IBM 8202-E4B Manual page 156

Figure 106. Control panel
v A: Power-on button
v B: Power LED
– A constant light indicates full system power to the unit.
– A flashing 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 flashing to solid. During the transition period, the LED
might flash faster.
v C: 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.
v D: System information light
– No light indicates that the system is operating normally.
– Light on indicates that the system requires attention.
v E: USB port
v F: Enclosure fault roll-up light
– A constant light indicates a fault in the system unit.
– No light indicates that the system is operating normally.
v G: Function/Data display
v H: Decrement button
v I: Enter button
v J: Increment button
v K: Pinhole reset button
Related concepts:
Identifying a failing part
Use these instructions to learn how to locate and identify a failing part on your system or expansion unit
using the appropriate method for your system.
140
Disk drives or solid-state drives