Cisco 7000 Hardware Installation And Maintenance page 26

Physical Description
Figure 1-3
LED
board
System
blower
Air dam
Air filter
Figure 1-4
CxBus EIP
2/4/6-port Ethernet 2/4-port Token Ring
interface processor interface processor
The backplane slots are keyed so that the RP, SP (or SSP), and interface processors can be installed
only in the slots designated for them. Keys on the backplane fit into two key guides on each processor
module. (See Figure 1-5.) While the RP and SP (or SSP) each use unique keys, all five interface
processor slots use the same key, so you can install an interface processor in any interface processor
slot, but not in the RP or SP (or SSP) slots.
1-22 Cisco 7000 Hardware Installation and Maintenance
Router Chassis, Top-Down View
Front
of Chassis
Router System Architecture
RP
• 68040 CPU
• Flash EPROM
• 16-MB DRAM
• ENVM Logic
SP or SSP
CxBus TRIP CxBus FIP
Single-port FDDI
interface processor
Cy Bus
backplane
Distributed processing
CxBus FSIP
4/8 port fast serial
interface processor
Processor
slots
Power
supply
bays
Rear
of Chassis
CxBus HIP
Single-port HSSI
interface processor