HP 354556-002 - Manual (Page 71)

LEDs, buttons, and switches 71
HP BladeSystem p-Class 3U Power Supply LEDs
The power enclosure has two LEDs, one for each bus, to indicate DC power
presence. Use the following figure and table to identify LED locations and
functions.
Item LED Description Status
1 Bus B DC power Off = No DC power available
Green = DC power available
2 Bus A DC power Off = No DC power available
Green = DC power available
Buttons and switches
The system contains switches that reset the systems, identify components of the
systems, and establish the power zone settings. Use the following sections to
determine the location and functions of these switches on system components.
For information about switches on server blades, interconnect modules, hard
drives, and other devices, refer to the documentation supplied with each device.