Network serial port transparent transmission solution

我芯永恒

Network serial port transparent transmission solution [Copy link]

When I just graduated, I worked as an electromechanical engineer on the spraying line of an automobile company. Factory equipment is becoming more and more intelligent. The engineer who led me can adjust the parameters and status of all equipment in the factory by just turning on the computer. I felt very magical when I just graduated. The engineer told me that not only in the field of industrial control, but also in systems such as power transmission, smart home, one-card pass and medical equipment, there are thousands of sensors, PLCs, card readers or other devices that are connected to form a control network and managed in a unified manner. The most commonly used communication method to connect these devices is the RS485 bus. I thought that compared with Ethernet, the RS485 bus has greater limitations in transmission distance and unified management. So how to break through the limitations of RS485 serial port terminals in transmission distance and unified management? How is remote multi-location control similar to that in the factory achieved?

Here I recommend you the network serial port transparent transmission series chips CH9121 and CH9120, which can easily realize the function of fast networking of serial port devices. Let me introduce them to you.

The big brother CH9121 has been on the market for many years. It is both civil and military ( 2 independent serial ports ), talented ( can connect to 8 clients under TCP SERVER ), fast ( built-in 10/100M adaptive Ethernet ), knowledgeable ( supports virtual serial port mode ), and is an absolute Mr. Big Scene ( high-performance network serial port transparent transmission chip ).

The newcomer CH9120 makes a shining debut. It is much smaller than its big brother ( QFN28 4*4mm ). It is of the same lineage as its big brother and inherits many of the same excellent bloodlines, but its personality is different. The little brother is single-minded ( 1 serial port ), calm ( built-in 10M Ethernet ), and cost-conscious ( low-power working current 12mA ). It is an economical and practical man that is essential for home ( cost-effective network serial port transparent transmission chip ).

What the two chips have in common:

> Realize bidirectional transparent transmission of serial port data and network data

> Built-in Ethernet media transmission layer (MAC) and physical layer (PHY)

> Support MDI/MDIX line automatic conversion

> The working mode supports TCP CLIENT, TCP SERVER and UDP mode

> Serial port baud rate supports 300bps ~ 921600bps

> The serial port supports full-duplex and half-duplex serial communication, and supports RS485 automatic switching between sending and receiving

> Network parameters such as working mode, port, IP, and serial port baud rate can be configured through the host computer

> Support virtual serial port

CH9120 and CH9121 are of the same lineage and have similar functions, but their application scenarios are different. In comparison, CH9120 has a higher cost-effectiveness, whileCH9121 has a wider applicability. The following is a brief summary.

CH9120DS1.PDF (232.26 KB, downloads: 7)

2019-7-4 14:02 上传

点击文件名下载附件

CH9121DS1.PDF (173.56 KB, downloads: 8)

2019-7-4 14:02 上传

点击文件名下载附件

chenzhufly

This ad is well done, and there is still some stuff

我芯永恒

chenzhufly posted on 2019-7-4 15:26 This ad is well done, and there is still some product

Haha, thank you for your support! Product quality is the best advertisement.