Table of Contents
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Chapter 1
Product Overview
Table 1-11
Mode 5
Dual Redundant Operation
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
System Architecture
This section describes the interaction between the various system components of Catalyst 4500 E-series
switches. Only the Catalyst 4503-E switch is shown in the examples.
OL-13972-01
Minimum Load Table (continued)
PSU1
Input 1
Input 2
Input 3
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
PSU2
Input 1
Input 2
Input 3
–
–
–
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
Catalyst 4500 E-Series Switches Installation Guide
System Architecture
12V
3.3V
Minimum
Minimum
Load
Load
4A
0.6A
2.66A
1.2A
2.66A
1.2A
2.66A
1.2A
5.32A
1.2A
5.32A
1.2A
5.32A
1.2A
8A
1.2A
1-31
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Troubleshooting
