|
|
After you install and configure your Cisco 12012, you might need to perform specific maintenance procedures and operations to ensure that the router continues to operate properly, to upgrade specific system components or replace field replaceable units (FRUs). This chapter describes procedures and maintenance operations required to maintain your Cisco 12012. (Where appropriate, you are referred to specific procedures in the chapter "Installing a Cisco 12012.")
Your Cisco 12012 is configured to your order and is ready for installation and startup when it leaves the factory. In the future, as your networking requirements change, you might need to upgrade your system, add components, replace components, or change the initial hardware configuration.
Following are specific maintenance procedures you might require for your Cisco 12012:
To prevent problems, before performing any procedures in this chapter, review the section "Safety Recommendations" in the chapter "Preparing for Installation."
Review the safety warnings listed in the document Regulatory Compliance and Safety Information for the Cisco 12012 Gigabit Switch Router (Document Number 78-4347-xx) that accompanied your Cisco 12012 before you reconfigure or perform maintenance procedures for your router.
The Cisco 12012 has a serviceable air filter mounted in a hinged tray on the front of the lower card cage. The air filter removes dust from the room air drawn into the Cisco 12012 by the two blower modules. Once a month (or more often in dusty environments) you should examine the air filter and replace it if it appears dirty.
You need the following tools to complete the air filter maintenance procedure:
You can perform this procedure while the Cisco 12012 remains powered up.
Perform the following steps to remove and clean the air filter:
Step 1 Loosen the two captive screws at the top of the air filter tray and pivot the tray down, away from the lower card cage. (See Figure 7-1.)
 | Caution Do not place any tools on the air filter tray or within the lower card cage. Damaging the honeycomb screen on the air filter tray or with the lower card cage could restrict the airflow causing an overtemperature condition in the router. |
Step 2 Using one hand to hold the air filter tray a 45-degree angle from the lower card cage, use your other hand to push up on the bottom of the air filter through the cutout on the bottom of the air filter tray.
Step 3 Lower the air filter tray to the horizontal position.
Step 4 Grasp the corners of the air filter and slide it out of the air filter tray.
Step 6 To vacuum the air filter, perform the following two steps:
(a) Move the air filter away from the lower card cage opening.
(b) Vacuum the surface of the filter thoroughly.
| Caution Do not vacuum the filter while it is installed or near the lower card cage opening; doing so can dislodge substantial amounts of dust, which could be drawn into the card cage assembly. Never wash a filter and install it in the system. Moisture drawn into the system can damage the components. |
Step 7 To replace the air filter, perform the following steps:
(a) Position the new air filter, so that the airflow arrow etched on the side of the filter points up.
The Cisco 12012 supports up to four AC-input power supplies. While the AC-input power supplies support online insertion and removal, you must observe the following conditions:
 | Warning AC operation requires a minimum configuration of two AC-input power supplies. |
You need the following tools to perform this procedure:
| Caution Do not mix AC-input and DC-input power supplies in a Cisco 12012. |
Perform the following steps to remove an AC-input power supply:
Step 1 Attach an ESD wrist strap to your wrist and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 If you have not already done so, turn the power switch to the STANDBY position on the power supply you want to remove. (See Figure 7-2a.)
Step 3 Disconnect the AC power cord from the source AC receptacle. (See Figure 7-2b.)
Step 4 Release the spring clip on the power supply faceplate. (See Figure 7-2c.)
Step 5 Disconnect the AC power cord from the power supply AC receptacle. (See Figure 7-2d.)
Step 6 Loosen the captive screw on the power supply faceplate. (See Figure 7-2e.)
Step 7 Grasp the power supply handle and pull straight out to disconnect the power supply from the backplane connector. Slide the power supply halfway out of the bay. (See Figure 7-3.)
| Caution The AC-input power supply weighs 18 lb (8 kg). Use two hands when handling the power supply. |
Step 8 Place your free hand underneath the power supply for support and slide the power supply completely out of the bay.
If you plan to return the old power supply to the factory, repackage it in the shipping container you received with the replacement power supply.
If you plan to upgrade your system by installing additional power supplies, you can install the power supply without removing power from the system.
| Caution The AC-input power supply weighs 18 lb (8 kg). Use two hands when handling the power supply. |
Perform the following steps to install a new or replacement AC-input power supply:
Step 1 Attach an ESD wrist strap to your wrist and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 Verify that the power switch on the replacement supply is in the STANDBY position. (See Figure 7-2.)
(a) Loosen the captive screw on the power supply blank faceplate.
(b) Slide the power supply blank out the front of the power supply bay.
(c) Retain the blank for possible future use.
| Caution To prevent damaging the power supply backplane connector, do not use excessive force when installing a power supply into the bay. |
Step 4 Using two hands to support and guide the power supply, slide it into the vacant bay. Push the power supply all the way into the power supply bay until the faceplate makes contact with the front of the bay.
Step 5 Tighten the captive screw on the power supply faceplate.
Step 6 Connect the AC power cord to the power supply AC receptacle. Clip the spring clip over the power cord plug.
Step 7 Connect the other end of the AC power cord to the source AC receptacle.
Step 8 Verify that any empty power supply bays have power supply blanks installed.
Step 9 Turn the power switch on each AC-input power supply to ON (|).
Step 1 Check the following to make sure they are secure:
If the AC OK LED is off, check for the following:
Step 3 Visually check that the red output fail LED flashes on and off for five seconds, then goes off.
If the power supply fails to operate properly after several attempts to power it up, contact a service representative for assistance.
The Cisco 12012 supports up to two DC-input power supplies. If one power supply fails in systems configured with two DC-input power supplies, the second supply has sufficient capacity to maintain uninterrupted operation of the router while you replace the defective power supply.
You need the following tools to install or replace a DC-input power supply:
| Caution Do not mix AC-input and DC-input power supplies in a Cisco 12012. |
Perform the following steps to remove a DC-input power supply:
Step 1 Attach an ESD wrist strap to your wrist and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 If you have not already done so, turn OFF (O) the power switch on the DC-input power supply.
| Warning Voltages might be present on the DC-input power supply terminals. Turn off the power source circuit breaker and remove the power supply before accessing the terminals. |
Step 3 Locate and turn off the source DC circuit breaker that services the power supply you want to remove. As an added precaution, tape the circuit breaker handle in the off position.
Step 4 Using a flat-blade screwdriver or a 10-mm nutdriver, turn the captive jackscrew counterclockwise (eject) on the power supply faceplate to unseat the power supply from the backplane power connector. Continue turning the jackscrew to disengage the jackscrew from the power supply bay (approximately 12 revolutions).
Step 5 Grasp the power supply handle and slide the power supply halfway out of the bay. (See Figure 7-4.)
| Caution The DC-input power supply weighs 19 lb (8.3 kg). Use two hands when handling the power supply. |
Step 6 Place your free hand underneath the power supply for support and slide the power supply completely out of the bay. Place the power supply face up on the floor in front of you.
Step 7 Loosen the two screws that secure the DC-input power supply front cover in place. Lift up slightly, then pull the front cover away from the power supply faceplate. Set the front cover aside. (See Figure 7-5.)
Step 8 Remove the two screws that secure the power cable bracket to the power supply faceplate and remove the cable bracket. (See Figure 7-6.) Set the bracket and screws aside.
| Caution Before proceeding to the next step, verify that the source DC circuit breaker servicing the DC power supply you are removing is in the OFF position. Also verify that the power switch on the DC-input power supply is OFF (O). As an additional check, measure the voltages across the leads attached to the power supply you have removed. All readings should be zero volts. |
Step 9 Disconnect the source DC power cable leads from the power supply lugs in the following order: negative (-), positive (+), and ground. (See Figure 7-7.)
Step 10 Pull the DC power cable leads down through the power supply handle and set the power cable aside.
Step 11 If leads are attached to the power supply circuit breaker external alarm terminal block, record on a piece of paper which terminals the leads are attached to for later reconnection.
Step 12 Disconnect the leads attached to the circuit breaker alarm terminal block. (Some sites might not have an external alarm system for the power supply circuit breaker.)
If you plan to return the old power supply to the factory, repackage it in the shipping container you received with the replacement power supply.
This section provides the procedures for replacing a defective DC-input power supply or installing a second DC-input power supply. If you are upgrading your Cisco 12012 with a second DC-input power supply for power supply redundancy, you must meet the following site power and source DC power cable requirements prior to installing the second power supply:
If you plan to upgrade your Cisco 12012 with a second DC-input power supply, you must remove the two power supply blanks covering the empty power supply bays before installing the power supply.
Perform the following steps to install a new or replacement DC-input power supply:
Step 1 Attach an ESD wrist strap to your wrist and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
| Caution The DC-input power supply weighs 19 lb (8.3 kg). Use two hands when handling the power supply. |
Step 2 Remove the replacement DC-input power supply from its shipping container.
Step 3 Verify that the power switch on the replacement power supply is in the OFF (O) position.
Step 4 Loosen the two screws that secure the DC-input power supply front cover in place. Lift up slightly then pull the front cover away from the power supply faceplate. Set the front cover aside. (See Figure 7-5.)
Step 5 Remove the two screws that secure the source DC power cable bracket to the power supply faceplate and remove the bracket.
| Caution Before proceeding to the next step, verify that the source DC circuit breaker servicing the DC power supply you are replacing is in the OFF position. Also verify that the power switch on the DC-input power supply is OFF (O). As an additional check, measure the voltages across the DC power cable leads you intend to attach to the power supply. All readings should be zero volts. |
Step 6 Thread the source DC power cable leads up underneath the power supply handle. Allow sufficient slack in the power cable for strain relief.
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
Step 7 Remove the nut and locking washer from each power supply threaded terminal and attach the source DC power cable lugs to the power supply terminals in the following order: ground to ground, positive (+) to positive (+), and negative (-) to negative (-). (See Figure 7-7.)
Step 8 Thread the power supply circuit breaker external alarm leads (if present) up through the power supply handle and attach them to the circuit breaker alarm terminal block on the power supply faceplate according to the notes you made in a previous step. (Some sites might not be equipped with a power supply circuit breaker external alarm.)
Step 9 Position the source DC power cable leads underneath the power supply handle on the power supply faceplate in the following order from left to right: negative (-), positive (+), and ground. Place the DC power cable bracket over the power cable leads and secure the cable leads and the cable bracket to the power supply faceplate with the two screws that you removed earlier. (See Figure 7-6.)
Step 10 Verify that the source DC wiring from the source DC breaker to the power supply is correct and that the terminal connections on the power supply are correct and tight.
Step 12 If you plan to upgrade your Cisco 12012 with a second DC-input power supply, you must remove the two power supply blanks covering the empty power supply bays before installing the power supply. To remove a power supply blank, complete the following steps:
(a) Loosen the captive screw on the power supply blank faceplate that secures the power supply blank to the card cage assembly.
(b) Slide the power supply blank out of the front of the power supply bay.
(c) Repeat steps (a) and (b) to remove the second power supply blank. Retain the two power supply blanks for possible future use.
| Caution To prevent damaging the backplane power connector, do not use excessive force when sliding the power supply into the bay. |
Step 13 Using two hands to support and guide the power supply, slide it into the vacant bay. (See Figure 7-9.) Push the power supply into the bay until the power supply captive jackscrew makes contact with the power supply bay.
Step 14 Using a flat-blade screwdriver or a 10-mm nutdriver, turn the captive jackscrew on the power supply faceplate clockwise (insert) to seat the power supply into the backplane power connector. Do not overtighten the jackscrew.
Visually check the following before turning the power supply power switch ON (|):
Perform the following steps to verify that the DC-input power supply powers up correctly.
Step 1 Turn the power supply power switch to ON (|).
Step 2 Verify that the Cisco 12012 powers up correctly. Visually check that the DC-input power supply input OK LED goes on and stays on.
If the power supply fails to operate properly after several attempts to power it up, contact a service representative for assistance.
To verify that the replacement blower module is operating properly, perform the following steps:
Step 1 Check that the blower module is inserted all the way into the frame, the two captive screws are tightened, and that the blower module front cover is securely installed on the front of the blower module.
Step 3 Observe the red fail LED visible through the blower module front cover:
If the blower module fails to operate properly, contact a service representative for assistance.
This section covers the removal and replacement of the card cage assembly.
The card cage assembly comprises a single assembly that includes the upper card cage, the lower card cage, and the power supply bays. The card cage assembly slides into and out of the frame and attaches to the frame with six captive screws.
For ease of removal, all components, with the exception of the air filter, must be removed from the old card cage assembly. A fully populated card cage assembly weighs approximately 230 lb (104.3 kg); removing the components reduces the weight to 65 lb (29.5 kg).
You need the following tools to perform this procedure:
Perform the following steps to power down the Cisco 12012:
Step 1 Turn the DC-input power supply power switch counterclockwise to the OFF (O) position (on an AC-input power supply, turn the power switch to STANDBY) on each power supply installed in the Cisco 12012.
Step 2 Verify that the system has powered down by checking that the input OK LED on each DC-input power supply (AC OK LED on the AC-input power supply) is off and that the green LED on each blower module is off.
If your system is configured with AC-input power supplies, remove each power supply according to the procedures in the section "Removing an AC-Input Power Supply" in this chapter.
If your system is configured with DC-input power supplies, remove each power supply by performing Step 1 through Step 6 of the procedure in the section "Removing a DC-Input Power Supply" in this chapter.
This section provides the procedures for removing the line cards, GRP, and alarm card from the upper card cage.
Perform the following steps to remove a line card from the upper card cage:
Step 1 Attach an ESD wrist strap to your wrist and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 Proceeding from left to right, identify each line card and write down the following information:
Step 3 Proceeding from left to right in the upper card cage, select a line card. Starting with the bottom port on the line card (on line cards with multiple ports), disconnect the network interface cable from the bottom port on the line card. (See Figure 7-10a.)
Step 4 Carefully remove the interface cable from the vertical cable-management bracket clips. (See Figure 7-10b.)
Step 5 Carefully remove the interface cable from the vertical cable-management bracket clip nearest the line card port. (See Figure 7-10c.)
Step 6 Carefully remove the interface cable from the horizontal cable-management tray and set the interface cable aside.
Step 7 Remove all the line cards according to the procedure in the section "Removing the Cards from the Upper Card Cage" in the chapter "Installing a Cisco 12012."
The GRP can be installed in upper card cage slot 0 through 11 (from left to right). Identify the slot the GRP occupies, make a note of it, disconnect the interface cables, and remove the GRP according to the procedures in the section "Removing the Cards from the Upper Card Cage" in the chapter "Installing a Cisco 12012."
After removing the GRP, carefully place it on an antistatic mat. You must install the GRP in the new card cage assembly.
The alarm card occupies the rightmost slot (labeled Alarm card) in the upper card cage. Remove the alarm card according to the procedures in the section "Removing and Replacing an Alarm Card" in this chapter.
After removing the alarm card, carefully place it on an antistatic mat. You must install the alarm card in the new card cage assembly.
Perform the following steps to remove the clock and scheduler cards and the switch fabric cards from the lower card cage.
Step 1 Remove all of the cards from the lower card cage according to the procedures in the section "Removing the Cards from the Lower Card Cage" in the chapter "Installing a Cisco 12012."
Step 2 Release the air deflector latch (turn the latch clockwise) and lower the air deflector down to its stops.
Step 3 Pivot the air filter tray up so that it is flush with the front of the lower card cage and tighten the two captive screws.
Your system might have two system grounding lugs attached to two system receptacles located on the card cage assembly side flanges between the air filter tray and the power supply bays. You must remove the system grounding connector before you can remove the card cage assembly.
Perform the following steps to remove a system grounding lug from the card cage assembly:
Step 1 Remove the two screws, washers, and nuts that secure the system grounding lug to the card cage assembly. Save the mounting hardware, you will use it in a later procedure.
Step 2 Remove the system grounding cable and set it aside.
Repeat Step 1 and Step 2 for a second system grounding connector.
Remove the empty card cage assembly according to the procedures in the section "Removing the Card Cage Assembly" in the chapter "Installing a Cisco 12012."
| Caution An empty card cage assembly weighs 65 lb (29.5 kg). You need two people to safely lift the assembly. To prevent injury, keep your back straight and lift with your legs, not your back. |
If you plan to return the old card cage assembly to the factory, repackage it in the shipping container you received with the replacement card cage assembly.
The new card cage assembly is shipped with a new air filter. You must replace the components you removed from the old card cage assembly in the new card cage assembly. Install the replacement card cage assembly according to the procedures in the section "Reinstalling the Card Cage Assembly" in the chapter "Installing a Cisco 12012."
| Caution An empty card cage assembly weighs 65 lb (29.5 kg). You need two people to safely lift the assembly. To prevent injury, keep your back straight and lift with your legs, not your back. |
The lower card cage slots are keyed and color coded; clock and scheduler cards are installed in the upper two slots (light blue labels), and the switch fabric cards are installed in the lower three slots (magenta labels).
Install all of the cards from the lower card cage according to the procedures in the section "Removing and Replacing a Clock and Scheduler Card or Switch Fabric Card."
Your system might have two system grounding cable lugs. The system grounding receptacles are located on the card cage assembly side flanges between the air filter tray and the power supply bays.
Perform the following steps to reattach the system grounding lugs to the card cage assembly:
Step 1 Position the system grounding lug over the card cage assembly system grounding receptacle.
Step 2 Secure the system grounding lug to the receptacle with two sets of screws, washers, and nuts.
Repeat Step 1 and Step 2 for a second system grounding connection.
If your system is configured with AC-input power supplies, install the power supplies according to the procedures in the section "Installing a New or Replacement AC-Input Power Supply" in this chapter.
If your system is configured with DC-input power supplies, install the power supplies according to the procedures in the section "Installing a New or Replacement DC-Input Power Supply" in this chapter.
| Caution To maintain agency compliance requirements and meet EMI emissions standards in a Cisco 12012 system with fewer than four AC-input power supplies or only one DC-input power supply installed, power supply blanks must be installed in all empty power supply bays. |
The GRP (Product Number GRP=) can be installed in upper card cage slots 0 through 11 (from left to right). It normally occupies slot 0.
Disconnect any interface cables attached to the GRP and remove the GRP according to the procedures in the section "Removing the Cards from the Upper Card Cage" in the chapter "Installing a Cisco 12012."
If you plan to return the old GRP to the factory, repackage it in the shipping container you received with the replacement GRP.
Install the replacement GRP according to the procedures in section "Replacing the Cards in the Upper Card Cage ," in the chapter "Installing a Cisco 12012."
Install the GRP interface cables according to the procedures in the section "Connecting Gigabit Route Processor Cables," in the chapter "Installing a Cisco 12012."
The Cisco 12012 supports online insertion and removal of FRUs, which means you can remove and replace an alarm card while the Cisco 12012 remains powered up.
You need the following tools and parts to perform this procedure:
Perform the following steps to remove an alarm card:
Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 Disconnect any cables attached to the alarm card connectors.
Step 3 Loosen the two captive screws at the top and bottom of the alarm card. (See Figure 7-11.)
Step 4 Using the screwdriver blade, gently pry at the top and bottom of the card to unseat the card from the backplane connector.
Step 5 Grasp the card carrier edge with one hand and place your other hand under the carrier to support it (see Figure 7-11.) Slide the alarm card out of the card slot and place it immediately on the antistatic mat.
If you plan to return the old alarm card to the factory, repackage it in the shipping container you received with the replacement alarm card.
Perform the following steps to install a replacement alarm card:
Step 2 Grasp the alarm card faceplate with one hand and place your other hand under the card carrier to support and guide it into the card cage slot labeled Alarm card.
Step 3 Carefully slide the alarm card carrier into the slot until it makes contact with the backplane connector, then stop. Avoid touching the card circuitry or any connectors.
Step 4 Carefully push on the top and bottom of the alarm card to seat it in the backplane connector.
Step 5 Tighten the two captive screws to secure the alarm card in the card slot.
Step 6 Connect any external devices to their respective connectors on the alarm card.
The Cisco 12012 supports a maximum of two clock and scheduler cards and three switch fabric cards in the lower card cage. You must power down the Cisco 12012 when you remove and replace a clock and scheduler card. The Cisco 12012 can remain powered up when you remove and replace a switch fabric card.
The lower card cage is located directly behind the air filter tray and an air deflector. When you access the lower card cage, you must first lower the air filter tray, then raise and secure the air deflector.
Remove a clock and scheduler card or a switch fabric card according to the procedures in the section "Removing the Cards from the Lower Card Cage" in the chapter "Installing a Cisco 12012."
Install a clock and scheduler card (Product Number GSR12-CSC=) or a switch fabric card (Product Number GSR12-SFC=) according to the procedures in the section "Replacing the Cards in the Lower Card Cage " in the chapter "Installing a Cisco 12012."
If you plan to return the old clock and scheduler card or switch fabric card to the factory, repackage it in the shipping container you received with the replacement card.
This section provides the procedure for increasing the amount of EDO DRAM by replacing up to two dual in-line memory modules (DIMMs), which you obtain from an approved vendor. The system DRAM resides on up to two DIMMs on the GRP. The DRAM DIMM sockets are U39 (bank 1) and U42 (bank 2). (See Figure 7-12.) The default DRAM configuration is 64 MB (one 64-MB DIMM in U39).
Before proceeding, ensure that you have the proper tools and ESD-prevention equipment available. To upgrade DRAM, you install DIMMs in one or two banks (U39 and U42). Table 7-1 lists the various configurations of DRAM DIMMs that are available, the number of DIMMs for each configuration, and the DRAM banks they occupy. Note which banks are used given the combinations of available DIMM sizes and the maximum DRAM you require.
| Total DRAM | Product Numbers | DRAM Sockets | Number of DIMMs |
|---|---|---|---|
64 MB1 | MEM-GRP/LC-64(=) | U39 (bank 1) | 1 64-MB DIMM |
128 MB | MEM-GRP/LC-64(=) | U39 (bank 1) and U42 (bank 2) | |
128 MB | MEM-GRP/LC-128(=) | U39 (bank 1) | 1 128-MB DIMM |
256 MB | MEM-GRP/LC-256(=) | U39 (bank 1) and U42 (bank 2) | |
| 164-MB is the standard (default) DRAM configuration for the GRP. |
| Caution To prevent system and memory problems when installing DRAM, the DRAM DIMMS must be 3.3V, 60-nanosecond (ns) devices. Do not attempt to install higher-voltage devices in the GRP's DIMM sockets. |
| Caution To prevent ESD damage, handle DIMMs by the card edges only. |
Use the following procedure to remove the existing DIMM(s):
Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 Turn OFF the system power supplies and disconnect any interface cables attached to the GRP.
Step 3 Remove the GRP according to the procedures in the section "Removing the Cards from the Upper Card Cage," in the chapter "Installing a Cisco 12012."
Step 4 Place the GRP on an antistatic mat or pad and position it so that the faceplate is toward you and the backplane connector is away from you.
Step 5 Locate the DRAM DIMMs on the GRP. The DIMMs occupy U39 (bank 1) and U42 (bank 2). (See Figure 7-12.)
Step 6 For the DIMM you want to remove, pull down the lever on the DIMM socket to release the DIMM from the socket. (See Figure 7-13.)
Step 7 When one end of the DIMM is released from the socket, grasp each end of the DIMM with your thumb and forefinger and pull the DIMM completely out of the socket. Handle the edges of the DIMM only; avoid touching components and the metal traces, or fingers, along the socket edge. (See Figure 7-14.)
Step 8 Place the DIMM in an antistatic bag to protect it from ESD damage.
Repeat Step 6 through Step 8 for the remaining DIMM, if required for your upgrade.
This completes the DIMM removal procedure. Proceed to the next section to install the new DIMMs.
This section describes the procedure for installing new DIMMs.
| Caution To prevent system and memory problems when installing DRAM, the GRP DRAM DIMMS must be 3.3V, 60-ns devices. Do not attempt to install higher-voltage devices in the DIMM sockets. |
| Caution DIMMs are sensitive components that can be shorted by mishandling; they are susceptible to ESD damage. Handle DIMMs by the edges only; avoid touching the DIMMs, pins, or traces (the metal fingers along the connector edge of the DIMM). |
Follow these steps to install the new DIMMs:
Step 1 Attach an antistatic wrist strap to yourself and to one of the two ESD connection sockets located on the front edges of the upper card cage or to bare metal on the frame.
Step 2 Place the GRP on an antistatic mat or pad.
Step 3 Position the GRP so that the faceplate is toward you and the backplane connector is away from you.
Step 4 Remove a new DIMM from the antistatic bag.
Step 5 Hold the DIMM component-side up, with the connector edge (the metal fingers) closest to you. Hold the ends of the DIMM between your thumb and forefinger. (See Figure 7-14.)
Step 6 Tilt the DIMM to approximately the same angle as the socket and insert the entire the connector edge into the socket. Note the two notches (keys) on the connector edge of the DIMM. These keys are intended to assure correct orientation of the DIMM in the socket.
| Caution When inserting DIMMs, use firm but not excessive pressure. If you damage a socket, you will have to return the GRP to the factory for repair. |
Step 7 Note the orientation of the socket key on the DIMM and the DIMM socket and gently push the DIMM into the socket until the lever is flush against the side of the DIMM socket, and the DIMM's backplane connector is fully inserted. (See Figure 7-15.) If necessary, rock the DIMM gently back and forth to seat it properly.
Step 8 When the DIMM is installed, check that the release lever is flush against the side of the DIMM socket. If it is not, the DIMM might not be seated properly. If the DIMM appears misaligned, carefully remove it according to the removal procedure, and reseat it in the socket. Push the DIMM firmly back into the socket until the release lever is flush against the side of the DIMM socket.
Repeat Step 4 through Step 8 for the remaining DIMM, as required; then proceed to Step 9.
Step 9 Replace the GRP in the upper card cage according to the procedure in the section "Reinstalling the Cards in the Upper Card Cage," in the chapter "Installing a Cisco 12012."
Attach any interface cables to the GRP according to the procedure in section "Connecting Gigabit Route Processor Cables," in the chapter "Installing a Cisco 12012."
Step 10 Restart the system for an installation check.
If the system fails to boot properly or if the console terminal displays a checksum or memory error after you have installed new DIMMs, check the following:
Posted: Mon Jun 5 16:50:40 PDT 2000
Copyright 1989 - 2000©Cisco Systems Inc.