EM111A - GSM/GPRS/EDGE Terminal Two Serial ports

Salient Features

  • Intelligent GSM/GPRS/EDGE Quad Band Terminal
  • 1 x RS232 port
  • 1 x RSRS485 port
  • Digital I/Os
  • Analog I/Ps
  • 1.8MB RAM and 10MB Flash Memory
  • Embedded multithreaded firmware for data acquisition,processing and communication
  • Optional enhanced AT Command mode
  • Over The Air (OTA) firmware updation
  • Customizable standard or proprietary protocols
  • AES encryption

General Specifications

  • Quad-Band GSM 850/900/1800/1900 MHz
  • GPRS multi-slot class 10
  • GPRS class 10: max. 85.6 kbps (DL & UL)
  • Mobile station class B
  • CSD Data transmission up to 14.4 kbps
  • ARMę Core, DSP
  • Memory 1.8MB (RAM) and 10 MB (Flash)
  • Improved power-saving modes
  • Over The Air (OTA) updation of software
  • Real Time Clock
  • SMA antenna connector
  • 1 x RS232C serial interface
  • 1 x RS 485 serial interface
  • 6 x Digital Input (optional)
  • 2 x Digital Output (optional)
  • 2 x Analog I/Ps (optional)
  • 1 x USB 2.0 full speed
  • SIM card interface 3V, 1.8V
  • Input Voltage 9-30V DC

Embedded Firmware Features

This device can have standard or customized embedded firmware as per user requirements. The embedded firmware of this device can be changed or updated Over The Air via GPRS/EDGE. Hence, visits to the sites to upload new embedded firmware can be avoided.

The embedded firmware can include following features.

  • Data capture
    • Periodical or event based data collection from connected device(s)
    • Logs captured data and send it to the external world using GPRS or SMS
    • Supports communication protocols like Socket, HTTP, FTP or Email
    • Processes captured data and generate events and send alerts to specified mobile numbers or to the server
    • Generate alert message on communication failure with connected device(s)
  • Desktop configuration
    • Desktop configuration software for configuring the terminal
    • Remote Configuration
    • Configure all important parameters via SMS
    • Complete authorization for configuration commands
    • Confirmation for configuration commands
    • Auto restart of the terminal after remote configuration, if required


  • Remote Data Acquisition using SMS/ HTTP/FTP or Socket
  • Data Logging, Processing and Communication
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