Cisco 3631 User Manual

Installing Power Supplies in Cisco 3631 Routers

Product Numbers: PWR-3631-AC=, PWR-3631-DC=

This document describes how to replace the AC or DC power supply in a Cisco 3631 router.

This document is intended for the power supply installer, who should be familiar with electronic circuitry and wiring practices and have experience as an electronic or electromechanical technician. Use this document in conjunction with the Cisco 3600 Series Hardware Installation Guide and the Regulatory Compliance and Safety Information document for your router.

If you have questions or need help, refer to the “Obtaining Technical Assistance” section on page 21.

This document contains the following sections:

• Safety Recommendations, page 2

• Overview of Cisco 3631 Power Supplies, page 6

• Required Tools and Equipment, page 6

• Accessing the Power Supply, page 7

• Replacing the Cisco 3631 Power Supply, page 7

• Electrical Connections for Cisco 3631 Routers, page 15

• Troubleshooting, page 20

Warning

• Obtaining Documentation, page 20

• Obtaining Technical Assistance, page 21

Only trained and qualified personnel should be allowed to install or replace this equipment. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Safety Recommendations

Warning

Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

The following warning applies to routers with a DC power supply:

Warning

Caution To avoid damaging electrostatic discharge (ESD)-sensitive components, ensure that you have

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. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Ultimate disposal of this product should be handled according to all national laws and regulations. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

discharged all static electricity from your body before opening the chassis. Before performing procedures described in this document, review the next section, “Safety Recommendations.”

Safety Recommendations

Follow these guidelines to ensure general safety:

• Keep the chassis area clear and dust-free during and after installation.

• Place the removed chassis cover in a safe place.

• Keep tools away from walk areas where you or others could fall over them.

• Do not wear loose clothing that may get caught in the chassis. Fasten your tie or scarf and roll up

your sleeves.

• Wear safety glasses when working under conditions that may be hazardous to your eyes.

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

Warning

The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware. Any hardwired connection (other than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

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Safety Recommendations

Warning

The Ethernet 10BaseT, Token Ring, serial, console, and auxiliary ports contain safety extra-low voltage (SELV) circuits. BRI circuits are treated like telephone-network voltage (TNV) circuits. Avoid connecting SELV circuits to TNV circuits. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Safety with Electricity

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. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Follow these guidelines when working on equipment powered by electricity:

• Locate the room’s emergency power-off switch. Then, if an electrical accident occurs, you can

quickly shut the power off.

• Before working on the system, turn off the power and unplug the power cord.

• Disconnect all power before doing the following:

–

Working on or near power supplies

–

Installing or removing a router chassis or network processor module

–

Performing most hardware upgrades

• Do not work alone if potentially hazardous conditions exist.

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power

extension cables, and missing safety grounds.

• Never assume that power is disconnected from a circuit. Always check.

• If an electrical accident occurs, proceed as follows:

–

Use caution, and do not become a victim yourself.

–

Turn off power to the system.

–

If possible, send another person to get medical aid. Otherwise, determine 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.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when electronic printed circuit cards are improperly handled and can result in complete or intermittent failures. Always follow ESD prevention procedures when removing and replacing cards. Ensure that the router chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely

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Installing Power Supplies in Cisco 3631 Routers

Safety Recommendations

channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist strap is available, ground yourself by touching the metal part of the chassis.

Caution For safety, periodically check the resistance value of the antistatic strap, which should be between 1

and 10 megohms (Mohms).

Safety Regulations

Warning Definition

Warning

Waarschuwing

Varoitus

Attention

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.

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.

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).

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

Installing Power Supplies in Cisco 3631 Routers

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.

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FCC Class A Compliance

Avvertenza

Advarsel

Aviso

¡Advertencia!

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.

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.

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.

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.

FCC Class A Compliance

The equipment described in this document generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class A digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

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.

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Installing Power Supplies in Cisco 3631 Routers

Required Tools and Equipment

• 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 that 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.

Required Tools and Equipment

Installation might require some tools and equipment that are not provided as standard equipment with the router. Following are the tools and parts required for a typical router installation:

• Number 2 Phillips screwdriver

• ESD-preventive wrist strap

Overview of Cisco 3631 Power Supplies

Figure 1 shows AC and DC power supplies for Cisco 3631 routers.

Figure 2 shows the location of the power supply in Cisco 3631 routers. The AC or DC power supply

occupies the same location in the router.

Figure 1 Cisco 3631 AC and DC Power Supplies

AC power supply

Figure 2 Power Supply Location in the Cisco 3631 Router

AIC-64

3 1

7 3 0

6 2 9

A S

2 8

1 5

1 1 4

0 1 3

Y N

1 2

STAT

2 3

2 2

2 1

2 0

1 9

1 8

1 7

1 6

S E

E M

N U

A L B

R E

INS

LLA

TIO

6 K

S EE

A N

U A

L B

E FO

R E IN

S TA

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DC power supply

62510

62468

Power supply

Power Requirements for the Cisco 3631 Router

The following power requirements apply to the Cisco 3631 router:

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Accessing the Power Supply

To access power supplies on the Cisco 3631 router, remove the router cover as described in the “Removing

the Router Cover” section on page 8.

Replacing the Cisco 3631 Power Supply

Warning

Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Warning

Network hazardous voltages are present in the BRI cable. If you detach the BRI cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), regardless of when power is turned off. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Replacing the Cisco 3631 Power Supply

The power supply and cabling for the Cisco 3631 router is contained inside the chassis. To replace the power supply, complete these procedures:

• Removing the Router Cover, page 8

• Removing the Cisco 3631 Power Supply, page 9

• Installing the Cisco 3631 Power Supply, page 14

• Replacing the Router Cover, page 14

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Replacing the Cisco 3631 Power Supply

Removing the Router Cover

To gain access to the Cisco 3631 power supply, you must first remove the chassis cover:

Step 1 Turn off power to the router.

Step 2 Remove all network interface cables from the rear panel.

Step 3 If you have an AC-powered router, remove the power cord.

Step 4 The following warnings apply to routers with DC power supplies:

Warning

When installing the unit, always make the ground connection first and disconnect it last. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

If you have a DC-powered router, follow these steps to remove the power cables:

a. Use a screwdriver to loosen the captive installation screws on the terminal block cover.

b. Lift and remove the terminal block cover.

c. Use a screwdriver to remove the three power leads from the terminal block, in this order: negative,

positive, then ground.

Step 5 Place the router so the rear panel is closest to you. Remove the five screws located on top of the cover.

Set the screws aside in a safe place.

Step 6 Lift the front edge of the cover. (See number 1 in Figure 3.)

Step 7 Slide the cover toward the right until the metal tabs on the rear edge separate from the chassis bottom.

(See number 2 in Figure 3.)

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