The difference between 4G router and 4G DTU(一)

The difference between 4G router and 4G DTU

4G industrial wireless router and 4G DTU are also used for transparent transmission of wireless network data of industrial equipment. However, there are also significant differences between the two, and the differences between the two are mainly distinguished from three aspects: appearance interface, usage method and application environment.

1. Appearance comparison between 4G router and 4G DTU

Appearance interface The appearance interface of the 4G router usually has a network port, which provides wireless networking functions for the network port device, and requires the network port device to actively access the center to complete the data transmission. Usually 4G router routers will provide a variety of network interface methods of WAN port, LAN or freely switchable WAN/LAN port. You can customize the way to complete the matching interface according to the connection method in the project.

The appearance interface of 4G DTU generally only provides serial interface networking mode. 4G DTU is mainly used for bidirectional transparent transmission between serial port data and IP data. What if some projects need to use both the network port and the serial port? In the current era of rapid technological development, 4G routers and 4G DTU functions have been integrated.

2. Comparison of 4G routers and 4G DTU usage

The 4G router can convert the Ethernet and fieldbus communication protocols. It only needs to set the IP address specified by the 4G router as the gateway in the terminal device. If the specified IP address (or specified IP address segment) is not set, the communication function cannot be realized. The main purpose of 4G DTU is to implement dial-up, not a gateway in the true sense. For example, after the 4G DTU is connected to the terminal device and completes the dialing process, the 4G DTU can be used as a new network device, and the terminal device address can use the 4G DTU binding address.

3. The difference between 4G router and 4G DTU application environment

4G routers usually have VPN/APN functions and private network encryption. In addition, industrial 4G routers with WIFI functions are suitable for outdoor WIFI wireless signal coverage projects and projects similar to bus WIFI and shopping mall WIFI sharing. However, the transmission distance of 4G DTU in the field terminal is relatively scattered, and the data communication rate is high, so the real-time performance of 4G DTU can meet most industrial fields, and it is usually used for data acquisition and monitoring systems. Such as charging pile remote monitoring system, environmental detection system, real-time monitoring of energy consumption, dam water conservancy project monitoring applications, etc. 4G router

4. Terminal equipment data access interface

The 4G router provides one network interface for data access. The terminal device only needs to use the IP address of the network port of the 4G router as the gateway. The terminal device must use the specified IP address or the address in the specified IP address segment. 4G Only the router can exchange data with the server host of the specified IP address or the server host in the IP address segment, and all other unset addresses of the 4G router cannot communicate with each other.

5. The data access of 4G DTU generally also provides serial port or network interface, but their purpose is to dial, not to be a gateway in the true sense, such as 4G DTU of serial interface in the access terminal equipment After the dialing is completed, the 4G DTU is regarded as a new network device of the terminal device, and the address of the terminal device uses the address bound to the new network device; and the 4G DTU of the network interface is similar to the telecommunications ADSL Internet access, and generally requires the device to complete A dial action.

6. The IP address used by the terminal device

The IP address used by the terminal device using the 4G router is any IP address or address in the IP address segment that can be set by itself, which is also different from the IP address assigned by the UIM card.

The IP address used by the terminal equipment using 4G DTU is generally the IP address assigned by the UIM card dial-up.

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7. Transmission security of 4G routers and 4G DTU terminal equipment

The terminal device using the 4G router must use the specified IP address, and any other address cannot communicate; after the data of the terminal device passes through the 4G router, the encrypted content is transmitted using the wireless network, and the intercepted content in the wireless network is intercepted. The transmitted data cannot generally be decrypted, and the encrypted data can only be decrypted correctly by the designated communication server; at the same time, all data has a unique corresponding serial number and other key processing, and the 4G router ensures that the terminal device data will not be replayed or replayed. send.

There is no such restriction on the IP address used by the terminal equipment using 4G DTU, so as long as the IP address can be assigned, it can communicate with the server system. IP header processing, intercepting the data transmitted in the wireless network, as long as the header information is simply removed, the transmitted data can be displayed; at the same time, the data is not processed accordingly, 4G DTU may cause the replay or retransmission of wireless data to be displayed. Cause system exceptions, thus posing security risks.

Changsha Zhongke Zhilian Technology Co., Ltd. is mainly engaged in the research and development, production and sales of 4G industrial routers, 5G industrial routers, industrial switches, DTU, RTU, LoRa gateways and smart device products. With the corporate positioning of "humanization, specialization, and technology", we constantly attract professionals with high quality and high education to join us; with the rapid development of the market economy, our company's products are also sold in foreign markets, including the United States, Germany, Russia, Egypt, India, Thailand, Singapore, Vietnam, India, Australia and many other countries. And we will always maintain our development momentum, continue to expand domestic and foreign markets, and become bigger and stronger. All colleagues of Changsha Zhongke Zhilian Technology Co., Ltd. have always adhered to the premise of technological development and innovation, and customer service as the basis, and constantly improved the construction of the company's soft and hard facilities.