Power Supply Bay information

ERS/FT Power Suppy Bay

Power Supply Bay

The power supply bay is located on the right side of the subsystem when viewing the front of the enclosure. This bay houses the single (ERS II) or dual (ERS/FT II) 375 watt power supplies. The purpose of the dual supplies in the ERS/FT II is to provide fault tolerance in the event of a single power supply failure. Fault tolerance is further supported by separate power input receptacles which allow each supply to be powered by a separate power source.

LEDs located on each power supply reflect the status of the supply. These LEDs are located on the top of each supply. A green LED indicates that the supply is functioning and providing power to the subsystem. An amber LED indicates a power supply fault. Because the LEDs on the power supplies are only visible when the top panel is removed from the unit, the ERS/FT II provides a duplicate set of LEDs on the front panel console.

The Cubix power supply is contained in a canister type of enclosure to make replacement as straightforward as possible. Each supply is fan cooled. The power supply load should be limited to 375 watts average, and the air inlet temperature of the subsystem should be maintained between 0 and 40 degrees Celsius. Appendix B - Power Supply contains load considerations and BTU calculations.