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Regulatory Compliance and Safety Information for the Cisco IP/TV 3400 Series Servers
78-11120-01
Safety Recommendations
Maintaining Safety with Electricity
Follow these guidelines when working on equipment powered by electricity:
• Locate the emergency power-off switch for the room in which you are working. Then, if an electrical
accident occurs, you can act quickly to turn off the power.
• Disconnect all power by turning off the power and unplugging the power cord before:
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Installing or removing a chassis
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Working near power supplies
• Do not work alone if potentially hazardous conditions exist.
• Never assume that power is disconnected from a circuit; always check the circuit.
• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, frayed power cords, and missing safety grounds.
• If an electrical accident occurs, proceed as follows:
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Use caution; do not become a victim yourself.
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Turn off power to the system.
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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.
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Determine if the person needs rescue breathing or external cardiac compressions; then take
appropriate action.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs
when electronic components are improperly handled and can result in complete or intermittent failures.
• Always follow ESD-prevention procedures when removing and replacing components. Ensure that
the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring
that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis
frame to safely ground ESD voltages. To properly guard against ESD damage and shocks, the wrist
strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching
the metal part of the chassis.
• For safety, periodically check the resistance value of the antistatic strap, which should be between
1 and 10 megohms (Mohms).
