GT863-PY Harware User Guide
Contents
1. e the type of antenna for example circular or directional e the placement of the antenna e communication disturbances in the vicinity in which the antenna operates In the sections below issues concerning antenna type antenna placement antenna cable and possible communication disturbances are addressed In any event you should contact your local antenna manufacturer for additional information concerning antenna type cables connectors antenna placement and the surrounding area You should also determine whether the antenna needs to be grounded or not Your local antenna manufacturer might be able to design a special antenna suitable for your application 5 1 1 Antenna type Make sure that you choose the right type of antenna for the modem Consider the following requirements e the antenna must be designed for the one of the frequency bands in use please ask your network provider for more information e GSM 850 900 MHz e GSM 1800 1900 MHz e the impedance of the antenna and antenna cable must be 500 e the antenna output power handling must be a minimum of 2W e the VSWR value should be less than 3 1 to avoid any damage to the modem 5 1 2 Antenna placement The antenna should be placed away from electronic devices or other antennas The recommended minimum distance between adjacent antennas operating in a similar radio frequency band is at least 50cm If signal strength is weak it is useful to face a directional antenna at2. C e All cables connected to the GT864 QUAD PY Terminal must be secured or clamped immediately adjacent to the modem s connectors to provide strain relief and to avoid transmitting excessive vibration to the modem in the installation e Ensure the d c cable supplying power to the GT864 QUAD PY Terminal does not exceed 3 metres e To protect power supply cables and meet the fire safety requirements when the unit is powered from a battery or a high current supply connect a fast 1 25A fuse in line with the positive supply e Do not connect any incompatible component or product to the GT864 QUAD PY Terminal 7 2 SIM card precautions Before handling the SIM card in your application ensure that you are not charged with static electricity Use proper precautions to avoid electrostatic discharges e When the SIM card hatch is opened the SIM card connectors lie exposed under the SIM card holder Caution Do not touch these connectors If you do you may release an electrical discharge that could damage the modem or the SIM card Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 e When designing your application the SIM card s accessibility should be taken into account We always recommend that you have the SIM card protected by a PIN code This will ensure that the SIM card cannot be used by an unauthorized person 7 3 Antenna precautions If the antenna is to be mounted outside consider the risk of lig
3. ECHCUGH LER sssr EUN OR ARAB VU ES UU DCN Il 3E 0000 emer ecc 14 5 1 General IA 14 a a Antenna type iei eerte eere er eee ee hee Free Pe Ye C PEE Eee RC E E eee v lo e aree A 14 S12 Antenna placement einen n C RH senda BIDA i e eei eL e Ceci ted 14 S121 Theantenna cable rane eem er RR n REED HE Ire ead 15 512 2 Antenna Connector iie iieri erect tr ree reni INANG GANAN 15 O Serial PO eee e M o 16 6 1 1 RS232 standard interface conector osse eon REOR EGRE DIRINGGIN 16 7 dufety OH PROUNGE CUTE Rp ieri eR CHORO NECI BAGAN N EDU ELE FE DSe Sresi Reses FOE RENTE UR LEA RR dd 17 7 1 edusciBoseciiire e 17 7 2 SIM Card precautions wisissccsiseessocssssessssseessoossssoessennssectessososssonssssnissosnessonsssaabssesosssoesesocassasnss sossesceeasoonsis 17 7 3 Antenna precautions nG AGA KGEE AKNG GA GSEGEKENA GAGA 18 Installation of the n2 er ORC 19 8 1 Where to install the MODEM Lasa 19 8 2 How to install the modem csscsseesssssosscsesssenssessossocecsconteesuonsetecscoeseossennatess soobeasesouseessseovensssoesessaseens 20 8 amp Powers pply ionge ee HERE UE EH OR ERE HERI E EE GRE E EL e E a E RES EERS 20 8 22 Secumng the modem nob iie HH HS IER RE EAEE ER E ERRER EA EEEE cubis E de aerate 20 9 SAFETY RECOMMANDATIONS naaa Fia das Roi EeKR
4. adea aEES nuapana ina ama anas 21 IU Conformity Assessment ISSUES anG KNINA DIANA KANNADA AGGA 22 TI Do c me nt Chanje LAP AGA AA GAGA 23 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 3 of 23 Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 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 rules Telit reserves the right to make modifications additions and deletions to this document due to typographical errors inaccurate info
5. head screws I KI z E A d rg AG a 4 a 4 T 7 A eT qa q d E Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 20 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 9 SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required The use of this product may be dangerous and has to be avoided in the following areas Where it can interfere with other electronic devices in environments such as hospitals airports aircrafts etc Q 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 powe
6. than 2 5 1 Output Power Watt peak Class 4 Extended GSM900 1 Watt peak Class 1 GSM1800 Static Sensitivity Better than 102dBm Extended GSM900 Better than 102dBm GSM1800 E Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 15 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 6 Serial Ports The RS232 standard interface serves to connect a PC Data Terminal Equipment DTE or an application which acts as host controller of the GT864 Terminal with all its functions Through the RS232 interface it can be used as GSM GPRS modem for sending and receiving of SMS Data and Fax calls The Telit GT864 PY on the basis of the EASY SCRIPT feature and with a PYTHON script developed by the user can allow self controlled operations which put the RS232 interface in a different serial data transmission mode e g to communicate with a sensor or actuator 6 1 1 RS232 standard interface connector Connector type on the terminal is e standard RS232 Sub D 9pin female e Baud rate from 300 to 115 200 bit s e Autobauding 300 to 38 400 bit s The electrical characteristics of the serial port signals are shown below PIN Signal Direction Voltage levels Description gt 4V 3 1 DCD Output WI Data carrier detect gt 4V 2 RD Output PN Received data gt 2V 3 TD Input 08V Transmitted data 22V 4 DTR Input 08V Data terminal ready GND OV Groun
7. the closest radio base station This can increase the strength of the signal received by the modem The modem s peak output power can reach 2W RF field strength varies with antenna type and distance At 10cm from the antenna the field strength may be up to 70V m and at 1m it will have reduced to 7V m In general CE marked products for residential and commercial areas and light industry can withstand a minimum of 3V m Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 5 1 2 1 The antenna cable Use 500 impedance low loss cable and high quality 500 impedance connectors frequency range up to 2GHz to avoid RF losses Ensure that the antenna cable is as short as possible The Voltage Standing Wave Ratio VSWR may depend on the effectiveness of the antenna cable and connectors In addition if you use an adapter between the antenna cable and the antenna connector it is crucial that the antenna cable is a high quality low loss cable Minimize the use of extension cables connectors and adapters Each additional cable connector or adapter causes a loss of signal power 5 1 2 2 Antenna Connector The Telit GT864 Terminal antenna connector allows transmission of radio frequency RF signals between the modem and an external customer supplied antenna The modem is fitted with a 500 FME male coaxial jack Description of antenna connector parameters Parameter Limit Description Nominal impedance 500 SWR better
8. 0 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 3 3 Switching the GT864 Terminal ON and OFF In this paragraph will be explained the way to switch the GT864 Terminals ON or OFF There are two ways to switch on the modem once power is applied either assert TO IN high for 5 0 2s or activate the RS232 control line DTR high for gt 0 2s The modem is fully operational after 4 seconds Logging onto a network may take longer than this and is outside the control of the modem The modem can be configured to start up at the time power is applied by permanently tying power connector signals TO IN pin 4 and VCC pin 1 together In this case DTR must be used to switch the modem on again after it has been switched off or reset while power is still applied NOTE DTR must be cycled from low to high NOTE The TO IN signal requires a positive edge a sharp signal transition from low to high to turn the modem on This transition should be a rising signal from OV GND to VCC or at least a large fraction of that voltage range and must be applied at the same time as VCC or after it Very slow transitions significantly slower than many milliseconds or very small transitions e g only a few volts instead of OV to VCC will not turn on the module since they are not considered to be a positive edge Although this will not be an issue in almost all typical applications of the modem under the fol
9. 4 cellular module within user application shall be done according to the design rules described in this manual IT L integrazione del modulo cellulare GSM GPRS GT864 all interno dell applicazione dell utente dovr rispettare le indicazioni progettuali descritte in questo manuale DE Die Integration des GT864 GSM GPRS Mobilfunk Moduls in ein Ger t mu gem der in diesem Dokument beschriebenen Konstruktionsregeln erfolgen SL Integracija GSM GPRS GT864 modula v uporabni ki aplikaciji bo morala upo tevati projektna navodila opisana v tem priro niku SP La utilizaci n del modulo GSM GPRS GT864 debe ser conforme a los usos para los cuales ha sido dise ado descritos en este manual del usuario FR L int gration du module cellulaire GT864 GSM GPRS dans l application de l utilisateur sera faite selon les r gles de conception d crites dans ce manuel HE nayon on Sw PVP TYTN np Nona MUNA nvnim nw nv WIND mvworwa Cinna Dy GT864 The information presented in this document is believed to be accurate and reliable However no responsibility is assumed by Telit Communication S p A for its use nor any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent rights of Telit Communication S p A other than for circuitry embodied in Telit products This document is subject to change without notice Reprod
10. HL leli wireless solutions GT864 QUAD PY Hardware User Guide 1vv0300756 Rev ka 23 10 08 A i Wh n eu n 43 ae a a d Making machines talk Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 This document is relating to the following products GSM GPRS GT864 QUAD Terminal GT864 PY Terminal Model P N GT864 QUAD 4990150069 GT864 PY 4990150070 page 2 of 23 Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 Contents 2E WEE EGG KAANAK NN memet gren BANI 5 2 G1864 Terminal LACE A CeS vin scsuvesvscusssivacsvavasereunadocnansesuaxeastayccekssinovasucthossessasrsastiborvsevessvencaivscaxaancns 6 3 LOWEN SUD DLV pA GANGBANG NAGANA 7 3 1 Supply voltage requirements ccsccssssccscsccsccccescecssccccscccesccessssscescccescecsessessssccesccesesceesessceseccssoessess T SZL Power ConNnEptOT T A 7 3 12 Analogue Input GT864 PY Variant e REX i cate RUE RUE eee ee de 8 ERES EM ITclRennm M M 9 3 2 Power CONSUMPTION NU aabangan paaa sama amain minamana 9 3 3 Switching the GT864 Terminal ON and OFF 4 eeeeeee esee ee ee eese sano tn sees etae te stessa seta seta sea 10 do Mini USB ING CONMCCION aus ete N NABA TINI SH SU FSI ELE CUR SP EUH
11. d connection DSR Output quie Data set read utpu E ata set ready gt 2V 7 RTS Input lt 08V Request to send gt 4V Clear to send 8 CTS Output lt AV gt 4V owe 9 RI Output EUN Ring indicator To connect to a PC as DTE a pin to pin 9 pin cable with D9 type connectors on both sides is needed 1 male amp 1 female Shielding of this cable is recommended and its length shall not exceed 3m Cds fear Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 16 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 Safety and Product Care Please read the information in this section and the information in Installation of the Modem before starting your integration work 7 1 General precautions The GT864 QUAD PY Terminal as a stand alone item is designed for indoor use only To use outside it must be integrated into a weatherproof enclosure Do not exceed the environmental and electrical limits as specified in Technical Data e Avoid exposing the modem to lighted cigarettes naked flames or to extreme hot or cold temperature e Never try to dismantle the modem yourself There are no components inside the modem that can be serviced by the user If you attempt to dismantle the modem you may invalidate the warranty e The GT864 QUAD PY Terminal must not be installed or located where the surface temperature of the plastic case may exceed 85
12. ent and the Hardware User Guide Software User Guide all the information you may need for developing a product meeting the R amp TTE Directive is included Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 11 Document Change Log Revision Date Changes ISSUE 0 08 05 07 Initial release ISSUE 1 23 10 08 Alligned with changes in Product Description page 23 of 23
13. esponse ADC lt digital value e g ADC 119 ADC_ IN 0 026V x digital value Examples Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 8 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 ADC IN V 5V 12V 24V 32V digital value 192 461 923 1230 3 1 3 Digital Output e switch voltage is VIN high side switch e max Output 400mA e short circuit protected e ESC protected e under full control of embedded application The following command has to be used to initialise and to set the digital output AT GPIO 3 1 1 switch output on AT GPIO 3 0 1 switch output off 3 2 Power Consumption The measurement was realised by 4 different Voltages 5 V 12V 24 V and 32 V The Terminals were connected via RS232 cable with the PC in order to receive at commands The temperatures were achieved with the help of temperature chamber The voice call with Power level 5 in GSM 900 was established with a GSM Tester GT864 QUAD MA 5V MA 12V mA 24V mA Q 32V Terminal switched off 0 075 0 520 1 770 2 580 On network connection Idle 52 22 16 14 mode On network connection voice 203 86 41 40 call power level 5 GSM 900 GT864 PY mA 5V MA 12V mA 24V mA Q 32V Terminal switched off 0 008 0 557 1 768 2 596 On network connection Idle 61 26 17 17 mode On network connection voice 205 87 43 42 call power level 5 GSM 90
14. ge frequency connector type and other national requirements e g certifications in the countries of its use 3 1 1 Power Connector An RJ11 6 way connector as shown and described below serves as a means of supplying and controlling DC power to the modem T 31 08 E Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 7 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 Pin description 1 VCC 2 ADC IN not connected in GT864 QUAD Terminal 3 HR IN 4 TO IN 5 DIG OUT not connected in GT864 QUAD Terminal 6 GND Signals of Power Connector PIN Signal Direction Limits Description 1 VCC Input 5 36V Positiv power input DC ADC_IN or No connection in GT864 Quad Input 0 36V 2 not version connected Analogue Input in GT864 PY Active high control line used to 3 HR IN Input 5 36V switch off or pus modem VIH VIL lt 0 5V Power off 1s lt t lt 2s T Positive edge triggered signal 4 USUS pu PN used to switch on the modem Viu gt 5V Vy 0 5V Power on t gt 1s DIG OUT No connection in GT864 Quad 5 or not Output 5 36V version connected Digital Output in GT864 PY Negative power ground input 6 GND Input and return path for TO_IN and HR_IN 3 1 2 Analogue Input GT864 PY Variant The following command has to be used to initialise and to read the status of the analogue input AT ADC 1 2 0 R
15. he terminal module all in almost the same housing and all equipped with the mini USB type connector e Audio connector The GT864 QUAD Terminal provides audio signals on that connector so you can connect a handset or microphone speaker system here available only for the GT864 QUAD e GPIO The programmable GT864 PY provides digital inputs on that connector so you can use external digital signals to control the behaviour of the terminal thereby available only for the GT864 PY By their nature these 2 different signals are completely different regarding voltage levels signal direction and applied energy Especially the audio signals are quite sensitive to over voltage but are only protected against it to a limited extend since otherwise the audio signal would be significantly detoriated So please make sure you are using the right variant for your application and do not mix up different variants especially do not drive any digital signals into the USB type connector of the audio variant since that might seriously damage the device The USB connector supports the connectivity of a headset or any other audio equipment using the analogue microphone and loudspeaker interface of GT864 QUAD PY Terminal The table below describes the signals on the USB connector Pinning Mini USB connector GT864 QUAD PIN Signal 1 MIC 2 EAR 3 MIC 4 EAR 5 GND not neccessary for audio Telit GT864 QUAD PY Hardware User Guide 1v
16. hich need to be taken into consideration when designing your application as they might affect the modem and its function They are Environmental conditions The modem must be installed so that the environmental conditions stated in the GT864 QUAD PY Product Description such as temperature humidity and vibration are satisfied Additionally the electrical specifications in the Technical Data section must not be exceeded GSM Signal strength The modem has to be placed in a way that ensures sufficient GSM signal strength To improve signal strength the antenna can be moved to another position Signal strength may depend on how close the modem is to a radio base station You must ensure that the location at which you intend to use the modem is within the network coverage area Degradation in signal strength can be the result of a disturbance from another source for example an electronic device in the immediate vicinity When an application is completed you can verify signal strength by issuing the AT command AT CSQ See AT CSQ Signal Strength Tip Before installing the modem use an ordinary mobile telephone to check a possible location for it In determining the location for the modem and antenna you should consider signal strength as well as cable length Connections of components to GT864 QUAD PY Terminal The integrator is responsible for the final integrated system Incorrectly designed or installed external components may cause radiatio
17. htning Follow the instructions provided by the antenna manufacturer e Never connect more than one modem to a single antenna The modem can be damaged by radio frequency energy from the transmitter of another modem e Like any mobile station the antenna of the modem emits radio frequency energy To avoid EMI electromagnetic interference you must determine whether the application itself or equipment in the application s proximity needs further protection against radio emission and the disturbances it might cause Protection is secured either by shielding the surrounding electronics or by moving the antenna away from the electronics and the external signals cable e The modem and antenna may be damaged if either come into contact with ground potentials other than the one in your application Beware ground potential are not always what they appear to be Reproduction forbidden without Telit Communications S p A written authorization All Rights dh page 18 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 8 Installation of the modem This chapter gives you advice and helpful hints on how to integrate the GT864 QUAD PY Terminal into your application from a hardware perspective Please read the information given in Safety and Product Care chapter 7 and then read the information in this section before starting your integration work 8 1 Where to install the modem There are several conditions w
18. lowing condition special design care has to be taken e large capacitors in your power supply which will lead to slow leading and falling edges issue does not apply with modern stabilized switching regulator power adaptors AND TO IN tied in parallel to VCC instead of separate dedicated digital signal e slow analogue signals used to assert TO IN e TO IN is asserted before VCC is asserted All 3 cases above might prevent the modem from recognizing the power up signal this is no failure of the modem itself the same would apply to almost any electronic device that provides a separate power on or reset signal If you are in doubt please e use the mains power adapter that is provided by your distributor and is known to work properly with your modem or e make sure that your signal and system design is according to the above or e consult our support team that will be more than happy to assist you There are three ways to switch off power down the modem as described below e either use the ATZSHDN command e HR IN t defined in the paragraph 3 1 1 e DTR permanently to GND A delay of up to 10s is experienced as the modem logs off the network A full system reset independent of the status of the software may be applied to the modem as follows e HR page 10 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 4 Mini USB type connector There exist several different variants of t
19. n limits to be exceeded For instance improperly made connections or improperly installed antennas can disturb the network and lead to malfunctions in the modem or equipment Network and Subscription Before your application is used you must ensure that your chosen network provides the necessary telecommunication services Contact your service provider to obtain the necessary information elf you intend to use SMS in the application ensure this is included in your voice subscription e Consider the choice of the supplementary services page 19 of 23 Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 8 2 How to install the modem 8 2 1 Power supply e Use a high quality power supply cable with low resistance This ensures that the voltages at the connector pins are within the allowed range even during the maximum peak current e When the unit is powered from a battery or a high current supply connect a fast 1 25A fuse in line with the positive supply This protects the power cabling and modem 8 2 2 Securing the modem Before securing the modem take into account the amount of additional space required for the mating connectors and cables that will be used in the application e Where access is restricted it may be easier to connect all the cables to the modem prior to securing it in the application e Securely attach the GT864 QUAD PY Terminal modem to the host application using two 3mm diameter pan
20. r 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 equipped 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 EN 50360 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 europa eu int comm enterprise rtte dir99 5 htm The text of the Directive 99 05 regarding telecommunication equipments is available while the applicable Directives Low Voltage and EMC are available at http europa eu int comm enterprise electr equipment index en htm PG j Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 21 of 23 O Telit GT864 QUAD PY Hardware User G
21. rmation or improvements to programs and or equipment at any time and without notice Such changes will nevertheless be incorporated into new editions of this application note All rights reserved 2007 2008 Telit Communications S p A Reproduction forbidden without Telit Communications S p A written authorization All Rights dh page 4 of 23 Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 1 Overview The aim of this document is the description of some hardware solutions useful for developing a product with the Telit GT864 QUAD PY Terminal In this document all the basic functions of a mobile phone will be taken into account for each one of them a proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be evidenced Obviously this document cannot embrace the whole hardware solutions and products that may be designed The wrong solutions to be avoided shall be considered as mandatory while the suggested hardware configurations shall not be considered mandatory instead the information given shall be used as a guide and a starting point for properly developing your product with the Telit GT864 QUAD PY Terminal For further hardware details that may not be explained in this document refer to the Telit GT864 QUAD PY Product Description document where all the hardware information is reported NOTICE EN The integration of the GSM GPRS GT86
22. uction forbidden without Telit Communications S p A written authorization All Rights Reserved page 5 of 23 Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 2 GT864 Terminal Interfaces The interfaces of the GT864 Terminal are the following industry standard connectors distributed on the front and rear panels see figures below RJ11 6 way power connector Analog audio GT864 QUAD only 4 Input GT864 PY only SIM card reader FME male coaxial jack antenna connector Sub D socket 9 pin RS232 serial port Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 3 Power Supply 3 1 Supply voltage requirements The DC power supply must be connected to the POWER input e Input voltage range 5 36V DC e Nominal Voltage 12V DC Application of the supply voltage does not switch the modem on To do so an additional active high control signal TO_IN must be applied for gt 1s Please see chapter 3 3 Switching on the modem for further important details about TO_IN and power supply requirements especially if TO_IN is applied in parallel to VCC VCC and GND are reverse polarity and over voltage protected Please note this does not apply for the GND on the antenna connector if this coax GND shield is connected to your applications ground plane NOTE In case that power supply equipment is to be ordered its conformity needs to be verified with the mains supply volta
23. uide 1vv0300756 Rev 1 23 10 08 10 Conformity Assessment Issues The GT864 QUAD PY Terminal is assessed to be conform to the R amp TTE Directive as stand alone products so If the module is installed in conformance with Dai Telecom installation instructions require no further evaluation under Article 3 2 of the R amp TTE Directive and do not require further involvement of a R amp TTE Directive Notified Body for the final product In all other cases or if the manufacturer of the final product is in doubt then the equipment integrating the radio module must be assessed against Article 3 2 of the R amp TTE Directive In all cases assessment of the final product must be made against the Essential requirements of the R amp TTE Directive Articles 3 1 a and b safety and EMC respectively and any relevant Article 3 3 requirements The GT864 QUAD PY Terminal is conform with the following European Union Directives R amp TTE Directive 1999 5 EC Radio Equipment amp Telecommunications Terminal Equipments Low Voltage Directive 73 23 EEC and product safety Directive 89 336 EEC for conformity for EMC In order to satisfy the essential requisite of the R amp TTE 99 5 EC directive the GT864 QUAD PY Terminal is compliant with the following standards GSM Radio Spectrum Standard EN 301 511 and 3GPP 51 010 1 EMC Electromagnetic Compatibility Standards EN 301 489 1 and EN 301 489 7 LVD Low Voltage Directive Standards EN 60 950 In this docum
24. v0300756 Rev 1 23 10 08 Pin 5 Pin 1 Mini USB Type A B Female Receptacle At the mini USB connector are 4 inputs with the following technical description e max voltage Vin is 30V e low level 0 1V e high level 4 30V e ESD protected e under full control of embedded application Pinning of the USB connector for the GT864 PY GT864 PY GPIO GT864 PY PIN Mini USB Mini USB PIN GPIO 11 D1 IN1 1 GPIO 12 G4 IN2 2 GPIO 13 K10 IN3 3 GPIO 14 B4 IN4 4 GND 5 page 12 of 23 Qo Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 All inputs are under control of an embedded application script or AT commands The following AT commands have to be used to initialise and to read the status of the GPIOs AT GPIO 11 2 0 read GPIO11 PIN1 Mini USB AT GPIO 12 2 0 read GPIO12 PIN2 Mini USB AT GPIO 13 2 0 read GPIO13 PIN3 Mini USB AT GPIO 14 2 0 read GPIO14 PIN4 Mini USB v M ee E sa Nikal D vial i b f ba qe i a E PAS a my TAG E Fe E i Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved page 13 of 23 O Telit GT864 QUAD PY Hardware User Guide 1vv0300756 Rev 1 23 10 08 5 Antenna 5 1 General The antenna is the component in your system that maintains the radio link between the network and the modem Since the antenna transmits and receives electromagnetic energy its efficient function will depend on
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