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Chapter 6. Power System
Overview of Power System
General Description
The controller module's power system includes the following components:
v One battery FRU
v Two power supply FRUs
v Two power cords (one for each power supply)
v Three internal power harnesses
v Power supply assembly (includes power interface board)
These components provide power to the controllers and fans inside the chassis.
This chapter describes the basic features of the battery, power supplies, power
harnesses and power supply housing. In addition, it explains how to service these
components.
Figure 56. Controller Module Power System FRUs
Servicing the Power System
Power system problems include any malfunctions that delay or interrupt power
distribution to the controller module and its components. This includes both external
and internal power problems such as power outages, weak batteries, or a failure of
the power interface board. All power system failures are caused by some type of
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Troubleshooting
