok enti without written authorization from Telit Communications S p A All Rights Reserved Page 18 of 41 a Tel LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 4 5 Signal description me eseription RESET External hardware reset of the radio module Active on low state Serial link signals format NRZ TTL TXD RXD TXD is for outgoing data RXD is for incoming data The 1 is represented by a high state Incoming signal Indicates whether the module can send serial data to user Active on low state or not inactive on high state Outgoing signal Indicates whether the user can transmit serial data RTS active on low state or not inactive on high state I O configurable as input or as output WAKEUP SE signal which indicates to the module to wake up from low power Output signal which indicates the status of the radio Set to VCC during RADIO STATUS radio transmission or as soon as a radio frame is detected with correct synchronization word The signals returns to GND at the end of transmission or as soon as the frame reception 1s finished STANDBY STATUS The STAND BY STATUS output signal is set to logical 1 while the module is operating and return to 0 during stand by periods r ee af tee d eee ka le s Zeen D et Reproduction enti without written authorization from Telit Communications S p A
13. 869 200 869 400 869 650 869 700 870 000 Global 1 4 8 kbps 2 9 6 Numbers of 60 1 12 1 10 1 1 1 6 1 channels 60 2 12 2 10 2 1 2 6 2 50 kHz 869 725 MHz 300 kHz Transmission No requirement F GFSK with 7 kHz deviation 1 GFSK with 7 kHz deviation S 8 levels 8 levels 8 levels 8 levels 6 levels from 8dBm to from 8dBm to from 8dBm to from 8dBm to from 8dBm to we 14dBm 14dBm 14dBm 14dBm 7dBm max 5 mW Reception Sg OI Max lg dBm Max 2117 d m Max 117 dBm Max 1 dBm Lee Mas 16 d m Sensitivity for PER lt 80 2 Max 114 dBm 2 Max 114 dBm 2 Max 114 dBm 2 Max 114 dBm 2 Max 114 dBm S Gr e z j APP 4 paee lt h S e Lalla gf d me 2 Sais C wm g e d cb EEN Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 22 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Data rates from 19 2kbps to 100 0kbps Band g1 Band g1 1 Band g1 2 Band g1 3 Band g1 4 863 000 868 000 868 600 868 700 869 400 869 700 870 000 869 200 869 650 870 000 Global 1 19 2 kbps RF data rate 2 38 4 kbps 3 100 0 kbps 20 1 6 1 5 1 11 3 1 patina s of 10 2 3 2 2 2 1 2 2 2 LLC ALIS 0 3 1 3 1 8 0 3 0 3 100 kHz 1 100 kHz 1 Channel width Sp Ge 3 200 kHz 2 200 kHz 2 250 kHz n Ge gt 600 kHz 3 500 kHz 3 868 050 MHz 1
14. P e 3 2 LD3 Kyl LG T67K M2Ki 24 Green R21 xa lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 SubD 9 pts C4 Female Connector 22pF COMMENTS LESI 868 reflash possible if switch ProgFlash ON at Power On LD3 blink when LES 868 power on Reset Internal Pull Up resistor VWAKEUP Internal Pull Down resistor See table in chapter IV 2 Pin out of the Module for 10 functionalities To obtain 5 Ohm RF tracks follow recommendations in chapter V1 4 Antenna connection on Printed TUTEIN Page 28 of 41 IW 7 10 LG 107 AD DA 1e_ AD DA ANT3 Antenna I69Mhz R7 on E G c72 4 Comments Schema for typical PC connection Reset Internal Pull Up resistor no connection needed YWAKEUP Internal Pull Down resistor no connection needed d Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 29 of 41 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 SubD 9 pts CIO Female Connector 22pF SP3223EEA L 375V lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 2pt Straight 2xAA type batteries for supply VDD i Temperature sensor example R2 Jeo Jere DI LM4 4ICING 1 2 223 v YNNSLINW LxS Example user Panic button R4 Swi 33 Push Button ANT2 p i 92 Ri Antenna H
15. 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 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 Product Description gives an overview of the module s characteristics Chapter 3 Applicable regulations summarizes limitations imposed by applicable standards Chapter 4 Pin description describes the module s pinout 1 9 Reproduct Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Chapter 5 Electrical specifications details the LE51 868 S electrical characteristics Chapter 6 Integration guidelines provide suggestions for developing customer applications based on LE51 868 S Chapter 7 Mechanical specifications detail the mechanical dimensions of the module Chapter 8 Process information describes handling and mounting requirements Chapter 9 Ordering information lists available products and ordering codes 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
16. are 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 Copyright Telit Communications S p A 2014 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 4 of 41 T Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Contents 1 OAU O WEE 7 1 1 OD a E E S 7 Pye PNM e E 7 EC Reietecte dree acte EE ee E 7 1 4 Document Oro Zl ON ME 7 Le IK ee E ei CC 8 1 6 FRG tC COC UCI E 9 2 Product Oese d EE 10 Sc Wie 10 Dad EE 10 G Digital Ee eege e 11 3 Appucable regul
17. ation 8 1 Delivery LE51 868 S modules are delivered in plastic tray packaging each tray including 50 units The dimensions of the tray are the following 329 mm x 176 mm x 5 6 mm Each unit is placed in a 26 6 mm x 16 mm location An empty tray weights 45 g and a loaded tray weights around 130 g OH DETI 8 2 Storage The optimal storage environment for LE51 868 S modules should be dust free dry and the temperature should be included between 40 C and 85 C DM oe d a E a z gl i si 4 D r 7 6 v j f Wr 1 La f At a ry A NK A a merz 2 t me e j H yo f K TTEN Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 33 of 41 8 3 8 4 Reproduct lon forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 34 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 In case of a reflow soldering process LE51 868 S radio modules must be submitted to a drying bake at 60 C during 24 hours The drying bake must be used prior to the reflow soldering process in order to prevent a popcorn effect After being submitted to the drying bake LE modules must be soldered on host boards within 168 hours Also it must be noted that due to some components LE51 868 S modules are ESD sensitive device Therefore ESD handling precautions should be carefully observed
18. ations auiis sae ceneccce eee ecmnsnctcesedserapenscandaunincapcenastaodsuseneeaeindicuareds 12 SR Ste Keiler ef e an 12 3 1 1 Summary of ETSI EN Z20VZ3lreouremente EE 13 CA Duty cycle limitations in SIGfOX mode 14 3 3 KORO COMPUINCO ee E E E E 14 4 FIRM SS rhel ier E r E 15 4 1 Module Top View Cover adel 15 4 2 LE91 868 SPIN e 16 4 3 DIP Interface PIMOUL cc ccccccccccccceeesseeceeeeeceaeseseeeeecseeaseeeeeseesaueasuseesesaueageeeeesaeaags 17 4 4 Pinout correspondence 1D isis scecine coc casiavnonretcchmsn sendebsottedawanedcetecwanacnscuyeseemadie tseuunces 18 SE EE eege 19 J Electrical specificationS ccc ccccc cece cee ec sence ecececececeeaeeeceseceeeeeegeaesececeeeegeaeseneees 20 Dall Absolute Maximum RatingS ccccccccceceesseeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeseeaaeeeeeeeseaaaeeeees 20 O52 Functional Characteristics o c ccoceccvsncanwusasesaubaenaunicechaddiedusaennerecensuudencudoensiossendaccassdetaes 20 9 2 1 temperature Rati g eessen iE E RENEE 20 TPA MISE 21 0 29 Digitalt IO Evol ea e o o E E 21 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 5 2 4 PAS DOCCIA O EE 22 6 Integration guidelines 5 25 cch cece Eeer 29 6 1 USCC ak SVT Ol MVNA EE 25 6 2 Power supply decoupling on LE91 868 S module 25 6 3 Rie MV OE COR SIAC e EE 26 6 4 Antenna connections on printed circuit boardS ccecccsssssseseeeesceeaaeeseeessaeeeesees 27 ES e EE 28 7 Mechanical Specif
19. gramming 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 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 med
20. he use of this product may be dangerous and has to be avoided in the following areas e Where it can interfere with other electronic devices in environments such as hospitals airports aircrafts etc e Where there is risk of explosion such as gasoline stations oil refineries etc It is responsibility of the user to enforce the country regulation and the specific environment regulation Do not disassemble the product any mark of tampering will compromise the warranty validity We recommend following the instructions of the hardware user guides for a correct wiring of the product The product has to be supplied with a stabilized voltage source and the wiring has to be conforming to the security and fire prevention regulations The product has to be handled with care avoiding any contact with the pins because electrostatic discharges may damage the product itself Same cautions have to be taken for the SIM checking carefully the instruction for its use Do not insert or remove the SIM when the product is in power saving mode The system integrator is responsible of the functioning of the final product therefore care has to be taken to the external components of the module as well as of any project or installation issue because the risk of disturbing the GSM network or external devices or having impact on the security Should there be any doubt please refer to the technical documentation and the regulations in force Every module has to be equip
21. he band is limited to 865MHz to 868MHz Most of these restrictions are integrated in the conception of the module except the duty cycle 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 Compliance to these limits is left to the user Reproduction forbidden without written authorization from Telit E S p A All Rights Reserved Page 12 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 3 1 1 Summary of ETSI EN 220 V2 4 1 requirements The LE51 868 module complies with the Harmonized Standard ETSI EN 220 V2 4 1 whose main requirements are summarized in the following table ETSI EN 300 220 V2 4 1 F 12 5 kHz 25 kHz channelization TEMUS eer 87 kHz 100 ppm gt 25 kHz channelization ACP 37 dBm in 16 kHz BW under normal test conditions 32 dBm in 16 kHz BW under extreme test conditions Reference Bandwidth Lower envelope point Upper envelope point RBW Minimum frequency maximum frequency 30 dBm 1 pW Modulation 1 kH f 200 kH f 200 kH bandwidth S e lower Z e upper Z 36 dBm 250 nW Frequency 47 MHz to 74 MHz 7 5 Other frequencies below Frequencies above 1 000 MHz to 118 MHz 174 1 000 MHz Unwanted MHz to 230 MHz 470 emissions in the MHz to 862 MHz spurious domain 54 dBm 4 nW 36 dBm 250 nW 30 dBm 1 pW Standby 57 dBm 2 nW 57 dBm
22. ia 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 orization from Telit Communications S p A All Rights Reserved Page 3 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 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 softw
23. ications cccccccececececeececececececuececesececeeusascecesecusaruseseseees 31 7 1 Module Mechanical Characteristics ccxcicecaaientpiannnsincceadeybluasaodsawnedicninepanisendeucheauevsee 31 l Wee Bee eee eee eee ne ee e A 32 8 Proce SS TOR Wel O EE 33 8 1 leegen 33 8 2 SL et TE ES 8 3 Seege e Reeg O E 34 8 4 E EE 34 8 9 PVCS EE 32 8 6 Soldering Profile RoHS Drocessl 35 9 Ordering WTOP NO EEN 37 10 Safety RECOMIMOENGAUIONS sigcincceesscetsccs Deh EN Eed eege 39 K EN GO E 40 UZ DOCUMENE TIS COE Y E 41 1 1 1 1 2 1 3 1 4 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Introduction Scope Scope of this document is to present the features and the application of the Telit LE51 868 S radio modules Audience This document is intended for developers using Telit LE51 868 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
24. ietary Star Network protocol and additionally being able to act as a certified Sigfox gateway It is delivered with preloaded protocol stack e LES51 868 S SIGFOX Network Software e Star Network Protocol stack LE51 868 S is over the air compatible with LE50 868 modules using Telit Star Network protocol the only difference being the highest baudrate attainable as detailed in 2 2 LES51 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 Main features The LE51 868 S module is a complete solution from serial interface to RF interface The LES 1 868 module has a digital part and a RF part The radio link on Sigfox network is a Half Duplex bidirectional link The digital part has the following functionalities e Communication interface e I O management e Micro controller with embedded Telit Software Stack supporting Sigfox protocol The RF part has the following functionalities e Frequency synthesis e Front end e Power amplification e Packet handling Software The LE51 868 S is compatible to LE50 868 modules except for the highest baudrate available which is limited to 100kbps instead of 115 2kbps Please refer to LE5 868 SW User Guide 7 and to Star Network protocol User Guide 8 for detailed information on the preflashed firmware wireless solutions LE51 868 S
25. matically placed on host boards by pick and place machines like any integrated circuit Soldering Profile RoHS Process The LE51 868 S module should not be allowed to be hanging upside down during the reflow operation This means that the module has to be assembled on the side of the printed circuit board that is soldered last The recommendation for lead free solder reflow in IPC JEDEC J STD 020D Standard should be followed a Page 35 of 41 Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Profile Feature Sn Pb Eutectic Assembly Pb Free Assembly 3Cisecond max 3 C second max Preheat Temperature Min Ts min 100 C 150 C Temperature Max Ts max 150 C 200 C Time is min to ts max 60 120 seconds 60 120 seconds Time maintained above ett TL 183 C 221 C 35 90 seconds 45 90 seconds Peak Classifi cation Temperature Tp max Peak Temp 225 C max Peak Temp 260 C Time within 5 C of actual Peak 10 30 seconds 10 seconds 4 Cisecond max Time 25 C to Peak Temperature 235 C 10sec Note 1 All temperatures refer to topside of the package measured on the package n surface Critical Zone F con Tr INIRE TEPEE DAE EE Tec eet er eye ee Temperature gt Preheat Time gt The barcode label located on the module shield is able to withstand the reflow temperature CAUTION It must be noted that if the host board is submit
26. munication Standard Institute Gaussian Frequency Shift Keying Input Industrial Scientific and Medical KiloByte Kilobits per second Kilochips per second Kilo Hertz Listen Before Talk Land Grid Array Mega Hertz milliwatt Output Packet Error Rate Parts per million Random Access Memory Radio Frequency Restriction of Hazardous Substances Receive Data Surface Mounted Device Short Range Device Transmit Data Universal Asynchronous Receiver Transmitter microcontroller ion forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 40 of 41 lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 12 Document History Changes 0 2013 12 20 Preliminary release 1 2014 04 04 Document structure update consumption and sensitivity data inserted m d E Es ei Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 41 of 41
27. ped with a proper antenna with specific characteristics The antenna has to be installed with care in order to avoid any interference with other electronic devices and has to guarantee a minimum distance from the body 20 cm In case of this requirement cannot be satisfied the system integrator has to assess the final product against the SAR regulation The European Community provides some Directives for the electronic equipments introduced on the market All the relevant information s are available on the European Community website http ec europa eu enterprise sectors rtte documents The text of the Directive 99 05 regarding telecommunication equipments is available while the applicable Directives Low Voltage and EMC are available at http ec europa eu enterprise sectors electrical gs Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 39 of 41 Glossary ACP AFA bps BPSK BW dB dBm E PROM e r p ETSI GFSK ISM kB kbps keps kHz LBT LGA MHz mW PER ppm RAM RoHS RxD SMD SRD TxD UART uC Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Adjacent Channel Power Adaptive Frequency Agility Bits per second Binary Phase Shift Keying Bandwidth Decibel Power level in decibel milliwatt 10 log P 1mW Electrically Erasable Programmable Read Only Memory Effective radiated power European Telecom
28. ted to a wave soldering after the reflow operation a solder mask must be used in order to protect the LE51 868 S radio module s metal shield from being in contact with the solder wave Reproduction forbidden without written authorization from Telit n E S p A All Rights Reserved Page 36 of 41 Reproduction forb lel it LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 Ordering information The following equipments can be ordered e The SMD version LE51 868 S e The DIP interface version LE51 868 S e The Demo Unit LE51 868 S composed by 1 evaluation boards 1 DIP interface boards 1 RF antenna 1 serial cable and a battery The versions below are considered standard and should be readily available For other versions please contact Telit Please make sure to give the complete part number when ordering idden without written authorization from Telit Communications S p A All Rights Reserved Page 37 of 41 wireless solutions LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 SMD Version DIP Version Demo Unit Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 38 of 41 CS Ee y weg Telit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 10 Safety Recommendations READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required T
29. ust be placed as far as possible from the LE51 868 S module e Switching components circuits especially RS 232 TTL interface circuit power supply must be decoupled with a 100 uF tantalum capacitor And the decoupling capacitor must be as close as possible to the noisy chip 6 2 Power supply decoupling on LE51 868 S module The power supply of LE51 868 S module must be nearby decoupled A LC filter must be placed as close as possible to the radio module power supply pin VDD Power Supply O Vaa orization from Telit Communications S p A All Rights Reserved Page 25 of 41 l lit LE51 868 S RF Module User Guide 1VV0301131Rev 1 2014 04 04 6 3 RF layout considerations Basic recommendations must be followed to achieve a good RF layout e tis recommended to fill all unused PCB area around the module with ground plane e The radio module ground pin must be connected to solid ground plane e Ifthe ground plane is on the bottom side a via plated hole must be used in front of each ground pad Especially J28 and J30 RF Gnd pins should be grounded by means of several holes to be located right next to the pins thus minimizing inductance and preventing mismatch and losses Ground vias E oe aa te a pp ag pg pp ag TTT FF FE SS SS aa e eg gp a a a E E F f s Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 26 of 41 Telit LE51 868
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