- 139 -6.11.4. Communication TestTap the 4:COM button in the Test menu to perform the communicationtest for the USB interface port.1:USB: Performs the USB interface test.Tap the 1:USB button in the COM menu to start the USB interface test.The BHT starts connecting to the host computer usingActiveSync/WMDC.The pop-up dialog on the left is displayed during connection.Tap the Hide button to close the dialog or the Cancel button to cancel thetest.If the ActiveSync/WMDC connection is established…If the ActiveSync/WMDC connection is established, the "Network Begin"message sounds and the ActiveSync/WMDC icon is displayed in the taskbar (red circle shown on the right).If the ActiveSync/WMDC connection fails…If the ActiveSync/WMDC connection fails, the ActiveSync icon is not displayed in the task bar.