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Cisco Product Number: GSR16-CHASSIS=
This publication describes how to remove and replace the Cisco 12016 Gigabit Switch Router (GSR) chassis.
The following sections are included in this publication:
Your router and the Cisco IOS software running on it contain extensive features and functionality, which are documented in the following resources:
The Cisco 12016 GSR chassis is a sheet metal enclosure that consists of three integral card cages and two blower module bays. (See Figure 1.) Because the Cisco 12016 GSR can be configured with either an AC-input power subsystem or a DC-input power subsystem, the power shelf for the Cisco 12016 GSR is a separate unit that attaches to the top of the chassis.

The Cisco 12016 GSR has three integral card cages: the upper card cage, the lower card cage, and the switch fabric card cage. (See Figure 1.)
The upper card cage has eight user-configurable slots that support a combination of line cards and a Gigabit Route processor (GRP). The far left slot in the upper card cage is a dedicated slot for an alarm card. The far right slot (slot 7) in the upper card cage is reserved for the GRP. The remainder of the slots in the upper card cage (slots 0 through 6) can be populated with any of the line cards supported by the Cisco 12016 GSR.
The lower card cage also has eight user-configurable slots that support more line cards and an optional, redundant GRP. The lower card cage is an inverted, or head-down, copy of the upper card cage, meaning cards are installed the same way they are installed in the upper card cage, but in an inverted or head-down orientation. The far right slot in the lower card cage is dedicated to a second alarm card.
The switch fabric card cage has five slots for the cards that contain the switch fabric circuitry. These cards are the clock and scheduler cards (CSCs) and the switch fabric cards (SFCs). The card slots in the switch fabric card cage are keyed to accept specific card types. The two far left slots (labeled CSC0 and CSC1) accept clock and scheduler cards; the three far right slots (labeled SFC1, SFC2, and SFC3) accept switch fabric cards.
The two removable blower modules at the top and bottom of the chassis (see Figure 1) provide cooling air for all of the cards in the three card cages. In the power shelf, each power module contains a fan that draws cooler air into the front of the power module and forces warmed air out the back of the power shelf.
The Cisco 12016 GSR can be ordered with the AC-input power subsystem with three AC-input power supplies or the DC-input power subsystem with four DC-input power entry modules.
![]() | Caution The Cisco 12016 GSR must be operated with all of its power modules installed at all times for electromagnetic compatibility (EMC). |
The AC-input power subsystem consists of the AC-input power shelf with bays for three AC-input power supplies. A Cisco 12016 GSR ordered with the AC-input power subsystem ships with three AC-input power supplies (full redundant power) installed in the AC-input power shelf. In the full redundant power configuration, the three power supplies participate in an N+1 redundant current-sharing scheme in which current sharing is divided among all three power supplies. If one power supply fails, the system can continue to operate temporarily on the two remaining power supplies.
The DC-input power subsystem consists of the DC-input power shelf with bays for four DC-input power entry modules. A Cisco 12016 GSR ordered with the DC-input power subsystem ships with four DC-input power entry modules (full redundant power) installed in the DC-input power shelf. In the full redundant power configuration, modules A1 and B1 provide redundant power for system load zone 1 (the upper blower module and the upper card cage). Modules A2 and B2 provide redundant power for system load zone 2 (the switch fabric card cage, the lower card cage, and the lower blower module).
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 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.
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.
Follow these basic guidelines when working with any electrical equipment:
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:
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:
![]() | Caution You should periodically check the resistance value of the ESD-preventive strap. The measurement should be between 1 and 10 megohms. |

You need the following tools and parts to remove and replace the chassis:
The Cisco 12016 GSR chassis is an integrated, sheet metal assembly that includes the upper blower module bay, the upper card cage, the switch fabric card cage and air filter door, the lower card cage, and the lower blower module bay. The chassis is mounted in an equipment rack by ten screws (five on each side) that fasten the chassis rack-mounting flanges to the mounting flanges on the rack.
This section provides the following procedures:
You must power down the Cisco 12016 GSR to remove the replace the chassis.
This section provides the following procedures:
To power down the Cisco 12016 GSR, follow these steps:
Step 1 Turn off all circuit breakers for source power lines connected to the power shelf.
Step 2 Verify that the LED labeled PWR OK on each of the power modules is off, and that the power fan in each module is off.
Step 3 Verify that green LED labeled OK on each blower module is off.
The four 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 Phillips screws inserted from the back side of the air filter door. You must open the air filter door to remove this front cover. This partial front cover is referred to as the air filter door front cover.
This section provides two procedures:
To remove 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, note the appearance and position of each of the four snap-on front covers on the Cisco 12016 GSR.
Step 2 Grasp the outside edges of the front cover and pull it straight out to detach the front cover from the chassis.
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 3 Set the front cover safely aside.
Repeat Step 2 and Step 3 for the remaining snap-on front covers.
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 Loosen the two captive screws on each side of the air filter door. (See Figure 3.)

Step 3 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 4 Using the Phillips screwdriver, loosen and remove the four screws that fasten the partial front cover to the air filter door. (See Figure 4.) Set the four screws safely aside; you will need them to install the replacement front cover.

Step 5 Set the air filter door front cover safely aside.
Step 6 Close and fasten the air filter door:
(a) Grasp the sides of the air filter door front cover and pivot 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.
![]() | 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.
![]() | Caution The air filter door must be closed and secured at all times to maintain correct EMI performance. |
You must disconnect any cables that are connected to the GRP console port, auxiliary port, or either of the Ethernet ports, RJ-45 or MII. Identify each of the GRP cable connections and write them down on a piece of paper before you disconnect the cables. After disconnecting the cables, remove them from the chassis and place them safely aside.
You must disconnect any cable that is connected to the external alarm port on either or both of the alarm cards. Identify the alarm cable connections and write them down on a piece of paper before you disconnect the cables. After disconnecting the cables, remove them from the chassis and place them safely aside.
Figure 5 shows the steps in removing a blower module from the chassis.

To remove a blower module, use Figure 5 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 2.)
Step 2 Loosen the two captive screws on the blower module faceplate. (See Figure 5.)
![]() | Caution The blower module weighs 20.5 lb (9.3 kg). Use two hands when handling a blower module. |
Step 3 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 4 Use your free hand to support the blower module as you slide the blower module completely out of the blower module bay.
Step 5 Set the blower module safely aside.
Repeat Step 2 through Step 5 for the lower blower module.
This section contains two procedures:
Select the appropriate procedure for your router.
Figure 6 shows the steps in removing an AC-input power supply from the power shelf.

To remove an AC-input power module, use Figure 6 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 2.)
Step 2 To turn off the power supply and eject it from the shelf backplane connector, follow these steps:
(a) Lift the ejector lever spring clip to release the ejector lever from the power supply faceplate. (See Figure 6a.)
(b) Pivot the ejector lever away from the power supply faceplate to eject the power supply from the power shelf backplane connector. (See Figure 6b.)
Step 3 Grasp the power supply handle and pull the power supply halfway out of the bay. (See Figure 6c.)
![]() | Caution The AC-input power supply weighs 12.7 lb (5.7 kg). Because of the weight of the power supply and the elevated position of the power shelf, you should use two hands when handling the power supply. |
Step 4 Use your free hand to support the power supply while you slide the power supply completely out of the bay. (See Figure 6c.)
Step 5 Set the power supply safely aside.
Repeat Step 2 through Step 5 for the remaining power supplies.
Figure 7 shows the steps in removing a DC-input power entry module from the power shelf.

To remove a DC-input power entry 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 2.)
Step 2 To turn off the power entry module and eject it from the power shelf backplane connector, follow these steps:
(a) Loosen the ejector lever captive screw to release the ejector lever from the power entry module faceplate. (See Figure 7a.)
(b) Pivot the ejector lever away from the power entry module faceplate to eject the power entry module from the power shelf backplane connector. (See Figure 7b.)
Step 3 Grasp the power entry module handle and pull the power entry module halfway out of the bay. (See Figure 7c.)
![]() | Caution The DC-input power entry module weighs 6.4 lb (2.9 kg). Because of the weight of the power entry module and the elevated position of the power shelf, you should use two hands when handling the power entry module. |
Step 4 Use your free hand to support the power entry module as you slide it completely out of the bay. (See Figure 7d.)
Step 5 Set the power entry module safely aside.
Repeat Step 2 through Step 5 for the remaining power entry modules.
This section provides two procedures:
Choose the procedure that fits your system.
The back panel of the AC-input power shelf has three AC power cord receptacles (one for each power supply bay.). Figure 8 shows how to disconnect power from the AC-input power shelf.

To disconnect power from the AC-input power shelf, use Figure 8 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 2.)
Step 2 Disconnect the AC power cords from their source AC outlets.
Step 3 Starting with the far right power cord coupler (when viewing the back panel of the power shelf), pull back the retention clip holding the AC power cord coupler in the AC power cord receptacle on the back panel of the power shelf.
Step 4 Pull the AC power cord coupler from the AC power cord receptacle on the back panel of the power shelf.
Repeat Step 3 and Step 4 for each of the remaining source AC power cords.
Step 5 Loosen the captive screws (one on each side) that fasten the back panel of the power shelf to the power interface panel on the back of the chassis.
To disconnect power from the DC-input power shelf, 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.)
![]() | Warning Before connecting or disconnecting ground or power wires to the chassis, 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 2 Loosen the screw that secures the source DC power cable cover to the back panel of the power shelf. Slide the cover down to free the screw head from the keyhole slot in the cover. Pull the cover away from the power shelf back panel. (See Figure 9.) Set the cover safely aside.

Step 3 Measure the voltages across the leads attached to each of the cable pairs on the back panel of the power shelf. All readings should be zero volts.
Step 4 Disconnect the DC power negative (-) and positive (+) cable pairs from the DC-input terminal studs on the back panel of the power shelf. Use Figure 10 as a reference and follow the steps outlined below:

(a) Remove only the outer nut and washer from both terminal studs to which the negative (-) cable lug is connected.
(b) Pull the source DC negative (-) cable lug from the terminals and put it safely aside.
![]() | Caution As an added precaution, we strongly recommend that you place electrical tape or insulated shrink tubing over the exposed cable lugs to prevent accidental contact between the lugs, or between the lugs and ground. |
(c) Remove only the outer nut and washer from both terminal studs to which the positive (+) cable lug is connected.
(d) Pull the source DC power positive (+) cable lug away from the terminals and put it safely aside.
(e) Reinstall the washers and outer nuts on the terminal studs.
Repeat Step 4 for each of the source DC power cable pairs (- and +) on the remaining sets of terminal studs for power entry module bays A1, A2, and B2.
Step 5 Remove the outer nut and washer from the two ground terminal studs and remove the power shelf earth ground cable lug from the terminal studs.
Step 6 Reinstall all the washers and nuts on the terminal studs.
Step 7 Put the source DC power cable cover back in place on the standoff and tighten the screw.
To remove the power shelf from the chassis, 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 Loosen the captive screws (two on each side) that fasten the two power shelf front flanges to the rack-mounting flanges on the chassis. (See Figure 11.)

Step 3 Grasp the flanges on the power shelf and pull the power shelf straight out approximately three inches to disconnect the power shelf from the connectors on the chassis power interface panel. Slide the power shelf halfway out of the rack. (See Figure 12.)

![]() | Caution An empty AC-input power shelf weighs 20.9 lb (9.5 kg) and an empty DC-input power shelf weighs 10.2 lb (4.6 kg). Because of the rack-mounted height of the Cisco 12016 GSR chassis, you should be especially careful while lifting and removing the power shelf. To prevent injury, keep your back straight and lift with your legs, not your back. Avoid sudden twists or lateral moves. |
Step 4 Grasping the power shelf flanges with both hands (see Figure 12), slowly lift the power shelf off the chassis and pull it out of the rack.
Step 5 Set the power shelf safely aside.
Proceed to the "Removing the Cards from the Upper Card Cage" section.
The upper card cage has eight slots (numbered 0 through 7, from left to right). Line cards are installed in slots 0 through 6. The master GRP must be installed in slot 7. The upper card cage also has a dedicated, non-configurable slot (far left slot, labeled Alarm card) for an alarm card.
To remove a card from the upper card cage, 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 Proceeding from left to right, identify each card and write down the following information on a piece of paper:
When you reinstall the cards in the replacement chassis, install them in the same card slots that they occupied in the original chassis.
Step 3 Disconnect any cable connectors from the card ports.
Step 4 If the card is a line card, loosen the captive screw at each end of the line card cable-management bracket and pull the cable-management bracket and cables away from the line card faceplate. (See Figure 13.)

Step 5 Loosen the captive screw at each end of the card faceplate. (See Figure 14a.)

Step 6 Place your thumbs on the ejector levers and simultaneously pivot the ejector levers away from each other to eject the card from the backplane connector. (See Figure 14b.)
Step 7 Grasp both ejector levers and pull the card straight out of the slot approximately half way. Avoid touching the card or any connector pins.
![]() | Caution One edge of the card carrier faceplate is lined with an EMI-preventive gasket consisting of many raised, conductive contacts. Be careful not to damage the gasket contacts, because a damaged card carrier gasket can result in reduced EMI performance. |
Step 8 Grasp the edge of the card carrier with one hand and place your other hand under the carrier to support it. (See Figure 14c.) Slide the card out of the slot and place it immediately in an antistatic sack to protect it against ESD and dust (in the case of fiber-optic line cards).
Repeat Step 2 through Step 8 for the remaining cards in the upper card cage.
![]() | Caution Any unoccupied card slot in the upper or lower card cages must have a blank filler panel installed for electromagnetic compatibility (EMC) and to ensure proper air flow through the chassis. When the faceplate of a line card does not completely fill the card slot opening, a narrow card filler panel must be installed for electromagnetic compatibility (EMC) and to ensure proper air flow through the chassis. |
Step 9 Remove all blank filler panels and narrow card filler panels. You must install them in the same slots in the new chassis.
Except for the head-down orientation in the lower card cage (see Figure 15), a card in the lower card cage is removed in exactly the same way as described in the "Removing the Cards from the Upper Card Cage" section.

To remove a card from the switch fabric card cage, 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 on the front of the chassis. Use Figure 16 as a reference and follow these steps:
(a) Loosen the two captive screw 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 Starting with the far left card, grasp the two card ejector levers and simultaneously pivot both ejector levers 90 degrees away from the front edge of the card carrier to unseat the card from the backplane connector. (See Figure 17.)
Step 4 Touching only the metal card carrier, slide the card out of the slot and place it directly into an antistatic sack or other ESD-preventive container.
Repeat Step 3 and Step 4 for the remaining cards in the switch fabric card cage.
Step 5 Close and fasten the air filter door:
(a) Grasp the sides of the air filter door front cover and pivot 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.
![]() | 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.
![]() | Caution The air filter door must be closed and secured at all times to maintain correct EMI performance. |
One vertical cable-management trough is attached to each side of the chassis by six Phillips screws. (See Figure 18.) Both vertical cable-management troughs must be removed from the chassis before the chassis can be removed from the equipment rack.

To remove the vertical cable-management troughs, use Figure 18 as a reference and follow these steps:
Step 1 Insert a Phillips screwdriver through the access holes in the outer surface of the trough and remove the six Phillips screws that secure the trough to the chassis.
Step 2 Set the trough and the screws safely aside. You will need to reinstall the trough on the replacement chassis after it has been installed in the equipment rack.
Repeat Step 1 and Step 2 for the remaining trough.
If your router has supplemental bonding and grounding cables attached to any of the earth ground cable receptacles on the chassis, you must detach these cable lugs from the chassis before you can remove the chassis from the equipment rack. Two receptacles are located on the front flanges of the chassis, near the lower corners of the switch fabric card cage (see Figure 19) and two receptacles are located on top of the power interface panel on the back of the chassis (see Figure 20).


To detach a supplemental bonding and grounding cable lug from the chassis, use Figure 19 or Figure 20 as a reference and follow these steps:
Step 1 Remove the two bolts, washers, and nuts that secure the bonding and grounding cable lug to the chassis. Save the mounting hardware, because you will use it in a later procedure.
Step 2 Remove the bonding and grounding cable and set it aside.
Repeat Step 1 and Step 2 for a second supplemental bonding and grounding connector (if present).
To remove the chassis from the equipment rack, follow these steps:
Step 1 Position the scissor-jack platform from the original GSR shipping package in front of the rack-mounting platform in the rack.
Step 2 Use the 3/4-in (19-mm) socket and ratchet wrench to turn the scissor-jack screw counterclockwise to expand the scissor-jack platform and slowly raise the top of the scissor-jack platform to the same height as the top of the rack-mounting platform. (See Figure 21.)

Step 3 Working from the top of the chassis down, remove the screws that secure the chassis to the mounting flanges on the rack (five screws on each side of the chassis). Set the screws aside for use in installing the replacement chassis.
![]() | Caution The chassis is still supported by the rack-mounting platform installed in the bottom of the rack, but should be held to prevent the possibility of tipping out of the front of the rack. |
Step 4 Position one person in front of the chassis to support and guide it while the second person slowly pushes the chassis to slide it off the rack-mounting table, out of the rack, and onto the scissor-jack platform.
Step 5 With one person positioned on the side of the chassis to prevent it from tipping, install the four chassis anchor clips through the slots in the bottom of the chassis, align the holes with the bolt holes in the platform, and insert and tighten the four bolts to prevent the chassis from shifting on the scissor-jack platform. (See Figure 22.)

Step 6 With one person positioned on the side of the chassis to prevent it from tipping, use the 3/4-inch (19-mm) socket and ratchet wrench to turn the scissor-jack screw clockwise slowly and close the scissor-jack platform to lower the chassis. (See Figure 23.)

Step 7 Position the safety hand truck at one side of the chassis, slide the chassis and scissor-jack platform onto the safety hand truck, and secure the chassis to the hand truck with the locking safety strap.
Step 8 Tilt the safety hand truck onto its outrigger wheels to move the chassis to a level, open space with a solid floor, where the chassis can be repackaged for shipping.
If you plan to return the old chassis to the factory, repackage it in the original shipping container, or a replacement shipping container acquired from Cisco. For information on repackaging the chassis, refer to the "Reinstalling the Chassis and Scissor-Jack Platform in the Shipping Pallet" section and the "Repackaging the Chassis for Shipment" section.
This section provides the following procedures:
Figure 24 shows the replacement chassis secured to the scissor-jack platform and installed on the shipping pallet. The chassis is secured to the scissor-jack platform by four anchor clips bolted to the top of the scissor-jack platform. The scissor-jack platform is secured to the shipping pallet by eight hold-down brackets. Figure 25 shows how the chassis and scissor-jack platform are separated from the shipping pallet.


To remove the chassis from the shipping pallet and move it to the rack, follow these steps:
Step 1 Remove the two hold-down brackets attached the front of the scissor-jack platform. Use Figure 24 as a reference and follow these steps:
(a) Use the 9/16-in (14-mm) wrench to remove the bolts that fasten the two front hold-down brackets to the top of the shipping pallet. (See Figure 26.)

![]() | Caution The blocking plate is a safety feature to prevent you from removing the lateral bolts from the sides of the scissor-jack platform. Do not do anything to defeat the intent of the blocking plate. |
(b) Remove the blocking plates from the two hold down brackets.
(c) Use the 9/16-in (14-mm) wrench to remove the bolts that fasten the two hold-down brackets to the front side of the scissor-jack platform. (See Figure 27.)

(d) Set the hold-down brackets, blocking plates, and bolts safely aside.
Step 2 Remove the pallet front bar from the U-shaped pallet body. Use Figure 28 as a reference and follow the steps outlined below.

(a) Pivot the butterfly handle on the hinge lock so that it is perpendicular to the body of the hinge lock.
(b) Twist the butterfly handle counterclockwise to release the hinge lock hook from the hinge lock catch on the pallet body.
(c) Lift the hinge lock hook off the catch to free the pallet front bar.
(d) Pull the pallet front bar away from the pallet body and set it safely aside.
Step 3 Use the 3/4-in (19-mm) socket and ratchet wrench to turn the scissor-jack screw counterclockwise to expand the scissor-jack platform and lower the base of the scissor-jack platform to the floor. Continue turning the screw until the platform supports the weight of the chassis and barely begins to lift the pallet. (See Figure 29.)

Step 4 Use the 9/16-in (14-mm) wrench to remove the bolts that fasten the remaining six hold-down brackets to the top of the pallet body.
![]() | Caution At this point, the weight of the chassis is supported by the scissor-jack platform. Have one person hold the chassis to ensure that it is stable. |
Step 5 Slide the pallet body away from the base of the scissor-jack platform and set it safely aside. (See Figure 25.)
![]() | Warning Do not attempt to lift the chassis with the handles on the back and sides of the Cisco 12016 GSR chassis. These handles are not designed to support the weight of the chassis, and should be used only to steady and guide the chassis while it is being inserted into or removed from an equipment rack. To reduce the risk of damage to the chassis and serious bodily injury, do not use these handles to lift or support the chassis. |
Step 6 Use the 9/16-in (14-mm) wrench to remove the lateral bolts that fasten the remaining six hold-down brackets to the sides of the scissor-jack platform.
Step 7 Use the 3/4-in (19-mm) socket and ratchet wrench to turn the scissor-jack screw clockwise to close the scissor-jack platform and lower the GSR. (See Figure 30.)

Step 8 Position the safety hand truck at one side of the chassis, slide the chassis and scissor-jack platform onto the safety hand truck, and secure the chassis to the hand truck with the locking safety strap. (See Figure 31.)
![]() | Caution The safety strap should be snug, but not so tight as to damage the chassis or its components. Do not overtighten the safety strap. |

Step 9 Tilt the safety hand truck onto its outrigger wheels to move the chassis to the rack site. (See Figure 32.)

Step 10 At the rack site, tilt the chassis upright so that it stands on the scissor-jack platform, then remove the hand truck.
Step 11 Position the chassis and scissor-jack platform in front of the rack with the back panel of the chassis facing the rack opening, and the back of the scissor-jack platform butted against the rack-mounting platform in the rack. (See Figure 33.)

When the chassis and scissor-jack platform have been positioned in front of the rack with the back of the chassis facing the opening between the rack posts, you must expand the scissor-jack platform to raise the chassis to the same height as the rack-mounting platform installed in the rack.
To insert the chassis into the rack, follow these steps:
Step 1 With one person positioned on the side of the chassis to prevent it from tipping, use the 3/4-in (19-mm) socket, ratchet wrench, and extender bar to turn the scissor-jack screw counterclockwise to expand the scissor-jack platform and slowly raise the chassis to the required installation insertion height. (See Figure 34.)

Step 2 Remove the four bolts and anchor clips that secure the base of the chassis to the scissor-jack platform. (See Figure 35.)

![]() | Warning Do not attempt to lift the chassis with the handles on the back and sides of the Cisco 12016 GSR chassis. These handles are not designed to support the weight of the chassis, and should be used only to steady and guide the chassis while it is being inserted into or removed from an equipment rack. To reduce the risk of damage to the chassis and serious bodily injury, do not use these handles to lift or support the chassis. |
Step 3 Slide the chassis carefully off of the scissor-jack platform and onto the rack-mounting platform in the rack by having one person use the handle on the back of the chassis to pull the chassis into the rack while a second person pushes from the front of the chassis. (See Figure 36.)

Step 4 Push the chassis into the rack until the chassis rack-mounting flanges are flush against the mounting flanges on the rack (or against the optional center-mount brackets, if installed).
Step 5 Close the scissor-jack platform and put it with the rest of the shipping container.
Step 6 Look at the bottom group of mounting holes (group A) on the chassis. (See Figure 37.) Identify one of the holes in group A that aligns with a mounting hole on the mounting flanges of the rack.

Step 7 Hold the chassis in position against the mounting flanges on the rack and have a second person insert and loosely tighten one of the mounting screws provided.
Step 8 On the other side of the chassis, adjust the position of the chassis so that the same mounting hole in the bottom group of mounting holes (group A) is aligned with a hole in the mounting flange on the rack, then insert and loosely tighten one of the mounting screws provided.
Repeat Step 6 through Step 8 for mounting hole groups B through E.
Step 9 Level the chassis as required, and then secure the chassis to the equipment rack by tightening all ten screws (five on each side of the chassis).
Figure 38 shows how to attach a supplemental bonding and grounding cable lug to one of the receptacles on either side of the switch fabric card cage on the front of the chassis. Figure 39 shows how to attach a supplemental bonding and grounding cable lug to one of the receptacles on either side of the top of the power interface panel on the back of the chassis.


To attach a bonding and grounding cable lug to a bonding and grounding receptacle on the router, use Figure 38 or Figure 39 as a reference and follow these steps:
Step 1 Locate the Cisco 12016 GSR bonding and grounding receptacle you plan to use.
Step 2 Position the bonding and grounding cable lug over the bonding and grounding receptacle holes on the chassis.
Step 3 Insert the two M6 bolts that you removed earlier through the holes in the cable lug and chassis, then install the locking washers and nuts.
Step 4 Ensure that the bonding and grounding cable does not interfere with other router hardware, then tighten the nuts and bolts to secure the bonding and grounding cable lug to the chassis.
Repeat Step 2 through Step 4 for the second bonding and grounding connection, if required.
To reattach the vertical cable-management troughs, use Figure 18 as a reference and follow these steps:
Step 1 Align the trough so that the access gate opens toward the front of the chassis.
Step 2 Align the screw holes on the inside panel of the trough with the standoffs in the chassis rack-mounting flange near the upper horizontal cable-management tray.
Step 3 Use your fingers to insert screws into the two holes and screw them in to hold the tough in place.
Step 4 Insert a Phillips screwdriver through the access holes in the outer panel of the trough and loosely tighten the two screws.
Step 5 Insert and start screws in the middle two standoffs and the bottom two standoffs.
Step 6 Check the alignment of the trough on all six holes, then use the Phillips screwdriver to tighten all six screws.
Repeat Step 1 through Step 6 for the remaining trough.
You should reinstall the power shelf and reconnect the ground connection and power source connections to ensure that the chassis is grounded before reinstalling cards and other ESD-sensitive components in the chassis.
To reinstall the power shelf on the replacement chassis, 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.)
![]() | Caution An empty AC-input power shelf weighs 20.9 lb (9.5 kg) and an empty DC-input power shelf weighs 10.2 lb (4.6 kg). Because of the rack-mounted height of the Cisco 12016 GSR chassis, you should be especially careful while lifting and removing the power shelf. To prevent injury, keep your back straight and lift with your legs, not your back. Avoid sudden twists or lateral moves. |
Step 2 Grasp the power shelf front flanges with both hands, lift the power shelf to the top of the chassis, and set the bottom edges of the power shelf sides into the tracks on the edges of the top of the chassis. (See Figure 40.)

Step 3 Slide the power shelf halfway onto the top of the chassis.
Step 4 Seat the power shelf in the chassis power interface panel connectors. Use Figure 41 as a reference and follow the steps outlined below:

(a) Verify that the two guide pins on the chassis power interface panel are correctly aligned with the two holes on the back of the power shelf.
(b) Carefully push the power shelf until the two connectors on the back of the power shelf contact the two connectors on the chassis power interface panel.
(c) Firmly push the power shelf until the connectors are completely seated and the front flanges on the power shelf make contact with the rack-mounting flanges on the chassis.
Step 5 Insert and tighten the captive screws (two on each side) on each power shelf front flange to secure the power shelf to the rack-mounting flanges on the chassis. (See Figure 42.)

This section contains two procedures:
Choose the procedure that fits your router.
Figure 43 shows how to connect AC power cords to the AC input power cord receptacles on the back of the AC-input power shelf after it has been installed on top of the Cisco 12016 GSR chassis.

To reconnect source AC to the power shelf, use Figure 43 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 2.)
Step 2 Beginning with the rightmost AC receptacle on the back of the power shelf, pull back the retention clip and plug the AC power cord coupler for that receptacle into the AC receptacle.
Step 3 Release the retention clip over the power cord coupler to secure the power cord coupler in the AC receptacle.
Repeat Step 2 and Step 3 for the remaining AC power cords.
Figure 44 shows how to reconnect source DC power cables to the DC-input terminal studs on the back panel of the DC-input power shelf after it has been reinstalled on top of the Cisco 12016 GSR chassis.

To reconnect source DC to the power shelf, use Figure 44 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 2.)
Step 2 Loosen the screw that secures the source DC power cable cover to the back panel of the power shelf. Slide the cover down to free the screw head from the keyhole slot in the cover. Pull the cover away from the power shelf back panel. (See Figure 44.) Set the cover aside.
Step 3 Remove only the outer nut and washer from each of the terminal studs on the back panel of the power shelf.
![]() | Warning When installing the source DC power cable leads, always make the ground connection first and disconnect the ground connection last. |
Step 4 To reattach the power shelf ground cable, use Figure 44 as a reference and follow these steps:
(a) Position the power shelf ground cable lug on the ground terminal studs.
(a) Install washers and nuts on both terminals and tighten the nuts with your fingers.
(a) Verify that the ground cable lug is on straight and does not interfere with other cables, then use a 10-mm wrench or nutdriver to tighten the nuts.
Step 5 To reinstall the source DC power module cable leads, use Figure 44 as a reference and follow these steps:
(a) For each power entry module cable lead pair, identify the source DC return (positive) and source DC (negative) cable leads.
(b) Select the source DC return (positive) cable lead and fit the holes in the cable lug over the source DC return (positive) terminal studs on the power shelf.
(c) Reinstall the locking washers and nuts and tighten them to secure the cable lug.
(d) Select the source DC (negative) cable lead and fit the holes in the cable lug over the source DC (negative) terminal studs on the power shelf.
(e) Reinstall the locking washers and nuts and tighten them to secure the cable lug.
Repeat Step 5a through Step 5e for the source DC cable lead pairs for the remaining power entry module bays.
Step 6 Verify that all the terminal stud connections on the power shelf are tight.
Step 7 Switch on the circuit breakers for the four power module circuits and verify that the polarity of the source DC wiring from the source DC breaker to the power shelf is correct.
Step 8 Switch off the circuit breakers for the four power module circuits.
Step 9 Position the power shelf terminal stud cover so that the cable openings are over the cables and the standoff keyhole is over the standoff screw on the power shelf. Slide the cover upward slightly to engage the screw head in the keyhole slot and then secure the cover by tightening the screw.
Install the clock and scheduler cards in the two far left slots of the switch fabric card cage. Install the switch fabric cards in the three far right slots.
To reinstall a card in the switch fabric card cage, 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 To gain access to the switch fabric card cage, loosen the four captive screws on the air filter door and swing the door down, away from the switch fabric card cage opening.
![]() | 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 Starting with the far left card slot, retrieve the CSC that belongs in that slot.
Step 4 Grasp the card carrier handle with one hand and place your other hand under the carrier to support and guide it into the correct slot. Slide the card halfway into the slot. Avoid touching the card circuitry or any connectors.
Step 5 Pivot both card ejector levers so they are perpendicular to the front edge of the card carrier.
Step 6 Continue sliding the card into the card cage slot until the openings on the card ejector cams engage the tabs on each side of the card cage slot.
Step 7 To seat the card in the backplane connector, grasp both card ejector levers and pivot them inward toward the middle of the card carrier until they are flush against the front edge of the card carrier.
Repeat Step 3 through Step 7 for the remaining cards to be reinstalled in the switch fabric card cage.
Step 8 Close and fasten the air filter door:
(a) Grasp the sides of the air filter door and carefully pivot 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.
![]() | 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 firmly on the air filter door until it is seated in the opening of the switch fabric card cage, then tighten the four captive screws.
![]() | Caution The air filter door must be closed and secured at all times to maintain correct EMI performance. |
Before you begin reinstalling cards in the upper card cage, identify slot assignments by referring to the list you prepared when you removed the cards.
To reinstall a card in the upper card cage, 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 Remove a card from its antistatic sack or ESD-preventive container.
Step 3 Starting from the right side of upper card cage, refer to your list of card slots to determine the assigned slot for the card.
Step 4 Grasp the front edge of the metal card carrier with one hand and place your other hand under the carrier to support and guide it into the card cage slot.
![]() | Caution One edge of the card carrier faceplate is lined with an EMI-preventive gasket consisting of many raised, conductive contacts. Be careful not to damage the gasket contacts, because a damaged card carrier gasket can result in reduced EMI performance. |
Step 5 Carefully slide the card carrier into the slot until the ejector levers make contact with the front of the card cage, then stop.
Step 6 Grasp the two card ejector levers and pivot them toward each other until they are perpendicular to the card faceplate to seat the card in the backplane connector.
Step 7 Tighten the captive screws at the top and bottom of the card faceplate.
Repeat Step 2 through Step 7 for the rest of the cards in the upper card cage.
![]() | Caution Any unoccupied card slot in the upper or lower card cages must have a blank filler panel installed for electromagnetic compatibility (EMC) and to ensure proper air flow through the chassis. When the faceplate of a line card does not completely fill the card slot opening, a narrow card filler panel must be installed for electromagnetic compatibility (EMC) and to ensure proper air flow through the chassis. |
Before you begin reinstalling cards in the lower card cage, identify slot assignments by referring to the list you prepared when you removed the cards.
Except for the head-down orientation of the cards, cards are reinstalled in the lower card cage in exactly the same way as described in the "Reinstalling the Cards in the Upper Card Cage" section.
This section contains two procedures:
Figure 45 shows how to reconnect network interface cables to a line card in the upper card cage.

To reconnect network interface cables to a line card in the upper card cage, use Figure 45 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 2.)
Step 2 Check your notes on the slot assignment and network interface cable information that you wrote down before removing the line card.
Step 3 Orient the line card cable-management bracket so that the top of the bracket (the end where the cables exit to the chassis cable-management tray) is near the top of the line card faceplate.
Step 4 Align the two captive screws in the bracket with the threaded inserts near the ejector levers on the ends of the line card faceplate.
Step 5 Insert and tighten the two captive screws with your fingers, and then use a 3/16-inch flat-blade screwdriver to tighten the two captive screws.
![]() | Caution Do not overtighten the captive screws; you might strip the threads on the screw or faceplate insert. |
Step 6 Proceeding from the bottom port to the top port (on line cards with multiple ports only), identify the network interface cable for the line card port and insert the cable connector into the line card port.
Repeat Step 6 for the remainder of the interface cables for this line card.
Figure 46 shows how to reconnect network interface cables to a line card in the lower card cage.

To reconnect network interface cables to a line card in the lower card cage, use Figure 46 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 2.)
Step 2 Check your notes on the slot assignment and network interface cable information that you wrote down before removing the line card.
Step 3 Orient the line card cable-management bracket so that the end of the bracket where the cables exit to the chassis cable-management tray points to the lower chassis cable-management tray.
Step 4 Align the two captive screws in the bracket with the threaded inserts near the ejector levers on the ends of the line card faceplate.
Step 5 Insert and finger-tighten the two captive screws, and then use a 3/16-inch flat-blade screwdriver to tighten the two captive screws.
![]() | Caution Do not overtighten the captive screws; you might strip the threads on the screw or faceplate insert. |
Step 6 Proceeding from the line card port closest to the alphanumeric LED displays to the port farthest from the alphanumeric LED displays (on line cards with multiple ports only), identify the network interface cable for the line card port and insert the cable connector into the line card port.
Repeat Step 6 for the remainder of the interface cables for this line card.
You must reconnect any cables that were disconnected from the GRP console port, auxiliary port, or either of the Ethernet ports, RJ-45 or MII.
If you disconnected a cable from the external alarm port on either or both of the alarm cards, you must reconnect those cables now.
Figure 47 shows how to reinstall the blower module in the upper blower module bay of the chassis. Because the upper and lower blower modules are the same Cisco part, the only difference in reinstalling the lower blower module is in the orientation of the blower module for insertion into the lower blower module bay. The lower blower module is installed with the three fan air intake openings facing up, while the upper blower module is installed with the air intake openings facing down.

To reinstall a blower module in the chassis, use Figure 47 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 2.)
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.
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.)
Step 5 Tighten the two captive screws on the blower module faceplate.
Step 6 Position the front cover of the blower module over the four ball stud sockets around the blower module bay and power shelf and snap the front cover in place.
Repeat these steps for the other blower module.
This section contains two procedures:
Select the appropriate procedure for your router.
Figure 48 shows the steps in installing the AC-input power supply in the power shelf.

![]() | Caution The AC-input power supply weighs 12.7 lb (5.7 kg). Because of the weight of the power supply and the elevated position of the power shelf, you should use two hands when handling a power supply. |
To reinstall an AC-input power supply, use Figure 48 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 2.)
Step 2 Lift the ejector lever spring clip on the power supply and pivot the ejector lever until it is perpendicular to the power supply faceplate. (See Figure 48a.)
![]() | Caution To prevent damage to the power shelf backplane connector, do not use excessive force when inserting a power supply into the bay. |
Step 3 Using two hands to support and guide the power supply, slide it into the power shelf until the connector on the back of the power supply just makes contact with the connector on the backplane of the power shelf. (See Figure 48b.)
Step 4 Seat the power supply in the power shelf backplane by pivoting the ejector lever to hook the slot on the floor of the power shelf and then pushing the ejector lever until it is flush with the power supply faceplate. (See Figure 48c.)
Repeat Step 2 through Step 4 for the remaining AC-input power supplies.
![]() | Caution A Cisco 12016 GSR must be operated with all of its power modules installed at all times for electromagnetic compatibility (EMC). |
Figure 49 shows the steps in reinstalling the DC-input power entry module in the power shelf.

![]() | Caution The DC-input power entry module weighs 6.4 lb (2.9 kg). Because of the weight of the power entry module and the elevated position of the power shelf, you should use two hands when handling the power entry module. |
To reinstall the DC-input power entry module, use Figure 49 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 2.)
Step 2 Loosen the ejector lever captive screw on the power entry module and pivot the ejector lever until it is perpendicular to the power entry module faceplate. (See Figure 49a.)
![]() | Caution To prevent damage to the power shelf backplane connector, do not use excessive force when inserting a power entry module into the power shelf. |
Step 3 Using two hands to support and guide the power entry module, slide it into the power shelf until the connector on the back of the power entry module makes contact with the connector on the backplane of the power shelf. (See Figure 49b.)
Step 4 Seat the power entry module in the backplane connector by pivoting the ejector lever to engage the slot in the floor of the power shelf and then pushing the ejector lever until it is flush with the power entry module faceplate. (See Figure 49c.)
Step 5 Tighten the captive screw on the ejector lever. (See Figure 49d.)
Repeat Step 2 through Step 5 for the remaining DC-input power entry modules.
![]() | Caution A Cisco 12016 GSR must be operated with all of its power modules installed at all times for electromagnetic compatibility (EMC). |
This section provides two procedures:
To install 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 If you have not already done so, open the air filter door on the front of the chassis. (See Figure 3):
(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.
![]() | 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 Get the air filter door and four Phillips-head screws you removed earlier.
Step 4 Hold the front cover by its outside edges and align the screw holes in the front cover with the holes on the air filter door.
Step 5 Working from the back side of the air filter door, insert the four screws one at a time and loosely tighten them with your fingers.
Step 6 Verify that the front cover is aligned correctly on the air filter door and use the Phillips screwdriver to tighten the four screws.
![]() | Caution
Do not overtighten the screws. |
Step 7 Close and fasten the air filter door:
(a) Grasp the sides of the air filter door front cover and pivot 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.
![]() | 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.
![]() | Caution The air filter door must be closed and secured at all times to maintain correct EMI performance. |
To install a snap-on front cover, follow these steps:
Step 1 Starting with the front cover for the power shelf and upper blower module, hold the 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.
Follow these steps to restart the router and verify that it restarts successfully after replacing the chassis:
Step 1 Verify that the following conditions are true:
Step 2 Ensure that a console terminal is connected to the GRP console port and turned on, or that you have a remote login to the router from another device through a telnet session. (You will need to check the startup banner and displays to ensure that the system restarts properly and that all the interfaces reinitialize in the proper state.)
Step 3 Verify that all source voltage circuit breakers supplying power to your system are on.
Step 4 Observe the power module LEDs:
Step 5 Visually check the two LEDs on the front of each blower module. When the blower module is operating correctly, the green LED labeled OK should be on and the red LED labeled FAIL should be off. Listen for the blowers in the blower modules; you should immediately hear them operating. In a noisy environment, the blowers might be difficult to hear; therefore, place your hand in front of the exhaust vents near the top and bottom rear of the chassis to verify that the blowers are operating.
Step 6 Visually check the LEDs on the two alarm cards. When the system is operating correctly, the following LED conditions should be true:
Step 7 On the console terminal, verify that the console displays the system banner and that the system and all interfaces initialize successfully.
If the power supplies do not power up, or if the system or any interfaces do not initialize properly, refer to the Cisco 12016 Gigabit Switch Router Installation and Configuration Guide that shipped with your router for additional information and installation troubleshooting procedures. If you are still unable to resolve the problem, contact your Cisco service representative for assistance.
This section provides the following procedures:
Figure 50 shows how to install the chassis and scissor-jack platform on the shipping pallet.

To reinstall the chassis and scissor-jack platform on the shipping pallet, use Figure 50 as a reference and follow these steps:
Step 1 Use the bolts you removed earlier to attach the eight hold-down brackets to the four sides of the scissor-jack platform (two brackets on each side).
Step 2 Position the U-shaped pallet body behind the scissor-jack pallet with the opening facing the back panel of the chassis.
Step 3 Use the 3/4-inch (19-mm) socket and ratchet wrench to turn the scissor-jack screw slowly counterclockwise to expand the scissor-jack platform and raise the top of the scissor-jack platform high enough for the hold-down brackets to clear the top of the pallet body.
Step 4 Slide the pallet body around the scissor-jack platform.
Step 5 Slide the pallet front bar into the opening on the pallet body and use the hinge locks to secure it as instructed in these steps:
(a) Pivot the butterfly handle on the hinge lock up so that it is perpendicular to the body of the hinge lock.
(b) Twist the butterfly handle counterclockwise to extend the hinge lock hook to its maximum reach.
(c) Lower the hinge lock hook over the hinge lock catch on the pallet body.
(d) Twist the butterfly handle clockwise to clamp the hinge lock hook on the hinge lock catch on the pallet body.
(e) Pivot the butterfly lever down onto the hinge lock body so that it lies flat.
Step 6 Shift the pallet to ensure that it is positioned evenly all the way around the scissor-jack platform and that the bolt holes in the hold-down brackets on the scissor-jack platform are aligned with the holes in the top of the shipping pallet.
Step 7 Turn the scissor-jack screw slowly clockwise to collapse the scissor-jack platform and lower the top of the scissor-jack platform slowly until the hold-down brackets contact the top of the shipping pallet.
Step 8 Set a blocking plate into the hold-down bracket so that the blank side of the blocking plate is against the heads of the bolts in the side of the scissor-jack platform and the open holes in the blocking plate align with the bolt holes in the top of the pallet.
Step 9 Insert bolts through each of the hold-down bracket holes and into the holes in the top of the shipping pallet, then use the 9/16-inch (14-mm) wrench to tighten the bolts.
Step 10 Turn the scissor-jack screw slowly clockwise to collapse the scissor-jack platform and raise the base of the scissor-jack platform until the weight of the chassis and scissor-jack platform is absorbed by the pallet. Continue turning the scissor-jack screw clockwise to close the scissor-jack platform and lift the base of the scissor-jack platform until it is completely closed (the screw can not be turned).
Figure 51 shows the Cisco 12016 GSR chassis in an exploded view of the parts making up the shipping container.

To repackage the chassis, use Figure 51 as a reference and follow these steps:
Step 1 Verify that the anchor clips fastening the chassis to the scissor-jack platform are installed correctly and that the bolts are tight.
Step 2 Verify that the bolts fastening the hold-down brackets to the sides of the scissor-jack platform and the top of the pallet are tight.
Step 3 If required, place the accessories package against the back panel of the GSR on the extended deck of the pallet body.
Step 4 To install the U-shaped, corrugated side panels, use Figure 51 as a reference and follow these steps:
(a) Set the long side of one panel on the pallet base such that it sits inside the bead-boards attached to the outside corners of the pallet riser blocks and against the side of the pallet platform.
(b) Set the narrow end flaps of the panel inside the bead-boards attached to the outside corners of the pallet riser blocks.
(c) Position the opposite U-shaped side panel such that one narrow end flap is inside the narrow end flap of the first U-shaped side panel, while the other narrow end flap is outside the narrow end flap of the first U-shaped side panel.
Step 5 To fasten the two U-shaped side panels together, use Figure 51 as a reference and follow these steps.
(a) Starting at one of the top holes on one narrow side panel, align the holes in the inner and outer corrugated panels.
(b) Open a plastic locking clip by pulling the wedge block out of the clip.
(c) Insert the clip into the hole, then pivot the wedge block into the opening on the body of the clip and push firmly until it snaps into place, spreading the butterfly tabs and locking the inner and out side panels together.
(d) Repeat steps (a) and (c) for the remaining holes on the narrow side panel.
(e) Repeat steps (a) through (d) for the opposite narrow side panel.
Step 6 Set the corrugated top cap on top of the container side panels and push it down.
Step 7 Use a strapping machine to wrap two straps end-to-end and two straps side-to-side over the top of the shipping container to secure it to the pallet.
The Cisco 12016 GSR chassis is now repackaged and ready to be transported. Use a forklift or pallet jack to move the repackaged chassis.
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:
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
This class A digital apparatus complies with Canadian ICES-003.
Cet appareil numerique de la classe A est conforme a la norme NMB-003 du Canada.
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 (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:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.

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Posted: Thu Dec 2 03:08:42 PST 1999
Copyright 1989-1999©Cisco Systems Inc.