Cisco Systems UBR7225VXR specifications Lifting the Cisco uBR7225VXR Router Safely

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Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation

Safety Recommendations

Do not wear loose clothing, jewelry (including rings and chains), or other items that could get caught in the chassis.

For systems with installed AC-input power supplies, the Cisco uBR7225VXR router ships with a

3-wire electrical grounding-type plug, which only fits into a grounding-type power outlet. This is a safety feature. The equipment grounding should be in accordance with local and national electrical codes.

The Cisco uBR7225VXR router operates safely when it is used in accordance with its marked electrical ratings and product usage instructions.

Warning Only trained and qualified personnel should be allowed to install or replace this equipment.

Statement 1030

Note For Australia and New Zealand, equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.

Warning Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

Lifting the Cisco uBR7225VXR Router Safely

Before you install the router, ensure that your site configuration is properly designed and prepared so that you can avoid having to move the router later to accommodate power sources and network connections.

A fully-configured Cisco uBR7225VXR router (with two 300W power supplies) weighs approximately 48 pounds (21.8 kilograms).

Whenever you lift a chassis or any heavy object, follow these guidelines:

Always disconnect all external cables before lifting or moving the chassis.

Do not attempt to lift the chassis by yourself; have someone assist you (see Figure 2-1 on page 2-3).

Ensure that your footing is solid, and balance the weight of the object between your feet.

Lift the chassis slowly; never move suddenly or twist your body as you lift.

Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.

Lift the chassis from the bottom; grasp the underside of the chassis exterior with both hands.

Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide

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OL-17309-02

 

 

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Contents Americas Headquarters Text Part Number OL-17309-02Page N T E N T S AC Power Measuring the Downstream RF Signal at the Upconverter Output Maintaining the Cisco uBR7225VXR Router Coaxial Cables C-1 Viii Document Objectives PrefaceDocument Revision History Revision Date Change SummaryDocument Organization AudienceChapter Title Description Document Conventions Appendix G, Site LogObtaining Documentation and Submitting a Service Request Cisco uBR7225VXR Overview Cisco uBR7225VXR Universal Broadband RouterOL-17309-02 Cisco uBR7225VXR Router Chassis Cable interface line card slotCisco uBR7225VXR Network Interface Overview Card Slot and Logical Interface NumberingMAC-Layer Address Cisco uBR7255VXR Chassis and Cable Interface Line CardsSupported System Configurations Overview Basic Internet Access ServicesTwo-Way HFC Cable Network Example VPN Services IP Telephony ServicesTelco Return HFCHardware Component Descriptions Network Processing EngineNPE Comparisons Cisco Cable Interface Line Cards Power Supplies Cisco uBR7225VXR AC-Input Power Supply Fan TraysCisco uBR7225VXR Fan Tray Internal Airflow-Top View Cisco uBR7225VXR Chassis Subchassis and MidplaneCompactFlash Disk Top BackCisco uBR7225VXR Overview Hardware Component Descriptions OL-17309-02 Installation Safety RecommendationsLifting the Cisco uBR7225VXR Router Safely Safety with Electricity Lifting the Chassis Cisco uBR7246 Router ShownPreventing Electrostatic Discharge Damage Site Requirements AC PowerSite Environment General Precautions Site Configuration Maintaining Normal OperationSpecification Minimum Maximum Required Network Information Power ConsiderationsBefore You Begin Installation Tools Rack-Mount and Cable-Management KitEquipment Required to Verify Your Plant’s RF Setup Shipping Container ContentsProvisioning the Cable Headend Two-Way Data and VoIPDiplex Filters Headend CertificationReceivers Dial-Up/Remote Access Servers DHCP, DNS, TFTP, and TD ServersVoIP Gateways and Gatekeepers Authentication, Authorization, and Accounting ServersVoIP Sgcp Pass-Through Headend Wiring Interference ConsiderationsEquipment Racks 17.32 23.875 21.875 Site Preparation Checklist Task Verified By DateComponent Checklists Task Verified By DateInstalling the Cisco uBR7225VXR Router Cisco uBR7225VXR Router Installation ChecklistCisco uBR7225VXR Router Chassis Rack-Mounting Options Typical 4-Post Equipment Rack Posts and Mounting Strips Rack-mount bracket Installing the Chassis in a Telco-Type Rack Cable-Management Bracket RequirementsRack-mount bracket Cable-management bracket Installing the Brackets on the Chassis Installing Rack-Mount Brackets on the Rear of the ChassisInstalling Rack-Mount Brackets on the Front of the Chassis Installing Rack-Mount Brackets in the Middle of the Chassis Installing the Chassis in the Rack OL-17309-02 OL-17309-02 Cabling Connecting Cable Interface Line Card Cables Console and Auxiliary Port Connection EquipmentAuxiliary Port Signals Console Port SignalsPin Signal Direction Description Connecting Power Protective GroundingConnecting to the AC-Input Power Supply Powering On the Cisco uBR7225VXR Router 14 Connecting AC-Input PowerConfiguring the Interfaces OL-17309-02 Connecting the Cisco uBR7225VXR Router to the Cable Headend Two-Way Data Headend Architecture One-Way Data Headend Architecture RF and Digital Data OverviewMeasuring the Downstream RF Signal Connecting and Configuring the DownstreamInstalling and Configuring the Upconverter Page Viewing the Downstream if Signal on a Spectrum Analyzer Measuring the Downstream RF Signal at the Upconverter Output Overloaded Spectrum Analyzer Input Page OL-17309-02 OL-17309-02 OL-17309-02 OL-17309-02 OL-17309-02 OL-17309-02 OL-17309-02 OL-17309-02 Docsis Specification Connecting and Configuring the UpstreamConnecting the Upstream to the Optical Receiver Channel Bandwidth Cisco MC11 FpgaTesting the Upstream Configuration 30 km Fiber node Milliwatt Measure +10 dBmV at this pointOptical receiver Downstream Optical +10 dBmV Receiver +13 dBmV Attenuator Measuring the Upstream RF Signal Measuring the Upstream RF Signal Using a Spectrum AnalyzerOL-17309-02 OL-17309-02 Analyzing the Upstream RF Signal 29 Analyzing the Upstream RF Signal-64-Byte Data Packets30 Analyzing the Upstream RF Signal-1500-Byte Data Packets OL-17309-02 Center Frequency Minimum Resolution Using the Zero-Span Method with Adjacent Upstream ChannelsSymbol Rate +/-1/2 Symbol Rate Bandwidth OL-17309-02 35 Vector Signal Analyzer Plot of Upstream Data Burst OL-17309-02 OL-17309-02 OL-17309-02 39 Preamble Amplitude Before Center Frequency Adjustment 41 Original Preamble Viewed with Accelerated Sweep Time OL-17309-02 Connecting the Cisco uBR7225VXR Router to the Cable Headend OL-17309-02 Connecting the Cisco uBR7225VXR Router to the Cable Headend Configuring the Digital Signal OL-17309-02 OL-17309-02 Maintaining the Cisco uBR7225VXR Router Online Insertion and RemovalEnvironmental Monitoring and Reporting Functions Environmental MonitoringReporting Functions Parameter High Warning High Critical ShutdownRouter# show environment Temperature ranges and values are subject to change Fan Failures Overview TroubleshootingProviding Information Problem Solving with Subsystems Troubleshooting Problem Solving with SubsystemsIdentifying Startup Problems Power Subsystem Cooling SubsystemTroubleshooting the Network Processing Engine Processor SubsystemTroubleshooting Cable Interface Line Cards Verifying the Downstream Signal Other Troubleshooting Information WebsitesTroubleshooting Verifying the Downstream Signal Cisco uBR7225VXR Router Specifications Description SpecificationBroadband Routers at the following URL Bandwidth, MHz Msym/sec Mbps Rate, Mbps RF SpecificationsChannel Symbol Rate Raw Data Rate Nominal Data Channel Qpsk RawDownstream RF Channel Transmission Characteristics Docsis 1.0 Transmission CharacteristicsParameter Value Upstream RF Channel Transmission Characteristics Docsis 1.1 Transmission Characteristics EuroDOCSIS Transmission Characteristics Downstream RF Channel Transmission Characteristics Upstream RF Channel Transmission Characteristics Electrical Input and Output Parameter Value OL-17309-02 Cable Specifications Coaxial CablesConsole and Auxiliary Port Cables and Pinouts Identifying an RJ-45 Rollover CableConsole Port Cables and Pinouts RJ-45-to-DB-9Auxiliary Port Cables and Pinouts Fast Ethernet Port Cables and PinoutsIdentifying an RJ-45 Crossover Cable RJ-45 Pin Identifying an RJ-45 Straight-Through CableRJ-45 Pin Description Fiber-Optic Cables and Connectors Figure C-5 Duplex SC Cable ConnectorIndustry-Standard Wiring Plans About Wiring StandardsTIA/EIA Standards Information Optical Fiber Color CodesPosition Color Telephone Wire Color Codes Pair Number Wire Number Solid Color Stripe Color Pin NumberPair Number Wire Number Solid Color Stripe Color Pin Number Pair Number Wire Number Solid Color Stripe Color White Blue Green Red Orange Black YellowOL-17309-02 Frequency Allocation Tables Http//developer.apple.com Http//atxnetworks.comStandards Comparisons B1, G D1, KNtsc Cable Television Channels and Relative Frequencies Freq MHz Carrier Visual Aural Table E-4 Freq MHz Carrier Visual Aural Table E-4 Ntsc M Cable Television Frequencies for Japan Table E-5 Japanese Channel Assignments PAL/SECAM Cable Television Channels and Relative Frequencies Bandwidth Visual Carrier Aural CarrierChannel Channel Bandwidth Visual Carrier Aural Carrier Number MHz Table E-6 OL-17309-02 North American Channel Plans Manufacturers for Headend Provisioning RequirementsManufacturer Website or Phone Number Products/Model Agilent Agilent 89411A European Channel Plans Agilent Agilent 8591C Tektronix 2715 Sunrise Telecom AT2000R Site Log Initials Symbols GL-2 GL-3 GL-4 GL-5 GL-6 D E IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8
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