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Cisco 1700 Series Modular Access Routers

Installing and Upgrading the Boot ROM in Cisco 1700 Series Routers

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Table Of Contents

Installing and Upgrading the Boot ROM in Cisco 1700 Routers

Before You Begin

Tools and Equipment Required

Safety Warnings

Preventing Electrostatic Discharge Damage

Opening the Chassis

Desktop Cisco 1700 Series Routers

Rack-Mounted Cisco 1700 Series Routers

Replacing the Boot ROM

Closing the Chassis

Desktop Cisco 1700 Series Routers

Rack-Mounted Cisco 1700 Series Routers

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Installing and Upgrading the Boot ROM in Cisco 1700 Routers

This document describes how to install or upgrade the Boot ROM in your Cisco 1700 series routers. Table 1 describes the Cisco part to which this document applies.

Table 1 Cisco 1700 Router Boot ROM Upgrades

Cisco Part Number
Descriptions

Boot-1700=

Boot ROM chip for Cisco 1700 routers


This document contains the following sections:

•Before You Begin

•Opening the Chassis

•Replacing the Boot ROM

•Closing the Chassis

•Obtaining Documentation

•Obtaining Technical Assistance

Before You Begin

This section describes the tools required to install the Boot ROM and important safety information. Read this section before upgrading the Boot ROM in the Cisco 1700 series routers.

Tools and Equipment Required

The following items are required to upgrade the router Boot ROM:

•Number 1 Phillips screwdriver for desktop routers

•Flathead screwdriver for rackmount routers

•Plastic-leaded chip-carrier (PLCC) extraction tool

•Boot ROM chip

Safety Warnings

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.

Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages.

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected.

Warning Read the installation instructions before you connect the system to its power source.

Warning Ultimate disposal of this product should be handled according to all national laws and regulations.

Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals.

Warning Only trained and qualified personnel should be allowed to install or replace this equipment.

Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first.

Preventing Electrostatic Discharge Damage

Before installing a Boot ROM, read the electrostatic discharge (ESD) instructions in this section to prevent damage to the equipment. ESD is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.

Following are guidelines for preventing ESD damage:

•Before opening the chassis, turn the router power switch to off ( O ).

•Disconnect the power cable to the router.

•Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.

•Avoid contact between equipment and clothing. The wrist or ankle strap only protects the equipment from ESD voltages on the body; ESD voltages on clothing can still cause damage.

•Handle printed circuit cards by the edges only; avoid touching the components, traces, or any connector pins.

•Place a removed card component side up on an antistatic surface or in a static shielding bag.

•Do not remove the wrist or ankle strap until the installation is complete.

Caution To avoid damaging the equipment, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).

Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the router. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

Opening the Chassis

To upgrade the Cisco 1700 series routers Boot ROM, you must open the router chassis.

Desktop Cisco 1700 Series Routers

This procedure applies to the Cisco 1710, 1720, 1721, 1750, and 1751 routers.

Opening the chassis requires a number one Phillips screwdriver.

Follow these steps to open the chassis:

Step 1 Make sure the router is turned off and is disconnected from the power supply.

Step 2 Remove any installed WAN interface card (WIC) from the WIC  Ø slot in Cisco 1720, 1750 or 1751 routers. (In these routers, a card in the WIC 0 slot will cover the Boot ROM.)

Figure 1 Removing the Chassis Screws

Step 3 Turn the router upside down, and rest the top of the router on a flat surface.

Step 4 Use the Phillips screwdriver to remove the four screws that hold the top and bottom of the chassis together, as shown in Figure 1.

Step 5 Turn the router back to its original position (right-side up).

Step 6 Gently pull the top of the router (which is facing up toward you) up and away from the bottom of the router (which is resting on the flat surface).

Step 7 At this point, you might have to disconnect the fan inside the top of the router chassis from the motherboard. Do this by disconnecting the fan cable from the connector (labeled FAN) on the motherboard.

Step 8 Place the router bottom on an antistatic mat, and begin installing the Boot ROM.

Rack-Mounted Cisco 1700 Series Routers

This procedure applies to Cisco 1760 routers.

Opening the Cisco 1760 chassis requires a flathead screwdriver.

Follow these steps to open the chassis:

Step 1 Make sure that the router is turned off and is disconnected from the power supply.

Step 2 Use the flat-head screwdriver to remove the five screws that hold the top and bottom of the chassis together, as shown in Figure 2.

Figure 2 Removing the Cisco 1760 Chassis Screws

Step 3 Gently slide the top cover of the router toward you, as shown in Figure 3.

Figure 3 Removing the Top Cover of the Router

Step 4 Place the router bottom on an antistatic mat, and begin installing the Boot ROM.

Replacing the Boot ROM

Follow the steps in this section to replace the Boot ROM.

Step 1 Refer to the following 1700 router figures to locate the socket that holds the installed Boot ROM on the motherboard. The new Boot ROM chip will be installed in this socket.

Figure 4 Cisco 1710 Motherboard—Boot ROM Location

Figure 5 Cisco 1720 Motherboard—Boot ROM Location

Figure 6 Cisco 1721 Motherboard—Boot ROM Location

Figure 7 Cisco 1750 Motherboard—Boot ROM Location

Figure 8 Cisco 1751 Motherboard—Boot ROM Location

Figure 9 Cisco 1760 Motherboard—Boot ROM Location

Step 2 Using the PLCC extraction tool, gently remove the installed Boot ROM from the socket, as shown in Figure 10, and set it on a nonconductive surface.

Figure 10 Removing the Boot ROM

Step 3 Insert the new Boot ROM in the socket so that the flat corner on the beveled edge of the ROM chip fits into the flat corner of the ROM socket. (See Figure 11.)

Caution Make sure to install the Boot ROM with the printed label up. Installing the Boot ROM with the printed label down damages the Boot ROM.

Figure 11 Correct Boot ROM Position

Closing the Chassis

After installing the Boot ROM on the motherboard, follow these steps to close the chassis.

Desktop Cisco 1700 Series Routers

After installing the Boot ROM, follow these steps to close the chassis of a desktop router:

Step 1 If you disconnected the fan from the motherboard as described in the "Opening the Chassis" section, reconnect the fan cable to the connector labeled FAN on the motherboard.

Step 2 Locate the posts that protrude from the inside of the chassis cover and the corresponding openings on the chassis bottom.

Step 3 Line up the posts with the corresponding openings, as shown in Figure 12, and carefully slide the posts into the openings, taking caution not to damage the router motherboard with the posts.

Figure 12 Closing the Chassis

Step 4 Replace the screws that you removed when opening the chassis. (See Figure 1.)

Step 5 Reinstall any WAN interface card that you removed before opening the chassis.

Rack-Mounted Cisco 1700 Series Routers

After installing the Boot ROM, follow these steps to close the chassis of a rack-mounted Cisco 1760 router:

Step 1 Slide the top cover of the router back on the bottom of the chassis by pushing it in the opposite direction from that shown in Figure 3.

Step 2 Replace the screws that you removed when you opened the chassis as shown in Figure 2.

Obtaining Documentation

The following sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at the following URL:

http://www.cisco.com

Translated documentation is available at the following URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Ordering Documentation

Cisco documentation is available in the following ways:

•Registered Cisco Direct Customers can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/public/ordsum.html

•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

If you are reading Cisco product documentation on Cisco.com, you can submit technical comments electronically. Click Leave Feedback at the bottom of the Cisco Documentation home page. After you complete the form, print it out and fax it to Cisco at 408 527-0730.

You can e-mail your comments to bug-doc@cisco.com.

To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address:

Cisco Systems
Attn: Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you to

•Streamline business processes and improve productivity

•Resolve technical issues with online support

•Download and test software packages

•Order Cisco learning materials and merchandise

•Register for online skill assessment, training, and certification programs

You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Inquiries to Cisco TAC are categorized according to the urgency of the issue:

•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:

http://www.cisco.com/register/

If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:

http://www.cisco.com/tac/caseopen

If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.

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