TM3 User Manual
Contents
1. om e mcm mono m 1 UO Ld E E E EE E E T 1 1 1 1 1 gt i 1 1 1 1 i 1 1 I 1 1 r T T T T qm 077710 7177773 ee _____1_____1_____1__________1_ Ld cass Lass asses cassa asas assa _ _________ 1 1 1 E 3 T 1 1 1 1 C 11 11 __1 __ __1 Old d pq res cad MINE 5 o 7 a 4 i i i i 2 i pa ESSEE MINEN 5 1 1 1 1 a t i bum i i i i RR cms Genin c i i i i i i i i i i 1 1 i i i i i i i 1 f 1 4 i H H o Y 1 Tw Ea U i fl i i a a 1 i i I i 1 i 1 i i 3 Ta 8 8 o i i i i i i i i i 1 i i i 1 i i i i i i a i i i T o D um2. DTR 108 2 gt 4 DSR 107 DCE Modem 4 DCD 109 e DTE Computer 4 RI 126 e 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 Please note he 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 A 2 3 5 data communication A 2 3 1Introduction 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 DTE 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 rep
3. gt i i i i i i i i i i i i i 1 4 4 4 4 4 4 4 5 5 i j isi 1 1 T TY J 1T c 1 i i i H i i i H i i ee 1 i i i i i i i i 1 i 1 i cee dee eee dee mmm mom om dun a mm mm o a st PRSE NE TENUES aru sape NIUNA 11112121 H H i H 1 1 1 1 1 I I E 1 1 E 1 1 I 1 1 1 I T emm mm E e e 1 1 1 1 E i i 1 1 i 1 E 1 1 1 I E 1 1 1 I E O i i i i 1 1 1 E 1 E 1 1 4 4 4 4 4 4 4 4 4 dede 0 1 1 1 1 1 1 I 1 1 E j 4 1 1 1 E i i i i o d rd d d d 3g d i c 1 l Hd 1
4. DCE module DTA functionalities CS data UART serial line 1 5 GSM network Application Radio layer WASS wired modem Application DTA functionalities al serial line DTE When the remote DCE accepts the data call the module DCD line is set to ON and the CONNECT lt communication baudrate gt string is returned by the module At this stage the 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 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 Pleas
5. snas EM 2 REMIS nd 1 1 1 1 1 1 1 1 1 1 T 1 ae 5 NEN D ee ee en ee oe ee ee ee ee ee a a MEM 1 1 1 1 1 1 r 1 1 1 1 r r 1 1 1 LLLI 4 1 1 LI I mici T p qp qp 4 4 4 I T 4 4 4 4 JfF 2 1 1 1 1 4 a qmm 1 E 1 MEME ERE EE 5 0 d P d VW e m mm mum i i 1 1 1 i i i i i i i i i i i i 1 1 lt lt uc ab i i C i i i i i i i i i i i i us i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i 1 i i i i 1 i L i i 0 1 e E I c E c NEM A M 1 i i i i i i i i i i 53 a 7 71 I que SS
6. gt mmmmmmmm rapa cm nor 2 a a i i i i i i i i i i i l i i i i i i L a 4 i E e demere mendaces ics adsense ee 4 i i i i i i i i i i i 1 1 i qum e m m tr m n m m m n m 0 4 a i 1 21 ae na nn ns nO Ds TOLLZMLENZILNUECLTMLE c i i i i i i i i i i i i i i 2 GIk a a n P m m m m t 1 4 i i i i i i i i i i i i qe SSS Se Se eus futs etie x ud iR 4 4 1 Be H 1 1 1 1 1 1 1 1 1 1 1 dmm mmm mmm eee r M qu 1 1 1 1 i i i i 1 i i i i i 1_ i 1 i 1 i i 1 4 1 lt 1 4 4 4 gt 1 1 1 a
7. d c 1 1 1 LEN NM AN N N gt amd TTE To He E UB 22071272 272 dlc Rr CT D 2 1 Q 2 NE NEM oO 9 4 4 4 4 4 4 i i i i 1 i I F E E E d i i i i i i i i i i S es T i i i i i i i i i i i i 1 i i i i i E i i i i BRI 5 1 1 icon ESE m 1 71 74 qa 4 z 1 5 qme 1 1 4 4 4 4 4 4 4 4 4 4 1 1 1 E E 1 cun doux n We m iin i VO xm decoro V TUM 22267 1 MEE TES
8. Outgoing voice OK Voice call is accept from network ATH Hang up OK A 1 4 Data Call CSD Mode Al CBST 7 0 1 set data call to 9600 RLP analog OK A I D XXXXXXXXXXXXX outgoing data call CONNECT 9600 Connect to remote analog modem 4 38 7 lt A002 41718 yy Av 3 418 F 80 lt Al CBST 71 0 1 set data call to 9600 RLP V 110 ISDN OK A T D xxxxxxXXXXXXXX outgoing data CONNECT 9600 Connect to remote ISDN modem PR Klo A 1 5 Internet Connection in GPRS Mode AT CGATT Check if the module is registered to GPRS service CGATT 1 OK AT CGDCONT Z1 IP Define the PDP context parameters OK AT CGDCONT CGDCONT 1 IP apn 0 0 0 0 0 0 OK ATD 99 1 CONNECT 2 5 0 amp Y NO CARRIER A 1 6 SMS Management AT CMGF 1 AT CMGS XXXXXXXXXXXXX gt SMS TEXT MESSAGE 0123456789 lt CTRL Z gt CMGS 0 OK AT CMGS XXXXXXXXXXXXX gt SMS TEXT MESSAGE 0123456789 lt CTRL Z gt CMGS 1 OK AT CMGL Initiate the GPRS connection lt Disconnect with sequence lt Set the text mode as the format that will be used To be set before of
9. OA SCONE ___6_6_ 19 6 2 Board to Board Cone 19 6 2 1 Switching on of the data nennen nnnm nnn nnn nnn nnns nnns nnns 22 6 2 2 211 Isis ERN 23 6 2 3 SOIT ud cM SEM EIN DU LIE SE EI IP DIM 23 6 2 4 Bis Sim RIS HORT 24 6 2 5 GPIO 25 6 2 6 ADC interface Measurement interface 26 6 2 7 Bet i cea ec eb cp eg 26 6 2 8 ns RIS 26 6 2 9 Electrical Characteristics of Board to Board connector 27 gt 1 NIE ee Cee 29 7 1 29 Al AFCommmands examples 1 ere ee 30 A 1 1 ERE Tm 30 E 30 Pleo OUTGOING eee _ ________ 31 Pole Date Call n 31 1 5 Internet Connection in GPRS 31 1 SMS Management 32 A 1 Phonebook
10. 1 80 V leve 2 00 V 2 85 V 3 30 V VSIM 2 85 V USB interface signals TELTONIKA 7 Reference 7 1 Internal 1 AT Commands Manual 2 Features List 1 5 5 For more details syntax of commands refer to AT commands Manual 1 In the following are reported more examples with AT commands in italic are highlighted the commands that are written by the user 1 1 Register on the Network AT OK 1234 Insert the PIN number if needed you should insert the PIN of your SIM card 1234 is written as example OK ATl COPS 0 lt Register the phone on the network OK AT CHEG Verify registration CREG 0 1 OK 5 lt Check signal intensity CSQ 18 99 OK 52 lt Read operator name COPS 0 0 LT BITE GSM OK A 1 2 Incoming Voice Call AT OK 1 lt Activation of Caller line ID presentation OK Call the phone number of the SIM in the TM3 data module RING Incoming Call CLIP 145 0 lt Presentation of Caller ID RING CLIP 145 0 ATA lt Answer to Voice Call OK Talk to your caller using the headset ATH lt Hang up OK 1 3 Outgoing Voce 1 Activation of Caller line ID presentation OK A
11. In the following are reported the input impedance of the audio interface Input impedance between MICP1 and MICN1 50 KOhm typical value Input impedance between MICP2 and MICN2 50 KOhm typical value e Input impedance between MIC BIAS and MIC GND 1 7 KOhm EPPA1B and EPPA2A Output Features e Internal Output Resistance 4 Ohm e differential output between EPPA1B and 2 4 1 Volts and 200 mA e Loads that can be applied to the data module must have an impedance of 16 Ohm or AUON and AUOP Output Features e differential output 5 06 Volts typical value and 529 mA e Loads that can be applied to the data module must have an impedance either of 8 Ohm or 16 Ohm In the following is reported the input impedance on MICN 1 pin continuous line magnitude dash line phase 9 o 2 9 h te 5 bs 5 1 1 1 i Pd E 4 m c Nous apa ge 1 i e a m i i 7 i i i E 4 i i E Q i i i i i i i i i i i i i i quum y e n t n
12. TELTONIKA 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 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 shows opened new possibilities for offering our products and solutions for all world In the year 2005 Teltonika became an international company We became Lithuanian Finnish Company
13. 11 32 E 4 5 2 4 288 4 8 84 5 34 8 A amp d 5 8 P E B is E 5 2 m c 5 D Kan iq e MIC 1 EGoldChip MICHT 2 EGoldChip 101 Jin dec 100 2 20000 5 4 Mechanical characteristics The dimensions of the data module without shields are reported in the following 36 5 mm x 38 6 mm x 3 3 mm without SIM Holder 36 5 mm x 38 6 mm x 5 6 mm with SIM Holder Figure 5 1 mechanical dimensions The weight is less than 10 g 5 5 Power supply TM3 Data Module can be supplied by a power supplier connected with the mother board The voltage is provided to the Data Module through the Board to Board connector that provides a voltage value VBAT on pins 11 13 15 17 The range of VBAT is between 3 5 V and 4 2 V while typically its value is 3 8 V The current that must be provided to the data module through the power supplier is about 2 A peak value Description min Typ Max voltage 3 5 V The VBAT voltage is connected with the power management that supplies all components of the data module and derives all needed voltage levels to supply the different circuit parts Power Amplifier is supplied directly by VBAT voltage Alternatively TM3 data Module can be supplied through a battery The supported type for the battery is Li lon and Li Polymer rechargeab
14. 32 A 2 Serial Port and Data Traffic 33 A 2 1 ein ence serene cnt ein 33 A 2 2 command mode the cece ceccceeeeceeeeeeeeeeeeeeeeeseeeeseeeseeeeseeesseeeseeeeseueesaeeeseesaeeeseueesaess 34 A 2 3 GPRS data ec cececceceececeeeececeeaeceeaeceeaeceeaeaecueaeceeaeceeaeceeaeseeeaeseeaeseeaeseeneseeneaeeneaeeass 34 2 3 1 Introduction to the GPRS IP relaying 34 2 3 2 en ene eee eee 36 2 3 3 eoque m H 36 A24 GPRSOnlinecommind MOC sis 2 oid ab an orn Re odas aeg ra cau aliua ae Fea E 37 20 BOF 2 gt c 37 A 2 5 1 Outgoing data P 37 2 5 2 89 90 18 estet alls Catia UM 39 A26 JPowersavingand CTS handshake ui sanc penc Sv anco dmi aoro uou abus SUC 40 Pf Do Rand Masse 41 2 7 1 116811 N os eT 41 2 7 2 0 6
15. 54 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 6 2 9 2 Absolute maximum ratings for input signal voltages Generic digital signals SIM interface signals USB interface signals 7 25 Analog signals 0 15 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 6 2 9 3 Operating range for input supply power voltages __ Mame min Typ max 6 2 9 4 Operating range for output supply power voltages Name min Test condition use suppy vous aaV SoV 567 0000 ___ VSM 180V 6 2 9 5 Operating range for input signal voltages Generic digital signals 1904 asv O n 0 00 V mE 0 36 V VSIM 1 80 V 0 00 V mE 0 57 V VSIM 2 85 V SIM interface signals m E Q vena cow 200 3 30V VSIM 2 85 Differential Input 0 20 V 988 D4 V USB D Sensitivity Differential Common USB interface signals 0 80 V 2 50 V Range of Sensitivity Mode Range Single Ended 6 2 9 6 Operating range for output signal voltages Generic digital signals 000V 036V VSIM 1 80 V L level 000 0 57 V VSIM 2 85 V interface signals mm 1 26 V 1 80 V 3 30 V VSIM
16. 9 m 41 Circuit 108 2 behavior for the different 40 summarizing 42 4 Incoming GPRS context 42 1 Document Mission TM3 User Manual contains the 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 TM3 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 Weaning Subsystem or attention Cell Broadcast Channel TELTONIKA IMEI International Mobile Equipment Identity Internet Protocol ISDN JTAG Integrated Services Digital Network Join Test Action Group LVD Low Voltage Directive M2M Machine to Machine E Mobile Equipment Musical Instrument Digital Interface MS Mobile Station MSC Multi Slot Class Mobile Originated MS MT TG PA PBCCH PCCCH PCM Pulse Code Modulation PCS DN DU Mobile Station Mobile Terminated On The Go Power Amplifier Packet Broadcast Control Channel Packet Common Control Channe
17. Generic digital signal a Slave eceive SPI compatible Asynchronous Serial interface 0 Generic digital signal Generic digital signal signal Data Data SetReady Data SetReady Synchronous Serial SCLKO Interface Generic digital signal Shift Clock SPI compatible Asynchronous 1 1 ca Generic digital signal Generic digital signal signal RX B I2C bus interface Generic digital signal Clock Line Asynchronous TXD 1 lo Generic digital signal TX DCE I2C bus interface Generic digital signal Serial Data Line Keypad interface 0 KEYOUTO GPIO Generic digital signal GPIO 07 CLKO DAI Digital Audio Interface Generic digital signal DAI Clock Keypad interface E Keypad output pin 1 KEYOUT 1 GPIO Generic digital signal GPIO 08 RXD_DAI Digital Audio Interface Generic digital signal DAI Receive Keypad interface Keypad output pin 2 KEYOUT2 GPIO Generic digital signal GPIO 09 TXD DAI Digital Audio Interface Generic digital signal DAI Transmit KEYOUT3 GPIO Generic digital signal GPIO 10 _ Digital Audio Interface 49 EXTRSTn _ Generic digital signal_ Extemal HWreset 51 MIC GND Audio Interface Analog signal panes
18. Mw Keypad input KEYINO GPIO Generic digital signal GPIO 00 MIC BIAS1 Audio Interface Analog signal Keypad interface TUR Keypad input pin 1 KEYIN1 GPIO Generic digital signal GPIO 01 95 EPPA1B Audio Interface Analog signal audio out KEYIN2 Generic digital signal GPIO 02 audio out Keypad interface 2 3 KEYIN3 GPIO Generic digital signal GPIO 03 59 MIC_GND2 Audio Interface Analog signal none 60 19 GPIO Generic digital signal GPIO 53 MIC_BIAS2 Audio Interface Analog signal 2 GPIO Generic digital signal GPIO 50 AUOP O Audio Interface Analog signal Balanced power audio out CAP05 GPIO Generic digital signal GPIO 90 AUON O Audio Interface Analog signal Balanced power audio out 66 GPIO Generic digital signal GPIO 88 ADC1 Measurement interface ae Analog to Digital Converter 68 EX5IN External Interrupt Generic digital signal Ext Int 5B ADC2 Measurement interface e Analog to Digital Converter 70 CAP22 EX3IN Headset Detect Genericdigitalsignal Headset Detect 80 92 VO X GPIO Genericdigitalsignal GPIO92 ____ TM3 Data Module is mechanical compatible with 60 pin Board to Board Connector CBRBOGOPA2000RO In this case pin numbers that are available goes from 11 to 70 and USB interfac
19. band The operative temperature range goes from 20 to 85 C The supported power classes for both voice and data services are Class 4 2W for GSM EGSM bands Class 1 1W for DCS PCS bands Class ES2 27 dBm for 8 PSK modulation EDGE for GSM EGSM bands Class ES2 26 dBm for 8 PSK modulation EDGE for DCS PCS bands The product implements a Class B Mobile Station this means the data module can be attached to both EGPRS and GSM services using one service at a time Network operation modes to are supported with user definable preferred service between GSM and EGPRS Further functionalities that are implemented on the data module are Mux protocol 27 010 and USB interface 2 0 OTG for Modem profiles and Mass Storage optional 3 1 Certification Requirements TM3 GSM GPRS EDGE Data Module is certified by CE approval report and Radio amp Telecommunications Terminal Equipment Directive R amp TTED report The directives that are followed for this data module are described below 511 10 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 Comp
20. the first operation send 1st SMS send 2nd SMS list all incoming SMS CMGL 302 REC UNREAD xxxxxxxxxxxxx 05 09 27 16 40 36 08 SMS TEXT MESSAGE 0123456789 OK 1 7 Phonebook Management AT CPBR CPBR 1 250 40 0 OK 1 250 AT4 CPBWz1 145 1 3 145 HECOHRD 3 Al CPBR 1 250 CPBR 1 145 RECORD 1 CPBR 3 XXXXXXXXXXXXX 145 RECORD 3 OK Al CPBR 3 CPBR 145 RECORD OK lt Check the available position in SIM Phonebook List phonebook from position 1 to 250 record lt Write phonebook record to position 1 Write phonebook record to position 3 lt List phonebook from position 1 to 250 Read phonebook record 3 2 Serial and Data Traffic Behavior A 2 1 Introduction This chapter contains explanations of the procedures performed by TM3 data module 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 behaviour of the serial port UART in the previous two scenarios both like character data traffic and signal lines status Another behaviour of serial signal lines is described for power saving conditions and software reset In or
21. the software can be customized to enable the interface The table below shows the pin number related to the DAI signals Description RXD 43 Generic digital signal receive DA 45 Generic digital signal DAI Transmit 5 3 8 Audio 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 Adaptive Multi Rate AMR TCH AFS TCH AHS 5 3 9 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 5 3 10 Circuit Description The output signal of 1 1 is amplified by the built in Audio amplifier and then applied to the Board to Board Connector The table below shows the pin number related to the analog audio signals PIN U0 1 GND1 51 Analog Handset microphone reference C MIC 58 Analog Handset microphone bias EPPAIB 55 O Analog Balanced audio out EPPAZA 57 Analog Balanced audio out 59 Analog Headset microphone reference MIC BIAS2 61 Analog Headset microphone bias AUOP 63 O Analog Balanced power audio out _ AUON 65 O Analog Balanced power audio out _
22. 12 14 18 VBAT From 3 5 to 4 2 V Typ 3 8 V Should be connected with pins 11 15 17 Should be connected with pins 12 14 16 From 0 to 12 V Typ 6V e VCHARGE Current limited to 700 mA Should be connected with pin 21 From 0 to 12 V Typ 6V VCHARGE pwr Current limited to 700 mA Should be connected with pin 19 5 5 1 Current consumptions Current consumptions of TM3 module are reported in the following pages 72222 0 rage Current _ 5 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 aren t 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 priorities 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 981000 1 t time ms Figure 5 2 Power saving priorities This functionality can be disabled by the user through an AT command 1 2 areas of power managem
23. 6 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 High Frequency Shelving Filter This module is implemented as a first order Filter which is mainly used for high frequency boost in audio signals Its transfer function can be controlled by 4 filter coefficients 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 The MIDI driver can play MIDI files conforming to o General Midi Level 1 0 with file format 0 and 1 o General Midi Lite 1 0 SPMidi Scalable Polyphony MIDI files conforming to o SPMidi 1 0 iMelody files conforming to o iMelody v 1 2 specifications 5 3 7 Interface For certification testing of audio and vocoder functions the mobile phone has to be connected to the system simulator The Digital Audio Interface between the system simulator and the MS is supported as described in GSM 04 14 specifications Supported modalities are Normal mode Vocoder test e Acoustic test e Voiceband test To be noticed that TM3 Data Module is hardware compliant to DAI interface and optionally
24. A few employees from NOKIA joined Teltonika s staff Presently they successfully develop activity of new companies Teltonika International GmbH Dusseldorf and Teltonika International Oy Helsinki User Manual TM3 GSM GPRS EDGE Module About US Our vision is to provide added value for people and companies by creating electronical devices solutions whichate basedon 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 TABLE OF CONTENTS MR dci 4 ______________________ 4 0 apts gt 671111 9 111211 11 4 1 1 14 RR EN FOGG SUE IAN NERONE 8 4 1 14121815 PRENNENT 8 5 8 5 1 8 5 1 1 GSM EGPRS modem 5 8 5 1 2 E GPRS 22114 8 5 1 3 Supplementary services cua mco dart sic du Va 9 om Rs MN d oo SUDO 0 9 5 1 5 Other basic featur
25. PRS 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
26. Wake up will occur on any interrupt 5 7 5 5 SMS Classes that are supported TM3 Data Module are 0 1 2 and 3 Mobile originated as mobile terminated SMS are supported Others SMS features that are implemented in TM3 Data Module are reported in the following SMS CB Cell Broadcast SMS Concatenated SMS Text and PDU mode are supported Reception of SMS during circuit switched calls Reception of SMS via GSM or EGPRS Voice Message Sending of message delivery report Message validity period support Support of Reply Path SMS SIM storage is provided 6 User Interfaces 6 1 RF Antenna Connector 50 Ohm MMCX connector is provided as antenna connector for GSM EGPRS functionalities To connect the Data Module with an antenna with a SMA connector an antenna adapter MMCX SMA is provided with the Deliverable Package The two types of connector mounted on antenna adapter are MMCX male and SMA female 6 2 Board to Board Connector A 80 pin connector is provided to interface of TM3 module for the power supply SIM interface audio interface 2 x analog 1x digital 12 bus SPI bus 2 x analog in ADC 2 UART serial ports and 30 GPIOs maximum number Pin 79 Figure 6 1 B2B connector pin localization 6 GPIO36 VO 1254 RX Generic digital signal 1251 RX ____ _8 VO 10251 Generic digital signal 12517 ____ _9 9 VO X Genericdigitalsig
27. and 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 in 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 context number DTE sends ATD 99 context number sets the serial ON answer with CONNECT or if something goes wrong DTE starts PPP negotiation 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
28. and mode 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 A 2 6 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 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 15 variable and it depends on parameters like e kind of activity with regards to the network task activity of the softw
29. are 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 5 m time GSM 450 5000 least lt gt 3 least without any activity 2 7 DSR and RI activity A 2 7 1 Incoming SMS The RI line is used to notify an SMS arrival too The RI switches from OFF to ON for 1 second as reported by the next figure 1s RI ON RI OFF 0 5 6 5 SMS incomes A 2 7 2 DSR at power on The DSR line follows the rule in the next figure after the power on ON DSR line OFF 0 2 5 5 Circuit 108 2 behavior for the different 40 summarizing table DTR On to Off DTR On to Off in data state in data state 800 Data state Context deactivation Context deactivation Context deactivation Context deactivation Command mode Cleardown call Command mode Context deactivation with limitations A 4 Incoming G
30. atibility 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 integral parts of the equipment or as parts of the building installation 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 4 Product environment 4 1 Interface SIM card supporting 1 8 V and V cards type B2B connector and optionally on board holder Suyin 254038MA006G505ZL Interface connector for RF output 50 Ohm connector MMCX Edge Mount SMD J01341A0081 80 pin board to board connector CBRB080PA2000R0 5 Product functions The features that are implemented on TM3 GSM GPRS EDGE Data Module are reported in TM3 Features List In the following sections will be described the functionalities integrated in the data module 5 1 Modem 5 1 1 GSM EGPRS modem functionalities TM3 GSM GPRS EDGE module integrates a full featured R4 GSM EGPRS Protocol Stack whose main characte
31. bout how to use this feature A Windows dial up application which is using a DTE serial port cannot send by itself 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 behaviour with a DTE an hyperterminal 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 hyperterminal 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 A 2 5 CSD data calls A 2 5 1 Outgoing data calls To establish a data call the DTE can send the ATD lt number gt 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 TELTONIKA
32. der 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 document is reported an overview of all of the interacting operations necessary to establish a data communication both GPRS and GSM Circuit Switched with the behaviour 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 TELTONIKA 2 2 command mode at the startup As default the module starts with the serial port in AT command mode the behavior can be software configured with different services at the serial port this is out of the scope of 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 9 Tx 103 795 4 Rx 104 e RTS 105 gt 5 106 e
33. e is not available Note If the pin is unconnected it can be left floating TELTONIKA 6 2 1 Switching on of the data module To switch on the data module the pin 56 KEYIN2 ON must be used this pin must be connected This pin is connected with the ON button of the mother board Name PIN amp lO WOtype Description KEYIN2 56 Generic digital signal Power on button Pin 56 has the electrical characteristics of a generic digital signal and TM3 Data Module has a tolerant circuit against voltages greater than 3 3 Volts Here the is ON but it requires Here the KEYINT2 pin about 1 second before you can is grounded Max send and AT command voltage for this phase is 0 4V Here the TM3 is OFF This is a voltage level that is pull up internally by the TM3 even when it is off KEYIN2 can be driven with external logic up to 3 3V min 50 ms Figure 6 2 Power on KEYIN2 timings Here the KEYIN2 is DSR become active low for more than 50ms OFF Internal Voltage ramp up Connector pin initialization Figure 6 3 Power on phases 6 2 2 SIM Interface TM3 Data Module can handle a SIM Card the module can be used with an on board SIM connector or an external SIM connector High speed SIM ME interface is implemented as well as the automatic detection of the required SIM supporting voltage Both 1 8V and 3V SIM type are supported 1 8 3V ME activation and deactivation wi
34. e 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 serial port summary of a CSD outgoing data call e DTE sets the type of data requested to the DCE through specific AT commands like AT RLP see 11 DTE sends ATD lt remote 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 characters to the DTE DTE remote DTE communication raw character based can continue indefinitely character stream can be a PPP packet stream i e IP network traffic is possible from 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 make
35. ent tasks are to be distinguished System sleep mode handling PSV driver Dynamic power management POW driver With System Sleep Mode Handling is possible to control sleep awake transitions of the system or parts of the system and implements the power optimized idle loop of the ARM core Aim of dynamic power management is to reduce the power consumption of awake system by applying only minimum clocks to the busses and peripherals 5 6 1 System Sleep Mode Handling The Power Saving Driver PSV orders the system to enter sleep mode if Enough TDMA frames without scheduled air interface activity e System sleep is not disabled by any driver Wake up will occur after programmed sleep time elapsed or at external wake up event Events that happen during sleep phase are e DSP is ordered to enter idle mode e Parts of the system are powered down ARM CPU is brought into wait for interrupt mode e Base band chip is clocked with 32 kHz standby clock ARM idle loop enters whenever the operating system gets idle In this state the following events happens Reduces CPU frequency to 6 5 MHz 52 MHz or 104 MHz o CPU frequency setting depends on pending DMA transfers that require a minimum clock frequency on the AHB bus and arm are derived from same clock source f no DMA transfer is ongoing the SDRAM is put into self refresh and the EBU clock is switched off ARM is ordered into Wait For Interrupt State
36. eover USB interface supports also the USB OTG standard The profile that is supported is Modem profile while Mass Storage profile is optional USB D USB interface signal D pin of USB interface USB_D USB interface signal D pin of USB interface USB interface supply Supply of USB interface 6 2 5 GPIO All General Purpose I O GPIOs shall be initialized to proper direction output logic level as soon as possible supply is removed from external device relevant GPIOs should be placed at low logic level or decoupled I O type Description __12518 6 VO Generic digital signal 1251 RX ____ __ 25117 8 VO Generic digital signal 1281 TX ____ See EEUU KEYOUTO Generic digital signal pin 0 KEYOUT1 42 vo Generic digital signal Keypad oup i 11 KEYOUT2 4 Generic digital signal aa pin 2 KEYOUT3 Generic digital signal GPIO 10 Generic digital signal KEYOUTS m max Generic digital signal GPIO 19 KEYINO Generic digital signal 0 1 Generic digital signal 1 KEYIN2 Generic digital signal GPIO 02 19 60 Generic digital signal 5 ___ 6__ 66 Generic digital signal GPIO88 GPIO 92 80 VO Generic digital signal GPIO92 ____ In the case that 60 pin board to board connector is mounted the number of available GPIOs interfaces is 13 In the case that USB port is not supported then the numbe
37. ervice Indicator Dual Tone Multi Frequency DTMF Subscription Identity Management Service Provider Indication Abbreviated Dialing Power on external input 5 2 Baseband base band system provides necessary interfaces for hardware software designing and debugging Data module includes the following interfaces SIM card supporting 1 8 and card type e Board to board connector the data module with serial data I O with handshake signals Via Board to Board connector there are the following interfaces 2 UART ASCO with hardware handshake signals and ASC1 without flow control Both of them are accessible on board to board connector and supports high speed dataflow Only UART 0 support HW flow control ASIM card holder through the board to board connector it s possible to handle an external SIM card holder and optionally an on board SIM holder cards type supported by the data module are 1 8 V and 3 V e USB interface V 2 0 its provided via Board to Board connector 5 3 Voiceband To realize a phone call with TM3 Data Module the following devices can be used e Handset e Headset Moreover there 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 Board to Board connector and Mother Board 5 3 1 Audio Power Amplifier The audio power amplifier can be used as a
38. es 9 5 2 51 51 16 11 0 10 5 3 10161611 100101000200101201010117 00200011060000160107 10 9 3 1 Audio Power Amplifier 10 5 3 2 Handset ADER re 10 5 3 3 Headset Mode NENNT EE aR 10 5 3 4 11814 5 10 5 3 5 EXC eee egos 11 5 3 6 Ringer Mode __ 11 5 3 7 11 5 3 8 Gero i lt E 12 5 3 9 Echo canceller Noise Reduction 12 59 10 RR RR 12 5 4 Mechanical characteristics m 15 S ME de i i ooi 15 5 5 1 e odczionfero qi rojo RT 16 R E E 16 5 6 1 oystemleep Mode 17 ar s REEL 18 8I 01 19 6 1
39. her O S like Linux can ignore this line anyway A 2 4 GPRS 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 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 different 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 1 mode in order to identify the kind of call and reject data incoming calls if GPRS is in the on line command mode the MUX functionalities cannot be used in cooperation with the GPRS on line command mode An important note a
40. ital signal Data Carrier Detect DTR 22 Generic digital signal Data Terminal Ready CTS 0 24 Generic digital signal RTS DCE 0 0 26 Generic digital signal CTS DCE Asynchronous 28 Generic digital signal RX DCE Serial Interface 0 TXD 0 30 O Generic digital signal TX DCE 32 O Generic digital signal Ring indicator _ DSR 34 O Generic digital signal Data Set Ready Exo 36 1 Aarons Serial Interface 1 For more details on serial port refer to chapter A 2 6 2 3 1 Mux has integrated the MUX functionality supported by 3GPP TS 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 3GPP TS 27 010 is implemented only on ASCO serial port 6 2 4 USB interface TM3 Data Module supports USB interface that fulfills USB V 2 0 specification for full speed 12 Mbps devices Mor
41. l Personal Communications Service Packet Data Network Protocol Data Unit PPS Protocol and Parameter Selection QoS Quality of Service RAM Random Access Memory Radio Frequency Reserved for Future Use Radio Link Protocol SW TA UL USB Terminal Adapter EUNT HN UART Universal Asynchronous Receiver Transmitter Transmission USB Universal Serial Bus 3 Scope of Product is a small light weight and low power consumption module that enables digital communications services on GSM GPRS EDGE networks for machine to machine or user to user or user to machine wireless applications These GSM GPRS EDGE data modules are developed in compliance with internal and normative certification requirements In particular they are 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 Mobile Station MS conformance specification Part 1 Conformance specification Radio spectrum e EN 301 489 1 and EN 301 489 7 EMC directive 89 336 EN 60950 LVD Directive 73 23 CEE Requirements for lead free components are imposed and satisfied The product implements a quad band MS able to operate in the frequency bands GSM 850 MHz EGSM 900 MHz and DCS 1800 MHz and PCS 1900 MHz the dynamic behavior can be configured dynamically by disabling enabling a specific
42. le only default system will support 650 mAh nominal Protection circuitry must be integrated in the battery package Through a customization Hardware and Software it s possible to change the charging current in a range that goes by 400 to 1100 mA The Battery Charger functionality provides e Battery charging control o Precharge functionality a limited current to bringing up a deeply discharged battery o Constant current charging the current limitation can be activated and pre programmed by SW o Constant voltage charging current is regulated to maintain constant the battery voltage o Tickling of charging in order to maintain the full capacity of the battery o Optionally it s possible to implement the pulse charging mode e Capacity estimation during charging no charging ongoing calls etc constantly considering the different load parameters of the phone Measurements of battery voltage RF and battery temperature equipment status etc Charging of deeply discharged battery as well as charging during phone call is possible A description of pins of Board to Board Connector that are enabled to supply the Data Module and charge battery connected with TM3 is reported below ens vo Wow m pwr Gud Ses be connected th pns 14 16 18 Ground Should be connected with pins 12 16 18 From 3 5 to 4 2 V Typ 3 8 Should be connected with pins 11 15 17 Should be connected with pins
43. nal GPIO95 006 vear PWR Power sunny 2 pom 5 vear csmPowersuppy with GSM Power Suppl ur xc m VBAT GSM Power Supply Module Supply with sou oS e VCHARGE GSM Power Supply Module Charge Should aa with Asynchronous T PWR GSM Power Supply Module Charge Should p wm with Asynchronous 2 DR Serial Interface 0 Generic digital signal Data Terminal Ready SIM VCC SIM interface SIM Supply SIM power supply Asynchronous mr CTS 0 Serial Interface 0 Generic digital signal RTS DCE 25 SIM_IO I O SIM interface SIM interface signal SIM I O serial data Asynchronous RTS 0 Ey Serial Interface 0 Generic digital signal CTS DCE SIM O SIM interface SIM interface signal SIM clock signal Asynchronous 0 Generic digital signal RX DCE SIM_RST SIM interface SIM interface signal SIM reset signal Asynchronous TXD Serial Interface 0 Generic digital signal Generic digital signal signal Synchronous Serial MRSTO Interface Generic digital signal SECO Transmit SPI compatible Asynchronous RES Serial Interface Generic digital signal Generic digital signal 0 signal Ring Indicator Ring Indicator Synchronous Serial MTSRO Interface
44. ne The path switching is driven automatically as described above for the earpiece The uplink path can be muted 5 3 5 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 400mW 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 1 1 is amplified by the built in Audio amplifier and then applied to the Loudspeaker output outputs are AUON and AUOP in this case EPPA1B 2 disabled The microphone signal is the signal that comes from the input MIC_BIAS1 MIC_GND1 5 3 6 Ringer Mode The data module support 40 tones polyphonic ring tones The ringer tones are generated by built in generator and then they are amplified by amplifier before being applied to loudspeaker through the pin of Board to Board connector 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 1
45. ng access interfaces to DTE both V 32 and V 110 are provided 5 1 2 E GPRS Features TM3 implements an EDGE terminal class B The modulation coding schemes that are implemented are MCS 1 9 Incremental redundancy is supported 5 1 3 Supplementary services The following supplementary services are provided Call Hold Resume CH Call Waiting CW Multi Party MTPY Call Forwarding CF Call Divert Explicit Call Transfer ECT Call Barring CCBS Advice of Charge AoC 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 Alternate Line Services ALS Network Identify and Time Zone NITZ 5 1 4 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 TS 27 005 JGPP TS 27 007 Proprietary AT commands For more details on the commands list and their syntax refer to AT commands Manual 1 5 1 5 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 S
46. ock e Corporate lock e Operator lock SIM Toolkit R 99 is supported 6 2 3 Serial Interfaces TM3 Data Module offers to the user the possibility to use two serial ports through the mother board complaining with ITU V 24 protocol Default baud rate is 115 2 Kbps data rate maximum is 920 Kbps The serial ports differ for the following features ASCO o Complete 9 pin serial port Mux protocol 3GPP TS 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 O O D Qo ASC1 2 available lines RXD and TXD Used for debug and tracing No Hardware flow control supported Optionally can be provided RTS and CTS signal together with RXD and TXD O O O X The available signals for ASCO are Data 0 0 Request to Send 5 0 Clear to Send CTS_ 0 Data Terminal Ready DTR Data Set Ready DSR The design of the data module is done to use the data module as DCE while the application will be a DTE Hence with the signal RXD 0 and RXD 1 the data module will receive the data send by the DTE while with TXD and TXD 1 the data module will transmit the data to the DTE In the table reported below are described the pins of the board to board connector of the serial ports Description seriat intertaco DCD 20 Generic dig
47. 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 A 2 3 3Context 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 C puts the circuit 108 2 DTR from ON to OFF 2 from 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 1 The smart way 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 Ot
48. orts module Application IP relaying 4 5 protocol PPP stack e UART 1 Radio layer v serial line BSS GPRS network Application 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 A 2 3 2Context 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 PPP Before activating the protocol data plane a dial up application has to provide the ATD 99 context number 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 comm
49. r of GPIO interface will be 33 In this case pins usually dedicated to USB port are used as GPIO interfaces 6 2 6 ADC interface Measurement interface 2 inputs for Analog to Digital Converter are supported The resolution of these converters is of 12 bit with a range of 0 2 5 Volts ADC2 converter 0 2 Volts for ADC1 converter ADC1 67 ADC 12 bits 0 2 Volts Analog to Digital Converter 2 69 ADC 12 bits 0 2 5 Volts Analog to Digital Converter 6 2 7 SPI The SPI bus includes a clock signal and two signals for the transmissions of the master and the slave 3 Generic digital signal Master Receive Slave Transmit MTSRO 3 Generic digital signal Master Transmit Slave Receive 1 3 SCLKO 35 I O Generic digital signa Shift Clock SPI interface are available to the user only if M2M Software Package is integrated on the data module 6 2 8 12 bus interface The 12 bus interface includes a serial clock and a serial data line Name PIN VOtype Description 50 37 0 Generic digital signal Serial Clock Line Generic digital signal Serial Data Line I2C bus interface are available to the user only if M2M Software Package is integrated on the data module 6 2 9 Electrical Characteristics of Board to Board connector pins 6 2 9 1 Absolute maximum ratings for input supply power voltages voe Name Mm Module Charge 12
50. ristics are listed in the following The product implements a quad band MS able to operate in the frequency bands GSM 850 MHz EGSM 900 MHz DCS 1800 MHz and PCS 1900 MHz the dynamic behavior can be configured dynamically by disabling enabling a specific band The supported power classes for both voice and data services are e Class 4 for GSM band e Class 1 for DCS bands e Class ES2 27 dBm for 8 PSK modulation EDGE for GSM EGSM bands e Class ES2 26 dBm for 8 PSK modulation EDGE for DCS PCS bands The product implements a Class B Mobile Station this means the data module can be attached to both EGPRS and GSM services using one service at a time Network operation modes to 111 are supported with user definable preferred service between GSM and EGPRS Optionally paging messages for GSM calls can be monitored during EGPRS 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 5 Supported EGPRS multislot 12 is implemented implying a maximum of 4 slots in DL reception and 4 slots in UL transmission and 5 slots on the whole Finally TM3 GSM GPRS EDGE module supports All coding schemes from CS1 to CS4 e Encryption algorithms 5 1 and 5 3 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 Amo
51. s 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 behaviour 2 the network or remote DCE the DCE takes the next actions in sequence o puts serial line DCD to OFF sends NO CARRIER string to the DTE 2 5 2 Incoming data calls The data module can accept an incoming call through the ATA command 3 please note commands like the 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 1s lt gt RI ON RI time OFF 0 5 10 15 5 The module sends RING string to serial port at constant time intervals not correlated with the RI ON action The DTE attached to 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 CONNEC T lt 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 The data plane be escaped with sequence in order to put DCE in AT on line comm
52. th 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 Finally external SIM ESD protection is required The description of pins of the Board to Board connector related to SIM interface is reported in the following _ Pme vo Description _ 27 O SIM interface signal SIM Clock Signal SIVRST 29 O SIM interface signal SIM Reset Signal _ 6 2 2 1 SIM Functionality Among SIM functionalities the following services of the SIM are supported Abbreviated Dialing Numbers ADN e Fixed Dialing Numbers FDN Last Dialed Numbers LDN e 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 group s belonging to the inserted SIM The SIM Lock feature supported by TM3 GSM GPRS EDGE module enables ME personalization through the following personalization categories e Network lock e Network subset lock e Service provider l
53. 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 5 3 2 Handset Mode A handset is supported for normal handset operation on the default audio path The normal voiceband functional mode of the data module is completely handled by baseband chipset e Microphone bias current is provided by internal regulator e Microphone signal is directly connected to input MIC BIAS1 MIC GND1 e Earpiece is directly connected to Board to Board connector with EPPA1B EPPA2A 5 3 3 Headset Mode One earpiece headset is supported and may be used for voice during calls In headset mode the microphone signal comes from the head set device and is connected to MIC BIAS2 MIC GND2 inputs Voice output from Board to Board connector with EPPA1B and EPPA2A and then to the external audio device The audio path switching from handset to headset is automatic when a rising edge is detected from line CAP22 Pin 70 of Board to Board connector see Pinout description section the audio path returning to the headset when line CAP22 Pin 70 return to 0 level 5 3 4 Microphone The uplink path can be switched between the handset and the headset micropho
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