Cisco Systems Cisco XR 12416 - page 2

Chapter1 Product Overview

Physical and Functional Description of Router

1-2

Cisco XR 12416 Router Installation Guide

OL-13833-01

•Upper Line card and Route Processor card cage—Has 8 user-configurable

slots that support a combination of line cards, a route processor (RP), and an

alarm card. See the “Alarm Card and Line Card Overview” section on

page 1-18 for additional information.

•Switch fabric card cage—Located behind the air filter door, this card cage

contains 5 slots for the switch fabric card set. The switch fabric card set is

made up of 3 switch fabric cards (SFCs) and 2 clock scheduler cards (CSCs).

See the “Switch Fabric Overview” section on page 1-16 for additional

information.

•Lower Line card and Route Processor card cage—Has 8 user-configurable

slots that support a combination of line cards, a redundant route processor

(RP), and an alarm card. See the “Alarm Card and Line Card Overview”

section on page 1-18 for additional information.

•Lower blower module—Supplies cooling air to the lower half of the router so

it does not overheat. See the “Blower Module” section on page1-30 for

additional information.

•Chassis backplane (not shown)—Distributes power to card cages and to the

blower modules.

Contents

Main CHAPT ER Product Overview Physical and Functional Description of Router Page OL-13833-01 Physical and Functional Description of Router ALARM 6DS3SMB P Figure 1-1 Cisco XR 12016 Router ComponentsFront View Switch fabric card cage (behind filter door) ALARM Alarm card Lower card cage AC and DC Power Subsystems Standard AC Power Shelf Page Optional AC Power Shelf OL-13833-01 Physical and Functional Description of Router Figure 1-4 Optional AC-Input Power Subsystem Caution A router equipped with the optional AC power subsystem must be operated with 4 power supplies installed in the power shelf at all times for electromagnetic compatibility (EMC). Page AC Power Supplies OC Fault Temp Pwr Ok DC Power Shelf Page Page DC Power Supplies Chassis Card Cages Upper Card Cage Lower Card Cage Switch Fabric Card Cage Switch Fabric Overview Switch Fabric Card Functionality Clock Scheduler Cards Switch Fabric Cards Alarm Card and Line Card Overview Alarm Cards OL-13833-01 Alarm Card and Line Card Overview ENABLED (green)The alarm card is operational and functioning properly. FAIL (yellow)The alarm card in that slot is faulty. A pair of status LEDs that correspond to each of the 5 card slots in the switch fabric card cage (2 CSCs and 3 SFCs): FAIL (yellow)The card in that slot is faulty. Route Processor Page Performance Route Processor Overview 1 3 4 52 6 PRP PCMCIA Card Slots and Status LEDs PRP Ethernet Ports and Status LEDs PRP Auxiliary and Console Ports PRP Reset Switch PRP Alphanumeric Message Displays PROCESSOR PRP Memory Components Page PRP SDRAM PRP SRAM PRP NVRAM PRP Flash Memory Upper and Lower Cable Management Brackets Blower Module Page Front Rear