Cisco IPS 7.1 Installation Guide Page 88

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Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1
OL-24002-01
Chapter 3 Installing the IPS 4270-20
Removing and Replacing the Chassis Cover
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028
Note Removing the appliance chassis cover does not affect your Cisco warranty. Upgrading the IPS 4270-20
does not require any special tools and does not create any radio frequency leaks.
Caution Do not operate the IPS 4270-20 for long periods with the chassis cover open or removed. Operating it in
this manner results in improper airflow and improper cooling that can lead to thermal damage.
To remove and replace the chassis cover, follow these steps:
Step 1 Log in to the CLI.
Step 2 Prepare the IPS 4270-20 to be powered off. Wait for the power down message before continuing with
Step 3.
sensor# reset powerdown
Note You can also power off the IPS 4270-20 using the IDM or the IME.
Step 3 Power off the IPS 4270-20.
Step 4 Remove both power cables from the IPS 4270-20.
Step 5 Extend the IPS 4270-20 out of the rack if it is rack-mounted.
Step 6 Make sure the IPS 4270-20 is in an ESD-controlled environment.
Step 7 If the locking latch is locked, use the T-15 Torx screwdriver located on the back of the chassis to unlock
it. Turn the locking screw a quarter of a turn counterclockwise to unlock it.
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