Cisco Systems 7500 Series manual Dual CyBus Backplane in the Cisco 7513-MX

Chapter 1 Cisco 7500 Series Product Overview

Cisco 7513-MX Overview

Figure 1-15 Dual CyBus Backplane in the Cisco 7513-MX

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0	1	2	3	4	5	RSP	RSP	8	9	10	11	12

CyBus 0 (slots 0 through 5) CyBus 1 (slots 8 through 12)

Note The Cisco 7513-MX backplane includes connectors for time-division multiplexing (TDM)-compatible hardware. These connectors allow you to connect the Cisco 7513-MX to future TDM hardware as it becomes available. The Cisco 7513-MX also includes the Cisco turbo arbiter. The turbo arbiter, when used in conjunction with other future hardware, significantly increases system bandwidth. When not used with this future hardware, the turbo arbiter operates in standard CyBus mode.

An RSP2, RSP4/4+, or RSP8 in either slot 6 or slot 7 controls both CyBus 0 and CyBus 1. The dual CyBus backplane in the Cisco 7513-MX has an aggregate bandwidth of 2.134 Gbps. Interface processors connected to one CyBus are unaffected by the traffic generated by the interface processors connected to the other CyBus. The two CyBuses are independent of one another.

The backplane slots are keyed so that the processor modules can be installed only in the slots designated for them. Keys on the backplane fit into two key guides on each module. Although the RSP uses unique keys, all eleven interface processor slots use the same key, so you can install an interface processor in any interface processor slot, but not in the RSP slot.

Note A spare card cage assembly ships as Product Number MAS-7513MX-CDCAGE=. For maintenance information about the card cage assembly, see the “Removing and Replacing the Cisco 7513, Cisco 7513-MX, and Cisco 7576 Card Cage Assembly” section on page 7-5.

Cisco 7500 Series Installation and Configuration Guide

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