Product Overview:

QRM300C is a dual serial port 4G industrial router that supports WiFi serial port, wired serial port, and 4G serial port. QRM300C has an RS485 serial port and an RS232 serial port. 2.4GHz WiFi, wireless speed up to 300Mbps, equipped with high-quality WiFi suction cup antenna, more stable wireless performance; Dual 4G large suction cup antenna connection, stronger signal; Rich device indicator lights and serial port transceiver indicator lights for easy debugging and device operation inspection; Power input supports 12V-48V wide voltage input; Three 100 megabit network ports; Installation method of support rail buckle; Mature hardware and software watchdog mechanism for real-time monitoring of network connection status.

The device has multiple network access methods, supporting 4G internet access, APN dedicated card, IoT network card, PPPoE dialing, DHCP wired dynamic allocation, static IP wired connection, WiFi wireless relay access, suitable for more application scenarios.

RS485 and RS232 serial ports support transparent transmission or conversion from Modbus RTU protocol to TCP protocol, MQTT transmission, multi host and multi slave mode, rich application functions, and one-on-one technical support for device installation and debugging.

Convenient network management backend, mobile and tablet computers can also be easily set up. Rich application functions, small size, supporting guide rail installation and bracket installation, suitable for more engineering application scenarios.

Product highlights:

Equipped with one RS485 serial port and one RS232 serial port, capable of working simultaneously without mutual interference

With RTC clock

Three Ethernet ports, WAN/LAN switching selection, and network port anti-surge protection design. Supports one click factory reset

Linux kernel, professional driver, years of industry experience, stable serial data transmission

Support 4G internet access, APN dedicated card, IoT network card, PPPoE dialing, wired DHCP dynamic allocation, wired static IP connection, and wireless WiFi relay for multiple network access

Web page management backend, no need to download any software, connect WiFi to plug in the network cable and open the browser for easy settings

Support transparent transmission, MQTT platform access, and PLC remote download

Support Modbus RTU to TCP, and support Modbus master/slave communication

Support protocol customization and assist customers in accessing the platform

1-on-one customer service, customized on-site solutions for customers based on existing equipment, and rapid sample testing