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This chapter presents the procedures for installing and starting the Cisco 12008. It contains the following sections:
The Cisco 12008 offers the following mounting options:
The installation procedures presented in this chapter pertain only to the first two of these mounting options.
Ensure that you have selected and prepared a compatible location for installing the router. Consider the following:
 | Caution You cannot use an AC-input power supply and a DC-input power supply in the same router. All power supplies installed in a router must be of the same type. Do not attempt to install an AC-input power supply in a router with a DC-input power supply, or vice versa. |
Mounting brackets are shipped with every Cisco 12008 as part of an accessory kit. These mounting brackets are designed for use with either a telco-style (2-post) or a 4-post equipment rack. For simplicity, the procedure in this section describes the use of the mounting brackets in conjunction with a telco-style rack.
Use of the mounting brackets is optional; you can install the Cisco 12008 in the rack without using these brackets. However, due to the size and weight of the router, it is recommended that these brackets not only be used, but also that two or more people install the router to minimize the risk of personal injury or damage to the equipment.
To prepare for router installation, you can install the mounting brackets directly opposite each other in the rack at any desired height. The height chosen should take into account the following factors:
You can install a single Cisco 12008 at any height in the rack, or you can "stack" as many as three routers in the rack to make maximum use of available rack space. Each installed router requires 25 inches of rack space (63.5 cm). The height of each router is 24.85 inches (63.1 cm), leaving a minimum of tolerance between each rack-mounted router.
In all cases, you should consider current and future equipment needs in determining the appropriate height for installing your router, while at the same time attempting to maintain as low a center of gravity as possible for all rack-mounted equipment.
If you choose not to install the mounting brackets, proceed to the following section entitled "Removing Components from the Router."
To install the mounting brackets (see Figure 3-1), perform the following steps:
Step 1 Determine the proper height to install the mounting brackets in the rack.
To promote rack stability and a low center of gravity once the router is installed, attach the mounting brackets at the minimum practical height suitable to your equipment and cabling requirements.
Step 2 Position a mounting bracket on one of the posts at the desired level.
The mounting bracket is designed in a way that enables one of the lowest three holes in the bracket to match a hole in the mounting posts of the rack; the same is true for the highest three holes in the mounting bracket. Thus, you can secure the mounting bracket to the mounting post in the rack with two screws.
Step 3 Secure the bracket to the post using two screws provided in the accessory kit.
Step 4 Repeat Step 2 and Step 3 to secure a second mounting bracket on the opposite post, making sure that both brackets are installed at the same height.
For the procedures in this section, it is assumed that you have unpacked the router, as instructed in the document Cisco 12008 Gigabit Switch Router System Packing and Unpacking Instructions posted on the outside of the shipping container.
It is assumed further that you have positioned the router near the intended installation site and that you have accomplished all other preparatory installation tasks, as described in Chapter 2, "Preparing for Installation."
A Cisco 12008 arrives in its shipping container configured as ordered, complete with power supplies and circuit boards. Since even a minimally configured system is quite heavy, it is strongly recommended that you remove the following components from the router before attempting to install it in a rack:
The card cage fan tray (12 lb), the power supply fan tray (2 lb), and the SFCs (2 lb each) in the lower card cage (if installed) contribute approximately 20 lb (9.1 kg) to the overall weight of the router; these components can be removed from the router at the discretion of the installer prior to mounting the router in the rack.
The upper card cage, which forms an integral part of the router enclosure (see Figure 1-8), houses the following router components:
This section contains procedures for removing these cards from the upper card cage preparatory to mounting the router enclosure in a rack.
| Caution As you remove the cards from the upper card cage, place them on antistatic mats for ESD protection until they are reinstalled in the router. |
To remove a card from the upper card cage, perform the following steps:
Step 1 Attach an antistatic ESD wrist strap to your wrist; ensure that it makes good contact with your skin.
Step 2 Insert the equipment end of the wrist strap (the banana jack) into the ESD connection socket near the lower left corner of the upper card cage. Figure 1-2 shows the location of this socket in the body of the router enclosure.
Step 3 Proceeding from left to right for all of the installed cards in the upper card cage, write down each card's type and its location in the card cage.
Step 4 Starting with the left-most card, loosen the two captive installation screws located at the top and bottom of the card (see Figure 3-2a).
Step 5 Pivot the two card ejector levers away from the faceplate to unseat the card from the backplane (see Figure 3-2b).
Step 6 Touching only the metal card carrier and the card faceplate, slide the card out of its slot (see Figure 3-2c) and carefully place it (component side up) on an antistatic mat for ESD protection.
Go back to Step 3 and repeat the procedure as many times as necessary to completely depopulate the upper card cage. Stack the removed cards on the antistatic mat in their order of removal, thus leaving them properly ordered for later reinstallation.
The router is shipped with all the circuit boards and the AC-input or the DC-input power supply(ies) already installed, as ordered, but without any cables connected.
To remove a power supply from the router, perform the following steps:
Step 1 Set the rotary power switch on each power supply, as follows:
Step 2 Using a flat-blade screwdriver, turn the captive installation screw on the power supply faceplate counterclockwise until it is freed from the sheet metal flange of the power supply bay.
Step 3 Grasp the power supply carrying handle with one hand and pull the unit halfway out of the bay (see Figure 3-3).
| Caution Use both hands in removing a power supply. |
Step 4 Place your free hand beneath the power supply to support its weight and slide the unit completely out of the bay.
Step 5 Set the power supply aside temporarily until you are ready to reinstall it following completion of the rack-mounting procedure described in the following section entitled "Rack-Mounting the Cisco 12008."
Go back to Step 1 and repeat the procedure to remove the second power supply, if one is present.
If you intend to use your router with a single power supply of either type, the power supply blank must remain in place at all times for EMI compliance and to ensure that cooling air flows properly through the router.
This section presents the procedures for mounting the Cisco 12008 in a rack.
For the purposes of this procedure, it is assumed that you have installed the two mounting brackets in a telco-style rack at the desired height in preparation for installing the router (see the earlier section entitled "Installing the Mounting Brackets"). It is also assumed that you have removed the power supplies and all of the components in the upper card cage to minimize the weight of the router.
| Caution The Cisco 12008, including the backplane, the power supply fan trays, and the SFCs (if installed), weighs approximately 75 pounds (34.1 kg). For safety, a minimum of two people should install the router in the rack. To prevent injury when lifting the router, keep your back straight and lift with your legs. |
To remove the router from the shipping pallet and mount it in a rack, perform the following steps:
Step 1 Remove the four lag screws and retainer clips that secure the router to the shipping pallet.
Step 2 Affix the two lifting handles provided in the accessories box to the sides of the router enclosure, as shown in Figure 3-4.
Step 3 With one person standing at either side of the router, grasp the lifting handle affixed to the side of the router and lift the router off the shipping pallet.
Step 4 With the assistance of a third person, position the router in the rack. Temporarily rest the weight of the router on the mounting brackets (see Figure 3-5).
Step 5 Remove the two lifting handles from the side panels of the router before attempting to slide the router into the rack.
Step 6 Slide the router into the rack until the rack-mounting flanges on each side of the router rest against the rack-mounting posts.
Adjust the position of the router slightly, as necessary, to align two holes at both the top and the bottom of each rack-mounting flange on the router with corresponding holes in each mounting post.
In standard EIA and telco-style racks, the holes in each mounting post should align with the holes in each rack-mounting flange on the router, as follows:
Thus, to properly secure the router to the mounting posts in a telco-style rack, you should use a total of 8 screws--four per mounting flange.
Step 7 Secure the router to the mounting posts using the screws provided in the accessories box.
This section presents the procedures for reinstalling the components removed from the router in preparation for rack mounting the chassis.
Before attempting to reinstall the cards in the upper card cage, refer to the notes you made when you depopulated the upper card cage (see Step 3 in the section entitled "Removing Cards from the Upper Card Cage").
To replace a card in the upper card cage, perform the following steps:
Step 1 Attach an antistatic ESD wrist strap to your wrist; ensure that it makes good contact with your skin.
Step 2 Insert the equipment end of the wrist strap (the banana jack) into the ESD connection socket near the lower left corner of the upper card cage. Figure 1-2 shows the location of this socket in the body of the router enclosure.
Step 3 Select the top card from the antistatic mat. It is assumed that you will reinstall the cards in the upper card cage in reverse order. That is, the top card that you placed earlier on the antistatic mat should be the first card to be reinstalled in the router (see Step 6 in the section entitled "Removing Cards from the Upper Card Cage").
Step 4 Grasp the front edge of the metal card carrier with one hand and place your other hand under the carrier to support the card's weight and guide it into the card cage slot.
Step 5 Carefully slide the card carrier into the slot until the ejector levers make contact with the top and bottom edges of the card cage.
Step 6 Grasp the line card ejector levers and pivot them toward the card faceplate until they are perpendicular to the faceplate. This action completely seats the card in the backplane.
Step 7 Tighten the two captive installation screws at the top and bottom of the card faceplate.
Go back to Step 3 and repeat the procedure until you have fully repopulated the upper card cage with the previously removed cards.
In this section, it is assumed that you will be reinstalling a power supply that you removed from the power supply bay in preparation for rack mounting the router (see the section entitled "Removing a Power Supply from the Router"). It is also assumed that the router has been mounted in the rack and that you are reinstalling the previously removed components.
The process of reinstalling a power supply is the reverse of the removal procedure depicted in Figure 3-3.
To reinstall a power supply that was removed prior to rack mounting the router, perform the following steps:
Step 1 Verify that the rotary power switch on the power supply to be reinstalled is set, as follows:
Step 2 Grasp the power supply carrying handle with one hand.
| Caution The AC-input power supply weighs 17 lb (7.72 kg); the DC-input power supply weighs 14 lb (6.36 kg). Use both hands when handling these units. |
Step 3 While lifting the power supply by its carrying handle, place your free hand beneath the unit to support its weight.
Step 4 Position the power supply appropriately for insertion into the power supply bay.
Step 5 Gently slide the power supply into the bay until its faceplate meets the sheet metal flange of the power supply bay.
This action engages the blind mating connector at the rear of the power supply with its companion backplane connector.
| Caution To prevent damage to the backplane, do not use excessive speed or force when sliding the power supply into the bay. |
Step 6 Using a flat-blade screwdriver, turn the captive installation screw on the power supply faceplate clockwise until it is tight, thus securing the power supply in the bay.
This section presents the procedures for installing the network interface cables in the cable-management system and attaching the cables to the appropriate line card ports.
The cable-management system consists of two components:
Additional line card installation information is contained in the configuration note that accompanies each line card that is shipped from the factory as an installed component or that is ordered and shipped separately as an FRU.
For example, for additional line card information, you can consult the appropriate configuration note(s) for the line card(s) installed in your router, as outlined below:
To install the network interface cables in the cable-management system and connect the cables to the line cards, perform the following steps:
Step 1 Attach an antistatic ESD wrist strap to your wrist; ensure that it makes good contact with your skin.
Step 2 Insert the equipment end of the wrist strap (the banana jack) into the ESD connection socket near the lower left corner of the upper card cage. Figure 1-2 shows the location of this socket in the body of the router enclosure.
Step 3 Beginning with the left-most line card in the upper card cage, identify the interface cables that attach to this line card.
Step 4 Select one interface cable at a time and carefully route it through the left end of the horizontal cable-management tray and down through the vertical cable-management bracket to the appropriate line card port.
Step 5 Starting with the bottom port (on multiport line cards only), connect the interface cable to the port (see Figure 3-6a).
Step 6 Carefully press the interface cable into the cable keeper clip nearest the port of connection (see Figure 3-6b).
Make sure that you do not introduce any sharp bends or kinks into the cable in securing the cable to the keeper clip.
Step 7 Carefully press the cable into the bottom of the raceway in the vertical cable-management bracket (see Figure 3-6c).
Again, make sure that you do not introduce any kinks or sharp bends in the interface cable. The cable should lie in the bottom of the raceway without slack.
Step 8 Repeat the procedure in Step 4 through Step 7 for the remaining ports on the left- most line card.
When you have completed installing the network interface cables on the left-most line card, proceed to the next card in turn in the upper card cage. Repeat this procedure until you have installed all of the network interface cables on all of the line cards present in the upper card cage.
This section identifies the connection equipment and provides pinout information for the console, auxiliary, and Ethernet ports on the GRP faceplate.
The GRP faceplate has two EIA/TIA-232 ports:
Before connecting a terminal to the console port on the GRP faceplate, configure the terminal to match the GRP console port. Use the following settings:
You need an EIA/TIA-232 DCE console cable to connect the terminal to the console port on the GRP faceplate.
For the auxiliary port on the GRP faceplate and any equipment that you connect to it, you must supply your own interface cables.
Table 3-1 lists the pinouts for the console port on the GRP faceplate. The console port requires a straight-through EIA/TIA-232 cable.
Both the Data Set Ready (DSR) and Data Carrier Detect (DCD) signals are on whenever the system is running.
The console port does not support modem control or hardware flow control.
| Pin | Signal | Direction | Description |
|---|---|---|---|
| 1 | GND | - | Ground |
| 2 | TxD | Output | Transmit Data |
| 3 | RxD | Input | Receive Data |
| 6 | DSR | Input | Data Set Ready (always on) |
| 7 | GND | - | Ground |
| 8 | DCD | Input | Data Carrier Detect (always on) |
| 20 | DTR | Output | Data Terminal Ready |
Table 3-2 lists the pinouts for the auxiliary port on the GRP faceplate. The auxiliary port supports hardware flow control and modem control.
The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) input.
| Pin | Signal | Direction | Description |
|---|---|---|---|
| 1 | Signal Ground | - | Signal Ground |
| 2 | TxD | Output | Transmit Data |
| 3 | RxD | Input | Receive Data |
| 4 | RTS | Output | Request To Send (used for hardware flow control) |
| 5 | CTS | Input | Clear To Send (used for hardware flow control) |
| 6 | DSR | Input | Data Set Ready |
| 7 | Signal Ground | - | Signal Ground |
| 8 | CD | Input | Carrier Detect (used for modem control) |
| 20 | DTR | Output | Data Terminal Ready (used for modem control only) |
| 22 | RING | Input | Ring |
The GRP faceplate is equipped with the following Ethernet ports:
Both connectors support IEEE 802.3u interfaces compliant with the 100Base-TX and 10Base-T standards.
The MII connector requires an external transceiver that permits connection to multimode fiber for 100Base-FX or 100Base-T4 physical media.
Only one Ethernet connector can be used at a time. The two LEDs on the GRP faceplate are used to show which Ethernet port is active.
The network side of your 100-Mbps transceiver should be equipped with an appropriate connector. The connector type depends on the type of media you use between the MII connector and other equipment. For example, you might use an ST-type connector (for optical fiber) or a BNC connector.
Figure 3-9 shows the pin orientation of the female MII receptacle for the GRP Ethernet port.
The MII receptacle uses two screw-type locks, called jackscrews, to secure the cable or transceiver to the MII port. MII cables and transceivers have knurled thumbscrews that you fasten to the jackscrews on the MII connector and tighten with your fingers. Use these jackscrews to secure the MII cable to the MII receptacle incorporated on the GRP faceplate.
Table 3-3 lists the signals used on the MII receptacle. Any pins not listed in this table are not used.
| Pin | In | Out | I/O | Description |
|---|---|---|---|---|
| 14 to 17 | - | Yes | - | Transmit Data (TxD) |
| 12 | Yes | - | - | Transmit Clock (Tx_CLK)1 |
| 11 | - | Yes | - | Transmit Error (Tx_ER) |
| 13 | - | Yes | - | Transmit Enable (Tx_EN) |
| 3 | - | Yes | - | MII Data Clock (MDC) |
| 4 to 7 | Yes | - | - | Receive Data (RxD) |
| 9 | Yes | - | - | Receive Clock (Rx_CLK) |
| 10 | Yes | - | - | Receive Error (Rx_ER) |
| 8 | Yes | - | - | Receive Data Valid (Rx_DV) |
| 18 | Yes | - | - | Collision (COL) |
| 19 | Yes | - | - | Carrier Sense (CRS) |
| 2 | - | - | Yes | MII Data Input/Output (MDIO) |
| 22 to 39 | - | - | - | Common (ground) |
| 1, 20, 21, 40 | - | - | - | +5.0 volts (V) |
Figure 3-10 shows the pin orientation of the female RJ-45 receptacle for the GRP Ethernet port.
Table 3-4 lists the signals used on the RJ-45 connector.
| Pin | Signal |
|---|---|
| 1 | TX+ |
| 2 | TX- |
| 3 | RX+ |
| 4 | Termination Network |
| 5 | Termination Network |
| 6 | RX- |
| 7 | Termination Network |
| 8 | Termination Network |
The clock and scheduler card (CSC) incorporates a 25-pin D-sub connector on the card faceplate (see Figure 3-11) that enables you to attach a site-wide external alarm monitoring facility to the Cisco 12008. This facility is described in Chapter 1 in the section entitled "Housekeeping and Alarm Monitoring Functions of the CSC."
The alarm signals sent to this DB-25 connector correspond to those sent to the system alarm LEDs on the CSC faceplate (see Figure 3-11). Thus, a critical, major, or minor alarm condition detected in the router can trigger a simultaneous fault indication in some or all of the following ways:
Figure 3-12 shows an expanded view of the DB-25 connector on the CSC faceplate.
Table 3-5 lists the common, normally open, and normally closed relay contacts accessible to an external alarm monitoring facility by means of the DB-25 connector.
| Pin Group | Common | Normally Open | Normally Closed |
|---|---|---|---|
| Critical audible alarm | 2 | 1 | 14 |
| Major audible alarm | 16 | 3 | 15 |
| Minor audible alarm | 5 | 4 | 17 |
| Critical visible alarm | 19 | 6 | 18 |
| Major visible alarm | 8 | 7 | 20 |
| Minor visible alarm | 22 | 9 | 21 |
| Alarm input | 13 | 25 |
Figure 3-13 shows the location of the grounding holes on the side panel of the router. Matching holes appear in the opposite side panel, enabling you to attach the grounding cable to either one side of the router or the other, but not both.
To ensure that the system grounding connection is adequate, you need the following parts and tools:
To attach the grounding lug and cable to the grounding receptacle on the Cisco 12008, perform the following steps:
Step 1 Use a wire-stripping tool to remove approximately 0.75 inch (19 mm) of the covering from the end of the grounding wire.
Step 2 Insert the stripped end of the grounding wire into the open end of the grounding lug.
Step 3 Use the crimping tool to secure the grounding wire in place in the grounding lug.
Step 4 Using a 1/4-inch flat-blade screwdriver, remove the rear access cover of the router. To do so, loosen the two captive installation screws at the bottom of the cover; pivot the cover up and away from the router to release the three access cover tabs from their slots. Set the access cover aside temporarily.
Step 5 Locate the grounding receptacle on the side panel of the router (see Figure 3-13).
Step 6 Place the grounding lug against the grounding receptacle on the side panel of the router.
Step 7 Insert two screws through the holes in the grounding lug and the grounding receptacle. Ensure that the grounding lug will not interfere with other router hardware or rack equipment.
Step 8 Install the locking washers and nuts; tighten them to secure the grounding lug to the grounding receptacle.
Step 9 Reinstall the rear access cover on the router. To do so, insert the three tabs of the access cover into their corresponding slots in rear of the router enclosure; pivot the cover downward until it rests against the bottom of the router enclosure. Using a 1/4-inch flat-blade screwdriver, tighten the two captive installation screws in the bottom of the rear cover to securely fasten the cover in place.
Step 10 Prepare the other end of the grounding wire and connect it to an appropriate grounding point in your site to ensure adequate earth ground for the router.
This section presents the procedures for applying source power to either an AC-input power supply or a DC-input power supply. It is assumed that you have already installed one or two AC-input power supplies or one or two DC-input power supplies, and that your task now is to connect source power to them.
Depending on the power supply type installed in your router, refer to one of the two following sections for instructions on connecting source power to the power supply.
In the following procedure, you are assumed to have an AC-input power supply already installed in your router; you need to connect it to an AC power source. If an AC-input power supply is not already installed, perform the procedures in the earlier section entitled "Reinstalling the Power Supplies in the Router" before attempting to connect source AC power to the unit.
If you equip your router with a single AC-input power supply, install it in the bottom power supply bay.
To connect source power to an AC-input power supply, perform the following steps:
Step 1 Verify that the rotary power switch on the power supply is in the Standby (OFF) position.
For this purpose, refer to the section in Chapter 2 entitled "AC-Powered Systems."
Step 3 First ensure that the bail latch is pushed down; then plug the AC power cord into the AC receptacle on the power supply faceplate (see Figure 3-14).
Step 4 Position the bail latch over the power cord plug by pulling the latch up and over the plug to secure the plug in the AC receptacle on the power supply faceplate (see Figure 3-14).
Step 5 Connect the other end of the AC power cord to the source AC outlet for your site (see Figure 3-14).
Step 6 Go back to Step 1 and repeat the procedure to connect source AC power to the second (redundant) AC-input power supply, if one is present.
| Caution At this time, do not turn the rotary power switch to the ON (|) position on either a single or a redundant AC-input power supply. |
Step 7 Turn on the source AC circuit breaker that services the AC-input power supply(ies).
Before applying power to your Cisco 12008, go to the section entitled "Starting the Cisco 12008."
In the following procedure, you are assumed to have a DC-input power supply already installed in your router; you need to connect it to a DC power source. If a DC-input power supply is not already installed, perform the procedures in the earlier section entitled "Reinstalling the Power Supplies in the Router" before attempting to connect source DC power to the unit.
If you equip your router with a single DC-input power supply, install it in the bottom power supply bay.
Also, before attempting to connect source power to a DC-input power supply, review the content of the section in Chapter 2 entitled "DC-Powered Systems," which deals with the following topics:
To connect source power to a DC-input power supply, perform the following steps:
Step 1 Verify that the rotary power switch on the DC-input power supply is in the OFF (O) position.
| Caution Before proceeding to the next step, verify that the source DC circuit breaker servicing the source DC power cables you are attaching to the DC-input power supply is in the OFF position. As an additional check, measure the voltage across the DC power cable leads that you intend to connect to the power supply. The voltage reading should be zero. |
Step 2 Loosen the knurled thumbscrew that secures the plastic safety cover to the faceplate of the power supply. Slide the plastic safety cover to the right and upward until it can be removed from the knurled thumbscrew and the two standoffs in the power supply faceplate. Set the cover aside temporarily.
Step 3 Attach the source DC power cables to the power supply terminals in the following order:
(a) Ground
(b) + (positive)
(c) - (negative)
Step 4 Remove the loosely mounted nuts and locking washers from the earth ground terminals on the power supply faceplate; place the grounding cable over the ground terminals; secure the cable in place on the terminals with the supplied nuts and locking washers (see Figure 3-15a); tighten the nuts with a 10-mm nut driver or 1/4-inch socket wrench. Dress the cable up to the right and away from the power supply faceplate.
| Caution Do not overtighten the nuts; a firm tightening only is recommended. |
Step 5 Repeat the procedure outlined in Step 4 to connect the proper power cable to the + (positive) terminals on the power supply faceplate (see Figure 3-15b).
Step 6 Repeat the procedure outlined in Step 4 to connect the proper power cable to the - (negative) terminals on the power supply faceplate (see Figure 3-15c).
Step 7 If you intend to attach an external alarm monitoring facility to the circuit breaker alarm terminal block on the power supply, do so at this time. For an illustration of how the leads from the alarm monitoring facility are connected to the alarm terminal block, refer to Figure 7-9 in the section entitled "Adding a DC-Input Power Supply" in Chapter 7.
The section in Chapter 1 entitled "Circuit Breaker Alarm Terminal Block" describes the alarm monitoring facility in greater detail. This facility provides an overt (visible or audible) indication that an overcurrent (fault) condition has occurred in the DC-input power supply.
Step 8 Verify that the source DC cables from the source DC circuit breaker to the power supply terminals are properly installed and that the locking washers and nuts are securely fastened to the terminals.
Step 9 Reinstall the plastic safety cover by placing it over the two standoffs and the knurled thumbscrew on the power supply faceplate, sliding the cover to the left and downward until it is seated, and hand tightening the knurled thumbscrew.
Step 10 Repeat the procedure in Step 1 through Step 8 to connect source DC power to the second (redundant) DC-input power supply, if one is present.
| Caution At this time, do not turn the rotary power switch to the ON (|) position for either a single or a redundant DC-input power supply. |
Step 11 Turn on the source DC circuit breaker that services the DC-input power supply(ies).
You are now ready to start up your Cisco 12008, as described in the following section.
This section presents the procedures for starting up your Cisco 12008. It is assumed that you have completed all essential site preparation and installation tasks, including the connection of network interface cables to line cards and the connection of source power cables to the power supply(ies).
To start up your Cisco 12008, perform the following steps:
Step 1 Verify that the following conditions are satisfied:
Step 2 Turn the rotary power switch on the power supply(ies) to the ON (|) position and observe the status of the LEDs on the power supply faceplate.
Step 3 Listen for the fans in the card cage fan tray and the power supply fan tray to power up. You should hear the fans come up to normal rotational speed in about 2 seconds.
In a noisy environment, you can check fan operation by placing your hand in front of the air filter assembly and the power supply fan tray to determine if air is being drawn into the interior of the router. Alternatively, you can place your hand at the top rear of the router to determine if air is being exhausted from the vents in the rear panel of the router enclosure.
This completes the initial installation procedures for the Cisco 12008. You can now proceed with the basic router configuration tasks, as presented in Chapter 4, "Observing System Startup and Performing a Basic Configuration."
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