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Cisco 10720 Internet Router Chassis Replacement Instructions

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Cisco 10720 Internet Router Chassis Replacement Instructions

Table Of Contents

Cisco 10720 Internet Router Chassis Replacement Instructions

Contents

Overview

Tools and Equipment Required

Safety

Safety Warnings

Disconnect Device Warnings

Electrostatic Discharge

Preventing Electrostatic Discharge

Removing the Chassis Components

Installing the Chassis Cover and Router Components

Obtaining Technical Assistance

Contacting Cisco

Cisco.com

Technical Assistance Center

Contacting TAC by Using the Cisco TAC Website

Contacting TAC by Telephone

World Wide Web

Related Documentation

Obtaining Documentation

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Electromagnetic Compliance

Electromagnetic Compatibility Regulatory Statements

FCC Class A Compliance

CISPR 22

Canada

Europe (EU)

Hungarian Class A Warning

Taiwan Class A Warning

Japan VCCI Class A

Korean Class A Warning

Site Wiring Distance and Interference Guidelines

Electromagnetic Interference

Distance Limitations for Signaling and Unshielded Conductors

Translated Safety Warnings


Cisco 10720 Internet Router Chassis Replacement Instructions


Customer Order Number: DOC-7813098=

Product Numbers: CISCO10720-AC-A=, CISCO10720-DC-A=

This publication contains instructions to replace the chassis that is automatically equipped in the Cisco 10720 Internet Router.

Refer to Cisco 10720 Internet Router Installation and Configuration Guide for more information about this product line.

This publication uses the following terminology to refer to the Cisco 10720 Internet Router and chassis:

Product Name
Reference

Cisco 10720 Internet Router

router

Cisco 10720 Internet Router chassis with dual AC or DC power supply

chassis


Contents

Overview

Tools and Equipment Required

Safety

Safety Warnings

Disconnect Device Warnings

Electrostatic Discharge

Removing the Chassis Components

Installing the Chassis Cover and Router Components

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Contacting TAC by Using the Cisco TAC Website

Contacting TAC by Telephone

World Wide Web

Contacting Cisco

Related Documentation

Obtaining Documentation

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Electromagnetic Compliance

Translated Safety Warnings

Overview

The Cisco 10720 Internet Router chassis houses the access and uplink cards, power supply, and fan assembly. A replacement chassis comes equipped with a dual power supply and fan assembly.

Tools and Equipment Required

You will need the following tools and equipment to replace the router chassis:

ESD-preventive wrist strap

Number 1 Phillips screwdriver

Antistatic bag (optional)

Replacement Cisco 10720 Internet Router chassis

1/8-inch flat-blade screwdriver

Safety

This publication contains important safety information that you must read and understand before attempting to install, remove, or modify any hardware in your router. For more safety information, see the "Electromagnetic Compliance" section and the "Translated Safety Warnings" section.

For information about regulatory compliance and safety, see the Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router publication that shipped with your router.

Please review the safety guidelines in the following sections to avoid injuring yourself or damaging the equipment:

Safety Warnings

Disconnect Device Warnings

Safety Warnings

Before replacing the power supply, note the following safety warnings:


Caution This router is equipped with a redundant power supply. Ensure both power supply connections are disconnected before beginning any procedure.


Warning Read the installation instructions before you connect the system to its power source.



Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.



Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals.


For more safety information about your Cisco 10720 Internet Router, refer to the Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router guide that shipped with your router.

Disconnect Device Warnings

The Cisco 10720 Internet Router power source must be disconnected before performing any maintenance task on the hardware modules. Please refer to the safety warnings in the "Powering Down the Router" section of Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.

Electrostatic Discharge

Electrostatic discharge (ESD) can damage circuit boards and other electronic equipment if they are handled improperly. Such mishandling can result in intermittent or complete failures of the board or other components of the router.

When handling router components, observe the following guidelines to prevent ESD damage:

Always use an ESD-preventive wrist strap and ensure that the strap makes adequate contact with your skin.

Attach an ESD-preventive wrist strap to your wrist and to the chassis; or to a bare metal surface. (See Figure 1.)

The ESD-preventive wrist strap protects equipment from ESD voltages on the body only; ESD voltages on clothing can still cause damage to electronic components.


Caution For safety, periodically check the resistance value of the ESD-preventive wrist strap. The resistance measurement should be between 1 and 10 megohms.

Preventing Electrostatic Discharge

Electrostatic discharge (ESD) damage can cause complete or intermittent equipment failures. Cisco recommends using an ESD-preventive strap when you handle a router or one of its components. Electromagnetic interference (EMI) shielding is an integral component of the router.

Following are guidelines for preventing ESD damage:

Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Connect the equipment end of the connection cord to bare metal on the router chassis. (See Figure 1.)

Figure 1 Attaching an ESD-Preventive Strap

Avoid contact between the component and clothing. The wrist strap protects the component only from ESD voltages on the body; ESD voltages on clothing can still cause damage.

Removing the Chassis Components

To replace the chassis of the router, perform the following steps:


Step 1 Attach an ESD-preventive strap to your wrist and to the router; or to a bare metal surface. (See the "Preventing Electrostatic Discharge" section.)

Step 2 If installed, remove the cable-management cover in order to be able to turn the power switch on the router off by removing the four screws that secure the cable-management cover to the router. (See Figure 2.)

Figure 2 Removing the Cable-Management Cover

Step 3 Power down the router. (Refer to Chapter 5, "Maintaining the Cisco 10720 Internet Routerr", in the Cisco 10720 Internet Router Installation and Configuration Guide.)

Step 4 Remove all interface cables from the access card (see Figure 3) and uplink card (see Figure 4).

Figure 3 Removing Interface Cables From Access Card

1

Access card interface cable connector


Figure 4 Removing Interface Cables From Uplink Card

1

Uplink card interface cable connector


Step 5 Remove the chassis system grounding cable (if installed). (Refer to Chapter 3, "Installing the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.)

Step 6 Remove the router from the wall or rack mount (if mounted). (Refer to Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.)

Step 7 Remove the cable-management tray from the router by removing the four screws that secure the cable-management tray to the router. (See Figure 5.)

Figure 5 Removing the Cable-Management Tray

Step 8 Remove the access card (see Figure 6) and uplink card (see Figure 7) from the router. For more detailed information, refer to Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.

Figure 6 Removing Access Card from Router Chassis

Figure 7 Removing Uplink Card from Router Chassis


Installing the Chassis Cover and Router Components

To replace the router cover, perform these steps:


Step 1 Ensure that the chassis is equipped with the correct power supply and that it has been properly installed properly. You can verify that the power supply is properly installed by referring to Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.)

Step 2 Install the access card (see Figure 8) and uplink card (see Figure 9) in the router. For more detailed information, refer to Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.

Figure 8 Inserting the Access Card in the Router Chassis

Figure 9 Inserting the Uplink Card in the Router Chassis

Step 3 Reinstall and secure the cable-management tray to the router by two screws on each side of the router chassis. (See Figure 10.)

Figure 10 Attaching the Cable-Management Tray

Step 4 Reinstall the router on a rack, wall, desktop, or table and reconnect all interface cables to the uplink card and access card. (See Figure 11 for an example of a rack mounted router.)

Figure 11 Cable-Management Installed in the Rack

Step 5 Reconnect the AC power cord or rewire the DC power supply as follows:

For an AC power supply, connect AC power cord. (See Figure 13.)

For a DC power supply, connect the DC leads to the terminal block as follows:

Insert the safety ground (green wire) into the terminal block ground connector and tighten the locking screw. Ensure that no bare wire is exposed. (See Figure 12.)

Insert the +48 VDC wire (white wire) into the terminal block positive connector (+) and tighten the locking screw. Ensure that no bare wire is exposed. (See Figure 12.)

Insert the -48 VDC wire (black wire) into the terminal block negative connector (-) and tighten the locking screw. Ensure that no bare wire is exposed. (See Figure 12.)


Note Make sure the power supply leads are secured with a cable tie on the DC power supply.


Figure 12 Connecting Terminal Block to Power Leads

a

Ground lead disconnected

b

Positive lead connected

c

Negative lead connected


Figure 13 Attaching the AC Power Cord to the Router


Warning After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position.


Step 6 Connect the router to the main power source. (See Figure 14.)

Figure 14 Connecting the Router to the Power Source

Step 7 Reconnect the chassis system grounding cable to the router. (Refer to Chapter 3, "Installing the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.)

Step 8 Power up (O) the router as described in Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide. (See Figure 15.) The internal power supply fan should power on and the power LEDs on the power supply, access card, and uplink card should illuminate.


Warning After wiring the DC power supply, remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of the circuit breaker to the ON position.


Figure 15 Press Router Switch to ON Position

Step 9 Install the cable-management system to protect interface cables from stress and excessive bends. (Refer to Chapter 5, "Maintaining the Cisco 10720 Internet Router", in the Cisco 10720 Internet Router Installation and Configuration Guide.) (See Figure 16.)

Figure 16 Installing the Cable-Management Cover


Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.

Technical assistance information is presented in the following sections:

Contacting Cisco

Technical Assistance Center

World Wide Web

Contacting Cisco

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.

Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, 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 Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.

To access Cisco.com, go to the following website:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.

Contacting TAC by Using the Cisco TAC Website

If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:

http://www.cisco.com/tac

P3 and P4 level problems are defined as follows:

P3—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

P4—You need information or assistance on Cisco product capabilities, product installation, or basic product configuration.

In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.

To register for Cisco.com, go to the following website:

http://www.cisco.com/register/

If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:

http://www.cisco.com/tac/caseopen

Contacting TAC by Telephone

If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

P1 and P2 level problems are defined as follows:

P1—Your production network is down, causing a critical impact to business operations if service is not restored quickly. No workaround is available.

P2—Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at the following sites:

http://www.cisco.com

http://www-china.cisco.com

http://www-europe.cisco.com

Related Documentation

The following section provides some reference material out of the Cisco.com library that may be useful for configuring and maintaining the Cisco 10720 Internet Router:

Cisco 10720 Internet Router Installation and Configuration Guide

Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router

Obtaining Documentation

The following sections provide sources for obtaining documentation from Cisco Systems. Access to documentation is presented in the following sections:

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and might be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Cisco documentation is available in the following ways:

Registered Cisco Direct Customers—Can order Cisco Product documentation from the Networking Products MarketPlace:

http://www.cisco.com/cgi-bin/order/order_root.pl

Registered Cisco.com users—Can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

Nonregistered Cisco.com users—Can order documentation through a local account representative by calling Cisco:

408 526-7208

North America—800 555-NETS(6387)

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.

You can e-mail your comments to bug-doc@cisco.com.

To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address:

Attn. Document Resource Connection
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Electromagnetic Compliance

Safety compliance information is presented in the following sections:

Electromagnetic Compatibility Regulatory Statements

Site Wiring Distance and Interference Guidelines

Electromagnetic Compatibility Regulatory Statements

FCC Class A Compliance

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

Modifying the equipment without Cisco's authorization may result in the equipment no longer complying with FCC requirements for Class A digital devices. In that event, your right to use the equipment may be limited by FCC regulation and you may be required to correct any interference to radio or television communication at your own expense.

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:

Turn the television or radio antenna until the interference stops.

Move the equipment to one side or the other of the television or radio.

Move the equipment farther away from the television or radio.

Plug the equipment into an outlet that is on a different circuit from the television or radio. (In other words, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

CISPR 22


Warning This is a class A product. In a domestic environment, this product may cause radio interference, in which case, the user may be required to take adequate measures.



Note For CISPR 22 class B, the use of shielded (i.e. screened) CAT5 or equivalent Ethernet cable is required.



Note This apparatus complies with EN55022 class B conducted emissions requirements on AC main with unshielded or shielded CAT5 Ethernet cabling (i.e. does not require the use of shielded Ethernet cable to meet this requirement.)


Canada

English Statement of Compliance

This class A digital apparatus complies with Canadian ICES-003.

French Statement of Compliance

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

Europe (EU)

This apparatus complies with EN55022 Class A and EN55024 standards when used as ITE/TTE equipment, and EN 300 386-2 (EN55022 class B with shielded CAT5 Ethernet cable, non-central office equipment) for Telecommunications Network Equipment (TNE).

Hungarian Class A Warning

Figyelmeztetés a felhasználói kézikönyv számára:

Ez a berendezés "A" osztályú termék, felhasználására és üzembe helyezésére a magyar EMC "A" osztályú követelményeknek (MSZ EN 55022) megfelelõen kerülhet sor, illetve ezen "A" osztályú berendezések csak megfelelõ kereskedelmi forrásból származhatnak, amelyek biztosítják a megfelelõ speciális üzembe helyezési körülményeket és biztonságos üzemelési távolságok alkalmazását.

This equipment is a class A product and should be used and installed properly according to the Hungarian EMC Class A requirements (MSZEN55022). The Class A equipment are derived for typical commercial establishments for which special conditions of installation and protection distance are used.

Taiwan Class A Warning

This is a class A product. In a domestic environment this product may cause radio interference in which case you may be required to take adequate measures.


Note Bureau of Standards, Metrology and Inspection (BSMI) product approval license number is on the product label outside the system enclosure.


Japan VCCI Class A

This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions.

Korean Class A Warning

Class A device. This device is registered for EMC requirements for industrial use. The seller or buyer should be aware of this. If this type was sold or purchased by mistake, it should be replaced with a residential-use type.

Site Wiring Distance and Interference Guidelines

This section offers site wiring guidelines for setting up the site plant wiring and cabling. When planning the location of the new system, consider the following:

Electromagnetic Interference

Distance Limitations for Signaling and Unshielded Conductors

Electromagnetic Interference

Electromagnetic interference can occur between the field and the signals on the wires when the wires are run for any significant distance. This fact has two implications for the construction of plant wiring:

Poor wiring practice can result in radio interference emanating from the plant wiring.

Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy and/or cause interference with the signal drivers and receivers in the Cisco 10720 Internet Router, and can create an electrical hazard by conducting power surges through lines and into equipment.


Note To predict and remedy strong EMI, consult experts in radio frequency interference (RFI).


A good quality twisted pair cable or shielded twisted pair cable helps limit radiation and noise induced into the cable minimizing,

Potential for radio interference.

Potential for interference with the data transmission.

Distance Limitations for Signaling and Unshielded Conductors

Give special consideration to the effect of a lightning strike in the site vicinity if wires exceed recommended distances, or if wires pass between buildings. The electromagnetic pulse (EMP) caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices.

Provide a properly grounded and shielded environment. Consider electrical surge suppression issues by addressing the following items:

Potential surge sources

Distance


Caution Splicing can degrade cable performance.

Translated Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. The following paragraph is an example of a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard. The remaining paragraphs in this section are translations of the initial safety warning.


Note For a complete list of translated safety warnings, read the Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router document that accompanies your Cisco 10720 Internet Router. We recommend that you read and understand the safety warnings and guidelines before installing, configuring or maintaining the router.

Table 1 Translated Safety Warnings 

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 circuitry and be familiar with standard practices for preventing accidents. (To see translations of the warnings that appear in this publication, refer to the appendix "Translated Safety Warnings" in the installation guide that accompanied this device.)

Waarschuwing

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. 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 "Translated Safety Warnings" (Vertalingen van veiligheidsvoorschriften) in de installatiegids die bij dit toestel is ingesloten, raadplegen.

Varoitus

Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. (Tässä julkaisussa esiintyvien varoitusten käännökset löydät tämän laitteen mukana olevan asennusoppaan liitteestä "Translated Safety Warnings" (käännetyt turvallisuutta koskevat varoitukset).)

Attention

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures. Avant d'accéder à cet équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures courantes de prévention des accidents. Pour obtenir les traductions des mises en garde figurant dans cette publication, veuillez consulter l'annexe intitulée « Translated Safety Warnings » (Traduction des avis de sécurité) dans le guide d'installation qui accompagne cet appareil.

Warnung

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. (Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Anhang mit dem Titel "Translated Safety Warnings" (Übersetzung der Warnhinweise) in der diesem Gerät beiliegenden Installationsanleitung.)

Avvertenza

Questo simbolo di avvertenza indica un pericolo. Si è in una situazione che può causare infortuni. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nell'appendice, "Translated Safety Warnings" (Traduzione delle avvertenze di sicurezza), del manuale d'installazione che accompagna questo dispositivo.

Advarsel

Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid 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 "Translated Safety Warnings" [Oversatte sikkerhetsadvarsler] i installasjonsveiledningen som ble levert med denne enheten.)

Aviso

Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos fisicos. 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. (Para ver as traduções dos avisos que constam desta publicação, consulte o apêndice "Translated Safety Warnings" - "Traduções dos Avisos de Segurança", no guia de instalação que acompanha este dispositivo).

¡Advertencia!

Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. (Para ver traducciones de las advertencias que aparecen en esta publicación, consultar el apéndice titulado "Translated Safety Warnings," en la guía de instalación que se acompaña con este dispositivo.)

Varning!

Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. 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 "Translated Safety Warnings" [Översatta säkerhetsvarningar] i den installationshandbok som medföljer denna anordning.)



Copyright © 2003 Cisco Systems, Inc. All rights reserved.