The DTU connection is unstable, which will cause the loss of data transmission.

In practical application, DTU connection is unstable, the main reasons are as follows:

1. In remote mountainous areas, the signal environment in remote mountainous areas is often poor, and the DTU connection is often unstable. The solution is to choose a high-gain antenna to increase the network signal receiving capacity, or to increase the serial data line and put DTU in a place with strong network signal.

2. The parameter setting of 2.DTU is incorrect: In areas with strong network coverage, parameter setting errors are the most common. Most manufacturers of DTU generally have DTU to prevent disconnection. In application, the user can set the heartbeat packet interval to be less than the detection time to avoid dropped calls.

3. The ring network signal is poor, such as urban underground parking lots and mountain libraries. The barrier is shielded and the network signal is poorly programmed. The solution is to extend the antenna until the signal is good.

DTU quality problem, there are many DTU manufacturers in the market at present, and the product resources are uneven. Poor quality DTU has natural defects in hardware and network settings. The solution is to buy high-quality products from reliable manufacturers.