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Cisco uBR905 Cable Access Router
Hardware Installation Guide

Part Number: OL-0598-01
September 2000

Text Part Number:

OL-0598-01

Summary of Contents for uBR905

Page 1: ...6 USA http www cisco com Cisco Systems Inc Corporate Headquarters Tel 800 553 NETS 6387 408 526 4000 Fax 408 526 4100 Cisco uBR905 Cable Access Router Hardware Installation Guide Part Number OL 0598 01 September 2000 Text Part Number OL 0598 01 ...

Page 2: ...evision or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses Modifications to this product not authorized by Cisco Systems Inc could void the FCC approval and negate your authority to operate the product The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of...

Page 3: ...ement Publications xiii Obtaining Documentation xiii World Wide Web xiii Documentation CD ROM xiii Ordering Documentation xiii Obtaining Technical Assistance xiv Cisco Connection Online xiv Technical Assistance Center xiv Documentation Feedback xv C H A P T E R 1 Product Overview 1 1 Overview of the Cisco uBR905 Cable Access Router 1 1 Introduction 1 1 Bridging Operations 1 2 Routing Operations 1 ...

Page 4: ...2 1 Warnings and Cautions 2 1 Electrical 2 2 Electrostatic Discharge 2 3 Site Requirements 2 3 Prerequisites 2 4 Environmental 2 5 Power 2 5 CATV Coaxial Cabling 2 5 Interference Considerations 2 6 Coaxial Cable Quality 2 6 Distance Limitations 2 7 Required Tools and Equipment 2 8 C H A P T E R 3 Installing the Cisco uBR905 Router 3 1 Cisco uBR905 Router Installation Checklist 3 1 Physical Placeme...

Page 5: ...tions A 2 A P P E N D I X B Connector and Cable Specifications B 1 Coaxial Connector and Cable Specifications B 1 Ethernet Connector and Cabling B 2 Console Port Connector and Cables B 4 A P P E N D I X C Regulatory Compliance and Safety Information C 1 If You Need More Information C 1 Service Providers C 1 Subscribers End Users C 2 Agency Approvals for the Cisco uBR905 C 2 Safety Information C 2 ...

Page 6: ...tents vi Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Qualified Personnel Warning C 8 Jewelry Removal Warning C 9 Ground Conductor Warning C 10 Router Grounding Warning C 11 I N D E X ...

Page 7: ...ians should be familiar with their cable plant s base operating parameters and subscriber service offerings Cable system support engineers and administrators should be acquainted with Ethernet and IEEE 802 3 type data communications networks Note This document contains instructions to install or configure the Cisco uBR905 cable access router using procedures that only qualified personnel should pe...

Page 8: ...ss router at a subscriber site The chapter also discusses safety and agency considerations Chapter 3 Installing the Cisco uBR905 Router Provides instructions to connect the Cisco uBR905 cable access router perform its initial power on and verify its basic functionality Chapter 4 Troubleshooting Contains basic installation troubleshooting information appropriate to field service technicians The tro...

Page 9: ...mmand abc def You must use either abc or def but not both Braces and vertical bars within square brackets A required choice within an optional element command abc def ghi You have three options Nothing abc def abc ghi Caret character Control key The key combinations D and Ctrl D are equivalent Both mean hold down the Control key while you press the D key Keys are indicated in capital letters but a...

Page 10: ...roorzaken Voordat u aan enige apparatuur gaat werken dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico s en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen kunt u het aanhangsel Regulatory Compliance and Safety Information Vertalingen van veiligheidsvoorschrift...

Page 11: ...eid på utstyr må du være oppmerksom på de faremomentene som elektriske kretser innebærer samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen kan du se i vedlegget Regulatory Compliance and Safety Information Oversatte sikkerhetsadvarsler Aviso Este símbolo de aviso indica perigo Encontra se numa situ...

Page 12: ...outers are also available on CCO CMTS Hardware Installation Publications Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide Cisco uBR7200 Series Universal Broadband Router Cable Modem Card Installation and Configuration publication Cisco uBR7200 Series Universal Broadband Router Port Adapter Insta...

Page 13: ...col SNMP to monitor Cisco uBR905 cable access routers MIB information is available on CCO at ftp ftp cisco com pub mibs and http www cisco com public mibs Obtaining Documentation World Wide Web You can access the most current Cisco documentation on the World Wide Web at http www cisco com http www china cisco com or http www europe cisco com Documentation CD ROM Cisco documentation and additional ...

Page 14: ... and our networking solutions services and programs In addition you can resolve technical issues with online support services download and test software packages and order Cisco learning materials and merchandise Valuable online skill assessment training and certification programs are also available Customers and partners can self register on CCO to obtain additional personalized information and s...

Page 15: ...comments electronically Click Feedback in the toolbar and select Documentation After you complete the form click Submit to send it to Cisco You can e mail your comments to bug doc cisco com To submit your comments by mail for your convenience many documents contain a response card behind the front cover Otherwise you can mail your comments to the following address Cisco Systems Inc Document Resour...

Page 16: ...xvi Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Preface Obtaining Technical Assistance ...

Page 17: ...the Cisco uBR905 Cable Access Router This section provides an overview of the Cisco uBR905 cable access router its hardware and its basic operation Introduction Features Introduction The Cisco uBR905 cable access router functions at its most basic level as a cable modem a modulator demodulator that provides high speed network access on the cable television system to residential and small office ho...

Page 18: ... provide additional functionality such as advanced routing capabilities firewall protection and high security encryption For most residential applications that involve basic Internet access the Cisco uBR905 router is configured as a bridge For residential and SOHO applications that involve special feature sets such as the firewall feature set or that include connection to an existing network at th...

Page 19: ...thernet hub which then connects additional computers or Ethernet devices at the site to a local area network LAN See Figure 1 2 Figure 1 2 Cisco uBR905 in a Routing Configuration In routing mode the Cisco uBR905 is typically configured to use the IP address of the headend router as its default IP gateway Routing mode does not have a maximum limitation on the number of CPE devices as is the case in...

Page 20: ...in routing mode subject to the limits imposed by the service provider Four port 10Base T Ethernet hub interface Coaxial cable F connector interface Support for unicast broadcast and multicast IP packets Automatic configuration and piracy control provided by Automatically downloading a DOCSIS configuration file from the headend to configure itself for operation on the cable network Running resident...

Page 21: ...ons Automatically download a DOCSIS configuration file from the cable interface automatically configuring it for communication with the CMTS and cable network Optionally download a new Cisco IOS software image to easily upgrade its capabilities without requiring an onsite visit from a service provider technician Optionally download a Cisco IOS configuration file that configures the unit for commun...

Page 22: ... from the Cisco factory with the console port enabled By default downloading a Cisco IOS configuration file disables the console port and erases all previously saved configurations This default behavior prohibits configuration access at the remote site Figure 1 3 depicts the front of the Cisco uBR905 cable access router Figure 1 4 shows the rear of the unit Figure 1 3 Cisco uBR905 Cable Access Rou...

Page 23: ...5 Cable Access Router Front Panel LEDs Note LEDs that are not shown in Figure 1 5 are not used Table 1 1 Cisco uBR905 Cable Access Router Front Panel LED Description Label Description Color Function OK System Status Green On Cisco uBR905 power on and self test diagnostics have finished successfully the system image has been booted and the system is operational Blink After power on and self test di...

Page 24: ...nel Off Cisco uBR905 has not yet locked to a downstream frequency channel or the router has not yet located a digital signal US 1 Upstream Signal Quality Green On Cisco uBR905 has established upstream communications with the CMTS cable access router has completed ranging state 2 as per DOCSIS has entered provisioning state and is communicating within 6 dB of desired final power level generally wit...

Page 25: ... configurations This default behavior prohibits configuration access at the remote site Power Supply The Cisco uBR905 cable access router uses an external AC input power supply Refer to Table A 1 in Appendix A Technical Specifications for the AC input power supply power specifications including input voltage and operating frequency ranges The Cisco uBR905 cable access router does not contain a pow...

Page 26: ...n file can also specify that the router should download another Cisco IOS image from the CMTS 4 To configure the Cisco uBR905 cable access router for any additional features the cable service provider can do any or all of the following Cisco IOS commands can be included in the Vendor Specific Information field suboption 131 in the DOCSIS configuration file The Cisco uBR905 cable access router can ...

Page 27: ... on the downstream channel 4 The router then waits for an Upstream Channel Descriptor UCD message from the CMTS and configures itself for the upstream frequency specified in that message 5 The router waits for the next upstream bandwidth allocation map message MAP These messages are regularly sent from the CMTS to find the next available shared request time slot The router then uses this time slot...

Page 28: ...g on the software image being run and the capabilities of the CMTS the DOCSIS configuration file can also specify multiple CoS profiles Each CoS profile is assigned its own SID either dynamically or statically depending on the capabilities of the CMTS and software image being used 13 The router completes its secondary ranging and is then online passing data between the cable network and the PCs an...

Page 29: ...he channels available to assign to specific Cisco uBR905 routers A CMTS customer service representative must have recorded all needed subscriber information initiated a work order and arranged an installation date with the subscriber The CMTS system administrator or appropriate personnel must have specified the policy parameters for the Cisco uBR905 router and all computers and other CPE devices t...

Page 30: ...e is manually configuring the Cisco uBR905 router through its command line interface a Cisco IOS configuration file must be prepared that specifies the routing parameters required to route data between the cable and serial interfaces This file can specify any other optional features that are desired It must be made available on a TFTP server that is accessible through the cable interface Upgrading...

Page 31: ...the CMTS the upstream direction The CMTS divides the cable plant into downstream channels and upstream segments or clusters of nodes Each Cisco uBR905 router on the network is configured to receive data on a particular downstream channel A downstream channel contains one or more upstream segments partitioning the upstream plant into smaller segments significantly reduces the number of potential in...

Page 32: ...andwidth management when new users are added or when a user wants to upgrade to a higher bandwidth service The Cisco uBR905 cable access router receives the upstream data from the CPE devices to which it is connected It modulates this data for transmission on the coaxial cable system to the CMTS The CMTS then routes the data to the appropriate destination local server Internet and so forth through...

Page 33: ... the current one expires IPsec Network Security IPsec is a framework of open standards developed by the Internet Engineering Task Force IETF for the secure transmission of sensitive information over unprotected networks such as the Internet IPsec acts at the network layer Layer 3 protecting and authenticating IP packets between participating IPsec devices peers such as the Cisco uBR905 cable acces...

Page 34: ...1 18 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Chapter 1 Product Overview Functional Overview ...

Page 35: ...discharge ESD Site Requirements page 2 3 Describes the basic requirements for installing the Cisco uBR905 cable access router as well as environment power and coaxial cable requirements Required Tools and Equipment page 2 8 Lists the tools and other equipment that is required for most installations Note For information on the governmental regulations and restrictions on this equipment see Appendix...

Page 36: ...rning Failure to properly ground the router either by circumventing the three wire grounding type plug or by using a power outlet that is improperly grounded can create a potentially hazardous electrical situation Operate the Cisco uBR905 cable access router in accordance with its marked electrical ratings and product usage instructions Always unplug the power cable before installing or removing a...

Page 37: ...e Electromagnetic interference EMI shielding and connectors are integral components of the enclosure Although the enclosure helps protect the boards use an antistatic strap whenever handling the Cisco uBR905 cable access router This minimizes the possibility that ESD damage can occur to the internal boards by touching the external connectors Following are guidelines for preventing ESD damage If yo...

Page 38: ... connecting to the headend in this situation the provisioning process fails and the router s US LED never comes on Ensure that all required headend routing and network interface equipment is installed configured and operational Ensure that DHCP Cisco IOS images and configuration files have been created and pushed to appropriate servers such that each Cisco uBR905 router when initialized can transm...

Page 39: ...aution For proper airflow keep the back sides and bottom of the cable access router clear of obstructions and away from the exhaust of other equipment To prevent the unit from overheating never install the Cisco uBR905 router in an enclosed rack or room that is not properly ventilated or air conditioned Power The Cisco uBR905 router does not contain a power switch After the cable system technician...

Page 40: ...al cable quality can vary dramatically at each installation site Poor insulation improperly installed additional outlets the condition and length of the cable s center conductor and the quality of the cable can negatively affect the connectivity and performance of the cable access router for digital data transmission Coaxial cable tolerances for the transmission of two way digital data are much lo...

Page 41: ...peed of light through the transmission network as being less than 2 msec from the CMTS to the Cisco uBR905 router and back again Note Exceeding this distance is a violation of the DOCSIS RFI specification When preparing a site for network connections to the Cisco uBR905 router consider the following Number of amplifiers from the installation site to the nearest node Number of outlets and amplifier...

Page 42: ...nal level meter capable of reading a 64 QAM signal or a spectrum analyzer HP8594Q or equivalent as appropriate An alternative is a clear understanding of the digital to analog channel amplitude offset and a calibrated analog signal level meter to measure a nearby adjacent analog carrier Mixed set of attenuators pads cable adapters splitters High Pass Filters HPF directional couplers as appropriate...

Page 43: ...available via CCO Cisco uBR905 Cable Access Router Hardware Installation Guide this document Cisco uBR905 Cable Access Router Software Configuration Guide Release notes are available for all Cisco IOS Release images After you have completed installation give each subscriber a copy of the Quick Start Cisco uBR905 Cable Access Router Subscriber Setup publication along with any documentation your com...

Page 44: ...2 10 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Chapter 2 Preparing for Installation Required Tools and Equipment ...

Page 45: ... the Ethernet Cables page 3 5 Connecting Power page 3 6 Router Power On and Initialization Sequence page 3 8 Verifying Installation page 3 9 Caution Before proceeding with the installation verify that you have fulfilled all of the requirements listed in Chapter 2 Preparing for Installation Also read and follow the safety guidelines in the Safety section on page 2 1 as well as those contained in th...

Page 46: ...tor to the cable TV coaxial drop cable If the subscriber also subscribes to cable TV services install a cable splitter directional coupler and high pass filter as appropriate Connecting to the Cable System section on page 3 4 Use the Ethernet ports to connect the Cisco uBR905 router to CPE devices at the site To directly connect PCs to the Cisco uBR905 router connect as many as four of the unit s ...

Page 47: ...sco uBR905 cable access router to operate in any country where the input voltage is between 100 and 240 VAC and 50 or 60 Hz Different power cords are available to suit the country of operation Refer to Table A 1 on page A 1 for AC input power supply specifications including input voltage and operating frequency ranges Cisco recommends that you follow these precautions Check the power at the subscr...

Page 48: ...on the equipment could be damaged by the higher levels of static electricity present in the atmosphere Note Adhere to the safety guidelines presented in the Safety section on page 2 1 before following procedures in the remainder of this chapter Be sure that all equipment to be connected to the cable access router is powered off Caution Do not connect the router to power at this point because the r...

Page 49: ...uilding or residence can cause intermittent router operation Caution To ensure compliance with FCC limits connection to the cable system must be made with a high quality shielded cable If the quality or general condition of the coaxial cable at the subscriber site is in question Cisco recommends that you replace the coaxial cable For more information on the effects of substandard cabling on the ca...

Page 50: ...e Cisco uBR905 Cable Access Router Note Do not connect the Ethernet cables into the RJ 45 console connector Step 3 Press the cable end firmly into the router s Ethernet receptacle and connect the other end to the computer or hub as applicable Step 4 Repeat Step 2 and Step 3 for each Ethernet connection from the Cisco uBR905 cable access router Connecting Power To connect AC input power to the Cisc...

Page 51: ...omplete their startup processes Caution To turn off the router when it is operational disconnect the 3 prong end of the power cord from the power outlet To prevent electrical shock do not disconnect the AC power supply cord from the power supply while the router is operating Warning Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor C...

Page 52: ...ED error patterns Step 3 During the router s initialization and download the green OK and ACT LEDs both blink After completing the download procedure which could take up to 10 minutes if downloading a new Cisco IOS image as well as a configuration file the green OK LED remains on Step 4 Check that the DS US LINK and DSNR LEDs remain on to indicate that the router is operational and is receiving a ...

Page 53: ...gh Step 3 for each PC connected to the Cisco uBR905 router Step 5 Disconnect the cable system input by unscrewing the cable F connector at the back of the router Step 6 Using an in line attenuator add 3 to 6 dB of attenuation between the router and the coaxial cable input Note The addition of 3 to 6 dB of attenuation simulates the variation found in a cable network over time and in relation to tem...

Page 54: ...3 10 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Chapter 3 Installing the Cisco uBR905 Router Verifying Installation ...

Page 55: ... router s command line interface CLI or knowledge of CLI commands For more advanced troubleshooting refer to the Cisco IOS online document Troubleshooting Tips for the Cisco uBR905 Cable Access Router Troubleshooting Overview Installation problems with Cisco uBR905 routers are commonly due to the cable system and its topography LEDs on the front panel of the Cisco uBR905 router reveal operational ...

Page 56: ...unctional If all diagnostic procedures are successful all LEDs except for the four Ethernet and the ACT LEDs briefly blink 3 The next step of the self test initializes the memory controller The US LED comes on if this test succeeds 4 The console port is initialized and the banner is output to the console port 5 Next the Cisco uBR905 router performs a self test on the low memory area of the DRAM Wh...

Page 57: ...he cable interface is operational and is connected to the proper coaxial cable The DSNR LED reveals that the router is receiving a quality downstream signal with a low signal to noise ratio SNR and that is 5 dB above the downstream lock threshold The ACT LED blinks to indicate activity on the cable interface The Ethernet 1 2 3 4 LEDs blink to indicate activity from the PCs and other customer premi...

Page 58: ...4 2 Basic Troubleshooting Strategy for Startup Problems Turn on system power Power LED on Power LED on No No Yes Yes Yes Troubleshoot power subsystem Check the coaxial CATV cable Troubleshoot coaxial cable HFC network problem troubleshoot service Check the personal computer Contact your system administrator No No Coaxial cable in excellent condition Coaxial cable in excellent condition Check RF do...

Page 59: ... is powered on Reseat the Ethernet cable at both ends Make sure that TCP IP software is installed and DHCP is enabled Replace the cable reviewing the hub user guide or Ethernet user guide Notify the subscriber to replace the Ethernet card LINK Cable RF LED is off Cable RF LED is blinking Router searching for a signal RF levels wrong Cable is out Router is locked to a signal and connecting to the h...

Page 60: ...u are unable to resolve the problem or you determine that either a power supply or cable access router connector is faulty contact your field office for instructions US Upstream LED is off Upstream signal is not reaching the headend router is unable to communicate with the remote end Systematic RF noise problem or other outage Verify continuity back to the headend using the standard procedures for...

Page 61: ...ting cables with ones that have higher quality connectors see Coaxial Connector and Cable Specifications in Appendix B Connector and Cable Specifications for the recommended cable and connector quality A high pass filter might be necessary between the modem and TV to prevent signal interference If this does not help you might need to install a separate cable for TV reception Step 3 Disconnect the ...

Page 62: ...ns a Turn on your PC and enter your network username and password b Choose Start Settings Control Panel to display the Control Panel c Double click the Network icon The Network window appears with the Configuration tab in the foreground If the Configuration tab is not in the foreground click this tab d Scroll the network components list box until the Ethernet adapter TCP IP option displays for you...

Page 63: ... OK g From the Control Panel double click the System icon The System Properties window appears with the General tab in the foreground h Click the Device Manager tab i Click the Network adapter selection Make sure that the display does not contain either a red X or a yellow exclamation point j Click OK Setting Network Components a Turn on your PC and enter your network username and password b Choos...

Page 64: ...ved RF parameters and do a hardware reload This reload is similar to plugging in the router for the first time Pressing the reset switch for longer than 30 seconds causes the router to erase its system image and download a new system image over the cable interface should the CMTS system administrator have set certain options in the configuration file in conjunction with field service personnel The...

Page 65: ...ble with the startup that is not resolved with the procedures and tips in this chapter contact field service dispatch for further assistance and instructions Also see the documentation available in the Broadband Cable section on CCO and the Documentation CD ROM Note Cisco recommends that a CMTS systems engineer or network administrator be available or on call to assist field service technicians or...

Page 66: ...4 12 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Chapter 4 Troubleshooting Further Contacts ...

Page 67: ...t rating 1 A2 maximum 2 A ampere AC input cable 18 AWG3 three wire cable with an IEC 320 three lead receptacle on the power supply end and a North American NEMA 5 15P plug on the power source end other country specific cords are available and supplied as ordered 3 AWG American Wire Gauge Power dissipation 12 to 15W Frequency 50 60 Hz4 4 Hz hertz Temperature 32 to 104 F 0 to 40 C operating 13 to 15...

Page 68: ...30 dB For input level between 6 and 15 dBmV SNR must be greater than 33 dB Note These performance numbers are in laboratory controlled conditions against statistically pure noise sources AWGN Since such conditions do not exist in practice a 6 or more dB SNR margin is required for reliable operation Check with your local system guidelines QPSK 15 dB BER 10 8 QPSK works at 98 successful ping rate fo...

Page 69: ...t 56 bit and 168 bit DES encryption as controlled by the headend and configuration files Note Cisco IOS images must contain encryption software at both the CMTS and the Cisco uBR905 router Both the router and CMTS must be enabled and properly configured to support encryption Table A 2 Cisco uBR905 Cable Access Router Data Specifications continued Description Downstream Values Upstream Values ...

Page 70: ...A 4 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 Appendix A Technical Specifications Data Specifications ...

Page 71: ...die cast out of zinc with a tin lead plating The round center contact is made of phosphor bronze with a tin lead plating The insulator is polypropylene and will accept a coaxial cable center conductor with a diameter ranging from 0 022 inch 0 056 mm to 0 042 inch 1 07 mm The coaxial cable used to connect the Cisco uBR7200 series universal broadband routers at the headend should be very high qualit...

Page 72: ... If signals at the same frequency are carried on long parallel runs of coaxial cable interference can occur between the signals Higher quality cable helps to prevent this with better shielding Co channel interference is seen as hum or patterns in analog video channels and intermittent data loss in digital channels Damage to Cisco uBR7200 series cable modem card connectors The modem card connectors...

Page 73: ...8 Common mode termination reduces electromagnetic interference EMI To identify the RJ 45 cable type hold the two ends of the cable next to each other so you can see the colored wires inside the ends as shown in Figure B 3 Figure B 3 RJ 45 Cable Identification Examine the sequence of colored wires to determine the type of RJ 45 cable Straight through The colored wires are in the same sequence at bo...

Page 74: ...when the Cisco uBR905 is first powered on the initial system banner should be displayed on the computer s console screen If you do not see the system banner verify that the laptop s serial port is set correctly and that it is properly connected to the console port Note By default downloading a Cisco IOS configuration file disables the console port and erases all previously saved configurations The...

Page 75: ...rnings page C 3 If You Need More Information The Cisco IOS software running on the Cisco uBR905 contains extensive features and functionality Feature sets and operating modes differ based on the Cisco IOS release the cable plant s base operating parameters and the services to be offered to subscribers Documentation requirements vary for service providers and subscribers Service Providers For servi...

Page 76: ...rvice at 800 553 6387 or 408 526 7208 Customer service hours are 5 00 a m to 6 00 p m Pacific time Monday through Friday excluding Cisco observed company holidays You can also send e mail to cs rep cisco com You can also refer to the Cisco Information Packet that shipped with your router Subscribers End Users For subscribers the Cisco uBR905 Cable Access Router Subscriber Setup Quick Start card de...

Page 77: ...port the need for service to their service provider Translated Safety Warnings This section repeats in multiple languages the warnings found in the documentation related to the Cisco uBR905 router Warning Definition Warning This warning symbol means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical circuit...

Page 78: ...ør du utfører arbeid på utstyr må du vare oppmerksom på de faremomentene som elektriske kretser innebærer samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker Aviso Este símbolo de aviso indica perigo Encontra se numa situação que lhe poderá causar danos físicos Antes de começar a trabalhar com qualquer equipamento familiarize se com os perigos relacionados com circuitos eléctri...

Page 79: ...temet eller ansluta eller koppla loss kablar Warning Read the installation instructions before you connect the system to its power source Waarschuwing Raadpleeg de installatie aanwijzingen voordat u het systeem met de voeding verbindt Varoitus Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen Attention Avant de brancher le système sur la source d alimentation consulter les directiv...

Page 80: ...rtenza Il dispositivo è stato progettato per l uso con sistemi di alimentazione TN Advarsel Utstyret er utfomet til bruk med TN strømsystemer Aviso O dispositivo foi criado para operar com sistemas de corrente TN Advertencia El equipo está diseñado para trabajar con sistemas de alimentación tipo TN Varning Enheten är konstruerad för användning tillsammans med elkraftssystem av TN typ Advarsel Appa...

Page 81: ...eguir todas las leyes y reglamentos nacionales Varning Vid deponering hanteras produkten enligt gällande lagar och bestämmelser Warning Unplug the power cord before you work on a system that does not have an on off switch Waarschuwing Voordat u aan een systeem werkt dat geen aan uit schakelaar heeft dient u de stekker van het netsnoer uit het stopcontact te halen Varoitus Ennen kuin teet mitään se...

Page 82: ...tettu ja pätevä henkilökunta saa asentaa tai vaihtaa tämän laitteen Avertissement Tout installation ou remplacement de l appareil doit être réalisé par du personnel qualifié et compétent Achtung Gerät nur von geschultem qualifiziertem Personal installieren oder auswechseln lassen Avvertenza Solo personale addestrato e qualificato deve essere autorizzato ad installare o sostituire questo apparecchi...

Page 83: ...squ ils sont branchés à l alimentation et reliés à la terre les objets métalliques chauffent ce qui peut provoquer des blessures graves ou souder l objet métallique aux bornes Warnung Vor der Arbeit an Geräten die an das Netz angeschlossen sind jeglichen Schmuck einschließlich Ringe Ketten und Uhren abnehmen Metallgegenstände erhitzen sich wenn sie an das Netz und die Erde angeschlossen werden und...

Page 84: ...voegde instantie voor elektrische inspecties of met een elektricien als u er niet zeker van bent dat er voor passende aarding gezorgd is Varoitus Älä koskaan ohita maajohdinta tai käytä laitteita ilman oikein asennettua maajohdinta Ota yhteyttä asianmukaiseen sähkötarkastusviranomaiseen tai sähköasentajaan jos olet epävarma maadoituksen sopivuudesta Attention Ne jamais rendre inopérant le conducte...

Page 85: ... aarding bij de aansluitingen van de router hetzij door geen geaarde stekker te gebruiken hetzij door het ontbreken van een geaard stopcontact kan dit leiden tot een potentieel gevaarlijke situatie Varoitus Jos reititin maadoitetaan huonosti joko kiertämällä kolmijohtoinen maadoituspistoke tai käyttämällä huonosti maadoitettua pistorasiaa voi aiheutua sähköiskun vaara Attention Une mauvaise mise à...

Page 86: ... tierra ya sea por no conectar los tres cables del enchufe o por usar una toma de corriente con toma de tierra defectuosa se corre riesgo de electrocución Varning Underlåtenhet att korrekt ansluta skyddsjord till routern antingen genom att förbikoppla det jordade kontaktdonet eller genom att använda ett strömuttag som inte är jordat på rätt sätt kan skapa en potentiellt farlig elektrisk situation ...

Page 87: ... coaxial cable connectors 2 7 coaxial cable 4 7 condition of 4 7 subsystem for troubleshooting 4 4 4 7 configuration files Cisco IOS 1 14 DOCSIS 1 10 1 14 connection equipment console port signals B 4 connections coaxial cable 3 4 power 3 6 console port adapter B 4 pinouts B 4 console terminal system banner display B 4 crossover cable connection B 2 D data operations description 1 15 downstream tr...

Page 88: ...f steps 1 11 installation connecting the CATV cable 3 4 interference radio frequency 2 6 IOS images upgrading 1 14 J jewelry avoiding for safety 2 2 L LED description 1 7 LEDs 1 4 5 Link 4 5 OK 4 5 lightning storm safety during 2 2 M MAX CPE parameter 1 3 maximum CPE devices 1 3 N note description of x O operations data connections 1 15 LED descriptions 1 7 P personal computer subsystem for troubl...

Page 89: ...ctrostatic discharge damage 2 3 site requirements environment 2 5 power 3 3 software images upgrading 1 14 SP RFII01 990731 RF interface specification 1 13 subsystems for troubleshooting coaxial cable 4 7 power 4 6 system specifications A 1 System status LED 4 5 T timesaver description x troubleshooting coaxial cable subsystem 4 7 identifying installation problems 4 2 power subsystem 4 6 strategy ...

Page 90: ...Index 4 Cisco uBR905 Router Hardware Installation Guide OL 0598 01 9 2000 ...

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