Chapter 4 Quick Start (3) After the users click Download on the Option menu, or on the toolbar, the Transfer Items window will appear. The hardware configuration will be downloaded to the CPU module after OK is clicked. (4) After the hardware configuration is downloaded to the CPU module successfully, the BUS FAULT LED indicator on the CPU module will be OFF. The users can close the HWCONFIG window. If the BUS FAULT LED indicator on the CPU module is still ON or blinking, the CPU module is in an abnormal state. 4-31