Power Supply Modules
The Firepower 4100 security appliance supports two AC or DC power supply modules so that dual power
supply redundancy protection is available. Facing the back of the chassis, the power supply modules are
numbered left to right, for example, PSU-1 and PSU-2.
The system power requirements are lower than the power supply module capabilities. See
Hardware
Specifications, on page 34
for the system power requirements.
Note
Make sure that one power supply module is always active.
Attention
See
Remove and Replace the Power Supply Module, on page 65
for the procedure for removing and replacing
the power supply module.
AC Power Supply
The power supplies can supply up to 1100W power across the input voltage range. The load is shared when
both power supply modules are plugged in and running at the same time. The power supply modules are
hot-swappable.
Table 4: AC Power Supply Module Hardware Specifications
100 to 240V AC
Input voltage
13A (at 100V AC)
The power supply module is rated at 13A
but the system power is limited to 10A. See
Hardware Specifications, on page 34
for
more system specifications.
Note
Maximum current
1100W
Maximum output power
50 to 60Hz
Frequency
1+1 redundant
Redundancy
92%
Efficiency at 50% load
DC Power Supply
The power supplies can supply up to 950W power across the input voltage range. The load is shared when
both power supply modules are plugged in and running at the same time. The power supply modules are
hot-swappable.
Cisco Firepower 4100 Series Hardware Installation Guide
18
Overview
Power Supply Modules
