Cisco Line Card 4500 E-Series User Manual

A-23
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Appendix A Power Supply Specifications
1400 W Triple-Input DC-Input Power Supply
Note In a redundant configuration with all inputs supplied, there must be a 100 W minimum system load or
the OUTPUT FAIL LED shows a false failure.
The 1400 W triple-input DC-input power supply requires a minimum draw from the system that it is
installed in.
Table A-20 shows the minimum draw for the possible modes.
Ta b l e A-19 Dual Redundant Mode Power Supply Configuration
(1400 W Max Output Power)
Input
Number
Approximate
Input Current
Approximate Input
Power @ –40.5 VDC
Approximate Input
Power @ –44 VDC
1 6.25 A @
–40.5 / –44 VDC
253 W 275 W
2 7.5 A @ –40.5 /
–44 VDC
304 W 330 W
3 7.5 A @ –40.5 /
–44 VDC
304 W 330 W
Ta b l e A-20 Minimum Load Table
PSU1 PSU2
Input 1 Input 2 Input 3 Input 1 Input 2 Input 3 12 VDC
Minimum
Load
3.3 VDC
Minimum
Load
Single Operation
Mode 1 ON OFF OFF — — — 1.33 A 0.6 A
Mode 2 OFF ON OFF — — — 1.33 A 0.6 A
OFF OFF ON — — — 1.33 A 0.6 A
Mode 3 ON ON OFF — — — 2.66 A 0.6 A
ON OFF ON — — — 2.66 A 0.6 A
Mode 4 OFF ON ON — — — 2.66 A 0.6 A
Mode 5 ON ON ON — — — 4 A 0.6 A
Dual Redundant Operation
Mode 1 ON OFF OFF ON OFF OFF 2.66 A 1.2 A
Mode 2 OFF ON OFF OFF ON OFF 2.66 A 1.2 A
OFF OFF ON OFF OFF ON 2.66 A 1.2 A
Mode 3 ON ON OFF ON ON OFF 5.32 A 1.2 A
ON OFF ON ON OFF ON 5.32 A 1.2 A
Mode 4 OFF ON ON OFF ON ON 5.32 A 1.2 A
Mode 5 ON ON ON ON ON ON 8 A 1.2 A

Cisco Line Card 4500 E-Series Specifications

General

Brand	Cisco
Model	Line Card 4500 E-Series
Category	Switch
Language	English