We know that serial server are widely used in practical applications. So, do you know what a  serial server is? How to use the serial server? Let us follow JHA Technology to understand it.

1. What is a serial server?

Serial server: The serial server can make your serial devices networked, provide serial to network function, can convert RS-232/485/422 serial port into TCP/IP network interface, realize RS-232/485/422 serial port and TCP/IP The data of the network interface is transparently transmitted in both directions. It enables the serial device to immediately have the TCP/IP network interface function, connect to the network for data communication, and extend the communication distance of the serial device. You can use your computer to store, manage methods and equipment equipped with remote control via the Internet anywhere in the world.

2. How to use the serial server?

Device connection: First connect the serial port of the serial server to the serial port of the device, connect the RJ45 interface of the serial server to the router (or directly connect to the PC), and then power on the serial server.

Configure serial port parameters: The serial port server can be modified through the Web page. When modifying parameters through the Web page, the serial port server must be in the same subnet as the computer. Serial port parameters include: baud rate, data bit, stop bit, parity bit.

Configure network parameters: The serial port server must have an IP, which can be configured as static or obtained through a DHCP server. Configure the working mode of the serial networking server: including TCP SERVER mode (referring to the computer actively looking for the serial networking server), TCP CLIENT mode (referring to the serial networking server actively looking for the computer), and UDP mode. The purpose of configuring network parameters is to allow the computer to successfully establish a connection with the network server.

Enable virtual serial port: Because the PC software of the general user still opens the serial port to communicate with the device, at this time, because the network is used, a virtual serial port must be virtualized on the computer. The virtual serial port is responsible for establishing a connection with the serial server and forwarding the data to the open The user program of the virtual serial port. Run the user equipment communication program and open the virtual serial port. The user application can then communicate with the device.

3. In which fields are serial servers used?

Serial servers are widely used in access control/attendance, medical applications, remote monitoring, computer room management, and substation management. The serial port server can support virtual serial port protocol, so you don’t need to change the original PC software, provide transparent data conversion function between serial port and Ethernet port, support DHCP and DNS, it is full-duplex, no packet loss serial server.

RS232/485/422 three-in-one serial port, RS232, RS485, RS485/422, RS232/485 and other serial port combination products. In addition, there is a serial server with multiple serial ports and secondary development, which can meet all-round applications.