AC Power Supplies

Two 460 watt AC power supply models, ordered separately, are available for the SSA switch:

• SSA-FB-AC-PS-A—I/O port side air exhaust
• SSA-FB-AC-PS-B—I/O port side air intake

Each power supply option contains a single non-reversible fan. The two power supply options are differentiated by the direction of the power supply fan airflow. Power supply airflow must agree with the airflow direction of the installed fan modules.

The SSA AC power supplies automatically adjust to the input voltage and frequency, which allows for an input voltage of 100 to 240 VAC, and a frequency between 50 and 60 Hz. See the operating specifications in SSA Switch Specifications. No additional adjustments are necessary. For installations in North America, a 15 Amp power cord is required. See Powering Up the SSA Switch for more details.

You can install up to two power supplies in the rear of the SSA chassis. All the power supply needs of the SSA switch can be met by installing a single power supply. If you choose to use two power supplies, system power redundancy is guaranteed if one supply is lost. Power supplies are hot swappable in redundant power supply mode.

For more information, see Installing the Power Supplies.

For information about the power supply LED, see Power Supply LED Status Definitions.