What is the serial port transmission ofLte modem? Why do you want to use the serial port transparent function?

Abstract: This paper will deeply analyze the serial port transparent transmission function in Lte modem ,Explain how it works, application scenarios, and why it is so important in the Industrial Internet of Things.By understanding serial passthrough, readers will better understand how to achieve seamless data transmission between different devices and networks.

In the Industrial Internet of Things (IIoT),Lte modem plays the role of bridging traditional devices and the cloud.As a link between different devices and networks,Lte modem needs to have efficient and reliable data transmission capabilities.Among them, the serial port transparent function is one of the key technologies to achieve this goal.

Lte modem and serial port transparent transmission

Lte modem is a device for data transmission through 4G network, which usually has multiple interfaces, such as Ethernet, Wi-Fi and serial port.These interfaces enable theLte modem to connect to different types of devices for data acquisition and transmission.

Serial Pass-Through means that theLte modem sends the data received by the serial port to the other end through the network intact.At the same time, the data received from the network is sent out through the serial port intact.In short, serial port transmission realizes the direct transmission of data between different interfaces.No additional processing or conversion is required inLte modem.

Working principle of serial port transparent transmission

When the serial port passthrough function is used, theLte modem will monitor the data input of the serial port.Once it detects the data, it immediately encapsulates the data into network packets and sends them out over the 4G network.Similarly, when theLte modem receives a packet from the network, it parses the packet and sends the data out through the serial port.

Because that serial port transparent transmission function doe not carry out any modification or processing on data,Therefore, the integrity and real-time of the data are well guaranteed.This makes the serial transmission a very suitable technology for real-time data acquisition and transmission.

Why should I use the serial port passthrough function?

The main reasons for using the serial port passthrough function are as follows:

· High real-time requirements: For some application scenarios that require real-time data transmission, such as industrial automation, environmental monitoring, etc.The use of serial transmission can ensure the real-time and accuracy of the data.

· Strong device compatibility: As a widely used interface standard, serial port is compatible with many traditional devices.These traditional devices can be easily connected to the 4G network by using the serial pass-through function.

· The development cost is reduced: because the serial port transparent transmission function is simple and direct, complex data processing or protocol conversion is not required in theLte modem,Therefore, development cost and maintenance cost can be reduced.

· High flexibility: serial port transmission function can adapt to a variety of different data transmission requirements.Simply configure the parameters of the serial port (such as baud rate, data bit, stop bit, etc.).The data transmission between different devices can be realized.

The serial transmission function ofLte modem has important application value in the industrial Internet of Things.It realizes the seamless transmission of data between different interfaces and ensures the real-time and integrity of data.The development cost and the maintenance cost are reduced, and the compatibility and the flexibility of the equipment are improved.With the continuous development of the industrial Internet of Things, the function of serial transparent transmission will be widely used in more scenarios.