Specifications

System Overview 1-15
One to three power supplies provide power to components in the system chassis.
The system supports redundant power configurations to ensure continued
system operation if a power supply fails.
When more than one power supply is installed, the supplies share the load. The
power supplies select line voltage and frequency automatically (100 V or 120 V
or 200–240 V and 50 Hz or 60 Hz).
Power Supply LEDs
Each power supply has two green LEDs that indicate the state of power to the
system.
➊ POK (Power OK) Indicates that the power supply is functioning. The POK
LED is on when the system is running. When the
system power is on and a POK LED is off, that supply is
not contributing to powering the system.
➋ +5 V Auxiliary
Indicates that AC power is flowing from the wall outlet.
As long as the power supply cord is plugged into the wall
outlet, the +5V Aux LED is always on, even when the
system power is off.
See Chapter 5 for instructions on installing additional power supplies.