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Cisco XR 12416 Router Installation Guide

OL-13833-01

CHAPTER

Product Overview

This chapter provides an overview of the Cisco XR 12416 router. It contains

physical descriptions of the router hardware and major components, as well as

functional descriptions of the hardware-related features.

Physical and Functional Description of Router

The Cisco XR 12416 router chassis is a sheet-metal enclosure that houses router

components. The major components consist of three power supplies, upper and

lower line card cages, a switch fabric card cage, and upper and lower blower

modules. Power is distributed to these components over the chassis backplane.

All router models contain the following major components (Figure 1-1):

• Power shelf and power supplies—Three AC or DC power entry modules

(PEMs) provide power to the router. See the “AC and DC Power Subsystems”

section on page 1-4 for additional information.

• Upper blower module—Supplies cooling air to the upper half of the router so

it does not overheat. See the “Blower Module” section on page 1-30 for

additional information.

• Upper and lower cable management brackets—Used to neatly route line card

cables. See the “Upper and Lower Cable Management Brackets” section on

page 1-30 for additional information.

1 2 3 4 5 6 ... 33 34

Inhaltsverzeichnis

Seite 1 - Product Overview

1-1Cisco XR 12416 Router Installation GuideOL-13833-01CHAPTER 1Product OverviewThis chapter provides an overview of the Cisco XR 12416 router. It cont

Seite 2

Chapter 1 Product OverviewPhysical and Functional Description of Router1-10Cisco XR 12416 Router Installation GuideOL-13833-01The status LEDs on

Seite 3 - FAST ETERNET

1-11Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterIn the DC-input po

Seite 4 - AC and DC Power Subsystems

Chapter 1 Product OverviewPhysical and Functional Description of Router1-12Cisco XR 12416 Router Installation GuideOL-13833-01Figure 1-8 DC-Inpu

Seite 5 - Power cord

1-13Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterDC Power SuppliesE

Seite 6 - Optional AC Power Shelf

Chapter 1 Product OverviewChassis Card Cages1-14Cisco XR 12416 Router Installation GuideOL-13833-01The status LEDs on a DC PEM provide informati

Seite 7

1-15Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewChassis Card CagesLower Card CageThe lower card cage also has e

Seite 8 - Figure 1-5

Chapter 1 Product OverviewSwitch Fabric Overview1-16Cisco XR 12416 Router Installation GuideOL-13833-01Switch Fabric OverviewThe switch fabric p

Seite 9 - AC Power Supplies

1-17Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewSwitch Fabric OverviewCaution Do not remove the blank filler pa

Seite 10 - DC Power Shelf

Chapter 1 Product OverviewAlarm Card and Line Card Overview1-18Cisco XR 12416 Router Installation GuideOL-13833-01Alarm Card and Line Card Overv

Seite 11 - OL-13833-01

1-19Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewAlarm Card and Line Card Overview–ENABLED (green)—The alarm car

Seite 12

Chapter 1 Product OverviewPhysical and Functional Description of Router1-2Cisco XR 12416 Router Installation GuideOL-13833-01• Upper Line card a

Seite 13 - DC Power Supplies

Chapter 1 Product OverviewRoute Processor1-20Cisco XR 12416 Router Installation GuideOL-13833-01Line CardsUp to 15 Cisco XR 12416 router line ca

Seite 14 - Chassis Card Cages

1-21Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewRoute Processor• Uploads the operating system software images t

Seite 15 - Switch Fabric Card Cage

Chapter 1 Product OverviewRoute Processor1-22Cisco XR 12416 Router Installation GuideOL-13833-01Performance Route Processor OverviewThe performa

Seite 16 - Switch Fabric Overview

1-23Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewRoute ProcessorPRP Ethernet Ports and Status LEDsThe PRP has tw

Seite 17 - Clock Scheduler Cards

Chapter 1 Product OverviewRoute Processor1-24Cisco XR 12416 Router Installation GuideOL-13833-01PRP Auxiliary and Console Ports The auxiliary an

Seite 18 - Alarm Cards

1-25Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewRoute ProcessorPRP Alphanumeric Message DisplaysThe alphanumeri

Seite 19

Chapter 1 Product OverviewRoute Processor1-26Cisco XR 12416 Router Installation GuideOL-13833-01PRP Memory ComponentsThis section describes vari

Seite 20 - Route Processor

1-27Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewRoute ProcessorFigure 1-14 PRP Memory LocationsEJECTRXTXPRIMARY

Seite 21

Chapter 1 Product OverviewRoute Processor1-28Cisco XR 12416 Router Installation GuideOL-13833-01PRP SDRAMThe PRP uses Error Checking and Correct

Seite 22 - ETH 1ETH 0 AUX

1-29Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewRoute ProcessorPRP NVRAMNon-volatile Random Access Memory (NVRA

Seite 23 - ETH 1ETH 0

1-3Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterFigure 1-1 Cisco XR

Seite 24 - PRP Reset Switch

Chapter 1 Product OverviewBlower Module1-30Cisco XR 12416 Router Installation GuideOL-13833-01Upper and Lower Cable Management BracketsThe Cisco

Seite 25 - PROCESSOR

1-31Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewBlower ModuleEach blower module contains three variable speed f

Seite 26 - PRP Memory Components

Chapter 1 Product OverviewBlower Module1-32Cisco XR 12416 Router Installation GuideOL-13833-01Figure 1-16 Cooling Air FlowTo ensure that there i

Seite 27

1-33Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewBlower ModuleCaution You should inspect and clean the air filte

Seite 28 - PRP SRAM

Chapter 1 Product OverviewBlower Module1-34Cisco XR 12416 Router Installation GuideOL-13833-01

Seite 29 - PRP Flash Memory

Chapter 1 Product OverviewPhysical and Functional Description of Router1-4Cisco XR 12416 Router Installation GuideOL-13833-01AC and DC Power Sub

Seite 30 - Blower Module

1-5Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterFigure 1-2 Standard

Seite 31

Chapter 1 Product OverviewPhysical and Functional Description of Router1-6Cisco XR 12416 Router Installation GuideOL-13833-01Optional AC Power S

Seite 32 - Front Rear

1-7Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterFigure 1-4 Optional

Seite 33

Chapter 1 Product OverviewPhysical and Functional Description of Router1-8Cisco XR 12416 Router Installation GuideOL-13833-01AC power to the rou

Seite 34

1-9Cisco XR 12416 Router Installation GuideOL-13833-01Chapter 1 Product OverviewPhysical and Functional Description of RouterAC Power SuppliesEa

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