Datasheet

A-67
Catalyst 6500 Series Switches Installation Guide
OL-5781-05
Appendix A Power Supply Specifications
Power Supply Redundancy
Figure A-48 WS-CAC-4000W-US=
Power Supply Redundancy
Catalyst 6500 series switching modules have different power requirements. Depending upon the wattage
of the power supply, certain switch configurations might require more power than a single power supply
can provide. Although the power management feature allows you to supply power to all installed
modules with two power supplies, redundancy is not supported in this configuration. Redundant and
nonredundant power configurations are summarized in Table A-25. The effects of changing the power
supply configurations are summarized in Table A-26.
Note For proper load-sharing operation in a redundant power supply configuration, you must install two
modules in the chassis. If you fail to install two modules, you might receive spurious OUTPUT FAIL
indications on the power supply.
Cordset rating: 30 A, 250 V
Length: 12 ft 0 in. (3.65 m)
Plug: NEMA L6-30
Hardwired to
power
supply
113366
Table A-25 Power Supply Redundancy
If you have two
power supplies of and redundancy is Then
Equal wattage Enabled The total power drawn from both supplies is never greater than the
capability of one supply. If one supply malfunctions, the other supply
can take over the entire system load. Each power supply provides
approximately half of the required power to the system. Load sharing
and redundancy are enabled automatically; no software configuration is
required.