When the serial communications application opens COM3, Serial Port Redirector initiates connection to specified TCP-port of the remote computer. This virtual serial port is configured to use the remote IP address and TCP-port which the TCP/IP application listens on. The serial communications application is running on the local computer and uses virtual serial port COM3 created by Serial Port Redirector. In this example, the TCP/IP application is running on the remote computer and listens on the specified TCP-port for incoming connections. Serial Port Redirector can be used to connect usual serial communications software with TCP/IP software. Usually, RFC2217 protocol (Telnet Com Port Control Option) is used to access serial devices attached to serial device server.Ĭonnecting Serial Communications Application with TCP/IP Enabled Application The modem software interacts with the modem as if it was plugged into a local COM port, but in fact the modem is attached to the remote Serial Device Server. Now, modem software on the local computer opens virtual COM3 port.Īs result the connection with the remote modem is established and data exchange can be performed. In the example the US Robotics modem is plugged into the COM port with TCP-port 5001 on the Serial Device Server. When virtual serial port is created it is required to specify the IP-address of the Serial Device Server and TCP-port of a particular COM port.Īn individual TCP-port is assigned to a separate physical COM port on a Serial Device Server. To get access to the remote modem, Serial Port Redirector creates virtual COM port on the local computer (e.g. You need to get access to the modem from your local computer over local network or the Internet. In this example, Modem US Robotics is physically attached to the COM port on the remote Serial Device Server. Serial Port Redirector can be used to access remote serial devices connected to serial device servers. Accessing devices plugged to Serial device server

Serial port redirector