Product Overview 11
• To help prevent electric shock, plug the system and peripheral power cables into properly
grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure
proper grounding. Do not use adapter plugs or remove the grounding prong from a cable.
• Observe extension cable and power strip ratings. Make sure that the total ampere rating of all
products plugged into the power strip does not exceed 80 percent of the ampere ratings limit
for the power strip.
• To help protect your system from sudden, transient increases and decreases in electrical
power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).
• Position system cables and power cables carefully. Route cables so that they cannot be stepped
on or tripped over.
• Be sure that nothing rests on any cables.
• Do not modify power cables or plugs. Consult a licensed electrician or your power company
for site modifications. Always follow your local/national wiring rules.
Rack Mounting of Systems
• Refer to the rack installation documentation accompanying the rack for specific caution
statements and procedures.
• System rack kits are intended to be installed in a rack by trained service technicians. If a non-
Dell rack is utilized, be sure that the rack meets the specifications of a Dell rack.
• Elevated Ambient Temperature: If installed in a closed rack assembly, the operation
temperature of the rack environment may be greater than room ambient. Use care not to
exceed the rated maximum ambient temperature of the unit.
• Reduced Air Flow: Installation of the equipment in a rack should be such that the amount of
airflow required for safe operation of the equipment is not compromised.
• Mechanical Loading: Mounting of the equipment in the rack should be such that a hazardous
condition is not achieved due to uneven mechanical loading.
• Circuit Overloading: Consideration should be given to the connection of the equipment to
the supply circuit and the effect that overloading of circuits might have on overcurrent
protection and supply wiring. Consider equipment nameplate ratings for maximum current.
• Reliable Earthing: Reliable earthing of rack mounted equipment should be maintained. Pay
particular attention to supply connections other than direct conn ections to the branch cir cuit
(for example, use of power strips).