This preface explains the objectives, intended audience, and organization of this Cisco CRS Carrier Routing System Multishelf System Interconnection and Cabling Guide, commonly referred to as the cabling guide in this document. This section also presents the conventions used in this guide. This preface includes the following sections:
•Changes to This Document
•Related Cisco CRS Documentation
•Obtaining Documentation and Submitting a Service Request
This cabling guide describes how to interconnect the switch fabric cards of the chassis that comprise the Cisco CRS Carrier Routing System Multishelf System. This cabling guide supplements other multishelf system documentation, such as the site planning guide, installation documents, and software documents.
The Cisco CRS Carrier Routing System Multishelf System Interconnection and Cabling 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.
Changes to This Document
Table 1 lists the technical changes made to this document since it was first printed.
This cabling guide contains the following chapters and appendixes:
•Chapter 1 "Introduction to Multishelf System Cabling," provides a brief overview of interconnection cabling requirements for the Cisco CRS Multishelf System.
•Chapter 2 "Cabling for System Management, Alarms, and Network Clocking," provides information about how to provide cabling for basic system management.
•Chapter 3 "Cabling the Control Network Using 22-Port Shelf Controller Gigabit Ethernet Cards," describes how to attach data and optical cables between the 22-port shelf controller Gigabit Ethernet cards, two line card chassis, and one or more fabric card chassis.
Note The multishelf system control network is configured with 22-port shelf controller Gigabit Ethernet (22-port SCGE) cards. Follow the steps in the chapter that applies to your configuration.
•Chapter 4 "Cabling the Fabric," describes how to interconnect the switch fabric cards between two line card chassis and one, two, or four fabric card chassis.
•"Multimodule Horizontal Cabling Plans" describes cabling plans that you might use for expanded Cisco CRS Multishelf installation.
•"Vertical Cabling Plans" shows the multimodule fabric cabling connection plan for eight planes in a 9+1 multishelf installation.
This guide uses the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this guide.
reader be careful. You are capable of doing something that might result in equipment damage or loss of data.
Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
SAVE THESE INSTRUCTIONS
Understanding Warning Statement Numbers
Each Warning in this guide contains a Statement Number. For example, the previous warning is Statement 1071. The Regulatory Compliance and Safety Information for the Cisco CRS-1 Carrier Routing System booklet contains translations of every warning that appears in this guide. The compliance and safety booklet shipped with your chassis. The booklet lists translated warnings in numerical sequence, by statement number.
Related Cisco CRS Documentation
•Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Site Planning Guide
•Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Installation Guide
•Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Unpacking, Moving, and Securing Guide
•Cisco CRS Carrier Routing System SIP and SPA Hardware Installation Guide
•Cisco CRS Carrier Routing System 16-Slot Line Card Chassis Hardware Operations and Troubleshooting Guide
•Cisco CRS Carrier Routing System Ethernet Physical Layer Interface Module Installation Note
•Cisco CRS Carrier Routing System Packet-over-SONET/SDH Physical Layer Interface Module Installation Note
•Cisco CRS Carrier Routing System Regulatory Compliance and Safety Information
For a complete list of software documentation available for the Cisco CRS Carrier Routing System, see About Cisco IOS-XR Software Documentation, available online at http://www.cisco.com.
See the "Obtaining Documentation and Submitting a Service Request" section for more information on obtaining these and other publications, including information subscribing to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.