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Power Supplies
The NetScreen-5000 Series can use AC or DC power supplies. The slots for these
power supplies are located in the back of the NetScreen-5200 and on the front of
the NetScreen-5400.
You can order a NetScreen-5000 Series that runs on DC power. For DC-powered
NOTE:
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 device 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 ScreenOS CLI. The Alarm LED on the management module
glows red in response to any power supply failure.
WARNING:
otherwise, system damage can occur. See "Servicing the Device" on page 45 for
instructions on how to replace a power supply.
NetScreen-5200 Power Recommendations
Although the NetScreen-5200 can run with one power supply, it is advisable to
install both. This practice minimizes the likelihood of system failure due to
individual power supply failure.
When either power supply fails, the Alarm LED on the management module glows
red. If both are operational, then the Alarm LED is off. For more information on
power supply LEDs, see "Port Descriptions and LED Status" on page 61.
NetScreen-5400 Power Recommendations
When the NetScreen-5400 contains only two modules, it can operate with one
power supply. However, if the system contains three or four modules, the system
requires at least two power supplies. In either case, it is advisable to install all three
power supplies. This practice minimizes the likelihood of system failure caused by
individual power supply failure.
When any power supply fails, the Alarm LED on the management module glows
red. While all three are operational, the Alarm LED is off. For more information on
power supply LEDs, see "Port Descriptions and LED Status" on page 61.
DC Power Supply
The DC power supply weighs about three pounds. The faceplate contains a power
LED, a power switch, a cooling fan vent, and three DC power terminal blocks that
connect to power cables.
You must replace the failed power supply as soon as possible;
Overview
11
Power Supplies
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