Using the Model 5625HD EtherSpeed Switch Module
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The Model 5005BH ATM/Router Backplane (see Figure3-2) has a single
Centillion ATM bus and PPX® bus. The Centillion ATM bus spans slots 2 through
7 in the Model 5005BH chassis. When you install a System 5000 Model 5625HD
switch module in one of these slot ranges, you must also install an MCP switch
module (such as the Model 5720M ATM Speed MCP module) in t he same r ange of
slots. You can attach up to six S ystem 5000 switc h module s (one of which m ust be
an MCP module) in a Model 5005BH chassis.
The PPX bus spans slots 2 through 7. A router module may be installed in any of
these slots. Router modules for the Model 5000BH ATM/Router Backplane
include the Model 5380 Ethernet Router Module, the Module 5580 Token Ring
Router Module, and the Model 5782 Centillion MultiProtocol Engine Module.
Any slot designated for switch modules can also be used for a standard Ethernet,
token ring, or FDDI, or ATM module with the appropriate backplane(s) installed
in the chassis. Slot 1 is reserved for the clock module.
Figure 3-2 shows the logical relationship between the Model 5005BH ATM/
Router Backplane and shared-media backplanes in a Model 5005BH chassis.
Figure 3-2. Model 5005BH Chassis Backplanes
8749EA
Slot 1 Slot 8
Power
Common
management bus
Ethernet (1–8)
PPX bus (2–7) Model
5005BH
backplane
Centillion
ATM bus (2–7)
Token ring (1–8)
Model
5005BH
backplane
Slot 2 Slot 7