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
Chassis, page Multigigabit Crossbar Switch Fabric, page
Maintenance Bus, page Route Processors, page Line Cards, page
Alarm Cards, page Power Subsystems, page Blower Module, 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
Nonredundant and Redundant System Configurations
1-11
Chapter 1 Product Overview Multigigabit Crossbar Switch Fabric
OL-11497-03
Switch Fabric Redundancy
Switch Fabric Switching Capacity and Router Type
1-12
Maintenance Bus
Power-Up/Down Control
Device Discovery
1-13
Diagnostics
Environmental Monitoring and Alarms
Code Download
1-14
Route Processor Functions
Route Processors
1-15
Route Processor Types
Gigabit Route Processor
Gigabit Route Processor, page Performance Route Processor, page
1-16
1-17
Sensors-Air-temperature sensors for environmental monitoring
1-18
Chapter 1 Product Overview Route Processors
GRP Layout
LED displays
GRP Memory Components
DRAM
Type
Size
SRAM
NVRAM
Flash Memory
Total DRAM
1-21
System Status LEDs
Figure 1-6 GRP LEDs Partial Front Panel
Soft Reset Switch
1-22
PCMCIA Slots
Asynchronous Serial Ports
PCMCIA Slot 0 Bottom
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
PRP Memory Components
1-28
Type
Size
SDRAM
1-29
SRAM
NVRAM
Flash Disk Size
Product Number
1-30
System Status LEDs
1-31
Soft Reset Switch
Flash Disk Slots
Ethernet Ports
1-32
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
1-34
Figure 1-10 Sample Line Cards
Chapter 1 Product Overview
Line Cards
1-35
Alarm Cards
ALARM
Alarm Output Function
Clock and Scheduler Card and Switch Fabric Card Status
Alarm Card Status
1-36
Power Subsystems
Power Source Monitoring
Alarm Relay Contact Connector
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
DC Power Subsystem
DC PDU
LED Label
Function
Figure 1-14 DC Power Distribution Unit
1-43
POWER A
DC-Input Power Entry Module
1-44
POWER A
Chapter 1 Product Overview Power Subsystems
Figure 1-16 DC-Input Power Entry Module
1-45
MISWIRE
Color
1-46
DC-input PEM LED Indicators
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