Cisco Systems 4500 Supported Power Supplies

10-7
Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 10 Environmental Monitoring and Power Management Power Management
Supported Power Supplies
You can select from several different power supplies to ensure that you have enough power for the
modules installed in your switch.
Note You should select a power supply based on the modules and the amount of PoE desired using the Cisco
Power Calculator:
http://tools.cisco.com/cpc/
The choice between 1000 AC and 1400 AC should depend on the type of line cards that the customer
plans to use in the chassis.
The Catalyst 4500 series switches support the following power supplies:
• Fixed Wattage—These power supplies always deliver a fixed amount of PoE and system power.
– 1000 W AC—Supports up to 1050 W of system power. (Not recommended on the Catalyst
4510R switch, PoE not supported)
– 1400 W AC—Supports up to 1400 W system power. (PoE not supported)
– 2800 W AC—Supports up to 1400 W of system power and up to 1400 W of PoE.
• Variable Wattage—These power supplies automatically adjust the wattage to accommodate PoE and
system power requirements.
– 1300 W AC—Supports up to 1050 W of system power and 800 W of PoE, limited to a total of
1300 W.
– 1400 W DC—Supports up to 1400 W of system power and variable amounts of PoE, depending
on the input feed to the power supply. See “Special Considerations for the 1400 W DC Power
Supply” section on page 10-18 for more information.
– 1400 W DC Service Provider—Uses up to three lines (12.5 A, 15 A, 15 A) of DC input and
delivers varying amounts of system power ranging from 400 W to 1400 W depending on the
lines powered. See “Special Considerations for the 1400 W DC SP Triple Input Power Supply”
section on page 10-19 for more information. (PoE not supported)
– 4200 W AC and 6000 W AC—Supports varying amounts of system power and PoE depending
on the number of inputs powered and input voltage.
Note All Catalyst 4500 series switch AC-input power supplies require single-phase source AC. The source AC
can be out of phase between multiple power supplies or multiple AC-power plugs on the same power
supply because all AC power supply inputs are isolated. Each chassis power supply should ideally have
its own dedicated branch circuit sized to local and national codes.
When you insert power supplies in your switch, use power supplies that are of the same wattage.
Multi-input power supplies such as 1400 W DC triple-input, 4200 W AC, and 6000 W AC have
additional restrictions. Read the sections on special considerations for these power supplies. If you mix
power supplies, the switch uses the one with the higher wattage and ignores the other power supply. The
power supply status displays as err-disable and the summary displays as all zeros (0) for wattage values
in the output for the show power command.