Cisco 3110 Hardware Installation Manual page 29

Overview
AC Power Supply
The dual power supplies can supply up to 800-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.
Note The system does not consume more than the capacity of one power supply module, so it always operate in
full redundancy mode when two power supply modules are installed.
Table 2: AC Power Supply Module Hardware Specifications
Input voltage
Maximum input
current
Maximum output
power
Frequency
Efficiency
Redundancy
DC Power Supply
The power supplies can supply up to 800 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.
Note The system does not consume more than the capacity of one power supply module, so it always operate in
full redundancy mode when two power supply modules are installed.
Table 3: DC Power Supply Module Hardware Specifications
Input voltage
Maximum input
current
Redundancy
Efficiency
3110 3120
100 to 240 VAC
<3 A at 200 VAC
<6 A at 100 VAC
400 W
50 to 60 Hz
85% at 50% load
1+1 redundancy with dual power supply modules
3110 3120
-48 to -60 VDC
< 15 A at -48 V
1+1 redundancy with dual power supply modules
> 88% at 50% load
Cisco Secure Firewall 3110, 3120, 3130, and 3140 Hardware Installation Guide
Power Supply Module
3130 3140
3130 3140
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