Technical FAQ

Selection Table of Ethernet Module
Selection Table of GSM Module
Selection Table of Serial to WiFi Converter
Selection Table of Industrial Cellular Router
Selection Table of Serial to Ethernet Converter
Selection Table of I/O Controller
The main function of our USR-GPRS232-730 is network transparent transmission, but our cloud platform receives data by MODBUS RTU protocol.
Please refer to the documentation in this link:Transparent transmission between USR Serial to Ethernet products
The antenna is an essential part of the cellular router. There are the primary antenna and secondary antenna in the communication module. The primary antenna is the most critical signal antenna. It is not saying that the more antenna, the stronger signal is.
For more information about this, please click you can refer to it. Although the devices are different, the setting method is the same.