Chapter 3: Subsystem Monitoring
3. If you install or replace a BBU, the subsystem recognizes the
presence of BBU only after a system reset.
3.2.5 PSU
LEDs
Each PSU comes with a single LED at the back (see
Figure 3-9
and
Figure 3-10
), located close to 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 3-9: PSU Module LED on S12E-R1132-4
Figure 3-10: PSU Module LED on S12E-G1133-2
Color
Status
Steadily Blinking
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 Amber
(S12E-R1132-4)/
Static Red (S12E-
G1133-2)
The PSU has failed and is unable to provide
power to the subsystem.
OFF
The PSU is not turned on and the power cord is
disconnected.
Table 3-6: PSU Module LED Definitions
3.2.6 Cooling Module LEDs
On S12E-R1132-4, each cooling module has two (2) amber LEDs
located on the PSU canister. Each LED corresponds to an individual
3-9
