Power Supplies - Juniper NETSCREEN-5000 Serie Manuel D'utilisation

P S
OWER UPPLIES
The NetScreen-5000 Series can use two kinds of power supplies:
• Alternating Current (AC) Power Supply
• Direct Current (DC) Power Supply
The slots for these power supplies are located in the back of the NetScreen-5200 and on
the front of the NetScreen-5400.
Note: You can order a NetScreen-5000 Series that runs on DC power. For DC-powered
units, the power supply has a DC terminal block with three sockets.
When two or more power supplies are in service, they share the power load equally. The
power supplies are hot-swappable, so you can remove one and replace it without affecting
operation. Each power supply is intended to receive power from separate feeds.
When one power supply fails, the other(s) automatically assume the full load and the
device logs a system alarm. This alarm is viewable through the WebUI or a console
accessing the NetScreen Command Line Interface (CLI). The Alarm LED on the
management module glows red in response to any power supply failure.
Warning: You must replace the failed power supply as soon as possible; otherwise, system
damage may result. See
replace a power supply.
NetScreen-5000 Series
"Servicing the Device" on page 35

Power Supplies

for instructions on how to
5