Cisco Systems 3700 User Manual

Cisco 3700 Series Routers Hardware Installation Guide

Corporate Headquarters

Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 526-4100

Text Part Number: OL-2180-08

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following inform ation is for FCC compliance of Class A devices: 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.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your 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:

• Turn the television or radio antenna until the interference stops.

• Move the equipment to one side or the other of the television or radio.

• Move the equipment farther away from the television or radio.

• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.

IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES

CCSP, the Cisco Square Bridge logo, Follow Me Browsing, and StackWise are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Access Registrar, Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, Cisco, the Cisco Certified Internetwork E xpert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco S ystems logo, Cisco Unity, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, FormShare, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, LightStream, Linksys, MeetingPlace, MGX, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StrataView Plus, SwitchProbe, TeleRouter, The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.

All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0411R)

Book Title

Preface vii

Objectives vii

Audience viii

Organization viii

Conventions viii

Safety Warnings ix

Preface

This preface discusses the objectives, audience, organization, and conventions of this hardware installation guide, and points to related documents that have information beyond the scope of this document. It contains the following sections:

• Objectives, page vii

• Audience, page viii

• Organization, page viii

• Conventions, page viii

• Safety Warnings, page ix

Objectives

• Related Documentation, page xiv

• Obtaining Documentation, page xvi

• Documentation Feedback, page xvi

• Obtaining Technical Assistance, page xvii

• Obtaining Additional Publications and Information, page xviii

This guide explains how to install, maintain, and troubleshoot your router hardware. It also includes instructions for the router ROM monitor and configuration register.

Although this guide provides minimum software configuration information, it is not comprehensive. For detailed software configuration information, see the Software Configuration Guide for Cisco 2600

Series, Cisco 3600 Series, and Cisco 3700 Series Routers and the Cisco IOS configuration guide and

command reference publications. These publications are available online on Cisco.com. See the

“Obtaining Documentation” section on page xvi for more information.

This guide describes several router models that are similar in functionality but differ in the number of interfaces supported. Some information provided may not apply to your particular router model.

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Preface

Audience

This guide is designed for the person installing, configuring, and maintaining the router, who should be familiar with electronic circuitry and wiring practices and has experience as an electronic or electromechanical technician. It identifies certain procedures that should be performed only by trained and qualified personnel.

Organization

Table 1 lists the major sections of this hardware installation guide.

Table 1 Document Organization

Chapter Title Description

Chapter 1 Overview of Cisco 3700 Series Routers Describes the features and specifications of Cisco 3700 series

routers.

Chapter 2 Preparing to Install the Router Describes safety recommendations, site requirements, and

required tools and equipment, and includes installation checklist.

Chapter 3 Installing the Router Describes how to install the router, and shows how to connect to

the router console and auxiliary ports.

Appendix A Troubleshooting Describes how to isolate problems, read LEDs, and interpret error

and recovery messages.

Appendix B Using the ROM Monitor Describes the ROM monitor (bootstrap program), how to recover

an enable password, and how to recover software images.

Appendix C Configuration Register Describes the configuration register settings and procedures for

changing these settings.

Conventions

This guide uses the conventions listed in Table 2 to convey instructions and information.

Table 2 Document Conventions

Convention Description

boldface font Commands and keywords.

italic font Variables for which you supply values.

[ ] Optional keywords or arguments appear in square brackets.

{x | y | z} A choice of required keywords appears in braces separated by vertical bars. You must select one.

screen font

boldface screen

font

< > Nonprinting characters, for example passwords, appear in angle brackets in contexts where italics are

[ ] Default responses to system prompts appear in square brackets.

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Examples of information displayed on the screen.

Examples of information you must enter.

not available.

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Preface

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the

manual.

Timesaver Means the described action saves time. You can save time by performing the action described in the

paragraph.

Tip Means the following information will help you solve a problem. The tips information might not be

troubleshooting or even an action, but could be useful information, similar to a Timesaver.

Caution Means reader be careful. In this situation, you might do something that could result in equipment

damage or loss of data.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. To see translations of the warnings that appear in this publication, see the Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series

Regulatory Compliance and Safety Information document that accompanied your router.

Warning

Waarschuwing

IMPORTANT SAFETY INSTRUCTIONS

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. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

SAVE THESE INSTRUCTIONS

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

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 de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.

Statement 1071

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Cisco 3700 Series Routers Hardware Installation Guide

Safety Warnings

Preface

Varoitus

Attention

Warnung

TÄRKEITÄ TURVALLISUUSOHJEITA

Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.

SÄILYTÄ NÄMÄ OHJEET

IMPORTANTES INFORMATIONS DE SÉCURITÉ

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.

CONSERVEZ CES INFORMATIONS

WICHTIGE SICHERHEITSHINWEISE

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.

Avvertenza

Advarsel

BEWAHREN SIE DIESE HINWEISE GUT AUF.

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.

CONSERVARE QUESTE ISTRUZIONI

VIKTIGE SIKKERHETSINSTRUKSJONER

Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.

TA VARE PÅ DISSE INSTRUKSJONENE

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Safety Warnings

Aviso

¡Advertencia!

Varning!

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.

GUARDE ESTAS INSTRUÇÕES

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.

GUARDE ESTAS INSTRUCCIONES

VIKTIGA SÄKERHETSANVISNINGAR

Denna varningssignal 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 vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.

SPARA DESSA ANVISNINGAR

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Safety Warnings

Preface

Aviso

Advarsel

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.

GUARDE ESTAS INSTRUÇÕES

VIGTIGE SIKKERHEDSANVISNINGER

Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed.

GEM DISSE ANVISNINGER

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Safety Warnings

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Obtaining Documentation

Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

You can access international Cisco websites at this URL:

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

Preface

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

• Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from

the Ordering tool:

http://www.cisco.com/en/US/partner/ordering/index.shtml

• Nonregistered Cisco.com users can order documentation through a local account representative by

calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 1 800 553-NETS (6387).

Documentation Feedback

You can send comments about technical documentation to bug-doc@cisco.com.

You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:

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

We appreciate your comments.

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Preface

Obtaining Technical Assistance

For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.

Cisco Technical Support Website

The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, 365 days a year, at this URL:

http://www.cisco.com/techsupport

Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:

http://tools.cisco.com/RPF/register/register.do

Obtaining Technical Assistance

Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting

a web or phone request for service. You can access the CPI tool from the Cisco Technical Support Website by clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product

Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID

or model name; by tree view; or for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.

Submitting a Service Request

Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool provides recommended solutions. If your issue is not resolved using the recommended resources, your service request is assigned to a Cisco TAC engineer. The TAC Service Request Tool is located at this URL:

http://www.cisco.com/techsupport/servicerequest

For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.

To open a service request by telephone, use one of the following numbers:

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Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227) EMEA: +32 2 704 55 55 USA: 1 800 553-2447

For a complete list of Cisco TAC contacts, go to this URL:

http://www.cisco.com/techsupport/contacts

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Obtaining Additional Publications and Information

Definitions of Service Request Severity

To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.

Severity 1 (S1)—Your network is “down,” or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.

Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.

Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Obtaining Additional Publications and Information

Preface

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

• Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Visit

Cisco Marketplace, the company store, at this URL:

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

• The Cisco Product Catalog describes the networking products offered by Cisco Systems, as well as

ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://cisco.com/univercd/cc/td/doc/pcat/

• Cisco Press publishes a wide range of general networking, training and certification titles. Both new

and experienced users will benefit from these publications. For current Cisco Press titles and other information, go to Cisco Press at this URL:

http://www.ciscopress.com

• Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and

networking investments. Each quarter, Packet delivers coverage of the latest industry trends, technology breakthroughs, and Cisco products and solutions, as well as network deployment and troubleshooting tips, configuration examples, customer case studies, certification and training information, and links to scores of in-depth online resources. You can access Packet magazine at this URL:

http://www.cisco.com/packet

• iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies

learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions. You can access iQ Magazine at this URL:

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

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Obtaining Additional Publications and Information

• Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering

professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/ipj

• World-class networking training is available from Cisco. You can view current offerings at

this URL:

http://www.cisco.com/en/US/learning/index.html

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Preface

Cisco 3700 Series Routers Hardware Installation Guide

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CHAPTER

Overview of Cisco 3700 Series Routers

Cisco 3700 series routers are modular access routers with LAN and WAN connections that can be configured by means of interchangeable network modules and interface cards.

This chapter describes the features and specifications of the routers and includes the following sections:

• Hardware Features, page 1-1

• Modules, Interface Cards, and Memory, page 1-3

• Memory, page 1-4

• Interface Numbering, page 1-5

• Power Supply Options, page 1-9

• System Specifications, page 1-11

• Regulatory Compliance, page 1-12

Hardware Features

Cisco 3700 series includes the Cisco 3725 and the Cisco 3745 routers, which provide the following features:

• Cisco 3700 CompactFlash memory cards

• Advanced integration module (AIM) slots

• Support for double-wide network modules

• Two sockets for synchronized DRAM (SDRAM)

• User-configurable memory (shared memory or processor memory)

• Two Fast Ethernet ports

• High-speed console and auxiliary ports (up to 115.2 kbps)

Cisco 3725

Cisco 3725 routers include the following additional features:

• High-performance 240-MHz Reduced Instruction Set Computer (RISC) processor

• Up to 256 MB SDRAM

• Up to 128 MB CompactFlash memory

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Hardware Features

Chapter 1 Overview of Cisco 3700 Series Routers

• Two slots for network modules, one of which can accommodate a double-wide network module

• Three interface card slots

• Two Cisco 3700 CompactFlash slots (one external and one internal)

• Two AIM slots

• Installation in a 19- or 23-inch rack or on a desk

• Support for Cisco Redundant Power System

• 2-rack unit (RU) chassis height

Figure 1-1 shows the rear panel of the Cisco 3725 router.

Figure 1-1 Rear Panel of the Cisco 3725 Router

1 3

Cisco 3745

NM-HDV

BANK 4

BANK 3

P 2 M

F T

BANK 2

BANK 1

BANK 0

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I O

SEE MANUAL BEFORE INSTALLATION

DSU

56K

SEE MANUAL BEFORE INSTALLATION

DSU 56K

SEE MANUAL BEFORE INSTALLATION

1 Double-wide network module slot 6 CompactFlash memory card slot 2 Interface card slots 7 Fast Ethernet 0/0 port 3 Power supply 8 Fast Ethernet 0/1 port 4 Auxiliary port 9 Single-wide network module slot 5 Console port

Cisco 3745 routers include the following additional features:

• High-performance 350-MHz RISC processor

• Up to 256 MB SDRAM

62691

1-2

• Up to 128 MB CompactFlash memory

• Four slots for network modules that can accommodate up to two double-wide network modules

• Three interface card slots

• Two Cisco 3700 CompactFlash memory card slots (one external and one internal)

• Two AIM slots

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Chapter 1 Overview of Cisco 3700 Series Routers

• Installation in a 19- or 23-inch rack or on a desk

• Support for Cisco Redundant Power System

• 3-rack unit (RU) chassis height

Figure 1-2 shows the rear panel of the Cisco 3745 router.

Figure 1-2 Rear Panel of the Cisco 3745 Router

C O

A N

A L

E F

NM-HDV

Modules, Interface Cards, and Memory

L 0

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1 Interface card slots 6 Cisco 3700 CompactFlash memory card slot 2 Network modules 7 Auxiliary port 3 Power supply 8 Console port 4 Fast Ethernet 0/0 port 9 Power supply 5 Fast Ethernet 0/1 port 10 Network modules

Modules, Interface Cards, and Memory

• For information on installing network modules, see the following documents:

• Quick Start Guide: Network Modules for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700

Series Routers

• Cisco Network Modules Hardware Installation Guide

For information on installing WICs and VICs, see the following documents:

• Quick Start Guide: Interface Cards for Cisco 1600, 1700, 2600, 3600, and 3700 Series

• Cisco Interface Cards Hardware Installation Guide

For information on installing AIMs, see the following documents:

• AIM Installation Quick Start Guide: Cisco 2600, Cisco 3600, and Cisco 3700 Series

• Installing Advanced Integration Modules in Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700

Series Routers

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Memory

Chapter 1 Overview of Cisco 3700 Series Routers

For information on installing DRAM, SDRAM, NVRAM, and CompactFlash memory, see:

• Upgrading System Memory in Cisco 3700 Series Routers

• Installing Field-Replaceable Units in Cisco 3745 Routers

For information on installing CompactFlash memory cards, see:

• Installing and Formatting Cisco 2691, Cisco 3631, and Cisco 3700 CompactFlash Memory Cards

Cisco 3700 series routers support the following types of memory:

• SDRAM—Stores the running configuration and routing tables and is used for packet buffering by

the network interfaces. Cisco IOS software executes from SDRAM memory.

• NVRAM—Stores the system configuration file and virtual configuration register. For more

information, see Appendix C, “Configuration Register.” CompactFlash memory—Stores the operating system software image. You can increase CompactFlash memory by adding Cisco 3700 CompactFlash memory cards. See the Installing and Formatting Cisco 3631 and Cisco 3700

CompactFlash Memory Cards document.

• EPROM-based memory—Stores the ROM monitor, which allows you to boot an operating system

software image from internal or external CompactFlash memory.

Table 1-1 and Ta b le 1 -2 list processor and memory specifications for Cisco 3700 series routers.

Table 1-1 Cisco 3725 Router Processor and Memory Specifications

Description Specification

Processor 240-MHz PMC-Sierra RM7061A RISC processor

SDRAM 128–256 MB

NVRAM 56 KB

CompactFlash 32, 64, or 128 MB

Boot ROM 512 KB

Table 1-2 Cisco 3745 Router Processor and Memory Specifications

Description Specification

Processor 350-MHz PMC-Sierra RM7000A RISC processor

SDRAM 128–256 MB

NVRAM 152 KB

CompactFlash 32, 64, or 128 MB

Boot ROM 704 KB

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Chapter 1 Overview of Cisco 3700 Series Routers

Interface Numbering

This section describes numbering conventions for interfaces on Cisco 3725 and Cisco 3745 routers.

Cisco 3725 Interfaces

Each individual interface (port) on a Cisco 3725 router is identified by number, as described in the following sections.

WAN and LAN Interface Numbering

The Cisco 3725 router chassis contains the following WAN and LAN interface types:

• Two built-in Fast Ethernet LAN interfaces

• Three slots in which you can install WAN interface cards (WICs)

• One single-wide slot (slot 1) in which you can install one network module

• One double-wide slot (slot 2) in which you can install one single-wide or double-wide network

module

The numbering format is interface-type slot-number/interface-number. Two examples are:

Interface Numbering

• FastEthernet 0/0

• Serial 1/2

The slot numbers are as follows:

• 0 for all built-in interfaces

• 0 for all WIC interfaces

• 1 for interfaces in the single-wide network module slot

• 2 for interfaces in the double-wide network module slot

Interface (port) numbers begin at 0 for each interface type, and continue from right to left and (if necessary) from bottom to top.

Figure 1-3 shows an example of interface numbering on a Cisco 3725 router with these interfaces:

• A WIC in each WIC slot (containing interfaces Serial 0/0 and Serial 0/1 in physical slot W0,

interface Serial 0/2 in physical slot W1, and interface BRI 0/0 in physical slot W2)

• A 2-port T1 network module in slot 1 (containing the following ports: T1 1/0 and T1 1/1)

• A 36-port EtherSwitch network module in slot 2 (containing the following ports: Fast Ethernet 2/0

through 2/35, and Gigabit Ethernet 2/0 and 2/1)

• Two built-in Ethernet 10/100-Mbps interfaces—Fast Ethernet 0/0 and Fast Ethernet 0/1

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Chapter 1 Overview of Cisco 3700 Series Routers

Figure 1-3 WAN and LAN Interface Numbering

Gigabit Ethernet 2/1

Fast Ethernet 2/35

Fast Ethernet 2/17

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The slot number for all WIC interfaces is always 0. (The W0 and W1 slot designations are for physical slot identification only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each interface type, regardless of which physical slot the WICs are installed in. Some examples are as follows:

• If slot W0 is empty and slot W1 contains a 1-port serial WIC, the serial interface in the WIC is

numbered Serial 0/0.

• If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the serial interfaces

in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the serial interface in physical slot W1 is numbered Serial 0/2.

• If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the serial interfaces

in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the BRI interface in physical slot W1 is numbered BRI 0/0.

Voice Interface Numbering

Voice interfaces are numbered as follows:

chassis-slot/voice-module-slot/voice-interface

If a 4-channel voice network module is installed in chassis slot 1, the voice interfaces are:

• 1/0/0—Chassis slot 1/Voice module slot 0/Voice interface 0

• 1/0/1—Chassis slot 1/Voice module slot 0/Voice interface 1

• 1/1/0—Chassis slot 1/Voice module slot 1/Voice interface 0

• 1/1/1—Chassis slot 1/Voice module slot 1/Voice interface 1

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Chapter 1 Overview of Cisco 3700 Series Routers

Cisco 3745 Interfaces

Each individual interface (port) on a Cisco 3745 router is identified by number as described in the following sections.

WAN and LAN Interface Numbering

The Cisco 3745 router chassis contains the following WAN and LAN interface types:

• Two built-in FastEthernet LAN interfaces

• Three slots in which you can install WAN or voice interface cards

• Four network module slots

The numbering format is interface-type slot-number/interface-number. Two examples are:

• FastEthernet 0/0

• Serial 1/2

The slot numbers are as follows:

Interface Numbering

• 0 for all built-in interfaces

• 0 for all WIC interfaces

• 1 for the lower-right network module slot

• 2 for the lower-left network module slot

• 3 for the upper-right network module slot

• 4 for the upper-left network module slot

If double-wide network modules are installed, the network module slots are numbered as follows:

• 2 for the lower double-wide slot

• 4 for the upper double-wide slot

Interface (port) numbers begin at 0 for each interface type, and continue from right to left and from bottom to top.

Figure 1-4 shows the rear panel of the Cisco 3745 with:

• A WIC in each of the three WAN interface card slots

• A single-wide network module in each of the four network module slots

• Two AC power supplies

The slot number for all WIC interfaces is always 0. (The W0, W1, and W2 slot designations are for physical slot identification only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each interface type, regardless of which physical slot the WICs are installed in. Some examples are:

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If physical slot W0 is empty and physical slot W1 contains a 1-port serial WIC, the serial interface in the WIC is numbered Serial 0/0.

If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the serial interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the serial interface in physical slot W1 is numbered Serial 0/2.

If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the serial interfaces in physical slot W0 are numbered Serial 0/0 and Serial 0/1, and the BRI interface in physical slot W1 is numbered BRI 0/0.

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Interface Numbering

Figure 1-4 Cisco 3745 Rear Panel

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Voice Interface Numbering

Voice interfaces are numbered differently from the WAN interfaces described in the previous section. Voice interfaces are numbered as follows:

network-module-slot/voice-module-slot/voice-interface

If a 4-channel voice network module is installed in chassis slot 1, the voice interfaces are:

• 1/0/0—Network module slot 1/Voice module slot 0/Voice interface 0

• 1/0/1—Network module slot 1/Voice module slot 0/Voice interface 1

• 1/1/0—Network module slot 1/Voice module slot 1/Voice interface 0

• 1/1/1—Network module slot 1/Voice module slot 1/Voice interface 1

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Chapter 1 Overview of Cisco 3700 Series Routers

Power Supply Options

Table 1-3 lists the power supply options supported by Cisco 3700 series routers. Depending on the

configuration specified when you placed your order, your router may not support all of these options.

Table 1-3 Power Supply Options for Cisco 3700 Series Routers

Power Supply Option Cisco 3725 Cisco 3745

AC input power Yes Yes

DC input power Yes Yes

–48-V telephony power module to provide inline power to IP phones Yes Yes

Dual hot-swappable power supplies No Yes

Compatible with Cisco Redundant Power System Yes Yes

1. Because of increased power consumption in high-temperature environments, a fully loaded Cisco 3745 router requires both power supplies when ambient temperature exceeds 104°F (40°C). Cisco 3745 routers operating under these conditions do not support the online replacement of power supplies.

Power Supply Options

Internal –48 V Telephony Power Modules

Cisco 3700 series routers provide inline power to IP phones connected to the router through Ethernet switch network modules. This power is supplied by special –48 V modules that connect directly to the chassis power supplies in Cisco 3725 and Cisco 3745 routers. A single –48 V power module meets the power needs of up to 36 IP phones. A Cisco 3745 router with two –48 V power modules installed provides redundant power for up to 36 IP phones. Figure 1-5 and Figure 1-6 show the –48 -V power modules as they appear when installed in Cisco 3700 series routers.

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Power Supply Options

Chapter 1 Overview of Cisco 3700 Series Routers

Figure 1-5 Cisco 3725 Router with Optional –48 V Power Module Installed

72086

power module

48V

power module

Figure 1-6 Cisco 3745 Router with Optional –48 V Power Modules Installed

48V power modules

72085

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+ 84 hidden pages

Cisco Systems 3700 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

Preface

Objectives

Audience

Organization

Conventions

Safety Warnings

Related Documentation

Obtaining Documentation

Cisco.com

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco Technical Support Website

Submitting a Service Request

Obtaining Additional Publications and Information

Definitions of Service Request Severity

Overview of Cisco 3700 Series Routers

Hardware Features

Cisco 3725

Cisco 3745

Modules, Interface Cards, and Memory

Memory

Interface Numbering

Cisco 3725 Interfaces

WAN and LAN Interface Numbering

Voice Interface Numbering

Cisco 3745 Interfaces

WAN and LAN Interface Numbering

Voice Interface Numbering

Power Supply Options

Internal –48 V Telephony Power Modules