9 | P a g e A 1 0 H a r m o n y T M C o n t r o l l e r 2 0 0 0 I n s t a l l a t i o n G u i d ePower-OnThe device automatically boots when the power plug is connected to an electrical outlet. If the unit does notboot automatically, it can be manually booted by quickly flipping the power switch.NOTE: Power OFF – To perform a graceful shutdown, use the shutdown command inthe CLI. If you made any changes to the device configuration, you will beprompted to save your configuration information before the device powersdown.Force Power OFF – If the system stops working and requires a forced shutdown,press and hold the power switch for four seconds. Keep in mind that this forcedshutdown will cause a loss of configuration information that has not bemanually saved.