Cisco Line Card 4500 E-Series User Manual

A-22
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Appendix A Power Supply Specifications
1400 W Triple-Input DC-Input Power Supply
1400 W DC Triple-Input Power Supply Operational Modes
The 1400 W triple-input DC-input power supply (data only) allows added redundancy by providing
terminals for two DC inputs rated at 15
A and one rated at 12.5 A per power supply.
This power supply has five operational modes depending on the inputs receiving power. When all three
inputs are active, at input voltages greater than –44.0
V DC, the power supply delivers 1400 W
maximum total output.
Table A-17 provides output information for these modes, given a single supply.
The maximum total input current is 42.5 A and the maximum ambient temperature is 55 C. To determine
the total maximum input power to a supply, add up the active individual module input power ratings.
Table A-18 provides output information for these modes, given two supplies working in combined mode.
Table A-19 provides output information for these modes, given two supplies working in redundant mode.
Ta b l e A-17 Input Modes
Input
Mode
Input
Number
Input Configuration Maximum Total Output
Power
1 1 1 x 12.5 A 386 W @ –40.5 VDC
412 W @ –44.0 VDC
2 2 OR 3 1 x 15 A 466 W @ –40.5 VDC
495 W @ –44.0 VDC
3 1, 2 OR 3 1 x 12.5 A and
1 x 15 A
845 W @ –40.5 VDC
908 W @ –44.0 VDC
4 2, 3 2 x 15A 914 W @ –40.5 VDC
990 W @ –44.0 V DC
5 1, 2, 3 1 x 12.5A and
2 x 15 A
1294 W @ –40.5 VDC
1400 W @ –44.0 VDC
Ta b l e A-18 Combined Mode Power Supply Configuration
(2450 W Max Output Power)
Input
Number
Maximum Input Current Maximum Input
Power @ –44 VDC
1 12.5 A @ –44 VDC 550 W
2 15 A @ –44 VDC 660 W
3 15 A @ –44 VDC 660 W

Cisco Line Card 4500 E-Series Specifications

General

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