Ulysses Upper Equipment Bay

You clicked on the Power Distribution Unit (PDU).

The Power Distribution Unit is part of the Power Subsystem which regulates and distrubutes power to the spacecraft. The PDU contains the following functional units:

• Redundant switches for the Electronic Power Converters (EPCs).

• EPC changeover logic.

• 16 experiment switches.

• Two experiment heater switches (payload bus)

• Six experiment heater switches.

• Foldback current limiters for the decoders.

• Latching current limiters for the wire boom drive, axial boom drive, and receivers.