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The purpose of this document is to provide G24-L customers with a general overview of the electrical and programming interface differences between G30 and G24-L, and provide a means to integrate the G30 product on a G24-L compatible platform.This document may be used as a reference which outlines the electrical, software and mechanical integration required for transforming a G24-L platform to operate with G30.
Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur. Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction. Tip or Information – Provides advice and suggestions that may be useful when integrating the module. All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
The G30 GSM/GPRS module is available on a LGA 81-pin form factor, and with a 70 pin connector as well, maintaining the same mounting design as the ‘24’ family. This model version is created for customers looking to draw on the G30 feature set, and wish to remain with connectorized solution. The following list of features will be available on G30 modules once migrated from G24-L: AT commands Interface and TCP/IP stacks compatible with the G24 family.
Telit G30 module was designed with regards to electrical, mechanical and software compatibility to G24-L module. The following is delta within electrical interfaces and features that has to be considered when using G30. Not supported features in G30: EDGE USB ADC3 IGN New supported features in G30: VRTC Esim- Embedded SIM Unit ready indication using reset signal FOTA ATs Appzone application: I2C, SPI Telit G30 current consumption values are different than G24-L.
Telit G30 has an internal optional SIM chip and external interface to SIM connector same as G24-L.
Differences in the audio output and input gain settings between G24-L and G30 may be noticed. Different gain levels for each path need to be set through AT commands, depending on the application. G30 digital audio: PCM bus clock frequency 144 kHz I2S bus CLK - 512 kHz It is important to note that the ON_N signal voltage level is different between the modules. In G24-L the ON_N signal is referenced to logic level.
Turning OFF Using ON_N: G24-L: Asserting the ON_N signal low for a minimum of 2 seconds. G30: Asserting the ON_N signal low for a minimum of 3 seconds. Telit G30 can support current of up to 30mA, when in G24-L the current is 150mA.
The following table describes the differences between the G24-L and G30 interface connector signals. Signals marked in color red have changed between G30 and G24-L.
Connector Pin # 34 35 36 37 38 39 40 41 42 43 44 45 46 47 G30 G24-L GPIO4/SCL GPIO4 GPIO5 ADC1 GPIO6 GPIO5 ADC1 GPIO6 GPIO7 ANT_DET GPIO8 ADC2 SIM_RST_N GPIO7 ANT_DET GPIO8 ADC2 SIM_RST_N UID SIM_CLK ADC3 SIM_CLK 48 VSIM SIM_VCC 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 GPRS SIM_PD_N GPRS SIMPD_N IGN SIM_DIO ON_N LCD_CS HDST_INT_N LCD_SD HDST_MIC LCD_CLK AGND LCD_RS MIC SPI_IRQ_N ALRT_N SPI_DIN ALRT_P SPI_CLK SPKR_N SPI_DOUT SPKR_P SPI_CS SIM_DIO PWR_ON _N HDST_SPK HD
The mechanical design is similar between G24-L and G30. The differences in the modules are in connectors and height, as described below. G24-L uses MMCX, while G30 uses U.FL connector for the radio RF interface. The application interface connector is a single 70-pin, 0.5mm pitch, 2 rows, board-to-board interconnect type. G24-L Dimensions (70 Pin connector) Physical: 24.4x45.2x.6.5mm Weight <9g G30 Dimensions (70 Pin connector) Physical: 24.4x40x.3.
The following table is providing a full overview on software features differences between G24-L and G30 modules.
AT Commands – Removed EGPRS +MEGA STK +MFIC +CTFR1 +MNTFY +MCHARGE +MEGA +MDMIC +CVIB +MPDPM +TCLCC +MKPD +TSMSRET +TWUS +TWUR +TASW +TADIAG +MVREF +MNTFY +MPSU +CKPD +CKEV +CDEV +MUPB +CSNS +MDSI +MCSN +MCSAT +MEDT +MEMISP +MEMAS +MEMGS +MEMDE +MEMSE +MEML +MEMR +MEMD EGPRS commands removed (CGEQREQ,CGEQMIN,CGEQNEG,CEG) Email Gateway Address Removed Motorola commands replaced by IFX commands.
+MEMW +MFS +MTDTR +MTCTS +MMAR +EMPC +MIPCSC,MIPSSL +MIPCFF +EPIN +MGEER +MHDPB +MIAU Ignore commands FTS, FRH, FRM, FRS, FTH, FTM, FPR Phone Book Feature Fax Feature AT$ Removed Frequency of Search – Not supported DTR line – Not supported CTS line – Not supported Removed Subsidy Lock – Not supported SSL - Not supported Removed Removed GPRS Error – Not supported Headset dual position – Not supported Removed Backward compatibility, Removed Class 1 commands, Removed Removed Removed List of all available comm
AT Commands – Updated +MMICG ATI[n] +CRTT Character Set Baud rate FAX +CPBS Range supported is 0-15 Updated 16 Ring Tones instead of 41 Replace ASCII with IRA. UTF8 Removed Value 13 (460800), Removed Class 2 1) AD, DC, EN, MC and RC – Removed 2) LD – Added 3) Replace SD with SN +CPBS / +CPMS ME/MT removed +CSMS +CIND/+CIEV +CCWA GPIOs S94, S96 FTP Value 128, removed. Different indications Indication will appear only once.
S register +MAPATH/ +MAVOL S6, S8 and S18, assed The parameters: , , , removed 1) Only 2 converters 2) Average not supported Alert speaker, removed Dial from PB Only full equally string can be dial +MIPCONF +MMAD +MIPSEND Audio +CLVL / +MAVOL +CCWA +CGPRS D, Dial +ICF +CSMS +CNMA+CNMI +CSCA +IPR +CGCLASS +CSCS +CSCS +MIPSEND +CFUN +CFUN S94 +CPWD S24 +CGDCONT +MCELL +CMER +CRSL when reached the watermark an unsolicited report of +MIPPUSH will
SMS +CBAND +CTZU, +CTZR +MTSM +MADCM +CCID +CSIM +CGCMOD \Q +MATONE +MMICV When reading an incoming SM, the message header will be passed as usual.
