xSeries 343 Product Guide
27
DC Input Voltage Specification
The power supply will operate within all specified limits over the input voltage range outlined in
Table 8. The power supply will power-off if the DC input is less than -34 VDC.
Table 8.
DC Input Rating
Parameter
Minimum
Tolerance
Nominal
Rating
Maximum
Tolerance
Maximum Input
Current
Voltage
-38VDC
-48 to -60VDC
-75VDC
17.0 Amps
DC Output Current Specifications
The combined output power of all outputs will not exceed 450 W. Each output has a maximum and
minimum current rating, as shown in Table 9. The power supply meets both static and dynamic
voltage regulation requirements for the minimum dynamic loading conditions. The power supply
meets only the static load voltage regulation requirements for the minimum static load conditions.
Table 9.
DC Power Supply Input/Output Summary
Voltage Current
Rating
+3.3 VDC Output
20 Amp Max1
+5 VDC Output
26 Amp Max1
+12 V1DC Output
16 Amp Max2
+12 V2DC Output
12.0 Amp Max2
+12 V3DC Output
12.0 Amp Max2
-12 VDC Output
0.5 Amp Max
+5 VDC Standby
2.0 Amp Max
Output balancing
Total combined output power of all output shall not exceed 450 W.
DC Line Voltage
-48VDC to –60VDC
DC Input Current
17.0 Amp maximum
1. Combined 3.3V/5V shall not exceed 150W.
2.
Maximum continuous load on the combined 12V output shall not exceed 25A. Peak load on the combined 12V output shall
not exceed 30A for greater than 10 seconds.
AC Power Subsystem
This section defines the AC input switching power subsystem.
Features
•
500-Watt output capability
•
“Power Good” indication LEDs
•
Predictive failure warning
•
Internal cooling fans with multi-speed capability
•
Remote sense of 3.3 Volt, 5 Volt, and 12 VDC outputs
•
“AC_OK” circuitry for brown-out protection and recovery
•
Built-in load sharing capability
•
Built-in overloading protection capability
•
Onboard field replaceable unit (FRU) information
•
I
2
C interface for server management functions
•
Integral handle for insertion/extraction
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