How to choose a reliable DTU product？

DTU terminal function introduction How to choose a reliable DTU product

　　 DTU is a wireless data transmission terminal, which is the most basic wireless transparent transmission terminal device.　The data transfer unit DTU (Data Transfer Unit) is a wireless terminal device specially used to convert serial port data into IP data or convert IP data into serial port data for transmission through a wireless communication network.

　　 The main function of DTU is to transmit data from remote devices back to the back-end center via wired/wireless methods. To complete the data transmission, a complete data transmission system needs to be established. In this system include: DTU, customer equipment, mobile network, back-end center. At the front end, the DTU and the customer's equipment are connected through the 232 or 485 interface.

     Therefore, only DTU cannot complete the wireless transmission of data, and it needs to be used with the cooperation of background software. After the connection is established, the front-end equipment and the back-end center can carry out wireless data transmission through DTU, and it is two-way transmission. The new generation of DTU has developed to varying degrees in terms of simple data collection, multimedia display, and data processing.

　　 Steps to choose a DTU product:

　　 1. Whether the functional requirements can be completed, such as support: dynamic domain name, main backup center, wake-up, SMS channel, remote configuration, remote upgrade.

　　2. Then the network operator chooses. If you use China Mobile or China Unicom network, you can choose 2G GPRS network standard, and CDMA is the 2G network standard of China Telecom. Confirm according to the user's use environment (field signal strength).

　　3. Secondly, whether the communication interface meets your needs, it is best to choose a DTU with a terminal interface, which is convenient for access and firm. The more interfaces that can be supported, the more advantageous it is, for example: RS232, RS485, RS422, TTL, etc.

　　4. Finally, it is to determine whether the product is truly industrial-grade standard, wide temperature, wide voltage, power reverse protection, and high-voltage lightning and electrostatic protection. This is the most important point. DTU selected the right industrial grade with long service life and high stability. It is convenient to maintain and upgrade, reducing the failure rate and the cost of on-site dispatch.

　　5. There are too many DTU manufacturers now, and they also include many commercial grade products, mainly quality-oriented zoko-link communication products, which professionally solve the stability problems of ordinary "industrial DTU".

DTU application：

　　 DTU has been widely used in power, environmental protection, LED information release, logistics, hydrology, meteorology and other industries. Although the applied industries are different, the principles of application are the same. Most of the DTUs are connected to industrial equipment, such as PLCs, microcontrollers and other automation products, and then establish a wireless communication connection with the background. Today, with the increasing development of the Internet, DTU is used more and more widely. It provides help for various industries and the integration of information and industries among various industries. It has gradually developed into the core technology of IoT applications.