Preventing Electrostatic Discharge Damage - Cisco Catalyst 9404R Switch Hardware Installation Manual
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Preventing Electrostatic Discharge Damage
• Use the product within its marked electrical ratings and product usage instructions.
• Install the product in compliance with local and national electrical codes.
• If any of the following conditions occur, contact the Cisco Technical Assistance Center:
• Use the correct external power source. Operate the product only from the type of power source indicated
• Use approved power cables only. You have been provided with one or more power cables with your
• To help prevent electrical shock, plug all the power cables into properly grounded electrical outlets.
• Observe power strip ratings. Make sure that the total current rating of all products that are plugged into
• Do not modify power cables or plugs yourself. Consult with a licensed electrician or your power company
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage may occur when modules or other FRUs are improperly handled, and
result in intermittent or complete failure of the modules or FRUs. Modules consist of printed circuit boards
that are fixed in metal carriers. EMI shielding and connectors are integral components of a carrier. Although
the metal carrier helps to protect the board from ESD, always use an ESD-grounding strap when handling
modules. To prevent ESD damage, follow these guidelines:
• Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
• Connect the equipment end of the strap to an unfinished chassis surface.
Cisco Catalyst 9400 Series Switches Hardware Installation Guide
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• If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
and then call for help.
• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.
• The power cable or plug is damaged.
• An object has fallen into the product.
• The product has been exposed to water or other liquids.
• The product has been dropped or shows signs of damage.
• The product does not operate correctly when you follow the operating instructions.
on the electrical ratings label. If you are not sure of the type of power source required, consult the Cisco
Technical Assistance Center or a local electrician.
chassis power supply that are intended for use in your country, based on the shipping location. Should
you need to purchase additional power cables, ensure that they are rated for the product and for the
voltage and current marked on the product's electrical ratings label. The voltage and current rating of
the power cable should be greater than the ratings marked on the label.
These power cables are equipped with three-prong plugs to ensure proper grounding. Do not use adapter
plugs or remove the grounding prong from a power cable.
the power strip does not exceed 80 percent of the power strip rating.
for site modifications. Always follow your local and national wiring codes.
Preparing for Installation
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Troubleshooting
