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Install the EX Series switch in compliance with the following local, national, and
international electrical codes:
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United States—National Fire Protection Association (NFPA70), United States
National Electrical Code.
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Other countries—International Electromechanical Commission (IEC) 60364, Part 1
through Part 7.
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Evaluated to the TN power system.
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Canada—Canadian Electrical Code, Part 1, CSA C22.1.
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Locate the emergency power-off switch for the room in which you are working so that
if an electrical accident occurs, you can quickly turn off the power.
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Make sure that grounding surfaces are cleaned and brought to a bright finish before
grounding connections are made.
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Donotworkaloneifpotentiallyhazardousconditionsexistanywhereinyourworkspace.
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Neverassumethatpowerisdisconnectedfromacircuit.Alwayscheckthecircuitbefore
starting to work.
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Carefullylookfor possible hazardsin your workarea,such asmoist floors,ungrounded
power extension cords, and missing safety grounds.
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Operate the EX Series switch within marked electrical ratings and product usage
instructions.
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To ensure that the EX Series switch and peripheral equipment function safely and
correctly, use the cables and connectors specified for the attached peripheral
equipment, and make certain they are in good condition.
You can remove and replace many switch components without powering off or
disconnectingpowertotheswitch,asdetailedelsewhereinthehardwaredocumentation
for this product. Never install equipment if it appears damaged.
Related Topics General Safety Guidelines and Warnings for EX Series Switches on page 207•
• AC Power Electrical Safety Guidelines for EX Series Switches on page 238
• DC Power Electrical Safety Guidelines for EX Series Switches on page 240
Prevention of Electrostatic Discharge Damage on EX Series Switches
Switch components that are shipped in antistatic bags are sensitive to damage from
static electricity. Some components can be impaired by voltages as low as 30 V.You
can easily generate potentially damaging static voltages whenever you handle plastic
or foam packing material or if you move components across plastic or carpets. Observe
the following guidelines to minimize the potential for electrostatic discharge (ESD)
damage, which can cause intermittent or complete component failures:
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CompleteHardwareGuide forEX3200 andEX4200 EthernetSwitches