this section provides module power requirements and heat dissipation specifications for the catalyst 4500 series switches. you should verify site power before you install the switch.

    for more information about power management and planning, refer to the “environmental monitoring and power management” chapter in the catalyst 4500 series switch cisco ios software configuration guide version appropriate for your software.

    knowing the power requirements is useful for planning the power distribution system needed to support the switches. you should consider the heat dissipation specifications when estimating the air-conditioning requirements for an installation. for all catalyst 4500 series switches, supervisor engines, and switching modules in ac or dc environments see the catalyst 4500 series module installation guide at:

    http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/hw_doc/mod_inst/0aspecs.htm#wp1012188.