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Power Supply Modules
Cable and operating
distance
Power Supply Modules
The Firepower 4100 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, PSU1 and PSU2.
Note
Note
Attention
See
Remove and Replace the Power Supply Module, on page 63
the power supply module.
AC Power Supply
The power supplies can supply up to 1100-W 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 7: AC Power Supply Module Hardware Specifications
Description
Input voltage
Cisco Firepower 4112, 4115, 4125, and 4145 Hardware Installation Guide
22
Core diameter (microns)
G.652
The system power requirements are lower than the power supply module capabilities. See
Specifications, on page 28
for the system power requirements.
After removing power from the chassis either by moving the power switch to OFF or unplugging the power
cord, wait at least 10 seconds before turning power back ON.
Make sure that one power supply module is always active.
Modal bandwidth
(MHz/km)
Single mode
for the procedure for removing and replacing
Specification
100 to 240 V AC
Overview
Cable distance
Half the
Note
distance
specified by
the IEEE
standard.
5 km
Hardware
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