The InDTU 332 Series of rugged industrial quad-band GSM/GPRS 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. And they bases on professional industrial chip design capable to work robustly in harsh outdoor circumstances, for example, wide operation temperature ranging from -25? to 70?, wide range power input from 5V to 35V and strict EMC conditions. The modems can support several management tools include handheld configuration tool, Device Manager, InAdmin remote configuration tool, which significantly reduce the maintenance and installation cost for customers. InDTU 332 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.

• Wireless Network Interface
• Quad-band GSM/GPRS: 850/900/1800/1900 MHz
• Support Private Network: APN
• Authentication Method: CHAP/PAP
• SIM Card: 3V, flip SIM card, Anti-dismantlement.
• Industrial Serial Interface
• Serial ports: 2 ports (3.81mm industrial terminal pluggable blocks), Port 1: RS-232/RS-485 for data transmission and configuration; Port 2: RS-232 only for configuration
• Baud Rate: 1200bps to 115200bps
• Support industrial data protocols: IEC 101 to 104, MODBOS RTU to TCP; Transparent TCP; Virtual COM;
• Manage and Configure
• Port WAN Port 1 Port 2
• Config Method 1. TELNET, 2. Config Tool
• Config Tool Config Tool
• Batch Configuration Device Manager 3.0 (OVDP)
• Device Power Consumption: Standby: <12mA@12V Operation: <45mA@12V, Start up: <100mA@12V, Peak: <100mA@12V