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 www.rhydolabz.com 

SIM900 GSM/GPRS RS232 Modem - User Manual

 

 

 

We bring the world to you……..

 

Page 1

 

 

Document  : 

Datasheet 

Model #   :  

GSM – 1934

 

Date                               : 

10-DEC-2011

 

 
 
 
 
 
 
 
 
 

    

    

    

    

    

    SIM 900 

SIM 900 

SIM 900 

SIM 900 –

–

–

–RS232

RS232

RS232

RS232    

   

   

   

   GGGGSSSSM/G

M/G

M/G

M/GPPPPRS

RS

RS

RS    M

M

M

Mooooddddeeeem

m

m

m     

 

User Manual

 

 

 
 
 
 

 
 
 
 
 
 
 
 
Rhydo Technologies (P) Ltd. 

(An ISO 9001:2008 Certified R&D Company)

 

Golden Plaza, Chitoor Road, 
Cochin – 682018, Kerala State, India 

Phone 

: 0091- 484-2370444, 2371666 

Cell 

: 0091- 99466 70444 

 

 

 

 

 

Fax 

: 0091 - 484-2370579 

E-mail 

: 

[email protected]

, 

[email protected]

 

WebSite 

: http://www.rhydolabz.com 

 
                                                                                                                                                     

Содержание GSM-1934

Страница 1: ...RS232 RS232 G G G GS S S SM G M G M G M GP P P PRS RS RS RSM M M Mo o o od d d de e e em m m m User Manual Rhydo Technologies P Ltd An ISO 9001 2008 Certified R D Company Golden Plaza Chitoor Road Co...

Страница 2: ...nds FEATURES High Quality Product Not hobby grade Quad Band GSM GPRS 850 900 1800 1900 MHz Built in RS232 Level Converter MAX3232 Configurable baud rate SMA connector with GSM L Type Antenna Built in...

Страница 3: ...e Tricodec o Half rate HR o Full rate FR o Enhanced Full rate EFR Hands free operation Echo suppression AMR o Half rate HR o Full rate FR Interfaces Analog audio interface pins at 2mm Pitch RMC RS232...

Страница 4: ...z com SIM900 GSM GPRS RS232 Modem User Manual We bring the world to you Page 4 DIMENSIONS OPERATING CONDITIONS Parameter IN OUT Minimum Maximum Unit Supply Voltage VIN Input 4 2 13 V Current Consumpti...

Страница 5: ...BY Modem is ready for GPRS data transfer but no data is currently sent or received In this case power consumption depends on network settings and GPRS configuration GPRS DATA There is GPRS data transf...

Страница 6: ...e signal can be used to lead system to be in SLEEP mode or slow clocking mode 1 6 Minimum Functionality Mode Minimum functionality mode reduces the functionality of the GSM Modem to a minimum and thus...

Страница 7: ...ep mode the default value is 0 that can t make the GSM Modem enter sleep mode For more details please refer to our AT command list 1 8 Wake Up GSM MODEM from SLEEP Mode When GSM MODEM is in SLEEP mode...

Страница 8: ...E RXD Receive data from the TXD signal line of the DTE serial port of the GSM engine supports auto bauding for the following baud rates 1200 2400 4800 9600 19200 38400 and 57600bps Factory setting is...

Страница 9: ...o 3 seconds before sending AT character After receiving the OK response DTE and DCE are correctly synchronized The AT or at prefix must be set at the beginning of each Command To terminate a Command l...

Страница 10: ...SSAGE Goal Send a text AT CMGF 1 r Returns OK or ERROR AT CSCS GSM r Returns OK or ERROR AT CSCA 13123149810 r Returns OK or ERROR This number 13123149810 is the short message center for AT T Cingular...

Страница 11: ...or debugging and upgrading firmware It cannot be used for CSD call FAX call And the Debug port can not use multiplexing function It does not support autobauding function Debug port supports the commun...

Страница 12: ...sed for microphone The electret microphone is recommended when the interface is used for microphone The outputs connect to the receiver Thereceiver outputs only can directly drive 32 External line inp...

Страница 13: ...rding to your requirement INTERFACING THE GSM MODEM Interfacing the Modem to microcontroller Basic connection Fig 3 GSM Modem Interfacing with Microcontroller The Modem can be directly interface with...

Страница 14: ...www rhydolabz com SIM900 GSM GPRS RS232 Modem User Manual We bring the world to you Page 14 Interfacing the Modem to ARDUINO...

Страница 15: ...or Network and becomes slow blinking once the Modem registers with the Network 6 Network LED The Network LED indicates the various status of GSM module eg Power on Network registration GPRS connectivi...

Страница 16: ...Modem to a PC COM Port 2 Create a HyperTerminal Windows tool for serial port communications window with Baudrate 9600 and connect it to the COM Port to which GSM is connected 3 Type any AT command in...

Страница 17: ...SerialPortInit Serial Communication 9600 N 8 1 Send2Gsm AT r n Transmit AT to the module GSM Modem sends OK DelayS 2 2 sec delay Send2Gsm ATE0 r n Echo Off DelayS 2 2 sec delay Send2Gsm AT CMGF 1 r n...

Страница 18: ...Programs Rhydolabz GSM Modem Connect the GSM Modem to a PC Com port using a MAX 232 circuit or TTL RS 232 TTL USB and Power it Up Select the Comport in the application software to which GSM modem is...

Страница 19: ...anding that any outcome whatsoever is at the users own risk All products are tested for their best performance before shipping still rhydoLABZ is offering One year Free service warranty Components cos...

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