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Cisco Systems 12406 series, 12006 series manual 1-26

Models: 12006 series 12406 series

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The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP:

Chapter 1 Product Overview

Route Processors

The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP:

1.Onboard Flash memory—Ships as a single in-line memory module (SIMM). This Flash memory contains the Cisco IOS boot image (bootflash) and is not field replaceable.

2.Flash disk—The PRP ships with a Flash disk that can be installed in either Flash disk slot. (See Figure 1-9.) The Flash disk contains the Cisco IOS software image.

Storing the Cisco IOS images in Flash memory enables you to download and boot from upgraded Cisco IOS software images remotely, or from software images that reside in PRP Flash memory.

Cisco 12000 Series Routers support downloadable system software for most Cisco IOS software upgrades. This enables you to remotely download, store, and boot from a new Cisco IOS software image. The Cisco IOS software runs from within the SDRAM of the PRP.

Figure 1-9shows the locations of the various hardware components on the PRP.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
1-26	OL-11497-03

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Cisco Systems 12406 series, 12006 series manual 1-26

Contents

Product Overview IntroductionC H A P T E R 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, pageMaintenance Bus, page Route Processors, page Line Cards, page Physical and Functional DescriptionChassis Backplane Switch Fabric Card SlotsAlarm Card Slots Power Cooling1-10 Multigigabit Crossbar Switch FabricSwitch Fabric Card Types Chapter 1 Product Overview Multigigabit Crossbar Switch Fabric Nonredundant and Redundant System Configurations1-11 OL-11497-031-12 Switch Fabric Switching Capacity and Router TypeSwitch Fabric Redundancy Device Discovery Maintenance BusPower-Up/Down Control 1-13Code Download DiagnosticsEnvironmental Monitoring and Alarms 1-141-15 Route ProcessorsRoute Processor Functions Gigabit Route Processor, page Performance Route Processor, page Route Processor TypesGigabit Route Processor 1-161-17 Sensors-Air-temperature sensors for environmental monitoringGRP Layout 1-18Chapter 1 Product Overview Route Processors LED displaysType GRP Memory ComponentsDRAM SizeFlash Memory SRAMNVRAM Total DRAMFigure 1-6 GRP LEDs Partial Front Panel System Status LEDs1-21 Soft Reset Switch 1-22PCMCIA Slot 0 Bottom PCMCIA SlotsAsynchronous Serial Ports PCMCIA Slot 1 TopEthernet Port 1-24Figure 1-8 Performance Route Processor Front View Performance Route Processor1-25 1-26 The Cisco IOS software images are stored in Flash memory. Two types of Flash memory ship with the PRP1-27 Backplane connectorType PRP Memory Components1-28 SizeSRAM SDRAM1-29 NVRAM1-30 Flash Disk SizeProduct Number System Status LEDs1-31 Soft Reset Switch1-32 Flash Disk SlotsEthernet 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 diskLine Cards 1-33Chapter 1 Product Overview 1-34Figure 1-10 Sample Line Cards Line CardsALARM Alarm Cards1-35 Alarm Card Status Alarm Output FunctionClock and Scheduler Card and Switch Fabric Card Status 1-36Alarm Relay Contact Connector Power SubsystemsPower Source Monitoring AC Power Subsystem, page DC Power Subsystem, page1-38 AC Power SubsystemAC PDU 1-39 Captive screwAC-Input Power Supply 1-401-41 An AC-input power supply shown in Figure 1-13 has the following featuresLED Label DC Power SubsystemDC PDU FunctionPOWER A 1-43Figure 1-14 DC Power Distribution Unit POWER A DC-Input Power Entry Module1-44 Chapter 1 Product Overview Power SubsystemsMISWIRE 1-45Figure 1-16 DC-Input Power Entry Module DC-input PEM LED Indicators Color1-46 LED Label1-47 Power DistributionBlower Module Figure 1-17 Internal Air Flow Top View 1-48Top view Figure 1-18 Air Filter Locations Air Filters1-49 Cable-Management System 1-50CISCO 12000 SERIES 1-51Figure 1-19 Chassis Cable-Management System 1-52 Technical SpecificationsField-Replaceable Units