TM1 User Manual
Contents
1. 25 5 JUserdlntetfaces uoo 26 5 1 SMD CONNECTOR RE 27 5 1 1 Switching ON of the data a A a inen nennen 29 5 1 2 SIM Interface 1r u asa usa 29 5 1 3 Serial 30 5 1 4 GP O D 31 5 1 5 Merle 32 5 1 6 ADC interface Measurement eren nennen 32 5 1 7 asan L 33 5 1 8 2C DUS INTO ACE uu LIL 33 5 1 9 Electrical Characteristics of SMD connector 2 2 33 6 Serial Port and Data Traffic nn tren en nn 36 6 1 ee 36 6 2 AT command mode at the sns nn 36 6 3 GPRS data communication J enenatis risas sa sara ssa 37 6 3 1 Introduction to the GPRS IP relaying 37 6 3 2 Context actiVatlon uu aiaiai nid dawa das nd dein duda onu qud daa pda unu pua cua du qua dn 39 6 3 3 Context deactivation i ons pud qaya 39 64 CSD data calls2. TM1 User Manual v1 2 5 1 7 SPI The SPI bus includes a clock signal and two signals for the transmissions of the master and the slave The SPI interface is available on the data module only if the DAI interface is disabled Name PIN I O type Description CLKO_DAI 33 Generic digital signal Shift Clock RXD DAI 34 Generic digital signal Master Receive Slave Transmit TXD DAI 32 O Generic digital signal SSC Chip Select WAO DAI 31 Generic digital signal Master Transmit Slave Receive SPI interface is available to the user only if M2M software is integrated on the data module Though a specific SW configuration is possible to configure SPI interface as a 9 wire second serial port To implement this second serial port an external SPI RS 232 converter is needed as well as a GPIO GPIO 05 This interface can be used for tracing purposes and is possible to send to the PC the trace of TM1 data module If a customer application is implemented on the data module and M2M software is integrated on the data module then the functionality of the pins dedicated to SPI interface can be changed In this case these pins can be assigned to GPIO interface with this configuration DAI and SPI interface are not enabled Note M2M applications for GSM module are created in Teltonika 5 1 8 2 bus interface The 2 bus interface includes a serial clock and
3. 40 6 4 1 Outgoing data Calls RETE 40 6 4 2 Incoming data cal uuu lu sd ab eec egt Tn ead ripas 42 6 5 Power saving and CTS 4442 42 0 nnne taces 44 6 0 Reference e Ie ec ech deed 45 6 6 1 aaa 45 7 Annex 1 Circuit 108 2 behavior for the different amp D summarizing table 46 8 Annex 2 Incoming GPRS context 46 TM1 User Manual v1 2 1 Document Mission TM1 User Manual contains all information necessary for a successful integration of the system into the application of the customer Additionally the customer uses the information described in the User Manual to compare different systems and to finally select the appropriate system for his application Therefore TM1 User Manual is an important customer document A particular attention has to be paid while writing the document from the customer point of view 2 Glossary Acronym Meaning 3GPP 3rd Generation Partnership Project AC Alternating Current ADC Analog to Digital Converter AFC Automatic Frequency Correction APN Access Point Name ASC Asynchronous Serial Interface Controller AT Command Interpreter Software Subsystem or AT attent
4. 3 GPIO compatible 03 TM1 User Manual v1 2 i Name y o Function I O type Description 11 KEYOUTA4 GPIO VO Keypadinterface GPIO CMOS 3 3V Keypad output 4 GPIO compatible 04 12 KEYOUTS GPIO VO Keypadinterface GPIO CMOS 3 3V Keypad output pin 5 GPIO compatible 05 13 KEYINO GPIO WO Keypad interface GPIO CMOS input pin 0 GPIO compatible 06 14 KEYIN1 GPIO WO Keypadinterace GPIO CMOS 390 Keypad input pin 1 GPIO compatible 07 15 KEYIN2 GPIO VO Keypadinterface GPIO CMOS 3 3V Keypad input pin 2 GPIO compatible 08 Keypad interface CMOS 3 3V Keypad input pin 3 _ KEVINS GPIO vo GPIO compatible GPIO 09 Should be connected with 17 GND PWR GSM Power Supply Ground pins 3 6 42 45 47 49 50 18 EXSIN GPIO External Interrupt 1 Ext Int 5B 19 PRION enerig digra Power on button signal 20 CAPOS GPIO lo GPIO B wd GPIO 37 21 CAP19 GPIO GPIO sb GPIO 36 22 EXTRSTN External reset i cul External HW reset 23 DSR Asynchronous Generic digital Data Set Ready Serial Interface 0 signal 24 RI Asynchronous Generic digital Ring Indicator Serial Interface 0 signal 25 DCD A INORBHS Generic digital Data Carrier Detect Serial Interface 0 signal 26 DTR Asynchronous Generic digital Data Terminal
5. TM1 User Manual v1 2 6 Serial Port and Data Traffic Behavior 6 1 Introduction This chapter contains explanations of the procedures performed by TM1 needed to establish and terminate e GPRS data traffic so called IP relaying in context activation e GSM Circuit Switched data traffic The chapter focuses about the behavior of the serial port UART in the previous two scenarios both like character data traffic and signal lines status Another behavior of serial signal lines is described for power saving conditions and software reset In order to establish a data communication between the module attached to an external Data Terminal Equipment like a PC or an application processor for embedded systems and a remote server different operations are involved as reported in ETSI 3GPP specifications 03 60 07 07 07 60 09 61 Since any specification looks at its own scope in this chapter is reported an overview of all of the interacting operations necessary to establish a data communication both GPRS and GSM Circuit Switched with the behavior of the serial port UART in the different stages The GPRS traffic is Internet Protocol IP based i e it is a packet traffic The CSD traffic is byte raw over a dedicated GSM channel 6 2 AT command mode at the startup As default the module starts with the serial port 0 in AT command mode the behavior can be software configured with different services at the serial port this is out of the scope of
6. History Company was established on 15th of April 1998 Main residence is based in Vilnius ompany started with telecommunication devices In 2001 company expanded its fields of activity by starting design and manufacturing of electronical systems for wireless data transfer production of In 2002 contract of partnership and collaboration was signed with company Pro Sign GmbH Germany considering design and representation of graphic programming interface iCon L in Eastern Europe In 2003 Teltonika and NOKIA became partners and started integration of NOKIA M2M technology using NOKIA N12 module It was the beginning of wireless technology development process In 2004 NOKIA invited Teltonika to join presentation of M2M technology innovations in CeBIT 2004 It was very high evaluation of a small Lithuanian company and its possibilities which helped to feel peculiarities of international business TM1 GSM GPRS Module In 2004 Teltonika produced more than 10 new products and solutions using EDGE technology It was a condition that made Teltonika a leader of M2M integration solutions using EDGE not only in Lithuania but also in Europe 2005 was the year of two successful international exhibitions CEBIT 2005 and HANNOVER MESSE 2005 These showsopened new possibilities for offering our products and solutions for all world In the year 2005 Teltonika became an international company We became Lithuanian Finnish C
7. 3 0 V Stresses above those listed here may cause permanent damage to the device Exposure to absolute maximum rating conditions for extended periods may affect device reliability 5 1 9 3 Operating range for input supply power voltages I O type Name Min Typ Max Module Supply VBAT 35V 3 8V 42V Module Charge VCHARGE 6V 6 5V 15 0 V 5 1 9 4 Operating range for output supply power voltages type Name Min Typ Max Test condition 1 80 V VSIM 1 80 V SIM Supply SIM VCC 2 85 V VSIM 2 85 V 5 1 9 5 Operating range for input signal voltages I O type Parameter Min Typ Max Test condition L level 0 20 V 0 57 V Generic digital signals H level 2 00 V 3 30V 0 00 V 0 36 V 1 80 V L level 0 00 V 0 57V VSIM 2 85 V SIM interface signals 1 26 V 3 30 V VSIM 1 80 V H level 2 00 V 3 30 V VSIM 2 85 V TM1 User Manual v1 2 5 1 9 6 Operating range for output signal voltages type Parameter Min Typ Max Test condition EE L level 0 00 V 0 35 V High loi Generic digital signals H level 2 50V 2 85V High lou 0 00 V 0 36 V VSIM 1 80 V L level 0 00 V 0 57 V VSIM 2 85 V SIM interface signals 1 26 V 1 80 V 3 30 V VSIM 1 80 V 2 00 V 2 85 V 3 30 V VSIM 2 85 V H level
8. Codecs The following speech codecs are supported in firmware on the DSP e GSM Half Rate TCH HS e GSM Full Rate TCH FS e GSM Enhanced Full Rate TCH EFR e 3GPP Adaptive Multi Rate AMR TCH AFS TCH AHS 4 2 6 Echo canceller Noise Reduction For better handling of speech calls and audio functionalities the product supports algorithms for echo cancellation noise suppression and automatic gain control 4 2 7 Audio Features The main values referred to the audio part are listed as follows e Microphone input o Max EGMICP1 EGVMICN 1 1 03 V o Min S D 65 dB o Min Signal to noise 75 dB gs 12dB 300 3900Hz GSM mode o Typ Power supply rejection 85 dB o Cross talk RX and TX channels 65 dB e Output AUOP AUON o Single ended output load capacitance 10 nF o Power supply rejection 66 dB o Inductive load 400 In the following is reported the microphone input equivalent circuit that has been used to evaluate the impedance and the transfer function TM1 User Manual v1 2 Baseband Chipset MIC 1 Figure 4 1 TM1 microphone input equivalent circuit In the following is reported the transfer function of the EGMICN1 EGMICP1 VMICN1 Figure 4 2 Transfer function of the microphone part Finally is displayed the input impedance of the MIC 1 TM1 User Manual v1 2 Figure 4 3 Input dialing of MIC1 TM1 User Manual v1 2 4 3 Mecha
9. DTE through the data module to the remote DCE i e the data architecture is totally different than the GPRS one in which the data module extracts the IP packets from the DTE PPP and forwards them through the GPRS IP network to a remote IP server The CS data plane can be escaped through the sequence as requested by 8 9 spec The AT command plane is resumed without cleardown call we can refer to it as AT on line command mode Please note that the DCD line is ON both in the AT on line command plane and data plane In the AT on line command mode the user can clear the call with an ATH command DCD changes from ON to OFF or resume the data plane through an ATO command the module answers with CONNECT again If the remote peer closes the call the DCD changes from ON to OFF and the NO CARRIER string is put on the serial port Summary of a CSD outgoing data call DTE sets the type of data requested to the DCE through specific AT commands like AT RLP see 11 DTE sends ATD remote DCE number DCE establishes a call with the remote DCE through the GSM network Remote DCE accepts the call DCE sets serial line DCD ON DCE sends CONNECT communication baudrate gt to the DTE DTE sends any character Remote DCE receives characters through the GSM network and delivers them to the remote DTE Remote DTE receives characters and delivers its characters to the remote DCE Remote DCE sends character through the GSM network to the DCE DCE sends chara
10. PPP Before activating the PPP protocol data plane a dial up application has to provide the ATD 99 lt context_number gt to the module with this command the module switches from the AT command plane to the PPP data plane and can accept PPP packets The module puts the DCD line to the ON state then answer with a CONNECT to confirm the ATD 99 command Please note that the DCD ON is not in relationship with the context activation but with the PPP data plane It is then mandatory for the DTE to start the PPP negotiation with the module context is not active after the CONNECT string During the PPP negotiation the context activation through the network is done by the module which follows ETSI 3GPP GPRS specifications 2 4 5 Note the PPP has a local scope DTE DCE only DCE network traffic is GPRS protocol based with IP packets When the PPP link is established the IP data traffic can be done if the DTE properly delivers IP packets to the module in PPP frames through the serial line Pay attention It is not possible for a DTE to deliver raw info without the IP PPP envelope this way of functionality is different to the GSM data traffic which will be described in next sections Summary of the context activation operations DTE sends context info with AT CGDCONT lt context_number gt DTE sends ATD 99 context number DCE sets the serial line DCD ON DCE answer with CONNECT or ERROR if something goes wrong DTE starts PPP ne
11. Ready Serial Interface 0 signal 27 CTS Asynchronous Generic digital RTS DCE Serial Interface 0 signal Asynchronous Generic digital ae RIS 8B Serial Interface 0 signal G ISANGE 29 RXD Asynchronous Generic digital RX DCE Serial Interface 0 signal 30 TXD Asynchronous Generic digital TX DCE Serial Interface 0 signal 2 DAI Reset 31 WA0 yo Digital Audio Interface Generic digital Master Transmit Slave Synchronous Serial Interface signal Recei eceive Digital Audio Interface Generic digital DAI Transmit 2 TUDA 4 Synchronous Serial Interface signal SSC chip select Digital Audio Interface Generic digital DAI Clock 25 Uo Synchronous Serial Interface signal Shift Clock A DAI Receive 34 RXD DAI Digital Audio Interface Generic digital Master Receive Slave Synchronous Serial Interface signal T ransmit 35 SCL I2C bus interface Hd Serial Clock Line 36 SDA 2 bus interface Generic digital Serial Data Line TM1 User Manual v1 2 i Name 1 0 Function type Description signal 37 SIM_CLK SIM interface SIM clock signal 38 SIM IO V0 SIM interface uc od SIM I O serial data 39 SIM_RST O SIM interface uc SIM reset signal 40 SIM VCC PWR SIM interface SIM Supply SIM power supply 41 ADC1 Measurement interface iu 2 Analog to Digital Converter Should be connected with 42 G
12. command to the module which sets an outgoing data call to a remote modem or another data module Data can be transparent non reliable or non transparent with the reliable RLP protocol The settings for the two kinds of data are outside the scope of this guide see internal reference 11 The next diagram represents the architecture for a CSD data call TM1 User Manual v1 2 DCE Teltonika module DTA functionalities Application CS data UART DTE UART Radio layer serial line MSC BSS PTSN GSM network DCE wired modem Applicati pplication DTA functionalities DTE UART serial line TM1 User Manual v1 2 When the remote DCE accepts the data call the module DCD line is set to ON and the CONNECT communication baudrate string is returned by the module At this stage the DTE can send characters through the serial line to the data module which sends them through the network to the remote DCE attached to a remote DTE The remote DTE application can take the characters and reply The communication can proceed indefinitely If the remote DCE is an entry point of an internet provider PPP packets are expected from the DTE attached to the module Please note that PPP packets are delivered like a raw char stream from
13. detection of the required SIM supporting voltage Both 1 8V and 3V SIM type will be supported 1 8 3V ME activation and deactivation with automatic voltage switch from 1 8V to 3V are implemented according to ISO IEC 78 16 e Specifications The SIM driver supports the PPS Protocol and Parameter Selection procedure for baud rate selection according to the values proposed by the SIM Card Clock stop is supported at both high and low level TM1 User Manual v1 2 Finally external SIM ESD protection is required The description of pins related to SIM interface is reported in the following Name PIN I O type Description SIM_CLK 37 O SIM interface signal SIM Clock Signal SIM IO 38 SIM interface signal SIM I O Serial Data SIM RST 39 O SIM interface signal SIM Reset Signal SIM_VCC 40 PWR SIM Supply SIM Power Supply 5 1 2 1 SIM Functionality Among SIM functionalities the following services of the SIM are supported Abbreviated Dialing Numbers ADN Fixed Dialing Numbers FDN Last Dialed Numbers LDN Service Dialing Numbers SDN e ME Personalization SIM Lock ME Personalization handling is a mechanism to tie the ME operation to one specific SIM card or to a limited range of SIM cards from a given Network Operator or Service Provider The ME will only accept the SIM if there is a positive match between the personalization code group s stored in the ME and the code
14. group s belonging to the inserted SIM The SIM Lock feature supported by TM1 GSM GPRS module enables ME personalization through the following personalization categories e Network lock Network subset lock Service provider lock Corporate lock Operator lock SIM Toolkit R 99 is supported For a detailed description of the STK features refer to the PICS PIXIT documentation 5 1 3 Serial Interfaces TM1 Data Module offers to the user the possibility to use a serial port through the mother board complaining with ITU V 24 protocol Default baud rate is 115 2 Kbps data rate maximum is 920 Kbps Main features of ASC serial port are reported in the following e Complete 9 pin serial port Mux protocol GSM 27 010 Power saving available Interface present on the mother board is fully RS232 9 pin compliant HW flow control supported Used for AT interface The available signals for ASC serial port are e Data Carrier Detect DCD Data Terminal Ready DTR Clear to Send CTS Request to Send RTS RX Data RXD TX Data TXD Ring Indicator RI Data Set Ready DSR TM1 User Manual v1 2 The design of the data module is done to use the data module as a DCE while the application will be a DTE Hence with the signal RXD the data module will receive the data send by the DTE while with TXD the data module will transmit the data to the DTE In the table reported below are described the pins of the board
15. integral parts of the equipment or as parts of the building installation TM1 User Manual v1 2 73 23 EEC Low Voltage Directive The Low Voltage Directive LVD 73 23 EEC seeks to ensure that electrical equipment within certain voltage limits both provides a high level of protection for European citizens and enjoys a Single Market in the European Union TM1 User Manual v1 2 4 Product functions The features that are implemented on TM1 GSM GPRS Data Module are reported in TM1 Features List In the following sections will be described the functionalities integrated in the data module 4 1 Modem The modem part provides with minimal component s list all functionality necessary for voice and data transmission over GSM and GPRS network The modem is divided in an area surrounded by traces on which metal box must be soldered This area encloses the RF High power components the remaining passive components of the transceiver the baseband processor memory crystals and power management unit The modem is designed as a dual band transceiver i e GSM850 PCS1900 or EGSM900 DCS1800 4 1 1 GSM GPRS modem functionalities TM1 GSM GPRS module integrates a full featured Release 99 GSM GPRS Protocol Stack whose main characteristics are listed in the following Refer to the PICS PIXIT documentation for a detailed description of the Stack features The product implements a dual band MS able to operate in the f
16. of 709 Charging Current and Temperature 60 600mA O dua C O i N 30 C 02 15 02 00 01 45 01 30 01 15 01 00 00 45 00 30 00 15 00 00 OmA vun Time hh mm Figure 4 7 Current and Temperature and of the temperature The green dashed line is the instant current calculated from Vchr Vbat Rext Rext is 0 15 Ohm As seen the value is very noisy To clean this a mean of 16 samples is obtained and this is the value of ovs red line This is more stable The temperature is obtained by internal sensor of EGV The temperature is higher during the phase with higher In Figure 4 7 is reported the graph of the current calculated current TM1 User Manual v1 2 4 6 Power Saving Power saving is a special function that allows the reducing of power consumption during the idle time If the clock increases required power increases too Therefore a solution for minimizing the power is the reducing of the master clock frequency when there are no activities In this period the system doesn t work with a clock of 26 MHz fast clock but with a clock of 32 KHz RTC clock or slow clock This switching between 26 MHz and 32 KHz clock is performed by SCCU Standby Clock Control Unit Main priorit
17. the default number of GPIO interface is 3 in the following are listed the pin that are always enabled as GPIO e CAPOO EXSIN GPIO e CAPOS GPIO e CAP19 GPIO Note M2M applications for GSM module are created in Teltonika 5 1 5 Keypad Using M2M Software Package keypad interface become available It consists of 6 output and 4 input pins in order to manage a maximum of 24 keys with a matrix configuration Name PIN I O type Description KEYOUTO GPIO 7 O Generic digital signal Keypad interface KEYOUT1 GPIO 8 O Generic digital signal Keypad interface KEYOUT2 GPIO 9 O Generic digital signal Keypad interface KEYOUT3 GPIO 10 O Generic digital signal Keypad interface KEYOUT4 GPIO 11 O Generic digital signal Keypad interface KEYOUT5 GPIO 12 O Generic digital signal Keypad interface KEYIN0 GPIO 13 Generic digital signal Keypad interface KEYIN1 GPIO 14 Generic digital signal Keypad interface KEYIN2 GPIO 15 Generic digital signal Keypad interface KEYIN3 GPIO 16 Generic digital signal Keypad interface Note M2M applications for GSM module are created in Teltonika 5 1 6 ADC interface Measurement interface An input for Analog to Digital Converter is supported The resolution of these converters is of 12 bit with a range of e 0 0 96 Volts ADC1 converter Name PIN I O ADC1 41 I O type ADC 12 bits 0 0 96 Volts Description Analog to Digital Converter
18. the module sends the ATA string and the module accepts the incoming data call The DCE sets the serial line DCD ON The DCE sends the CONNECT communication baudrate gt to the DTE DTE sends characters through the DCE and the GSM network to the remote DCE DTE system and the data communication can be done like for outgoing data calls Oo The data plane can be escaped with a sequence in order to put the DCE in AT on line command mode AT commands can be delivered from the DTE The ATH command is sent by the DTE to cleardown call The DTR rule is the same as for outgoing calls TM1 User Manual v1 2 6 5 Power saving and CTS handshake The CTS line is used during power saving periods in order to prevent a remote DTE to send chars to the DCE when it cannot receive During the power saving phase the module activity is reduced and the reference clock of the system is reduced too Under these conditions the UART cannot receive chars and the CTS line is switched to the OFF state When the module is network attached it periodically wakes up in order to be synchronized with the network activity the power saving state time is in relationship with the network parameters and can be up to 450 GSM time frames 2 s Please note that this time is not constant this is only a maximum time given as reference and valid when the module is attached to the network When the module wakes up the CTS line is switched ON and it persists in
19. this document The user can provide AT commands in conformance with in the internal document 11 and ETSI 3GPP 3 7 specifications The module is a Data Communication Equipment DCE a modem in conformance with the 8 9 10 specifications i e in this document the next serial line convention is used Tx 103J q Rue e RTS 105 gt 4 CTS 106 o o DTR 108 2 lt DSR 107 DCE Modem 4 DCD 109 V kes DTE Computer lt RI 126 o Serial lines at the startup are Circuit 107 DSR ON Circuit 106 CTS ON Circuit 109 DCD OFF Circuit 126 RI OFF Circuit 108 2 DTR is relevant when the module is in data traffic only Circuit 105 RTS is continuously monitored i e the flow control is usually hardware like default AT amp K3 TM1 User Manual v1 2 Please note e The CTS line is synchronized with the module power saving to prevent the DTE to deliver characters if the module cannot receive them If the power saving is let enabled without the hardware flow control the chars delivered by the DTE can be lost 6 3 GPRS data communication 6 3 1 Introduction to the GPRS IP relaying architecture A GPRS data communication is done in the IP relaying mode as described in 2 4 5 i e the data sent to the module through the serial port by a D
20. this state at least for 3 GSM time frames 14 ms If the module has some network activity to do or chars are delivered at the UART port the module remains in the operative state otherwise it comes back to the power saving conditions When the module is outside the power saving conditions the time amount before entering in the power saving mode is variable and it depends on parameters like e kind of activity with regards to the network e task activity of the M2M software e time elapsed from the last character received at the serial port after 5000 GSM frames 23 s without serial activity chars transmitted or received the serial drivers lets the module to go into power saving if there aren t other activities Next figure refers to the CTS line activity inside and outside the power saving in different scenarios It can be considered like an example most scenarios have an unpredictable power saving time line because they are in relationship with external events and network activity chars income here CTS ON LIL CTS OFF time GSM nes max 450 5000 at least e gt 3 at least without any activity TM1 User Manual v1 2 6 6 Reference 6 6 1 External 1 Stevens TCP IP Illustrated Volume1 amp 2 Addison Wesley 1994 2 GSM 03 60 Digital cellular telecommunication system Phase 2 GPRS Mobile Station MS supporting GPRS 3 3GPP TS 27 007 version 7 6 0 Release 1998 Digital cellular telecommuni
21. v1 2 The integrated charging circuit doesn t have any voltage or current limitation therefore the charger must be chosen very carefully see the below charger specification section During the fast charging that follows the precharging phase the battery is charged with constant current which has to be limited by the charger appropriate selection This current is monitored by the software with the aid of the series resistor R102 0 15 Ohm and by the measuring of the CHARGE SENSE voltage and the battery voltage If the charging current exceeds the limit of 500 mA the charging is stopped to prevent circuit and battery damages When the battery voltage reaches the nominal maximum voltage the charging enters in the constant voltage phase where the average charging current decreases until the battery in completely charged The charging is enabled only if the module temperature is between the range 0 C to 40 C in order to satisfy the battery specification In order to enhance the battery temperature estimation optionally the module can use an external NTC temperature sensor in close thermal contact to the battery surface The NTC has to be connected using the appropriate pin 4 5 1 TM1 Charger specification The maximum limit of voltage and current supported by the pin VCHARGE on TM1 module are reported as follows e Vin max 15 V e linmax 500 mA The charger is detected through the signal CDT when inserted the minimum threshold at the VCHARG
22. 4 1 4 Other basic Teatres nuc the es ec cava sce 9 4 2 9 4 2 1 Audio Power Amiplifler uu a ua eta dated 9 4 2 2 Handset and Headset Mode nuce nie edet ati eere 10 4 2 3 ccc 10 4 2 4 Finger Mode u n 10 4 2 5 Audio OD iiec 11 4 2 6 Echo canceller Noise Reductiom U U uuu nnne 11 4 2 7 Audio eatures cere ce dade Sct eg ca niani aM eii 11 43 Mechanical characteristics ie eer E oe er i Aden Er Adel ec ened dees aplus eee 14 AA Powersupply iiie rore n Do 15 4 4 1 Current consumrptlOris uuu u ut am ian dE Qe ng ed eu ona deua a ER qe aqhaq e eI gh 15 4 5 Battery charger feature ISt nca edi Ft eda one e dU a a da a d ae dd 16 4 5 1 TMA Charger specifICatiOn 2 eoi eve pedea ente dt da vedas 18 4 5 2 Charger Additional Note occi dinner patct dota veda een batte x bad 19 4 5 3 1 Charger SW driver functional 21 46 Power SAVING eiae tels oa o ae RE 24 47
23. 8 V Should be connected with pins 1 2 51 TM1 User Manual v1 2 4 5 Battery charger feature list Alternatively to the power supplier TM1 Data Module can be supplied through a battery The supported type for the battery is Li lon and Li Polymer rechargeable only default system supports 650 mAh nominal A description of the pins that are enabled to supply the Data Module with a battery is reported below Name PIN I O type Description VCHARGE 4 PWR Module Charge Should be connected with pin 5 VCHARGE 5 PWR Module Charge Should be connected with pin 4 In the case that a battery is not used the VCHARGE pins 4 and 5 should be left unconnected The main features of the battery charger system implemented on TM1 data module are listed in the following e The supported types for the battery are Li lon and Lithium lon Polymer batteries other type of batteries can be supported in TM1 with dedicated SW The default system support 500 mAh minimum value the typical value of the battery capacity is 650 mAh Charger voltage range goes from 6 to 15 Volts while the charger voltage current is 500 mA The supported battery voltage range goes from 3 1 V to 4 47 V The charger circuitry generates the power on after battery connection or charger connection The charging is optimized for current adjusted in the AC DC wall adapter charger Charger detection supported Battery over voltage detec
24. E pin is 4 8V The suggested characteristics of the charger are listed below e Vout min OA 5V e Vout max 0A 15V e lout max 500 5V The user must use current limited charger An electronic switched charger where the charge current is usually constant and defined by the electronics control in the charger is usually a good choice v V Load curve of the charger is suggested to not exceed the limit of this graph 15 Charger Output Voltage The limit of 500mA is relative to a battery with minimum 650 mAh of capacitance The battery can have greater capacitance but for lower capacitance user has to reduce the charger current TM1 User Manual v1 2 Selection of very small charge batteries 400 mA is not suggested unless a proper change customization in SW allows to use it 4 5 2 Charger Additional Note 4 5 2 1 BJT T1 data sheet Data sheet of the BJT used on 709 charging circuit ZXTP25020CFH Absolute maximum ratings Emitter base voltage F U a Continuous collector current pe wees e r Power dissipation at TA 25 amp ae Linear derating factor 5 84 mW c Power dissipation 25 lt 0 1 oW linear aerating factor 84 Power dissipation at TA 25 9 BEP Linear derating factor mw c Power dissipation at TA 25 w sU a Operating and storage temperature range 55 to 150 Therma
25. M1 User Manual v1 2 5 1 SMD Connector A 52 pin connector is provided to interface of TM1 module for the power supply SIM interface audio interface 1 x analog 1x digital I2C bus SPI bus 1 x analog in ADC 1 ASC serial port 6x4 Keypad matrix 1 Antenna interface and 3 GPIOs x 52 o s i i so m 5 o m R S a D o O Z Pin 31 YSS pin 30 Figure 5 2 Pin localization PIN Name y o Function I O type Description Should be connected with 1 VBAT PWR GSM Power Supply Module Supply pins 2 51 52 Should be connected with 2 VBAT PWR GSM Power Supply Module Supply pins 1 51 52 Should be connected with 3 GND PWR GSM Power Supply Ground pins 6 17 42 45 47 49 50 4 VCHARGE PWR GSM Power Supply Module Charge 59419 connected with 5 VCHARGE PWR GSM Power Supply Module Charge Should be 4 uid Should be connected with 6 GND PWR GSM Power Supply Ground pins 3 17 42 45 47 49 50 7 KEYOUTO GPIO VO Keypadinterface GPIO 5 3 3V Keypad output pin 0 GPIO compatible 00 8 KEYOUTIGPIO VO Keypadinterface GPIO CMOS 3 3V Keypad output pin 1 GPIO compatible 01 9 KEYOUT2 GPIO VO Keypadinterface GPIO CMOS 3 3V Keypad output pin 2 GPIO compatible 02 10 KEYOUT3 GPIO VO Keypadinterface GPIO CMOS 3 3V Keypad output
26. ND PWR GSM Power Supply Ground pins 3 6 17 45 47 49 50 43 AUOP O Audio Interface Analog signal Balanced power audio out 44 AUON O Audio Interface Analog signal Balanced power audio out GSM Power Supply Should be connected to We Mese MIC reference rauna microphone ground Handset microphone 46 MIC Audio Interface Analog signal bias Should be connected with 47 GND PWR GSM Power Supply Ground pins 3 6 17 42 45 49 50 Should be connected with 48 ANT RF GSM antenna RF 50 ohm PCB line Should be connected with 49 GND PWR GSM Power Supply Ground pins 3 6 17 42 45 47 50 Should be connected with 50 GND PWR GSM Power Supply Ground pins 3 6 17 42 45 47 49 51 VBAT PWR GSM Power Supply Module Supply p ro Win 52 VBAT PWR GSM Power Supply Module Supply ks Mm Note If the pin is unconnected it can be left floating 5 1 1 Switching ON of the data module To switch on the data module the pin 19 PWR ON must be used this pin must be connected This pin is connected with the ON button of the mother board Name PIN I O type Generic digital signal Description PWR_ON 19 Power on button Pin 19 has the electrical characteristics of a generic digital signal and TM1 Data Module has a tolerant circuit against voltages greater than 3 3 Volts 5 1 2 SIM Interface TM1 Data Module can handle a SIM Card High speed SIM ME interface is implemented as well as the automatic
27. Purpose I O GPIOs shall be initialized to proper direction output logic level as soon as possible If supply is removed from external device relevant GPIOs should be placed at low logic level or decoupled Name PIN I O type Description CAPOO EXSIN GPIO 18 Generic digital signal Ext Int 5B CAP05 GPIO 20 Generic digital signal GPIO 37 CAP19 GPIO 21 Generic digital signal GPIO 36 KEYOUTO GPIO 7 Generic digital signal Keypad interface GPIO 00 KEYOUT1 GPIO 8 Generic digital signal Keypad interface GPIO 01 KEYOUT2 GPIO 9 Generic digital signal Keypad interface GPIO 02 KEYOUT3 GPIO 10 Generic digital signal Keypad interface GPIO 03 KEYOUT4 GPIO 11 Generic digital signal Keypad interface GPIO 04 TM1 User Manual v1 2 Name PIN I O type Description KEYOUTS GPIO 12 Generic digital signal Keypad interface GPIO 05 KEYINO GPIO 13 Generic digital signal Keypad interface GPIO 06 KEYIN1 GPIO 14 Generic digital signal Keypad interface GPIO 07 KEYIN2 GPIO 15 Generic digital signal Keypad interface GPIO 08 KEYIN3 GPIO 16 Generic digital signal Keypad interface GPIO 09 In the case that a customer application is implemented on the data module and M2M software is integrated on the data module is possible to have the maximum number of GPIO interface 13 otherwise
28. TE have to be IP packets put into PPP frames IP packets are generated by an application on the DTE and should follow rules of a TCP IP stack in order to understand TCP IP architecture and application sockets a complete discussion can be found in 1 The module extracts IP fragments from the PPP frames and delivers them through the GPRS infrastructure as the next diagram reports TM1 User Manual v1 2 Application DCE Teltonika module IP relaying GPRS protocol stack Radio layer serial line Application S BSS GPRS network IP Packets are delivered to an Application Server which is attached to a Packet Data Network IP based To establish the IP packet transfer the module requires context activation to the GPRS network 2 TM1 User Manual v1 2 6 3 2 Context activation In order to perform context activation context info should be stored by the module Context info are managed by the module with the AT CGDCONT AT CGQMIN AT CGQREQ commands see 11 for a detail reference Usually the AT CGDCONT 1 IP provider apn xx is sufficient but be sure to have all of the necessary context info from the GPRS provider A DTE application like the Windows dial up or Linux pppd establishes the PPP traffic and let the Windows TCP IP stack to be able to prepare IP packets over
29. a serial data line Name PIN I O type Description SCL 35 O Generic digital signal Serial Clock Line SDA 36 I O Generic digital signal Serial Data Line 2 bus interface are available to the user only if M2M software is integrated on the data module Note M2M applications for GSM module are created in Teltonika 5 1 9 Electrical Characteristics of SMD connector pins TM1 GSM GPRS module is not protected against ESD in general Consequently it is subject to ESD handling precautions that typically apply to ESD sensitive components Proper ESD handling and packaging procedures must be applied througout the processing handling and operation of any application that incorporates the TM1 GSM GPRS module ESD protection is to be provided and verified on the final product that incorporates TM1 GSM GPRS module as a component 5 1 9 1 Absolute maximum ratings for input supply power voltages type Name Min Max Module Supply VBAT 0 3V 5 5 V Module Charge VCHARGE 12 5 V TM1 User Manual v1 2 Stresses above those listed here may cause permanent damage to the device Exposure to absolute maximum rating conditions for extended periods may affect device reliability 5 1 9 2 Absolute maximum ratings for input signal voltages I O type Min Max Generic digital signals 0 3 V 3 6V SIM interface signals 0 3 3 6 V Analog signals 0 15 V
30. ay to perform a context deactivation by the user DTE is through the PPP LCP termination packet The DTR ON to OFF transition usually is the last chance if the PPP daemon in the DTE blocks for different reasons 2 O S like Windows ignores the CD line if it does not switch from OFF to ON or it is ON from the poweup i e the context activation can be done anyway without this line too Other O S like Linux can ignore this line anyway 6 3 3 1 GPRS On line command mode A special meaning of the amp D value is provided in the module for the sequence during a GPRS data transfer this is outside the specification 4 8 9 scope The lead to a context deactivation during a GPRS data transfer session for the AT amp DO AT amp D1 values please note that the return to on line command mode is provided for each amp D value during a CSD data call 8 9 A different implementation for the is done with the amp D2 value GPRS data transfer is escaped and system returns in the on line command state The character is mandatory before the sequence for the GPRS data transfer escaping please note the slight difference in comparison with the CSD data call escaping Please note that the command can be used when the PPP is established unpredictable result are reported if it is used after the CONNECT string before the PPP is established The ATO command is used to resume the GPRS data transfer session During the on line command mode diff
31. cations system Phase 2 AT command set for GSM Mobile Equipment ME ETSI 100 916 v 7 6 0 2001 03 4 GSM 07 60 Digital cellular telecommunication system Phase 2 GPRS Service description stage 2 5 GSM 09 61 Digital cellular telecommunication system Phase 2 GPRS Service Interworking between the Public Land Mobile Network PLMN supporting GPRS and Packet Data Networks PDN 3GPP TS 09 61 version 7 5 0 Release 1998 6 3GPP TS 127 005 Technical Specification Group Terminals Use of Data Terminal Equipment Data Circuit terminating Equipment DTE DCE interface for Short Message Services SMS and Cell Broadcast Service CBS V4 2 1 7 3GPP TS27 007Technical Specification Group Terminals AT command set for User Equipment UE V3 11 0 8 ITU T V 25ter ITU T V 25 ter Recommendation Data Communications over the Telephone Network Serial asynchronous automatic lialing and control 9 ITU T Recommendation V250 05 99 10 ITU T Recommendation V24 02 2000 List of definitions for interchange circuits between Data Terminal Equipment DTE and Data Connection Equipment DCE 11 ITU T T 32 ITU T Recommandation T 32 Asynchronous Facsimile DCE Control Service Class 2 TM1 User Manual v1 2 7 Annex 1 Circuit 108 2 behavior for the different amp D summarizing table CSD GPRS DTR On to Off DTR On to Off in data state in data state amp DO Command mo
32. cters to the DTE DTE remote DTE communication raw character based can continue indefinitely Raw character stream can be a PPP packet stream i e IP network traffic is possible from a DTE to a remote Internet provider equipped with a DCE which deals with the local module attached to the DTE The provider forwards the IP packets of the DTE to the Internet to a remote IP server The CS call can be hang up from 1 the user the DTE makes one of the next operations o Sends ATH to the DCE in AT on line command mode o DTR transition ON to OFF with AT amp D2 status see reference 8 9 and annex 1 for a summary of the AT amp D behavior 2 the network or remote DCE the DCE takes the next actions in sequence o puts serial line DCD to OFF o sends NO CARRIER string to the DTE 6 4 2 Incoming data calls The data module can accept an incoming call through the ATA command 3 please note commands like the AT CRC 1 can be used to decide about the kind of call voice or data this is out of the scope of this document Next operations are relevant to accept an incoming call 1 During the incoming call the module RI line switches from OFF to ON and from ON to OFF with a duty cycle 4 1 as reported by the next figure TM1 User Manual v1 2 1s RI ON time RI OFF 0 5 10 15 s N The module sends the RING string to the serial port at constant time intervals not correlated with the RI ON action The DTE attached to
33. de Data state Context deactivation Context deactivation amp D1 Command mode Command mode Context deactivation Context deactivation amp D2 Command mode Cleardown call Command mode Context deactivation with limitations 8 Annex 2 Incoming GPRS context activation The 3GPP specification theoretically provides context activation from the network something like a CSD incoming call but most of the GPRS providers do not implement this service Currently the module does not allow network context activation too and the protocol stack rejects any network activation request
34. e AoC TM1 User Manual v1 2 Calling Line Identification Presentation CLIP Calling Line Identification Restriction CLIR Connected Line Identification Presentation COLP Connected Line Identification Restriction COLR Unstructured Supplementary Services Data USSD Network Identify and Time Zone NITZ 4 1 3 AT command support The modem functionalities and services are provided through a rich serial AT command interface Standards of AT commands that are supported on the module are e GSM 27 005 e GSM 27 007 e Proprietary AT commands For more details on the commands list and their syntax refer to AT commands Manual more examples are described in chapter 4 1 4 Other basic features The following indications and functionalities are supported through the interface of AT Commands e Display of Called Number Indication of Call Progress Signals Country PLMN Indication Short Message Indication and Acknowledgement International Access Function Service Indicator Dual Tone Multi Frequency DTMF Subscription Identity Management Service Provider Indication Abbreviated Dialing Power on external input 4 2 Voiceband The data module provides the following audio interfaces e Amicrophone input e Ahigh power speaker output e 1DAI POM interface Through the mother board the following devices can be used to realize a phone call with TM1 Data Module e Handset e Headset Moreover t
35. e for Li lon batteries is 4 2V e Over Voltage The over voltage protection is done by FW of baseband for a fast switch off and from the battery driver for a SW intervention to slightly overcharge the battery and then switch to trickle charge 4 5 3 3 Charging overview Following pictures shows the overall charging process The battery is a 600mAh Li lon accumulator Nominal Voltage is 3 7V TM1 User Manual v1 2 Battery Charging performance of N709 Voltage and Capacity Estimation OV 4 25V Vinax 4 2 V Perea gt aera ee 7 Oo rd 44304 ded RE 5 ee R 100 os DE LM sab odo s nas PES 95 gt gt E gt Nom 3 7V oO s 50 ue Aa S sS SSS d 10 00 00 00 15 00 30 00 45 01 00 01 15 01 30 01 45 02 00 02 15 Time hh mm Figure 4 6 Voltage and Capacity The Figure 4 6 shows the diagram of Voltage red line and Capacity blue dashed line The Vcell green dashed line is the estimation of the internal voltage of the capacity model used in driver for estimation Error Reference source not found According to the graph is visible that about every 3 minutes the charging process is stopped to allow the capacity estimation This to prevent the overvoltage that normally occurs when a battery is under charge TM1 User Manual v1 2 Battery Charging performance
36. ective M2M Machine to Machine ME Mobile Equipment MIDI Musical Instrument Digital Interface MS Mobile Station MSC Mobile Switching Centre NOM Network Operating Mode NTC Negative Temperature Coefficient PA Power Amplifier PBCCH Packet Broadcast Control Channel PC Personal Computer PCCCH Packet Common Control Channel PCM Pulse Code Modulation PCS Personal Communications Service PDU Protocol Data Unit PDP Parallel Data Processing TM1 User Manual v1 2 Acronym Meaning PICS Protocol Implementation Conformance Statement PIN Personal Identification Number PIXIT Protocol Implementation Extra Information for Testing PLMN Public Land Mobile Network PMU Power Management Unit PPP Point to Point Protocol PPS Protocol and Parameter Selection RAM Random Access Memory RF Radio Frequency RLP Radio LINK Protocol ROM Read Only Memory RTC Real Time Clock RX Receiver R amp TTED Radio and Tele Terminal Equipment Directive SAW Surface Acoustic Wave SCCU Standby Clock Control Unit SIM Subscriber Identification Module SMA SubMiniature version A connector SMS Short Message Service SPI Serial Peripheral Interface SSC Serial Synchronous Interface Controller SW Software TCH Traffic Channel TCP Transmission Control Protocol TS Technical Specification TX Transmitte
37. erent AT commands can be sent but some limitations are present e data calls in GPRS on line command mode cannot be granted please activate the AT CRC 1 mode order to identify the kind of call and reject data incoming calls if GPRS is in the on line command mode e the MUX functionalities cannot be used in cooperation with the GPRS on line command mode An important note about how to use this feature A Windows dial up application which is using a DTE serial port cannot send by itself a sequence i e this kind of feature has not been thought for standard usage Please note that some customers provide specific implementations not necessary in the Windows environment to send at the same serial port of the dial up application or they use an external hardware to multiplex two different DTE serial ports attached to the same module port Anyway for experimental purposes to check this behavior with a DTE a hyper terminal application can send a on a different serial port than the dial up one Switch by hand the cable from the dial up associated serial port to the hyper terminal port Send the an OK is the module answer then AT commands can be delivered to do different operations At the end type ATO a CONNECT is received switch back again to the dial up port and the Internet data traffic can be resumed by the DTE 6 4 CSD data calls 6 4 1 Outgoing data calls To establish a data call the DTE can send the ATD lt number gt
38. f the baseband is performed in the same way 4 4 1 Current consumptions Current consumptions of TM1 module are reported in the following pages Status Average Current Power OFF lt 90 pA Idle Mode lt 2mA Telephony GSM lt 300 mA Telephony DCS PCS lt 250 mA GPRS 4 1 attach mode lt 2mA GPRS 4 1 TBF mode 850 900 MHz lt 450 mA GPRS 4 1 TBF mode 1800 1900 MHz lt 450 mA A pins description of module that is enabled to supply the Data Module is reported below Name type Description VBAT 1 PWR From 3 5 to 4 2 V Typ 3 8 V Should be connected with pins 2 51 52 VBAT 2 PWR From 3 5 to 4 2 V Typ 3 8 V Should be connected with pins 1 51 52 GND 3 PWR Ground Should be connected 6 17 42 45 47 49 GND 6 PWR Ground Should be connected 3 17 42 45 47 49 GND 17 PWR Ground Should be connected with pins 3 6 42 45 47 49 50 GND 42 PWR Ground Should be connected with pins 3 6 17 45 47 49 50 MIC GND 45 PWR Ground Should be connected to microphone GND GND 47 PWR Ground Should be connected with pins 3 6 17 42 45 49 50 GND 49 PWR Ground Should be connected with pins 3 6 17 42 45 47 50 GND 50 PWR Ground Should be connected with pins 3 6 17 42 45 47 49 VBAT 51 PWR From 3 5 to 4 2 V Typ 3 8 V Should be connected with pins 1 2 52 VBAT 52 PWR From 3 5 to 4 2 V Typ 3
39. gotiation DCE deals with DTE PPP DCE requires context activation to the network Network activates the context and assign an IP address to the module DCE sends the IP network address to the DTE in order to make the DTE part of the IP network DTE acknowledges the IP address and consider PPP link UP DCE PPP link is UP DTE sends IP packets to the DCE in order to be delivered to a remote IP server DCE sends to the DTE packets received from the network from remote IP servers This DTE DCE communication can continue indefinitely 6 3 3 Context deactivation Deactivation of the context permits to switch off the IP relaying phase the IP data traffic and the module can return to the AT command mode When the IP data traffic is established the deactivation is possible 1 from user the DTE follows at least one of the next actions a sends a PPP packet called LCP termination request Windows O S and Linux pppd follows this strategy b sends a after a complete PPP packet where complete means that it is terminated with the char Ox76 c puts the circuit 108 2 DTR from ON to OFF 2 from the network the module takes the next actions in sequence a sends the PPP packet LCP termination request b puts the CD to the OFF state after the LCP termination acknowledge from the DTE or after a timeout if the DTE does not take actions c sends NO CARRIER string to the DTE Please note TM1 User Manual v1 2 1 The smart w
40. here is the possibility to realize phone call in hands free mode through a loudspeaker All these devices handset headset and loudspeaker are connected to the data module via QFN pins and Mother Board 4 2 1 Audio Power Amplifier The audio power amplifier can be used as a voice amplifier for the hands free functionality and as a melody player amplifier for ringer functionality see the next sections The melody player could be the Midi synthesizer or the tone generator In order to minimize the clipping of the audio signal the polarization voltage can be adapted to the voltage supply battery voltage NOTE To be noticed that this output can be used both for a voice call and for the ring tones and could be dangerous for the ear of the user if the volume was set to a high volume TM1 User Manual v1 2 4 2 2 Handset and Headset Mode A headset and a handset could be connected to the mother board to perform a voice call refer to the mother board description for the procedure that must be followed for the connection of these devices The normal voiceband functional mode of the data module is completely handled by baseband e The microphone signal comes from the audio device and is connected to MIC inputs of baseband there is no specific pin for the ground of the microphone e The uplink path of the microphone can be muted e The ground of the microphone must be connected to the ground of the mother board if the mother b
41. ies of power saving are the following 1 Reduce base min current consumption 2 Minimize full speed running periods minimize power saving on off switching 3 Reduce max current consumption These points are reported in the following figure Battery Life Test Idle 65 1800 150 100 200 400 600 800 1000 1200 1400 1800 time ms Figure 4 8 Power saving priorities More details related to the power saving and the serial port are described in chapter 6 This functionality can be disabled by the user through an AT command more details on TM1 AT Commands ManualError Reference source not found TM1 User Manual v1 2 47 SMS SMS Classes that are supported by TM1 Data Module are 0 1 2 and 3 Mobile originated as well as mobile terminated SMS are supported Others SMS features that are implemented in TM1 Data Module are reported in the following e SMS CB Cell Broadcast SMS CB Concatenated SMS Text and PDU mode are supported Reception of SMS during circuit switched calls Reception of SMS via GSM or GPRS SMS SIM storage is provided TM1 User Manual v1 2 5 User Interfaces An overview with available interfaces of TM1 Data Module is reported below NMW 9 00000001 201 SMD Connector Figure 5 1 TM1 Interface In following section a pins description of connectors mounted on the data module will be reported T
42. ion BSS Broadcasting Satellite Service CB Cell Broadcast CBCH Cell Broadcast Channel CGU Clock Generation Unit CS Coding Scheme CSD Circuit Switched Data DAI Digital Audio Interface DC Direct Current DCE Data Communication Equipment DCS Digital Communications System DCXO Digital Controlled Crystal Oscillator DL Reception DSP Digital Signal Processing DTE Data Terminal Equipment EBU External Bus Interface Unit EDGE Enhanced Data rates for GSM Evolution EEPROM Electrically Erasable and Programmable ROM EGSM Enhanced GSM EMC Electromagnetic Compatibility Electromagnetic compatibility and Radio spectrum ERM Matters TM1 User Manual v1 2 Acronym Meaning ESD Electrostatic Discharge ETSI European Telecommunications Standards Institute FFS Flash File System FOAT Firmware Over AT commands GND Ground GPIO General Purpose Input Output GPRS General Packet Radio Service GSM Global System for Mobile Communication HDLC High Level Data Link Control HW Hardware JTAG Joint Test Action Group 2 Inter Integrated Circuit IIR Infinite Impulse Response IMEI International Mobile Equipment Identity Input Output IP Internet Protocol ISDN Integrated Services Digital Network ISO International Organization for Standardization LCP Link Control Protocol LVD Low Voltage Dir
43. l resistance Parameter Svwmbo um Un LumtontoambenlU aa OW Junction toamblent f Rea t w Junction to ambient Rea 69 NOTES a For a device surface mounted on 15mm x 15mm x 1 6mm FR4 PCB with high coverage of single sided 1oz copper in still air conditions b Mounted on 25mm x 25mm x 1 6mm FR4 PCB with a high coverage of single sided 2 oz copper in still air conditions ic Mounted on 50mm x 50mm x 1 6mm FR4 PCB with a high coverage of single sided 2 oz copper in still air conditions d As above measured at t lt 5secs Issue 2 February 2007 2 www zetex com Zetex Semiconductors ple 2007 TM1 User Manual v1 2 100 LII KH N Ill HII N fee H ee KI THU TITEL on im 10m 100m 1 10 100 1k Pulse Width s Pulse Power Dissipation Maximum Power VV TM1 User Manual v1 2 4 5 3 TM1 Charger SW driver functional overview Basically the SW driver of the CHR module controls the external MOSFet through the baseband PMU register and some ADC peripherals which measure Voltages and Charger Current The Charging current is obtained by measuring the Voltage difference dropping through an external resistor of the value of 0 15Ohm Since the resistor is quite small the measurement is affecter by low accuracy anyway
44. nical characteristics The number of RF shield required is 1 The dimensions of the data module without shields are reported in the following e 32 00 mm x 20 80 mm x 2 87 mm 20 80 gt 0 05 26 67 32 75 0 10 a N ei _ 2 87 0 05 Figure 4 4 TM1 Mechanical Dimensions The weight is less than 5 g No natural rubbers no hygroscopic materials nor materials containing asbestos are employed TM1 User Manual v1 2 44 Power supply TM1 Data Module can be supplied by a power supplier connected with the mother board The voltage is provided to the Data Module through the data module pins that provides a voltage value VBAT on pins 1 2 51 52 The range of VBAT is between 3 5 V and 42 V while typically its value is 3 8 V The minimum current that must be provided to the data module through the power supplier is about 2 A the maximum value is 2 5 A peak Description Min Typ Max Supply voltage 3 5V 3 8 V 42V The VBAT voltage is connected with the power management part of the baseband chipset that supplies all components of the data module and derives all needed voltage levels to supply the different circuit parts The power amplifier is supplied directly by VBAT voltage The supply domain might have different setting and they are programmed via a dedicated EP I2C bus implemented with SW driver by baseband at startup All the other programming o
45. o are supported with user definable preferred service between GSM and GPRS Further functionalities that are implemented on the data module are Mux protocol 27 010 and Firmware Over AT commands FOAT 3 1 Certification TM1 GSM GPRS Data Module is certified by CE approval report and Radio amp Telecommunications Terminal Equipment Directive R amp TTED report Hereby Teltonika declares that this GSM GPRS Data Module is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC The directives that are followed for this data module are described below 3GPP TS 51 010 1 rel 99 Technical Specification Group GSM EDGE Radio Access Network and Mobile Station MS conformance specification EN 301 489 01 V1 4 1 Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 1 Common technical requirements EN 301 489 07 V1 2 1 Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 7 Specific conditions for mobile and portable radio and ancillary equipment of digital cellular radio telecommunications systems GSM and DCS EN60950 Standard for safety of information technology equipment to protect against excessive current short circuits and earth faults in primary circuits protective devices shall be included either as
46. oard is connected to the data module e Voice output from baseband is connected to module with AUON and and then to the external audio device Warning excessive sound pressure from earphones and headphones can cause hearing loss 4 2 3 Hands free A true hands free functionality is implemented using high power loudspeaker MS microphone and appropriate DSP algorithms for voice band handling Echo canceller and Automatic Gain control This functionality is managed via Software The product is equipped with a power audio amplifier that can drive with a gain of 2 7dB an external 8 ohm speaker with 250 350 mW peak With viva voice operation is intended the possibility to realize a phone call with a loudspeaker and a microphone The audio signal on the loudspeaker is a mono signal In viva voice mode of operation the output signal of baseband is amplified by the built in Audio amplifier of baseband and then applied to the Loudspeaker output outputs are AUON and AUOP The microphone signal is the signal that comes from the input BIAS MIC The table below shows the pin number related to the analog audio signals Name PIN I O I O type Description AUOP 43 O Analog Balanced power audio out AUON 44 O Analog Balanced power audio out MIC 46 Analog Handset microphone bias MIC GND 45 PWR Handset microphone ground 4 2 4 Ringer Mode The data module support 40 tones polyph
47. ompany few employees from NOKIA joined Teltonika s staff Presently they successfully develop activity of new companies Teltonika International GmbH D sseldorf and Teltonika International Oy Helsinki User Manual v1 2 About US Our vision is to provide added value for people and companies by creating electronical devices and solutions which are basedon the latest achievements of science and technology Weaim to help people to integrate the latest technologies in real life what would bring more cosiness comfort freedom of mobility and security to their everyday life We seek to make all our solutions an inconceivable patt of people lives TM1 User Manual v1 2 TABLE OF CONTENTS 1 Document MISSIQOnm u 3 2 GIOSSANY PEE 3 3 Scope neq Reed Da qat nee iu Oe Ense 6 3 1 Certifieatiori E 6 4 Product functions oe ee ped avi deu pe SEU qeu dede nodi clc ped de Ed 8 4 1 n TT 8 4 1 1 GSM GPRS modem 8 4 1 2 Supplementary SerVI688 hua tesi ninh 8 4 1 3 support uu 9
48. onic ring tones The ringer tones are generated baseband built in generator and then they are amplified by internal amplifier before being applied to loudspeaker through the pin of module AUON and AUOP For ringing the gain of the audio amplifier is 1 2 dB Polyphonic ring tones can be generated by an internal MIDI synthesizer which runs at 16 or 32 KHz sample frequency and can sum up to 40 voices at 16 kHz sampling rate The synthesizer output is only mono and cannot be mixed with TCH voice path the two are mutually exclusive To perform in band alerting during TCH with voice path open only Tone Generator can be used The output samples of the synthesizer are post processed by two modules e High Frequency Shelving Filter This module is implemented as a first order IIR Filter which is mainly used for high frequency boost in audio signals Its transfer function can be controlled by 4 filter coefficients e Audio Compressor The audio compressor is a device for manipulating the dynamic range of mono or stereo audio signals The audio compressor can be controlled by 14 configuration parameters Polyphonic standard format supported TM1 User Manual v1 2 The MIDI driver can play e MIDI files conforming to o General Midi Level 1 0 with file format O and 1 o General Midi Lite 1 0 e SPMidi Scalable Polyphony MIDI files conforming to o SPMii 1 0 e iMelody files conforming to o Melody v 1 2 specifications 4 2 5 Audio
49. power on reset starts the LRTC regulator The system is started by the PMU state machine If the batteries are deeply discharged that means battery voltage is between 0 V and 3 1 V and the device is off or software has not disabled pre charging the charger circuits starts pre charging beginning when an AC DC wall adapter is connected to TM1 In pre charging the charge switch is pulsed with 100 Hz and a duty cycle of 12 5 That means the average charge current is reduced to avoid overheating of the charger parts and to gentle charge the deeply discharged batteries Pre charging is hardware controlled and continued as long as the software Switches off precharging If software is running it can switch off the pre charging function That means the hardware will not start any charging after an AC DC wall adapter was connected The software is always informed when charger is connected amp disconnected so the charge switch main controller of the charging process can be controlled by software according to the software charge algorithm The duty cycle of the charge current never reach 10096 so when the software closes the charge switch transistor T1 is conducting it is not closed for 100 of the time but still pulsed with a 100 Hz clock and its on time is gt 99 of a period The remaining off time is used to check if the AC DC wall adapter is still connected since detection is critical when charging switch is closed TM1 User Manual
50. r UART Universal Asynchronous Receiver Transmitter UL Reception USB Universal Serial Bus TM1 User Manual v1 2 3 Scope of Product TM1 is a small light weight and low power consumption module that enables digital communications services on GSM GPRS networks for machine to machine user to user or user to machine wireless applications These GSM GPRS data modules are developed in compliance with internal and normative certification requirements In particular they will be certified by CE approval report 99 5 EC and Radio amp Tele Terminal Equipment Directive R amp TTED report following the following standard regulations e 3GPP TS 51 010 1 rel 99 Radio spectrum e EN 301 489 1 and EN 301 489 7 EMC directive 89 336 CEE e EN 60950 LVD Directive 73 23 CEE Requirements for lead free components are imposed and satisfied The product implements a dual band MS it can be configured to operate in the frequency bands either EGSM 900 MHz and DCS 1800 MHz European bands or GSM 850 MHz and PCS 1900 MHz America bands The operative temperature range goes from 20 to 85 C The supported power classes for both voice and data services are e Class 4 2W for GSM EGSM bands e Class 1 1W for DCS PCS bands The product implements a Class B Mobile Station this means the data module can be attached to both GPRS and GSM services using one service at a time Network operation modes t
51. requency bands either GSM 850 MHz DCS 1800 MHz EGSM 900 MHz PCS 1900 MHz The supported power classes for both voice and data services will be e Class 4 for GSM bands e Class 1 for DCS bands The product implements a Class B Mobile Station this means the data module can be attached to both GPRS and GSM services using one service at a time Network operation modes to are supported with user definable preferred service between GSM and GPRS Optionally paging messages for GSM calls can be monitored during GPRS data transfer in not coordinating network operation mode NOM II III PBCCH PCCCH logical channels are supported as well as CBCH reception CBCH reception when on PBCCH is supported GPRS multislot 10 is implemented implying a maximum of 4 slots in DL reception and 1 slot in UL transmission and 5 slots on the whole Finally TM1 GSM GPRS module supports e All coding schemes from CS1 to CS4 e Encryption algorithms A5 1 for GSM for GPRS are supported e CS Data calls are supported in transparent non transparent mode up to 9 6 kbps e Bearer service fax Group 3 Class 2 0 is supported Among access interfaces to DTE both V 32 and V 110 are provided 4 1 2 Supplementary services The following supplementary services are provided Call Hold Resume Call Waiting CW Multi Party MTP YY Call Forwarding CF Call Divert Explicit Call Transfer ECT Call Barring CB CCBS Advice of Charg
52. they are sufficient for the purpose due to the intrinsic slowness of the charging process dynamics 4 5 3 1 Charging process phases The algorithm that controls battery charging implement a classic Li lon battery charging process So basically there are 4 phases that occurs 1 Pre Charge at Slow current for deeply discharged batteries 2 Fast Charge at the maximum allowed current 3 Top Charge to complete the over charging of the batteries after the maximum voltage of 4 2 has reached 4 Trickle Charge to maintain the battery at higher level of charge if the External Charger remains connected Pre Charge phase is managed by baseband FirmWare while the others are triggered by the SW driver s state machines 4 5 3 2 Charging parameters The charging and battery driver are characterized by some parameters that can modify his behavior or performance even if within strict limits Basically the process is controlled by the monitoring of Voltage Current and Temperature directly measured by the EGV ADC peripherals These measurements can influence other quantities e Capacity Estimation this quantity represents the remaining battery life expressed as a percentage value 100 is full 0 empty See below for further details e Shutdown Voltage the battery driver can send a signal to issue a system SHUTDOWN This feature can be enabled or disabled e Vmax This voltage determines the change of state FastCharge Top Charg
53. tion battery voltage monitoring Protection against over voltage integrated on the data module Pre charging e g for deep discharged batteries Software controlled charging supported In an electronic switched charger the charge current is usually constant and defined by the electronics control in the charger The shortest charge times can be reached with constant current charger The charger circuit can handle the normal AC supply frequency range from 50 to 60 Hz dedicated SW must be implemented in the TM1 module The battery over voltage detection is implemented for emergency switching off charging if e g the batteries are removed during charging or battery protection The over voltage level can be set by a register bit to 4 47 V The battery voltage monitoring function is implemented for system start up and shut down It delivers the input signals for the PMU state machine The shut down feature is implemented as an emergency shut down A controlled shut down should be done by software after measuring the battery voltage using the measurement unit TM1 User Manual v1 2 charger detect BC 847 40 Charge Switch Control ap VBAT E Observation batteries NiCd NiMH 3 1V 5 5V Minimum value 10 pF Recommended value 100 Phone external parts Chip internal Figure 4 5 Charger System The power on reset is released if the battery voltage exceeds typical 2 5 V 2 25 V 2 85 V The
54. to board connector of the serial ports Name PIN I O I O type Description DSR 23 O Generic digital signal Data Set Ready RI 24 O Generic digital signal Ring Indicator DCD 25 O Generic digital signal Data Carrier Detect DTR 26 Generic digital signal Data Terminal Ready CTS 27 Generic digital signal RTS DCE RTS 28 O Generic digital signal CTS DCE RXD 29 Generic digital signal RX DCE TXD 30 O Generic digital signal TX DCE To be noticed that it is possible to have a second serial port for debugging purposes through a specific configuration of the SPI interface more details in 5 1 7 For more details about serial port refer to chapter 6 5 1 3 1 TM1 has integrated the functionality supported by GSM 27 010 multiplexer protocol It is a data link protocol layer 2 of OSI model which uses HDLC like framing virtual data channels and channels control procedures The MUX protocol can run over a physical link e g UART existing between the wireless modem and an application processor embedded system or PC This functionality allows user applications to access the GSM GPRS modem stack in concurrent way by emulating virtual communication channels The MUX process is responsible for e Control of virtual channels e Conveying user data over virtual channels Mux protocol 27 010 is implemented only on ASCO serial port 5 1 4 GPIO All General
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