Intel® Server System S7000FC4UR TPS 1570W Power Supply
Revision 1.0
85
For any conditions during turn-on, the inrush current will not open the primary input fuse or
damage any other components.
10.1.5 Auto Restart
Although the power supply may power off under the conditions mentioned in Sections 10.1.3
and 10.1.4, it is capable of restarting, either automatically or under program control after the
disturbance. In addition, the power supply will not be in a latched state such that any of the
operator buttons/buttons do not operate correctly after the disturbance. At no time will the AC
power cord have to be removed to clear an error condition.
Auto restart conditions are tested from -40% to -100% AC under-voltage conditions for time
intervals ranging from 25ms to 2sec. For each time interval, all of the under-voltage conditions
listed below will be tested. These tests are performed at both the lowest and highest nominal
operating voltages of the power supply.
Time intervals: 25ms, 40ms, 60ms, 90ms, 130ms, 200ms, 280ms, 400ms, 600ms,
900ms, 1.3sec, and 2.0sec
Under-voltage deviation from nominal AC voltage: -40%, -50%, -60%, -70%, -80%, -
90%, -100%
10.1.6 Power Factor Correction (PFC)
The power factor is greater than 0.99 at 100VAC to 127VAC input voltages.
10.1.7 AC Input Connector
The AC input receptacle is an IEC-320* C14 15A rated for 250VAC minimum.
10.2 DC Output Requirements
The DC output voltages will remain within the regulation ranges shown in the following table
when measured at the load end of the connector.
Table 22. DC Output Voltage Regulation Limits
Output Level Minimum (V) Nominal (V) Maximum (V)
+12V 11.40 12.00 12.60
+3.3V standby 3.20 3.30 3.46
10.2.1 Hot Swap Functionality
Hot swapping is the process of inserting and extracting a power supply from an operating power
bay. During this process, the output voltages will remain within the limits specified in Table 22,
and the system will continue to operate normally.
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