Rackable Systems OmniStor 4900F Series, User Manual, Page: 18 / 196

Chapter 1 - Getting Started
Power System
4
Power System
Standard AC Hot Swappable Power Supplies
The AC power system consists of two 350-watt hot-pluggable power supplies, each with
independent AC power cords and cooling fans. This power system provides the enclosure
with “N+1” redundant power. Each power supply has auto-switching circuitry for use with
either 100V or 240V AC systems.
AC Power Supply
Power is applied to the enclosure by pressing the power supply On/Off switch to the “On”
position. A Power On LED located on each power supply will be illuminated indicating
that AC power has been applied. The front bezels’ Power On LED will also be illuminated
indicating that power has been applied.
Each power supply also incorporates an amber general Fault LED. If the power supply is
installed and power is not applied to the power supply or the power supply cooling fan fails,
the Fault LED will illuminate, along with an audible alarm.
The front bezels’ Power Supply Status LED will illuminate green when both power
supplies are on and operating normally. If only one power supply is operational, the Power
Supply Status LED will be illuminated amber.
Each power supply has an AC Power Cord Module. The module has a power cord bale
incorporated into the design to secure the power cord once it has been properly inserted.
The bale prevents inadvertent disconnects.