Kategorie: Nachrichten (page 121)

Two-way communication Usually the serial port on the PC is a full-duplex device, which means it can send and receive data at the same time. To do this, it uses separate lines to send and receive data. Some types of…

GPRS DTU is also called gprs data transmission terminal. It is a gprs networking device formed by the gprs module embedded on the circuit board and a sheet metal shell. It is a wireless version of the serial port server.…

Basic usage of DTU DTU initiates a TCP/IP communication request to the data center through the data center’s IP address, port number and other parameters. After receiving the response from the remote server, DTU implements remote networking requirements, maintains data…

The Internet of Things (IoT) is considered to be the third wave of development of the world’s information industry after computers and the Internet, and is also called the fourth technological revolution . At present, most of the Internet of…

Local area networks such as WiFi or Bluetooth are already mature technologies. There are well-established standards for this type of small wireless communication, such as WiFi, Bluetooth 4.0, Zigbee and Z-Wave. But the biggest problem with many LANs/Personal Area Networks…

Starting from the analysis of NB-IoT Internet of Things technology, it introduces the physical layer of the NB-IoT system and its coexistence with other systems, introduces the LTE system and GSM system, and analyzes the necessity of research on their…

In order to make the transmission of networking equipment such as industrial routers, DTUs, and serial servers more stable, these devices will be equipped with anti-surge, anti-static, anti-pulse and watchdog protection. Among these hardware protections, there is one that can…

The 4g module is a cellular communication device that uses two standards, TD-LTE and FDD-LTE, and is loaded into a designated frequency band. The software supports the basic circuit set of the standard LTE protocol and is an IoT communication…

What is RS232 protocol? The RS232 protocol is a popular serial interface used to connect computers to networked devices such as serial servers. We will look at the serial port pins used to implement RS232 and some other reference information…

On March 11, 2021, the 3rd Internet of Things Industry Innovation and Development Conference (Chengdu, China) and the 2020 Internet of Things Industry Annual Conference were held in Jingronghui, Chengdu. The theme of this conference was “Integrated Innovation Intelligent Internet…