This is a very versatile intelligent GPRS modem with two RS-485 ports and one Ethernet port. It operates on 24VDC supply. It has ARM Cortex-M3 high speed processor for processing various tasks along with GSM/GPRS module. It has one 10/100mbps Ethernet, two RS-485 interfaces for communication with slave devices. User can connect at most 31 slave devices on each port adding up 62 slave devices. Ethernet port is used for configuring various modes and parameters using PC based utility for windows. A provision for micro SD card socket is provided for future use for local data storage in FAT file format. Software RTC (Real Time Clock) is implemented in firmware to keep track of real time for data logging application. A real time is read from the service provider on power on and maintained in firmware. This product is mainly design for interfacing MODBUS slave devices for remote data logging and control.