Serial Port ActiveX Control - Version 3.0.0.0 Communicate with external devicesSerial Port ActiveX Control is designed to communicate with external devices, connected via RS232/422/485, such as modems, bar code readers, PBX, medical instruments, IrDA, Bluetooth and USB serial devices and so on.Fully control serial port activityOur Serial Port component features a variety of events, methods and properties to let you fully track serial port activity. You will see when a port was opened or closed, which data was sent or received and so on immediately. You can change serial port timeouts, lice and handflow control, line signals and special characters directly from your application.Manage serial port signal linesAll hardware signal lines (DTR/DSR, RTS/CTS, RING,