IBM ThinkPad R30, Operator'S Manual

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4-6
Operator Guide
Power Distribution Unit (Supported)
The power distribution unit supplies 200 to 240 V ac from each of the six AC power outlets.
These outlets provide power to all the drawers in the rack. The optional battery backup unit
attaches to the power distribution unit and can provide 300 V dc to three drawers for 10
minutes. You can attach up to three additional drawers to the battery backup unit by using
the battery backup extender cables.
Note: The battery backup unit can provide power to drawers in your system during power
outages. Power to a terminal that controls your system can be interrupted during
power outages unless the terminal is connected to an uninterruptable power source.
The power distribution unit (PDU) is located inside the rear door at the bottom of the system
unit. Each AC power outlet is controlled by a power select switch located under it. The
switches can be set so that the outlets are either always on or switched on and off by the
power control signal.
Note: For a translation of this notice, see the System Unit Safety Information manual.
CAUTION:
The power distribution unit outlets provide 200 to 240 V ac. Use these outlets only for
devices that operate within this voltage range.
AC Power
Outlet