RS232 Port Splitter

Serial Splitter

Split real serial ports between several applications.

Common objectives and our solutions:

• One-to-many ports connection
  (split RS232 serial port)

Serial Splitter splits one RS232 port (real or virtual) into several ones, which are precise copies of the original port in the system.

Serial Splitter will give you a possibility to split real COM1 into virtual COM2, COM3, COM4 ports. To create a pure virtual ports pair you might also try Virtual Serial Port Driver

Here`s a real-life example: A sale on a cash register is made. The cash register sends text by means of a serial port (COM1) to a computer. The software on the receiving computer takes the text from the serial port, and prints some of it to a video file. With Serial Splitter one-to-many ports splitting, you have a chance to view this information from several computers or applications.

• Many-to-one ports connection
  (join serial ports)

Eltima Serial Splitter can help you to join a great number of RS232 COM ports into one serial port. Thus, a single application connected to the port at the OUT side of the bundle receives information from several devices.


For example: 100 websites are hosted on 100 computers. Via null modem a certain data is delivered from these computers to a PC with a microcontroller. Eltima Serial Splitter joins COM ports and sends all dataflow to one virtual serial port. Single application receives and represents all information about the status of a 100 server hosts at once.

• Many-to-many ports connection
  (complex bundling)

Serial Splitter gives you a possibility to manage complex bundles of COM ports. You will be able to set up connection between a number of real, virtual or both kinds of serial ports in either incoming or outgoing direction.


Besides RS232 data transmission, Serial Splitter gives the option to set Main Port for either side (IN/OUT) to manage control lines of a corresponding serial port.

Serial Splitter:

• Adds virtual and physical RS232 COM ports to the configuration in real time
• Creates unlimited number of virtual serial ports
• Delivers reliable and high speed data exchange with virtual serial ports
• Is designed to provide simple ports bundles installation without specific programming skills
• Automatically configures ports bundles every time you boot your PC

Serial Splitter overview:

• All-in-one functionality: split, join, bundle serial ports
• One serial port can be split into any number of virtual and physical serial ports
• Any number of serial ports can be joined into one, you can create additional virtual serial ports to be joined into one
• Complex bundles can be organized and managed through a simple configuration
• Bidirectional data transfer
• Set Main Port with rights manage control lines on each side of connection
• Full emulation of hardware control lines, baudrate and flow control support
• Full support of wide range of GPS devices and software
• Fully compatible with HyperThreaded and multi-processor systems

Serial Splitter is aimed to assist:

• Communication System Development
• GPS Development
• Radio/Telecommunication Companies
• Any business with a need to implement advanced data exchange between serial devices and applications
• System programmers
• System administrators
• Hardware and software integrators