产品介绍：
嵌入式 GPRS 可编程控制器，带 GPS 功能
Embedded MiniOS7, anti-virus
Supports a variety of TCP/IP features, including TCP, UDP, IP, ICMP, ARP
10/100Base-TX Ethernet Controller
COM port: COM1 (5-wire RS-232), COM2 (RS-485), COM3 (3-wire RS-232)
Built-in self-tuner ASIC controller on RS-485 port
I/O: 3 channel DI, 3 channel DO, 8 channel AI
Support SD storage card (More detail)
GPRS/GSM: Quad-bａnd 850/900/1800/1900 MHz(option)
Support TCP server, TCP client, UDP client connection from GPRS
GPS : 32 channels with All-In-View tracking (option)
128*64 dots LCM display (only for G-4500D-2G and G-4500PD-2G)
Support Virtual COM technology
Support Modbus Protocol
High reliability in harsh environment
Free easy-to-use software development toolkits
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