Cisco 7500 Series Configuration Manual page 45

Chapter 1 Cisco 7500 Series Product Overview
Figure 1-15
0
The Cisco 7513-MX backplane includes connectors for time-division multiplexing (TDM)-compatible
Note
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.
A spare card cage assembly ships as Product Number MAS-7513MX-CDCAGE=. For maintenance
Note
information about the card cage assembly, see the
7513-MX, and Cisco 7576 Card Cage Assembly" section on page
OL-5008-03 B0
Dual CyBus Backplane in the Cisco 7513-MX
1 2 3 4
CyBus 0 (slots 0 through 5)
5 RSP RSP 8 9
CyBus 1 (slots 8 through 12)
"Removing and Replacing the Cisco 7513, Cisco
Cisco 7500 Series Installation and Configuration Guide
Cisco 7513-MX Overview
10 11 12
7-5.
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