Figure 36. Control panel

vA: Power-on button

vB: Power LED

A constant light indicates full system power to the unit.

A blinking light indicates standby power to the unit.

Note: There is approximately a 30-second transition period from the time the power-on button is pressed to when the power LED goes from blinking to solid. During the transition period, the LED might blink faster.

vC: Enclosure identify light

A constant light indicates the identify state, which is used to identify a part.

No light indicates that the system is operating normally.

vD: System information light

No light indicates that the system is operating normally.

Light on indicates that the system requires attention.

vE: USB port

vF: Enclosure fault roll-up light

A constant light indicates a fault in the system unit.

No light indicates that the system is operating normally.

vG: Function/Data display

vH: Decrement button

vI: Enter button

vJ: Increment button

vK: Pinhole reset button

Power supplies 37

Page 49
Image 49
IBM 9117-MMB, 9179-MHB manual Control panel