1. The security of wireless access
Data exchange using 4G routers uses a secure tunnel established between the wireless router and the communication server. All data exchanges can only be end-to-end (server), and any other intermediate-to-end data cannot be effectively carried out. Communication, which means that the wireless network provider cannot enter any system at both ends of the communication.

Using 4G DTU data exchange uses the internal data exchange process of the wireless network provider, so that the wireless network provider can easily enter any system at both ends of the communication.

2. Anti-interference of terminal equipment
The core system of the 4G router adopts an embedded operating system, which only provides a few data ports that can be used. There is only one routing relationship with the terminal device, so the terminal device cannot reach other terminal devices, and cannot access other devices of the same type. A terminal device, even if one terminal device is controlled by a virus or an outsider, it only affects this terminal device, and the others are not affected.

There is a certain relationship between 4G DTU terminal equipment and 4G DTU, which can easily access other terminal equipment. If a terminal equipment is controlled by a virus or by outsiders, all terminal equipment and the central server system will be seriously threatened.

3. equipment status monitoring
4G routers can monitor their status while they are working. The log information can basically know where the problem is and the corresponding solutions.

When using 4G DTU, it is not possible to perform status monitoring, so when there is a problem, it is more troublesome or very troublesome to check.