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Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Chapter 7 Installing the IPS 4510 and IPS 4520
Removing and Installing the Power Supply Module
Removing and Installing the Power Supply Module
The IPS 4510 ships with one power supply module and one fan module installed, and the IPS 4520 ships
with two power supply modules installed in a load balancing/sharing configuration. This configuration
ensures that if one power supply module fails, the other power supply module assumes the full load until
the failed power supply module is replaced. To maintain airflow, both bays must be populated by either
a power supply module and a fan module or two power supply modules.
You can replace the fan module with a second power supply module in the IPS 4520 to create a redundant
power supply module configuration. If you already have two power supply modules installed, you can
install or replace either power supply module without powering off the sensor, as long as one power
supply module is active and functioning correctly.
If only one power supply module is installed, do not remove the power supply module unless the sensor
has been powered off. Removing the only operational power supply module causes an immediate power
loss.
Caution If you remove a power supply or fan module, replace it immediately to prevent disruption of service.
Caution If the appliance is subjected to environmental overheating, it shuts down and you must manually power
cycle it to turn it on again.
To remove and install the power supply module, follow these steps:
Step 1 If you are removing the only power supply module, power off the sensor.
Step 2 From the back panel of the sensor, unplug the power supply module cable.
Step 3 On the back of the sensor, loosen the captive screws from the power supply module.
Step 4 Remove the power supply module by grasping the handle and pulling the power supply module away
from the chassis.
1 Power supply module and power
supply module handle
2 Power supply module screws
Cisco-ASA-FAN
Cisco ASA 1200W AC
100-240V
15.0/8.0.A
56/60Hz
IN
OK
FAN
OK
OUT
FAIL
Cisco ASA 1200W AC
100-240V
15.0/8.0.A
56/60Hz
IN
OK
FAN
OK
OUT
FAI L
253970
2
1
2