Chapter 4. Power Supply
Chapter 4. Power Supply
The power supply requirements are supplied by a 85-watt (PC 300GL 6272) or 145-watt (PC 300GL
6282) power supply. The power supply converts the ac input voltage into four dc output voltages and
provides power for the following:
System board
Adapters
Internal DASD drives
Keyboard and auxiliary devices
A logic signal on the power connector controls the power supply; the front panel switch is not directly
connected to the power supply.
Power Input
The following figure shows the input power specifications. The power supply has a manual switch to
select the correct input voltage.
Figure 25. Power Input Requirements
Specification
Measurements
Input voltage, low range
90 (min)–137 (max) V ac
Input voltage, high range
180 (min)–265 (max) V ac
Input frequency
50 Hz
±
3 Hz or 60 Hz
±
3 Hz
Copyright IBM Corp. October 1997
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