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Recommended Practices for Cisco Interface Cards
Safety Recommendations
To prevent hazardous conditions, follow these safety recommendations while working with this
equipment:
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Preventing Electrostatic Discharge Damage
Electrostatic discharge can damage equipment and impair electrical circuitry. Electrostatic discharge
occurs when electronic printed circuit cards, such as those used in Cisco interface cards, are improperly
handled and can result in complete or intermittent equipment failure. Always observe the following
electrostatic discharge damage (ESD) prevention procedures when installing, removing, and replacing
Cisco network modules, Cisco interface cards, Cisco expansion modules, or other electronic printed
circuit cards:
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Keep tools away from walk areas where you or others could fall over them.
Do not wear loose clothing around the router. Fasten your tie or scarf and roll up your sleeves to
prevent clothing from being caught in the chassis.
Wear safety glasses when working under any conditions that might be hazardous to your eyes.
Locate the emergency power-off switch in the room before you start working. If an electrical
accident occurs, shut the power off.
Before working on the router, turn off the power and unplug the power cord.
Disconnect all power sources before doing the following:
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Installing or removing a router chassis
Working near power supplies
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Do not work alone if potentially hazardous conditions exist.
Always check that power is disconnected from a circuit.
Remove possible hazards from your work area, such as damp floors, ungrounded power extension
cables, or missing safety grounds.
If an electrical accident occurs, proceed as follows:
Use caution; do not become a victim yourself.
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Turn off power to the room using the emergency power-off switch.
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If possible, send another person to get medical aid. Otherwise, determine the condition of the
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victim and then call for help.
Determine if the person needs rescue breathing or external cardiac compressions; then take
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appropriate action.
Make sure that the router chassis is electrically connected to earth ground.
Wear an ESD-preventive wrist strap, and make sure that it makes good contact with your skin.
Installing Cisco Interface Cards in Cisco Access Routers
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