Cisco Systems 4500 manual 12V 50V Total, @ 12 @3.3 @ -50 Maximum W

Appendix A Specifications

Catalyst 4500 Series Power Supplies

Table A-14shows the wattage output possible with the 4200W power supply in redundant mode. In redundant mode, both power supplies must have identical inputs and all inputs must be at the same voltage. If the input voltages are mismatched, choose the value matching the weaker of the two power supplies.

Table A-14	Redundant Mode Output
		12V	3.3V	-50V	Total
110		660	40	700	1050
110+110 or 220		1360	40	1850	2100
220+220		1360	40	3700	4200

Table A-15shows the maximum output wattage with the 4200 W power supply in combined mode.

Table A-15	Combined Mode Output
		W @ 12 V	W @3.3 V	W @ -50 V	Maximum (W)
Both sides at 110		1200	40	1320	1870
110+110, other side 110		1800	40	2000	2730
Both sides at 110+110		2200	40	3100	3800
Both sides at 220		2200	40	3100	3800
220+220, other side 220		2200	40	4700	5500
Both sides at 220+220		2200	40	6200	7600

	Catalyst 4500 Series Switches Installation Guide
A-20	78-14409-08