W3100G IP Modem is a kind of wireless terminal device that provide data transfer function by public GPRS network. It has been widely used on M2M fields. Features: 1. Rich Data Options -TCP for reliable data transfer -UDP for fast and bulk data transfer -App protocol for secure data transfer -Methods of serial data packetization 2. Robust Operation -Constant self test -Self reset and recovery -Data buffering 3. Easy Control -Remote configuration by SMS or GPRS -Remote activation by SMS, call or Serial command -Auto SMS of IP for dynamic IP SIM card 4. Always ON Connection -Auto socket re-connection if drop -Time to live timer for network checking 5. Flexible Operation -Server or client mode for connection -Static or dynamic IP -Can work as a standard GSM/GPRS modem -Can work as virtual wire -Support RS232 / 485 / 422 hardware options -Local / Remote firmware update via GPRS -Direct control by HyperTerminal commands -Provide Center Manager software Design for Industrial Application: 1.High performance industrial cellular module; 2.Independent protocol stack; 3.Low power consumption, provide sleep mode, scheduled on line/off line mode; 4.Metal shell, provide IP30 protection; Specifications: - Frequency Band: GSM Quad-Band 900/1800MHz - Power Save Mode - Software: Center Manager - Supply voltage: 5-36V DC - Temperature (Restricted Operation): -20Cto+70C.