W3100G IP Modem is a kind of wrieless 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) : -20° C to + 70° C