Data on RS-232 is normally sent using signal lines, which have the following meanings: There are two types of devices involved in serial communication: DTE (Data Terminal Equipment) - a controller of serial connection, computer that fits a male serial port connector, and DCE (Data Circuit-terminating Equipment) - a modem with a female COM port connector. Name the preset and click the ’Save preset’ button.Select the lines for the ‘IN’ side of the pair and connect them to the required ‘OUT’ side lines by checking the corresponding boxes.In the Serial Ports Explorer choose the required virtual COM port pair.Standard RS-232 null modem pinout preset scheme: Custom COM port pinout preset can be selected and saved by a user in the software settings.Loopback Mode allows virtual COM ports communicate using RS232 loopback handshaking.Standard is the default serial port pinout for serial communications with partial handshaking.

The software offers three different options for setting signal lines pinout: That means, developers of complex serial communication systems will be able to manage signal lines pinout either by using already existing standard pinout presets or by creating their own COM port pinout presets. Virtual COM Port Emulator is a professional utility that allows setting custom serial port pinouts. Depending on the type of serial port, the form of a serial connector will differ. When it’s required to connect two serial peripherals directly (without using a modem or any other Data Communications Equipment) users rely on a null modem cable.Ī serial communication standard is widely used for long-distance connections or data exchange in computer networks where a parallel connection is inefficient due to synchronization issues and the cost of the cable.Īs is known, serial devices exchange information via COM ports connected by a serial cable. In the field of telecommunications, the term ‘serial connection’ means the process of sending data via a communication channel or a computer bus serially, one bit at a time.

Serial port pinout db9