Main features：
>Support mobile EC20 / ec200t-lte module 2g 3g 4G dial-up Internet access；
>Support dual network port 1wan + 1lan or 2lan mode, can be selected through the page, support WAN port connection to the external network;
>Support WiFi sta mode, can choose to use STA to connect the superior route to connect to the external network;
>The system supports serial data transparent transmission mode by default, and supports server type TCP / mqtt board side as client side;
>Support RS232 / RS485 working mode, optional;
>Support RS485 working mode to select transmission direction automatically;
>It supports wide power input dc9-36v, and ultra-low energy consumption is only 2W;
>Board level built-in multi-level anti surge protection circuit, isolation circuit;
>Industrial grade stable SIM card holder;
>The system supports RS232 / RS485 data transparent transmission mode by default, and supports server type TCP / mqtt, and the board side is client side;
>It can provide IO pin using block diagram, users can program and write RS232 / RS485 data, and develop transmission protocol or firmware by themselves;

BOJINGnet工业级4G TLE DTU RS232/RS485 TO LTE的其他特性有：

>移远EC20 /EC200T-LTE模块2G 3G 4G拨号上网 三网通移动/联通/电信；

>双网口1WAN+1LAN或2LAN模式可以通过页面选择，支持WAN口连接外网；

> WiFi STA模式，可以选择用STA连接上级路由连接外网；

>WiFi热点模式 2.4G b/g/n 150Mbps速率，可一键开关WiFi热点适合各种应用场合

> RS232/RS485工作模式可选择；

> RS485工作模式自动选择传输方向；

>宽电源输入DC9-36V，超低能耗仅2W；

>板级内置多级抗浪涌保护电路，隔离电路；

>工业级专用稳固SIM卡卡托；

>系统默认支持RS232/RS485数据透传模式，支持服务器类型TCP/MQTT板端为Client端；

>用户可自行编程读写RS232/RS485数据，自行开发传输协议；

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