Cisco FastHub 100 series Installation Manual page 13

rps1 Page 5 Monday, September 14, 1998 8:17 AM
Fully Redundant Configuration
The Cisco RPS can provide a fully redundant power source for two pieces of equipment.
You can use a two-to-one cable to connect two external devices to the four DC output power
modules, as shown in Figure 1-4. The two-to-one cable is a Y-shaped cable with two
connectors at one end and one connector at the other end.
In this configuration, the connectors at one end of the Y-shaped cable connect two
Cisco RPS DC output power modules to one external device. The power source is fully
redundant because there are two AC input modules and two DC output power modules
connected to each external device. If any power module fails, there is a full backup.
Figure 1-4 Fully Redundant Configuration
DC
Cisco RPS
DC output
FastHub 100 series, FastHub 200 series, FastHub 300 series,
Catalyst 1900 series and Catalyst 2820 series switches,
Catalyst 2900 series XL switches,
Cisco 2500, 2600, 3600, and 4000 series routers,
Cisco MC3810 multiservice concentrators
AC
DC
DC
DC
Fully Redundant Configuration
AC input
AC
Overview of the Cisco RPS 1-5