Cisco Catalyst 4000 Руководство - Страница 16

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Cisco Catalyst 4000 Руководство
Cisco RPS Support
DC
Cisco RPS
DC output
Fully Redundant Power
The Cisco RPS can provide a fully redundant power source for up to two Cisco 4000 series
routers. You can use a two-to-one cable to connect up to two external devices to the four
DC output power modules on the rear panel of the Cisco RPS, as shown in Figure 1-6. The
two-to-one cable is a Y-shaped cable with two connectors at one end of the cable and one
connector at the other end. Two connectors at one end of the Y-shaped cable connect to two
DC output power modules. The other end of the cable connects to one external device.
When using two-to-one cables, 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 1-6
1-16 Cisco 4000 Series Installation Guide
DC
DC
External devices
150W or less
Fully Redundant Configuration
AC input
AC
AC
DC