Cisco FastHub 100 series Installation Manual page 12

rps1 Page 4 Monday, September 14, 1998 8:17 AM
Quasi-Redundant Configuration
Quasi-Redundant Configuration
The Cisco RPS provides a quasi-redundant power source for four external devices that use
up to 150W DC each. 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 1-3.
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.
Figure 1-3 Quasi-Redundant Configuration
DC
Cisco RPS
DC output
1-4 Cisco Redundant Power System Hardware Installation Guide
AC
DC
DC
External devices
150W or less
AC input
AC
DC