Cisco 12016 Gigabit Switch Router Blower Module Replacement Instructions

This publication explains how to remove and replace a blower module in the Cisco 12016 Gigabit Switch Router (GSR). This publication also includes instructions for verifying the operation of the system after you replace a blower module.

The following sections are included in this publication:

If You Need More Information

Your router and the Cisco IOS software running on it contain extensive features and functionality, which are documented in the following resources:

Cisco Documentation CD-ROM package

: Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
: If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

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.)
- Customer Service at 800 553-6387 or 408 526-7208. Customer Service hours are 5:00 a.m. to 6:00 p.m. Pacific time, Monday through Friday (excluding company holidays). You can also send e-mail to cs-rep@cisco.com.
- The Cisco Information Packet that shipped with your router.

Blower Module Overview

The Cisco 12016 GSR has two blower modules to distribute air within the chassis. One blower module is located above the upper card cage; the second is located below the lower card cage. (See Figure 1.) The two blower modules maintain acceptable operating temperatures for the internal components by drawing cooling air through a replaceable air filter into the switch fabric card cage, and then through the upper and lower card cages.

Figure 1: Blower Module Locations in the Cisco 12016 GSR

The upper and lower blower modules are identical, so they are interchangeable. The blower module is a sheet metal enclosure containing three blowers, a blower controller card, a handle, and two faceplate LEDs. (See Figure 2.) Both blower modules have snap-on plastic front covers mounted over the blower module faceplates. The two blower module LEDs are visible through the front covers. The handle on the blower module provides a grip when removing and replacing the blower module.

Figure 2: Blower Module (Shown without the Blower Module Front Cover)

The blower modules draw room air in through an air filter on the front of the switch fabric card cage (See Figure 3). The upper blower module draws the air into the switch fabric card cage, up through the upper card cage, and then forces it out through vents on the back of the blower module and chassis. The lower blower module draws the air into the switch fabric card cage, down through the lower card cage, and then forces it out through vents on the back of the blower module and chassis.

Caution The front and back of the Cisco 12016 GSR must remain unobstructed to ensure adequate air flow and prevent overheating inside the card cages. We recommend at least 6 inches (15.24 cm) of clearance.

Figure 3: Internal Air Flow (Side View)

A blower module controller card in the blower module monitors and controls the operation of the three variable-speed fans in the blower module. The variable-speed feature results in quieter operation by allowing the blower modules to operate at less than maximum speed when doing so provides adequate cooling to maintain an acceptable operating temperature inside the card cages.

Two temperature sensors on each line card monitor the internal air temperature in the card cages. When the ambient air temperature is within normal operating range, the fans operate at their lowest speed, which is 55 percent of the maximum speed. If the air temperature inside the card cages rises, fan speed increases to provide additional cooling air to the internal components. If the internal air temperatures continue to rise beyond the specified threshold, the system environmental monitor shuts down all internal power to prevent equipment damage from excessive heat.

If the system detects that one of the three fans within a blower module has failed, it displays a warning message on the console screen. In addition, the two remaining fans go to full speed to compensate for the loss of the one fan. If another fan fails, the system shut downs to prevent equipment damage.

The two LEDs (one green LED labeled OK and one red LED labeled FAIL) on each blower module are visible through the blower module front cover. These LEDs provide a visual indicator of blower module status. When on, the green LED indicates that all three fans are operating normally. The red LED should remain off during normal operation. If the red LED is on, the system has detected a fan failure or other fault in the blower module. The fault can be any of the following:

One or more stopped fans
One or more fans running below speed
Controller card fault

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

The blower modules support online insertion and removal (OIR), so you can remove and replace a blower module while the system remains powered up 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 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, 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

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 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 4.) 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 4: 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 blower module:

ESD-preventive wrist strap
3/16-inch flat-blade screwdriver
The replacement blower module (Cisco product number GSR16-BLOWER).

Removing and Replacing a Blower Module

This section provides three procedures:

Note The blower modules support online insertion and removal (OIR), so you can remove and replace a blower module while the system remains powered up without presenting an electrical hazard or damage to the system.

Caution With the Cisco 12016 GSR powered on and one of the blower modules removed, all of the cooling for that half of the system is lost. Remove and replace the defective blower module before the system overheats.

Caution Always wear an ESD-preventive wrist strap when removing and replacing a blower module.

Removing a Blower Module from the Chassis

The two blower modules in the Cisco 12016 GSR circulate cooling air through the three card cages in the chassis. The blower modules slide on rails into and out of the blower module bays in the top and bottom of the chassis. The blower modules are fastened to the chassis with two captive screws each.

Note The blower module installed in the upper blower module bay is installed in the "head-up" orientation, so that the three fan air intake openings face down. The blower module installed in the lower blower module bay is installed in the "head-down" orientation, so that the three fan air intake openings face up.

To remove a blower module, perform the following steps:

Step 1 Grasp the outside edges of the front cover over the blower module bay and pull it straight out to detach the four ball studs on the front cover from the ball stud sockets on the front of the blower module bay. (See Figure 5.)

Figure 5: Removing the Front Cover (Upper Blower Module Front Cover Shown)

Step 2 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 4.)

Step 3 Loosen the two captive screws on the blower module faceplate. (See Figure 6.)

Figure 6: Removing the Blower Module (Upper Blower Module Shown)

Caution The blower module weighs 20.5 lb (9.3 kg). Use two hands when handling a blower module.

Step 4 Grasp the blower module handle and pull it straight out to disconnect the blower module from the chassis backplane connector at the back of the blower module bay. Slide the blower module halfway out of the blower module bay.

Step 5 Use your free hand to support the blower module, and then slide the blower module completely out of the blower module bay.

Step 6 Set the blower module safely aside.

If you plan to return the defective blower module to the factory, repackage it in the shipping container you received with the replacement blower module.

Installing the Replacement Blower Module

Figure 7 shows how to install the replacement blower module in the chassis.

Figure 7: Installing the Replacement Blower Module

Caution The blower module weighs 20.5 lb (9.3 kg). Use two hands when handling a blower module.

To install a replacement blower module, use Figure 7 as a reference and 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 4.)

Step 2 Using two hands to support the blower module, position it in front of the blower module bay so that the blower module connector that is recessed into the back of the blower module is aligned with the connector mounted in the back corner of the blower module bay.

Note

Step 3 Slide the blower module on the rails into the blower module bay. Stop when the blower module makes contact with the chassis connector in the back of the blower module bay.

Caution To prevent damaging the chassis connector, do not use excessive force when inserting a blower module into its bay.

Step 4 Firmly push on the blower module handle to seat the blower module connector in the chassis connector. (When completely seated, the blower module faceplate flanges make contact with the front of the chassis.)

Note

Step 5 Tighten the two captive screws on the blower module faceplate.

Note

Step 6 Position the front cover of the blower module over the four ball stud sockets around the blower module bay and snap the front cover onto the faceplate.

Checking the Replacement of a Blower Module

To verify that the replacement blower module is operating, perform the following steps:

Step 1 Verify that the blower module is inserted all the way into the blower module bay in the chassis, that the two captive screws are tightened, and that the blower module front cover is securely installed on the front of the blower module.

Step 2 Check the blower module LEDs, which are visible through the blower module front cover.

The green LED labeled OK should come on as soon as the blower module is installed and receives power.

The red LED labeled FAIL should remain off, indicating that the three fans are operating normally.

If the red fail LED comes on, verify that the blower module is completely inserted into the chassis. Try reseating the blower module.

If the red fail LED comes on and the blower module is completely inserted in the chassis, the replacement blower module might be faulty, or the chassis connector might be damaged. Exchange the top and bottom blower modules to see if the problem is with the blower module or with the chassis connector.

If the blower module fails to operate properly, contact a Cisco service representative for assistance.

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

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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Cisco 12016 Gigabit Switch Router Blower Module Replacement Instructions