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NetScreen-5000 Series Hardware Installation and Configuration Guide
Replacing an AC Power Supply
Replacing the Fan Module
48
Replacing an AC Power Supply
To replace an AC power supply:
1. Turn off the power supply.
2. Lift the AC power cord retainer clip.
3. Unplug the cord from the power supply.
4. Turn the thumbscrew counterclockwise to release the power supply.
5. Lift and grip the lever, and then gently pull the power supply straight out.
6. Insert the new power supply into the bay.
7. Secure the power supply in place by tightening the thumbscrew clockwise.
8. Lift the retainer clip, and then plug the power cord into the power supply.
9. Press the retainer clip over the cord, securing it in place.
The front panel of each device includes an air vent for cooling purposes. The
NetScreen-5000 Series fan modules differ according to the device model:
The NetScreen-5200 fan module has three fans.
The NetScreen-5400 fan module has two fans.
When a fan or fan module fails, the Fan LED glows red, and the system generates
an event alarm and a SNMP trap. Although a NetScreen-5000 Series system can
operate with a fan out of service, it is advisable to replace the fan module as soon as
possible.
When you remove the fan module, you must reinstall it (or replace it) within two
minutes, or system failure can occur.
If the temperature alarm continues to display, we recommend inspecting the fan
filter. To remove a filter cover and replace a filter, use the procedures described in
this section.
If the device becomes too hot, then the system shuts down
WARNING:
automatically.
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