GSM/GPRS BOARD (IOT SYSTEM)

GSM/GPRS BOARD (IOT SYSTEM)

GSM/GPRS BOARD (IOT SYSTEM)

GSM/GPRS BOARD (IOT SYSTEM)

GSM/GPRS BOARD (IOT SYSTEM)

Specifications: Description
Frequencyband GSM850/EGSM900/DCS1800/PCS1900quad-band
Sensitivity < -108 dBm
Transmitpower
  • GSM850/EGSM900Class4(2W)
  • DCS1800/PCS1900Class1(1W)
Protocol Protocol
AT
  • GSM07.07
  • ExtendedATcommands
Voice Supportbelowspeechcoding:
  • HR (halfrate)
  • FR (fullrate)
  • EFR (EnhancedFullRateSpeedEncoding)
  • AMR (Adaptive Multi-Rate)Supportecho suppression Supportrecord andDTM detectionfunction
SMS
  • PDU/TEXT
  • Send/receive/newmessagealerts
  • SMSmanagement:read/delete/storagelocationandmode/messagelist
GPRS
  • SupportGPRSCLASS12
  • Thetheoreticalmaximumuplinktransmissionrate:85.6Kbit/s
  • Thetheoreticalmaximumdownlinktransmissionrate:85.6Kbit/s
  • EmbeddedTCP/IPprotocol,supportmultiplelinks
  • Supportserverand clientmode
UART ATcommandissuing,datatransmissionandsoftwaredownload Baudrate from1200bit/s to 115200bit/s
RTC
  • Real-timeclock,timeupdate
  • Timingswitchon/off
UART ATcommandissuing,datatransmissionandsoftwaredownload Baudrate from1200bit/s to 115200bit/s
CPU ARM7-EJ@270MHz
Antenna 50Ωcharacteristicimpedance
Operating Temperature -40°C to+85°C
Operatingvoltage 3.5Vto 4.3V(3.9Visrecommended)
Peakcurrent Max 2.0A
Idle modecurrent 11mA
Sleepmode current
  • < 2.5mA (onlivenetworks)
  • < 1.1mA (oninstrument, DRX=9)