LT70-868 Terminal User Guide
Contents
1. 19 IV 2 CONNECTION TO RS422 OR RS485 INTERFACE 2 20 IV 3 TERMINAL REFLASHING bt d E ete 21 IV 4 ETSI 300 220 2 VERSION 2 4 1 STANDARDS SUMMARY 4202020 22 IV 5s DECLARATIONS OF COMPEIANOE tette terre on ve v Avid on 24 1558 Reproduction forbidden without Telit Communications 5 written authorization All Rights Reserved page 4 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 CHAPTER I INTRODUCTION 1 1 Aim of the Document The aim of this document is to present the Hardware features and the application of LT70 868 radio terminal The characteristics will be described within three distinct chapters General characteristics describes the electrical and mechanical characteristics Mechanics and connections details the casing connector cabling and power supply The Software functionalities are described in the reference document 5 listing the operating modes registers and their use 1 2 Reference documents 1 EN 300 220 2 v2 4 1 ETSI Standards for SRD May 2012 2 ERC Rec 70 03 ERC Rec2. 5 8 TI 1 GENERAL REQUIREMENTS o Reo n Ein nit ret n ecd E HU e ef aL tie treten eden 8 11 2 TEMPERATURE CHARACTERISTIOS uuu ee pir Ete dene ir ce P HERE 9 II 3 MECHANICAL CHARACTERISTICS 9 ILIA DO CHARACTERISTICS E 9 1I 5 F NCTIONAE CHARACTERISTICS aed 10 11 6 DIGITAL CHARACTERISTICS L Re et cC ve Ee erede ge edet 13 IE 7 ORDERING INFORMATION din eie dli ea ant hind 13 M8 ACCESSORIES ierit asiyka DIRE 13 CHAPTER Ill MECHANICS AND 88 14 TIT 1 MECHANICAL CHARACTERISTICS REM 14 111 2 CONNECTIONS SS iren e HE a RE Ere reda le UH T UR iulia re E ae 15 JI 3 CABLES DESCRIPTION miU DRE inia p T 17 IV Bic 19 IV 1 TERMINALS INSTALLATION 5 4 0
3. Data TxD Transmit Data CTS Clear To Send RTS Request To Send 3 RTS Request To Send Yellow CTS Clear To Send 8 o 5 DTR Data Terminal Ready DTR Data Terminal Ready Connector Name Color Name 8 points Terminal Side Side RS232 422 485 Open Gnd ground Gnd ground 8 Vcc 6 to 40V Red Vcc 6 to 40V H d nr NN ub NE Gat TEC lt 5 UT H lt j 4 m as E Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 17 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 Case of RS 422 485 FULL DUPLEX Connector Name 8 points Terminal Side ss 8 Vcc 6 to 40V Red Vcc 6 to 40V Case of the RS 485 HALF DUPLEX Color Automate Side 8 points Terminal Side Corot Automate Side x 2 me Wwe ee 3 pe pem e 3 euer Rem s pm ee je 9 emma oe os s eee na 007 Connector Name 4 P TEC 7 4 ff vA E Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 18 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 CHAPTER IV ANNEXES IV 1 Terminals Installation Principles and cautions gt You must use the power supply and serial cable provide
4. of the Minimum offset between unwanted signal wanted and unwanted signals 2 MHz EE 7 om MM equipments ON 122 kHz Below 1000 MHz Above 1000 MHz Spurious radiation 57 dBm 2 nW 47 dBm 20 nW al m mas h page 22 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 Examples of propagation attenuation 433 MHz 868 MHz 2 4 GHz Factor Loss Attenuation Loss Attenuation Loss Attenuation Open office 0 0 dB 0 0 dB Window lt 5 1dB 15 1 2dB Thin wall plaster 25 96 3 dB 35 96 3 4dB Medium wall wood 40 96 4 6dB 50 5 8 Thick wall concrete 50 96 5 8dB 60 96 9 11 dB Armoured wall reinforced concrete 70 96 10 12 dB 80 96 12 15 dB Floor or ceiling 50 96 5 8 60 9 11 dB Armoured floor or ceiling 70 96 10 12 dB 80 96 12 15 dB Rain and or Fog 90 96 20 25 dB 95 96 25 30 dB Attenuations increase along with the frequency In some cases it is therefore difficult to determine loss and attenuation value Note The table above is only indicative The real values will depend on the installation environment itself SN WEM scrub IR Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 23 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 IV 5 Declarations of Complia
5. the terminal complies with the ETSI 300 220 2 v2 4 1 specific for SRD The main requirements are described in chapter IV 3 Finally the terminal complies with the new European Directive 2002 95 EC concerning the Restrictive Usage of Hazardous Substances RoHS National Restrictions for non specific SR devices Annex 1 band 3 Country Restriction Reason Remark Band g3 Georgia Not implemented Russian Federation Not implemented Ukraine Not implemented page 8 of 24 d e Telit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 II 2 Temperature Characteristics Typical Maximum Unit Operating Temperature 40 25 85 C Relative humidity 20 75 96 Storage Temperature 40 25 85 Relative humidity 0 95 II 3 Mechanical Characteristics Characteristics Unit Connection using terminal blocks inside the casing Exit onnectors through cable gland Dimensions Box 100x66x47 mm Antenna length fm e Removable antenna version 90 LEDs No LEDs are available II 4 DC Characteristics Characteristics 6V 12V 40V Unit Transmission consumption 500mW 100mW 25mW 210 TBD TBD 105 TBD TBD 32 TBD TBD mA Reception consumption 16 8 lt 3 mA Stand by consumption lt 2 lt 1 lt 0 3 uA Typical not misured Reproduction forbi
6. From 15 dBm to 427dBm Reception Rx filter BW 15KHz Sensitivity dBm for PER lt 0 8 115 117 116 Ch1 Ch5 Ch10 1 10 0 77 E A 5 3 4 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 11 of 24 LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 10 200 kHz 865 1 MHz 2 MHz 2GESK KHZ 7 kHz 10 kHz 20 kHz 2 5 kHz Selectable by software From 15 dBm to 27dBm 20 kHz 27 kHz 44 kHz 81 kHz 117 x 115 x 113 110 Reproduction forbidden without Telit Gariniusieatians 5 A written authorization All Rights Reserved page 12 of 24 Te lit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 11 6 Digital Characteristics Function Characteristics uC 128 kB 8 kB in system programmable flash 8 kB RAM 2 kB EPROM Serial link RS232 TTL Full Duplex 1200 to 115200 bps 7 or 8 bits Parity management Flow control o Hardware RTS CTS Embedded software functionality Flexibility o Pre flashed o Customization capability o Embedded bootloader for firmware download through serial link or over the air II 7 Ordering information The appropriate Telit part number you need to order LT868 Terminal is 3990150524 11 8 Accessories The LT868 Terminal box could be integrated with two wall
7. HL e leli wireless solutions LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 M 6 E wad lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 This document is related to the following product PRODUCT Reproduction forbidden without Telit Communications 5 written authorization All Rights Reserved page 2 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 DISCLAIMER The information contained in this document is the proprietary information of Telit Communications S p A and its affiliates TELIT The contents are confidential and any disclosure to persons other than the officers employees agents or subcontractors of the owner or licensee of this document without the prior written consent of Telit is strictly prohibited Telit makes every effort to ensure the quality of the information it makes available Notwithstanding the foregoing Telit does not make any warranty as to the information contained herein and does not accept any liability for any injury loss or damage of any kind incurred by use of or reliance upon the information Telit disclaims any and all responsibility for the application of the devices characterized in this document and notes that the application of the device must comply with the safety standards of the applicable country and where applicable with the relevant wiring rule
8. ch off the power supply open the casing put the PROG switch on ON position and switch on the power supply Refer to its SR Manager Tool User Guide 6 for detailed explanation page 21 of 24 Telit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 IV 4 ETSI 300 220 2 Version 2 4 1 standards summary Limits allowed by ETSI standard Transmission F 12 5 kHz 25 kHz channelization EER 87 kHz 100 ppm gt 25 kHz channelization ACP for channels 37 dBm in 16 kHz receiver filter BW under normal test conditions 25 kHz 32 dBmin 16 kHz receiver filter BW under extreme test conditions Reference Limit Lower envelope Upper envelope Bandwidth RBW point point Minimum frequency maximum frequency 1 kHz x 30 dBm 1 uW f lower fe upper Modulation 1 kHz 36 dBm 250 5 2 200 kHz f upper 200 kHz bandwidth nW 10 kHz 36 dBm 250 fe ower 400 KHz fe upper 400 KHz nW 100 kHz 36 dBm 250 fe ower 1 MHz fe upper 1 MHz nW Frequency 47 MHz to 74 MHz Other frequencies Frequencies above 7 5 MHz to 118 MHz below 1 000 MHz Unwanted vvv 174 MHz to 230 MHz emissions the State 470 MHz to 862 MHz Operating 54dBm 4nW 36 dBm 250 nW 30 dBm 1 uW Standby 57 dBm 2 nW 57 dBm 2 nW 47 dBm 20 nW Reception Frequency offset
9. d by Telit with the terminal Take care of the polarity for the power supply connection red wire Vcc black wire GND gt The ON OFF switching capability of the power supply is external to the terminal gt The radio environment should be closely studied prior to any installation with a spectrum analyzer in order to determine whether and where the installation will be optimal In case of outdoor installations IP casings are recommended gt Incase of a ceiling installation the terminal should be mounted upside down for a better radiation gt 1 distance between two terminals should be respected under 25mW power output at least 2 m at 100mW and 3m at 500mW The terminals should be located as high and as free as possible so that a line of sight propagation is established between terminals gt The terminal should not be surrounded by metallic masses because of the disturbances caused by a reflection phenomena The electrical disturbances can come from various sources and should be avoided o Engines o High current devices o Power relays transformers o Ete gt The radio disturbances should also be avoided o System in the same frequency band such as cars remote control systems o Systems in a nearby frequency band such as high power 2 W talkie walkie systems Vibrations and or shocks can also be source of disturbances It is therefore advised to mount the terminals in silent blocks in order to stabil
10. dden without Telit S p A written authorization All Rights Reserved page 9 of 24 Telit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 II 5 Functional characteristics ERC Rec 70 03 Band g3 869 400 MHz 869 650 MHz Frequency Band RF data rate 1 2 kbps 2 4kbps 4 8kbps 9 6 kbps 19 2 kbps 38 4 kbps 57 6 kbps Numbers of channels 1 Channel width 250 kHz Channel 0 869 525 MHz Total Bandwidth 250 kHz Transmission Duty cycle lt 10 Modulation Format 2GFSK Deviation 06kHz 482 7 kHz 7 kHz 10kHz 20kHz 30 kHz ed tolerance 4 2 5 kHz From 15 dBm to 27dBm Reception Rx filter BW 20kHz 20kHz 20 kHz 27 kHz 44 kHz 81 kHz 122 kHz Sensitivity TBD TBD 117dBm 115dBm 113dBm 110 dBm 108dBm Telit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 ERC Rec 70 03 Band g3 869 400 MHz 869 650 MHz Frequency Band RF data rate 1 2 kbps 2 4kbps 48 kbps 9 6 kbps 19 2 kbps 38 4 kbps 57 6 kbps Numbers of channels 1 Channel width 250 kHz Channel 0 869 525 MHz Total Bandwidth 250 kHz Transmission Duty cycle lt 10 Modulation Format 2GFSK Deviation 0 6kHz 512 7 7 kHz 10kHz 20kHz 30 kHz tolerance TENURE E ZZ d
11. fastening lugs FIBOX MRS 28540 product number 7028540 page 13 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 CHAPTER III MECHANICS AND CONNECTION III 1 Mechanical Characteristics 67 Casing Mechanical Drawings 2 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 14 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 III 2 Connections The terminal will communicate with the host through a cable connected to a matching connector on the mother board inside the casing yellow part on the following drawing KOD gt TxD RxD Serial link signals in RS232 format TxD is for the data going out of the Terminal while RxD is for the data coming into the Terminal The logic 1 is represented by signal between 3 and 15V CTS Clear To Send signal into the Terminal Indicates if the Terminal can send serial data to the User Active on 0 3V to 15V or not Inactive on 1 15V to 3V gt RTS Request To Send signal going out of the Terminal Indicates that the user can transmit serial data Active on 0 3V to 15V or not Inactive on 1 15V to 3V gt DTR Stand By signal into the Terminal Switches the Terminal in Low Power Mode 1 15V to 3V or in No
12. ize it whenever necessary Distances obstacles and weather conditions can strongly affect radio communications and cause disturbances as well as communication breakdowns me Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 19 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 IV 2 Connection to a RS422 or RS485 interface LT70 868 terminal is configured in RS232 mode by default 821520 it allows connect it directly on a PC serial port To configure the terminal RS422 or 5485 mode Go to Hayes Mode and configure S215 Register setto 1 for RS422 Setto 2 for RS485 Half Duplex set to 3 for RS485 Full Duplex Power Off the terminal Connect RS485 or RS422 serial link to the terminal Connect RS232 485 pin to GND or set RS232 485 switch to RS485 side T Bi mg oe 4 H Power the terminal N B if you power off the board and set RS232 485 pin open RS485 RS422 is inactivate and RS232 is activate Reproduction forbidden without Telit Communications 5 written authorization All Rights Reserved page 20 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 IV 3 Terminal reflashing LT70 868 terminals are re flashable through the serial link In order to re flash the terminal swit
13. lifier MHz Mega Hertz 1 MHz 1000 kHz PLL Phase Lock Loop PROM Programmable Read Only Memory NRZ Non return to Zero RF Radio Frequency RoHS Restriction of Hazardous Substances RSSI Receive Strength Signal Indicator Rx Reception SRD Short Range Device Tx Transmission SMD Surface Mounted Device VCO Voltage Controlled Oscillator VCTCXO Voltage Controlled and Temperature Compensated Crystal Oscillator page 7 of 24 Te lit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 CHAPTER II GENERAL CHARACTERISTICS II 1 General Requirements The LT70 868 terminal is a multi channel radio terminal delivering up to 500mW in the 868MHz ISM band unlicensed frequency band It allows point to point multipoint or mesh functioning modes The ERC recommendation 70 03 describes the different usable sub bands in the 868MHz license free band in terms of bandwidth maximum power duty cycle and channel spacing It gives the following limitations ERC recommendation 70 03 Band Frequency band Maximum radiated Channel spacing Duty cycle MHz power mW KHz 1 93 869 4 869 65 500 25 or wideband 10 This band is free to use but the terminal and the user must respect the 10 duty cycle limitation This means that each terminal is limited to a total transmit time of 6 minutes per hour It is the responsibility of the user to respect it Furthermore
14. nce TBD T E ad id N 4 M E m X ent f amp gt 5 P j mem 2 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 24 of 24
15. ommendation for SRD October 2012 3 2002 95 EC Directive of the European Parliament and of the Council 27 January 2003 4 LE70 868 module User Manual 1vv0301037_Telit_xE70_868 RF Module User Guide 5 Star Network Protocol User Manual 1vv0300873 Telit Star Network Protocol Stack User Guide 6 SR Manager Tool User Guide 1 0300899 Telit SR Manager Tool User Guide page 5 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 I 3 Document change log Revision Date Changes ISSUE 0 24 10 13 First Release B gt amp ii 9 2 74 1 i E E 2 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 6 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 1 4 Glossary ACP Adjacent Channel Power BER Bit Error Rate Bits s Bits per second 1000 bits s 1Kbps CER Character Error Rate dBm Power level in decibel milliwatt 10 log P 1mW EMC Electro Magnetic Compatibility EPROM Electrical Programmable Read Only Memory ETR ETSI Technical Report ETSI European Telecommunication Standard Institute FM Frequency Modulation FSK Audio Frequency Shift Keying GFSK Gaussian Frequency Shift Keying GMSK Gaussian Minimum Shift Keying IF Intermediary Frequency ISM Industrial Scientific and Medical kbps kilobits s LBT Listen Before Talk LNA Low Noise Amp
16. rmal Mode 0 3V to 15V gt RS232 485 Used with the S215 Register selects the type of serial link open for RS232 default internal pull up 100 GND for RS422 or RS485 Can be also made by RS232 485 switch gt Z RS422 RS485 signals For RS422 use A or Rx B or Rx Y or Tx and Z or Tx For RS485 use only A or D and B or D forbidden without Telit Communications 5 written authorization All Rights Reserved page 15 of 24 lelit LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 gt 6 40V 6 to 40 VDC power supply There is no internal ON OFF switch for the power supply The switch off capability should be external Internal LED Green Led it is switch on when the terminal is transmitting data Red Led it is switch on when the terminal is receiving data Ls i Reproduction forbidden without Telit Communications 5 written authorization All Rights Reserved page 16 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 III 3 Cables Description The associated cable is connected to the matching connector of the mother board and goes out of the terminal through a cable gland The cable must be shielded and have an external diameter between 3 5 and 7mm The conductors must have a cross section of 0 22mm 24AWG e Case of RS 232 Connector Sub D 9 points TxD Transmit Data RxD Receive Data 2 RxD Receive
17. s Telit reserves the right to make modifications additions and deletions to this document due to typographical errors inaccurate information or improvements to programs and or equipment at any time and without notice Such changes will nevertheless be incorporated into new editions of this document Copyright Transmittal reproduction dissemination and or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited Offenders will be held liable for payment of damages All rights are reserved Copyright Telit Communications S p A 2013 T 4 ha N ys t z 2 4 g D A No m 1 4 f de s Los j s Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 3 of 24 el It LT70 868 Terminal User Guide 1VV0301096 Rev 0 24 10 2013 CONTENTS CHAPTER LINTRODUCTION U uu u m 5 AIM OFTHE DOCUMENT obiret Fem dative 5 1 2 DOCUMENTS aan f eI MEL MEMINI A M IE 5 1 3 DOCUMENT CHANGE diede am ede miei egets ic auis tei der eire uei Ex e T 6 TA GUOSSARY 7 CHAPTER Il GENERAL
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