Filter
Top Products
C-8 Dell PowerEdge 4350 Systems Users Guide
Each Dell system, when operating, is designed to withstand 0.25 G (half-sine wave) at
a sweep of 3 to 200 hertz (Hz) for 15 minutes. In storage, the system can withstand
0.5 G at 3 to 200 Hz for 15 minutes.
3RZHU6RXUFH,QWHUUXSWLRQV
Systems are especially sensitive to variations in voltage supplied by the AC power
source. Over-voltage, undervoltage, and transients (or
spikes
) can erase data from
memory or even cause components to fail. To protect against these types of prob-
lems, power cables should always be properly grounded and one or both of the
following methods should be used:
Use one of the power protection devices described in the following section,
Power Protection Devices.
Place the system on a dedicated power circuit (rather than sharing a circuit with
other heavy electrical equipment). In general, do not allow the system to share a
circuit with any of the following:
Copier machines
Air conditioners
Vacuum cleaners
Space heaters
Power tools
Teletype machines
Adding machines
Laser printers
Facsimile machines
Any other motorized equipment
Besides these appliances, the greatest threat to a systems supply of power are
surges or blackouts caused by electrical storms. Whenever possible, turn off the sys-
tem and any peripherals and unplug them from their power sources during
thunderstorms.
If a blackout occurseven a temporary onewhile the system is turned on, turn off
the system immediately and disconnect it from its power source. Leaving the system
on may cause problems when the power is restored; all other appliances left on in the
area can create large voltage spikes that can damage the system.
3502Ebk0.book Page 8 Friday, November 13, 1998 10:00 AM