
Installing the Hardware 13
Environmental Parameters
AC Power Requirements
DC Power Requirements
Power Supplies
The S55 and the S60 are designed to support two hot-swappable power supplies
with integrated fans that provide the cooling for the chassis.
Parameter S55 Specifications S60 Specifications
Temperature 32° to 104°F (0° to 40°C)
-40° to 158°F (-40° to 70°C)
32° to 122°F (0° to 50°C)
-40° to 158°F (-40° to 70°C)
non-operating
Maximum altitude No performance degradation
to 10,000 feet (3,048 meters)
No performance degradation
to 10,000 feet (3,048 meters)
Relative humidity 10 to 85% non-condensing 10 to 85% non-condensing
5 to 95% non-condensing
(non-operating)
Shock MIL-STD-810 MIL-STD-810
Vibration Bellcore GR-63
Parameter S55 Specifications S60 Specifications
Nominal Input Voltage 100 to 240 VAC, 47-63 Hz 100 to 240 VAC, 50/60 Hz
Maximum AC Power
Supply Input Current
5 A 2 A at 100/120 VAC
Maximum System
Power Input
135 W 225W
Parameter S55 Specifications S60 Specifications
Nominal Input Voltage -43 to -72 VDC at startup
-36 to -72 VDC during normal
operation
–40 to – 60 VDC
Maximum Power
Supply Input Current
10 A 3.6 A at -48 VDC
Maximum System
Power Input
135 W 225W
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