Null-modem cable is basically used for communication of two RS-232 DTE devices with each other. To create null-modem connection between the devices you need to use two computers or two serial ports of a single computer connected with null-modem cable. The both methods described above are expensive and difficult because of many reasons. The most reliable way to create null-modem connection is using of virtual serial ports emulated by virtual serial port driver and null-modem cable. Why do you need to emulate serial ports and null-modem connection? There are few main reasons to do it. Firstly, you don't need to have two computers connected with real null-modem cable. Secondly, there’s no need in a single PC with several free serial ports and additional multi serial port devices which are expensive and bulky. To emulate null-modem connection Virtual Null Modem can be effectively used. The program emulates one or more couples of RS-232 serial ports connected via virtual null-modem cable. It is possible to create the unlimited couples of virtual serial ports on a single PC and connect them in any sequence using virtual null-modem cable. Usually you need to use virtual null-modem when you have two applications to be connected via serial ports. In contrast to ordinary connection you do not need any additional hardware (computers, physical serial ports, cables) to perform it. Virtual null-modem allows user emulate virtual null modem connection and run the two applications simultaneously on the same computer. Moreover, it is possible to emulate real-world situations by adding some errors to the data exchange which may occur during the physical null-modem connection. Owing to its features set Virtual Null Modem can sufficiently ease the work of software developers and testers occupied in the field of industrial automation. Furthermore, the program may also be useful in the reverse engineering as well as in educational needs. So go ahead and download FREE trial version now!
Virtual Serial Port Kit Virtual Serial Port Kit creates pairs of virtual serial ports in your system which are virtually connected to each other. Physical null modem cables are not required. You can connect any number of virtual port pairs. It's very useful for debugging.
Virtual Serial Port Driver XP4.5 Virtual Serial Port Driver XP (VSPD XP) is a powerful solution for serial port emulation. It creates virtual com ports in your system and connects them via reliable virtual link, which emulates real null-modem cable.
Eltima Virtual Serial Ports Driver XP Eltima Virtual Serial Ports Driver XP creates any number of virtual serial ports in your system and connects them into pairs via virtual null modem cable. You can create as many virtual serial ports in your system as possible to fit your needs.
Virtual Serial Port SDK Create and manage virtual serial ports from .NET and Visual Basic (ActiveX) All windows platforms supported. Windows Mobile/Pocket PC, Windows XP/2k/NT and Windows ME/98. Samples in C#, VB.NET and VB6
Virtual Modem PRO 3.0 Virtual Modem PRO works for every automation system that collects data from remote hosts using modem and telephone line. Virtual Modem PRO creates virtual com ports and attaches virtual modems to them, which work in the same way as real ones (support Hayes AT commands), however use TCP/IP protocol to connect to remote host. This gives better speed and reliability of transmitted data as well as up to 255 modems that can be created in any system.
Virtual Modem There are many old communication applications that require a direct modem connection. This program allows you to substitute physical phone lines with a local TCP/IP network or the Internet without investing thousands into new communication software.
COM Port Splitter COM Port Splitter enables you to add virtual and physical COM-ports to the configuration in real time, to create unlimited virtual serial ports, to deliver high speed data exchange with virtual serial ports and to configure ports bundles.
Amiga Explorer Connect an Amiga with one or more PCs, and access Amiga resources (e.g. files, floppy and hard disk images, ROM transfer, etc.) from the Windows desktop. Supports serial and TCP/IP connections, including Bluetooth and Wi-Fi.
Eltima Serial Splitter Eltima Serial Splitter enables youto add virtual and physical COM-ports to the configuration in real time, to create unlimited virtual serial ports, to deliver high speed data exchange with virtual serial ports and to configure ports bundles.
Virtual Serial Ports Driver CE Virtual Serial Ports Driver for Windows CE creates two pure virtual serial ports in your system which are virtually connected to each other. For other Windows applications they are seen exactly as two real serial ports with null-modem connection.
Advanced Virtual COM Port This is the first software of its kind which includes both local and network virtual COM port
functions. It can share your real COM ports or create virtual COM ports and connect them with a
virtual null-modem cable locally or through the network.
