√ The equipment has been dropped or damaged
√ The equipment does not operate correctly when you follow the
operating instructions
• Do not spill food or liquid on the equipment.
• Never operate the equipment in a wet environment.
• Do not push any objects into the opening of the equipment. Doing so may short
internal components and cause fire or electric shock.
• Use the system only with approved equipment.
• Allow the product to cool before removing any peripherals.
• Operate the equipment only from the type of external power source indicated on the
electrical ratings label. If you are unsure of the type of power source required,
consult your local power company.
• Use only approved power cable(s).
• To help prevent electric shock, plug the system and peripheral power cables into
properly grounded electrical outlets. Do not use adapter plugs or remove the
grounding prong from a cable. If you must use an extension cable, use an
extension cable with properly grounded plugs.
• Observe extension cable and power strip ratings. Ensure that the total ampere rating
of all products plugged into the extension cable or power strip does not exceed 80% of
the ampere ratings limit for the extension cable or power strip.
• To protect the equipment from sudden, transient increase or decrease in
electrical power, use a surge suppressor, line conditioner, or uninterruptible
power supply (UPS).
• 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.
• To avoid possible damage to the system board, wait 5 seconds after turning off
the system before removing a component from the system board or disconnecting
a peripheral device.
• When connecting or disconnecting power to the hot-pluggable power supply units,
observe the following guidelines:
√ Unplug the power cable before removing the power supply.
√ Install the power supply to the system before connecting the power cable to
the power supply.
√ If the system has multiple sources of power, disconnect power from the system
by unplugging all power cables from the power supplies.
• When disconnecting a cable, pull on its connector or on its strain-relief loop, and
not on the cable itself.
3 Network Switch Installation Guide
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