GSM Control Header

GSM Modems and GPRS Modems

GSM Modem/GPRS Modem

GSM Terminal-232

GsmTerminal-232 is a quad band GSM modem/GPRS Modem for the transfer of data, SMS and faxes in GSM and GPRS networks.
Built-in EIA-RS232 com port, 300 to 115200 baud.
Control by ITU, GSM, GPRS and Custom AT commands. The GsmTerminal-232 allows easy GPRS connections with embedded TCP/IP stack.
The connections are suitable for use in domestic and industrial environments.
Its performance bandwidth and the industrial housing make it easier to quickly implement new applications in areas such as telemetry, telematics and remote control. Optional GPS receiver available for L.B.S. application.
Wide range power supply voltage AC/DC sources can be integrated with opional backup battery to operate for long time even during blackouts.

 

Wiring

GSM Modem Connector

 

Features of the GSM Modem/GPRS Modem.

Output Power
 • Class 4 (2W @ 850 MHz & 900 MHz) 
• Class 1 (1W @ 1800 MHz & 1900 MHz)

Power Supply
• 8÷40 VCC polarity independent 
• 6÷28 VCA
• < 18 mA @ 12 VDC in low power mode
• < 30 mA @ 12 VDC in standby mode (GPS off) 
• < 150 mA @ 12 VDC in communication mode 
• Optional Li-Ion backup battery

Data Interface
• RS-232, Sub-D 9 pole
• 300...115200 BIT/s
• 7/8 data bit, 1/2 stop bit, 1 parity bit
• Software handshake , Hardware handshake
Voice
• Telephony, Emergency calls
• Full, Enhanced Full, Half e Adaptive Multi Rate
• Echo cancellation and noise reduction
• Full duplex handsfree
• Dual Tone Multi Frequency Function (DTMF)

GSM Data/Fax
• transparent up to 14400 bps
• non transparent up to 9600 bps
• Automatic fax group 3 (Class 1)
• V.110

GPRS Packet Data
• GPRS Class 10, Class B
• PBCCH (Packet Broadcast Control Channel) support
• Coding schemes: CS1 to CS4

SMS
• Text and PDU
• Point to point (Mobile Terminated / Mobile Originated)
• Concatenated SMSs
• Cell Broadcast

GSM Supplementary Services 
• Call Forwarding, Barring, Waiting and Hold 
• Multiparty
• Jamming detection
• USSD (Unstructured Supplementary Services Data)

Other Features 
• Real Time Clock
• Alarm management
• SIM Access Profile
• Optional Python interpreter (3Mb Flash + 1.5Mb RAM)

GPS Receiver (optional)
• SiRFstarIII 20 channels
• High sensitivity indoor reception (-159 dBm)
• Hot start < 2 seconds
• 200,000+ effective correlators

Additional Protocols 
• TCP/IP 
• UDP
• SMTP
• FTP