- Juniper Router Hardware Guide
Safety Guidelin e
sandWarnings
General Electrical Safet y Guidelines
• Install the ro
uter in compliance with the following local, national, or international
electrical codes:
• United States
—National Fire Protection A ssociation (NFPA 70), United States
National Electrical Code.
• Canada—Canad
ian Electrical Code, Part 1, CSA C22.1.
• Other c ountries—International Electromechanical Commission (IEC) 60364,
Part 1 through
Part 7.
• Evaluated to the TN and IT power systems.
• 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.
• Operate the router within marked electrical ratings and product usage instructions.
• For the rout
er and peripheral equipment to function safely and c orrectly, use the c ables
and connectors specified for the attached peripheral equipment, and make certain
they are in good condition .
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 insta
ll equipment if it appears damaged.
AC Power Electrical Safety Guidelines
The following electrical safety guidelines apply to AC-powered routers:
• 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.
• The power cord serves as the main disconnecting device. The socket outlet must be
near the router and be easily accessible.
• The cores in the mains lead are colored in accordance with the following code:
136 M5 and M10 Internet Routers Hardware Guide