Cisco Systems uBR7225VXR инструкция обслуживания

Americas Headquarters Cisco Systems, In c. 170 West Tasman Drive San Jose, CA 951 34-1706 USA http://www.ci sco.com Tel: 408 526-4000 800 553-NETS (638 7) Fax: 408 527-0883 Cisco uBR7225VXR Univ ersal Broadband Router Hardw are Installation Guide THE SPECIFICATIONS AND INFORMATION REGARD ING THE PRODUCTS IN TH IS MANUAL ARE SUBJEC T TO CHANGE WI TH[...]

THE SOFTWARE LI CENSE AND LIMITED WARRANTY FOR THE A CCOMPANYING PROD UCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HE REIN BY THIS REFERE NCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESE NTATIVE FOR A COPY. The following info rmation is for FCC co[...]

iii Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 CONTENTS Document Revision History ix Document Objectives ix Audience x Document Organization x Document Conventions xi Warning Definition xii Obtaining Documentation and Submitting a Serv ice Request xii CHAPTER 1 Cisco uBR7225VXR Overview 1-1 Cisco uBR7225[...]

Contents iv Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Preventing Electrostatic Disch arge Damage 2-4 Site Requirements 2-5 AC Power 2-5 Site Environment 2-5 Site Configuration: Maintainin g Normal Operation 2-6 General Precautions 2-6 Power Considerations 2-7 Required Network Information 2-7 Before You Beg[...]

Contents v Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Installing Rack-Mount Brackets on the Rear of the Chassis 3-7 Installing Rack-Mount Brackets on the Front of the Ch assis 3-8 Installing Rack-Mount Brackets in the Middle of the Chassis 3-9 Installing the Chassis in the Rack 3-10 Installing the Chassis i[...]

Contents vi Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Measuring the RF Signal at the Forward Test Point on a Laser Transmitter 4-37 Configuring the Digital Signal 4-40 CHAPTER 5 Maintaining the Cisco uBR7225VXR Router 5-1 Online In sertion and Re moval 5-1 Environmental Monitoring and Reporting Func tions [...]

Contents vii Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX C Cable Specifications C-1 Coaxial Cables C-1 Console and Auxiliary Port Cables and Pinouts C-2 Identifying an RJ-45 Rollover Cable C-2 Console Port Cables a nd Pinouts C-3 Auxiliary Port Cables and Pinou ts C-4 Fast Ethernet Port Cables and P[...]

Contents viii Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02[...]

ix Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 Preface This preface d escribes the object iv es, intended audien ce, and or ganization o f this document and e xplains ho w to fin d additional information on related produc ts and services. This preface contains the follo wing sections: • Document Re visi[...]

x Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Preface Audience This guide is intended for cable syst em installers and tec hnicians wh o physically install and connect th e Cisco uBR7225VXR uni versal b roadband router and asso ciated equipment at the cable headend or distribu tion hub . Cable system install[...]

xi Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Preface Document Conventions This publication u ses the follo wing con v entions: • The symbol ^ represents the key labeled Contr ol . For examp le, the ke y combination ^z means hold down the Control key whi le you press the z ke y . Command descriptions use [...]

xii Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Preface T imesaver Means the described action saves t ime . Y ou can sav e time by performin g the action described i n the paragraph. Ti p Means the following i nformation migh t help you solve a pr oblem . For all w arning translations, refer to the Re gulato[...]

CH A P T E R 1-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 1 Cisco uBR7225VXR Overview This chapter describes the Ci sco uBR7225VXR uni ver sal broadband router and contai ns the follo wing sections: • Cisco uBR7225VXR Uni versal Broadband Router , page 1-1 • Cisco uBR7225VXR Network Int erface Ov ervi[...]

1-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Cisco uBR7225VXR Universal Br oadband Router • A midplane that serv es as the interconnect betw een the cable interface line cards and the other components of the system. See the “Subchassis and Midplane” section o n pa[...]

1-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Cisco uBR7225VXR Universal Broadband Router Cisco uBR7225VXR Router Chassis The Cisco uBR7225VXR router chassis has: • T wo slots for cable interface cards • One slot for a network processing engine The front of the Cisc[...]

1-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Cisco uBR7225VXR Network Interf ace Overview Figur e 1 -2 Cisco uBR7225VXR Router — Rear View Cisco uBR7225VXR Network Interface Overview This section pro vides a functional o vervie w of the ne twork interfaces a vailable [...]

1-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Cisco uBR7225VXR Network Interface Overview Figur e 1 -3 Cisco uBR7255VXR Chassi s a nd Cable Interf ace Line Cards MAC-Layer Address All LAN interfaces (ports) r equire unique MA C-layer addresses , also known as h a rd w a[...]

1-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Supported System Configurations Overview Supported System Configurations Overview The Cisco uBR7200 series uni versal broadband routers is inst alled at a cable television headend or a distrib ution hub . Related networking a[...]

1-7 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Supported System Con figurations Overview – T elc o return cable i nterfaces transmit over th e PSTN. Dial-up serv ers and other equipment handle the upstream traf fic a nd pass appro priat e data to the Cisco uBR7 225VXR [...]

1-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Supported System Configurations Overview VPN Services The Cisco uBR7225VXR router supp orts VPN services. Figure 1 -5 shows a typical VPN architecture. VPNs can be initiated at a cable modem residing at a s ubscriber site or [...]

1-9 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Supported System Con figurations Overview Figur e 1 -6 T w o-W ay IP T eleph on y Networ k Example Telco Return In telco return conf igurations, th e Cisco uBR722 5VXR uni versal broadband rout er provides do wnstream data f[...]

1-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions Figur e 1 -7 T elco Retur n Networ k Example Hardware Component Descriptions Most Cisco uBR7225VXR uni versal broadband router components are f ield-re placeable units (FRUs). These units, un[...]

1-11 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Hardware Component Descriptions • Sending and receiving routing protocol updates • Managing tables, caches, and buf fers • Monitoring interf ace and en vironmental status • Providi ng Simple Network Man agement Prot[...]

1-12 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions – Cisco uBR7200-NPE-G2—SDRAM: 1 GB (def ault) and 2 GB. There are two DRAM memory slots, so 1 GB of memory consists of two 5 12-MB memory SODIMMs, and 2 GB co nsists of two 1 GB memory SO[...]

1-13 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Hardware Component Descriptions Power Supplies The Cisco uBR7225VXR router is equi pped with one of the follo wing power supplies: • 300W A C-input power supply—The maximum A C-input po wer with single or dual po wer su[...]

1-14 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions Figure 1 -8 Cisco uBR7225VXR AC-Input P ower Supply Caution T o ensure ad equate airflow across the Cisco uBR7225VXR power supplies, a power supply or a power supply fi ller plate (with its a[...]

1-15 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Hardware Component Descriptions T emperature sensors on the network p rocessing engine monitor the in ternal ai r temperature and send warning messages wh en the internal air temperature approaches a specified threshold. If[...]

1-16 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions Figur e 1 -1 0 Inter nal Airflo w—T op V iew 271654 1 3 4 2 1 Power supply end 3 Cable interface line card end 2 Inlet flow 4 Exhaust air (fan side)[...]

1-17 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Hardware Component Descriptions Cisco uBR7225VXR Chassis The front of the chassi s has two slots fo r cable interface line card s and one bay for the subc hassis. See Figure 1-11 . Figur e 1 -1 1 Cisco uBR7225VXR Chassis Su[...]

1-18 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions Figure 1 -12 Cisco uBR7225VXR Subchassis and Mi dplane CompactFlash Disk The Cisco uBR7225VXR uni versal broadband router has one CompactFlash Disk slot that u ses CompactFlash Disks. The de [...]

1-19 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 1 Ci sco uBR7225VXR Overview Hardware Component Descriptions The CompactFlash Disk has controller circuitry that allows it to emulate a hard disk and automatically maps out ba d blocks and pe rforms autom atic block era sure. The Compac tFlash Disk als[...]

1-20 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 1 Cisco uBR7225VXR Overview Hardware Componen t Descriptions[...]

CH A P T E R 2-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 2 Preparing the Cisco uBR7225VXR Router for Installation This chapter describes the site re quirements for installing the Cisco u BR7225VXR uni versal broad band router and contains th e follo wing sections: • Safety Recommendations, page 2-1 •[...]

2-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Safety Recommendations • Do not wear loose clothin g, jewel ry (including ring s and ch ains), or other items that could get caught in the chassis. • For syst ems with installed A C-input po w[...]

2-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Safety Recommendations Figur e 2-1 Lif ting the Chassis (Cisco uBR7246 Router Sho wn) War ni n g T wo people are required to lift the chassis. Gra sp the chassis underneath the lo wer edge and li[...]

2-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Safety Recommendations War ni ng The telecommunications lin es must be disconnected 1) before unplugging the main pow er connector and/or 2) while the housi ng is open. Statement 89 War ni ng Befo[...]

2-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Site Requirements • Ensure that the network p rocessing engine is ful ly inserted in its chassis slot and the capti ve installation scre ws are tightened. The capti ve instal lation scre ws pre[...]

2-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Site Requirements T o provid e airflo w through the Ci sco uBR7225VXR router , cooling air is draw n in through the air intake vent on the right side of the chassis (when vie wing the router from [...]

2-7 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Required Network Information • Ensure that the network processin g engine, cable in terface line cards, any blank cable interface line cards, po wer supplies, and an y po wer supply f iller pl [...]

2-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Installation Tools • IP addresses and subnet mask s, if you are routing IP . • Dial-up access telephone numbers, usernames, and passw ords for telco return operation. • RADIUS security and a[...]

2-9 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Equipment Required to Verify Your Plant’s RF Setup Equipment Required to Verify Your Plant’s RF Setup T o verify your plant’ s RF setup, you need the follo wing: • RF spectrum analyzer ?[...]

2-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Provisioning the Ca ble Headend • One or more accessories boxes (some or all might be ship ped separately) Step 2 Check the contents of the accessories box against the “Component Checklist”[...]

2-11 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Provisioning the Cable Headend Note For a V oIP system using H .323, ensu re that the CMTS has been properly pr ovisioned with equipm ent such as V oIP gateways and gatek eepers. For SGCP-bas ed[...]

2-12 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Provisioning the Ca ble Headend DHCP, DNS, TFTP, and TD Servers A DHCP server must be installed at the head end. Th e DHCP server must also of fer a time-of-day (TD) server optio n that is compli[...]

2-13 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Provisioning the Cable Headend Figur e 2-2 Servers on an HFC Netw or k Authentication, Authorization, and Accounting Servers Authentication, auth orization, and accounting (AAA) serv ers are ess[...]

2-14 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Provisioning the Ca ble Headend Headend Wiring This section pro vides guidelines for sett ing up the headend wiring and cabli ng at your site. When planning the locati on of the ne w system, cons[...]

2-15 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Provisioning the Cable Headend • Any additio nal interface equipment you need, such as transcei vers, hubs, switches, modems, channel service units (CSUs), or data service units (DSUs) • Cab[...]

2-16 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Provisioning the Ca ble Headend Figur e 2-3 Cisco uBR7225VXR Rout er Footpr int and Out er Dimensions (V iew from T op Looking Down) Note W e recommend the rear bracket mounting system for f our-[...]

2-17 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 2 Preparing the Ci sco uBR7225VXR Router for Installation Site Preparation Checklist • Install and use the cable-management bracket in cluded with the Ci sco uBR7225VXR rack-mount kit to keep cables o rganized. Cons ider the equipment and cabling tha[...]

2-18 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 2 Preparing the Cisco uBR7225VXR Router for Installation Component Checklists Component Checklists • Check of f the equipment as it is unpacked. • T itles and quantities of documents will v ary . T able 2-3 prov ides the list to v erify the conten [...]

CH A P T E R 3-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 3 Installing the Cisco uBR7225VXR Router This chapter e xplains ho w to install and connect a Cisco uBR7225VXR uni versal broadband r outer and contains the follo wing sections: • Cisco uBR7225VXR Router Installation Checklist, p age 3-1 • Cisc[...]

3-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Cisco uBR7225VX R Router C hassis Rack-Mo unting Options Cisco uBR7225VXR Router Chassis Rack-Mounting Options The chassis mounts to two rack posts with brackets that atta ch to either the front, middle, or rear [...]

3-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Cisco uBR7225VXR Router Chassi s Rack-Mounting Options Figur e 3-1 T ypical 4-P ost Equipmen t Rack P osts and Mounting Str ips Mounting options are as fol lo ws: • If you want the cable interface lin e card e[...]

3-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Cisco uBR7225VX R Router C hassis Rack-Mo unting Options Figur e 3-2 Installing t he Chassis in a 4-P ost Rack—R ear Installat ion See the “Installing Rack-Mount Br ackets on the Rear of th e Chassis” secti[...]

3-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Cisco uBR7225VXR Router Chassi s Rack-Mounting Options Figur e 3-4 Installing the Chassi s in a 4-P ost Rack—Chassis Pr otr uding Front Installation See the “Installing Rack-Mount Br ackets in the Middle of [...]

3-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Cisco uBR7225VX R Router C hassis Rack-Mo unting Options In the second conf iguration, for a telco-type rack, th e rack-mount brackets are installed at t he middle of the chassis and the cable-mana gemen t bracke[...]

3-7 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Installing t he Brackets on the Chassis Installing the Brackets on the Chassis This section e xplains ho w to install the rack-m ount brackets and cable-management bracket on a Cisco uBR7225VXR uni versal broadb[...]

3-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Installing the Bracke ts on the Chassis Step 6 Thread two M3 x 6-mm Phillips panhead scre ws through the cable-management bracket and in to the chassis, and tighten the screws. This completes the procedure for in[...]

3-9 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Installing t he Brackets on the Chassis Figure 3-1 0 Installing the Rack-Mount Br ack ets so the Fr o nt of the Chassis Protr udes Out of the Rack Step 3 Thread four M4 x 6-mm Phill ips flathead scre ws through [...]

3-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Installing the Bracke ts on the Chassis Figur e 3-1 1 Installing the Rack-Mo unt Brac kets in th e Middle of the Chassis f or T elco-T ype Rack s Step 3 Thread four M4 x 6-mm Phill ips flathead scre ws through t[...]

3-11 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Installing t he Brackets on the Chassis Caution Because the brackets sup port the weight of the entire chassis, be sure to use all o f the required slotted scre ws to fasten the two rack-mo unt brackets to the [...]

3-12 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Installing the Chassis in a Workbench or Tabletop Environment Step 6 Insert the 10 /32 x 3/8 slotted scre ws (two to a side) thro ugh the bracket s and into the mounting strip (use the top and bott om bracket ho[...]

3-13 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Cabling Step 3 Add the f ive ru bber feet supplied wi th the accessory ki t to the base of the chassis. Fi ve indented circles are provided on the base of the ch assis to indicate the l ocation to which the rub[...]

3-14 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Console and Auxiliary Port Connection Equipment Caution T o comply with GR-1089-Core in tra-buildi ng lightning-immunit y requirements, you must use shielded (screened) cable that is grounded at both ends. Conne[...]

3-15 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Console and Auxilia ry Po rt Connectio n Equipment Before connecting a ter minal to the console port, conf igure the terminal to match the Cisco uBR7225VXR router console port as foll ows: • 9600 baud • 8 d[...]

3-16 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Protective Grounding Protective Grounding The building installati on should pr ovide a means for connection to the protecti ve earth grounding. The equipment should be conn ected to that means. Note The uBR7225V[...]

3-17 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Connecting Power War ni n g Before working on equipme nt that is connected to power line s, remove jewelry (including rings, necklaces, and watches). Met al objects will heat up when conn ected to power and gro[...]

3-18 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Powering On the Cisco uBR 7225VXR Router Figure 3-14 Connecting AC-Input P ow er Step 3 Plug the A C power supp ly cable into the A C power sou rce. Step 4 Repeat Step 1 thro ugh Step 3 for the second po wer sup[...]

3-19 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 3 Installing the Cisco u BR7225VXR Router Configuring the Interfaces Note If the cable interface l ine card or the network processing engine is not proper ly seated or not fully lock ed into place, the Cisco uBR7225VXR ro uter might enter a continuous [...]

3-20 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 3 Installing the Cisco uBR7225VXR Router Configuring the Interfac es At any point you may enter a questions mark ‘?’ for help. Use ctrl-c to abort configuration dialof at any prompt. Default settings are in square brackets ‘[]’. continue with c[...]

CH A P T E R 4-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 4 Connecting the Cisco uBR 7225VXR Router to the Cable Headend This chapter describe s how to connect the Cisco uBR7 225VXR universal broadband router to a cable headend and contains th e following sections: • T wo-W ay Dat a Headend Architecture[...]

4-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Two-Way Data Headen d Architecture Two-Way Data Headend Architecture Figure 4-1 sho ws a typical headend conf iguration conf igured for two-way data, includin g digitized v oice and fax. Figu[...]

4-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend One-Way Data Headend Arc hitecture One-Way Data Headend Architecture Figure 4-2 sho ws a typical he aden d configuration configured f or one-way (do wnstream) data in a telco return cable s[...]

4-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Connecting an d Configuring the Do wnstream • Noise funneling—The upstream dat a path to the headend is suscept ible to picking up noise and interference from anywhere in th e net work, a[...]

4-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l These two sections describe the procedures necessa ry to us e a spectrum analyzer . Y ou may also use a signal le vel meter that has the abi lity to meas[...]

4-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figur e 4-3 Viewing the Do wnstr eam IF Signal on a Spectr um Analyzer Step 5 Measure the IF signal using the channel power op tion on your spectrum analyz[...]

4-7 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Figure 4-5 Measur ing the IF Chan nel Po wer Using V ideo A veragin g Note The approximate in-channel peak-to-v alley flatness may be v erified using the[...]

4-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figure 4-6 Over loaded Spectr um Analyzer Inpu t Step 4 Set the input of the upco n verter to a digital QAM signal an d the output le vel to the manufactur[...]

4-9 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Figur e 4-8 Measur ing the RF Sign al at the Upcon ver ter Output —Ov e r load Condition Cor recte d with Att enua tion Step 7 Change the spectrum anal[...]

4-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figure 4-1 0 Measuring the RF Signal at the Upcon vert er Output—O utput Adjusted to Cor rect Range Step 9 Select the video averaging feat ure on the sp[...]

4-11 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Step 10 V erify that your headend RF measurements meet the recommended DOCSIS parameters listed in the tables in Appendix B, “RF Spec ifications. ” [...]

4-12 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figure 4-12 V iewing the Downstream IF Signal on a Spectr um Analyzer in CA TV Mode—Initial Scr een Step 4 Adv ance to the last of the three screens in [...]

4-13 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Figure 4-14 Measur ing the IF Signal on a Spectr um Analyz er in CA TV Mode—Digital Channel P ower Scr een Step 6 Using the spectrum analyzer’ s ref[...]

4-14 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figure 4-16 Measur ing the IF Signal on a Spectr um Analyz er in CA T V Mode—Dig ital Channel P ower Screen (Using Video A veraging) Note The approximat[...]

4-15 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Figure 4-1 7 V iewing t he Downstr eam RF Signal on a Spectr um An alyz er in CA TV Mode—I nitial Scr een Step 7 Adv ance to the last of the three scr[...]

4-16 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Downstream RF Sig nal Figure 4-1 9 Measur ing the RF Signal at the Upconver ter Outp u t in CA TV Mode—Digital Channel P ower Scr een Step 9 Using the spectrum analyzer’ s [...]

4-17 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Downstream RF Signa l Figure 4-21 Measur ing the RF Signal at the Upconver ter Outp ut in CA TV Mode—D igital Chan nel P ower Scr een Using Video A ver aging Note The appro[...]

4-18 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Connecting and Con figuring the Upstre am Connecting and Configuring the Upstream The follo wing sections describe ho w to connect and configure the upstr eam for dig ital data. Connecting t[...]

4-19 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Connecting and Configuring the Upstream Figur e 4-22 Connecting and Configur ing the Upstr eam Testing the Upstream Configuration T o test the upst ream config uration, insert a test si gn[...]

4-20 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Connecting and Con figuring the Upstre am This “X-le vel” test poin t measurement will be dif ferent for ev ery fiber node in the HFC network un til you adjust the attenuation on the ups[...]

4-21 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Connecting and Configuring the Upstream Figur e 4-25 Calibrati ng Multiple “X-lev el” T est P oints Connected t o Multiple Upstream P orts Cisco uBR7225VXR Downstream 271678 Upstream 0[...]

4-22 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Measuring the Upstream RF Signal Y ou can use a spectrum anal yzer to measure the upstream signal from one or more remote cable modems in a two-w ay data cab[...]

4-23 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figure 4-26 Me asur ing th e Upstream RF Signal—Set ting th e Resolution an d Video Channel Bandwidth Ti p The hori zontal line passi ng through th e ce [...]

4-24 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Note Refer to the docum entation that accompa nied your part icular spectrum analyzer for detailed instructions on acti v ating and positioning th e trigger [...]

4-25 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Step 10 V erify that your headend RF measurements meet the recommended DOCSIS parameters listed in the tables in Appendix B, “RF Spec ifications. ” Ste[...]

4-26 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figure 4-30 Analy zin g the Upstream RF Signal —1500-Byte D ata P ack ets Note Both of the pre vious examples feature 16-QAM transmission with a channel wi[...]

4-27 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figure 4-31 Analyzin g the Upstream RF Sign al—Mu ltiple Activ e Remote Cable Modems (A) Figure 4-32 Analyzin g the Upstream RF Sign al—Mu ltiple Activ[...]

4-28 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal The importance of this e xample is to bring to your attention the need fo r minimal outside plant no ise. T ime-varying, fast noi se can cause bit errors in [...]

4-29 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Step 1 Display a signal complete with preamble and upstream data transmission informatio n similar to the resulting signal from Step 3 through Step 10 unde[...]

4-30 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figur e 4-35 V ector Signal Analyzer Plot of Upstr eam Data Burst The upper graph in Figure 4-35 represents the frequenc y domain and the lo wer graph repres[...]

4-31 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figur e 4-36 V ector Signal Analyzer Plot of Upstream Data Burst (Pr eamble Only) Figure 4-35 and Figure 4-36 illustrate the b enefit of properly adjusting[...]

4-32 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figur e 4-37 V ector Signal Analyzer Plot of Upstr eam Data Burst (Pr eamble Only)—QPSK Demodulation M ode d. Switch your v ector signal analyzer ov er to [...]

4-33 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figur e 4-38 V ector Signal Analyzer Plot of Upstr eam Data Burst (Pr eamble Only)—Digital Demodulation M ode Note Before moving o n to Step 3 , be sure [...]

4-34 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figure 4-39 Pr eamble Amplitude Befor e Center F r equency Adjustment Note The slight amplitude v ariations shown in these figu res are normal signal lev el [...]

4-35 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Figure 4-40 Pr eamble Amplitude Recov ery Aft er Center F r equency A djustment T o get an e ven better l ook at the patterns an d dramatic sh ifts in ampl[...]

4-36 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the Upstream RF Signal Note The 4.25 dB decrease in amplit ude is due to a comb ination of half of the ch annel bandwi dth (3 dB) and an additional 1.25 dB decrease attributed to t[...]

4-37 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the RF Signal at the Forw ard Test Point on a Laser Transmitter Note The slight “ramp-up” at the be ginning of the preamble when vie wed in this mode is attrib uted to the ti[...]

4-38 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Measuring the RF Signal at the Forw ard Test Point on a Las er Transmitter Figure 4-45 Downstr eam Forward T est P oint on the Laser T ransmitt er—Video Channel Display Step 3 Select the c[...]

4-39 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Measuring the RF Signal at the Forw ard Test Point on a Laser Transmitter Figure 4-47 Downstr e am Forw ard T est P oint on the Laser T ransmit ter—Digital Channel Displa y Step 6 Go to [...]

4-40 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Configuring the Digital Signal Step 8 Select the video av eraging feature to verify flatne ss through the headend combiner . After 10 averages, the po wer rating decreases by approx imately [...]

4-41 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 4 Connecting the Cisc o uBR 7225VXR Router to the Cable Headend Configuring the Digital Signal Careful system design and operation can pre vent po tentially serious intermit tent performance problems across your cable interface network. Each cable oper[...]

4-42 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 4 Connecting the Cisco uBR7225VXR Router to the Cable Headend Configuring the Digital Signal[...]

CH A P T E R 5-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 5 Maintaining the Cisco uBR7225VXR Router This chapter describes basic main tenance for the Cisco uBR7225VXR uni versal broadband router an d contains the follo wing sections: • Online Insertion and Remo val, page 5-1 • En v ironmental Monitori[...]

5-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 5 Maintaining the Cisco uBR7225VXR Router Environmental Monitorin g and Reporting Functions Caution The network processing engi ne cannot be remov ed if the router is operating. Removing the n etwork processing engine while the Cisco uBR7225VXR router i[...]

5-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 5 Maintain ing the Cisco uBR7225VXR Router Environmental Monitoring and Repo rting Functions • Shutdo wn—The processor has detected a temperature condition that could result in physical damage to system components and has disabled DC po we r to all [...]

5-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 5 Maintaining the Cisco uBR7225VXR Router Environmental Monitorin g and Reporting Functions Caution T o prev ent overheating the chassis, ensure that your system is draw ing cool inlet air . Overtemperature conditions can occur if t he system is drawing[...]

5-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 5 Maintain ing the Cisco uBR7225VXR Router Environmental Monitoring and Repo rting Functions The show en vironment table command displays the temperature and voltage thresholds for each temperature sensor and for each monitored status le ve l, which are[...]

5-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 5 Maintaining the Cisco uBR7225VXR Router Environmental Monitorin g and Reporting Functions Voltage readings: +3.30 V measured at +3.28 V +1.50 V measured at +1.49 V +2.50 V measured at +2.48 V +1.80 V measured at +1.78 V +1.20 V measured at +1.19 V VDD[...]

CH A P T E R 6-1 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 6 Troubleshooting This chapter pro vides troubleshooting information fo r the Cisco uBR7225VXR uni versal broadband router and contains th e follo wing sections: • Overvie w , page 6-1 • Problem Solving with Subsystems, pag e 6-2 • Po wer Sub[...]

6-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 6 Troubleshooting Problem Solving with Subsystems Figur e 6-1 T roublesh ooting Str ateg y for Star tup Pro blems Problem Solving with Subsystems Ti p Isolating a problem to a specifi c subsystem simplif ies the troubleshootin g process. The first step [...]

6-3 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 6 Troubleshooting Problem Solving with Subsystems • Cable headend subsystem—External to the Cisco uBR7225VXR router , this subsystem can pre vent operation of the uni versal broadband router if t he headend is not properly set up for the in troducti[...]

6-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 6 Troubleshooting Power Subsystem Power Subsystem Check the follo wing to help isolate a problem with the po wer subsystem: Step 1 T oggle the po wer supply switch off and on. Step 2 On the f irst po wer supply , is the Input OK LED on? a. If yes, the p[...]

6-5 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 6 Troubleshooting Processor Subsystem T o determine if the fans are operating, listen for them. In n oisy en vironments, plac e your hand on the left side of the chassis (when viewing the chassis from the front) to feel for ai r being forced out the ve [...]

6-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 6 Troubleshooting Processor Subsystem b. Reseat the network pr ocessing engine in its slot. c. Restart th e router . Step 2 V erify that you are runnin g a version of Cisco IO S software that supports th e NPE you are using: a. For the latest Cisco IOS [...]

6-7 Cisco uBR7225VXR Universal Broadband Router Hardware Installation Gu ide OL-17309-02 Chapter 6 Troubleshooting Verifying the Downstream Signal Other Troubleshooting Information Websites These websites are prov ided to help you f ind the most current troubleshooting info rmation: • Search the Cisco T A C assistance website, a t the follo wing [...]

6-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Chapter 6 Troubleshooting Verifying the Downstream Signal snr_estimate 352(TenthdB), ber_estimate 0, lock_threshold 26000 QAM in lock, FEC in lock, qam_mode QAM_64 This shows a do wnstre am frequen cy of 555 MHz, 64-QAM do wnstream, and an SNR estimate of 35.2 [...]

A-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX A Cisco uBR7225VXR Router Specifications This appendix pro vides information on the Cisco uBR7225VXR uni versal broadb and router physical and system specifications. Cisco uBR7225VXR Physical and System Specifications Ta b l e A - 1 lists the Cisco uBR[...]

A-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix A Cisco uBR7225VXR Router Specifications Cisco uBR7225VXR Physical and System Specifications Cisco IOS Release 12.2(33)SCA and later rel eases Agency approval Saf ety: UL/C SA/IEC/E N 60950-1; A S/NZS6095 0 EMI: FCC Class A, CSA C lass A, EN6055 5-2, E[...]

B-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX B RF Specifications Information in the follo wing tabl es is from the DO CSIS and Euro DOCSIS Radio Frequency Interface Specif ication, and should be consid ered minimum recommended performance criteria for reliable data transmission on cable netw orks[...]

B-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix B RF Specifications DOCSIS 1.0 Transmission Characteristics DOCSIS 1.0 Transmission Characteristics The follo wing tables pro vide information on the assumed d ownstream RF chan nel transmission characteristics for DOCSIS 1.0. Downstream RF Channel Tra[...]

B-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix B RF Specification s DOCSIS 1.0 Transmission Char acteristics Upstream RF Channel Transmission Characteristics T ransmission is from the cable modem output at th e customer location to the headend. Measurement methods are def ined in NCT A or CableLabs[...]

B-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix B RF Specifications DOCSIS 1.1 Transmission Characteristics DOCSIS 1.1 Transmission Characteristics The follo wing tables pro vide information on the assumed d ownstream RF chan nel transmission characteristics for DOCSIS 1.1. Downstream RF Channel Tra[...]

B-5 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix B RF Specification s EuroDOCSIS Transmission Characteristics Upstream RF Channel Transmission Characteristics T ransmission is from the cable modem output at th e customer location to the headend. Measurement methods are def ined in NCT A or CableLabs2[...]

B-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix B RF Specifications EuroDOCSIS Transmission Character istics Downstream RF Channel Transmission Characteristics T ransmission is from the headend combiner to th e cable modem input at the customer location. Measurement methods are def ined in CENELEC 5[...]

B-7 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix B RF Specification s EuroDOCSIS Transmission Characteristics Upstream RF Channel Transmission Characteristics T r ansmission is from the cable modem output at the customer location to the headend. 3. For hum measurements above the normal dow nstream op[...]

B-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix B RF Specifications Electrical Input and Output Electrical Input and Output The information in Ta b l e B - 9 and Ta b l e B - 1 0 relates to both DOCSIS a nd EuroDOCSIS specif ications. T able B-9 Electr ical Input t o the Cable Modem Parameter V alue[...]

B-9 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix B RF Specification s Electrical Input and Output Bandwidth 200 kHz 400 kHz 800 kHz 1600 kHz 3200 kHz Output impedance 75 ohms Output return loss • DOCSIS: > 6 dB (5–42 MHz) • EuroDOCSIS: > 6 dB (5–65 MHz) Connector F connector per ISO-1 6[...]

B-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix B RF Specifications Electrical Input and Output[...]

C-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX C Cable Specifications This appendix contains cable an d ca ble pinout info rmation for the Ci sco uBR7225V XR univ ersal broadband router . • Coaxial Ca bles, page C- 1 • Console and Auxiliary Port Cables and Pinouts, page C- 2 • Fast Ethern et [...]

C-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix C Cable Specifications Console and Auxiliary Po rt Cables and Pinouts If you use dif ferent types of coaxial cable, the follo wing problems can appear: • Damage to Cisco uBR7225VXR cable in terface line card conn ectors—Cable interf ace line card c[...]

C-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix C Cable Specifications Console and Auxiliary Po rt Cables a nd Pinouts Figure C-2 RJ-45 Rollov er Cable Iden tification The colored wires at one connector are in the rev erse order at the other connector (re verses pins 1 and 8, 2 and 7, 3 and 6, 4 and[...]

C-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix C Cable Specifications Fast Ethernet Port Cab les and Pinouts Auxiliary Port Cables and Pinouts Use the RJ-45-to-RJ-45 rollov er cable and RJ-45- to-DB-25 male DCE adapte r (labeled MODEM) to connect the auxiliary port to a modem. Ta b l e C - 2 lists [...]

C-5 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix C Cable Specifications Fast Ethernet Port Cables and Pinouts Figure C-3 RJ-45 Crosso ver Cable Ident ification Identifying an RJ-45 Straight-Through Cable Y ou can identify a straight-throu gh cable b y comparing the two modular ends of the cable. Hol [...]

C-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix C Cable Specifications Fiber-Optic Cables a nd Connectors Fiber-Optic Cables and Connectors War ni ng Because invisible radiation may be emitted from the apertu re of the port when no fiber cable is connected, avoid exposure to radiation and do not sta[...]

D-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX D Industry-Standard Wiring Plans About Wiring Standards In a traditional cable headend, a l arge number of wires conn ect the various components of the headend system. T o or ganize the many w ires, some cable operators use color -coding on the wire ja[...]

D-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix D Industry-Stand ard Wiring Plans Optical Fiber Color Codes TIA/EIA Standards Information A number of Electr onic Industries Alli ance (EIA) and T elecommunications Industry Associ ation (TIA) standards are applicable to wiring. Follo wing is a list of[...]

D-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix D Industry-Standard Wi ring Plans Telephone Wire Colo r Codes Telephone Wire Color Codes T o help simplify wire management, A T&T has devise d a uni form scheme for dealing with larg e numbers of wires for the telephone in dustry . The scheme us e [...]

D-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix D Industry-Stand ard Wiring Plans Telephone Wire Color Codes Cables with more than 25 pairs of wires are co nstructed from 25-pair groups. V ery large cables ha ve other v ariations generally not encount ered inside terminal wire plant s. 91R e d B r o[...]

D-5 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix D Industry-Standard Wi ring Plans Telephone Wire Colo r Codes For small wir ing groups, such as wires for an indiv idual telephone station or t erminal, you may use a second color -code scheme. Ta b l e D - 2 lists this color code and th e usual corres[...]

D-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix D Industry-Stand ard Wiring Plans Telephone Wire Color Codes[...]

E-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX E Frequency Allocation Tables This appendix pro vides information on broad cast and cable television NTSC and P AL/SECAM standards and frequencies used around th e world. There are three standards for transmit ting video. They are defined b y the metho[...]

E-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles Standards Co mparisons Standards Comparisons The follo wing tables ( Ta b l e E - 1 , Ta b l e E - 2 , and Ta b l e E - 3 ) include data from Recommendation ITU-R BT .470.6, Con ventional T ele vision Systems (1 998) and [...]

E-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables NTSC Cable Television Channels and Relative Frequencie s NTSC Cable Television Channels and Relative Frequencies Ta b l e E - 4 provides infor mation on the NTSC fr equency map for standard 6-MHz channels in North, Central[...]

E-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles NTSC Cable Television Ch annels and Relative Frequ encies 8 8 180.0-186.0 181.25 183.0 185.75 181.2625 185.7625 180.0090 184.5090 9 9 186.0-192.0 187.25 189.0 191.75 187.2625 191.7625 186.0093 190.5093 10 10 192.0-198.0 1[...]

E-5 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables NTSC Cable Television Channels and Relative Frequencie s PP 52 2 390.0-396.0 39 1.25 393.0 395.75 391.2625 395.76 25 390.0195 394.5195 QQ 53 2 396.0-402.0 39 7.25 399.0 401.75 397.2625 401 .7625 396.0198 400.5198 RR 54 402[...]

E-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles NTSC Cable Television Ch annels and Relative Frequ encies 87 600.0-606.0 601.25 603.0 605.75 601.2625 605.7625 600.0300 604.5300 88 606.0-612.0 607.25 609.0 611.75 607.2625 611.7625 606.0303 610.5303 89 612.0-618.0 613.25[...]

E-7 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables NTSC Cable Television Channels and Relative Frequencie s 127 810.0-816.0 811.25 813.0 815.75 811.2625 815.7625 810.0405 814.5405 128 816.0-822.0 817.25 819.0 821.75 817.2625 821.7625 816.0408 820.5408 129 822.0-828.0 823.2[...]

E-8 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles NTSC (M) Cable Television Fre quencies for Japan NTSC (M) Cable Television Frequencies for Japan Japan uses NTSC (M) but has dif ferent channel assignments. See Ta b l e E - 5 . T able E-5 Japanese Channel Assignment s Ch[...]

E-9 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables NTSC (M) Cable T elevision Frequencies for Japan C33 282.0-288.0 283.25 285.00 287.75 C34 288.0-294.0 289.25 291.00 293.75 C35 294.0-300.0 295.25 297.00 299.75 C36 300.0-306.0 301.25 303.00 305.75 C37 306.0-312.0 307.25 30[...]

E-10 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles PAL/SECAM Cable Television Chann els and Relative Frequencies PAL/SECAM Cable Television Channels and Relative Frequencies Ta b l e E - 6 provides informat ion on the Phase Alternat ing Li ne (P AL) and SEquential Couleu[...]

E-11 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables PAL/SECAM Cable Television Chann els and Relative Frequencies S12 237.0-244.0 238.25 243.75 S13 244.0-251.0 245.25 250.75 S14 251.0-258.0 252.25 257.75 S15 258.0-265.0 259.25 264.75 S16 265.0-272.0 266.25 271.75 S17 272.0[...]

E-12 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles PAL/SECAM Cable Television Chann els and Relative Frequencies 26 510.0-518.0 511 .25 516.75 27 518.0-526.0 519 .25 524.75 28 526.0-534.0 527 .25 532.75 29 534.0-542.0 535 .25 540.75 30 542.0-550.0 543 .25 548.75 31 550.0[...]

E-13 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix E Frequency Allocation Tables PAL/SECAM Cable Television Chann els and Relative Frequencies 61 790.0-798.0 791 .25 796.75 62 798.0-806.0 799 .25 804.75 63 806.0-814.0 807 .25 812.75 64 814.0-822.0 815 .25 820.75 65 822.0-830.0 823 .25 828.75 66 830.0-[...]

E-14 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix E Frequency Allocation Ta bles PAL/SECAM Cable Television Chann els and Relative Frequencies[...]

F-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX F Manufacturers for Headend Provisioning Requirements Ta b l e F - 1 and Ta b l e F - 2 provide information on so me of the manufact urers, websites, and product of ferings required to prepar e and provisio n a Nort h American cable headend site for tw[...]

F-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix F Manu facturers for Headend Provision ing Requirements North American Ch annel Plans In addition, we recommend the follo wing manuf actur ers, websites, and product of ferings for vari ous measurement de vices you will need to prepare and pr ovision a[...]

F-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 Appendix F Manufacturers for Headend Provisioning Requirements European Channel Plans European Channel Plans T ab le F-3 Ma nuf a ctur ers for European Headend Pro visioning Requ ir ements Manufacturer Website or Phone Number Products/Model Diplex Filters Eagle[...]

F-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix F Manu facturers for Headend Provision ing Requirements European Chann el Plans In addition, we recommend the follo wing manuf actur ers, websites, and product of ferings for vari ous measurement de vices you will need to prepare and pr ovision a Europ[...]

G-1 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 APPENDIX G Site Log A site log pro vides a historic al record of all ac tions rele vant to the Cisco uBR7225VXR uni versal broadband router operation and maintenance. Keep your site log in a common place near the chassis where anyone who p erforms tasks has acc[...]

G-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 Appendix G Site Lo g T able G-1 Site Lo g Date Description of Action Performed or Symptom Observed Initials[...]

GL-1 Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 GLOSSARY S ymbols 10Base-T 10 -Mbps baseband Ethernet specif ication using two pair s of twisted-pair cabling (Cate gory 3, 4, or 5): one pair for transmitting data and the other for rece i ving data. 10Base-T , which is part of the IEEE 802.3 specif icatio[...]

Glossary GL-2 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 B BER Bit error rate. C CATV Cable tele vision. References to headend or dist ribution hu b . CCS Common channel sign aling. CES Circuit emulation ser vice. Chrominance The color portion of a video signal. CMTS Cable modem termination system, such as [...]

Glossar y GL-3 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 DSU Data Service Unit. De vice used in digital transmi ssion that adapts the phys ical interf ace on a DTE de vice to a transmission fa cility such as T1 or E1 . The DSU is also responsible for such functions as signal timing. Often used with CSU, as[...]

Glossary GL-4 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 HDLC High-Le vel Data Link Co ntrol. HFC Hybrid f iber-coaxial . HSSI High-Speed Serial Interface. I IEC International Electr otechnical Commission. IEEE 802.3 IEEE LAN protocol that sp ecifies an implementation of the physical layer an d the MA C sub[...]

Glossar y GL-5 Cisco uBR7225VXR Universal Broadband Ro uter Hardware Installation Guide OL-17309-02 NTSC National T elev ision System Committee. NVRAM Non volatile random-access memory . O OIR Online insertion and remo v al. P PAL Phase alternating line. PCI Protocol control inf ormation. Q QAM Quadrature amplitude mo dulation. A modulation t e chn[...]

Glossary GL-6 Cisco uBR7225VXR Universal Broadband Router Hardware Instal lation Guide OL-17309-02 T T1 Digital W AN carrier facility . T1 transmits DS1-formatted d ata at 1.544 Mbps through the telephon e switching network. TAC T echnical Assista nce Center . ToD T ime of day . TFTP T ri vial File T ransfer Protocol. U UBR Uni versal broadband ro [...]

IN-1 Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 INDEX A AAA server 2-13 access server 2-12 adapter pinouts C-3 addresses, MAC 1-5 air exhaust 5-4 airflow 1-16, 2-16 attenuator manufacturers F-1, F-3 authorization, authentication, and accounting server, see AAA server auxiliary port C-3 auxiliary port, p [...]

Index IN-2 Cisco uBR7225VXR Universal Broadband Router Hardw are Installation Guide OL-17309-02 clearance, for air circulation 2-16 clipping 4-4 coaxial jumper manufacturers F-1, F-3 color codes optical fiber D-2 small wiring groups D-5 telepho ne wire D-3 commands show environm ent 2-6, 5-3, 5-5 configuration tools 1-7 configuring digital data 4-1[...]

Index IN-3 Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 fiber-optic laser receivers 2-11 field noti ces 6-7 field-replaceable units, see FRU s 1-10 flash memory card replacement instructions 1-12 frequency allocatio n NTSC E-1 NTSC (M) E-8 NTSC standards E-3 PAL standard E-10 related websites E-1 SECAM sta[...]

Index IN-4 Cisco uBR7225VXR Universal Broadband Router Hardw are Installation Guide OL-17309-02 K kits 2-8 L LEDs cable interface line cards 6-6 enabled 3-19 power subsystem 6-4 power supply 6-3 lifting the chassis 2-2 lightning st orm, safety during 2-4 M MAC addresses 1-4, 1-5 Means i-xi measuring amplitude 4-26 messages 2-6 messages, environment[...]

Index IN-5 Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 emergency power-off switch 2-3 subsystem, for troubleshooting 6-2 surge suppression 2-14 ungrounded 2-3 power connecti ons AC power 3-17 overview 3-16 power factor corrector, power supply 2-5 power rating 4-39, 4-40 power supply 1-1 LEDs 6-3 physical [...]

Index IN-6 Cisco uBR7225VXR Universal Broadband Router Hardw are Installation Guide OL-17309-02 environment 2-5 equipment racks 2-15 general p recaution s 2-6 plant wiring 2-14 power considerations 2-7 slot/port number s for interfaces 1-4 SNMP, management 1-11 specifications A-1 spectrum analyzer, using CATV mode option 4-11 channel power option 4[...]

Index IN-7 Cisco uBR7225VXR Universal Broadband Ro uter Hard ware Install ation Guid e OL-17309-02 grounded equipmen t 3-17 installati on 3-16 jewelry removal 3-17 lightn ing activ ity 2-4 power supply disconnecti on 2-4 product disposal 2-2 qualified personnel 2-2 safety precautions 3-10 service personnel 2-2 stacking the chassis 3-12 supply circu[...]

Index IN-8 Cisco uBR7225VXR Universal Broadband Router Hardw are Installation Guide OL-17309-02[...]