Cisco System 877-K9 User Manual

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Cisco 850 Series and Cisco 870 Series Access Routers Hardware Installation Guide

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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. (0501R)

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 information 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.

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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.

IMPLIED, INCLUDING, WITHOUT

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Preface 7

Objective 1-7

Audience 1-7

Organization 1-8

Conventions 1-8

Preface

This preface describes the objectives, audience, organization, and conventions of this guide, and describes related documents that have additional information. It contains the following sections:

• Objective, page 7

• Audience, page 7

• Organization, page 8

• Conventions, page 8

• Related Documentation, page 14

Objective

Audience

• Obtaining Documentation and Submitting a Service Request, page 14

This guide explains how to install, maintain, and troubleshoot your router hardware.

This guide describes the wireless and nonwireless Cisco 850 series and Cisco 870 series router models. Some information may not apply to your particular router model.

For warranty, service, and support information, see the “Cisco One-Year Limited Hardware Warranty Terms” section in the Cisco 850 Series and Cisco 870 Series Access Routers Cabling and Setup Quick Start Guide that was shipped with your router.

This guide is intended for service technicians who have little or no experience in installing routers and whose goal is to connect the router to the network as quickly as possible.

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Organization

This guide contains the following information:

Chapter 1, “Product Overview” Describes the router hardware and features.

Chapter 2, “Preinstallation Information” Provides preinstallation information, including

Chapter 3, “Router and PoE Module Mounting Procedures”

Chapter 4, “Router Cabling Procedures” Provides information about connecting the router to

Chapter 5, “Initial Configuration” Provides the procedures for initially configuring the

Chapter 6, “Troubleshooting” Describes problems that might develop and how to

Appendix A, “Specifications” Provides product specifications, port connector

Preface

safety warnings and guidelines, and information about the items shipped with your router.

Describes how to mount the router before connecting devices to the router.

various devices, mounting the router, and powering up the router and the connected devices.

router settings.

identify and solve them.

pinouts, and specifications for cables that you might need to supply.

Conventions

This section describes the conventions used in this guide.

Note Means reader take note. Notes contain helpful suggestions or references to additional information and

material.

Caution This symbol means reader be careful. In this situation, you might do something that could result in

equipment damage or loss of data.

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Preface

Conventions

Warning

Waarschuwing

Varoitus

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.

Statement 1071

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.

BEWAAR DEZE INSTRUCTIES

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.

Attention

Warnung

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.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

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Conventions

Preface

Avvertenza

Advarsel

Aviso

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

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.

¡Advertencia!

Varning!

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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Preface

Conventions

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Conventions

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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Preface

Conventions

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Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s revised Cisco

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS

technical documentation, at:

New in Cisco Product Documentation, which also lists all new and

Ve r si o n 2.0.

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Product Overview

This chapter provides an overview of the hardware features for the Cisco 851, Cisco 857, Cisco 871, Cisco

876, Cisco 877, and Cisco 878 routers. It contains the following sections:

• General Descriptions of the Router Models, page 1-1

• Feature Summary, page 1-7

• Hardware Features, page 1-9

• Regulatory Compliance, page 1-17

General Descriptions of the Router Models

This section provides a general description of each of the router models.

• Cisco 851 and Cisco 871 Ethernet-to-Ethernet Routers

• Cisco 857 and Cisco 877 ADSL-over-POTS Routers

• Cisco 876 ADSL-over-ISDN Router

CHA P TER

• Cisco 878 SHDSL Router

Cisco 851 and Cisco 871 Ethernet-to-Ethernet Routers

The Cisco 851 and Cisco 871 Ethernet-to-Ethernet routers can connect a corporate teleworker or a small office to an Internet service provider (ISP) over a broadband or Ethernet connection to a corporate LAN or to the Internet. The Cisco 851 and Cisco 871 routers are switch-capable routers that provide a 4-port Ethernet switch for the LAN. These routers are capable of bridging and multiprotocol routing between LAN and WAN ports.

Universal Serial Bus (USB) ports on the Cisco 871 router provide connection for USB devices such as security tokens, flash memory sticks, and printers.

The front panels of the Cisco 851 and Cisco 871 routers are identical. (See Figure 1-1.) Figure 1-2 shows the back panel of the Cisco 851 router, and Figure 1-3 shows the back panel of the Cisco 871 router.

The Cisco 851 wireless model supports the use of a single 2.4-GHz antenna (see Figure 1-2), and the Cisco 871 wireless model supports the use of two 2.4-GHz antennas (see Figure 1-3).

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General Descriptions of the Router Models

OK LNK PPP VPN OK DATA

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Figure 1-1 Cisco 851 and Cisco 871 Router Front Panel

Figure 1-2 Cisco 851 Router Back Panel

Chapter 1 Product Overview

1-2

Figure 1-3 Cisco 871 Router Back Panel with Antennas

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Chapter 1 Product Overview

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Router Ports on the Cisco 851 and Cisco 871 Back Panel

The Cisco 851 and Cisco 871 routers have the following ports on the back panel:

• Four 10/100BASE-T RJ-45 Fast Ethernet LAN ports with a built-in switch

• One 10/100BASE-T RJ-45 WAN Fast Ethernet port

• One RJ-45 console port

• Two USB ports (on the Cisco 871 router only)

USB Port Power Allocation on the Cisco 871 Router

The power available for each of the two USB ports is 500 mA. Power is dynamically allocated to each port as needed, up to 500 mA.

Cisco 857 and Cisco 877 ADSL-over-POTS Routers

The Cisco 857 and Cisco 877 routers are asymmetric digital subscriber line (ADSL)-over-plain old telephone service (POTS) routing devices. The routers have an integrated 4-port Ethernet switch for the LAN and an ADSL physical interface for the WAN, allowing the routers to connect a corporate telecommuter or small office to corporate LANs and the Internet.

The front panels of the Cisco 857 and Cisco 877 routers are identical. (See Figure 1-4.) The back panels of these two routers are similar except for their model numbers, which differ. Figure 1-5 shows the back panel of a Cisco 857 router, and Figure 1-6 shows the back panel of a Cisco 877 router.

General Descriptions of the Router Models

Figure 1-4 Cisco 857 and Cisco 877 Router Front Panel

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General Descriptions of the Router Models

ADSLoPOTS

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CONSOLE

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Figure 1-5 Cisco 857 Router Back Panel, with Antenna Installed

Chapter 1 Product Overview

Figure 1-6 Cisco 877 Router Back Panel, with Antennas Installed

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Chapter 1 Product Overview

OK CD PPP VPN OK DATA

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Router Ports on the Cisco 857 and Cisco 877 Back Panel

The Cisco 857 and Cisco 877 routers have the following ports on the back panel:

• Four 10/100BASE-T RJ-45 Fast Ethernet LAN ports with a built-in switch

• One ADSL-over-POTS port

• One RJ-45 console port

Cisco 876 ADSL-over-ISDN Router

The Cisco 876 router is an asymmetric digital subscriber line (ADSL)—over—ISDN routing device. The router has an integrated 4-port Ethernet switch for the LAN and an ADSL physical interface for the WAN, and ISDN BRI WAN connectivity. This ISDN BRI interface can be used for normal WAN connections or can be configured as a backup connection for the ADSL WAN interface. These features allow the routers to connect a corporate telecommuter or a small office to a central office or an Internet service provider (ISP) over an ADSL interface.

Figure 1-7 shows the front panel of the Cisco 876 router, and Figure 1-8 shows the back panel.

General Descriptions of the Router Models

Figure 1-7 Cisco 876 Router Front Panel

Figure 1-8 Cisco 876 Router Back Panel, with Antennas Installed

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ISDN

TXD

CISCO 800 SERIES

ETHERNET LAN

0123

LNK

–––––

Router Ports on the Cisco 876 Back Panel

The Cisco 876 router has the following ports on the back panel:

• Four 10/100BASE-T RJ-45 Fast Ethernet LAN ports with a built-in switch

• One 10/100BASE-T RJ-45 WAN Fast Ethernet port

• One ISDN S/T port

• One ADSL-over-ISDN port

• One RJ-45 console port

Cisco 878 SHDSL Router

The Cisco 878 router can connect a corporate telecommuter or small office to an Internet service provider (ISP) over multirate symmetrical high-data-rate digital subscriber lines (G.SHDSLs) to a corporate LAN and to the Internet.

The router has an integrated 4-port Ethernet switch for the LAN, a G.SHDSL physical interface for the WAN, and an ISDN BRI interface. The ISDN BRI S/T port can be used for remote management. The router is capable of bridging and multiprotocol routing between LAN and WAN ports.

Chapter 1 Product Overview

Figure 1-9 shows the front panel of the Cisco 878 router, and Figure 1-10 shows the back panel.

Figure 1-9 Cisco 878 Router Front Panel

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Chapter 1 Product Overview

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CONSOLE

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Figure 1-10 Cisco 878 Router Back Panel with Antennas

Feature Summary

Router Ports on the Cisco 878 Back Panel

The Cisco 878 router has the following ports on the back panel:

• Four 10/100BASE-T RJ-45 Fast Ethernet LAN ports with a built-in switch

• One ISDN S/T port

• One G.SHDSL port

• One RJ-45 console port

Feature Summary

Table 1-1 summarizes the features of these routers.

Ta b l e 1-1 Hardware Feature Summary

Feature Description

10BASE-T/100BASE-T built-in switch ports

Fast Ethernet WAN port Cisco 851 and Cisco 871 routers only. Provides connection to 10/100BASE-T. Can

ADSL-over-POTS port Cisco 857 and Cisco 877 routers only. Provides connection to an ADSL network.

ISDN S/T port Cisco 876 and Cisco 878 routers only. Provides remote management functions

Provides connection to 10/100BASE-T (10/100-Mbps) Ethernet networks. Compatible with 10/100-Mbps devices.

be connected to other network devices, such as cable modem, ADSL, and router.

Does not support the autoswitch function.

when the main ADSL or SHDSL link goes down by connecting to the ISDN service provider. Can be used for dial backup on Cisco 876 routers only.

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Chapter 1 Product Overview

Feature Summary

Table 1-1 Hardware Feature Summary (continued)

Feature Description

ADSL-over-ISDN port Cisco 876 router only. Provides connection to an ADSL-over-ISDN network. Does

not support the autoswitch function.

G.SHDSL port Cisco 878 router only. Provides 2-wire or 4-wire connection to a G.SHDSL

network.

Console port Provides a connection to the terminal or PC for software configuration or

troubleshooting using the command-line interface (CLI). The console port may be configured as a virtual auxiliary port (using the CLI) for dial backup and remote management.

Flash memory Cisco 850 series routers:

20 MB of flash memory (default and maximum)

Cisco 870 series routers: 20 MB of flash memory (default) 28 MB of flash memory for routers ordered with a Cisco IOS Advanced IP Services image or Enterprise Services image. Expandable by 8, 16, or 32 MB, up to a maximum of 52 MB.

Synchronous dynamic RAM (SDRAM) Cisco 850 series routers: 64 MB of SDRAM on board.

Cisco 870 series routers: 128 MB of SDRAM on board.

Expandable by 64 or 128 MB, up to a maximum of 256 MB.

Router Reset button Resets the router configuration to the factory default.

Dying gasp Detects whether the router is about to lose power, and sends a signal to warn the

digital subscriber line access multiplexer (DSLAM) about the impending line drop.

Wall-mount feature Brackets for mounting the router on a wall or vertical surface.

USB ports Cisco 871 router only. Supports USB-compatible devices such as security tokens

and flash memory sticks.

IPSec hardware accelerator The security processor implements symmetric key encryption, public key

encryption, authentication, and data compression in hardware.

Integrated 802.11b/g radio module (Optional) Provides connectivity to a wireless LAN using IEEE 802.11b/g

standards. Enables the router to act as an access point (AP) in infrastructure mode.

External power-over-Ethernet (PoE) module

(Optional) Provides inline power for powered devices (such as PCs and phones) that are connected to the router.

Kensington security slot Allows the router to be secured to a desktop or other surface by using Kensington

lockdown equipment.

Security features Provides support for virtual private networks (VPNs), Cisco IOS Firewall, and

IPSec. For information about software security features, see the Cisco

and Cisco

870 Series Access Routers Software Configuration Guide.

Autosensing function Eliminates the need for a crossover cable and allows the router to detect

medium-dependent interface in normal mode (MDI) or medium-dependent interface in crossover mode (MDIX) in any other PC or hub with a straight-through cable or a crossover cable. The router is capable of bridging and multiprotocol routing between the LAN and WAN ports.

850 Series

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Hardware Features

This section provides an overview of the hardware features of Cisco 850 series and Cisco 870 series routers and includes the following topics:

• Serial Number Location

• LED Indicators on the Routers

• Integrated 802.11b/g Radio Module (Wireless Models Only)

• Supported Cisco Radio Antennas (Wireless Models Only)

• External Power-over-Ethernet Module (Optional)

• Router Memory

• Router Hardware Security

Serial Number Location

The serial number label for the router is located on the rear of the chassis, at the left edge (see

Figure 1-11).

Hardware Features

Figure 1-11 Serial Number Location

LED Indicators on the Routers

The router LEDs that indicate status or activity on the router are located on the front panel of the routers.

Table 1-2 lists and describes the LEDs.

Ta b l e 1-2 LED Indicators on the Routers

LED Color Description Router Model

OK Green On when DC power is being supplied to the router. The light blinks

if an error occurs during bootup.

WA N LN K Green On if the WAN Ethernet carrier detects status and connects to the

digital subscriber line access multiplexer (DSLAM).

WA N RX D Green Blinks when WAN DSL or WAN Internet receives data. Cisco 851,

All Cisco 850 series and Cisco 870 series

Cisco 851, Cisco 871

Cisco 871

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Table 1-2 LED Indicators on the Routers (continued)

LED Color Description Router Model

WA N TX D Green Blinks when WAN DSL or WAN Internet transmits data. Off when

no data is being uploaded.

ADSL CD Green On if the ADSL carrier detects status and connects to the DSLAM. Cisco 857,

ADSL RXD Green Blinks when the ADSL interface receives data. Off when there is no

data.

ADSL TXD Green Blinks when the ADSL interface transmits data. Off when no data

is being uploaded.

G.SHDSL CD Green On if the SHDSL carrier detects status and connects to the DSLAM. Cisco 878

G.SHDSL RXD Green Blinks when the SHDSL interface receives data. Off when there is

no data.

G.SHDSL TXD Green Blinks when the SHDSL interface transmits data. Off when no data

is being uploaded.

ISDN LNK Green On when the ISDN D channel connects. Cisco 876,

ISDN B1 Green On when the ISDN B1 channel connects. Blinks when the B1

channel receives or sends data, or when data passes through ISDN channel 1.

ISDN B2 Green On when the ISDN B2 channel connects. Blinks when the B2

channel receives or sends data, or when data passes through ISDN channel 2.

PPP Green PPP-over-Ethernet (PPPoE) or PPP-over-ATM (PPPoA) client

status. On if at least one PPPoE or PPPoA client session is running. Off if neither PPPoE nor PPPoA is running.

VPN Green VPN tunnel status. On when at least one crypto (IPSec) session is

running. Off when no crypto session is running.

WLAN OK Green Shows whether the wireless link status is operational. Blinks if no

client is associated. Solid green if at least one client is associated.

WLAN DATA Green Wireless LAN link traffic. Blinks if there is traffic on the wireless

LAN. Off if there is no traffic.

Cisco 851, Cisco 871

Cisco 876, Cisco 877

Cisco 857, Cisco 876, Cisco 877

Cisco 878

Cisco 876, Cisco 878

All Cisco 850 series and Cisco 870 series

All Cisco 850 series and Cisco 870 series wireless models

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Hardware Features

Table 1-2 LED Indicators on the Routers (continued)

LED Color Description Router Model

ETHERNET LAN 0 Green On when a device connects to the Ethernet LAN 0 port. Blinks when

the Ethernet LAN 0 port receives or sends data, or when data passes through the port.

ETHERNET LAN 1 Green On when a device connects to the Ethernet LAN 1 port. Blinks when

the Ethernet LAN 1 port receives or sends data, or when data passes through the port.

ETHERNET LAN 2 Green On when a device connects to the Ethernet LAN 2 port. Blinks when

the Ethernet LAN 2 port receives or sends data, or when data passes through the port.

ETHERNET LAN 3 Green On when a device connects to the Ethernet LAN 3 port. Blinks when

the Ethernet LAN 3 port receives or sends data, or when data passes through the port.

All Cisco 850 series and Cisco 870 series

Integrated 802.11b/g Radio Module (Wireless Models Only)

The Cisco 850 series and Cisco 870 series wireless routers have an integrated IEEE 802.11b/g radio module that operates as a wireless access point in infrastructure mode. The wireless routers have two

reverse-polarity threaded Neill-Concelman (RP-TNC) connectors on the back panel. The dipole swivel antennas that were shipped with the router connect to the RP-TNC connectors to operate the 802.11b/g radio module.

The wireless operations can be configured by using the Cisco Router and Security Device Manager (SDM) web-based application, or by using the Cisco IOS command-line interface (CLI). See the

Cisco

Router and Security Device Manager (SDM) Quick Start Guide or the Cisco Access Router

Wireless Configuration Guide for more information.

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Hardware Features

Supported Cisco Radio Antennas (Wireless Models Only)

Table 1-3 lists the Cisco antennas that are supported on the Cisco 850 series and Cisco 870 series

wireless routers.

Ta b l e 1-3 Cisco Antennas Supported on the Cisco 850 Series and Cisco 870 Series Wireless Routers

Cisco Part Number Antenna Type Maximum Gain Description

23.7786.51 Omnidirectional 2.2 dBi This is the default antenna. Swivel-mount dipole antenna operating in the 2.4- to 2.5-GHz band. This antenna is designed for use with Cisco wireless products utilizing an RP-TNC connector. For more information, see the

Dipole Antenna (23.7786.51) document.

AIR-ANT4941 Omnidirectional 2.2 dBi Swivel-mount dipole antenna operating in the 2.4-

to 2.5-GHz band. This antenna is designed for use with Cisco wireless products utilizing an RP-TNC connector. For more information, see the

Cisco Aironet 2.4 Ghz Articulated Dipole Antenna (AIR-ANT4941) document.

AIR-ANT1728 Omnidirectional 5.2 dBi Ceiling-mount antenna operating in the 2.4- to

2.5-GHz band. This antenna has a clip that allows it to be mounted to a drop-ceiling cross member. For more information, see the

Gain Omnidirectional Ceiling Mount Antenna (AIR-ANT1728) document.

Note This antenna is not supported in Japan.

AIR-ANT3549 Patch 9 dBi Wall-mount antenna operating in the 2.4- to

2.5-GHz band.

Note This antenna is not supported in the

United

AIR-ANT5959 Diversity

omnidirectional

2.35 dBi Ceiling-mount antenna operating in the 2.4- to

2.5-GHz band. This antenna has a clip that allows it to be mounted to a drop-ceiling cross member. For more information, see the

Diversity Omnidirectional Ceiling Mount Antenna (AIR-ANT5959) document.

Cisco 2.4-GHz Swivel-Mount

Cisco Aironet High

States and Canada.

Cisco Aironet 2 dBi

External Power-over-Ethernet Module (Optional)

The optional external power-over-Ethernet (PoE) module is a standalone device that connects to the Ethernet ports on the router on one side (To ROUTER) and to powered devices (such as PCs, laptops, and IP phones) on the other side (To LAN). The PoE module has an independent power source that can provide inline power to devices connected to each of the four Ethernet ports, so that these devices do not need separate power sources.

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121040

48VDC

TO ROUTER

3210

121039

TO LAN

3210

PWR

Caution To ensure proper PoE module operation, do not connect the PoE module power supply to the PoE module

before you connect the PoE module to the router. Do not connect ISDN devices to the Ethernet ports on the PoE module; doing so may damage the hardware.

Figure 1-12 Power-over-Ethernet Module Front Panel

1 Power adapter input jack 2 Cable numbers associated with the corresponding Ethernet

Hardware Features

ports on the back panel. The integrated cable below the cable number label, consisting of four RJ-45 connectors organized by a plastic clip, is not shown in this illustration.

Figure 1-13 Power-over-Ethernet Module Back Panel

1 LED indicators and Ethernet ports for

2 Power indicator

connecting powered devices

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Hardware Features

122351

12 V

T / P

Cisco 871W

To LAN

3210

PWR

SN: XXXNNNNXXXX

Figure 1-14 Installing the PoE Module

Chapter 1 Product Overview

1 Cisco 870 series router 5 Router power adapter 2 Ethernet cables on the PoE module (four

6 PoE power plug

RJ-45 connectors in series)

3 PoE module 7 Router power plug 4 PoE power adapter

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Chapter 1 Product Overview

142607

+5,+12 VDC

LEFT

HT / PR

LAN

FE0

FE1

FE2

Cisco 871W

RESET

FE4

SN: XXXNNNNXXXX

To LAN

3210

PWR

Figure 1-15 Connecting the PoE Module to the Router

Hardware Features

1 Cisco 870 series router 3 Four RJ-45 Ethernet plugs, in series, from the

PoE module (plug these into the Ethernet ports on the router)

2 RJ-45 Ethernet ports on the router 4 PoE module

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Hardware Features

142608

+5,+12 VDC

LEFT

/ P

Cisco 871W

RESET

SN: XXXNNNNXXXX

Figure 1-16 PoE Module Connected to the Router

Chapter 1 Product Overview

LED Indicators on the PoE Module

Ta b l e 1-4 LED Indicators for the PoE Module

LED Color and Behavior Description

POE ports 0, 1, 2, 3 None No powered device detected

Solid amber Power administratively down

Solid green Power provided to the device

Blinking amber Fault detected in power delivery

Blinking green Power denied to the device

Router Memory

Cisco 850 series and Cisco 870 series routers support the following types of memory:

• Flash Memory

• SDRAM

Flash Memory

Flash memory stores the image of the ROMMON boot code, the Cisco IOS software, and the router configuration file. The router provides two onboard StrataFlash devices, one with 16 MB and the other with 4 MB of memory, for a total of 20 MB of onboard flash memory.

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• For Cisco 850 series routers, the default and maximum flash memory is 20 MB. This is not

upgradable.

• For Cisco 870 series routers, an expansion slot allows for an additional 8 MB, 16 MB, or 32 MB of

memory. The maximum flash memory is 52 MB. The default flash memory depends on which Cisco

IOS image is ordered with the router.

–

By default, the router ships with 4 MB in the expansion slot, for a total of 24 MB of flash memory.

–

If ordered with a Cisco IOS Advanced IP Services image or Enterprise Services image, the router ships by default with 8 MB of memory in the expansion slot, for a total of 28 MB of flash

memory.

SDRAM

SDRAM stores the Cisco IOS software and provides memory for data created during packet processing. The router provides 128 MB of onboard SDRAM, with an expansion slot that allows an additional 64

MB or 128 MB, up to a maximum of 256 MB of SDRAM.

Router Hardware Security

Regulatory Compliance

The Cisco 850 series and Cisco 870 series routers have a Kensington security slot on the back panel. To secure the router to a desktop or other surface, use the Kensington lockdown equipment.

Regulatory Compliance

For compliance and safety information, see the Regulatory Compliance and Safety Information for Cisco

800 Series and SOHO Series Routers document that was shipped with the router.

For wireless models, also see the Declarations of Conformity and Regulatory Information for Cisco Access Products with 802.11a/b/g and 802.11b/g Radios document that was shipped with the router.

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Chapter 1 Product Overview

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Preinstallation Information

This chapter provides information about safety, unpacking the router, and preparing for installation for Cisco

851, Cisco 857, Cisco 871, Cisco 876, Cisco 877, and Cisco 878 routers. It contains the following

sections:

• Safety Warnings and Guidelines, page 2-1

• Preventing Damage to the Router, page 2-4

• Unpacking the Box, page 2-4

• Preparing for Installation, page 2-5

• What to Do Next, page 2-6

Safety Warnings and Guidelines

CHA P TER

Warning

This section provides the safety warnings and guidelines for working with wireless and nonwireless routers that are applicable to the Cisco

Before installing the router and the optional Power-over-Ethernet (PoE) module, read the following warnings:

Read the installation instructions before connecting the system to the power source.

Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security.

No user-serviceable parts inside. Do not open.

Installation of the equipment must comply with local and national electrical codes.

850 series and Cisco 870 series routers.

Statement 1004

Statement 1072

Statement 1073

Statement 1074

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Safety Warnings and Guidelines

Chapter 2 Preinstallation Information

Warning

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 120 VAC, 15A U.S. (240 VAC, 10A international)

Statement 1005

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables.

Statement 1021

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

Statement 1001

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

Statement 1040

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.

Statement 1023

Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units.

Statement 12

Warning

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

Statement 94

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

Warning

cause serious burns or weld the metal object to the terminals.

This equipment is not designed for making emergency telephony calls when the power fails.

Statement 43

Alternative arrangements should be made for access to emergency services. Access to emergency services can be affected by any call-barring function of this equipment.

Caution Inline power circuits provide current through the communication cable. Use the cable provided by Cisco

Statement 199

or a communication cable with a minimum of 24 AWG.

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Chapter 2 Preinstallation Information

Additional Warnings for Wireless Routers

Safety Warnings and Guidelines

Warning

In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons.

Do not operate your wireless network device near unshielded blasting

environment unless the device has been modified to be especially qualified for such use.

Statement 245B

General Safety Guidelines for Wireless Routers

The following are guidelines for the wireless router models:

• Do not touch or move antenna(s) while the unit is transmitting or receiving.

• Do not hold any component containing a radio so that the antenna is very close to or touching any

exposed parts of the body, especially the face or eyes, while transmitting.

• The use of wireless devices in hazardous locations is limited to the constraints posed by the local

codes, the national codes, and the safety directors of such environments.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) is a transfer of electrostatic charge between bodies of different electrostatic potentials, such as an operator and a piece of electrical equipment. It occurs when electronic components are improperly handled, and it can damage equipment and impair electrical circuitry. Electrostatic discharge is more likely to occur in the presence of synthetic fibers and dry atmosphere.

Always use the following ESD-prevention procedures when removing and replacing components:

Statement 332

caps or in an explosive

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Step 1 Wear an ESD-preventive wrist strap that you provide, ensuring that it makes good skin contact.

Caution To properly guard against ESD damage and shocks, the wrist strap and cord must operate effectively.

Always follow the warnings and guidelines in this section.

Step 2 Do not touch any exposed contact pins or connector shells of interface ports that do not have a cable

attached.

If cables are connected at one end only, do not touch the exposed pins at the unconnected end of the cable. This device is intended for use in residential and commercial environments only.

Caution Periodically check the resistance value of the antistatic strap, which should be between 1 and

10 megohms (Mohm).

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Preventing Damage to the Router

Follow these guidelines when connecting devices to your router:

• Connect the color-coded cables supplied by Cisco Systems to the color-coded ports on the back

panel.

• If you must supply your own cable, see Appendix A, “Specifications,” for cabling specifications. If

this appendix does not provide specifications for a particular cable, we strongly recommend ordering the cable from Cisco

Systems.

Unpacking the Box

Table 2-1 lists the quantity of items that are shipped with each router model in the Cisco 850 series and

the Cisco 870 series routers. Figure 2-1 depicts the items.

Verify that you have received all the items. If any is missing or damaged, contact your customer service representative.

Chapter 2 Preinstallation Information

Ta b l e 2-1 Items Shipped with Cisco 850 Series and Cisco 870 Series Routers

Item

Cisco 851 and Cisco

871 Routers

Cisco 857 and Cisco

877 Routers Cisco 876 Router Cisco 878 Router

Ethernet cable(s) 2 1 1 1

DSL1 cable

ISDN4 S/T cable

Not applicable 1

Not applicable Not applicable Optional Optional

Console cable 1 1 1 1

Console-auxiliary5 cable

Optional Optional Optional Optional

Power adapter 1 1 1 1

Power cord

Cisco documentation

Cisco Router and Security Device

1 1 1 1

Manager (SDM) software CD

Swivel-mount dipole antenna (wireless router models only)

1. DSL = digital subscriber line. Used for an asynchronous digital subscriber line (ADSL) or multirate symmetrical high-data-rate digital subscriber line (G.SHDSL).

2. An RJ-11-to-RJ-11 straight-through cable is shipped, unless an RJ-11-to-RJ-11 crossover cable is specified.

3. An RJ-11-to-RJ-11 straight-through cable is shipped, unless an RJ-11-to-RJ-11 crossover cable or an RJ-11-to-RJ-45 cable is specified.

4. ISDN = Integrated Services Digital Network.

5. Console-auxiliary cable is used to connect the router console port to an async modem for dial backup or remote management.

6. Power cords are ordered as applicable to country or geographic region.

7. Includes the Regulatory Compliance and Safety Information for Cisco 800 Series and SOHO Series Routers document and the Cisco 850 Series and

Cisco 870 Series Access Routers Cabling and Setup Quick Start Guide. Also includes the Declarations of Conformity and Regulatory Information for Cisco Access Products with 802.11a/b/g and 802.11b/g Radios document for wireless models.

Cisco 851:

antenna

Cisco 871: 2

antennas

Cisco 857:

antenna

Cisco 877: 2

antennas

2 2

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Chapter 2 Preinstallation Information

Figure 2-1 Items Included with the Cisco 850 Series and Cisco 870 Series Routers

Preparing for Installation

1 Yellow Ethernet cable 5 Black power cord for adapter 2 Lavender DSL cable (optional) 6 Product documentation 3 Light blue console cable 7 Cisco SDM software CD 4 Router power adapter 8 Swivel-mount dipole antenna (wireless router

Preparing for Installation

Before installing the router and connecting devices to the router, perform these tasks:

Step 1 Obtain a broadband or Ethernet connection from your service provider. Step 2 Remove the cables and product documentation from the plastic bag. Remove the router power adapter

and the black power cord from the accessory kit.

Step 3 If you ordered a wireless router, remove the antennas from the box. Step 4 If you ordered a power-over-Ethernet (PoE) module, remove the PoE, its power adapter, and its power

cord from the box.

Step 5 Gather the Ethernet devices to be connected to the router: hub, servers, and workstations or PCs. Make

sure that there is a network interface card (NIC) in each device for connection to Ethernet ports.

Step 6 If you plan to configure the software using Cisco IOS commands using the console port, provide an

ASCII terminal or a PC that is running terminal emulation software to connect to the console port.

Step 7 If you plan to connect a modem, provide the modem and modem cable.

models only)

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Step 8 If you plan to use the ISDN S/T port, provide an NT1 device and an ISDN S/T cable.

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What to Do Next

Step 9 If you plan to use the cable-lock feature, provide a Kensington or equivalent locking cable. Step 10 Read the safety warnings (the “Safety Warnings and Guidelines” section) and information about

preventing damage to the router (the “Preventing Damage to the Router” section).

What to Do Next

Mount the router properly by following the instructions in Chapter 3, “Router and PoE Module

Mounting Procedures.”

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Router and PoE Module Mounting Procedures

This chapter describes the procedures for mounting the following routers and the power-over-Ethernet (PoE) module:

• Cisco 851 and Cisco 871 routers

• Cisco 857 and Cisco 877 routers

• Cisco 876 router

• Cisco 878 router

This chapter contains the following sections:

• Connecting Antennas to the Wireless Router, page 3-1

• Mounting on a Table, page 3-1

• Mounting on a Wall, page 3-2

• What to Do Next, page 3-6

Connecting Antennas to the Wireless Router

Before you mount the router on a table or a wall, connect the antennas to the back panel. It is difficult to attach the antennas after the router has been mounted to a wall.

Mounting on a Table

The router and the PoE module can be mounted on a table or other flat horizontal surface.

To mount the router on a table, firmly place the router on a table. Do not cover or obstruct the router vents, which are located on the router sides.

To mount the PoE module on a table, place the PoE module near the router so that the Ethernet cables on the PoE module can easily connect to the router Ethernet ports.

Caution Do not cover or obstruct the router vents; otherwise, overheating could occur and cause damage to

the router.

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Mounting on a Wall

This section provides information for mounting the router and the PoE module on a wall.

Guidelines for Wall Mounting

You should meet the following guidelines when you mount the router or PoE module on a wall:

• Mount the router with the front panel facing upward so that the LEDs are clearly visible.

• Mount the router low enough for you to see the LEDs.

• Mount the PoE module with the Ethernet cables (To ROUTER side) facing up, and the ports (To

LAN side) facing down.

• The Ethernet cables on the PoE module must easily connect to the Ethernet ports on the router.

• The power supply must rest on a horizontal surface such as the floor or a table. If the power supply

is not supported, the strain on the power adapter cable could cause it to disconnect from the connector on the router back panel.

Chapter 3 Router and PoE Module Mounting Procedures

• Do not install the router, PoE module, or power supplies next to a heat source of any kind, including

heating vents during winter.

Mounting the Router on a Wall

The router can be mounted on a wall by using the molded mounting brackets on the bottom of the router and three number-six, 3/4-in. (M3.5 the mounting brackets.

Caution If you are mounting the router on drywall, use three hollow-wall anchors to secure the three 1/8-in. (M3)

screws. If the screws are not properly anchored, the strain of the network cable connections could pull the router from the wall. Use the drill bit size that is specified by the hollow-wall anchor manufacturer.

x 20 mm) screws. You must provide the screws. Figure 3-1 shows

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Chapter 3 Router and PoE Module Mounting Procedures

127042

Figure 3-1 Mounting Brackets on the Bottom of the Router

Mounting on a Wall

1 Distance between two top mounting brackets

(near the front panel)

3 Vertical distance between the top mounting

brackets and the bottom bracket

2 Midpoint between the two top mounting

brackets (near the front panel)

Figure 3-2 shows the locations of the mounting screws and the router mounting brackets, and the

placement of the power adapter.

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Mounting on a Wall

CIS

800 SE

RIES

ETHERNET LAN

121714

Figure 3-2 Mounting the Router on a Wall

Chapter 3 Router and PoE Module Mounting Procedures

1 Three number-six, 3/4 in. screws 5 Maximum distance between the router and the power

adapter (6 ft. [1.8 m])

2 Distance between the top set of screws on the wall 6 Horizontal surface on which to place the power adapter 3 Vertical distance between the top screws and the bottom

screw on the wall

7 Distance between the screw head and the wall (1/8 in.

[0.32

cm])

4 Mounting brackets

3-4

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Chapter 3 Router and PoE Module Mounting Procedures

Perform the following steps to mount the router on a wall:

Step 1 Select a location on the wall on which you wish to mount the router. Using Figure 3-1 as a reference,

draw a horizontal line measuring 6.69 in. (17.0 cm) long.

Step 2 Make sure that the horizontal line is level. Drill two holes for the mounting screws, one at each end of

the line. Use the drill bit size that is specified by the screw or hollow-wall anchor manufacturer.

Step 3 Measure 3.345 in. (8.5 cm) from either one of the screw holes to determine the midpoint between the

two top mounting screws.

Step 4 From the midpoint, measure a vertical distance of 5.55 in. (14.1 cm) to determine the location for the

bottom mounting screw, and then drill a hole.

Step 5 Anchor the screws into the wall, leaving 1/8 in. (0.32 cm) between the screw head and the wall for

mounting the router.

Step 6 Hang the router on the screws as shown in Figure 3-2. Secure the screws into the latches of the mounting

brackets.

Step 7 Place the power adapter on a horizontal surface. (See Figure 3-2.)

Mounting on a Wall

Mounting the PoE Module on a Wall

The PoE module can be mounted on a wall near the router. Figure 3-3 shows the location of the mounting brackets on the bottom panel of the PoE module.

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What to Do Next

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Chapter 3 Router and PoE Module Mounting Procedures

Figure 3-3 Mounting Brackets on the Bottom Panel of the PoE Module

1 Mounting brackets 2 Distance between the mounting brackets

Perform the following steps to mount the PoE module on a wall:

Step 1 Select a location on the wall on which you wish to mount the PoE module. See Figure 3-3 for the

locations of the mounting brackets on the bottom panel.

Step 2 Mark on the wall where the mounting screws will be anchored, making sure that the marks line up

vertically. Drill two holes 1.70 the screw or hollow-wall anchor manufacturer.

Step 3 Anchor the screws into the wall, leaving 1/8 in. (0.32 cm) between the screw head and the wall for

mounting the PoE module.

Step 4 Hang the PoE module on the wall, and secure the screws into the latches of the mounting brackets. Step 5 Place the power supply on a horizontal surface.

What to Do Next

Connect devices to the router by following the instructions in Chapter 4, “Router Cabling Procedures.”

(1.70

in. [4.32 cm])

in. (4.32 cm) apart on the wall, using the drill bit size that is specified by

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CHA P TER

Router Cabling Procedures

This chapter describes the cabling procedures for Cisco 851, Cisco 857, Cisco 871, Cisco 876, Cisco

877, and Cisco 878 routers. It contains the following sections:

• Cabling for Nonwireless Routers, page 4-2

• Typical Installations, page 4-2

• Connecting the Radio Antennas to the Wireless Router, page 4-6

• Connecting the Power-over-Ethernet Module (Optional), page 4-7

• Connecting a Server, PC, or Workstation, page 4-8

• Connecting an External Ethernet Switch (Optional), page 4-9

• Connecting a Broadband Modem, page 4-11

• Connecting a Terminal or PC to the Console Port, page 4-12

• Connecting an Async Modem to the Console Port, page 4-13

• Connecting an ISDN S/T Port, page 4-14

• Connecting an ADSL Line—ADSLoPOTS Port, page 4-16

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• Connecting an ADSL Line—ADSLoISDN Port, page 4-17

• Connecting a G.SHDSL Line, page 4-18

• Connecting the AC Adapter, page 4-19

• Verifying Router Operations, page 4-21

• What to Do Next, page 4-22

Note Read Chapter 2, “Preinstallation Information,” before you start the cabling procedures, making sure to

follow the safety warnings and guidelines in the “Safety Warnings and Guidelines” section.

Note The router and the optional power-over-Ethernet (PoE) module should be mounted before being

connected to the devices. See Chapter 3, “Router and PoE Module Mounting Procedures.”

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Cabling for Nonwireless Routers

Some portions of this document do not apply to nonwireless router models. Although illustrations show the router with antennas attached, the nonwireless routers do not have antennas or connectors on the back panel. However, except for the procedures for connecting devices to the router are the same for wireless and nonwireless routers.

“Connecting the Radio Antennas to the Wireless Router” section, the

Typical Installations

Typical installations of the Cisco 850 series and Cisco 870 series routers are depicted in Figure 4-1 through Figure 4-4, as follows:

• Cisco 851 and Cisco 871 router—See Figure 4-1.

• Cisco 857 and Cisco 87 router—See Figure 4-2.

• Cisco 876 router—See Figure 4-3.

• Cisco 878 router—See Figure 4-4.

Chapter 4 Router Cabling Procedures

Figure 4-1 shows a typical installation of a Cisco 851 or Cisco 871 router. This figure shows the back

panel of a Cisco 871 router, which has two USB ports. The Cisco 851 router does not have any USB

ports; however, the connections on the other ports are the same for both the Cisco 851 and

Cisco

871 routers.

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Chapter 4 Router Cabling Procedures

LAN

Cisco 871W

CONSOLE

AUX

RESET

+5,+12 VDC

LEFT

RIGHT / PRIMARY

WAN

FE4

FE0

FE1

FE2

FE3

1 X

2 X

InternetInternet

1 2 5

122237

SN: XXXNNNNXXXX

Figure 4-1 Typical Installation of a Cisco 851 or Cisco 871 Router

Typical Installations

1 Ethernet connection to an external switch 4 Console port 2 Ethernet connection to a PC 5 Power adapter 3 WAN connection using a broadband modem to the

Internet

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Typical Installations

RIGHT / PRIMARY

ADSLoPOTS

ETHERNET LAN

Cisco 877W

CONSOLE

AUX

RESET

+5,+12 VDC

LEFT

FE4

FE3

FE2

FE1

1 X

2 X

1 2 5

122238

SN: XXXNNNNXXXX

Figure 4-2 Typical Installation of a Cisco 857 or Cisco 877 Router

Chapter 4 Router Cabling Procedures

1 Ethernet connection to an external switch 4 Console port 2 Ethernet connection to a PC 5 Power adapter 3 ADSL-over-POTS connection

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Chapter 4 Router Cabling Procedures

ADSL o ISDN

ISDN S/T

LAN

FE0

FE1

FE2

FE3

Cisco 876W

CONSOLE

AUX

RESET

+5,+12 VDC

LEFT

RIGHT / PRIMARY

1 X

2 X

1 2 6

122239

SN: XXXNNNNXXXX

Figure 4-3 Typical Installation of a Cisco 876 Router

Typical Installations

1 Ethernet connection to an external switch 4 ADSL-over-ISDN connection 2 Ethernet connection to a PC 5 Console port 3 ISDN S/T connection 6 Power adapter

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Connecting the Radio Antennas to the Wireless Router

G.SHDSL

ISDN S/T

LAN

FE0

FE1

FE2

FE3

Cisco 878W

CONSOLE

AUX

RESET

+5,+12 VDC

LEFT

RIGHT / PRIMARY

1 X

2 X

1 2 64

122240

SN: XXXNNNNXXXX

Figure 4-4 Typical Installation of a Cisco 878 Router

Chapter 4 Router Cabling Procedures

1 Ethernet connection to an external switch 4 G.SHDSL connection 2 Ethernet connection to a PC 5 Console port 3 ISDN S/T connection 6 Power adapter

Connecting the Radio Antennas to the Wireless Router

If you selected the wireless option for the router, follow these steps to attach the radio antennas:

Step 1 Attach an antenna to a reverse-polarity threaded Neill-Concelman (RP-TNC) connector on the back of

the router and tighten the antenna hand-tight.

Step 2 Orient the antenna vertically:

a. If the router is being mounted on a desk, orient the antenna straight up. b. If the router is being mounted on a wall, orient the antenna straight down.

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To LAN

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Connecting the Power-over-Ethernet Module (Optional)

If you purchased a power-over-Ethernet (PoE) module to provide inline power to devices, connect the four Ethernet cables on the PoE module to the four LAN Ethernet ports on the router. Make sure you connect all four Ethernet cables. If the cables are too close together for easy insertion, move the plastic cable guard away from the connector end of the cable. See

Caution Do not connect the PoE module power supply to the PoE module before you connect the PoE module to

the router. For information about connecting the power supply to the PoE module, see the

the AC Adapter” section.

Figure 4-5 Connecting the Power-over-Ethernet Module to the Router

Figure 4-5.

“Connecting

1 Router 4 PoE module 2 Router Ethernet ports 5 Plastic cable guard 3 Ethernet cables connecting the PoE module to

the router

After you connect the PoE module to the router, connect the Ethernet devices to the ports on the PoE module, rather than to the Ethernet ports on the router.

Note When you connect a device (such as a PC or IP phone) to the PoE module, you may notice a 1- to

2-second delay before the LED indicator for the port comes on.

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Connecting a Server, PC, or Workstation

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Connecting a Server, PC, or Workstation

To connect a server, PC, or workstation to a built-in Ethernet switch port, follow the steps given after

Figure 4-6, which shows a Cisco 871 router connected to a PC. The procedure applies to Cisco 850 series

and Cisco 870 series routers.

Figure 4-6 Connecting a Server, PC, or Workstation

Chapter 4 Router Cabling Procedures

1 Router 4 PC 2 Yellow Ethernet cable 5 RJ-45 port on the network interface card

(NIC)

3 Built-in Ethernet switch port on the router

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Chapter 4 Router Cabling Procedures

Connecting an External Ethernet Switch (Optional)

Perform the following steps to connect the PC (or other Ethernet devices) to a port on the built-in Ethernet switch.

Caution Leave the PCs turned off until after you have completed all connections to the router.

Step 1 Connect one end of the yellow Ethernet cable to a built-in Ethernet switch port on the router. Step 2 Connect the other end of the cable to the RJ-45 port on the NIC installed in the PC, server, or

workstation.

Step 3 (Optional) Connect additional servers, PCs, or workstations to the other built-in Ethernet switch ports.

Connecting an External Ethernet Switch (Optional)

If more than four PCs need to be connected to each other in an office, you may connect an external Ethernet switch to the router’s built-in switch to add additional Ethernet connections to the router.

Although Figure 4-7 shows a Cisco 871 router, the procedure in this section applies to all Cisco 850 series and Cisco 870 series routers.

To connect an external Ethernet switch to a built-in Ethernet switch port on the router, follow the steps given after

Figure 4-7, which shows this connection.

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Connecting an External Ethernet Switch (Optional)

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Catalyst 3500

SERIES

INLINE POWER

SYST

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2 X

5 X

6 X

R PS

STAT

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Figure 4-7 Connecting to an Ethernet Switch

Chapter 4 Router Cabling Procedures

1 Yellow Ethernet cable connecting an external

2 Available port on the external Ethernet switch

Ethernet switch to a built-in Ethernet switch port on the router

Perform the following steps to connect the router to an external Ethernet switch:

Step 1 Connect one end of the yellow Ethernet cable to a built-in Ethernet switch port on the router. Step 2 Connect the other end of the cable to the available port on the Ethernet switch to add additional Ethernet

connections.

Step 3 Turn on the Ethernet switch.

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Connecting a Broadband Modem

This section applies only to Cisco 851 and Cisco 871 routers. You can connect to the Internet by connecting a broadband modem. To connect to an installed DSL, cable, or long-reach Ethernet modem, follow the steps given after

Figure 4-8 Connecting to a Broadband Modem

Figure 4-8, which shows this connection.

Connecting a Broadband Modem

1 Ethernet WAN port on the router 2 Available port on the modem

Perform the following steps to connect the router to an installed DSL, cable, or long-reach Ethernet modem:

Step 1 Connect one end of the yellow cable to the Ethernet WAN FE4 port. Step 2 Connect the other end of cable to an available port on the modem. Step 3 Follow the instructions provided with your broadband modem to determine which port on the modem to

connect to.

Step 4 Turn on the broadband modem if it is not already turned on.

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Note It is recommended that you use the Cisco Router and Security Device Manager (SDM) application to

configure the Internet connection settings. See the Cisco Router and Security Device Manager (SDM) Quick Start Guide for more information.

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Connecting a Terminal or PC to the Console Port

The console port is a service port to which you can connect a terminal or PC either to configure the software by using the command-line interface (CLI) or to troubleshoot problems with the router.

Although Figure 4-9 shows a Cisco 871 router, the procedure in this section applies to all Cisco 850 series and Cisco 870 series routers.

To connect a terminal or PC to the console port, follow the steps given after Figure 4-9.

Figure 4-9 Connecting a Terminal or PC to the Console Port

1 Console port on the router 2 DB-9 connector

Perform the following steps to connect the router’s console port to a terminal or PC:

Step 1 Connect the RJ-45 connector on the light blue cable to the router console port. Step 2 Connect the DB-9 connector to a terminal or PC.

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Cisco 857W

SN: XXXNNNNXXXX

127049

ABC3DEF

JKLGHI6MNO

TUVPQRS9WXYZ

OPER

Connecting an Async Modem to the Console Port

The Cisco 850 series and Cisco 870 series routers support the dial backup function, which allows a user to connect an analog modem to the console port as a backup link to the WAN port in case the ADSL service goes down.

Note To connect an analog modem to the console port, you will need an optional router modem cable. Contact

your router vendor to order this cable.

Although Figure 4-10 shows the async modem connection to the console port on the Cisco 857 router, this connection applies to all Cisco 850 series and Cisco 870 series routers.

Figure 4-10 Connecting an Async Modem to the Console Port

1 Router console port 4 Wall jack connected by an RJ-11 telephone

cable to a port on an async modem

2 Router modem cable 5 Telephone connected by an RJ-11 telephone

cable to a port on an async modem (optional)

3 Available port on an async modem

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Connecting an ISDN S/T Port

Perform the following steps to connect the console port on the router to an async modem:

Step 1 Connect the RJ-45 end of the router modem cable to the console port. Step 2 Connect the DB-25 connector end of the router modem cable to an available port on the async modem. Step 3 Connect one end of the RJ-11 telephone cable to a wall jack, and then connect the other end of the RJ-11

cable to the modem.

Step 4 (Optional) Connect one end of an RJ-11 telephone cable to a telephone, fax, or other device, and then

connect the other end of the RJ-11 cable to the modem.

Connecting an ISDN S/T Port

This section applies to Cisco 876 and Cisco 878 routers. You can connect the ISDN S/T port to the ISDN service provider as a backup link to the WAN port in case the ADSL service goes down.

The cabling requirements and information for the ISDN S/T connection follow:

• You must provide two unshielded Category 5 cables. The first cable connects the NT1 box to the

splitter, and the second cable connects the splitter to the wall jack.

Chapter 4 Router Cabling Procedures

• There are RJ-45 connectors at both ends of the default orange ISDN S/T cable. However, an

RJ-45-to-RJ-11 ISDN S/T cable is available upon request if the wall jack at the site requires an RJ-11 connector. Contact your router reseller for the appropriate cable.

Caution Both LAN and WAN ports can use RJ-45 connectors. Use caution when connecting cables to these

connectors. To avoid damage to the router, do not connect telephone-network voltage (TNV) circuits (such as ISDN or DSL circuits) to safety extra-low voltage (SELV) circuits (such as LAN circuits).

Although Figure 4-11 shows an ISDN S/T connection for a Cisco 876 router, this connection also applies to a Cisco 878 router.

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Chapter 4 Router Cabling Procedures

RIG

T / P

RIM

L o

Cisco 876W

127094

Figure 4-11 Connecting the ISDN S/T Port to the ISDN Service Provider

Connecting an ISDN S/T Port

1 One end of the ISDN S/T cable that connects

to the ISDN S/T port on the router

5 ADSL splitter that is provided by the ADSL

service provider

2 Network termination 1 (NT1) box 6 Other end of the first unshielded Category 5

cable that connects to the telephone line port on the splitter

3 Other end of the ISDN S/T cable that connects

to the S/T port on the NT1 box

7 One end of the second unshielded Category 5

cable that connects to the telecommunication service port on the splitter

4 One end of the first unshielded Category 5

cable that connects to the U port on the NT1

8 Other end of the second unshielded

Connecting a G.SHDSL Line

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Perform the following steps to connect the ADSL line to a cable wall jack:

Step 1 Connect the RJ-11 end of the ADSL cable to the ADSLoISDN port on the router. Step 2 Connect the other RJ-11 end of the ADSL cable to the local ADSL connector port on the ADSL splitter

(provided by the ADSL service provider).

Step 3 Connect the unshielded Category 5 cable from the outside ADSL port on the splitter to a wall jack.

Connecting a G.SHDSL Line

This section applies to the Cisco 878 router only. To connect the router to a G.SHDSL line, perform the steps given after

Figure 4-14 Connecting the G.SHDSL Line

Figure 4-14.

Chapter 4 Router Cabling Procedures

1 G.SHDSL port on the router 2 DSL wall jack

Perform the following steps to connect the router to an installed DSL:

Step 1 Connect one end of the lavender DSL cable to the G.SHDSL port on the router. Step 2 Connect the other end of the cable to the DSL wall jack.

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Connecting the AC Adapter

To connect the AC adapter, follow the steps given after Figure 4-15. Although the illustration shows the Cisco 871 router, the procedure applies to all Cisco 850 series and Cisco 870 series routers.

Connecting the AC Adapter

Warning

The device is designed to work with TN power systems.

Statement 19

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120VAC, 20A U.S. (240VAC, 16 to 20A international) is used on the phase conductors (all current-carrying conductors). The fuse or circuit breaker must have adequate safety approvals recognized by the country of usage.

Statement 119

Figure 4-15 Connecting the AC Adapter (No PoE Module)

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1 Router 4 Desktop power adapter 2 Router input jack 5 Power cord plug 3 Power cord

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Connecting the AC Adapter

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Figure 4-16 Connecting AC Adapters to the Router and to the PoE Module

Chapter 4 Router Cabling Procedures

1 Router 5 Router power adapter 2 Ethernet cables on the PoE module 6 PoE module power adapter plug 3 PoE module 7 Router power adapter plug 4 PoE module power adapter

Perform the following steps to connect power to the router and to the PoE module:

Step 1 Connect one end of the power supply cable to the input jack of the router. Step 2 Connect the other end of the power supply cable to the router power adapter. Step 3 If a PoE module is connected to the router, connect the PoE module power adapter to the PoE module. Step 4 Plug the power cord of the router power adapter into an electrical outlet. If a PoE module is connected

to the router, plug the power cord for the PoE module into an electrical outlet.

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Chapter 4 Router Cabling Procedures

Verifying Router Operations

To verify that all devices are properly connected to the router, turn on all the connected devices; then use

Table 4-1 to help you verify correct router operation by checking the LEDs.

Ta b l e 4-1 Verifying the Router Operation

Power and Link LEDs to Check Normal Patterns

Power OK On when power is supplied to router.

To servers, PCs, or workstations connected to the LAN ports (FE0, FE1, FE2, or FE3)

To broadband modem, or to an external Ethernet switch

To xDSL line (ADSL or G.SHDSL)

ETHERNET LAN 0, ETHERNET ETHERNET ETHERNET LAN 3

WAN RXD WAN RXD blinks when a port on the built-in Ethernet

WA N TX D WAN TXD blinks when a port on the built-in Ethernet switch

WA N LN K WAN LNK is on when the WAN port is physically connected

WAN RXD WAN RXD blinks when the WAN port receives an Ethernet

WA N TX D WAN TXD blinks when the WAN port sends an Ethernet

ADSL CD, G.SHDSL CD WAN xDSL carrier detect status:

LAN 1, LAN 2, or

ETHERNET LAN 0, ETHERNET LAN 1, ETHERNET LAN

2, or ETHERNET LAN 3 is on when the LAN port is

physically connected to a server, PC, or workstation.

switch receives an Ethernet packet.

sends an Ethernet packet.

to a broadband modem or to an external Ethernet switch.

packet.

• On when the line is connected to the ADSL or G.SHDSL

DSLAM.

Verifying Router Operations

• Blinks when the router tries to connect to the ADSL or

G.SHDSL DSLAM.

ADSL RXD, G.SHDSL RXD ADSL RXD or G.SHDSL RXD blinks when the xDSL line

receives a packet.

ADSL TXD, G.SHDSL TXD ADSL RXD or G.SHDSL TXD blinks when the xDSL line

sends a packet.

To ISDN line ISDN LNK ISDN line status—Green if the ISDN line is up.

ISDN B1 and ISDN B2 ISDN BRI channel status—Orange if the channel is up.

To PPP clients PPP PPP is on if either a PPPoE or PPPoA client is running.

To VPN tunnel VPN VPN is on if a crypto session is running.

To wireless LAN WLAN OK Wireless LAN link status:

• Solid green if at least one client is associated.

• Blinks if no client is associated.

WLAN DATA WLAN DATA is on if there is traffic on the wireless link.

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What to Do Next

After verifying that the router cabling is correct and the power up is successful, perform the initial configuration of the router as described in

Chapter 4 Router Cabling Procedures

Chapter 5, “Initial Configuration.”

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CHA P TER

Initial Configuration

This chapter provides instructions for performing the initial configuration of the router, and contains the following sections:

• Installing Cisco Router and Security Device Manager, page 5-1

• Initial Configuration Using Cisco SDM, page 5-1

• Initial Configuration Using the Setup Command Facility, page 5-2

• Initial Configuration Using the Cisco CLI—Manual Configuration, page 5-4

• Verifying the Initial Configuration, page 5-5

• What to Do Next, page 5-5

Installing Cisco Router and Security Device Manager

Once you have completed the cable connections and powered up the router, we recommend that you use the Cisco router settings.

To install Cisco SDM for configuring the router, follow these steps:

Step 1 Connect a PC to the router console port. Step 2 Insert the Cisco SDM software CD into the CD drive of the PC to launch an installation wizard. Install

Cisco

Step 3 Use Cisco SDM to configure the router by following the instructions in the Cisco Router and Security

Device Manager (SDM) Quick Start Guide.

Router and Security Device Manager (SDM) web-based application to configure the initial

SDM by following the instructions on the installation wizard user interface.

Initial Configuration Using Cisco SDM

If the following messages appear at the end of the startup sequence, Cisco SDM is installed on your router:

yourname con0 is now available

Press RETURN to get started.

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Chapter 5 Initial Configuration

Initial Configuration Using the Setup Command Facility

For instructions on configuring your router by using SDM, see the Cisco Router and Security Device

Manager (SDM) Quick Start Guide.

Initial Configuration Using the Setup Command Facility

This section describes how to use the setup command facility to configure a hostname for the router, set passwords, and configure an interface for communication with the management network.

If the following messages appear at the end of the startup sequence, the setup command facility has been invoked automatically:

--- System Configuration Dialog ---

At any point you may enter a question mark '?' for help. Use ctrl-c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'.

Would you like to enter the initial configuration dialog? [yes/no]:

The setup command facility prompts you for basic information about your router and network, and it creates an initial configuration file. After the configuration file is created, you can use the CLI or Security Device Manager to perform additional configuration.

The prompts in the setup command facility vary, depending on your router model, the installed interface modules, and the software image. The following example and the user entries (in

bold) are shown as

examples only.

Note If you make a mistake while using the setup command facility, you can exit and run the setup command

facility again. Press Ctrl-C, and enter the setup command at the privileged EXEC mode prompt (Router#).

Step 1 To proceed using the setup command facility, enter yes:

Would you like to enter the initial configuration dialog? [yes/no]: yes

Step 2 When the following messages appear, enter yes to enter basic management setup:

At any point you may enter a question mark '?' for help. Use ctrl-c to abort configuration dialog at any prompt.

Default settings are in square brackets '[]'.

Basic management setup configures only enough connectivity for management of the system, extended setup will ask you to configure each interface on the system

Would you like to enter basic management setup? [yes/no]: yes

Step 3 Enter a hostname for the router (this example uses Router):

Configuring global parameters: Enter host name [Router]: Router

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Chapter 5 Initial Configuration

Step 4 Enter an enable secret password. This password is encrypted (more secure) and cannot be seen when

viewing the configuration:

The enable secret is a password used to protect access to privileged EXEC and configuration modes. This password, after entered, becomes encrypted in the configuration. Enter enable secret: xxxxxx

Step 5 Enter an enable password that is different from the enable secret password. This password is not

encrypted (less secure) and can be seen when viewing the configuration:

The enable password is used when you do not specify an enable secret password, with some older software versions, and some boot images. Enter enable password: xxxxxx

Step 6 Enter the virtual terminal password, which prevents unauthenticated access to the router through ports

other than the console port:

The virtual terminal password is used to protect access to the router over a network interface. Enter virtual terminal password: xxxxxx

Step 7 Respond to the following prompts as appropriate for your network:

Configure SNMP Network Management? [yes]: Community string [public]:

Initial Configuration Using the Setup Command Facility

A summary of the available interfaces is displayed.

Step 8 Choose one of the available interfaces for connecting the router to the management network:

Enter interface name used to connect to the management network from the above interface summary: fastethernet0

Step 9 Respond to the following prompts as appropriate for your network:

Configuring interface FastEthernet0: Use the 100 Base-TX (RJ-45) connector? [yes]: yes Operate in full-duplex mode? [no]: no Configure IP on this interface? [yes]: yes IP address for this interface: 172.1.2.3 Subnet mask for this interface [255.255.0.0] : 255.255.0.0 Class B network is 172.1.0.0, 26 subnet bits; mask is /16

Step 10 The configuration is displayed:

The following configuration command script was created:

hostname Router enable secret 5 $1$D5P6$PYx41/lQIASK.HcSbfO5q1 enable password xxxxxx line vty 0 4 password xxxxxx snmp-server community public ! no ip routing ! interface FastEthernet0 no shutdown speed 100 half-duplex ip address 172.1.2.3 255.255.0.0 !

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Initial Configuration Using the Cisco CLI—Manual Configuration

Step 11 Respond to the following prompts. Enter 2 to save the initial configuration.

[0] Go to the IOS command prompt without saving this config. [1] Return back to the setup without saving this config. [2] Save this configuration to nvram and exit.

Enter your selection [2]: 2 Building configuration... Use the enabled mode 'configure' command to modify this configuration.

Press RETURN to get started! RETURN

The user prompt is displayed.

Router>

Step 12 Verify the initial configuration. See the “Verifying the Initial Configuration” section for verification

procedures.

Initial Configuration Using the Cisco CLI—Manual Configuration

This section shows how to display a command-line interface (CLI) prompt for configuration using the CLI, and it directs you to documentation for the CLI configuration.

You can use the CLI if the following messages appear at the end of the startup sequence:

--- System Configuration Dialog ---

At any point you may enter a question mark '?' for help. Use ctrl-c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'.

Would you like to enter the initial configuration dialog? [yes/no]:

If these messages do not appear, SDM and a default configuration file were installed on the router. To use SDM to configure the router, see the

Note Be sure to save your configuration changes occasionally so that they are not lost during resets, power

cycles, or power outages. Use the copy EXEC mode prompt (Router#) to save the configuration to NVRAM.

Step 1 To proceed with manual configuration using the CLI, enter no when the power-up messages end.

Would you like to enter the initial configuration dialog? [yes/no]: no

“Initial Configuration Using Cisco SDM” section.

running-config startup-config command at the privileged

5-4

Step 2 Press Return to terminate autoinstall and continue with manual configuration.

Would you like to terminate autoinstall? [yes] Return

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Chapter 5 Initial Configuration

Step 3 Press Return to display the Router> prompt.

... flashfs[4]: Initialization complete. Router>

Step 4 Enter privileged EXEC mode.

Router> enable Router#

Step 5 For configuration using the CLI, see the applicable configuration procedures in the Cisco 850 Series and

Cisco 870 Series Access Routers Software Configuration Guide.

Step 6 Verify the initial configuration. See the “Verifying the Initial Configuration” section for verification

procedures.

Verifying the Initial Configuration

To verify that the new interfaces are operating correctly, perform the following tests:

• To verify that the interfaces are operating correctly and that the interfaces and line protocol are in

the correct state—up or down—enter the show interfaces command.

• To display a summary status of the interfaces configured for IP, enter the show ip interface brief

command.

• To verify that you configured the correct hostname and password, enter the show configuration

command.

After you have completed and verified the initial configuration, you can configure your Cisco router for specific functions.

What to Do Next

For information and instructions on how to perform additional configurations for the router, see the

Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide.

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What to Do Next

Chapter 5 Initial Configuration

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Troubleshooting

This chapter describes problems that could occur with the router hardware, possible causes of the problems, and steps for solving the problems. This chapter contains the following sections:

• Before You Call Your Cisco Reseller, page 6-1

• Problems During First Startup, page 6-2

• Problems After the Router Is Running, page 6-3

For more information on problems that could occur with the software, see the Cisco 850 Series and Cisco

870 Series Access Routers Software Configuration Guide.

Before You Call Your Cisco Reseller

Some of the solutions in this chapter instruct you to contact your Cisco reseller. Before you contact your reseller, have the following information ready:

CHA P TER

Type of Information Your Information

Router model and serial number (on the back panel)

Maintenance agreement or warranty information

Date you received the router

Brief description of the problem

Brief description of the steps you have taken to resolve the problem

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Problems During First Startup

Table 6-1 lists problems that could occur the first time you turn on the router.

Ta b l e 6-1 Problems During First Startup

Symptom Problem Solutions

All LEDs, including OK LED, are off.

No connection to modem or to Ethernet switch. (WAN LNK LED is off.)

No connection to Ethernet devices.

(ETHERNET LAN 0, ETHERNET LAN 1, ETHERNET LAN 2, and ETHERNET LAN

3 LEDs are off.)

Cannot connect to the Internet.

No connection to xDSL link. (The WAN LNK LED on the front panel is off for a long time.)

No power to router. Perform the following tasks in order:

1. Make sure that the power switch is set to ON.

2. Make sure that all connections to and from the power supply are

secure.

3. Make sure that the power outlet has power.

4. If the problem continues, the power supply could be faulty.

Contact your Cisco reseller.

A cable-related problem:

• Improperly connected

cable.

• Damaged cable.

Perform the following tasks in order:

1. Make sure that you have cabled the device correctly. Review the

instructions in

2. Make sure that the connectors at both ends of the cable are

securely seated.

3. Check whether the cable is physically damaged. If it is damaged,

order another cable from Cisco, or replace it with a similar cable.

A cable-related problem:

• Improperly connected

cable.

• Damaged cable.

Perform the following tasks in order:

1. Make sure that you have cabled the device correctly. See

Chapter 4, “Router Cabling Procedures.”

2. Make sure that the connectors at both ends of the cable are

securely seated.

3. Check whether the cable is physically damaged. If it is damaged,

order another cable from Cisco Systems, or replace it with a similar cable.

• Broadband modem or

external Ethernet switch is not connected or turned on.

• There is a problem with

the broadband or WAN service.

• Router is improperly

• Reconnect the broadband modem or external Ethernet switch,

and make sure that it is receiving power.

• Check with the Internet service provider or corporate network

administrator to determine whether there is a problem.

• Use the Cisco Router and Security Device Manager (SDM)

software to configure the router, or configure the router using a PC that is connected to the console port.

configured.

Wrong cable. • Make sure that you are using the correct cable. See Appendix A,

“Specifications.”

Chapter 6 Troubleshooting

Chapter 4, “Router Cabling Procedures.”

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Chapter 6 Troubleshooting

Table 6-1 Problems During First Startup (continued)

Symptom Problem Solutions

No connection to xDSL link. (The WAN LNK LED on the front panel is off for a long time.)

No connection to xDSL link. (The CD

Improperly connected cable. • Make sure that you have connected the ADSL cable properly.

See

• Make sure that the connectors at both ends of the cable are

securely seated.

Wrong cable. • Make sure that you are using the correct cable. See Appendix A,

“Specifications.”

LED on the front panel is off for a long time.)

No connection to xDSL link. (The CD LED on the front panel is off for a long time.)

Improperly connected cable. • Make sure that you have connected the ADSL cable properly.

See

• Make sure that the ADSL port is connected to the correct port on

the ISDN splitter.

• Make sure that the connectors at both ends of the cable are

securely seated.

Problems After the Router Is Running

Chapter 4, “Router Cabling Procedures.”

Problems After the Router Is Running

Table 6-2 lists problems that could occur after the router has been up and running.

Ta b l e 6-2 Problems After the Router Is Running

Symptom Problem Solutions

Problems with Ethernet connection. (ETHERNET LAN 0, ETHERNET LAN 1, ETHERNET LAN 2, and ETHERNET LAN 3 LEDs are off.)

Connection to the broadband or Ethernet line is intermittent or lost. (The WAN LNK, ADSL CD, or G.SHDSL CD LED on the front panel is off.)

A cable-related problem:

• Disconnected cable.

• Damaged cable.

A cable-related problem:

• Disconnected cable.

• Damaged cable.

Problem with broadband line or WAN service.

Perform the following tasks in order:

1. Make sure that the connectors at both ends of the

cable are secure.

2. Check whether the cable is physically damaged.

If it is damaged, order another cable from Cisco

Perform the following tasks in order:

1. Make sure that the connectors at both ends of the

cable are secure.

2. Make sure that the cable is not physically

damaged. If it is damaged, order another cable from Cisco cable.

Contact your broadband line or WAN service provider to determine whether there is a problem.

Systems, or replace it with a similar cable.

Systems, or replace it with a similar

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Problems After the Router Is Running

Table 6-2 Problems After the Router Is Running (continued)

Symptom Problem Solutions

Connection to the xDSL line is intermittent or lost. (The ADSL CD or G.SHDSL CD LED on the front panel is off.)

Connection to the xDSL line or WAN port is loose. (The WAN LNK LED and the ETHERNET LAN 0, ETHERNET LAN 1, ETHERNET LAN 2, or ETHERNET LAN 3 LED on the front panel are off.)

Connection to the xDSL line is intermittent or lost. (The ADSLCD or G.SHDSL CD LED on the front panel is off.)

A cable-related problem:

• Disconnected cable.

• Damaged cable.

Problem with DSL line or WAN service.

A cable-related problem:

• Disconnected cable.

• Damaged cable.

• Make sure that the connectors are secure at both

ends of the cable.

• Check whether the cable is physically damaged.

If it is damaged, order another cable from Cisco

Contact your DSL line or WAN service provider to determine whether there is a problem with the DSL or WAN service.

• Make sure that the Ethernet port is not configured

to be administratively down.

• Make sure that the device connected to the

Ethernet port is connected, powered on, and properly configured.

• Make sure that the connectors at both ends of the

cable are secure.

Chapter 6 Troubleshooting

Systems or replace it with a similar cable.

Connection to the xDSL line or WAN is lost. (The ADSL CD or G.SHDSL CD LED and the ETHERNET LAN 0, ETHERNET LAN 1, ETHERNET LAN 2, or ETHERNET LAN 3 LED on the front panel are off).

Problem with xDSL or WAN service.

• Check whether the cable is physically damaged.

If it is damaged, order another cable from Cisco Systems or replace it with a similar cable.

• Check all passwords and device names to make

sure that they are correct.

• Contact your DSL line or WAN service provider

to determine whether there is a problem with the ADSL or WAN service.

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APPENDIX

Specifications

This appendix provides system, port, and cabling specifications for Cisco 850 series and Cisco 870 series routers. It contains the following sections:

• Router Specifications, page A-1

• Power-over-Ethernet Module Specifications, page A-2

• LAN Port Pinouts, page A-3

• Console Connector Pinouts, page A-4

• ADSL Port Connector Pinouts, page A-4

• Power Output Connector Pinouts, page A-5

• Cable Specifications, page A-5

Router Specifications

Table A-1 outlines the system specifications for the routers.

Ta b l e A-1 Router Specifications

Description Design Specification Physical Dimensions

Dimensions (H x W x D) • With antenna connectors: 2.0 x 10.25

9.13 in. (51 x 260 x 232 mm)

• Without antenna connectors: 2.0 x 10.25

8.5 in. (51 x 260 x 216 mm)

Weight (not including desktop power supply) 2.10 lb (0.95 kg)

Environmental Operating Ranges

Nonoperating temperature –4 to 149°F (–20 to 65°C)

Nonoperating humidity 5 to 95% relative humidity

Nonoperating altitude 0 to 15,000 ft (4570 m)

Operating temperature 32 to 104°F (0 to 40°C)

Operating humidity 10 to 85% relative humidity

Operating altitude 0 to 10,000 ft (3000 m)

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Power-over-Ethernet Module Specifications

Table A-1 Router Specifications (continued)

Description Design Specification Router Power

AC input voltage 100 to 240 VAC

Frequency 50 to 60 Hz

Power output 26 W maximum

Output voltages 5 V and 12 V

Integrated 802.11b/g Radio Module

Radio technology IEEE 802.11b and 802.11g standard compliant

Operating frequency 2412 to 2484 MHz ISM1 band

Modulation schemes OFDM2, DQPSK3, DBPSK4 16 QAM5, 64 QAM,

and CCK

Number of channels 11 channels for the U.S., 13 channels for Europe,

14 channels for Japan

Data rate 54 Mbps with fallback rates of 48, 36, 24, 18, 12,

9, and 6 Mbps

Media access protocol CSMA/CA7 with ACK

Power consumption (typical) 500 mA.3.3V at transmit mode, 320 mA/3.3V at

receive mode

1. ISM = Industrial, Scientific, and Medical

2. OFDM = orthogonal frequency-division multiplexing

3. DQPSK = differential quaternary phase shift keying

4. DBPSK = differential binary phase shift keying

5. QAM = quadrature amplitude modulation

6. CCK = complementary code keying

7. CSMA/CA = carrier sense multiple access with collision avoidance

8. ACK = acknowledgement

Appendix A Specifications

Power-over-Ethernet Module Specifications

Table A-2 shows the specifications for the power-over-Ethernet (PoE) module.

Ta b l e A-2 POE Module Specifications

Description Design Specification Physical Dimensions

Dimensions (H x W x D) 1.13 x 4.0 x 10.25 in. (29 x 102 x 260 mm)

Weight (not including desktop power supply)

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A-2

0.32 lb (0.14 kg)

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Appendix A Specifications

Table A-2 POE Module Specifications (continued)

Description Design Specification Environmental Operating Ranges

Nonoperating temperature –4 to 149°F (–20 to 65°C)

Nonoperating humidity 5 to 95% relative humidity

Nonoperating altitude 0 to 15,000 ft (4570 m)

Operating temperature 32 to 104°F (0 to 40°C)

Operating humidity 10 to 85% relative humidity

Operating altitude 0 to 10,000 ft (3000 m)

Power

AC input voltage 100 to 240 VAC

Frequency 50 to 60 Hz

Power output 80 W maximum

Output voltage 48 VDC

LAN Port Pinouts

For information on regulatory compliance, see the Regulatory Compliance and Safety Information for Cisco

800 Series and SOHO Series Routers document that was shipped with your router.

Warning

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

Statement 1040

LAN Port Pinouts

Table A-3 provides pinouts for the Ethernet LAN port on the routers.

Ta b l e A-3 Ethernet LAN Port Pinouts

Pin Function

1 RX+

2 RX–

3 TX+

4 Unused

5 Unused

6 TX–

7 Unused

8 Unused

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Console Connector Pinouts

Table A-4 provides pinouts for the console connector (for connecting a terminal or PC).

Ta b l e A-4 Console Connector Pinouts (RJ-45-to-DB-9)

RJ-45 Pin Function DB-9 Pin

1 RT S 8

2 DTR 6

3 TXD 2

4 GND 5

5 GND 5

6 RXD 3

7 DSR 4

8 CTS 7

Appendix A Specifications

The console port is configured as a data communications equipment (DCE) device. The default parameters for the console port are as follows:

• 9600 baud

• 8 data bits

• No parity

• One stop bit

ADSL Port Connector Pinouts

Table A-5 shows ADSL connector pinouts.

Ta b l e A-5 ADSL Connector Pinouts (RJ-11-to-RJ-45)

RJ-11 Pin Function RJ-45 Pin Function

1 Unused 1 Unused

2 Unused 2 Unused

3 Ring 3 Unused

4 Tip 4 Ring

5 Unused 5 Tip

6 Unused 6 Unused

7 Unused

8 Unused

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Appendix A Specifications

Power Output Connector Pinouts

Figure A-1shows the power output connector and pin numbers.

Figure A-1 Power Connector Port

OLE

4 5 6 1 2 3

+5,+12 VDC

Power Output Connector Pinouts

Table A-6 provides pinouts for the power output connector for the routers.

Ta b l e A-6 Power Output Connector Pinouts

Pin Signal

1 Ground

2 Ground

3 Ground

4 +12V

5 +5V

6 +5V

Cable Specifications

This section provides specifications for the following Ethernet cables, which you might need to provide:

• Straight-through cable

• Crossover cable

Because of the autocrossover (autosensing) function, both straight-through and crossover cables can be used for the Ethernet LAN port.

247708

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Cable Specifications

Ethernet Cable Specifications

Table A-7 provides specifications that apply to both straight-through and crossover Ethernet cables.

Ta b l e A-7 Ethernet Cable Specifications

Ty pe Category

10BASE-T Category 3 or 5

100BASE-T Category 5 or higher

Maximum Cable Length

The maximum length for the Ethernet cables that connect equipment to the router is 328 ft (100 m). The length also indicates the maximum distance between the router and the equipment connected to it.

Appendix A Specifications

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INDEX

Numerics

100BASE-T 7 10BASE-T 7

802.11b/g integrated radio module 8, 11

AC adapter

connecting to router 19

AC input voltage specifications

PoE module 3 router 2

ADSL connector pinouts 4

ADSL-over-ISDN port

connecting 17 description 8

ADSL-over-POTS port

connecting 16 description 7

altitude specifications

PoE module 3 router 1

antennas

connecting to the router 6 supported 12

asymmetric digital subscriber line

See ADSL

async modem

connecting to console port 13

autosensing feature 8

back panel

Cisco 851 2 Cisco 857 4 Cisco 871 2 Cisco 876 5 Cisco 877 4 Cisco 878 7 PoE module 13

broadband modem

connecting to router 11

cables

autosensing in router 8 maximum length 5

specifications (table) 5 caution, defined 8 Cisco reseller, contacting 1 Cisco Router and Security Device Manager 1

CLI

for initial configuration 4

connecting

AC adapter 19

ADSL-over-ISDN port 17

ADSL-over-POTS port 16

async modem to the console port 13

broadband modem 11

console port to async modem 13

external Ethernet switch 9

G.SHDSL port 18

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Index

ISDN S/T port 14 nonwireless routers 2 PC to the console port 12 power 18 power-over-Ethernet module 7 power supply 19 server, PC, or workstation 8 to the Internet 11

console connector pinouts 4

console port

connecting

to an async modem 13

to a PC 12 default parameters 4 description 8

crossover cable 8

damage to the router, preventing 4 diversity omnidirectional antenna 12 DSLAM 8 dying gasp feature 8

electrostatic damage, preventing 3

Ethernet port

connecting to a PC 8 description 7

Ethernet ports

pinouts 3

external Ethernet switch

connecting to router 9

Fast Ethernet WAN port

connecting to the Internet 11

description 7 feature summary (table) 7 flash memory 8

frequency specifications

PoE module 3

router 2

front panel

Cisco 851 and Cisco 871 2

Cisco 857 and Cisco 877 3

Cisco 876 5

Cisco 878 6

PoE module 13

G.SHDSL port

connecting 18

description 8

hardware security 17

humidity specifications

PoE module 3

router 1

initial configuration

using

Cisco SDM 1 CLI 4 setup command facility 2

installation

Cisco 851 or Cisco 871 router example 3

Cisco 857 or Cisco 877 router example 4

Cisco 876 router example 5

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Index

Cisco 878 router example 6

preparing for 5 integrated 802.11b/g radio module 8, 11 IPSec hardware accelerator 8

ISDN S/T port

connecting 14

description 7 items shipped with the router 4

Kensington security slot 17

LAN port pinouts 3

LEDs

PoE module 16

router 9

used in troubleshooting 2

verifying router operations 21

manual configuration

using the CLI 4

memory

flash 8

SDRAM 8

summary 16

modem

connecting to router 11

mounting

on a table 1

on a wall

guidelines 2 PoE module 5 router 2

multirate symmetrical high-data-rate digital subscriber line

(G.SHDSL)

nonwireless routers 2

omnidirectional antenna 12

output voltage specifications

PoE module 3 router 2

patch antenna 12

connecting to router 8

pinouts

ADSL connector 4 console connector 4 LAN port 3

PoE module. See power-over-Ethernet module

port

ADSL-over-ISDN 8 ADSL-over-POTS 7 console 8 Ethernet 7 G.SHDSL 8 ISDN S/T port 7

power

problems 2

specifications

PoE module 3 router 2

power-over-Ethernet module

connecting 7 description 12

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Index

specifications 2 power supply, connecting 19 preventing damage to the router 4

problems

after router is running (table) 3

during first startup (table) 2

regulatory compliance and safety information 17 Reset button 8

router models

Cisco 851 and Cisco 871 1

Cisco 857 and Cisco 877 3

Cisco 876 5

Cisco 878 6

router ports

Cisco 851 and Cisco 871 3

Cisco 857 and Cisco 877 5

Cisco 876 6

Cisco 878 7 router specifications 1

connecting to router 8

setup command facility

for initial configuration 2 show configuration command 5 show interfaces command 5 show ip interface brief command 5

specifications

Ethernet cable (table) 5

PoE module 2

router 1 startup problems 2 straight-through cable 8 system specifications (table) 1

temperature specifications

PoE module 3

router 1 troubleshooting 1 to 4

safety warnings

general 1 wireless routers 3

SDM

for initial configuration 1 installing 1

SDRAM 8

security

IPSec hardware accelerator 8 Kensington lock 17 software features 8

serial number location 9

server

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unpacking the router 4

USB ports

description 8

power allocation 3

verifying

initial configuration 5

router operations 21

wall mounting

PoE 5

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router 2

warnings

general 1 wireless routers 3

weight specifications

PoE module 2 router 1

wireless routers

description 11 supported antennas 12

workstation

connecting to router 8

Index

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Index

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Cisco System 877-K9 User Manual

Cisco 850 Series and Cisco 870 Series Access Routers Hardware Installation Guide

CONTENTS

Preface

Objective

Audience

Organization

Conventions

Related Documentation

Obtaining Documentation and Submitting a Service Request

Product Overview

General Descriptions of the Router Models

Cisco 851 and Cisco 871 Ethernet-to-Ethernet Routers

Router Ports on the Cisco 851 and Cisco 871 Back Panel

USB Port Power Allocation on the Cisco 871 Router

Cisco 857 and Cisco 877 ADSL-over-POTS Routers

Router Ports on the Cisco 857 and Cisco 877 Back Panel

Cisco 876 ADSL-over-ISDN Router

Router Ports on the Cisco 876 Back Panel

Cisco 878 SHDSL Router

Feature Summary

Router Ports on the Cisco 878 Back Panel

Hardware Features

Serial Number Location

LED Indicators on the Routers

Integrated 802.11b/g Radio Module (Wireless Models Only)

Supported Cisco Radio Antennas (Wireless Models Only)

External Power-over-Ethernet Module (Optional)

LED Indicators on the PoE Module

Router Memory

Router Hardware Security

Regulatory Compliance

Preinstallation Information

Safety Warnings and Guidelines

Additional Warnings for Wireless Routers

General Safety Guidelines for Wireless Routers

Preventing Electrostatic Discharge Damage

Preventing Damage to the Router

Unpacking the Box

Preparing for Installation

What to Do Next

Router and PoE Module Mounting Procedures

Connecting Antennas to the Wireless Router

Mounting on a Table

Mounting on a Wall

Guidelines for Wall Mounting

Mounting the Router on a Wall

Mounting the PoE Module on a Wall

What to Do Next

Router Cabling Procedures

Cabling for Nonwireless Routers

Typical Installations

Connecting the Radio Antennas to the Wireless Router

Connecting the Power-over-Ethernet Module (Optional)

Connecting a Server, PC, or Workstation

Connecting an External Ethernet Switch (Optional)

Connecting a Broadband Modem

Connecting a Terminal or PC to the Console Port

Connecting an Async Modem to the Console Port

Connecting an ISDN S/T Port

Connecting a G.SHDSL Line

Connecting the AC Adapter

Verifying Router Operations

What to Do Next

Initial Configuration

Installing Cisco Router and Security Device Manager

Initial Configuration Using Cisco SDM

Initial Configuration Using the Setup Command Facility

Verifying the Initial Configuration

What to Do Next

Troubleshooting

Before You Call Your Cisco Reseller

Problems During First Startup

Problems After the Router Is Running

Specifications

Router Specifications

Power-over-Ethernet Module Specifications

LAN Port Pinouts

Console Connector Pinouts

ADSL Port Connector Pinouts