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Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
Preface
Audience
This guide is intended for cable system installers and technicians who physically install and connect the
Cisco uBR7225VXR universal broadband router and associated equipment at the cable headend or
distribution hub. Cable system installers and technicians should be familiar with their cable plant base
operating parameters and service offerings.
The guide provides limited configuration information. After following applicable procedures in this
guide, refer to the “Obtaining Documentation and Submitting a Service Request” section on page xii for
related Cisco publications that more completely address configuration.
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Document Organization
This hardware installation guide is organized into the following chapters and appendixes:
Chapter Title Description
Chapter 1, “Cisco uBR7225VXR
Overview”
About Cisco uBR7225VXR chassis and components.
Chapter 2, “Preparing the
Cisco uBR7225VXR Router for
Installation”
Safety considerations, tools, and other equipment required to prepare your site.
Chapter 3, “Installing the
Cisco uBR7225VXR Router”
Installing the chassis and connecting the power and network interface cables.
Chapter 4, “Connecting the
Cisco uBR7225VXR Router to the
Cable Headend”
Connecting the Cisco uBR7225VXR router to a hybrid fiber-coaxial (HFC)
network and configuring and measuring downstream and upstream portions of the
HFC network.
Chapter 5, “Maintaining the
Cisco uBR7225VXR Router”
Basic hardware maintenance instructions.
Chapter 6, “Troubleshooting” Troubleshooting hardware installations.
Appendix A, “Cisco uBR7225VXR
Router Specifications”
System specifications.
Appendix B, “RF Specifications” Recommended RF settings at the headend for both Data-over-Cable Service
Interface Specifications (DOCSIS) and EuroDOCSIS networks.
Appendix C, “Cable Specifications” Cable and cable pinout information for the Cisco uBR7225VXR router.
Appendix D, “Industry-Standard Wiring
Plans”
The telephone industry color-code schemes for 25-pair wires including the pin
numbers, optical fibers, and small wire pairs.
Appendix E, “Frequency Allocation
Tables”
Information on the National Television System Committee (NTSC) frequency
map for 6-MHz channel bands and the Phase Alternating Line (PAL) and
SEquential Couleur Avec Memoire (SECAM) frequency map for 8-MHz channel
bands.