Cisco Cisco IPS 4255 Sensor Guida All'Installazione
11
Removing and Installing Interface Cards in Cisco IPS-4260 and IPS 4270-20
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Installing Interface Cards in IPS 4270-20
Installing Interface Cards in IPS 4270-20
This section describes how to install interface cards in IPS 4270-20, and contains the following topics:
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Removing and Replacing the Chassis Cover
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than 120 VAC, 20 A U.S. (240 VAC, 16-20 A International).
Statement 1005
the protective device is rated not greater than 120 VAC, 20 A U.S. (240 VAC, 16-20 A International).
Statement 1005
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement
1029
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place. Statement
1029
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028
de-energize the unit. Statement 1028
Note
Removing the appliance chassis cover does not affect your Cisco warranty. Upgrading IPS 4270-20 does
not require any special tools and does not create any radio frequency leaks.
not require any special tools and does not create any radio frequency leaks.
Caution
Do not operate 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.
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 IPS 4270-20 to be powered off:
sensor# reset powerdown
Wait for the power down message before continuing with Step 3.