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Safety Guidelines and Warnings
General Electrical Safety Guidelines
Many router components can be removed and replaced without powering down or
disconnecting power to the router, as detailed in "Field-Replaceable Units (FRUs)" on page 3.
Never install equipment if it appears damaged.
AC Power Electrical Safety Guidelines
The following electrical safety guidelines apply to AC-powered routers:
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M5 and M10 Internet Routers Hardware Guide
•
Install the router in compliance with the following local, national, or international
electrical codes:
•
United States—National Fire Protection Association (NFPA 70), United States
National Electrical Code.
•
Canada—Canadian Electrical Code, Part 1, CSA C22.1.
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Other countries—International Electromechanical Commission (IEC) 60364,
Part 1 through Part 7.
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Evaluated to the TN and IT power systems.
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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.
•
Do not work alone if potentially hazardous conditions exist anywhere in your
workspace.
•
Never assume that power is disconnected from a circuit. Always check the circuit
before starting to work.
•
Carefully look for possible hazards in your work area, such as moist floors, ungrounded
power extension cords, and missing safety grounds.
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Operate the router within marked electrical ratings and product usage instructions.
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For the router and peripheral equipment to function safely and correctly, use the cables
and connectors specified for the attached peripheral equipment, and make certain
they are in good condition.
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AC-powered routers are shipped with a three-wire electrical cord with a grounding-type
plug that fits only a grounding-type power outlet. Do not circumvent this safety feature.
Equipment grounding should comply with local and national electrical codes.
•
You must provide an external circuit breaker rated minimum 20 A, 125/250 VAC in the
building installation.
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The power cord serves as the main disconnecting device. The socket outlet must be
near the router and be easily accessible.
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The cores in the mains lead are colored in accordance with the following code:
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Troubleshooting
