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Appendix A Specifications
Catalyst 4500 Series Power Supplies
A-12
Catalyst 4500 Series Switches Installation Guide
78-14409-08
Caution Do not mix the 1400 W DC power supply with any other power supply, even for
a hot swap or other short-term emergency. Doing so can seriously damage your
switch.
The 1400W DC Input power supply may be used with the Catalyst 4500 Series
AC Power Shelf. Documentation for the Catalyst 4500 Series AC Power Shelf is
at:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/hardware/configur
ation/notes/78_15068.html
Power supply output 2473 W maximum
1360 W+ 40 W redundant mode (Data)
Power supply output (AC supply) 12 V @ 113.4 A, 3.3 V @ 12.2 A (Data)
Max heat dissipation 1048 BTUs/hr
Output holdup time 20 ms minimum
1. A Catalyst 4503 with a Catalyst 4500 series Supervisor Engine II-Plus TS and a 1400W AC power supply provides 158.4 W of
PoE to ports on the supervisor engine. Switching modules in other slots will not be able to provide PoE.
Table A-7 1400 W AC-Input Power Supply Specifications (continued)
Item Specification
Ta b l e A-8 1400 W DC-Input Power Supply Specifications
Item Specification
Minimum software requirement Cisco IOS Release 12.1(19)EW
Catalyst Operating System software version 7.5 (1)
Power over Ethernet Supported, up to 7500 W minus power consumed for data
(240 Cisco phones in combined mode)
DC-input voltage Data only: –48 to –60 VDC
Inline devices: –48 to –56 VDC