Preface; Objective; Audience; Related Cisco Crs Documentation - Cisco CRS-1 System Description

Preface

This preface explains the objectives, intended audience, and organization of this Cisco CRS Carrier Routing
System 8-Slot Line Card Chassis Enhanced Router System Description , commonly referred to as the "system
description" in this document, and presents the conventions used in this manual .
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Objective

This guide describes the Cisco CRS 8-Slot Line Card Chassis Enhanced router from a system point of view.
This guide focuses on the hardware elements, including descriptions of most of the major assemblies, such
as the power and cooling systems, the switch fabric, route processor, and modular services cards. It also
provides background information and the basic theory of operation for this routing system .
This guide can be read as a supplement to the Site Planning Guide, Installation Guide, and the related software
documents.

Audience

This guide is intended for service provider customers and Cisco installation partners who have substantial
background in configuring router-based internetworks and experience with routers and Cisco IOS XR software.
The system description provides a high-level introduction to the components and vocabulary used within the
Cisco CRS 8-Slot Line Card Chassis Enhanced router product.

Related Cisco CRS Documentation

For a complete listing of planning, installation, and configuration documents, see the following publications:
• Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Unpacking, Moving, and
• Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Site Planning Guide
Objective, on page vii
Audience, on page vii
Related Cisco CRS Documentation, on page vii
Changes to This Document, on page viii
Obtaining Documentation and Submitting a Service Request, on page ix
Securing Guide
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description
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