Connect your KPA1500 to a USB port on your personal computer.
Choose the serial port that is connected to your KPA1500. Click the down arrow to show the list of available serial ports and then select the port you have connected to your KPA1500. See Finding the appropriate serial port if you are not sure which port to choose.
Reopens the serial port and verifies that the KPA1500 Utility can communicate with your KPA1500 Amplifier and determine its speed.