Cisco Systems 7500 Series manual Cisco 7576 Overview

Chapter 1 Cisco 7500 Series Product Overview

Cisco 7576 Overview

Cisco 7576 Overview

The Cisco 7576 router supports multiprotocol, multimedia routing and bridging with a wide variety of protocols and any combination of available electrical interfaces and media. The Cisco 7576 consists of two independent Cisco 7500 series routers configured on a single split backplane. This system is housed within the chassis footprint of a Cisco 7513 router.

Network interfaces reside on interface processors that provide a direct connection between the two independent dual CyBuses located on the backplane of the Cisco 7576 and your external networks. The two independent dual CyBuses facilitate the configuration of two independent routers on a single backplane. These routers are identified as router A and router B.

The backplane of the Cisco 7576 has 13 slots. Router A uses interface processor slots 0 through 5 with a Route Switch Processor (RSP4/4+ or RSP8) in slot 6. Router B uses interface processor slots 8 through 12 with a Route Switch Processor (RSP4/4+ or RSP8) in slot 7. The Cisco 7576 supports 10 VIPs, one for each interface processor slot; 6 VIPs are supported in Router A and 5 VIPs are supported in Router B.

There are bays for up to two AC-input or DC-input power supplies. The chassis will operate with one power supply. Although a second power supply is not required, it allows load sharing and increased system availability.

Caution Because of agency compliance and safety issues, mixing AC-input and DC-input power supplies in the same Cisco 7576 is not a supported configuration and should not be attempted. Doing so might cause damage.

Note The Cisco 7576 is sold as a new unit and as an upgrade kit to the Cisco 7513. When purchased new, the Cisco 7576 comes standard with two AC-input power supplies and two RSP4/4+s. The

Cisco 7576 upgrade kit includes only the system chassis, which includes the card cage and backplane. The upgrade kit does not include power supplies, RSPs, or interface processors. These parts are exchanged with the parts from the Cisco 7513 unit that is being upgraded. If you purchased a Cisco 7576 upgrade kit, refer to the document Cisco 7513 and Cisco 7576 Chassis Replacement and Upgrade Instructions.

Figure 1-16shows the front view of the Cisco 7576. The three front-panel LEDs indicate system and power supply status, and LEDs on the RSP, interface processors, and power supplies indicate status.

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