InDTU300 Series of rugged industrial quad-band GSM/GPRS 850/900/1800/1900 MHz digital terminal units (DTU) are designed to transmit serial data over GSM/ GPRS mobile networks.
The modems are light-weighted, compact-designed modems combined with rich features of high performance, high security, and low power consumption. InDTU300 is based on industrial design: -25 to 70°C working temperature, 5V to 35V power input and EMC level 4. It supports handheld configuration tool, InHand Device Manager to reduce maintenance cost; IEC 101 to 104, MODBOS RTU to TCP; Transparent TCP.
InDTU300 is well proven product approved by high-end customers including Siemens, Schneider Electric, China State Grid and etc. And it is compliant with smart grid industrial DL/T 721-2000 Standard of tele-control in Power Grid automation system.