Galaxy A16F-R2422 Installation and Hardware Reference Manual
Subsystem Monitoring
3-8
Figure 3-6: BBU LED
3.2.8 PSU LEDs
Each PSU comes with a single LED at the back (see
Figure 3-7
), located
just above the power switch that turns on the subsystem. This LED indicates
the operational status of the PSU module. Please refer to the PSU LED
definitions shown in
Table 3-6
.
Figure 3-7: PSU Module LED
Color
Status
FLASHING
Green
The power supply has not been turned on. The PSU
module LED will blink when the subsystem is
connected to a power source but not yet turned on.
Static Green
The PSU is operating normally and experiencing no
problem.
Static Red
The PSU has failed and is unable to provide power to
the subsystem.
OFF
The subsystem has not yet been plugged into a power
source.
Table 3-6: PSU Module LED Definitions
3.2.9 Cooling Module LEDs
Each cooling module has two (2) red LEDs on the back. Each LED
corresponds to a single fan in the cooling module. (See
Figure 3-8
) When
