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Cisco uBR924 Cable Access Router Hardware Installation Guide March 2000 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Text Part Number: OL-0338-01...
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You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures: •...
Obtaining Technical Assistance Cisco Connection Online Technical Assistance Center Documentation Feedback Product Overview C H A P T E R Cisco uBR924 Cable Access Router Description Introduction Routing and Bridging Upgrading the Software Image Initial Power-On and Provisioning Initial Power-On Sequence...
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C H A P T E R Cisco uBR924 Router Installation Checklist Physical Placement Verifying Power Requirements Connecting to the Cable System Connecting the Ethernet Cables Connecting to Telephones or Fax Devices Connecting the Backup POTS Connection Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Console Port Connector and Cables Regulatory Compliance and Safety Information A P P E N D I X If You Need More Information Service Providers Subscribers (End Users) Agency Approvals for the Cisco uBR924 Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Hazardous Voltages in WAN Ports C-17 Incorrect Connection Warning C-18 Service Personnel Warning C-19 Telecommunications Lines Warning C-19 No. 26 AWG Warning C-20 Ring Signal Generator Warning C-21 I N D E X Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Purpose This guide covers the physical installation of the Cisco uBR924 cable access router. These procedures include site preparation, the physical placement of the router in an appropriate location, the cabling required for the power, Ethernet, voice, and cable connections, and verification of the installation at the router’s initial power-on.
(CLI). However, CLI access might be required to configure the router and to bring it to full operability. See the Cisco uBR924 Cable Access Router Software Configuration Guide for instructions on configuring the router for network operation.
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For commands at the prompt example, the prompt indicates Router (config) # global configuration mode. font Terminal sessions and information Screen the system displays Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. (Tässä julkaisussa esiintyvien varoitusten käännökset löydät liitteestä "Regulatory Compliance and Safety Information" (käännetyt turvallisuutta koskevat varoitukset).) Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. (Se förklaringar av de varningar som förekommer i denna publikation i appendix "Regulatory Compliance and Safety Information" [Översatta säkerhetsvarningar].) Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Preface Related Documentation Related Documentation Refer to the following Cisco documents for related information. The documents can be found online at Cisco Connection Online (CCO) or on the Documentation CD-ROM. You can also order printed copies of most current documents.
MIB information is available on CCO at ftp://ftp.cisco.com/pub/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 literature are available in a CD-ROM package, which ships with your product.
Technical Assistance Center The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract. To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
Documentation Feedback If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
The chapter provides physical and functional overviews of the Cisco uBR924 cable access router and its supported operating modes. Cisco uBR924 Cable Access Router Description This section provides an overview of the Cisco uBR924 cable access router, its hardware, and its basic operation: Introduction •...
• Bridging—When installed and configured as a bridge, the Ethernet hub ports at the rear of the Cisco uBR924 router can be connected directly to PCs at the subscriber site in one of the following configurations: When using Cisco IOS Release 12.0(4)XI or higher interim builds in bridging mode, a –...
Cisco uBR924 cable access router In routing mode, no maximum limitation exists. The Cisco uBR924 is configured to use the IP address of the headend router as the router’s default IP gateway. Note For better network performance, Cisco recommends a maximum limit of 16 CPE devices in either bridging or routing mode.
To ensure that subscribers obtain the exact services they have ordered, the Cisco uBR924 router arrives from the Cisco factory with a unique identifier (UID) that consists of a serial number and MAC address. These factory-assigned values are on a label at the bottom of the router; for convenience, these values are also in a barcode label that can be easily scanned for easy entry into the service provider’s...
Cisco uBR924 Cable Access Router Description Initial Power-On Sequence When connected and first powered on, the Cisco uBR924 cable access router performs the following DOCSIS-mandated procedure for automatic installation and configuration: The router boots the Read Only Memory (ROM) from the ROMMON partition of its Flash memory.
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If the DOCSIS configuration file specifies that the router must download a secondary Cisco IOS image and a Cisco IOS configuration file, the router uses TFTP to download the image and configuration files into its local memory. It then installs the new Cisco IOS image and runs the configuration file.
Note Interface (RFI) specification (SP-RFII01-990731 or later revision). After the Cisco uBR924 router goes online, it sends traffic between the attached CPE devices and the network (Internet, Intranet, VoIP). The service provider typically uses DHCP to assign IP addresses to the CPE devices.
Data Operations This section provides an overview of how data is transmitted to and from the Cisco uBR924 router across the cable system’s HFC network. Figure 1-4 illustrates a typical broadband data cable system, showing the network path between the Cisco uBR924 router and the CMTS headend equipment (Cisco uBR7200 series universal broadband router or other DOCSIS-compliant CMTS).
The CMTS divides the cable plant into downstream channels and upstream segments or clusters of nodes. Each Cisco uBR924 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 ingress sources and failure points.
384 kbps upstream. The Cisco uBR924 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 its WAN interfaces.
This default behavior is recommended as it prohibits configuration access at the remote site. Figure 1-5 depicts the front of the Cisco uBR924 cable access router. Figure 1-6 shows the rear of the unit. Cisco uBR924 Router Hardware Installation Guide...
Power Supply See Appendix B, “Connector and Cable Specifications,” for the pinouts and cabling information for each of these connectors. For information on using the console port, see the Cisco uBR924 Software Configuration Guide. Cisco uBR924 Router Hardware Installation Guide...
Features LED Descriptions The Cisco uBR924 router contains 15 LEDs on the front panel that provide information about the router’s status and network connections. Figure 1-7 illustrates the LEDs on the router’s front panel. Table 1-1 lists each LED and its meaning.
1. These are the Cisco factory-default LED settings. Configuration control messages can be sent to the Cisco uBR924 cable access router through Simple Network Management (SNMP) set requests. Using Management Information Base (MIB) objects in the Cisco cable device MIB, the CMTS system administrator can define these LEDs to have other meanings.
VoIP telephone lines. The V1+V2 port on the Cisco uBR924 is a 4-wire port, with the second telco pair wired in parallel with V2. A two-line analog telephone can be connected, therefore, to the V1+V2 port. In this configuration, devices plugged into the V2 port act as extensions to the line 2 telephone.
After the cutover call is terminated, the router automatically reboots. Power Supply The Cisco uBR924 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.
This chapter recommends general safety guidelines to follow and identifies requirements to meet before going to a subscriber site to install a Cisco uBR924 cable access router. It also lists the major Federal Communications Commission (FCC), Underwriter Laboratory (UL), and other agency approvals for the router.
Use the Cisco-provided power supply and power cord to connect the • Cisco uBR924 cable access router to its power supply and the power supply to the power outlet. The router ships with a three-wire electrical grounding-type plug which only fits into a grounding-type power outlet.
The Cisco uBR924 cable access router consists of a printed circuit board that is housed in a metal enclosure. Electromagnetic interference (EMI) shielding and connectors are integral components of the enclosure.
Table 2-1 lists the operating and nonoperating environmental site requirements for operation of the Cisco uBR924 router. The ranges indicate the minimum and maximum values allowed for the router’s operation, but if a measurement approaches the minimum or maximum of a range, it could indicate a potential problem.
For proper airflow, keep the back, sides, and bottom of the cable access router clear of Caution obstructions and away from the exhaust of other equipment. To prevent unit overheating, never install the Cisco uBR924 router in an enclosed rack or room that is not properly ventilated or air conditioned. Power The Cisco uBR924 router does not contain a power switch.
Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal • drivers and receivers in the Cisco uBR924 router, and can even create an electrical hazard by conducting power surges through lines and into equipment. (Review the safety warnings in the “Electrical”...
The size of your networks and the distances between connections on the CATV network can affect the successful installation of a Cisco uBR924 router, which must be within 100 miles of the CMTS. This distance can also be defined in relation to the speed of light through the transmission network as being less than 2 msec from the CMTS to the Cisco uBR924 router and back again.
Approvals and Regulations Approvals and Regulations The Cisco uBR924 router interfaces with national cable, telco, and network installations, which are subject to government regulation and oversight. Please read the following sections to verify that the installation of the router is within the parameters imposed by the regulatory bodies that are responsible for the subscriber’s site.
In most areas, the sum of the RENs of all devices on any one line should not exceed five. If too many devices are attached, they may not ring properly. Country Approvals As of the date of the publication of this manual, the Cisco uBR924 router is approved to operate in the following countries: •...
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The termination on a loop may consist of any combination of devices subject only to the requirement that the total REN of all the devices does not exceed five. Cisco uBR924 Router Hardware Installation Guide 2-10 OL-0338-01 (3/2000)
Preparing for Installation Required Tools and Equipment Required Tools and Equipment Assemble the tools and equipment needed to install the Cisco uBR924 router at subscriber sites. Table 2-3 lists the recommended items that Cisco does not provide. Table 2-3 Recommended Tools, Cabling, and Equipment List...
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Based on the number of subscriber sites you are scheduled to install, ensure that you have sufficient Cisco-provided bulk box packages. After you have completed installation, give each subscriber a copy of the Quick Start, Cisco uBR924 Cable Access Router Subscriber Setup publication, along with any documentation your company provides.
“Safety” section on page 2-1, as well as those contained in this chapter. Cisco uBR924 Router Installation Checklist Table 3-1 presents a checklist, identifying the installation tasks to complete at each subscriber site. Use this table as a guide while installing the router. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Connect the Cisco uBR924 router to CPE devices at the site: “Connecting the Ethernet Cables” section on To directly connect PCs to the Cisco uBR924 router, connect up to four of the • page 3-6 unit’s Ethernet hub ports directly to the 10BaseT Ethernet (RJ-45) ports of the PCs.
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• To test the backup POTS connection, disconnect the three prong end of the power cord from the power outlet to power off the Cisco uBR924 (follow safety instructions in the “Connecting Power” section on page 3-10) and verify that a call can be established over the PSTN. Hang up that call, wait until the Cisco uBR924 reboots, and reverify that a VoIP telephone call can be made.
The AC-input power supply uses a power factor corrector that allows the Cisco uBR924 cable access router to operate in any country where the input voltage is between 100 and 240 VAC, and 50 or 60 Hz.
Connecting to the Cable System To connect the Cisco uBR924 router to the cable system: Verify that the router is not connected to power. Step 1 Step 2 Locate the RF coaxial cable coming from the CATV wall outlet.
• access router’s four Ethernet hub ports. Use a crossover Ethernet cable to connect the Cisco uBR924 cable access router to an Ethernet hub • if more than four PCs or other LAN devices are to be connected at the site (supported only when running Cisco IOS Release 12.0(5)T or higher images).
Connecting to Telephones or Fax Devices If you have purchased voice services from your service provider and are using a Cisco IOS image with voice support, use the following procedure to connect the Cisco uBR924 router to telephone or fax...
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Chapter 3 Installing the Cisco uBR924 Router Connecting to Telephones or Fax Devices Refer to the “Required Tools and Equipment” section on page 2-11. Cisco does Note not provide these items. Connect one end of the cable to one of the Phone ports (labeled V1+V2 and V2) at the rear of the router.
The ringer is activated by an incoming call. Connecting the Backup POTS Connection To connect the Cisco uBR924 router to the backup, standard analog telephone line, follow the instructions below. To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
The ringer is activated by an incoming call. When the Cisco uBR924 router has a backup connection to the PSTN and the router loses power while VoIP calls are in progress, the subscriber can establish a voice connection by dialing out over the public switched telephone network (PSTN).
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Never defeat the ground conductor or operate the equipment in the absence of a suitably Warning installed ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. Cisco uBR924 Router Hardware Installation Guide 3-11 OL-0338-01 (3/2000)
(except for the four Ethernet LEDs and the ACT LED) briefly light and then turn off. As self-test is executed, various LEDs light to reveal diagnostic progress and turn off when self-test is complete. The OK LED then blinks as the router completes self-test and boots a Cisco IOS image. When this is Step 2 finished, the OK LED lights again.
From a PC connected to the Cisco uBR924 router, start the Internet browser program installed on the Step 2 Enter a URL of your choice in your web browser. If a URL is not known, use http://www.cisco.com to connect to Cisco’s CCO web site.
Reconnect the cable system to the router and recheck the network connection at the PC as in step 7. VoIP Telephone Connection If the router has loaded a Cisco IOS image with voice support, use the following procedure to test the VoIP network by making a telephone call over the HFC and IP backbone network: Pick up a telephone connected to one of the router’s VoIP (V1+V2 or V2) rear ports.
To verify the backup POTS line to the PSTN is operational: Step 1 Simulate a power failure in the Cisco uBR924 router by disconnecting the 3-prong end of the power cord from the power outlet—be certain to follow all safety instructions in the “Connecting Power”...
Installation problems with Cisco uBR924 routers are commonly due to the cable system and its topography. LEDs on the front panel of the Cisco uBR924 router reveal operational status and help you determine problem areas. See Figure 4-1 for the layout of the LEDs on the router’s front panel; see Table 1-1 on page 1-13 for a description of these LEDs.
ACT LED) briefly light and then turn off when self-test and diagnostic procedures are successful. The procedures ensure Cisco uBR924 components are functioning. To complete all self-test and diagnostic procedures, the Cisco uBR924 processor must be able to: Perform a system reset trap.
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If the LED does not start to blink, proceed to the “Power Subsystem” troubleshooting section. The router starts normal operations after it starts up the Cisco IOS image. At this point, the US, DSNR and LINK LEDs remain on to indicate the router is operational and receiving a healthy signal: The DS LED indicates the router is locked to a downstream channel.
The voice port LEDs (V1 and V2) on the cable access router light when a subscriber establishes a VoIP connection. If you do not have dial tone on the Cisco uBR924 voice ports and cannot establish a VoIP connection, proceed to the troubleshooting “VoIP Subsystem” section on page 4-11.
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Check the personal computer Get computer Can you Can you Troubleshoot and/or network view the view the personal I/F card tech web page? web page? computer assistance Contact your Installation system successful administrator Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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DOCSIS system signal. Downstream RF coaxial cable is not Reconnect the cable. LED is off. properly connected to the router. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Power Subsystem To help isolate a problem with the Cisco uBR924 router power subsystem, look at the OK LED. Does the LED remain on when self-test is completed and a software image booted? If yes, the power source is good and the power supply is functional.
Troubleshooting Troubleshooting Subsystems Coaxial Cable Subsystem For proper operation the Cisco uBR924 router must be able to establish a connection with the service provider’s CMTS. There are many conditions inherent to coaxial cable that can inhibit this connection: Step 1 Verify the cable connection from the router to the HFC plant and headend by checking the video reception.
PC Subsystem To isolate a problem with a PC that is connected to the Cisco uBR924 router: Can you access a web page using the web browser installed on the computer?
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If the subscriber does not intend to use America Online, remove both these components from the Network components list box: Click AOL Dialup Adapter to highlight it. Click Remove. • Click TCP/IP:AOL Dialup Adapter to highlight it. Click Remove. • Cisco uBR924 Router Hardware Installation Guide 4-10 OL-0338-01 (3/2000)
Click Yes to reboot the computer. VoIP Subsystem If you do not have dial tone when picking up a telephone or fax device connected to the Cisco uBR924 router’s voice ports, ensure the router is using a Cisco IOS image that supports voice. For more information on Cisco IOS images, refer to the release notes that accompanied the router;...
Using the Reset Switch The Cisco uBR924 router contains a reset switch with three different actions: • A quick press (less than 10 seconds) initiates a hardware reset, similar to a power cycle or software reload.
Note The reset switch on the back panel of the Cisco uBR924 cable access router is recessed to prevent accidental resets of the router. To depress the switch, use a blunt object, such as a pen or pencil point; do not use a sharp object, such as a knife or awl, because this could permanently damage the switch and the router’s circuitry.
A P P E N D I X Technical Specifications This appendix contains the following technical specifications for the Cisco uBR924 cable access router: • Physical, Power, and Environmental Specifications Data Specifications • Voice Specifications • Physical, Power, and Environmental Specifications Table A-1 lists the Cisco uBR924 cable access router physical specifications and power requirements.
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Description Specification Software requirement Cisco uBR924 cable access router software—Cisco IOS Release 12.0(4)XI or higher Agency approvals Safety: UL 1950, CSA 22.2 No. 950, EN60950, IEC60950, AS/NZS3260, TS001 EMI: FCC Class A, FCC Class B, CSA Class A, EN60555-2, EN55022 Class B,...
Appendix A Technical Specifications Data Specifications Data Specifications Table A-2 lists the specifications for the Cisco uBR924 cable access router’s data ports. Table A-2 Cisco uBR924 Cable Access Router Data Specifications Description Downstream Values Upstream Values Frequency Range 88 to 860 MHz...
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Note Cisco IOS images must contain encryption software at both the CMTS and the Cisco uBR924 router. Both routers must be enabled and properly configured to support encryption. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Appendix A Technical Specifications Voice Specifications Voice Specifications Table A-3 lists the specifications for the voice ports on the Cisco uBR924 cable access router. Table A-3 Cisco uBR924 Cable Access Router Voice Specifications Metric Value Loss (between DCS and BTI gateway) Nominal: 4 dB ±.5 dB (off hook)
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Appendix A Technical Specifications Voice Specifications Table A-3 Cisco uBR924 Cable Access Router Voice Specifications (continued) Metric Value Hybrid balance: Echo Return Loss (ERL) > 26 dB (standard test line) > 14 dB (station off hook) > 21 dB (standard test line) >...
Connector and Cable Specifications This appendix describes the pinouts and cabling requirements for the interfaces and cables used on the Cisco uBR924 router. All connectors for these interfaces are on the rear-panel, as shown in Figure B-1. Figure B-1 Cisco uBR924 Cable Access Router Connectors...
RG-6—0.041 inch (1.05 mm) center conductor diameter • All three of the coaxial cables listed can be used to connect a Cisco cable modem card to Note the HFC network; however, the consistent use of RG-59 cable is preferred. If you connect an RG-59 cable to a cable modem card that was previously connected using RG-6 cable, the difference in the center connector diameter might cause intermittent connectivity loss.
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(However, you may be able to use a straight-through cable if the hub has an uplink port; see the hub’s documentation for further details.) Figure B-2 shows the RJ-45 connector and plug used for the Cisco uBR924 router’s Ethernet ports. Table B-1 lists the pinouts and signals for the RJ-45 connector.
Voice Port Connectors This section contains pinout and connection information for the three voice ports on the Cisco uBR924 router. The V1+V2 and V2 voice connectors are part of a dual-connector package. These are symmetrical 6-pin connectors that use standard voice RJ-11 connectors and straight-through cables.
Console Port Connector and Cables The Cisco uBR924 router provides an RJ-45 serial connector for asynchronous serial console access. The console port is a DCE device, so connecting it to another DTE device, such as the serial port on a laptop PC, requires a straight-through DCE-to-DTE cable.
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If the console port is connected to a laptop computer or other PC when the Cisco uBR924 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.
The Cisco IOS software running on the Cisco uBR924 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.
To obtain support, contact your service provider. Before contacting your service provider, note the MAC address and the UID found on a label at the bottom of your Cisco uBR924 cable access router. Agency Approvals for the Cisco uBR924 The Cisco uBR924 has the following agency approvals as of the date of this publication: Safety: UL 1950, CSA 22.2 No.950, EN60950, IEC 60950, AS/NZS3260, TS001, PTC 210/99/007,...
Saudi Arabia; SASO R-200752 requirements • Safety Information Following are safety instructions that you must follow when installing a Cisco uBR924. Failure to install the unit in accordance with these instructions will invalidate the agency approvals for the Cisco uBR924 router.
The termination on a loop may consist of any combination of devices subject only to the requirement that the total REN of all the devices does not exceed 5. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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 eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
No operar el sistema ni conectar o desconectar cables durante el transcurso de descargas eléctricas en la atmósfera. Varning! Vid åska skall du aldrig utföra arbete på systemet eller ansluta eller koppla loss kablar. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Ce dispositif a été conçu pour fonctionner avec des systèmes d'alimentation TN. Warnung Das Gerät ist für die Verwendung mit TN-Stromsystemen ausgelegt. Avvertenza Il dispositivo è stato progettato per l’uso con sistemi di alimentazione TN. Advarsel Utstyret er utfomet til bruk med TN-strømsystemer. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Unngå å koble lavspenningskretser (SELV) til kretser for telenettspenning (TNV), slik at du unngår elektrisk støt. LAN-utganger inneholder SELV-kretser og WAN-utganger inneholder TNV-kretser. Det finnes både LAN-utganger og WAN-utganger som bruker RJ-45-kontakter. Vær forsiktig når du kobler kabler. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
La mise au rebut ou le recyclage de ce produit sont généralement soumis à des lois et/ou directives de respect de l'environnement. Renseignez-vous auprès de l'organisme compétent. Warnung Die Entsorgung dieses Produkts sollte gemäß allen Bestimmungen und Gesetzen des Landes erfolgen. Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
Antes de trabajar sobre cualquier sistema que carezca de interruptor de Encendido/Apagado (ON/OFF), desenchufar el cable de alimentación. Varning! Dra ur nätsladden innan du utför arbete på ett system utan strömbrytare. Cisco uBR924 Router Hardware Installation Guide C-10 OL-0338-01 (3/2000)
(incluindo anéis, fios e relógios). Os objectos metálicos aquecerão em contacto com a corrente e em contacto com a ligação à terra, podendo causar queimaduras graves ou ficarem soldados aos terminais. Cisco uBR924 Router Hardware Installation Guide C-11 OL-0338-01 (3/2000)
Omgå aldri jordingslederen og bruk aldri utstyret uten riktig montert jordingsleder. Ta kontakt med det riktige organet for elektrisk inspeksjon eller en elektriker hvis du er usikker på om det finnes velegnet jording. Cisco uBR924 Router Hardware Installation Guide C-12 OL-0338-01 (3/2000)
O não cumprimento da correcta ligação a terra do router, evitando a tomada terra trifilar ou ligando incorrectamente à terra a saída de corrente, pode ter como resultado uma situação eléctrica potencialmente perigosa. Cisco uBR924 Router Hardware Installation Guide C-13 OL-0338-01 (3/2000)
Antes de abrir la unidad, desconectar el cableado dirigido a la red telefónica para evitar contacto con voltajes de la propia red. Varning! Koppla loss ledningarna till telefonnätet innan du öppnar enheten så att kontakten med telefonnätsspänningen bryts. Cisco uBR924 Router Hardware Installation Guide C-14 OL-0338-01 (3/2000)
Este produto depende das instalações existentes para protecção contra curto-circuito (sobrecarga). Assegure-se de que um fusível ou disjuntor não superior a 240 VAC, 10A é utilizado nos condutores de fase (todos os condutores de transporte de corrente). Cisco uBR924 Router Hardware Installation Guide C-15 OL-0338-01 (3/2000)
El conjunto de clavija y toma ha de encontrarse siempre accesible ya que hace las veces de dispositivo de desconexión principal. Varning! Man måste alltid kunna komma åt stickproppen i uttaget, eftersom denna koppling utgör den huvudsakliga frånkopplingsanordningen. Cisco uBR924 Router Hardware Installation Guide C-16 OL-0338-01 (3/2000)
(OFF). Para evitar choques eléctricos, tenha o devido cuidado ao trabalhar perto das portas WAN. Ao desconectar os cabos, separe primeiro a extremidade que se encontra ligada ao dispositivo repartidor de mensagens. Cisco uBR924 Router Hardware Installation Guide C-17 OL-0338-01 (3/2000)
La conexión incorrecta de este equipo, o del equipo conectado, a una toma o receptáculo de tipo general podría resultar en una situación peligrosa. Varning! Felaktig koppling av denna eller ansluten utrustning till ett universaluttag kan orsaka riskfylld situation. Cisco uBR924 Router Hardware Installation Guide C-18 OL-0338-01 (3/2000)
The telecommunications lines must be disconnected 1) before unplugging the main Warning power connector and/or 2) while the housing is open. Waarschuwing De telecommunicatielijnen moeten verbroken worden 1) voordat de hoofdvoedingsconnector uitgeschakeld wordt en/of 2) terwijl de behuizing nog open Cisco uBR924 Router Hardware Installation Guide C-19 OL-0338-01 (3/2000)
Per ridurre il rischio di incendio, usare solo un cavo per linea di telecomunicazioni di sezione 0,12 mm (26 AWG) o maggiore. Advarsel Bruk kun AWG nr. 26 eller telekommunikasjonsledninger med større dimensjon for å redusere faren for brann. Cisco uBR924 Router Hardware Installation Guide C-20 OL-0338-01 (3/2000)
Dette utstyret inneholder en ringesignalgenerator (ringeklokke) med farlig spenning. Berør ikke RJ-11-utgangens (telefonutgangens) ledninger (lederne), lederne til den kabelen som er koplet til RJ-11-utgangen, eller tilhørende kretskort når ringeklokken er aktivert. Ringeklokken aktiveres av innkommende analoge anrop. Cisco uBR924 Router Hardware Installation Guide C-21 OL-0338-01 (3/2000)
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Denna utrustning innehåller en tongenerator (ringklocka) med farlig spänning. Vidrör inte RJ-11-portens (telefonportens) ledningar (ledarna), ledarna hos kabel som är ansluten till porten RJ-11 eller tillhörande kretskort när ringklockan är aktiverad. Ringklockan aktiveras av inkommande analoga anrop. Cisco uBR924 Router Hardware Installation Guide C-22 OL-0338-01 (3/2000)
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CATV cable 3-5, 3-7 subsystem for troubleshooting interference, radio frequency pinouts IOS images RJ-45 upgrading power connections 3-10 site requirements subsystem for troubleshooting 4-4, 4-7 jewelry, avoiding for safety surge suppression Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Voice over IP site requirements See VoIP environment VoIP power support software images upgrading SP-RFII01-990731 RF interface specification subsystems for troubleshooting Warning coaxial cable proper grounding of router Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)
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Index wiring quality and requirements Cisco uBR924 Router Hardware Installation Guide OL-0338-01 (3/2000)