Cisco 12016 Gigabit Switch Router Chassis Front Covers Replacement Instructions

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For Cisco IOS software configuration information and support, refer to the modular configuration and modular command reference publications in the Cisco IOS software configuration documentation set that corresponds to the Cisco IOS software release installed on your Cisco hardware. You can also refer to the Cisco IOS software release notes for the version of Cisco IOS software you are using on your router.
For hardware installation and maintenance information on the Cisco 12000 series routers, refer to the installation and configuration guide that shipped with your Cisco 12000 series router.
For information on regulatory compliance and safety, refer to the document Regulatory Compliance and Safety Information for the Cisco 12000 Series Gigabit Switch Routers.
To view Cisco documentation or obtain general information about documentation, refer to the following sources:
- Documentation CD-ROM.
- Cisco Connection Online (CCO). (Refer to the "Cisco Connection Online" section.)
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- The Cisco Information Packet that shipped with your router.

The Cisco 12016 GSR is equipped with front covers over the power shelf and upper blower module, the lower blower module, and each of the integral card cages in the chassis (see Figure 1). The front covers protect cables from being disconnected or damaged by accidental contact and present a consistent product appearance.

Figure 1: Cisco 12016 GSR Chassis Front Covers

Safety Guidelines

Before you begin the replacement procedure, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.

In addition, review the safety warnings listed in the document Regulatory Compliance and Safety Information for the Cisco 12000 Gigabit Switch Router Series (Document Number 78-4347-xx) that accompanied your Cisco 12016 GSR before installing, configuring, or maintaining the router.

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.

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.
Never assume that power is disconnected from a circuit; always check.
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 extension cables, and missing safety grounds.

Safety with Electricity

Follow these basic guidelines when working with any electrical equipment:

Before beginning any procedures requiring access to the interior of the router, locate the emergency power-off switch for the room in which you are working.
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.
Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
If an electrical accident does occur, proceed as follows:
- Use caution; do not become a victim yourself. Disconnect power to the router.
- 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.

In addition, observe the following guidelines 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

Many router components can be damaged by static electricity. Some components can be damaged by voltages as low as 30V, while static voltages as high as 35,000V can be generated just by handling plastic or foam packing material, or by sliding assemblies across plastic and carpets. Not exercising the proper electrostatic discharge (ESD) precautions can result in intermittent or complete component failures. To minimize the potential for ESD damage, observe the following guidelines:

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

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

When removing or installing a component, make sure the equipment end of your antistatic strap leash is connected to one of the ESD connection sockets on the front of the chassis or to a bare metal surface on the chassis. (See Figure 2.) Avoid contact between the component and your clothing. The ESD-preventive wrist strap only protects the component from ESD voltages on the body; ESD voltages on your clothing can still cause component damage.

Figure 2: Connecting an ESD-preventive Wrist Strap to the Cisco 12016 GSR Chassis

Always place a card component-side up on an antistatic surface, in an antistatic card rack, or in a static shielding bag. If you are returning the item to the factory, immediately place it in a static shielding bag.
When installing a line card or GRP, use the ejector levers to seat the card connectors in the backplane, then tighten both captive screws on the card's faceplate. These screws prevent accidental removal, provide proper grounding for the router, and help to ensure that the card connector is seated in the backplane.
When removing line cards, clock and scheduler cards, switch fabric cards, or a GRP, use the ejector levers to unseat the card connector from the backplane. Pull the metal card carrier out slowly, placing one hand along the bottom of the carrier to guide it straight out of the slot.
Handle line cards, clock and scheduler cards, switch fabric cards, or a GRP by the metal card carrier edges only; avoid touching the board or any connector pins.

Tools and Parts Required

You need the following tools and parts to remove and replace a chassis front cover:

ESD-preventive wrist strap
3/16-inch flat-blade screwdriver and Number 2 Phillips screwdriver
The replacement chassis front covers (Cisco product number ACS-GSR16-PLSTC=).

Removing and Replacing the Chassis Front Covers

The chassis front covers for the power shelf and upper blower module, upper card cage, lower card cage, and lower blower module are fastened to the chassis by ball studs that insert into sockets on the front of the chassis. These front covers are referred to as snap-on front covers.

The partial front cover on the air filter door is fastened to the air filter door by four screws inserted from the back side of the air filter door. You must open the air filter door to remove the partial front cover. This partial front cover is referred to as the air filter door front cover.

This section provides two procedures:

You can perform these procedures while the Cisco 12016 GSR remains powered up.

Removing and Replacing a Snap-On Chassis Front Cover

This section provides two procedures:

Removing a Snap-on Front Cover

To remove one of the snap-on front covers (for the power shelf and upper blower module, upper card cage, lower card cage, and lower blower module), follow these steps:

Step 1 Starting with the cover over the power shelf and upper blower module, observe the appearance and position of each of the four snap-on front covers on the Cisco 12016 GSR. (See Figure 1.)

Step 2 Identify the front cover to be removed.

Step 3 Grasp the outside edges of the front cover and pull it straight out to detach the front cover from the chassis. (See Figure 3.)

Figure 3: Removing a Snap-on Front Cover (Upper Blower Module Front Cover Shown)

Each of the snap-on front covers is equipped with a set of four ball studs that insert into sockets on the front of the chassis to secure the front cover.

Step 4 Set the front cover safely aside.

Repeat Step 3 and Step 4 for the remaining snap-on front covers, if required.

Installing a Snap-on Front Cover

To install a snap-on front cover, use Figure 1 as a reference and follow these steps:

Step 1 Hold the replacement front cover by its outside edges and align the ball studs with the sockets on the front of the chassis.

Step 2 Push the front cover into the ball stud sockets until all four ball studs snap into their sockets and the front cover is flush with the front of the chassis.

Repeat Step 1 and Step 2 for the remaining snap-on front covers, if required.

Removing and Replacing the Air Filter Door Front Cover

This section provides two procedures:

Removing the Air Filter Door Front Cover

To remove the air filter door front cover, follow these steps:

Step 1 Attach an ESD-preventive wrist strap to your wrist and connect the leash to one of the ESD connection sockets on the front of the chassis or to a bare metal surface on the chassis. (See Figure 2.)

Step 2 Open the air filter door. Use Figure 4 as a reference and follow the steps outlined below:

Figure 4: Opening the Air Filter Door

(a) Loosen the two captive screws on each side of the air filter door.

(b) Grasp the sides of the air filter door front cover and carefully swing the door out and down, away from the switch fabric card cage.

The air filter door is attached to the chassis by a pair of spring-loaded arms on either side of the door. When the door is fully extended away from the fabric card cage, it hangs down in front of the lower card cage.

Caution Be especially careful not to damage the honeycomb screen on the back of the air filter door and on the inside of the switch fabric card cage. Damaging the honeycomb screen can restrict the air flow and cause an overtemperature condition in the router. It can also diminish EMI protection.

Step 3 Using the Phillips screwdriver, loosen and remove the four screws that fasten the partial front cover to the air filter door. (See Figure 5.) Set the four screws safely aside; you will need them to install the replacement front cover.

Figure 5: Removing the Air Filter Door Front Cover

Step 4 Set the air filter door front cover safely aside.

Step 5 If you are not immediately replacing the air filter door front cover, close and fasten the air filter door to minimize the amount of dust drawn into the card cages:

(a) Grasp the sides of the air filter door and pivot it up so that it is aligned with the opening of the switch fabric card cage and the four guide pins are inserted in the corresponding holes on each side of the switch fabric card cage.

Caution All four sides of the air filter door are lined with EMI-preventive gaskets consisting of many raised, conductive contacts. Align and seat the door carefully to avoid damaging the EMI-preventive gasket contacts. A damaged gasket can result in reduced EMI performance.

(b) Push the air filter door until it is seated in the opening of the switch fabric card cage and tighten the four captive screws.

Installing the Replacement Air Filter Door Front Cover

To install the replacement front cover on the air filter door, follow these steps:

Step 2 If you have not already done so, open the air filter door on the front of the chassis (see Figure 4):

(a) Loosen the two captive screws on each side of the air filter door.

(b) Grasp the sides of the air filter door and carefully swing the door out and down, away from the switch fabric card cage.

Caution Be especially careful not to damage the honeycomb screen on the back of the air filter door and on the inside of the switch fabric card cage. Damaging the honeycomb screen can restrict the airflow and cause an overtemperature condition in the router. It can also diminish EMI protection.

Step 3 Hold the replacement front cover by its outside edges and align the screw holes in the front cover with the holes on the air filter door.

Step 4 Insert the four screws that you removed earlier and use the Phillips screwdriver to tighten the four screws. (See Figure 5.)

Caution To avoid damaging the screws or the threaded inserts in the front cover, do not overtighten the screws.

Step 5 Close the air filter door by grasping the sides of the air filter door front cover and pivoting the air filter door up so that it is aligned with the opening of the switch fabric card cage and the four guide pins are inserted in the corresponding holes on each side of the switch fabric card cage. (See Figure 6.)

Figure 6: Closing the Air Filter Door

Step 6 Push the air filter door until it is seated in the opening of the switch fabric card cage and tighten the four captive screws.

Caution The air filter door must be closed and secured at all times to maintain correct EMI performance.

FCC Class A Compliance Notice (United States)

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.

ICES-003 Class A Compliance Notice (Canada)

English Statement of Compliance

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

French Statement of Compliance

Cet appareil numerique de la classe A est conforme a la norme NMB-003 du Canada.

VCCI Class B Compliance Notice (Japan)

This is a class B product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual.

Cisco Connection Online

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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.

Table of Contents

Cisco 12016 Gigabit Switch Router Chassis Front Covers Replacement Instructions