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Product Number: BOOT-7100=
This document describes installation and removal instructions for the boot ROM in Cisco 7100 series routers.
This document contains the following sections:
Use this document in conjunction with the Cisco 7100 Series VPN Router Installation and Configuration Guide publication and the document Regulatory Compliance and Safety Information for Cisco 7100 Series VPN Routers.
Installation instructions for modular port adapters can be found in the individual document that ships with the port adapter. For example, if you ordered a PA-4E Ethernet port adapter, the note PA-4E Ethernet 10BaseT Port Adapter Installation and Configuration is shipped with the router.
Installation instructions for the Flash Disk can be found in the Using the Flash Disk document that shipped with the router.
 | Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. This equipment contains an energy hazard. Disconnect the system before servicing. |
You need the following tools and equipment:
For international agency compliance, safety, and statutory information for Cisco 7100 series routers, refer to the document Regulatory Compliance and Safety Information for Cisco 7100 Series VPN Routers that shipped with the router.
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
| Warning This unit might have more than one power supply connection. All connections need to be removed to deenergize the unit. |
Follow these guidelines when you work on equipment powered by electricity:
| Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. |
| Warning When installing the unit, the ground connection must always be made first and disconnected last. |
In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source, but still connected to telephone wiring or other network cabling:
| Warning
To reduce the risk of fire, use only No. 26 American Wire Gauge (AWG) or larger telecommunication line cord. |
Always follow ESD-prevention procedures when you remove and replace components. Ensure that the chassis is electrically connected to earth (ground). Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground unwanted ESD voltages. To guard against ESD damage and shocks, the wrist strap and cord must operate properly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.
 | Caution For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohms (Mohm). |
This section describes how to remove the router from the rack. To gain access to the boot ROM, you must power down the router and remove it from the rack.
To remove the router from the rack, complete the following steps:
Step 1 Shut down all interfaces. Power down the router and disconnect site power.
Step 2 Remove all interface cables from the rear panel of the router. Ensure that the cables are adequately marked to assist you when you reconnect the cables.
Step 3 Remove the screws that secure the router to the rack. Do one side at a time. Have a second person hold the router while you remove the screws.
This complete the step for removing the Cisco 7100 series routers from the rack.
Step 4 Place the router so that the front panel is facing you. If you place the router on a table, ensure that you have clear access to all sides.
This section describes how to remove the chassis cover from the router. To gain access to the boot ROM, you must open the router chassis.
To remove the chassis cover, complete the following steps:
Step 1 Power down the router and disconnect site power.
Step 2 If the router is mounted in a rack, you must remove it from the rack. (See the previous section "Removing the Router from the Rack.")
Step 3 Place the router so that the front panel is facing you. If you place the router on a table, ensure that you have clear access to all sides.
Step 4 Remove the four screws on the chassis cover. (See Figure 2.)
Step 5 Lift the chassis cover upward, and pull it away from the tabs on the rear of the chassis. (See Figure 3.)
This complete the steps for removing the chassis cover from Cisco 7100 series routers.
A PLCC-type boot ROM is located in socket U21 on Cisco 7100 series routers.
| Caution A PLCC-type boot ROM does not have pins that plug into the socket; instead, the contacts are on the sides of the boot ROM and along the inner sides of the socket. Therefore, you cannot use a small flat-blade screwdriver to remove a PLCC-type boot ROM. Forcing a small screwdriver or other tool between the boot ROM and the sides of the socket to pry out the boot ROM will damage the component, the socket, or both. |
To remove the boot ROM, complete the following steps:
Step 1 Attach an ESD-preventive strap between you and any unpainted router surface.
Step 2 Locate the boot ROM. (See Figure 4.)
Step 3 Carefully remove the new boot ROM from its packaging and verify that it is the correct version for this upgrade. Return the new boot ROM to its packaging.
Step 4 Note the orientation of the installed boot ROM so that you can install the new boot ROM with the same orientation.
Step 5 Place the angled tips of the PLCC-type IC extractor tool beneath the corners of the boot ROM. (See Figure 4.)
Step 6 Carefully squeeze the arms of the IC extractor tool until the boot ROM releases from the socket. Apply even pressure to both tips of the IC extractor tool. (See Figure 4.)
Step 7 Set the old boot ROM aside (preferably in an antistatic bag).
This completes the steps for removing the boot ROM from Cisco 7100 series routers.
To install a new Boot ROM on Cisco 7100 series routers, complete the following steps:
Step 1 Remove the new boot ROM from its packaging.
Step 2 Align the new boot ROM in socket U21 (See Figure 4.) Align the white dot near the boot ROM socket (indicating pin 1) with the indentation or dot on the boot ROM chip (pin 1).
Step 3 Gently press the boot ROM into the socket. The boot ROM is properly installed when the top of the boot ROM is flush with the top of the socket.
This completes the steps for installing a new Boot ROM on Cisco 7100 series routers.
This section describes replacing the chassis cover on the router. You must remove the chassis cover to gain access to the boot ROM.
To replace the chassis cover, complete the following steps:
Step 1 Place the chassis bottom so that the front panel is facing you.
Step 2 Hold the chassis cover over the chassis bottom, and align each of the cover tabs with the chassis tabs at the top rear of the chassis. (See Figure 5.)
Step 3 Lower the front of the top cover to close the chassis, and ensure the following:
When the chassis cover is properly assembled, no tabs are visible.
Step 4 Secure the chassis cover with four screws.
Step 5 Reinstall the chassis in the rack.
Step 6 Reinstall all interface cables.
Step 7 Connect the AC power cord to the site power and power up the router. The internal power supply fan should go on. For more information, refer to Chapter 3, "Installing Cisco 7100 Series Routers" in the Cisco 7100 Series VPN Routers Installation and Configuration Guide.
This completes the steps for replacing the chassis cover on Cisco 7100 series routers.
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Posted: Fri Nov 5 10:48:34 PST 1999
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