Overview 
"WS330N is a 4G industrial Internet board designed for industrial control equipment, with a TTL serial port; 2.4GHz WiFi, wireless rate up to 300Mbps; access to 4G network; design 2 100 megabit network ports, WAN / LAN function adaptive; mature hardware and software watchdog mechanism, real-time monitoring of network connection status.
The device has multiple network access methods, supporting 4G Internet access, APN dedicated card, IoT card, PPPoE dial-up, DHCP wired dynamic allocation, static IP wired connection, WiFi wireless relay access, suitable for more application scenarios.
TTL serial port supports transparent transmission, MQTT pass-through, TCP protocol, rich application functions.
Convenient web management backend, easy to set up even for cell phones and tablets. Rich application functions, small size, suitable for more engineering application scenarios.

Key Features 
"• With a TTL serial port, support serial acquisition
One key to restore factory settings" 
• With two RJ45 Ethernet interfaces, 2.4GHz WiFi 300Mbps wireless rate 
• Linux kernel, professional driver, years of industry experience, stable serial data transmission 
• Support 4G Internet access, APN dedicated card, IOT card, PPPoE dial-up, wired DHCP dynamic allocation, wired static IP connection, wireless WiFi relay multiple network access 
• Web-based management background, no need to download any software, connect WiFi and plug in the network cable to open the browser can be easily set 
• Support serial port pass-through, WiFi wireless pass-through, MQTT transmission, TCP protocol 
"• Support protocol customization, can assist customers to access the platform
• One-to-one customer service, customized field solutions for customers based on existing equipment, fast sample testing