Specifications

Chapter 1: Introduction
1.2.7 Power Supply Units
Part Number: - IFT-9274CPSU
The 24 BAY subsystems is equipped with three (3), hot-swappable, 1U-profile, 405W
PSU modules (see Figure 1-10). The PSU modules are located on the rear panel
of the subsystem.
Figure 1-10: PSU Module
Each PSU module comes with a power socket for power cord plug-in and is turned on
and off using a power switch on the enclosure chassis. Each PSU also comes with two
(2) embedded cooling fans to provide sufficient airflow across its heat-generating
components. A single LED indicates the PSU status. A handle at the back of the PSU
makes it easier for you to install or 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 secures the PSU to the enclosure.
If the PSU needs to be removed, the retention screw must be removed first. After
installing a new PSU module, make sure that the retention screw has been firmly secured.
The shipping package contains adjustable cable clamps that can be used to keep the
power cords attached to the PSU in case the system experiences shock or vibration.
PSU specifications are shown in Appendix A.
Subsystem Components
1-11