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Manual Cisco Systems uBR7225VXR

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  • Cisco Systems uBR7225VXR - page 1

    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 ...

  • Cisco Systems uBR7225VXR - page 2

    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 ...

  • Cisco Systems uBR7225VXR - page 3

    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 ...

  • Cisco Systems uBR7225VXR - page 4

    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 ...

  • Cisco Systems uBR7225VXR - page 5

    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 ...

  • Cisco Systems uBR7225VXR - page 6

    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 ...

  • Cisco Systems uBR7225VXR - page 7

    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 ...

  • Cisco Systems uBR7225VXR - page 8

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

  • Cisco Systems uBR7225VXR - page 9

    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 ...

  • Cisco Systems uBR7225VXR - page 10

    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 ...

  • Cisco Systems uBR7225VXR - page 11

    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 ...

  • Cisco Systems uBR7225VXR - page 12

    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 ...

  • Cisco Systems uBR7225VXR - page 13

    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 ...

  • Cisco Systems uBR7225VXR - page 14

    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 ...

  • Cisco Systems uBR7225VXR - page 15

    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 ...

  • Cisco Systems uBR7225VXR - page 16

    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 ...

  • Cisco Systems uBR7225VXR - page 17

    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 ...

  • Cisco Systems uBR7225VXR - page 18

    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 ...

  • Cisco Systems uBR7225VXR - page 19

    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 ...

  • Cisco Systems uBR7225VXR - page 20

    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 ...

  • Cisco Systems uBR7225VXR - page 21

    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 ...

  • Cisco Systems uBR7225VXR - page 22

    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 ...

  • Cisco Systems uBR7225VXR - page 23

    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 ...

  • Cisco Systems uBR7225VXR - page 24

    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 ...

  • Cisco Systems uBR7225VXR - page 25

    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 ...

  • Cisco Systems uBR7225VXR - page 26

    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 ...

  • Cisco Systems uBR7225VXR - page 27

    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 ...

  • Cisco Systems uBR7225VXR - page 28

    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) ...

  • Cisco Systems uBR7225VXR - page 29

    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 ...

  • Cisco Systems uBR7225VXR - page 30

    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 ...

  • Cisco Systems uBR7225VXR - page 31

    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 ...

  • Cisco Systems uBR7225VXR - page 32

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

  • Cisco Systems uBR7225VXR - page 33

    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 • ...

  • Cisco Systems uBR7225VXR - page 34

    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 ...

  • Cisco Systems uBR7225VXR - page 35

    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 ...

  • Cisco Systems uBR7225VXR - page 36

    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 ...

  • Cisco Systems uBR7225VXR - page 37

    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 ...

  • Cisco Systems uBR7225VXR - page 38

    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 ...

  • Cisco Systems uBR7225VXR - page 39

    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 ...

  • Cisco Systems uBR7225VXR - page 40

    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 ...

  • Cisco Systems uBR7225VXR - page 41

    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 ? ...

  • Cisco Systems uBR7225VXR - page 42

    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” ...

  • Cisco Systems uBR7225VXR - page 43

    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 ...

  • Cisco Systems uBR7225VXR - page 44

    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 ...

  • Cisco Systems uBR7225VXR - page 45

    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 ...

  • Cisco Systems uBR7225VXR - page 46

    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 ...

  • Cisco Systems uBR7225VXR - page 47

    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 ...

  • Cisco Systems uBR7225VXR - page 48

    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- ...

  • Cisco Systems uBR7225VXR - page 49

    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 ...

  • Cisco Systems uBR7225VXR - page 50

    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 ...

  • Cisco Systems uBR7225VXR - page 51

    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 ...

  • Cisco Systems uBR7225VXR - page 52

    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 ...

  • Cisco Systems uBR7225VXR - page 53

    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 ...

  • Cisco Systems uBR7225VXR - page 54

    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 ...

  • Cisco Systems uBR7225VXR - page 55

    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 ...

  • Cisco Systems uBR7225VXR - page 56

    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 ...

  • Cisco Systems uBR7225VXR - page 57

    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 ...

  • Cisco Systems uBR7225VXR - page 58

    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 ...

  • Cisco Systems uBR7225VXR - page 59

    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 ...

  • Cisco Systems uBR7225VXR - page 60

    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 ...

  • Cisco Systems uBR7225VXR - page 61

    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 ...

  • Cisco Systems uBR7225VXR - page 62

    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 ...

  • Cisco Systems uBR7225VXR - page 63

    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 ...

  • Cisco Systems uBR7225VXR - page 64

    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 ...

  • Cisco Systems uBR7225VXR - page 65

    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 ...

  • Cisco Systems uBR7225VXR - page 66

    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 ...

  • Cisco Systems uBR7225VXR - page 67

    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 ...

  • Cisco Systems uBR7225VXR - page 68

    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 ...

  • Cisco Systems uBR7225VXR - page 69

    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 ...

  • Cisco Systems uBR7225VXR - page 70

    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 ...

  • Cisco Systems uBR7225VXR - page 71

    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 ...

  • Cisco Systems uBR7225VXR - page 72

    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 ...

  • Cisco Systems uBR7225VXR - page 73

    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 ...

  • Cisco Systems uBR7225VXR - page 74

    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 ...

  • Cisco Systems uBR7225VXR - page 75

    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 ...

  • Cisco Systems uBR7225VXR - page 76

    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 ...

  • Cisco Systems uBR7225VXR - page 77

    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 ...

  • Cisco Systems uBR7225VXR - page 78

    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 ...

  • Cisco Systems uBR7225VXR - page 79

    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 ...

  • Cisco Systems uBR7225VXR - page 80

    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 ...

  • Cisco Systems uBR7225VXR - page 81

    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. ” ...

  • Cisco Systems uBR7225VXR - page 82

    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 ...

  • Cisco Systems uBR7225VXR - page 83

    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 ...

  • Cisco Systems uBR7225VXR - page 84

    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 ...

  • Cisco Systems uBR7225VXR - page 85

    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 ...

  • Cisco Systems uBR7225VXR - page 86

    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 ...

  • Cisco Systems uBR7225VXR - page 87

    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 ...

  • Cisco Systems uBR7225VXR - page 88

    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 ...

  • Cisco Systems uBR7225VXR - page 89

    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 ...

  • Cisco Systems uBR7225VXR - page 90

    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 ...

  • Cisco Systems uBR7225VXR - page 91

    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 ...

  • Cisco Systems uBR7225VXR - page 92

    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 ...

  • Cisco Systems uBR7225VXR - page 93

    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 ...

  • Cisco Systems uBR7225VXR - page 94

    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 ...

  • Cisco Systems uBR7225VXR - page 95

    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 ...

  • Cisco Systems uBR7225VXR - page 96

    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 ...

  • Cisco Systems uBR7225VXR - page 97

    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 ...

  • Cisco Systems uBR7225VXR - page 98

    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 ...

  • Cisco Systems uBR7225VXR - page 99

    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 ...

  • Cisco Systems uBR7225VXR - page 100

    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 ...

  • Cisco Systems uBR7225VXR - page 101

    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 ...

  • Cisco Systems uBR7225VXR - page 102

    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 ...

  • Cisco Systems uBR7225VXR - page 103

    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 ...

  • Cisco Systems uBR7225VXR - page 104

    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 ...

  • Cisco Systems uBR7225VXR - page 105

    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 ...

  • Cisco Systems uBR7225VXR - page 106

    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 ...

  • Cisco Systems uBR7225VXR - page 107

    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 ...

  • Cisco Systems uBR7225VXR - page 108

    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 ...

  • Cisco Systems uBR7225VXR - page 109

    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 ...

  • Cisco Systems uBR7225VXR - page 110

    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 ...

  • Cisco Systems uBR7225VXR - page 111

    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 ...

  • Cisco Systems uBR7225VXR - page 112

    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 ...

  • Cisco Systems uBR7225VXR - page 113

    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 ...

  • Cisco Systems uBR7225VXR - page 114

    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 ...

  • Cisco Systems uBR7225VXR - page 115

    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 ...

  • Cisco Systems uBR7225VXR - page 116

    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 ...

  • Cisco Systems uBR7225VXR - page 117

    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 ...

  • Cisco Systems uBR7225VXR - page 118

    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 ...

  • Cisco Systems uBR7225VXR - page 119

    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 ...

  • Cisco Systems uBR7225VXR - page 120

    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 ...

  • Cisco Systems uBR7225VXR - page 121

    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 ...

  • Cisco Systems uBR7225VXR - page 122

    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 ...

  • Cisco Systems uBR7225VXR - page 123

    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 ...

  • Cisco Systems uBR7225VXR - page 124

    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 ...

  • Cisco Systems uBR7225VXR - page 125

    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 ...

  • Cisco Systems uBR7225VXR - page 126

    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 ...

  • Cisco Systems uBR7225VXR - page 127

    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 ...

  • Cisco Systems uBR7225VXR - page 128

    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 ...

  • Cisco Systems uBR7225VXR - page 129

    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 ...

  • Cisco Systems uBR7225VXR - page 130

    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 ...

  • Cisco Systems uBR7225VXR - page 131

    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 ...

  • Cisco Systems uBR7225VXR - page 132

    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 ...

  • Cisco Systems uBR7225VXR - page 133

    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 ...

  • Cisco Systems uBR7225VXR - page 134

    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 ...

  • Cisco Systems uBR7225VXR - page 135

    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 ...

  • Cisco Systems uBR7225VXR - page 136

    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 ...

  • Cisco Systems uBR7225VXR - page 137

    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 ...

  • Cisco Systems uBR7225VXR - page 138

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

  • Cisco Systems uBR7225VXR - page 139

    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 ...

  • Cisco Systems uBR7225VXR - page 140

    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 ...

  • Cisco Systems uBR7225VXR - page 141

    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 ...

  • Cisco Systems uBR7225VXR - page 142

    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 ...

  • Cisco Systems uBR7225VXR - page 143

    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 ...

  • Cisco Systems uBR7225VXR - page 144

    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 ...

  • Cisco Systems uBR7225VXR - page 145

    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 ...

  • Cisco Systems uBR7225VXR - page 146

    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 ...

  • Cisco Systems uBR7225VXR - page 147

    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 ...

  • Cisco Systems uBR7225VXR - page 148

    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 ...

  • Cisco Systems uBR7225VXR - page 149

    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 ...

  • Cisco Systems uBR7225VXR - page 150

    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 ...

  • Cisco Systems uBR7225VXR - page 151

    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 ...

  • Cisco Systems uBR7225VXR - page 152

    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 ...

  • Cisco Systems uBR7225VXR - page 153

    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 ...

  • Cisco Systems uBR7225VXR - page 154

    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 ...

  • Cisco Systems uBR7225VXR - page 155

    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 ...

  • Cisco Systems uBR7225VXR - page 156

    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 ...

  • Cisco Systems uBR7225VXR - page 157

    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 ...

  • Cisco Systems uBR7225VXR - page 158

    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 ...

  • Cisco Systems uBR7225VXR - page 159

    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 ...

  • Cisco Systems uBR7225VXR - page 160

    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 ...

  • Cisco Systems uBR7225VXR - page 161

    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 ...

  • Cisco Systems uBR7225VXR - page 162

    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 ...

  • Cisco Systems uBR7225VXR - page 163

    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- ...

  • Cisco Systems uBR7225VXR - page 164

    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 ...

  • Cisco Systems uBR7225VXR - page 165

    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 ...

  • Cisco Systems uBR7225VXR - page 166

    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 ...

  • Cisco Systems uBR7225VXR - page 167

    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 ...

  • Cisco Systems uBR7225VXR - page 168

    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 ...

  • Cisco Systems uBR7225VXR - page 169

    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 ...

  • Cisco Systems uBR7225VXR - page 170

    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 ...

  • Cisco Systems uBR7225VXR - page 171

    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 ...

  • Cisco Systems uBR7225VXR - page 172

    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 ...

  • Cisco Systems uBR7225VXR - page 173

    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 ...

  • Cisco Systems uBR7225VXR - page 174

    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 ...

  • Cisco Systems uBR7225VXR - page 175

    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 ...

  • Cisco Systems uBR7225VXR - page 176

    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 ...

  • Cisco Systems uBR7225VXR - page 177

    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 ...

  • Cisco Systems uBR7225VXR - page 178

    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 ...

  • Cisco Systems uBR7225VXR - page 179

    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 ...

  • Cisco Systems uBR7225VXR - page 180

    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 ...

  • Cisco Systems uBR7225VXR - page 181

    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 ...

  • Cisco Systems uBR7225VXR - page 182

    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 ...

  • Cisco Systems uBR7225VXR - page 183

    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 ...

  • Cisco Systems uBR7225VXR - page 184

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

Manufacturer Cisco Systems Category Network Router

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Cisco Systems uBR7225VXR.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Cisco Systems uBR7225VXR by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Cisco Systems uBR7225VXR.

A complete Cisco Systems manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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