Cisco Catalyst 5000 Series Installation And Configuration Note page 7

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Keep the chassis area clear and free of dust during and after installation.
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Keep tools and chassis components off the floor and away from foot traffic.
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Avoid wearing jewelry and securely fasten any loose clothing that could get caught in the chassis.
Warning
rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and
can cause serious burns or weld the metal object to the terminals.
Basic Electrical Safety Guidelines
When working with electrical equipment, exercise these basic safety guidelines:
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Never install equipment that appears to be damaged.
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Locate the emergency power-off switch for the room in which you are working before beginning
any procedures that require access to the chassis interior.
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Do not work alone when potentially hazardous conditions exist.
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Never assume that power has been disconnected from a circuit; always check.
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Do not perform any action that creates a potential hazard to people or makes the equipment
unsafe.
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Examine your work area carefully for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
Warning
lightning activity.
Preventing ESD Damage
ESD damage occurs when electronic modules or components are improperly handled and can result
in complete or intermittent failures. To prevent ESD damage, follow these guidelines:
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Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.
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When handling modules or coming into contact with any internal components, always use a wrist
strap connected to one of the following:
— Captive installation screws on an installed module or power supply
— ESD wrist strap connector
— Any unpainted surface on the chassis
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Handle modules by the edges only.
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Avoid contact between the modules and clothing. The wrist strap protects only the module from
ESD voltages on the body; ESD voltages on clothing can still cause damage.
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After removing a supervisor engine, place it on an antistatic surface or in a static-shielding bag.
If you plan to return the module to the factory, immediately place it in a static-shielding bag.
Caution
between 1 and 10 megohms (Mohms).
Before working on equipment that is connected to power lines, remove jewelry (including
Do not work on the system or connect or disconnect cables during periods of
Periodically check the resistance value of the antistatic strap. The measurement should be
Catalyst 5000 Series Route Switch Feature Card Installation and Configuration Note
Basic Electrical Safety Guidelines
7