GT2GM-M Wireless Module User Manual Status： [ ]Draft [ ]Release [√]Revise © Mont age Asia 2011 File Indicator： Current Version： EL_GT2GM-M Hardware Design Guide 1.
Version History Version Author Attendee Date V1.0 2012-03-20 V1.1 2012-04-18 V1.
Revision History..........................................................................................................................2 Contents ………………………………………………………………………………………...3 Version History ................................................................................................................................. 2 1 Introduction ............................................................................................................................... 4 1.1 Overview ...................
1 Introduction 1.1 Overview The GT2GM-M module is a tiny, standards-based, wireless data modem that provides GPRS wireless data connectivity, it suitable for embedding environment in some wireless products, such as wireless modem、handheld computers、GPS Tracker 、other machine-to-machine devices and vertical applications. In addition, The GT2GM-M module allows you access to the Internet easier and convenient. 1.2 Electrical features Input supply voltage: • VBAT—Min 3.3 V, Max 4.
GPIO general purpose input or output port 2 Feature Item Temperature range Weight (in g) Physical dimension Connector Type Power supply Power consumption SIM card GPIOs UART Power on key pin System Voltage (GPIO Voltage) Input/Output Impedance (ANT impedance) TCP/IP,UDP © Mont age Asia 2011 Description Normal range: -20°C to +70°C (full compliant) Storage: -40°C to 85°C 6g (typical) 29.5 x 26.0 x 2.4 mm 36 Pin stamp External input : 3.3V to 4.2V Off mode: 0 A (typical) Sleep mode: 0.8mA Standby mode: 2.
3 Block Diagram Figure 1 GT2GM-M Block Diagram 4 ELECTRICAL SPECIFICATION 4.1 Supply Voltage Symbol VBAT Parameter Min PMIC, PA Typ 3.3 3.8 2%, 0~100kHz (Max. valuesnot Voltage exceeding operating voltage) Ripple Input current VBAT Max Unit 4.2 V 1.2 A 4.2 Recommended Operation Conditions 4.2.
4.2.2 Digital signal DC electrical specifications S ymbol Supply voltage Low level voltage input High level voltage input Parameter Min Typ Max Unit VCC Regulated 2.7 2.8 2.9 V VIL —0.3 0 0.35*VCC V VIH 0.65*VCC 2.8 VCC+0.3 V V 4.3 Power Consumption The power consumption is typical value measured at 25 C temperature. Opernation Min Typ Max Unit 3.4 500 3.6 4.
4.4 Radio Performance Over full range of values specified in the “Recommended Operation Condition” Features Description Frequency Band Max. TX power GPR S : Dual band, 850/1900 Class 4 (+33dBm ±2dB) for E G PR S 850 Class 1 (+30dBm ±2dB) for PC S /G PR S 1900 4.5. Output power TRP(dBm) Band Designation TX TX TX TX TX TX GSM 850 GSM 1900 Freq(MHz) 824.20 836.60 848.80 1850.20 1880.00 1909.80 Conducted FS Test TCH Power (dBm) SPEC criterion 128 190 251 512 661 810 31.5 31.5 31.5 28.
GSM 850 GSM 1900 RX 869.20 128 -107.00 RX 881.60 190 -107.00 RX 893.80 251 -107.00 RX 1930.20 512 -107.00 RX 1960.00 661 -107.00 RX 1989.80 810 -107.00 © Mont age Asia 2011 9 -99.00 CTIA 2.2.2 -101.00 CTIA 2.2.
5 PIN definition Pin name DI Pin R Numbe First Function(Note 1) Second function(Note 1) r 5,7,16, 17 32,33,3 435,36 Ground Same as left Antenna feed point Same as left Power supply Same as left 1 Battery Charging input port (DC 5V—7V) Same as left I 9 System reset pin(low level valid) Same as left I/O 8 General purpose input or output port with pull KCOL4 GND I GSM ANT I/O VBAT I 2,3,4 VCHG I System_reset GPIO3 6 up 47K PWRKEY I 10 POWER KEY(low level valid in 2 second
LED GPIO1 I 23 LED sink port Same as left I/O 24 General purpose input or output port with pull KCOL6 up 47K,or interrupt input GPIO2 I/O 25 General purpose input or output port with pull KCOL5 up 47K EINT0 I 26 Interrupt input port Same as left GPIO33 I/O 27 General purpose input or output port with pull Speaker negative down 47K GPIO44 I/O 28 General purpose input or output port with pull Speaker positive down 47K LED_GPS I 29 LED sink port (For GPS signal indication) Same
M5206 Module Figure2 GT2GM-M module placement The antenna pad in your PCB should be 3~5mm wide and there must not be any other traces and ground under the pad. If needed, the matching network can be added between the antenna pad and antenna port. The recommended circuit is shown as below: Figure 3 GT2GM-M Antenna match 6.2 VBAT Pin (Pin 2~4) The Power amplifier is supplied by the VBAT pin. During transmitting mode, high output power will draw a large amount of current.
The UART2 used as transmitting DATA between the module from user, only supply 2 signals as follow table: Pin name DIR Pin Number Function unit TXD2 O 21 UART 2 data transmitting port RXD2 I 22 UART 2 data receiving port This module also support baud rate from 9600 to 921600 6.5 GPIOs The GT2GM-M module has 8 GPIOs (PIN8,PIN18,PIN24,PIN25,PIN27, PIN28, PIN30,PIN30): Please refer to corresponding programming application for details as to all the GPIO ports. 6.
VDR/TVS 2 C401 NC . . 1 SIMDATA 3 1 SIMCLK 2 1 SIMVCC RESET Vpp SIM_Vcc GND 5 4 VDR/TVS 2 2 6 7 8 910 GND GND GND GND . . 1 SIMRST NC SIM_data VDR/TVS 2 . . NC Clock SIM Socket 1 1uF Figure4 SIM card interface reference circuit 6.8 Power on The pin 10(powerkey) is for power on the module, please keep 2 seconds low level and then turn to high level to power on the module.
7 Mechanical Structure(mm) © Mont age Asia 2011 15
BOTTOM VIEW 8 Important announcement The device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not case harmful interference ;changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
connected. Consult the dealer or an experienced radio/TV technician for help. Please notice that if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains FCC ID:N69-715000” any similar wording that expresses the same meaning may be used.
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2) Start t o t est Send t he AT command t o t he module by the soft w are t ool, and t hen t he user can cont rol t he module by PC © Mont age Asia 2011 19
3) End t he t est program The user can st op t he test program by AT command “ ATH” 10.Installation information The Tracker uses a simple cabling arrangement and supports splicing into an OBDII exten-sion for power. Connection to the vehicle is made through a 3mm pitch rectangular header con-nection common to the automotive market. As any GPS location device, the Module should be installed in a vehicle, so that it has an unob-structed view of the sky during normal operation.
