CHAPTER
1-1
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-01
1
Product Overview
This chapter provides an overview of the features and components of the Catalyst 4500 E-series
switches. The Catalyst
4500 E-series switches are the Catalyst 4503-E switch, the Catalyst 4506-E
switch, the Catalyst
4507R-E switch, and the Catalyst 4510R-E switch. The information is presented in
these major sections:
• Switch Features, page 1-1
• Supervisor Engines, page 1-16
• Fan Assembly, page 1-24
• Power Supplies, page 1-25
• System Architecture, page 1-31
Switch Features
The following sections describe the features of the Catalyst 4500 E-series switches:
• Power Redundancy, page 1-1
• Catalyst 4503-E Switch Features, page 1-2
• Catalyst 4506-E Switch Features, page 1-5
• Supervisor Engine Redundancy, page 1-8
• Catalyst 4507R-E Switch Features, page 1-9
• Catalyst 4510R-E Switch Features, page 1-13
Power Redundancy
All Catalyst 4500-E switches offer 1+1 power redundancy, so that in the event of a power interruption
the switch can still operate using power from another circuit. The power supplies can also run in a
combined mode so that chassis can have power from both supplies at once. You will need to use the
power redundancy-mode command to configure combined mode. Redundant mode is the default.
Catalyst 4500-E switches support power supply redundancy only between power supplies of equal
wattage and type. A mix of power supplies is not supported. The second power supply recognized is
placed into err-disable mode.
