EonStor U16U Installation and Hardware Reference Manual
1-12
Rear Panel Components
Figure1-12: PSU Module Rear View
Each PSU comes with a single power socket for power cord plug-in and is attached to a
single power switch located directly above it that will enable users to turn the PSU on and
off. Each PSU also comes with two embedded cooling fans that will provide sufficient
airflow to keep the PSU cool. A single LED is used to indicate the PSU status. A handle
at the back of the PSU has been especially designed to enable users to remove the PSU
from the subsystem while the system is still online. This should only be done if the PSU
has failed and needs to be replaced.
A retention screw on the right side of the PSU module is used to secure the PSU to the
enclosure. If the PSU needs to be removed, the retention screw must be removed first.
When installing a new PSU module, make sure that the retention screw has been firmly
secured.
The specifications for the PSUs are shown in
Table 1-3
below.
Specification
Nominal power
460 Watts with active PFC
Input voltage
100 to -10%
Input frequency
47 ~ 63 Hz
Input current
8A @90VAC; 4A @230VAC
Power factor
correction
Yes
Hold-up time
At least 16ms at 115/230VAC full load after a loss of AC input
Over temperature
protection
Lost cooling or excessive ambient temperature
Size
265(D) x 107(W) x 42.2(H) mm.
Cooling
11 CFM
Acoustic noise
115V input, full load of +5V; 0.5A of +12V
50 dB max.
Table 1-3:
PSU Specifications
