Technical FAQ

This manual introduces the method to upgrade USR-G781(Industrial 4G LTE Modem) firmware by USB cable.
This manual introduces the method to upgrade USR-C21x( WiFi Modules) series products firmware and Web Server in network way.
This manual introduces the method to upgrade USR-BLE100/101(Bluetooth Serial Module) firmware by serial port.
This manual is to introduce configuration when doing the instrument test. 1.AT commands to change to instrument test 2.Related AT commands instructions.
This manual introduces the method to upgrade WiFi Module-USR-C322 Web Server.
This manual introduces the method to upgrade WiFi Module -USR-C322 firmware.
Transparent transmission and security of industrial 4G routers.
Industrial router is to provide user with wireless data transmission function using public wireless network.
What is serial Ethernet module? Serial Ethernet module is a device to realize transparent transmission between TCP/UDP data package and UART interface.
1. Serial Device Servers Self-Test Buy serial device servers, the first thing is to do some basic tests to identify the serial device servers functionality are good or bad. Test serial device server is good or bad way: the 2,3 shorted wire, and then use the serial debugging assistant, manually send one (or more) bytes