Cisco Systems 4500 manual Two modules minimum required @ -40.5 VDC input

Appendix A Specifications

Catalyst 4500 Series Power Supplies

Table A-9 1400 W DC Triple-Input Power Supply Specifications (continued)

Item	Specification
Catalyst 4503-Specific Power Usage	Two modules minimum required @ –40.5 VDC input
(data only)	One 15A module minimum required @ –44 VDC input
Maximum draw	475 W
Maximum input	609 W total / # of modules = W per module
Current draw at –40.5 V (min voltage)	15 A total / # of modules = A per module
Current draw at –72 V (max voltage)	8.5 A total / # of modules = A per module
Max heat dissipation at 609 W	2078	BTUs
Catalyst 4506-Specific Power Usage	Two modules minimum required @ –44 VDC input
(data only)	Three modules minimum required @ –40.5 VDC input
Maximum draw (data only)	850 W
Maximum input	1076	W total / # of modules = W per module
Current draw at –40.5 V (min voltage)	26.6 A total / # of modules = A per module
Current draw at –72 V (max voltage)	15 A total / # of modules = A per module
Max heat dissipation at 1076 W	3671	BTUs
Catalyst 4507R-Specific Power Usage	Three modules minimum required
(data only)
Maximum draw (data only)	1080	W
Max input is 1080 W	1367	W total / # of modules = W per module
Current draw at –40.5 V (min voltage)	33.75 A total / # of modules = A per module
Current draw at –72 V (max voltage)	19 A total / # of modules = A per module
Max heat dissipation 1367 W	4665	BTUs

	Catalyst 4500 Series Switches Installation Guide
A-16	78-14409-08