UX48 Owners Manual16OperationStarting up the unitThe unit will power up as soon as power is applied to the IEC power inlet; there is no power switch. When poweris present the unit will go through its start-up cycle - first all the indicators will illuminate then go off, while thescreen displays the boot loader information. Next the screen will display the application firmware information,and all the mute buttons will illuminate. The display will then show the Home screen indicating input/outputconfiguration; the mutes will then return to the state they were in when the unit was powered off.