Juniper SRX550, Hardware Manual

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Do not work alone if potentially hazardous conditions exist anywhere in your workspace.
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Never assume that power is disconnected from a circuit. Always check the circuit before starting to
work.
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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 services gateway within marked electrical ratings and product usage instructions.
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For the services gateway 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.
RELATED DOCUMENTATION
In Case of Electrical Accident
AC Power Electrical Safety Guidelines
AC Power Electrical Safety Guidelines
The following electrical safety guidelines apply to AC-powered devices:
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Note the following warnings printed on the device:
“CAUTION: THIS UNIT HAS MORE THAN ONE POWER SUPPLY CORD. DISCONNECT ALL POWER
SUPPLY CORDS BEFORE SERVICING TO AVOID ELECTRIC SHOCK.”
“ATTENTION: CET APPAREIL COMPORTE PLUS D'UN CORDON D'ALIMENTATION. AFIN DE
PRÉVENIR LES CHOCS ÉLECTRIQUES, DÉBRANCHER TOUT CORDON D'ALIMENTATION AVANT
DE FAIRE LE DÉPANNAGE.”
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AC-powered devices 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 must
comply with local and national electrical codes.
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You must provide an external certified circuit breaker (2-pole circuit breaker or 4-pole circuit breaker
based on your device) rated minimum 20 A in the building installation.
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