Power Requirements - DEC AlphaServer 1000A Owner's Manual

Power Requirements

Your system ships with one primary power supply and the option of a second power
supply. The second power supply provides redundant power to the system. Both the
primary and secondary power supplies connect to an AC outlet. An internal cable
connecting the two power supplies is required when using the second power supply.
Voltage selection is not required. The system is intended for use at all rated AC-
input voltages. Table 2-2 lists the power supply ratings for systems using one or two
power supplies. Figure 2-2 shows the power supply requirements for a system with
one power supply.
Table 2-2 Power Supply Ratings
Specification
Voltage
Frequency
Current
Note: These ratings are the maximum with a fully loaded system enclosure and do
not include a monitor or terminal.
Figure 2-2 Power Supply Requirements (Single Power Supply)
100-120 VAC 7.5A 50-60 Hz
220-240 VAC 3.5A 50-60 Hz
= Properly grounded power receptacle
AlphaServer 1000A Owner's Guide
Range
100-120/220-240 volts AC
50-60 Hz
8.5/4.0 amperes (one power cord)
7.5/3.5 amperes (two power cords)
Power Supply
Cable Socket
Power
Supply
Cable
MA00937
Hardware Installation 2-3