Справочник Пользователя для Juniper CBL-M40-PWR-AU
Regulatory Compliance and Safety Information
Safety Guidelines and Warnings
61
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 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.
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 4.
Never install equipment if it appears damaged.
disconnecting power to the router, as detailed in “Field-Replaceable Units (FRUs)” on page 4.
Never install 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.
Equipment grounding should comply with local and national electrical codes.
You must provide an external circuit breaker rated minimum 20 A, 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:
Green and yellow—Earth
Blue—Neutral
Brown—Live
When a router is equipped with two AC power supplies, both power cords (one for each
power supply) must be unplugged to completely disconnect power to the router.
DC Power Electrical Safety Guidelines
The following electrical safety guidelines apply to DC-powered routers:
DC-powered routers are equipped with a DC terminal block that is rated for the power
requirements of a maximally configured router. To supply sufficient power, terminate
the DC input wiring on a facility DC source capable of supplying at least 45 A @ 48 VDC.
The 48 VDC facility DC source should be equipped with a circuit breaker rated at 45 A
minimum. Incorporate an easily accessible disconnect device into the facility wiring. Be
sure to connect the ground wire or conduit to a solid office (earth) ground. A closed loop
ring is recommended for terminating the ground conductor at the ground stud.
the DC input wiring on a facility DC source capable of supplying at least 45 A @ 48 VDC.
The 48 VDC facility DC source should be equipped with a circuit breaker rated at 45 A
minimum. Incorporate an easily accessible disconnect device into the facility wiring. Be
sure to connect the ground wire or conduit to a solid office (earth) ground. A closed loop
ring is recommended for terminating the ground conductor at the ground stud.
Run two wires from the circuit breaker box to a source of 48 VDC. Use appropriate
gauge wire to handle up to 45 A.