Contents
C H A P T E R
Introduction
Product Overview
Product Description
Line card slots five
Cisco 12006 and Cisco 12406 routers have the following key features
All power modules and other field replaceable units FRUs, except for the air blower module and the power distribution unit PDU, can be removed from the front of the chassis
Blower module Blower module LEDs Blower module handle
Alarm Cards, page Power Subsystems, page Blower Module, page
Chassis, page Multigigabit Crossbar Switch Fabric, page
Maintenance Bus, page Route Processors, page Line Cards, page
Physical and Functional Description
Alarm Card Slots
Switch Fabric Card Slots
Chassis Backplane
Power
Cooling
Switch Fabric Card Types
Multigigabit Crossbar Switch Fabric
1-10
Chapter 1 Product Overview Multigigabit Crossbar Switch Fabric
Nonredundant and Redundant System Configurations
1-11
OL-11497-03
Switch Fabric Redundancy
Switch Fabric Switching Capacity and Router Type
1-12
Device Discovery
Maintenance Bus
Power-Up/Down Control
1-13
Code Download
Diagnostics
Environmental Monitoring and Alarms
1-14
Route Processor Functions
Route Processors
1-15
Gigabit Route Processor, page Performance Route Processor, page
Route Processor Types
Gigabit Route Processor
1-16
1-17
Sensors-Air-temperature sensors for environmental monitoring
GRP Layout
1-18
Chapter 1 Product Overview Route Processors
LED displays
Type
GRP Memory Components
DRAM
Size
Flash Memory
SRAM
NVRAM
Total DRAM
1-21
System Status LEDs
Figure 1-6 GRP LEDs Partial Front Panel
Soft Reset Switch
1-22
PCMCIA Slot 0 Bottom
PCMCIA Slots
Asynchronous Serial Ports
PCMCIA Slot 1 Top
Ethernet Port
1-24
1-25
Performance Route Processor
Figure 1-8 Performance Route Processor Front View
1-26
The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP
1-27
Backplane connector
Type
PRP Memory Components
1-28
Size
SRAM
SDRAM
1-29
NVRAM
1-30
Flash Disk Size
Product Number
System Status LEDs
1-31
Soft Reset Switch
1-32
Flash Disk Slots
Ethernet Ports
The PRP includes two Flash disk PCMCIA slots. Either slot can support an ATA Flash disk or a Type 1 or Type 2 linear Flash memory card. The PRP ships by default with one 64-MB ATA Flash disk
Line Cards
1-33
Chapter 1 Product Overview
1-34
Figure 1-10 Sample Line Cards
Line Cards
1-35
Alarm Cards
ALARM
Alarm Card Status
Alarm Output Function
Clock and Scheduler Card and Switch Fabric Card Status
1-36
Alarm Relay Contact Connector
Power Subsystems
Power Source Monitoring
AC Power Subsystem, page DC Power Subsystem, page
AC PDU
AC Power Subsystem
1-38
1-39
Captive screw
AC-Input Power Supply
1-40
1-41
An AC-input power supply shown in Figure 1-13 has the following features
LED Label
DC Power Subsystem
DC PDU
Function
Figure 1-14 DC Power Distribution Unit
1-43
POWER A
POWER A
DC-Input Power Entry Module
1-44
Chapter 1 Product Overview Power Subsystems
Figure 1-16 DC-Input Power Entry Module
1-45
MISWIRE
DC-input PEM LED Indicators
Color
1-46
LED Label
Blower Module
Power Distribution
1-47
Top view
1-48
Figure 1-17 Internal Air Flow Top View
1-49
Air Filters
Figure 1-18 Air Filter Locations
Cable-Management System
1-50
Figure 1-19 Chassis Cable-Management System
1-51
CISCO 12000 SERIES
Field-Replaceable Units
Technical Specifications
1-52
Ejector lever 
Ejector lever 
