Cisco Systems manual Cisco XR 12410 Router Installation Guide

Chapter 1 Cisco XR 12410 Router Overview

Physical and Functional Description of Router

•Switch fabric and alarm card cage—Located behind the air filter door, this card cage contains 7 slots for the switch fabric card set, and two slots for alarm cards. The switch fabric card set is made up of five switch fabric cards (SFCs) and two clock scheduler cards (CSCs). See the “Switch Fabric and Alarm Card Overview” section on page 1-9for additional information.

•Power Entry Modules—Either two AC power entry modules (PEMs) or two DC PEMs provide power to the router. See the “AC and DC Power Subsystems” section on page 1-5for additional information.

•Chassis backplane (not shown)—Distributes power to the chassis components.

	Cisco XR 12410 Router Installation Guide
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