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DATA SHEET
CISCO SYSTEMS REDUNDANT POWER SYSTEM 675
The Cisco Redundant Power System 675 (RPS 675) is designed to increase availability in a converged data, voice, and video network. The system
delivers superior internal power supply redundancy and resiliency at an affordable price.
The Cisco RPS 675 supports internal power supply redundancy for one of six Cisco networking devices and provides customers with an immediate
failover capability. The Cisco RPS 675 incorporates a quick failover feature, ensuring customers that the connected device will not reboot in the
event of an internal power supply failure. For example, if an internal power supply fails on one of the six connected devices, the Cisco RPS 675
automatically senses the failure and delivers uninterrupted power to that device.
When a failure is detected, the Cisco RPS 675 sends status information showing that the other connected devices will not be supported until the
failed device is restored or replaced. This status information can be monitored through CiscoWorks 2000 and the Cisco Cluster Management Suite
(CMS) Software that provides Web-based network management. In addition, the Catalyst 3750, 3560, 3550, 2970, and 2950 Series switches send a
trap in the event of an internal power supply failure and the Cisco RPS 675 backing up the failed switch. To achieve one-to-one redundancy, each
device must be connected to a separate Cisco RPS 675.
The Cisco RPS 675 can be combined with the Cisco Catalyst
®
3750 and 3560 inline power switches and uninterruptible power supply (UPS) systems
to establish all of the elements of the Cisco Centralized Power Provisioning System. This combination provides a resilient, highly available
converged network, offering 1) internal redundant power to the switch; 2) power to the IP phone via the switch’s inline power feature (rather than
wall power); and 3) back-up in the event of a power outage.
Figure 1. The Cisco RPS 675 Supports Redundant Power for One of Six Cisco Networking Devices in a Convenient Single Rack-Unit
(1RU) Form Factor
The Cisco RPS 675 will support future Cisco switches. Please refer to the 600-Watt Redundant AC Power System data sheet and the Cisco Systems
Redundant Power Supply 300 data sheet for non-RPS 675 supported devices.
PRODUCT APPLICATIONS
The Cisco RPS 675 can be deployed in a variety of situations to ensure network resiliency for mission-critical customer applications. Figure 2
illustrates the need for a more resilient network that provides maximum availability: a converged voice and data network includes switches connected
to IP phones and PCs. In the rare event of a switch internal power supply failure, the Cisco RPS 675 ensures seamless voice/data network operation
without interruption. In this scenario, multiple switches with inline power are supported by the Cisco RPS 675. The switches are connected to PCs
and are used to power IP phones.