Virtual Null Modem

Null-modem cable is an essential tool for RS-232 DTE device communication. However, creating a connection between two devices using this cable can be complex and expensive, especially if you only have one computer or a single serial port. Fortunately, a virtual serial port driver and null-modem cable can be used to create a more reliable and affordable solution.

Virtual null-modem connection is achieved by emulating serial ports using software. This eliminates the need for additional hardware or a second computer, making it a more practical option for most users. To create this virtual connection, Virtual Null Modem software can be used.

This program emulates one or more RS-232 serial ports using a virtual null-modem cable, allowing users to create an unlimited number of virtual serial ports on a single PC. These ports can be connected in any sequence, making it possible to connect two applications via serial ports on the same computer.

Virtual Null Modem also allows users to add errors to the data exchange, simulating real-world situations that may occur during physical null-modem connections. This feature is useful for software developers and testers working in the field of industrial automation, as well as students learning about serial port communication.

Overall, Virtual Null Modem is a useful tool for establishing virtual null-modem connections and running multiple applications simultaneously on the same computer. A free trial version is available for download, allowing users to test the software before purchase.