Best null-modem software for free download

Network Serial Port Kit allows you to connect any serial port devices over the TCP/IP network or Internet. Creation of local virtual serial ports pairs are available as well.

Program creates up to 254 virtual serial ports at a time. Physical COM ports located on remote computer can be connected to host computer over the network as well. You can connect data collection serial devices: bar code scanners, modems, sensors, meters, gages, RF equipment, telephone PBX systems, laboratory or industrial instruments, and so on - to the serial ports of your computer to deliver that data anywhere over any TCP/IP based network.

For example you can convert usual PC to "Serial Port Server" so then you can connect any serial device directly to a TCP/IP network and communicate with that device from any other PC in the same network or across the Internet. This allows you to use existing Windows based serial communications software to send and receive data to remote serial device across a network.

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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. Virtual serial port pairs will look and work exactly like real hardware serial ports connected via null modem cables.Virtual Serial Port Kit is designed for software developer to speed up development process during debugging and data-logging period and cut months or even years from total project time. Virtual Serial Port Kit is useful also for users which work with Windows applications using serial COM ports joined by null modem cable especially if those applications require more than one serial port pair.

FEATURES
- full hardware serial ports emulation.
- virtual serial ports look and work like real hardware ports.
- physical null modem cables are not required.
- virtual communication is more fast (up to 250 Kb/s) and reliable than
via real null modem cable.
- Serial data transmission speed (bitrate) emulation
- virtual serial ports configuration via Windows Device Manager.
- compatibility with PnP and WMI technologies.
- compatibility with VMware.
- hot program install - no system reboot is required.
- up to 127 virtual serial port pairs can be created.
- one click enable/disable button for all virtual serial ports.
- user friendly program interface.

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Virtual Serial Port Driver by Virtual Serial Port Software, department of Eltima, is a sophisticated software solution aimed to create two pure virtual serial ports virtually connected to each other in your system. Therefore, without additional hardware installation you may use extra serial ports emulated at your computer. Deploying virtual COM ports you can do the same you do with the real one and for other windows applications they will be seen exactly as two real serial ports connected via null-modem cable. Unlike standard physical serial ports, virtual ports can be assigned any number and you can create as many virtual serial port pairs in your system as you want. The only limitation is the performance capacity of your system, as it may require a substantial amount of resources to emulate a lot of serial ports on the slow computers. VSPD XP emulates all serial port functionality and provides you with full support of Hand Flow control. In addition you can set custom pinout, apply line connection break and get complete information about virtual serial port condition. For example, you can create virtual pair COM6-COM7 and connect one application to another using it. In this case all data sent by other applications to COM6 will be supplied to COM7, and all data sent to COM7 will be supplied to COM6. This will ensure data exchange between applications. Such feature can be used for GPS simulation programs. In comparison with a real port a virtual serial port can be easily configured in accordance with your requirements. VSPD XP could be easily integrated into other software installations providing bundled software distributions. OEM version of VSPD XP enables the developers to control virtual serial ports directly from their own applications. On-the-fly installation makes VSPD XP presence invisible for the end-users. User friendly interface makes it very easy to configure and use virtual serial ports pairs.

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Serial to Ethernet Connector is an advanced software solution developed to share serial port devices over TCP/IP network. Thus, any serial port device connected to COM port at local PC could be accessed from anywhere in the world via internet, for example. When the attached serial port device sends communication data it will be actually transmitted over TCP/IP network. Such behavior is achieved due to the use of virtual serial port technology which emulates standard COM ports. In that case Windows OS treats virtual serial ports in the same way as real ones therefore you are no longer limited to just two real ports (any number of physical ports you have) per system and may create COM port connections without occupying any real serial port. Formerly known as VSPD.Net, Serial to Ethernet Connector has a completely new interface and greatly revamped engine. It allows you to use three different types to connect to remote computer. The first type is port-to-port connection, which lets you connect two computers through TCP/IP network. In this way you can emulate virtual null-modem cable connection. Serial to Ethernet Connector allows you to customize remote serial port settings locally or dynamically fetch these settings from the remote end. Second type is the port-to-TCP client, which allows you to connect to remote server and send/receive communication serial data over TCP/IP network. Once connection is established, all data sent from remote serial port device, attached to the server, will be genuinely delivered to local serial port where it can be further processed. The last type is the port-to-TCP server which allows you establish multiple connections to local serial port device and redistribute COM port device data all over the world. Server listens to all incoming connections at the defined TCP port and redirects input/output serial data to TCP/IP network. Serial to Ethernet Connector can be easily configured for current demands.

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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. Now with a revolutionary self-install technology that requires no additional Amiga software (PC filing system, terminal software, etc.) Supports serial and TCP/IP connections, including Bluetooth and Wi-Fi. Available in a standalone package or as part of Amiga Forever.

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Advanced Serial Port Terminal is a session-based, multi-purpose application that provides simple communication interface to connect to any serial port device (modem;fax;GPS;mouse;printer and so on). Whether you want to connect to remote computer using null-modem cable, send or receive various types of data (ASCII string, binary, octal and hexadecimal) over a serial line, redirect input or output data streams into a specified file, monitor data exchange between serial devices, troubleshoot and test modem settings, Advanced Serial Port Terminal by Eltima Software is just for you. Advanced Serial Port Terminal allows you to open as many serial ports as you like (including virtual serial ports); dynamically change serial port settings without necessity to close and reopen current port; adjust baudrate, databits, parity, stop bits, flow control parameters; save all received bytes into a file for later analysis and lots more. Being a session-based tool, Advanced Serial Port Terminal allows creation of options set and saving them under individual session names for different hosts. Unlike other terminals you may not only send, but also receive and view data in hexadecimal format, switch between dump and terminal view modes, etc, which could be very useful for debugging and testing serial port connections. Highly customizable interface lets you easily customize program interface to your taste and needs.

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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 n

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Virtual Serial Ports Driver XP is an advanced configuration utility, which purpose is to emulate RS232 serial ports connected via virtual null-modem cable using Virtual Serial Ports Driver, which can be easily included in your own software providing simple and robust way to create and configure virtual serial ports directly from your application (if you purchase OEM version only). In other words, with VSPD XP you can create any number of pure virtual serial ports in your system connected into pairs via virtual null-modem cable without having real serial ports occupied. Virtual Serial Ports appear to operating system or any Windows application as "standard" hardware serial ports. Virtual serial ports created by VSPD XP work exactly the same as real ports in your system managing all signal lines and emulating baud rate. Of course, you can transfer files, other data or do whatever you want as they were real serial ports. For instance, using Virtual Serial Ports Driver you can create two virtual serial ports: COM5 and COM6 and connect two different applications to them. Everything that the first application sends to COM5 will be received by the second application at COM6, and all data sent to COM6 by the second application will be received by the first one at COM5. "Hot" installation - no reboot required after installation, creation or reconfiguration of virtual serial ports.

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Virtual Serial Ports Driver CE creates up to 20 pure virtual serial ports in your mobile system, this results in up to 10 virtual serial ports pairs. Each pair has 2 ports that are virtually connected to each other. For other applications, virtual serial ports will be seen exactly as two real serial ports connected via virtual null-modem cable. You can select any port numbers for virtual serial port pair as well as change their names from COM to VSP. For example, you can create virtual pair COM5-COM6 (or VSP0-VSP9). In this case all data sent by other applications to virtual serial port COM5 (VSP0) will arrive at virtual serial port COM6 (VSP9), and all data sent to virtual serial port COM6 will arrive at virtual serial port COM5 (VSP0). This can be seen if you run two terminal programs available for your OS and connect one of them to virtual serial port COM5 and other one to COM6. Then, all you type in first terminal will appear at second one. Of course, you can transfer files, other data or do whatever you want as if there are more real serial ports in your embedded device. With Virtual Serial Port Driver CE you can connect one application to another using virtual serial ports pair. Applications will be able to exchange data. This solution can be used, for example, for GPS simulation programs.

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VSPD Mobile Phone Edition is a brand-new generation of already popular driver for mobile devices released by Eltima more than a year ago. Now we bring a totally new level of serial emulation for SmartPhones based on Windows Mobile platform! VSPD Mobile Phone Edition is capable of creating up to 20 pure virtual serial ports in your mobile system, this results in up to 10 virtual serial ports pairs available for testing and integration. Two ports in a pair are connected via a virtual null-modem cable and fully emulate real serial ports that may or may not be present in your device. You can select any port numbers (between 0 and 9) for virtual serial port pair as well as decide whether to use COM or VSP prefix. For example, you can create virtual pair COM5-COM6 (or VSP0-VSP9). In this case all data sent by other applications to virtual serial port COM5 (VSP0) will be received at virtual serial port COM6 (VSP9), and all data sent to virtual serial port COM6 will be received at virtual serial port COM5 (VSP0). This can be seen if you run two terminals connected to both sides of the virtual serial ports pair. Everything typed in the first terminal will appear at the second one. Virtual serial ports pair can be used to transfer files, other data and do anything as if there are additional real serial ports in your smartphone. With Virtual Serial Ports Driver Mobile you can connect one application to another using virtual serial ports pair. Applications will be able to exchange data. This solution can be used, for example, for GPS simulation software.

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Advanced Virtual COM Port 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 it can create virtual COM ports and connect them with a
virtual null-modem cable locally or through a TCP/IP network or the Internet.

You can connect to a shared port and use it just like it is on your machine. Virtual serial ports
created by the program look and work the same way as real ones look and work.

Main features:
- Virtual COM Ports appear to the system and applications like real ones
- Virtual COM Ports work like real ones
- 64-Bit compatible (AMD64)
- Hot Virtual COM Port creation and removal (no need to reboot the computer)
- Once created, Virtual COM Ports persist in the system until you remove them
- No need to have physical serial ports (except for the physical ports sharing function)
- Higher data transfer rate than on hardware serial ports
- Up to 255 Virtual COM Ports can be created
- PnP, WMI support
- Flow control emulation supported
- Easy port state monitoring
- Ability to temporarily remove all ports without losing their configuration

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Serial Splitter (by Eltima Software ) is an advanced application which lets you split serial ports at one side into multiple virtual and real serial ports at the other one, as well as join multiple serial ports into one. Serial Splitter can be used to execute the following operations: split real or virtual serial port into several others, join several serial ports (virtual or real) into one, redirect dataflow from virtual serial ports to the real ones or between virtual or real serial ports and organize complex bundles with multiple ports at both sides. Since version 3.0 Serial Splitter features unique ports bundles approach, which lets you split serial ports at one side into multiple virtual and real serial ports at the other one, as well as join multiple serial ports into one. Another unique feature is many-to-many ports splitting/redirection: you can have multiple serial ports at both sides of a bundle; the data will be redirected from several incoming ports to several outgoing ports. Using our technology of setting main ports at both sides of a bundle, you will be able to easily manage hardware control lines. Note, that both sides of a bundle can have virtual serial ports and real serial ports installed. So, Serial Splitter, based on Windows kernel drivers technology and Eltima Virtual Serial Ports Driver, will enable you to share real serial port between several applications in a way that all applications will receive the same data from one serial port simultaneously. It is achieved by creating virtual serial ports, which are same copies of real ones. Each application will think that it is working with serial port in exclusive mode. One of them will be able also to send data to real serial port. Now you can connect two or more applications to one real serial port with only several clicks.

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