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Cisco 12012 DC-Input Power Supply Replacement Instructions

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Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions

Table Of Contents

Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions

Product Overview

DC-Input Power Supply LEDs

Safety Guidelines

Safety Warnings

Safety with Equipment

Safety with Electricity

Preventing Electrostatic Discharge Damage

Tools and Parts Required

Removing and Replacing a DC-Input Power Supply

Removing a Power Supply

Replacing a Power Supply

Checking the Installation

FCC Class A Compliance

Cisco Connection Online


Cisco 12012 Gigabit Switch Router DC-Input Power Supply Replacement Instructions


Product Number: PWR-GSR12-DC=
Document Order Number: DOC-784330=

This document contains instructions for installing or replacing a DC-input power supply in the Cisco 12012 Gigabit Switch Router (GSR).

The sections of this document include the following:

Product Overview

Safety Guidelines

Tools and Parts Required

Removing and Replacing a DC-Input Power Supply

Checking the Installation

FCC Class A Compliance

Cisco Connection Online

Product Overview

The Cisco 12012 has two card cages; the upper card cage and the lower card cage. (Refer to .) The upper card cage has 12 user-configurable slots available for line cards and a route processor (RP). One additional slot (rightmost slot) in the upper card cage is non-configurable; it is reserved for an alarm card. The line cards and the RP are not slot dependent; you can install the line cards and the RP in any of the first 12 available slots.

Figure 1 Cisco 12012—Front View

The lower card cage, located behind the air filter, has five horizontal slots for switch fabric cards.

The Cisco 12012 supports up to two DC-input power supplies in a power supply bay located below the lower card cage. (Refer to .) The power supply bay is divided into four positions designated A1, A2, B1, and B2 (from left to right). Cisco 12012 systems come standard with one DC-input power supply installed in power supply bay positions A1 and A2. Power supply bay positions B1 and B2 have power supply blanks installed to maintain airflow and for EMI considerations. You can install a second DC-input power supply in power supply bay positions B1 and B2 for power supply redundancy and current sharing.


Caution   
Do not mix DC-input and AC-input power supplies in the same Cisco 12012. This configuration is not supported and can cause system damage.

In systems with redundant power (two DC-input power supplies), you can install, remove, or replace one of the power supplies without affecting system operation. When power is removed from one power supply, the redundant power supply maintains uninterrupted system operation.

The DC-input power supply is a modular unit measuring 7.8-inches (20-cm) wide by 10-inches (25.4-cm) wide by 15-inches (38-cm) deep and weighing 19 lb (8.6 kg). (Refer to .) The power supply slides in and out of the power supply bay and is secured in place by a combination of a single captive jackscrew on the power supply faceplate and a latch, which is part of the power on/off switch also located on the power supply faceplate.

Figure 2 Cisco 12012 DC-Input Power Supply

Electrical and control line connections between the power supply and the Cisco 12012 backplane are made through a connector located at the back of the power supply. A three-lead terminal block mounted on the power supply faceplate provides connection points for an external circuit breaker alarm circuit. The source DC power cable attaches to the power supply through three pairs of threaded terminals (negative (-), positive (+), and ground) located on the power supply faceplate.

lists the DC-input power supply power specifications.

Table 1

Specification
Nominal Value
Acceptable Value Ranges

DC input voltage

-48/-60 VDC1

-40.5 to -56 VDC (United States)

-58 to -75 VDC (International)

Source DC service requirement

60amp (A)

-

DC output voltages

+5.2 and -48 VDC

+5.35 to +5.0 VDC
-75 to -40.5 VDC

1 VDC = volts direct current.


DC-Input Power Supply Power Specifications

The source DC power cable leads and lugs from the source DC service circuit breaker to the power supply must meet the following requirements:

Three power cables—4 AWG (American Wiring Guide), 0.204-inch (5.18-mm) diameter, high strand count. The cable length is dependent on your router location. This cable is not available from Cisco Systems: it is available from any commercial cable vendor.

Three power lugs—Must be dual-hole with .625-inch (15.86-mm) centers and able to fit over M6 threaded terminals. (Refer to .) This type of lug is not available from Cisco Systems; electrical-connector vendors, such as Panduit, provide this type of lug.

Figure 3 Source DC Power Cable Lug

DC-Input Power Supply LEDs

The faceplate of the DC-input power supply has two LEDs: a green input OK LED and a red output fail LED. (Refer to .)

Figure 4 DC-Input Power Supply LEDs

The LEDs indicate the following:

Input OK LED—When the power switch is turned on, this green LED should go on immediately, indicating that the source DC voltage is within the operational range of -40.5 to -75 VDC. If the power switch is on and the LED remains off, either the source voltage is not present or exceeds the operational range.

Output fail LED—If this red LED is on, one or both of the power supply output voltages (+5 and -48 VDC) is out of tolerance. When the power supply is first turned on, the output fail LED blinks on and off for five seconds, then turns off. If the LED stays on, a fault has been detected within the power supply.

Safety Guidelines

Before you begin the replacement procedure, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment. This section also repeats in multiple languages the warnings in this document.

In addition, review the safety warnings listed in the document Regulatory Compliance and Safety Information for the Cisco 12012 Gigabit Switch Router (Document Number 78-4347-xx) that supports your Cisco 12012 before installing, configuring, or maintaining the router.

Safety Warnings

Following are translations for the warning statements used in this document:

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 Regulatory Compliance and Safety Information document 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 document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

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 laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Attention  Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) 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 Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Avvertenza  Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. 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 nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) 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 vare 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 dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

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 eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) 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 una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) 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 förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.

Safety with Equipment

The following guidelines will help ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations, so be alert.

Always disconnect all power cords and interface cables before moving the system.

Keep tools and components away from walk areas.

Do not work alone if potentially hazardous conditions exist.

Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.

Safety with Electricity

The line cards, route processor (RP), switch fabric cards, blower modules, and redundant power supplies are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system.

Follow these basic guidelines when working with any electrical equipment:

Before beginning any procedures requiring access to the interior of the Cisco 12012, locate the emergency power-off switch for the room in which you are working.

Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, and missing safety grounds.

If an electrical accident occurs, proceed as follows:

Use caution; do not become a victim yourself. Disconnect power to the system.

If possible, send another person to get medical aid. Otherwise, assess the condition of the victim and then call for help.

Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate action.

Disconnect all power and external cables before installing or removing a router.

Never assume that power has been disconnected from a circuit; always check.

Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

Never install equipment that appears damaged.

In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source, but still connected to telephone or network wiring:

Never install telephone wiring during a lightning storm.

Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

Use caution when installing or modifying telephone lines.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic boards or components are handled improperly, can result in intermittent or complete failures.

Following are guidelines for preventing ESD damage:

Always use an ESD-preventive wrist strap or ankle strap and ensure that it makes good skin contact.

When removing or installing a DC-input power supply, connect the equipment end of a ground strap to one of the two ESD connection sockets on the front edge of the upper card cage, or to a bare metal surface such as the router frame.

If you are returning a replaced part to the factory, immediately place it in a static shielding bag to avoid ESD damage.

The wrist strap only protects the board from ESD voltages on the body; ESD voltages on clothing can still cause damage.


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

Tools and Parts Required

You need the following tools and parts to install or replace a DC-input power supply:

ESD-preventive wrist strap

3/16-inch flat-blade screwdriver

1/4-inch flat-blade screwdriver

10-mm nutdriver

Voltmeter

Electrical tape

The replacement DC-input power supply (Product Number PWR-GSR12-DC=) and the DC-input power supply front cover (supplied with the power supply)


Note   If you are upgrading your Cisco 12012 with a second DC-input power supply, you must supply the source DC power cable and terminal lugs needed to connect source DC power to the DC-input power supply. These components are not available from Cisco Systems.


Removing and Replacing a DC-Input Power Supply

The Cisco 12012 supports up to two DC-input power supplies. In systems with dual power supplies, if one power supply fails, the remaining power supply maintains uninterrupted operation of the router while you replace the defective supply.


Caution   
Before performing any of the following procedures, ensure that power is removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit breaker in the OFF position.

Removing a Power Supply

Perform the following steps to remove a DC-input power supply:


Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.

Step 2 If you have not already done so, turn OFF (O) the power switch on the DC-input power supply.


Note   Turning the power supply switch to OFF (O) releases a latch that secures the power supply in the power supply bay.



Warning   

Voltages might be present on the DC-input power supply terminals. Turn off the power source circuit breaker and remove the power supply before accessing the terminals.


Step 3 Locate and turn off the source DC circuit breaker that services the power supply you want to remove. As an added precaution, tape the circuit breaker handle in the off position.

Step 4 Using a flat-blade screwdriver or a 10-mm nutdriver, turn the captive jackscrew counterclockwise (eject) to unseat the power supply from the backplane power connector. Continue turning the jackscrew to disengage the jackscrew from the power supply bay.

Step 5 Grasp the power supply handle and slide the power supply halfway out of the bay. (Refer to .)

Figure 5 Removing a DC-Input Power Supply


Caution   
The DC-input power supply weighs 19 lb (8.3 kg). Use two hands when handling the power supply.

Step 6 Place your free hand underneath the power supply for support and slide the power supply completely out of the bay. Place the power supply face up on the floor in front of you.

Step 7 Loosen the two screws securing the DC-input power supply front cover in place. Lift up slightly, then pull the front cover away from the power supply faceplate. Set the front cover aside. (Refer to .)

Figure 6 Removing the DC-Input Power Supply Front Cover

Step 8 Remove the two screws that secure the power cable bracket to the power supply faceplate and remove the cable bracket. (Refer to .) Set the bracket and screws aside.

Figure 7 Removing the Power Cable Bracket


Caution   
Before proceeding to the next step, verify that the source DC circuit breaker servicing the DC power supply you are removing is in the OFF position. Also verify that the power switch on the DC-input power supply is OFF (O). As an additional check, measure the voltages across the leads attached to the power supply you have removed. All readings should be zero volts.

Step 9 Remove the outer nut and washer from each terminal and disconnect the source DC power cable leads from the power supply lugs in the following order: negative (-), positive (+), and ground. (Refer to .)

Figure 8 Disconnecting the DC-Input Power Supply

Step 10 Pull the DC power cable leads down through the power supply handle and set the power cable aside.


Caution   
As an added precaution, we strongly recommend that you place tape over the exposed metal terminals on the power cable to prevent accidental contact between the leads or the leads and ground.

Step 11 If leads are attached to the power supply circuit breaker external alarm terminal block, record on a piece of paper which terminals the leads are attached to for later connection.

Step 12 Disconnect the leads attached to the circuit breaker alarm terminal block. (Some sites might not have an external alarm system for the power supply circuit breaker.)

If you plan to return the old power supply to the factory, repackage it in the shipping container you received with the replacement power supply.

Replacing a Power Supply

This procedure provides the steps necessary to replace a defective DC-input power supply or install a second DC-input power supply. If you are upgrading your Cisco 12012 with a second DC-input power supply for power supply redundancy, you must meet the following site power and source DC power cable requirements prior to installing the second supply:

A dedicated 60-amp service is available for the second power supply.

Three power cables—4 AWG, 0.204-inch (5.18-mm) diameter, high strand count. The cable length is dependent on your router location. This cable is not available from Cisco Systems: it is available from any commercial cable vendor.

Three power lugs—Must be dual-hole with .625-inch (15.86-mm) centers and able to fit over M6 threaded terminals. (Refer to .) This type of lug is not available from Cisco Systems; electrical-connector vendors, such as Panduit, provide this type of lug.

If you are upgrading your Cisco 12012 with a second DC-input power supply, you must remove the two power supply blanks covering the empty power supply bays before installing the power supply.

Perform the following steps to install a new or replacement DC-input power supply:


Caution   
The DC-input power supply weighs 19 lb (8.3 kg). Use two hands when handling the power supply.


Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.

Step 2 Remove the replacement DC-input power supply from its shipping container.

Step 3 Verify that the power switch on the replacement power supply is in the OFF (O) position.

Step 4 Loosen the two screws that secure the DC-input power supply front cover in place. Lift up slightly, then pull the front cover away from the power supply faceplate. Set the front cover aside. (Refer to .)

Step 5 Remove the two screws that secure the source DC power cable bracket to the power supply faceplate and remove the bracket.


Caution   
Before proceeding to the next step, verify that the source DC circuit breaker servicing the DC power supply you are removing is in the OFF position. Also verify that the power switch on the DC-input power supply is OFF (O). As an additional check, measure the voltages across the DC power cable leads you intend to attach to the power supply. All readings should be zero volts.

Step 6 Thread the source DC power cable leads up underneath the power supply handle. Allow sufficient slack in the power cable for strain relief.


Note   The color coding of the source DC power cable leads to the DC-input power supply depends on the color coding of the site DC power source. Typically, green or green/yellow is used for ground. Since there is no color code standard for the source DC wiring, care must be taken to ensure that the proper polarity is connected to the DC-input power supplies. In some cases the input cables might have a (+) and a (-) label. This is a relatively safe indication of the polarity. However, you must verify the polarity by making a voltage measurement before you turn the power supply on. When making the measurement, the positive (+) lead and the negative (-) lead must always match the (+) and (-) labels on the power supply.



Warning   

When installing the unit, the ground connection must always be made first and disconnected last.


Step 7 Remove the outer nut and locking washer from each power supply terminal and attach the source DC power cable lugs to the power supply terminals in the following order: ground to ground, positive to positive (+), and negative to negative (-).

Step 8 If your site is equipped with an external power supply circuit breaker alarm, thread the power supply circuit breaker external alarm leads up through the power supply handle and attach them to the circuit breaker alarm terminal block on the power supply faceplate according to the notes you made in a previous step. (Some sites might not be equipped with a power supply circuit breaker external alarm.)

Step 9 Position the source DC power cable leads underneath the power supply handle on the power supply faceplate in the following order from left to right: negative (-), positive (+), and ground. Place the DC power cable bracket over the power cable leads and secure the cable leads and the cable bracket to the power supply faceplate with the two screws that you removed earlier.

Step 10 Verify that the source DC wiring from the source DC breaker to the power supply is correct and that the terminal connections on the power supply are correct and tight.


Note   You must make the verification with a calibrated DC voltmeter. Always connect the positive (+) and negative (-) leads to the corresponding positive (+) and negative (-) leads on the power supply.


Step 11 Place the power supply front cover so that the keyholes are positioned over the two standoff screws on the power supply faceplate. Slide the cover down slightly to engage the two screws and secure it in place by tightening the two screws.

Step 12 If you are upgrading your Cisco 12012 with a second DC-input power supply, you must remove the two power supply blanks covering the empty power supply bay slots before installing the power supply. To remove a power supply blank:

(a) Loosen the captive screw on the power supply blank faceplate that secures the power supply blank to the card cage assembly.

(b) Slide the power supply blank out the front of the power supply bay.

(c) Repeat steps (a) and (b) to remove the second power supply blank. Retain the two power supply blanks for possible future use.


Caution   
To prevent damaging the backplane power connector, do not use excessive force when sliding the power supply into the bay slot.

Step 13 Using two hands to support and guide the power supply, carefully slide it into the vacant bay. Stop when the power supply captive jackscrew makes contact with the front of the power supply bay.


Note   The captive jackscrew is used to align and draw the power supply connector into the backplane connector. To prevent connector alignment problems, apply even pressure on the power supply handle as you turn the captive jackscrew.


Step 14 Keep one hand on the power supply handle and apply even pressure to the power supply as you turn the captive jackscrew clockwise (insert) using a 10-mm nutdriver or flat-blade screwdriver. Do not overtighten the jackscrew.


Note   All electrical connections between the power supply and the backplane are made automatically when the power supply is fully inserted in the power supply bay.


Step 15 Turn on the source DC circuit breaker servicing the DC-input power supply.


Note   Do not turn on the DC-input power supply at this time.


This completes the DC-input power supply replacement procedure.

Proceed to the following section, "Checking the Installation," to verify the installation.

Checking the Installation

To complete the installation, turn ON (|) the power supply and observe the LEDs on the faceplate to verify that the power supply is operating properly. Then perform the following steps to check the installation:


Note   Turning the power supply switch to ON (|) engages a latch that secures the power supply in the power supply bay.



Step 1 Check the following components to make sure they are secure:

Each power supply is inserted all the way into its bay, and the captive jackscrew is tightened.

Any unused power supply bay slots have power supply blanks installed.

All source DC power cables are securely attached to the power supply threaded terminals.

At the DC power-source end of the power cable, the cable is securely attached to the source DC circuit breaker.

The source DC voltage is within the range indicated on the power supply faceplate.

When two supplies are installed, each power cable must be connected to a separate 60-amp DC service.

Step 2 Verify that the Cisco 12012 powers up correctly. Visually check that the power supply input OK LED goes on and stays on.

Step 3 Visually check that the power supply output fail LED flashes on and off for five seconds, then goes off.

If this output fail LED remains on, suspect a power supply failure or an adverse environmental condition (the power supply has detected an overvoltage or overtemperature condition and has shut down).

If two power supplies are installed, and the output fail LED goes on only on one power supply, assume that the power supply or DC source (for that power supply) is faulty.

If the output fail LED lights on two power supplies that are connected separate DC sources, assume that an overvoltage or overtemperature condition is causing the power supplies to fail.

If the power supply fails to operate properly after several attempts to power it up, contact a service representative for assistance.

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.

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. (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.

Cisco Connection Online

Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.

CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.

You can access CCO in the following ways:

WWW:  http://www.cisco.com

WWW:  http://www-europe.cisco.com

WWW:  http://www-china.cisco.com

Telnet:  cco.cisco.com

Modem:  From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and connection rates up to 28.8 kbps.

For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.


Note   If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact Cisco's Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.


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