Cisco Catalyst 4500 Series Command Reference Manual page 606

power redundancy-mode
Table 2-12
Power Supply
1000 W AC
1300 W AC
1400 W DC
1400 W AC
2800 W AC
1. Chassis power includes power for the supervisor engine(s), all line cards, and the fan tray.
2. The efficiency for the 1400 W DC power supply is 0.75, and 0.96 is applied to PoE.
3. DC input can vary for the 1400 W DC power supply and is configurable.
4. Not available for PoE.
5. Not available for PoE.
6. No voice power.
7. Data-only.
8. Inline power.
Special Considerations for the 4200 W AC, 6000 W AC, and 9000W Power Supplies
The 4200 W AC and 6000 W AC power supply has two inputs: each can be powered at 110 or 220 V.
The 9000 W AC power supply has three inputs: each can be powered at 110 or 220V.
As with other power supplies, the two power supplies must be of the same type (6000 W AC or 4200 W
AC or 9000 W AC). Otherwise, the right power supply is put in err-disable state and the left one is
selected. In addition, all the inputs to the chassis must be at the same voltage. In redundant mode, the
inputs to the left and right power supplies must be identical. If the left and right power supplies are
powered in redundant mode, the power values is based on the power supply with the higher output
wattage.
When the system is powered with a 4200 W, 6000 W, or 9000W power supply either in 110 V or 220 V
Note
combined mode operation, the available power is determined by the configuration of the system (the type
of line cards, the number of line cards, number of ports consuming inline power, etc.) and does not reflect
the absolute maximum power.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
2-548
Available Power for Switch Power Supplies
Redundant Mode (W)
1
Chassis = 1050
PoE = 0
Chassis (max) = 1050
PoE (max) = 800
Chassis + PoE + Backplane <
1300
Chassis (min) = 200
Chassis (max) = 1360
2
PoE (max) = (DC Input
[Chassis (min) + Backplane] /
0.75) * 0.96
Chassis = 1360
6
PoE = 0
Chassis = 1360
PoE = 1400
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
Combined Mode (W)
Chassis = 1667
PoE = 0
Chassis (min) = 767
PoE (max) = 1333
Chassis (max) = 1667
PoE (min) = 533
Chassis + PoE +
Backplane < 2200
4
Chassis = 2267
5
PoE
3
-
Chassis = 2473
PoE = 0
Chassis = 2473
PoE = 2333
Sharing Ratio
2/3
2/3
Chassis—2/3
PoE—0
9/11
7
Chassis —9/11
8
PoE —2/3
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