Chapter 1 Overview
Supported Devices and Configurations
1-4
Cisco Redundant Power System Hardware Installation Guide
OL-3654-01
Quasi-Redundant Configuration
The Cisco RPS provides a quasi-redundant power source for four external devices
that use up to 150W DC each. This configuration is allowed for all supported
devices. You can use a one-to-one cable (one connector at each cable end) to
connect four external devices to the four DC output power modules, as shown in
Figure 1-1
. The power source is quasi-redundant because there are two AC input
power modules for the Cisco RPS and one DC output power module for each
external device. The AC input to the Cisco RPS is fully redundant, but the DC
output to the external devices is not.
Note
This is the only recommended configuration for Cisco switches and hubs.
Figure 1-1
Quasi-Redundant Configuration
External devices
150W or less
DC output
AC input
DC
DC
AC
AC
DC
DC
Cisco RPS
NM3998
