user manual

1-41
Catalyst 4500 Series Switches Installation Guide
78-14409-08
Chapter 1 Product Overview
Power Supplies
Ta b l e 1-11 Minimum Load Table
PSU1 PSU2
Input 1 Input 2 Input 3 Input 1 Input 2 Input 3
12V
Minimum
Load
3.3V
Minimum
Load
Single Operation
Mode 1 ON OFF OFF – – – 1.33A 0.6A
Mode 2 OFF ON OFF – – – 1.33A 0.6A
OFF OFF ON – – – 1.33A 0.6A
Mode 3 ON ON OFF – – – 2.66A 0.6A
ON OFF ON – – – 2.66A 0.6A
Mode 4 OFF ON ON – – – 2.66A 0.6A
Mode 5 ON ON ON – – – 4A 0.6A