This document contains instructions for removing and replacing a card cage assembly in the
Cisco 12012 Gigabit Switch Router (GSR).
The sections in this document include the following:
• Product Overview, page 1
• Safety Guidelines, page 3
• Tools and Parts Required, page 6
• Removing and Replacing a Card Cage Assembly, page 7
• FCC Class A Compliance, page 32
• Cisco Connection Online, page 33
Product Overview
The Cisco 12012 has two card cages; the upper card cage and the lower card cage. (Refer to
Figure 1.) 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 uppercard 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.
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The lower card cage, located behind the air filter,has fivekeyedhorizontal slots for cards containing
theswitchfabriccircuitry.Thecardsprovidethephysicalpathwayfordatapacketexchangebetween
the line cards in the upper card cage.
There are two types of cards installed in the lower card cage; the clock and scheduler card (CSC)
and the switch fabric card (SFC). Both types of cards are keyed to fit into specific slots in the lower
card cage. You can install the clock and scheduler card only in the top two slots and the switch fabric
card only in the lower three slots. The clock and scheduler card contains the system clock, switch
fabric scheduler circuitry, and the switch fabric. The switch fabric card contains only switch fabric
circuitry.
Below the lower card cage is a power supply bay.The Cisco 12012 can be configured for source AC
or source DC operation. A system configured for source AC operation must have a minimum of two
AC-input power supplies installed. You can install two additional AC-input power supplies for
redundancy and current sharing. Systems configured for source DC operation have one DC-input
power supply installed. Youcaninstall a second DC-input power supply for redundancy and current
sharing.
The Cisco 12012 has two blower modules; one located above the upper card cage and one located
belowthe powersupply bay.Theydrawfilteredcoolingairin through both card cages and the power
supply bay to maintain acceptable operating temperatures for the internal components.
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 SafetyInformation for the Cisco 12012 Gigabit Switch Router (Document Number 78-4347-xx) that
supports your Cisco 12012 before installing, configuring, or maintaining the router.
Following are translations for the warning statements used in this document.
Safety Warnings
Warning Thiswarning 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. Tosee 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.
Safety Guidelines
Varoitus Tämä varoitusmerkki merkitsee vaaraa.Olettilanteessa,jokavoijohtaaruumiinvammaan.
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 SafetyInformation -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 RegulatoryCompliance 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
Körperverletzungführen könnte. BevorSie 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
relativiaicircuitielettriciedesserealcorrentedellepratichestandardperlaprevenzionedi incidenti.
La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento RegulatoryCompliance 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
elektriskekretser 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 RegulatoryCompliance 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 assembly 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
The line cards, 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
— Determine if the person needs rescue breathing or external cardiac compressions; then take
• Disconnect all power and external cables before installing or removing a router.
Safety Guidelines
victim and then call for help.
appropriate action.
• 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.
Electrostatic discharge damage, which can occur when electronic boards or components are handled
improperly, can result in complete or intermittent 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 component, connect the equipment end of a ground strap to one
of the two ESD ground sockets located on the front sides of the upper card cage or to a bare metal
surface on the frame.
• Ifyouplan to return a replaced component to the factory,immediately place it in a static shielding
bag to avoid ESD damage to the component.
• The wrist strap only protects the component from ESD voltages on the body; ESD voltages on
clothing can still cause damage.
Caution You should 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 remove and replace the card cage assembly:
• ESD-preventive wrist strap
• 1/4-inch flat-blade screwdriver
• 3/16-inch flat-blade screwdriver
• 10-mm nutdriver
• Antistatic mat
• The replacement card cage assembly (Product Number: GSR12-CARDCAGE=)
You must remove all cards and power supplies from the old card cage assembly and install them in
the replacement card cage assembly.The replacement card cage ships with a new air filter installed.
This section covers removing and replacing of the card cage assembly. The card cage assembly
comprises a single assembly that includes the upper card cage, the lower card cage, and the power
supply bays. The assembly slides into and out of the frame and attaches to the frame with six captive
screws. An empty card cage assembly weighs 65 lb (29.5 kg).
The replacement card cage assembly is shipped with only a new air filter; you must remove the
following components from the old card cage assembly:
• Line cards
• route processor (RP)
• Clock and scheduler cards, and switch fabric cards
• Alarm card
• Any installed card blanks
• Power supplies and power supply blanks
Store them carefully while you install the new card cage assembly in the frame, then replace the
components in the new card cage assembly.
Removing and Replacing a Card Cage Assembly
Powering Down the Cisco 12012
Perform the following steps to power down the Cisco 12012:
Step 1Turn the DC-input power supply power switch to the OFF (O) position (on AC-input
power supplies, turn the power switch counterclockwise to the STANDBY position) on
all power supplies installed in the Cisco 12012.
Step 2Verify that the system has powered down by checking that the LEDs on the power
supplies are off and the green LEDs on both blower modules are off.
Warning This unit has more than one power supply connection; all connections must be removed
completely to completely remove power from the unit.
Removing a Power Supply
This section provides procedures for removing an AC-input power supply and a DC-input power
supply. Select the procedure appropriate for your system.
Caution Always wear an antistatic wrist strap to prevent ESD when removing and replacing a
Perform the following steps to remove an AC-input power supply:
Step 1Attach 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 2If you have not already done so, turn the power supply power switch to the STANDBY
position on the power supply you want to remove. (Refer to Figure 2a.)
Note Turning the power supply switch to STANDBY also releases a latch that secures
the power supply in the power supply bay slot.
Step 3Release the spring clip on the power supply faceplate. (Refer to Figure 2b.)
Step 4Disconnect the AC power cord from the power supply AC receptacle. (Refer to
Figure 2c.)
Step 5Disconnect the AC power cord from the source AC receptacle. (Refer to Figure 2d.)
Step 6Loosen the captive screw on the power supply faceplate. (Refer to Figure 2e.)
Step 7Grasp the power supply handle and pull straight out to disconnect the power supply from
the backplane connector. Slide the power supply halfway out of the bay slot. (Refer to
Figure 3.)
Figure 3Removing an AC-Input Power Supply
AC-input
power
INPUT:
200-240V
~
10 A
50/60 HZ
2000 W
supply
ACOK
OUTPUT
FAIL
H10376
Use two hands to slide power supply out of bay
Caution
supply.
The AC-input power supply weighs 18 lb (8 kg). Use two hands when handling the power
Step 8Place your free hand underneath the power supply for support and slide the power supply
Repeat Step 2 through Step 8 for the rest of the AC-input power supplies.
completely out of the bay slot. Set the power supply aside
Note If there are any power supply blanks installed, remove them by loosening the captive screw
on the power supply blank faceplate. Slide the power supply blank out of the power supply bay slot.
Set the power supply blank aside; you will replace the power supply blank in the replacement card
cage assembly.
Perform the following steps to remove a DC-input power supply:
Caution Before performing any of the followingprocedure, 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.
Step 1Attach 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 2If you have not already done so, turn OFF (O) the power switch on the DC-input power
supply.
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.
Note Turningthe powersupply switch to OFF (O) releases a latch that secures the power
supply in the power supply bay.
Step 3Locate and turn off the source DC circuit breaker that services the powersupply you want
to remove. As an added precaution, tape the circuit breaker handle in the off position.
Step 4Using a flat-blade screwdriver or a 10-mm nutdriver, turn the captive jackscrew
counterclockwise (eject) on the power supply faceplate to unseat the power supply from
the backplane power connector. Continue turning the jackscrew to disengage the
jackscrew from the power supply bay (approximately 12 revolutions).
Step 5Grasp the power supply handle and slide the power supply halfway out of the bay. (Refer