Cisco CISCO2515-RF - 2515 Router, 2501, 2509 - Router - EN, CPA2501, 2502 User Manual

About This Guide

This section discusses the objectives, audience, organization, and conventions of this
hardware installation and configuration guide.

Objectives

This publication will step you through the initial site preparation and installation of the
router. Troubleshooting, maintenance procedures, and cable specifications are also
provided.

Although minimum software configuration information is provided, it is not meant as
comprehensive router configuration instructions. For detailed software configuration
information, refer to the Cisco IOS configuration guide and command reference
publications. These publications are available on the documentation CD that came with
your router or you can order printed copies. Refer to the “Ordering Documentation” section
in the “Overview of the Router” chapter for ordering information.

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

Audience

Thispublicationisdesignedforthepersoninstallingtherouter, who shouldbefamiliar with
electronic circuitry and wiring practices and have experience as an electronic or
electromechanical technician.

About This Guide xv

Organization

Organization

The major sections of this hardware installation and configuration guide are as follows:

• Chapter 1, “Overview of the Router,” discusses the features and specifications of the

routers, and describes how to obtain technical support and order documentation.

• Chapter 2, “Preparing to Install the Router,” discusses environmental requirements,

safety recommendations, and describes the various ports and how to prepare for
connections between networks and ports.

• Chapter 3, “Installing the Router,” includes basic installation information and discusses

making connections to your LAN, WAN, and console terminal.

• Chapter 4, “Configuring the Router,” discusses how to configure your router using the

prompt-driven System Configuration Dialog, configuration mode, or AutoInstall. This
chapter also provides some basic information about how to use the Cisco IOS software.

• Appendix A, “Troubleshooting the Router,”discusses how to isolate problems and read

the LEDs.

• Appendix B, “Maintaining the Router,” discusses selected maintenance procedures.

• Appendix C, “Cable Specifications,” provides pinouts for the router ports and cables.

Conventions

This publication uses the following conventions to convey instructions and information.
Command descriptions use these conventions:

• Commands and keywords are in boldface font.

• Variables for which you supply values are in italic font.

• Elements in square brackets ([ ]) are optional.

• Alternative but required keywords are grouped in braces ({ }) and are separated by

vertical bars ( | ).

xvi Router Installation and Configuration Guide

Conventions

Examples use these conventions:

• Terminal sessions and information the system displays are in screen font.

• Information you enter is in boldface screen font.

• Nonprinting characters are in angle brackets (< >).

• Default responses to system prompts are in square brackets ([ ]).

Note Meansreadertake note. Notes contain helpfulsuggestionsor references to materials

not contained in this manual.

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

action described in the paragraph.

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

result in equipment damage or loss of data.

Warning This warning symbol means danger. You are in a situation that could cause

bodily injury. Before you work on any equipment, you must be aware of the hazards
involved with electrical circuitry and familiar with standard practices for preventing
accidents. (To see translated versions of this warning, refer to the Regulatory Compliance
and Safety Information document that accompanied your router.)

About This Guide xvii

Conventions

xviii Router Installation and Configuration Guide

CHAPTER

1

Overview of the Router

Table 1-1 lists the router models discussed in this publication and provides a summary of
the interfaces supported on each model. These router models are similar in functionality,
but differ in the number of interfaces supported.

Table 1-1 Summary of Router Interfaces

2

BRI

3

Model

Cisco 2501/

Ethernet

1

AUI

(DB-15)

1–2–

Token Ring
(DB-9)

CPA2501
Cisco 2502/

–12–

CPA2502
Cisco 2503/

1–21

CPA2503
Cisco 2504/

–121

CPA2504
Cisco 2513/

112–

CPA2513
Cisco 2514/

2–2–

CPA2514
Cisco 2515

1. AUI = attachment unit interface.

2. ISDN = Integrated Services Digital Network.

3. BRI = Basic Rate Interface.

4. A CPA2515 model is not available.

4

–22–

Serial
(DB-60)

ISDN
(RJ-45)

Overview of the Router 1-1

Hardware Features

Note Throughout the remainder of the publication, one model number will be used in text

references. For example, references to the model 2501 router will apply to both the
Cisco 2501 and CPA2501 routers.

Hardware Features

In addition to the interfaces listed in Table 1-1, the routers include the following hardware
features:

• Dynamic random-access memory (DRAM) for main memory and shared memory

• Nonvolatile random-access memory (NVRAM) for storing configuration information

• Flash memory for running the Cisco IOS software

• EIA/TIA-232 console port for local system access using a console terminal

• EIA/TIA-232 auxiliary port for remote system access using a modem

Note EIA/TIA-232 and EIA/TIA-449 were known as recommended standards RS-232

and RS-449 before their acceptance as standards by the Electronic Industries Association
(EIA) and Telecommunications Industry Association (TIA).

Figure 1-1 to Figure 1-7 show the rear panels of the router models discussed in this
publication.

1-2 Router Installation and Configuration Guide

Figure 1-1 Model 2501 Router Rear Panel

Hardware Features

Ethernet
AUI LED

Ethernet
AUI port

(DB-15)

Synchronous

serial LEDs

Synchronous

serial ports

(DB-60)

System

OK LED

Console

port (RJ-45)

Auxiliary port

(RJ-45)

Figure 1-2 Model 2502 Router Rear Panel

Token Ring

LED

Synchronous

serial LEDs

System

OK LED

On/off
switch

H4262

Power

H6585

Token Ring

port (DB-9)

serial ports

(DB-60)

Console

port (RJ-45)

Auxiliary port

(RJ-45)

On/off
switch

PowerSynchronous

Overview of the Router 1-3

Hardware Features

Figure 1-3 Model 2503 Router Rear Panel

System

OK LED

port

Auxiliary port

(RJ-45)

Ethernet
AUI port

(DB-15)

Ethernet
AUI LED

Synchronous

serial LEDs

serial ports

(DB-60)

ISDN

BRI LED

Console

(RJ-45)

ISDN

BRI port

(RJ-45)

Figure 1-4 Model 2504 Router Rear Panel

Token Ring

LED

Synchronous

serial LEDs

ISDN

BRI LED

System

OK LED

On/off

switch

H6586

PowerSynchronous

H6587

Token Ring

port (DB-9)

Synchronous

1-4 Router Installation and Configuration Guide

serial ports

(DB-60)

Console

ISDN

BRI port

(RJ-45)

port

(RJ-45)

On/off
switch

Auxiliary port

(RJ-45)

Power

Figure 1-5 Model 2513 Router Rear Panel

Hardware Features

Token Ring

LED

TOKEN RING

Token Ring

port (DB-9)

Ethernet

AUI LEDs

Ethernet
AUI LED

Ethernet
AUI port

(DB-15)

Synchronous

serial LEDs

Synchronous

serial ports

(DB-60)

Console port

(RJ-45)

System

OK LED

Auxiliary port

(RJ-45)

Figure 1-6 Model 2514 Router Rear Panel

Synchronous

serial LEDs

System

OK LED

On/off

switch

H6588

Power

H6589

Ethernet

AUI ports

(DB-15)

Synchronous

serial ports

(DB-60)

Console

port (RJ-45)

Auxiliary port

(RJ-45)

On/off
switch

Power

Overview of the Router 1-5

System Specifications

Figure 1-7 Model 2515 Router Rear Panel

Token Ring

LEDs

Token Ring

ports (DB-9)

Synchronous

serial LEDs

Synchronous

serial ports

(DB-60)

System Specifications

The system specifications of the routers are listed in Table 1-2.

Table 1-2 System Specifications
Description Specification

Dimensions (H x W x D) 1.75 x 17.5 x 10.56 in. (4.44 x 44.45 x 26.82 cm),

Weight 10 lb (4.5 kg)
Input voltage, AC power supply

Current
Frequency
Power dissipation

Input voltage, DC power supply
Current
Power dissipation

Processor 20-MHz Motorola 68EC030

System

OK LED

Console

port (RJ-45)

Auxiliary port

(RJ-45)

On/off
switch

one rack unit

100 to 240 VAC

1.2 to 0.6A
50/60 Hz
40W (maximum), 135.5 Btus

40W, 40 to 72 VDC

1.5 to 1.0A
40W (maximum), 135.5 Btus/hr

Power

H6590

1

/hr

1-6 Router Installation and Configuration Guide

Obtaining Service and Support

Table 1-2 System Specifications (Continued)
Description Specification

Interfaces See Table 1-1 for a list of interfaces supported on each

router model.

2

• Ethernet AUI (IEEE

802.3) (DB-15)

• Token Ring (IEEE 802.5) (DB-9)

3

• Synchronous serial

• ISDN BRI (RJ-45)

(DB-60)

4

• Console (RJ-45)

• Auxiliary (RJ-45)

Operating environment 32 to 104°F (0 to 40°C)
Nonoperating temperature –40 to 185°F (–40 to 85°C)
Operating humidity 5 to 95%, noncondensing
Noise level 34 dBa @ 3 ft (0.914 m)
Regulatory compliance FCC Class A and Canadian DOC Class A

For more regulatory information, refer to the

Regulatory Compliance and Safety Information

document that accompanied your router.

1. Btus = British thermal units.

2. IEEE = Institute of Electrical and Electronic Engineers.

3. The synchronous serial interface supports the following standards in data terminal equipment (DTE) and
data communications equipment (DCE) mode: EIA/TIA-232, EIA/TIA-449, V.35, and X.21. The
EIA-530 standard is supported in DTE mode only.

4. External network terminal 1 (NT1) device required.

Obtaining Service and Support

For service and support for a product purchased from a reseller, contact the reseller.
Resellers offer a wide variety of Cisco service and support programs, which are described
in the information packet that shipped with your chassis.

Overview of the Router 1-7

Cisco Connection Online

Note If you purchased your product from a reseller, you can access Cisco Connection

Online (CCO) as a guest. CCO is Cisco Systems’ primary , real-time support channel.Your
reseller offers programs that include direct access to CCO’s services.

For service and support for a product purchased directly from Cisco, use CCO.

Cisco Connection Online

CCO is Cisco Systems’ primary, real-time support channel. SMARTnet customers and
partners can self-register on CCO to obtain additional content and services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and
value-added services to Cisco’s customers and business partners. CCO services include
product information, software updates, release notes, technical tips, the Bug Navigator,
configuration notes, brochures, descriptions of service offerings, and download access to
public and authorized files.

CCO serves a wide variety of users through two interfaces that are updated and enhanced
simultaneously—a character-based version and a multimedia version that resides on the
World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit,
Xmodem, FTP, and Internet e-mail, and is excellent for quick access to information over
lower bandwidths. The WWW version of CCO provides richly formatted documents with
photographs, figures, graphics, and video, as well as hyperlinks to related information.

You can access CCO in the following ways:

• WWW: http://www.cisco.com.

• WWW: http://www-europe.cisco.com.

• WWW: http://www-china.cisco.com.

• Telnet: cco.cisco.com.

• Modem: From North America, 408 526-8070; from Europe, 33 1 64 46 40 82. Use the

following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and
baud rates up to 14.4 kbps.

1-8 Router Installation and Configuration Guide

For a copy of CCO’ s Frequently Asked Questions (F A Q), contact [e-mail]. For
additional information, contact [e-mail].

Note If you need technical assistance with a Cisco product that is under warranty or

covered by a Cisco maintenance contract, contact Cisco’s Technical Assistance Center
(TAC) at 800 553-2447, 408 526-7209, or [e-mail].

Please use CCO to obtain general information about Cisco Systems, Cisco products, or
upgrades. If CCO is not accessible, contact 800 553-6387, 408 526-7208, or
[e-mail].

Ordering Documentation

Documentation for Cisco products is available in three forms: on a CD-ROM, printed
books, and on the World Wide Web. You have the option of subscribing to the
documentation CD through an update service. Or you can order printed documentation at
an additional cost. Refer to the information packet included with the router for detailed
ordering information. You can also access Cisco documentation on the World Wide Web
URL http://www.cisco.com.

Ordering Documentation

Overview of the Router 1-9

Ordering Documentation

1-10 Router Installation and Configuration Guide

Preparing to Install the Router

This chapter describes important information to consider before you begin to install the
router, and includes the following sections:

• Safety Recommendations

• General Site Requirements

• Preparing to Connect to a Network

• Where to Go Next

Safety Recommendations

Follow these guidelines to ensure general safety:

CHAPTER

2

• Keep the chassis area clear and dust-free during and after installation.

• Put the removed chassis cover in a safe place.

• Keep tools away from walk areas where you and others could fall over them.

• Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf

and roll up your sleeves.

• W ear safety glasses if you are working under an y conditions that might be hazardous to

your eyes.

• Do not perform any action that creates a potential hazard to people or makes the

equipment unsafe.

Preparing to Install the Router 2-1

Safety Recommendations

Warning Ultimate disposal of this product should be handled according to all national

laws and regulations. (To see translated versions of this warning, refer to the Regulatory
Compliance and Safety Information document that accompanied your router.)

Maintaining Safety with Electricity

Follow these guidelines when working on equipment powered by electricity.

Warning Before working on equipment that is connected to po wer lines, remo ve jewelry

(including rings, necklaces, and watches). Metal objects will heat up when connected to
power and ground and can cause serious burns or can weld the metal object to the terminals.
(T o see translated v ersions of this w arning, refer to theRegulatory Compliance and Safety
Information document that accompanied your router.)

• Locate the emergency power OFF switch for the room in which you are w orking. Then,

if an electrical accident occurs, you can act quickly to turn OFF the power.

• Power OFF the router and unplug the power cord before doing the following:

— Installing or removing a chassis
— Working near power supplies

Warning Before working on a chassis or working near po wer supplies, unplug the power

cord on AC units; disconnect the power at the circuit break er on DC units. (T o see translated
versions of this warning, refer to the Regulatory Compliance and Safety Information
document that accompanied your router.)

Warning Do not touch the power supply when the power cord is connected. For systems

with a power switch, line voltages are present within the po wer supply even when the po wer
switch is OFF and the power cord is connected. For systems without a power switch, line
voltages are present within the power supply when the power cord is connected. (To see
translated versions of this warning, refer to the Regulatory Compliance and Safety
Information document that accompanied your router.)

2-2 Router Installation and Configuration Guide

Safety Recommendations

• Do not work alone if potentially hazardous conditions exist.

• Never assume that power is disconnected from a circuit. Always check.

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

source. (T o see translated versions of this warning, refer to theRegulatory Compliance and
Safety Information document that accompanied your router.)

• Look carefully for possible hazards in your work area, such as moist floors, ungrounded

power extension cables, frayed power cords, and missing safety grounds.

• If an electrical accident occurs, proceed as follows:

— Use caution; do not become a victim yourself.
— Turn OFF power to the system.
— If possible, send another person to get medical aid. Otherwise, assess the condition

of the victim and then call for help.

— Determine if the person needs rescue breathing or external cardiac compressions;

then take appropriate action.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It
occurs when electronic components are improperly handled and can result in complete or
intermittent failures.

Always follow ESD-prevention procedures when removing and replacing components.
Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive
wrist strap, ensuring that it makes good skin contact. Connect the clip to an unpainted
surface of the chassis frame to safely channel unwanted ESD voltages to ground. To
properly guard against ESD damage and shocks, the wrist strap and cord must operate
effectively. If no wrist strap is available, ground yourself by touching the metal part of the
chassis.

Preparing to Install the Router 2-3

General Site Requirements

Caution For safety, periodically check the resistance value of the antistatic strap, which

should be between 1 to 10 megohms (Mohms).

General Site Requirements

This section describes the requirements your site must meet for safe installation and
operation of your system. Ensure that your site is properly prepared before beginning
installation.

Site Environment

The router can be placed on a desktop or mounted in a rack or on a wall. The location of
the chassis and the layout of your equipment rack or wiring room are extremely important
for proper system operation. Equipment placed too close together, inadequate ventilation,
and inaccessible panels can cause system malfunctions and shutdowns, and can make
system maintenance difficult.

When planning your site layout and equipment locations, remember the precautions
described in the next section, “Preventive Site Configuration” to help avoid equipment
failures and reduce the possibility of environmentally caused shutdowns. If you are
experiencing shutdowns or unusually high errors with your existing equipment, these
precautions may help you isolate the cause of failures and prevent future problems.

Preventive Site Configuration

The following precautions will help you plan an acceptable operating en vironment for your
router and will help you avoid environmentally caused equipment failures.

• Electrical equipment generates heat. Ambient air temperature might not be adequate to

cool equipment to acceptable operating temperatures without adequate circulation.
Ensure that the room in which you operate your system has adequate air circulation.

• Always follow the ESD-prevention procedures described in the section “Preventing

Electrostatic Discharge Damage” earlier in this chapter to avoid damage to equipment.
Damage from static discharge can cause immediate or intermittent equipment failure.

2-4 Router Installation and Configuration Guide

• Ensure that the chassis cover is secure. The chassis is designed to allow cooling air to

flow effectively within it. An open chassis allows air leaks, which may interrupt and
redirect the flow of cooling air from internal components.

Configuring Equipment Racks

The following information will help you plan an acceptable equipment rack configuration.

• Enclosed racks must have adequate ventilation. Ensure that the rack is not overly

congested because each unit generates heat. An enclosed rack should have louvered
sides and a fan to provide cooling air.

• When mounting a chassis in an open rack, ensure that the rack frame does not block the

intake or the exhaust ports. If the chassis is installed on slides, check the position of the
chassis when it is seated all the way into the rack.

• In an enclosed rack with a ventilation fan in the top, excessive heat generated by

equipment near the bottom of the rack can be drawn upward and into the intake ports of
the equipment above it in the rack. Ensure that you provide adequate ventilation for
equipment at the bottom of the rack.

• Baffles can help to isolate exhaust air from intake air, which also helps to draw cooling

air through the chassis. The best placement of the baffles depends on the airflow patterns
in the rack, which are found by experimenting with different arrangements.

General Site Requirements

Power Supply Considerations

Check the power at your site to ensure that you are receiving “clean” po wer (free of spikes
and noise). Install a power conditioner if necessary.

Warning The device is designed to work with TN power systems. (To see translated

versions of this warning, refer to the Regulatory Compliance and Safety Information
document that accompanied your router.)

Preparing to Install the Router 2-5

Preparing to Connect to a Network

The router power supply includes the following features:

• Autoselects either 110V or 220V operation.

• All units include a 6-foot (1.8-meter) electrical power cord. (A label near the power cord

indicates the correct voltage, frequency, current draw, and power dissipation for the
unit.)

Warning This product relies on the building’s installation for short-circuit (overcurrent)

protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S.
(240 VAC, 10A international) is used on the phase conductors (all current-carrying
conductors). (T o see translated versions of this warning, refer to theRegulatory Compliance
and Safety Information document that accompanied your router.)

Preparing to Connect to a Network

When setting up your router, consider distance limitations and potential electromagnetic
interference (EMI) as defined by the EIA.

Warning The Ethernet, Token Ring, serial, console, and auxiliary ports contain safety

extra-low voltage (SELV) circuits. BRI circuits are treated lik e telephone-network v oltage
(TNV) circuits. Avoid connecting SELV circuits to TNV circuits. (To see translated
versions of this warning, refer to the Regulatory Compliance and Safety Information
document that accompanied your router.)

2-6 Router Installation and Configuration Guide

ISDN Connections

Use a BRI cable (not included) to connect the router directly to an ISDN. (See Table 2-1.)

Warning Network hazardous voltages are present in the BRI cable. If you detach the BRI

cable, detach the end away from the router first to avoid possible electric shock. Network
hazardous voltages also are present on the system card in the area of the BRI port (RJ-45
connector), regardless of when power is turned OFF. (To see translated versions of this
warning, refer to the Regulatory Compliance and Safety Information document that
accompanied your router.)

Warning The ISDN connection is regarded as a source of voltage that should be

inaccessible to user contact. Do not attempt to tamper with or open any public telephone
operator (PTO)-provided equipment or connection hardware. Any hardwired connection
(other than by a nonremovable, connect-one-time-only plug) must be made only by PTO
staff or suitably trained engineers. (To see translated versions of this warning, refer to the
Regulatory Compliance and Safety Information document that accompanied your router.)

Preparing to Connect to a Network

T able 2-1 lists the specifications for ISDN BRI cables. Refer to the section “ISDN BRI Port
and Cable Pinouts” in the appendix “Cable Specifications” for pinouts.

Table 2-1 ISDN BRI Cable Specifications
Specification High-Capacitance Cable Low-Capacitance Cable

Resistance (at 96 kHz) 160 ohms/km 160 ohms/km

1

Capacitance (at 1 kHz) 120 nF
Impedance (96 kHz) 75 ohms 150 ohms
Wire diameter 0.024 in. (0.6 mm) 0.024 in. (0.6 mm)
Distance limitation 32.8 ft (10 m) 32.8 ft (10 m)

1. nF = nanoFarad.

/km 30 nF/km

Preparing to Install the Router 2-7

Preparing to Connect to a Network

Synchronous Serial Connections

Before you connect a device to the synchronous serial port (labeled “SERIAL”), you will
need to know the following:

• The type of device, DTE or DCE, you are connecting to the synchronous serial

interface.

• The type of connector, male or female, required to connect to the device.

• The signaling standard required by the device.

DTE or DCE

A device that communicates over a synchronous serial interface is either a DTE or DCE
device. A DCE device provides a clock signal that paces the communications between the
device and the router . A DTE device does not provide a clock signal. DTE devices usually
connect to DCE devices. The documentation that came with the device should indicate
whether it is a DTE or DCE device. (Some devices ha ve a jumper to select either mode.) If
you cannot find the information in the documentation, refer to T able 2-2 to help you select
the proper device type.

Table 2-2 Typical DTE and DCE Devices

Device Type Gender

DTE Male

DCE Female

1. If pins protrude from the base of the connector, the
connector is male.

2. If the connector has holes to accept pins, the connector is
female.

3. CSU/DSU = Channel service unit/data service unit.

2-8 Router Installation and Configuration Guide

1

2

Typical
Devices

Terminal
PC
Router

Modem
CSU/DSU
Multiplexer

3

Speed and Distance Limitations

Serial signals can travel a limited distance at any given bit rate; generally, the slower the
data rate, the greater the distance. All serial signals are subject to distance limits, beyond
which a signal degrades significantly or is completely lost.

T able 2-3 lists the maximum speeds and distances for EIA/TIA-232 signals. This signaling
standard supports unbalanced circuits at signal speeds up to 64 kbps.

Table 2-3 EIA/TIA-232 Speed and Distance Limitations

Preparing to Connect to a Network

Data Rate
(Baud)

2400 200 60
4800 100 30
9600 50 15
19200 50 15
38400 50 15
64000 25 7.6

Distance
(Feet)

Distance
(Meters)

Balanced drivers allow EIA/TIA-449 signals to travel greater distances than
the EIA/TIA-232 signals. Table 2-4 lists the maximum speeds and distances for
EIA/TIA-449, V.35, X.21, and EIA-530 signals.

Table 2-4 EIA/TIA-449, V.35, X.21, and EIA-530 Speed and Distance

Limitations

Data Rate
(Baud)

2400 4,100 1,250
4800 2,050 625
9600 1,025 312
19200 513 156

Distance
(Feet)

Distance
(Meters)

Preparing to Install the Router 2-9

Preparing to Connect to a Network

Table 2-4 EIA/TIA-449, V.35, X.21, and EIA-530 Speed and Distance

Limitations (Continued)

Data Rate
(Baud)

38400 256 78
56000 102 31

Caution The EIA/TIA-449 and V.35 interfaces support data rates up to 2.048 Mbps.

Exceeding this maximum could result in loss of data and is not recommended.

Signaling Standards

The synchronous serial port supports the following signaling standards: EIA/TIA-232,
EIA/TIA-449, V.35, X.21, and EIA-530. You can order a DB-60 shielded serial transition
cable that has the appropriate connector for the standard you specify. The router end of the
shielded serial transition cable has a DB-60 connector, which connects to the serial port on
the rear panel of the router. The other end of the serial transition cable is a v ailable with the
connector appropriate for the standard you specify. The documentation for the device you
want to connect should indicate the standard used for that device. The synchronous serial
port can be configured as DTE or DCE (except EIA-530, which is DTE only), depending
on the attached cable.

Note All serial ports configured as DTE require external clocking from a CSU/DSU or

other DCE device.

Distance
(Feet)

Distance
(Meters)

Figure 2-1 shows the serial transition cables you can connect to the serial port on the rear
panel of the router.

2-10 Router Installation and Configuration Guide

Figure 2-1 Serial Transition Cables

Router connections

Preparing to Connect to a Network

EIA/TIA-232 EIA-530

EIA/TIA-449 V.35 X.21

Network connections at the modem or CSU/DSU

Although attempting to manufacture your own serial cables is not recommended (because
of the small size of the pins on the DB-60 serial connector), cable pinouts are provided in
the appendix “Cable Specifications.” To order a cable, refer to the section “Obtaining
Service and Support” in the “Overview of the Router” chapter.

Preparing to Install the Router 2-11

H2485

Preparing to Connect to a Network

EIA/TIA-232 Connections

The EIA/TIA-232 standard supports unbalanced circuits at signal speeds up to 64 kbps.
The serial port (labeled “SERIAL”) supports synchronous connections. The console and
auxiliary ports also use an EIA/TIA-232 connection; however, the console and auxiliary
ports support asynchronous connections.

The network end of the EIA/TIA-232 serial transition cable (not included) provides a
DB-25 connector, as shown in Figure 2-2. The end that connects to the serial port on the
rear panel of the router has a DB-60 connector. EIA/TIA-232 serial transition cables are
available with a DB-25 plug or receptacle in either DTE or DCE mode. To order a cable,
refer to the section “Obtaining Service and Support” in the “Overview of the Router”
chapter.

Figure 2-2 EIA/TIA-232 Serial Transition Cable Connectors, Network End

DTE

EIA/TIA-449 Connections

The EIA/TIA-449 standard, which supports balanced and unbalanced transmissions, is a
faster (up to 2 Mbps) version of the EIA/TIA-232 standard that provides more functions
and supports transmissions over greater distances.

The EIA/TIA-449 standard was intended to replace the EIA/TIA-232 standard, but it was
not widely adopted primarily because of the large installed base of DB-25 hardware and
because of the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number
of connections possible (fewer than possible with the smaller, 25-pin EIA/TIA-232
connector).

2-12 Router Installation and Configuration Guide

DCE

H1343a

Preparing to Connect to a Network

The network end of the EIA/TIA-449 serial transition cable (not included) provides a
DB-37 connector, as shown in Figure 2-3. The end that connects to the serial port on the
rear panel of the router has a DB-60 connector. EIA/TIA-449 serial transition cables are
available with a DB-37 plug or receptacle in either DTE or DCE mode. To order a cable,
refer to the section “Obtaining Service and Support” in the “Overview of the Router”
chapter.

Figure 2-3 EIA/TIA-449 Serial Transition Cable Connectors, Network End

DTE

V.35 Connections

The V.35 standard is recommended for speeds up to 48 kbps, although in practice it is used
successfully at 4 Mbps.

The network end of the V.35 serial transition cable (not included) provides a standard
34-pin Winchester-type connector, as shown in Figure 2-4. The end that connects to the
serial port on the rear panel of the router has a DB-60 connector. V.35 cables are available
with a standard V.35 plug or receptacle in either DTE or DCE mode. To order a cable, refer
to the section “Obtaining Service and Support” in the “Overview of the Router” chapter.

DCE

H1344a

Preparing to Install the Router 2-13

Preparing to Connect to a Network

Figure 2-4 V.35 Serial Transition Cable Connectors, Network End

X.21 Connections

The X.21 connector uses a 15-pin connector for balanced circuits and is commonly used in
the United Kingdom to connect to the public data network. X.21 relocates some of the logic
functions to the DTE and DCE interfaces and, as a result, requires fewer circuits and a
smaller connector than EIA/TIA-232.

The network end of the X.21 serial transition cable (not included) is a standard DB-15
connector, as shown in Figure 2-5. The end that connects to the serial port on the rear panel
of the router has a DB-60 connector. X.21 cables are a vailable with a plug or receptacle in
either DTE or DCE mode. To order a cable, refer to the section “Obtaining Service and
Support” in the “Overview of the Router” chapter.

DTE

DCE

H1616a

Figure 2-5 X.21 Serial Transition Cable Connectors, Network End

8

15

1

9

2-14 Router Installation and Configuration Guide

DTE

DCE

H1346a

EIA-530 Connections

The EIA-530 standard, which supports balanced transmission, provides the increased
functionality, speed, and distance of EIA/TIA-449 on the smaller, DB-25 connector used
for EIA/TIA-232, instead of the 37-pin connector used for EIA/TIA-449. Like
EIA-TIA-449, EIA-530 refers to the electrical specifications of EIA/TIA-422 and
EIA/TIA-423. Although the specification recommends a maximum speed of 2 Mbps,
EIA-530 is used successfully at 4 Mbps or faster speeds over short distances.

The EIA/530 serial transition cable (not included) is available in DTE mode only. The
network end of the EIA-530 adapter cable is a standard DB-25 plug commonly used for
EIA/TIA-232 connections, as shown in Figure 2-6. The end that connects to the serial port
on the rear panel of the router has a DB-60 connector. To order a cable, refer to the section
“Obtaining Service and Support” in the “Overview of the Router” chapter.

Figure 2-6 EIA-530 Serial Transition Cable Connector, Network End

Preparing to Connect to a Network

Ethernet Connections

The IEEE has established Ethernet as standard 802.3. The most common Ethernet
implementations are as follows:

• 10Base5 (AUI)—Ethernet on thick coaxial cable, also known as thick Ethernet. The

maximum segment distance is 1,640 feet (500 meters).

• 10Base2 (Thinnet)—Ethernet on thin coaxial cable, also known as thin Ethernet. The

maximum segment distance is 607 feet (185 meters).

• 10BaseT—Ethernet on unshielded twisted-pair (UTP) cable. The maximum segment

distance is 328 feet (100 meters). UTP cables look like the cables used for ordinary
telephones; however , UTP cables meet certain electrical standards that telephone cables
do not.

DTE

H1615a

Preparing to Install the Router 2-15

Preparing to Connect to a Network

Ethernet model routers include an Ethernet AUI interface, which operates at speeds up to
10 Mbps.

The cables and transceivers required to connect the router to an Ethernet network are not
included. For ordering information, refer to the section “Obtaining Service and Support” in
the “Overview of the Router” chapter.

Token Ring Connections

The IEEE has established Token Ring as standard 802.5. The distance limitations for the
IEEE 802.5 specification indicate a maximum segment distance of 328 feet (100 meters)
for UTP cabling. The distance limitation is 1,640 feet (500 meters) for shielded twisted-pair
(STP) cabling.

T oken Ring can operate at two dif ferent ring speeds: 4 and 16 Mbps. All devices on the ring
must agree on the operating speed.

Use a T ok en Ring lobe cable to connect the router to a media attachment unit (MAU). The
lobe cable and MAU are not included with the router . Refer to the section “Token Ring Port
Pinouts” in the appendix “Cable Specifications” for the Token Ring port pinouts.

Console and Auxiliary Port Connections

Y our router includes an asynchronous serial console and an auxiliary port. The console and
auxiliary ports provide access to the router either locally (with a console terminal) or
remotely (with a modem). This section discusses important cabling information to consider
before connecting a console terminal (an ASCII terminal or PC running terminal emulation
software) to the console port or modem to the auxiliary port.

The main difference between the console and auxiliary ports is that the auxiliary port
supports hardware flow control and the console port does not. Flow control paces the
transmission of data between a sending device and a receiving de vice. Flow control ensures
that the receiving device can absorb the data sent to it before the sending de vice sends more.
When the buffers on the receiving device are full, a message is sent to the sending device
to suspend transmission until the data in the buffers has been processed. Because the
auxiliary port supports flow control, it is ideal for use with the high-speed transmissions of
a modem. Console terminals transmit at slower speeds than modems; therefore, the console
port is ideal for use with console terminals.

2-16 Router Installation and Configuration Guide

Console Port Connections

Y our router includes an EIA/TIA-232 asynchronous serial console port (RJ-45). Cables and
adapters to connect a console terminal (an ASCII terminal or PC running terminal
emulation software) to the console port are included. To connect an ASCII terminal to the
console port, use the RJ-45-to-RJ-45 roll-over cable (looks like a telephone cable) with the
female RJ-45-to-DB-25 adapter (labeled “TERMINAL”). To connect a PC running
terminal emulation software to the console port, use the RJ-45-to-RJ-45 roll-over cable
with the female RJ-45-to-DB-9 adapter (labeled “TERMINAL”). The default parameters
for the console port are 9600 baud, 8 data bits, no parity, and 2 stop bits. The console port
does not support hardware flow control. For detailed information about installing a console
terminal, see the section “Connecting to the Console Port” in the chapter “Installing the
Router.” See the appendix “Cable Specifications” for cable and port pinouts.

Auxiliary Port Connections

Your router includes an EIA/TIA-232 asynchronous serial auxiliary port (RJ-45) that
supports hardware flow control. A cable and an adapter to connect a modem to the auxiliary
port are included. To connect a modem to the auxiliary port, use the RJ-45-to-RJ-45
roll-over cable (looks like a telephone cable) with the male RJ-45-to-DB-25 adapter
(labeled “MODEM”). For detailed information about connecting devices to the auxiliary
port, see the section “Connecting a Modem to the Auxiliary Port” in the chapter “Installing
the Router.” See the appendix “Cable Specifications” for cable and port pinouts.

Where to Go Next

Where to Go Next

Proceed to the next chapter, “Installing the Router,” for installation instructions.

Preparing to Install the Router 2-17

Where to Go Next

2-18 Router Installation and Configuration Guide

CHAPTER

3

Installing the Router

This chapter guides you through the installation of the routers and includes the following
sections:

• Required Tools and Equipment

• Setting Up the Chassis

• Connecting the DC Power Supply

• Connecting to a Network

• Connecting the Console Terminal and Modem

• What to Do after Installing the Router Hardware

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

equipment. (T o see translated versions of this warning, refer to theRegulatory Compliance
and Safety Information document that accompanied your router.)

Installing the Router 3-1

Required Tools and Equipment

Required Tools and Equipment

Installation requires some tools and equipment that are not provided as standard equipment
with the router. Following are the tools and parts required to install the router:

• Flat-blade screwdrivers: small, 3/16-inch (0.476 cm) and medium, 1/4-inch (0.625 cm).

• ESD-preventive wrist strap.

• Screws to secure the rack-mount brackets to the router.

• Cables for connection to the WAN and LAN ports:

— Ethernet A UI cable or Ethernet transcei v er for connection to the Ethernet A UI port.
— Token Ring lobe cable for connection to the Token Ring port.
— Serial transition cable for connection to the synchronous serial port .
— Cable for connection to the ISDN BRI port.

Note For cable ordering information, refer to the section “Obtaining Service and Support”

in the “Overview of the Router” chapter.

• Ethernet 10BaseT hub or PC with a network interface card for connection to the

Ethernet AUI (LAN) port.

• Token Ring MAU for connection to the Token Ring (LAN) port.

• CSU/DSU or other DCE device for connection to the synchronous serial interface.

• NT1 device for ISDN BRI WAN connections, if not supplied by your service provider.

• Console terminal (an ASCII terminal or a PC running terminal emulation software)

configured for 9600 baud, 8 data bits, no parity, and 2 stop bits. A terminal is required
unless you are using the AutoInstall procedure. See the section “Connecting the
Console Terminal and Modem” later in this chapter for instructions on connecting a
console terminal.

• Modem for connection to the auxiliary port for remote administrative access (optional).

3-2 Router Installation and Configuration Guide

Setting Up the Chassis

You can set the chassis on a desktop, install it in a rack, or mount it on a wall or other flat
surface. Use the procedure in this section that best meets the needs of your network. The
sections are as follows:

• Setting the Chassis on a Desktop

• Rack-Mounting the Chassis

• Wall-Mounting the Chassis

Setting the Chassis on a Desktop

Before setting the router on a desktop, shelf, or other flat, secure surface, perform the
following steps to install the rubber feet:

Step 1 Locate the rubber feet on the black adhesive strip that shipped with the chassis.

(See Figure 3-1.)

Figure 3-1 Identifying the Rubber Feet

Setting Up the Chassis

Rubber feet (5)

Black adhesive strip

H4796

Installing the Router 3-3

Setting Up the Chassis

Step 2 Place the router upside down on a smooth, flat surface.
Step 3 Peel off the rubber feet from the black adhesive strip and place them

Figure 3-2 Installing the Rubber Feet

adhesive-side down onto the five round, recessed areas on the bottom of the
chassis. (See Figure 3-2.)

Fan

Step 4

Place the router right-side up on a flat, smooth, secure surface.

Caution Do not place anything on top of the router that weighs more than 10 pounds

(4.5 kg). Excessive weight on top could damage the chassis.

3-4 Router Installation and Configuration Guide

H4795

Rack-Mounting the Chassis

This section describes the procedures for rack-mounting the chassis. The chassis comes
with brackets for use with a 19-inch rack or, if specified in your order, optional larger
brackets for use with a 24-inch rack. The brackets are shown in Figure 3-3.

Figure 3-3 Identifying the Brackets

Setting Up the Chassis

Bracket for use
with a 19-inch rack

Attaching the Brackets

To install the chassis in a rack, attach the brackets in one of the following ways:

• With the front panel forward (see Figure 3-4)

• With the rear panel forward (see Figure 3-5)

• In a center-mount telco rack (see Figure 3-6)

Note The illustrations that follow show how to connect the bracket to one side of the

chassis. The second bracket connects to the opposite side of the chassis.

Bracket for use
with a 24-inch rack

H4201

Installing the Router 3-5

Setting Up the Chassis

Figure 3-4 Bracket Installation—Front Panel Forward

Figure 3-5 Bracket Installation—Rear Panel Forward

24 in.

brackets

19 in.

brackets

H7821

24 in.

brackets

Figure 3-6 Telco Bracket Installation—Rear Panel Forward

3-6 Router Installation and Configuration Guide

19 in.

brackets

H6329

24 in.

brackets

19 in.

brackets

H6330

Installing in a Rack

After the brackets are secured to the chassis, you can rack-mount it. Using the screws you
provide, attach the chassis to the rack as shown in Figure 3-7.

Figure 3-7 Attaching the Chassis to a Rack (Rear Panel Forward Shown)

Setting Up the Chassis

24 in.

brackets

19 in.

brackets

H6331

Wall-Mounting the Chassis

Use the small brackets (for use with a 19-inch rack) to wall-mount the chassis. The small
brackets provide the most stable position for the chassis.

Installing the Router 3-7

Setting Up the Chassis

Take the following steps to wall-mount the chassis:

Step 1 Attach the brackets as shown in Figure 3-8.

Figure 3-8 Attaching the Wall-Mount Brackets

1

Step 2 Attach the chassis assembly to the wall as shown in Figure 3-9, using screws and

Input: 100-240VAC
Freq: 50/60 Hz
Current: 1.2-0.6A
Watts: 40W

0

H1714

anchors that you provide. We recommend the following:

• For the best support of the chassis and cables, attach the brackets so that the

screws align with a vertical wall stud. (See Figure 3-9.) This position will
prevent the chassis from pulling away from the wall when cables are
attached.

• For the best ventilation of the chassis, mount the chassis with the power

supply and fan at the top. Make sure there is clearance between the router and
the wall.

3-8 Router Installation and Configuration Guide

Figure 3-9 Wall-Mounting the Chassis

Setting Up the Chassis

TOKEN RING

H6572

Installing the Router 3-9

Connecting the DC Power Supply

Connecting the DC Power Supply

Some router models offer an optional DC power supply. This section describes the DC
power supply specifications and wiring.

Warning This unit is intended for installation in restricted access areas. A restricted access

area is where access can only be gained by service personnel through the use of a special
tool, lock and key , or other means of security , and is controlled by the authority responsible
for the location. (To see translated versions of the warning, refer to the Regulatory
Compliance and Safety Information document that accompanied your router.)

DC Power Specifications

The DC power supply is intended for use in DC operating environments. Table 3-1 lists the
power supply specifications.

Table 3-1 DC Power Supply Specifications

Design

Description

Power (input) 40W, –40 to –72 VDC
Wire gauge for power connections 14 AWG

1. AWG = American Wire Gauge.

Specification

1

3-10 Router Installation and Configuration Guide

Wiring the DC Power Supply

If you ordered a router with a DC power supply , follo w the directions in this section to wire
the terminal block.

Warning Before performing any of the following procedures, ensure that power is

removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on
the panel board that services the DC circuit, switch the circuit breaker to the OFF position,
and tape the switch handle of the circuit breaker in the OFF position. (To see translated
versions of this warning, refer to the Regulatory Compliance and Safety Information
document that accompanied your router.)

Note This product is intended for installation in restricted access areas and is approved for

use with 14 AWG copper conductors only . The installation must comply with all applicable
codes.

Take the following steps to wire the terminal block:

Connecting the DC Power Supply

Step 1 Attach the appropriate lugs at the wire end of the power supply cord.
Step 2 Wire the DC power supply to the terminal block, as shown in Figure 3-10.

Warning The illustration shows the DC po wer supply terminal block. W ire the DC power

supply using the appropriate lugs at the wiring end, as illustrated. The proper wiring
sequence is ground to ground, positive to positive (line to L), and negative to negative
(neutral to N). Note that the ground wire should always be connected first and disconnected
last. (To see translated versions of this warning, refer to the Regulatory Compliance and
Safety Information document that accompanied your router.)

Installing the Router 3-11

Connecting the DC Power Supply

Figure 3-10 DC Power Supply Connections

Input: –40––72V
Current: 1.5–1.0A
Watts: 40W

Terminal block

On/off
switch

Negative

PositiveGround

Terminal block

H2679

3-12 Router Installation and Configuration Guide

Warning When stranded wiring is required, use approved wiring terminations, such as

closed-loop or spade-type with upturned lugs. These terminations should be the appropriate
size for the wires and should clamp both the insulation and conductor. (To see translated
versions of this warning, refer to the Regulatory Compliance and Safety Information
document that accompanied your router.)

Caution Do not overtorque the terminal block captive thumbscrew or terminal block

contact screws. The recommended torque is 8.2 0.4 inch-lb.

Warning After wiring the DC power supply, remove the tape from the circuit breaker

switch handle and reinstate power by moving the handle of the circuit breaker to the ON
position. (To see translated versions of this warning, refer to the Regulatory Compliance
and Safety Information document that accompanied your router.)

Connecting to a Network

This section explains how to connect the router to your network. The Ethernet or Token
Ring ports are used to connect the router to a LAN. The synchronous serial and ISDN ports
are used to connect the router to a WAN.

Connecting to a Network

The cables required to connect the router to a network are not provided with the router . For
ordering information, refer to the section “Obtaining Service and Support” in the
“Overview of the Router” chapter. For cable pinouts, refer to the appendix “Cable
Specifications.”

Although the illustrations in this section show the model 2513 router, the procedures are
the same for all of the router models.

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

lightning activity. (To see translated versions of this warning, refer to the Regulatory
Compliance and Safety Information document that accompanied your router.)

Installing the Router 3-13

Connecting to a Network

Take the following steps to connect your router to a network:

Step 1 Connect the Ethernet AUI port (DB-15) to an Ethernet transcei ver, as shown in

Note If your Ethernet connection requires jackscrews, remove the slide-latch assembly

from the AUI connector and attach the jackscrews provided.

Figure 3-11 Connecting an Ethernet Transceiver

Figure 3-11. Or connect a transceiver directly to the Ethernet AUI port.

To thin
Ethernet
network

Ethernet

AUI cable

(not supplied)

BNC connector

Ethernet

transceiver

To thin
Ethernet
network

TOKEN RING

Ethernet AUI port

(DB-15)

(with jackscrews

or slide-latch)

H6567

Router

3-14 Router Installation and Configuration Guide

Connecting to a Network

Step 2 Connect the Token Ring port (DB-9) to a MAU, as shown in Figure 3-12. To

ensure agency compliance with electromagnetic emissions requirements (EMI),
ensure that the lobe cable is shielded.

Figure 3-12 Connecting a MAU

Token Ring

lobe cable

(not provided)

TOKEN RING

Token Ring

port (DB-9)

Standard IEEE

802.5 connector

H6568

Router

MAU

Installing the Router 3-15

Connecting to a Network

Step 3 If you will be using AutoInstall to configure the router, connect the synchronous

Figure 3-13 Connecting a CSU/DSU or Other DCE Device

serial port (DB-60) to a CSU/DSU or other DCE device, as shown in
Figure 3-13. If you do not plan to use AutoInstall (or you are not sure what
AutoInstall is) do not connect the W AN cable until after you ha ve configured the
router.

If a WAN cable is connected when you power ON the router for the first time, it
will attempt to run AutoInstall to download a configuration file from a TFTP
server . It can take several minutes for the router to determine that the necessary
files are not in place for AutoInstall to begin. For more information about
AutoInstall, refer to the Cisco IOS configuration guide, which is available on the
documentation CD that accompanied your router.

Note The synchronous serial port supports the following signaling standards:

EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530.

TOKEN RING

Serial transition

cable

EIA/TIA-232, EIA/TIA-449, V.35,

X.21, or EIA-530 connector

Synchronous serial

port (DB-60)

CSU/DSU or

other DCE

3-16 Router Installation and Configuration Guide

H6569

Router

Connecting to a Network

Step 4 Connect the ISDN BRI port (RJ-45) to an NT1 device. (See Figure 3-14.)

Figure 3-14 Connecting an NT1 Device

ISDN BRI port (RJ-45)

Input: 100-240VAC

SERIAL 4 (A/S)

SERIAL 0

SERIAL 5 (A/S)

SERIAL 1

SERIAL 6 (A/S)

SERIAL 2 (A/S)

SERIAL 7 (A/S)

SERIAL 3 (A/S)

SERIAL 8 (A/S)

LINK

PWR

ACT

ETHERNET 0

AUI

10bT

BRI 0

Straight-through
RJ-45-to-RJ-45 cable

SERIAL 9 (A/S)

CONSOLE

AUX

Freq: 50/60HZ
Current: 1.2-0.6 A
Watts: 40W

Router

H6574

NT1 device

S/T interface

Step 5 Connect the power cable to the router and the power source.

Installing the Router 3-17

Connecting the Console Terminal and Modem

Connecting the Console Terminal and Modem

Your router includes asynchronous serial console and auxiliary ports. These ports provide
administrative access to your router either locally (with a console terminal) or remotely
(with a modem).

Connecting to the Console Port

T ake the following steps to connect a terminal (an ASCII terminal or a PC running terminal
emulation software) to the console port on the router:

Step 1 Connect the terminal using the thin, flat, RJ-45-to-RJ-45 roll-over cable (looks

like a telephone cable) and an RJ-45-to-DB-9 or RJ-45-to-DB-25 adapter
(labeled “TERMINAL”) included with the router. (See Figure 3-15.)

Step 2 Configure your terminal or PC terminal emulation software for 9600 baud,

8 data bits, no parity, and 2 stop bits.

3-18 Router Installation and Configuration Guide

Connecting the Console Terminal and Modem

Figure 3-15 Connecting a Console Terminal

TOKEN RING

Console port

connector (RJ-45)

PC

RJ-45 roll-over cable

Router

OK

LAN

I/O
card

AUX SER 0 ETH

H6570

RJ-45-to-DB-25 adapter

Installing the Router 3-19

Connecting the Console Terminal and Modem

Connecting a Modem to the Auxiliary Port

Take the following steps to connect a modem to the auxiliary port on the router:

Step 1 Connect a modem to the auxiliary port using the thin, flat, RJ-45-to-RJ-45

roll-over cable (looks like a telephone cable) with the RJ-45-to-DB-25 adapter
(labeled “MODEM”) included with the router. (See Figure 3-16.)

Step 2 Make sure that your modem and the auxiliary port on the router are configured

for the same transmission speed (38400 baud is typical) and hardware flow
control with Data Carrier Detect (DCD) and Data Terminal Ready (DTR)
operations.

Warning This equipment is intended to be grounded. Ensure that the host is connected to

earth ground during normal use. (To see translated versions of this warning, refer to the
Regulatory Compliance and Safety Information document that accompanied the router.)

Figure 3-16 Connecting a Modem

TOKEN RING

RJ-45

roll-over

cable

RJ-45-to-DB-25 adapter

(EIA/TIA-232)

connector (RJ-45)

3-20 Router Installation and Configuration Guide

Console port

Modem

H6571

Failsafe/console

management shelf

What to Do after Installing the Router Hardware

What to Do after Installing the Router Hardware

After you have installed the router, connect the power cable to the rear panel of the router
and the power source and then power it ON. (If the router does not power ON, proceed to
the “Troubleshooting the Router” appendix.)

Proceed to the next chapter, “Configuring the Router,” for initial software configuration
information.

Note The Cisco configuration guide and command reference publications provide

additional software configuration information. These publications are available on the
documentation CD that came with your router or you can order printed copies. Refer to the
section “Ordering Documentation” in the chapter “Overview of the Router” for ordering
information.

Installing the Router 3-21

What to Do after Installing the Router Hardware

3-22 Router Installation and Configuration Guide

CHAPTER

4

Configuring the Router

This chapter describes how to configure the routers and contains the following sections:

• Booting the Router for the First Time

• Configuring the Router for the First Time

• Cisco IOS Software Basics

• Configuring ISDN

• Verifying Network Connectivity

• Getting More Information

This chapter provides minimum software configuration information; it is not meant as
comprehensive router configuration instructions. Detailed software configuration
information is available in the Cisco IOS configuration guide and command reference
publications. These publications are available on the documentation CD that came with
your router or you can order printed copies. Refer to the section “Ordering Documentation”
in the chapter “Overview of the Router” for ordering information.

Configuring the Router 4-1

Booting the Router for the First Time

Booting the Router for the First Time

Each time you power on the router, it goes through the following boot sequence:

1 The router goes through power-on self-test diagnostics to verify basic operation of the

CPU, memory, and interfaces.

2 The system bootstrap software (boot image) executes and searches for a valid Cisco IOS

image (router operating system software). The source of the Cisco IOS image (Flash
memory or a Trivial File Transfer Protocol [TFTP] server) is determined by the
configuration register setting. The factory-default setting for the configuration register
is 0x2102, which indicates that the router should attempt to load a Cisco IOS image
from Flash memory.

3 If after five attempts a valid Cisco IOS image is not found in Flash memory, the router

reverts to boot ROM mode (which is used to install or upgrade a Cisco IOS image).

4 If a valid Cisco IOS image is found, then the router searches for a valid configuration

file.

5 If a valid configuration file is not found in NVRAM, the router runs the System

Configuration Dialog so you can configure it manually. For normal router operation,
there must be a valid Cisco IOS image in Flash memory and a configuration file in
NVRAM.

The first time you boot your router, you will need to configure the router interfaces and then
save the configuration to a file in NVRAM.

Configuring the Router for the First Time

You can configure the router using one of the following procedures, which are described in
this section:

• System Configuration Dialog—Recommended if you are not familiar with Cisco IOS

commands.

• Configuration mode—Recommended if you are familiar with Cisco IOS commands.

• AutoInstall—Recommended for automatic installation if another router running

Cisco IOS software is installed on the network. This configuration method must be set
up by someone with experience using Cisco IOS software.

4-2 Router Installation and Configuration Guide

Timesaver Acquire the correct network addresses from your system administrator or

consult your network plan to determine the correct addresses before you begin to configure
the router.

Proceed with the procedure that best fits the needs of your network configuration and
Cisco IOS software experience level. If you will be using configuration mode or
AutoInstall to configure the router, and you would like a quick review of the Cisco IOS
software, refer to the section “Cisco IOS Software Basics” later in this chapter . Otherwise,
proceed with the next section “Using the System Configuration Dialog.”

Using the System Configuration Dialog

If you do not plan to use AutoInstall, make sure all the WAN cables are disconnected from
the router. This will pre v ent the router from attempting to run the AutoInstall process. The
router will attempt to run AutoInstall whenever you power it ON if there is a WAN
connection on both ends and the router does not have a configuration file stored in
NVRAM. It can take several minutes for the router to determine that AutoInstall is not
connected to a remote TCP/IP host.

If your router does not have a configuration (setup) file and you are not using AutoInstall,
the router will automatically start the setup command facility . An interactive dialog called
the System Configuration Dialog appears on the console screen. This dialog helps you
navigate through the configuration process by prompting you for the configuration
information necessary for the router to operate.

Configuring the Router for the First Time

Many prompts in the System Configuration Dialog include default answers, which are
included in square brackets following the question. To accept a default answer, press
Return; otherwise, enter your response.

This section gives an example configuration using the System Configuration Dialog. When
you are configuring your router, respond as appropriate for your network.

At any time during the System Configuration Dialog, you can request help by typing a
question mark (?) at a prompt.

Before proceeding with the System Configuration Dialog, obtain from your system
administrator the node addresses and the number of bits in the subnet field (if applicable)
of the router ports.

Configuring the Router 4-3

Configuring the Router for the First Time

Take the following steps to configure the router using the System Configuration Dialog:

Step 1 Connect a console terminal to the console port on the rear panel of your router,

and then power ON the router. (For more information, refer to the section
“Connecting the Console Terminal and Modem” in the chapter “Installing the
Router.”)

Note The default parameters for the console port are 9600 baud, 8 data bits, no

parity, and 2 stop bits.

After about 30 seconds, information similar to the following is displayed on the
console screen:

Note The messages displayed vary, depending on the interfaces on the rear

panel of the router and the Cisco IOS release and feature set you selected. The
screen displays in this section are for reference only and may not exactly reflect
the screen displays on your console.

System Bootstrap, Version X.X(XXXX) [XXXXX XX], RELEASE SOFTWARE
Copyright (c) 1986-199X by Cisco Systems
2500 processor with 4096 Kbytes of main memory

Notice: NVRAM invalid, possibly due to write erase.

F3: 5797928+162396+258800 at 0x3000060

4-4 Router Installation and Configuration Guide

Configuring the Router for the First Time

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

Cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

Cisco Internetwork Operating System Software
IOS (tm) X000 Software (XXX-X-X), Version XX.X(XXXX) [XXXXX XXX]
Copyright (c) 1986-199X by Cisco Systems, Inc.
Compiled Fri 20-Oct-9X 16:02 by XXXXX
Image text-base: 0x03030FC0, data-base: 0x00001000
Cisco 25XX (68030) processor (revision A) with 4092K/2048K bytes of
memory.
Processor board ID 00000000
Bridging software.
SuperLAT software copyright 1990 by Meridian Technology Corp).
X.25 software, Version X.X, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
Basic Rate ISDN software, Version X.X.
X Ethernet/IEEE 802.3 interface.
2 Serial network interfaces.
1 ISDN Basic Rate interface.
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)

Notice: NVRAM invalid, possibly due to write erase.

--- System Configuration Dialog ---

At any point you may enter a question mark '?' for help.
Refer to the 'Getting Started' Guide for additional 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]:

Configuring the Router 4-5

Configuring the Router for the First Time

Step 2 Press Return or enter yes to begin the configuration process.
Step 3 When the System Configuration Dialog asks whether you want to view the

current interface summary, press Return or enter yes:

First, would you like to see the current interface summary? [yes]:

Any interface listed with OK? value “NO” does not have a valid
configuration

Interface IP-Address OK? Method Status Protocol
Ethernet0 unassigned NO not set up down
BRI0 unassigned NO not set up up
Serial0 unassigned NO not set down down
Serial1 unassigned NO not set down down

Step 4 Configure the global parameters. A typical configuration follows:

Configuring global parameters:

Enter host name [Router]:

Next, you are prompted to enter an enable secret password. There are two types
of privileged-level passwords:

• Enable secret password (a very secure, encrypted password)

• Enable password (a less secure, nonencrypted password)

The enable password is used when the enable secret password does not exist.
For maximum security , be sure the passwords are different. If you enter the same

password for both, the router will accept your entry, but will display a warning
message indicating that you should enter a different password.

Step 5 Enter an enable secret password:

The enable secret is a one-way cryptographic secret used
instead of the enable password when it exists.

Enter enable secret: pail

The enable password is used when there is no enable secret
and when using older software and some boot images.

4-6 Router Installation and Configuration Guide

Configuring the Router for the First Time

Step 6 Enter the enable and virtual terminal passwords:

Enter enable password: shovel
Enter virtual terminal password: vterm1

Step 7 Press Return to accept Simple Network Management Protocol (SNMP)

management, or enter no to refuse it:

Configure SNMP Network Management? [yes]: no

Step 8 In the following example, the router is configured for AppleTalk, Internet

Protocol (IP), and Internetwork Packet Exchange (IPX). Configure the
appropriate protocols for your router:

Configure Vines? [no]:
Configure LAT? [no]:
Configure AppleTalk? [no]: yes

Multizone networks? [no]: yes

Configure DECnet? [no]:
Configure IP? [yes]:

Configure IGRP routing? [yes]:
Your IGRP autonomous system number [1]: 15

Configure CLNS? [no]:
Configure bridging? [no]:
Configure IPX? [no]: yes
Configure XNS? [no]:
Configure Apollo? [no]:

Step 9 If your router includes an ISDN BRI port, enter the ISDN BRI switch type. The

switch type appropriate for the router depends on the ISDN service provider’s
equipment. Table 4-1 lists the ISDN switch types.

Enter ISDN BRI Switch Type [none]: basic-5ess

Configuring the Router 4-7

Configuring the Router for the First Time

Table 4-1 ISDN Switch Types
Country ISDN Switch Type Description

Australia
Europe basic-1tr6 German 1TR6 ISDN switches

Japan ntt Japanese NTT ISDN switches
New Zealand basic-nznet3 New Zealand NET3 switches
North America basic-5ess AT&T basic rate switches

basic-ts013

basic-nwnet3 Norwegian NET3 ISDN switches (phase 1)
basic-net3 NET3 ISDN switches (UK and others)
basic-net5 NET5 switches (UK and Europe)
vn2 French VN2 ISDN switches
vn3 French VN3 ISDN switches

basic-dms100 NT DMS-100 basic rate switches
basic-ni1 National ISDN-1 switches

Australian TS013 switches

Configuring the ISDN BRI Interface

This section describes how to configure the ISDN BRI interface. If your router does not
include an ISDN BRI interface, proceed to the next section, “Configuring Ethernet or T oken
Ring Interfaces.”

The ISDN BRI interface is configured to allow connection to ISDN WANs. Determine
which protocols to support on the ISDN BRI interface and enter the appropriate responses.
In the following example, the system is configured for IP, AppleTalk, and IPX:

Configuring interface BRI0:
Is this interface in use? [yes]
Configure IP on this interface? [yes]
IP address for this interface: 172.16.71.1
Number of bits in subnet field [0]: 8
Class B network is 172.16.0.0, 8 subnet bits; mask is

255.255.255.0

4-8 Router Installation and Configuration Guide

Configure AppleTalk on this interface? [no]: yes
Extended AppleTalk network? [no]: yes
AppleTalk starting cable range [0]: 1
AppleTalk ending cable range [1]: 2
AppleTalk zone name [myzone]:
AppleTalk additional zone name: otherzone
AppleTalk additional zone name:
Configure IPX on this interface? [no]: yes
IPX network number [1]: B000

After you have completed the entire initial router configuration using the System
Configuration Dialog, proceed to the section “Configuring ISDN, ” later in this chapter , for
additional ISDN configuration information.

Configuring Ethernet or Token Ring Interfaces

The Ethernet and Token Ring interfaces are configured to allow connection to a LAN. To
configure the interface parameters, you need to know your Ethernet or T oken Ring interf ace
network addresses.

Take the following steps to configure an Ethernet or Token Ring interface to allow
communication over a LAN:

Configuring the Router for the First Time

Step 1 Press Return or enter yes to configure the LAN interface:

Configuring interface Ethernet0:
Is this interface in use? [yes]:

Step 2 Determine which protocols you want to support on the LAN interface and enter

the appropriate responses. In the following example, the system is configured for
IP, AppleTalk, and IPX:

Configure IP on this interface? [yes]:
IP address for this interface: 172.16.72.1
Number of bits in subnet field [8]: 8
Class B network is 172.16.0.0, 8 subnet bits; mask is

255.255.255.0

Configuring the Router 4-9

Configuring the Router for the First Time

Configure AppleTalk on this interface? [no]: yes
Extended AppleTalk network? [no]: yes
AppleTalk starting cable range [0]: 3
AppleTalk ending cable range [1]: 3
AppleTalk zone name [myzone]:
AppleTalk additional zone name: otherzone
AppleTalk additional zone name:

Configure IPX on this interface? [no]: yes
IPX network number [1]: B001

Step 3 If there is more than one LAN interface on your router, repeat this procedure to

configure the second LAN interface.

Configuring the Synchronous Serial Interfaces

The synchronous serial interfaces are configured to allow connection to WANs. After the
Ethernet or T oken Ring port on your router has been configured, take the follo wing steps to
configure the synchronous serial interfaces:

Step 1 Press Return or enter yes to configure serial port 0:

Configuring interface Serial0:
Is this interface in use? [yes]:

Step 2 Determine which protocols you want on the synchronous serial interface and

enter the appropriate responses. In the following example, the system is
configured for IP, AppleTalk, and IPX:

Configure IP on this interface? [yes]:
Configure IP unnumbered on this interface? [no]:
IP address for this interface: 172.16.73.1
Number of bits in subnet field [8]:
Class B network is 172.16.0.0, 8 subnet bits; mask is

255.255.255.0

Configure AppleTalk on this interface? [no]: yes
Extended AppleTalk network? [yes]:
AppleTalk starting cable range [2]: 4
AppleTalk ending cable range [3]: 4
AppleTalk zone name [myzone]: ZZ Serial
AppleTalk additional zone name:
Configure IPX on this interface? [no]: yes
IPX network number [2]: B002

4-10 Router Installation and Configuration Guide

Configuring the Router for the First Time

Step 3 Configure the second synchronous serial interface, for example, as follows:

Configuring interface Serial1:
Is this interface in use? [yes]:
Configure IP on this interface? [yes]:
Configure IP unnumbered on this interface? [no]:
IP address for this interface: 172.16.74.2
Number of bits in subnet field [8]:
Class B network is 172.16.0.0, 8 subnet bits; mask is

255.255.255.0

Configure AppleTalk on this interface? [no]: yes
AppleTalk starting cable range [3]: 5
AppleTalk ending cable range [4]: 5
AppleTalk zone name [myzone]: ZZ Serial
AppleTalk additional zone name:
Configure IPX on this interface? [no]: yes
IPX network number [3]: B003

Step 4 The configuration you entered is now displayed and you are asked if you want

to use the displayed configuration. If you enter no, you will lose the
configuration information you just entered and you can begin the configuration
again. If you enter yes, the configuration will be entered and saved in the startup
configuration:

Use this configuration? [yes/no]: yes
Building configuration...
Use the enabled mode 'configure' command to modify this
configuration.

Press RETURN to get started!

Proceed to the section “Cisco IOS Software Basics” for more information about the
Cisco IOS software.

Configuring the Router 4-11

Configuring the Router for the First Time

Using Configuration Mode

You can configure the router manually if you do not want to use AutoInstall or the
prompt-driven System Configuration Dialog. Take the following steps to configure the
router manually:

Step 1 Connect a console terminal following the instructions in the section

“Connecting the Console Terminal and Modem” in the chapter “Installing the
Router,” and then power ON the router.

Step 2 When you are prompted to enter the initial dialog, enter no to go into the normal

operating mode of the router:

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

Step 3 After a few seconds you will see the user EXEC prompt (Router>). Enter the

enable command to enter privileged EXEC mode. You can only make
configuration changes in privileged EXEC mode:

Router> enable

The prompt changes to the privileged EXEC prompt:

Router#

Step 4 Enter the configure terminal command at the privileged EXEC prompt to enter

configuration mode:

Router# configure terminal

Y ou can no w enter any changes you want to the configuration. You will probably
want to perform the following tasks:

(a) Assign a host name for the router using the hostname command.
(b) Enter an enable secret password using the enable password command.
(c) Assign addresses to the interfaces using the protocol address command.
(d) Specify which protocols to support on the interfaces.

Refer to the Cisco IOS configuration guide and command reference publications
for more information about the commands you can use to configure the router.

4-12 Router Installation and Configuration Guide

Step 5 When you are finished configuring the router, enter the exit command until you

Step 6 To save the configuration changes to NVRAM, enter the copy running-config

Using AutoInstall

The AutoInstall process is designed to configure the router automatically after connection
to your WAN. In order for AutoInstall to work properly, a Transmission Control
Protocol/Internet Protocol (TCP/IP) host on your network must be preconfigured to provide
the required configuration files. The TCP/IP host may exist anywhere on the network as
long as the following two conditions are maintained:

1 The host must be on the remote side of the router’s synchronous serial connection to the

WAN.

2 User Datagram Protocol (UDP) broadcasts to and from the router and the TCP/IP host

must be enabled.

Configuring the Router for the First Time

return to the privileged EXEC prompt (Router#).

startup-config command at the privileged EXEC prompt.

Router# copy running-config startup-config
********

The router will now boot with the configuration you entered.

This functionality is coordinated by your system administrator at the site where the TCP/IP
host is located. Y ou should not attempt to use AutoInstall unless the required files hav e been
provided on the TCP/IP host. For more information, refer to the Cisco IOS configuration
guide and command reference publications.

Take the following steps to prepare your router for the AutoInstall process:

Step 1 Attach the WAN cable to the router.
Step 2 Power ON the router.

The router will load the operating system image from Flash memory. If the
remote end of the WAN connection is connected and properly configured, the
AutoInstall process will begin.

Configuring the Router 4-13

Cisco IOS Software Basics

Step 3 If AutoInstall completes successfully, enter the copy running-config

startup-config command in privileged EXEC mode to write the configuration
data to the router’s NVRAM:

Router# copy running-config startup-config

Taking this step saves the configuration settings that the AutoInstall process
created to the router’s NVRAM. If you do not do this, the configuration will be
lost the next time you reload the router.

Cisco IOS Software Basics

This section provides you with some basic information about the Cisco IOS software and
includes the following sections:

• Cisco IOS Modes of Operation

• Getting Context-Sensitive Help

• Saving Configuration Changes

Cisco IOS Modes of Operation

The Cisco IOS software provides access to several different command modes. Each
command mode provides a different group of related commands.

For security purposes, the Cisco IOS software provides two le vels of access to commands:
user and privileged. The unpri vileged user mode is called user EXEC mode. The privile ged
mode is called privileged EXEC mode and requires a password. The commands available
in user EXEC mode are a subset of the commands available in privileged EXEC mode.

T able 4-2 describes some of the most commonly used modes, how to enter the modes, and
the resulting prompts. The prompt helps you identify which mode you are in and, therefore,
which commands are available to you.

4-14 Router Installation and Configuration Guide

Cisco IOS Software Basics

Table 4-2 Cisco IOS Operating Modes

Mode of
Operation Usage How to Enter the Mode Prompt

User EXEC User EXEC commands allow you to

Log in. Router>
connect to remote devices, change
terminal settings on a temporary
basis, perform basic tests, and list
system information. The EXEC
commands available at the user lev el
are a subset of those available at the
privileged level.

Privileged EXEC Privileged EXEC commands set

operating parameters. The

From user EXEC mode, enter the

enable EXEC command.

Router#

privileged command set includes
those commands contained in user
EXEC mode, and also the configure
command through which you can
access the remaining command
modes. Privileged EXEC mode also
includes high-level testing
commands, such as debug.

Global
configuration

Global configuration commands
apply to features that affect the
system as a whole.

From global configuration mode,

enter the configure privileged

EXEC command.

Router(config)#

Configuring the Router 4-15

Cisco IOS Software Basics

Table 4-2 Cisco IOS Operating Modes (Continued)

Mode of
Operation Usage How to Enter the Mode Prompt

Interface
configuration

ROM monitor ROM monitor commands are used

1. You can modify the configuration register value using the config-reg configuration command. Refer to the Cisco IOS configuration

guide for more information.

Interface configuration commands
modify the operation of an interface
such as an Ethernet, Token Ring, or
serial port. Many features are
enabled on a per-interface basis.
Interface configuration commands
always follow an interface global
configuration command, which
defines the interface type.

to perform low-level diagnostics.
You can also use the ROM monitor
commands to recover from a system
failure and stop the boot process in a
specific operating environment.

From global configuration mode,

enter the interface type number

command. For example, enter the

interface serial 0 command to

configure the serial 0 interface.

From privileged EXEC mode,

enter the reload EXEC command.

Press Break during the first

60 seconds while the system is

booting.

1

Router(config-if)#

>

Almost every configuration command also has a no form. In general, use the no form to
disable a feature or function. Use the command without the keyword no to reenable a
disabled feature or to enable a feature that is disabled by default. For example, IP routing
is enabled by default. To disable IP routing, enter the no ip routing command and enter
ip routing to reenable it. The Cisco IOS software command reference publication provides
the complete syntax for the configuration commands and describes what the no form of a
command does.

4-16 Router Installation and Configuration Guide

Getting Context-Sensitive Help

In any command mode, you can get a list of available commands by entering a question
mark (?).

Router> ?

T o obtain a list of commands that be gin with a particular character sequence, type in those
characters followed immediately by the question mark (?). Do not include a space. This
form of help is called word help, because it completes a word for you.

Router# co?
configure connect copy

To list keywords or arguments, enter a question mark in place of a keyword or argument.
Include a space before the question mark. This form of help is called command syntax help
because it reminds you which keywords or arguments are applicable based on the
command, keywords, and arguments you have already entered.

Router# configure ?
memory Configure from NV memory
network Configure from a TFTP network host
terminal Configure from the terminal
<cr>

Cisco IOS Software Basics

You can also abbreviate commands and keywords by entering just enough characters to
make the command unique from other commands. For example, you can abbreviate the
show command to sh.

Saving Configuration Changes

Any time you make changes to the router configuration, you must save the changes to
memory because if you do not they will be lost if there is a system reload or power outage.
There are two types of configuration files: the running (current operating) configuration and
the startup configuration. The running configuration is stored in RAM; the startup
configuration is stored in NVRAM.

Configuring the Router 4-17

Configuring ISDN

To display the current running configuration, enter the show running-config command.
Enter the copy running-config startup-config command to save the current running
configuration to the startup configuration file in NVRAM.

Router> enable
Router# copy running-config startup-config

To display the startup configuration, enter the show startup-config command. Enter the
copy startup-config running-config command to write the startup configuration to the

running configuration:

Router> enable
Router# copy startup-config running-config

To erase both configuration files (and start over), enter the write erase and reload
commands:

Router> enable
Router# write erase
Router# reload

Caution This command sequence will erase the entire router configuration in RAM and

NVRAM and reload the router.

Configuring ISDN

This section describes a typical ISDN configuration for one or two B channels. In the
examples that follow, the BRI port is configured for IP routing, Challenge Handshake
Authentication Protocol (CHAP), and Point-to-Point Protocol (PPP) encapsulation.

For your reference, an example configuration follows in the ne xt section, “Example ISDN
Configuration.” You may want to refer to it during this procedure.

4-18 Router Installation and Configuration Guide

Configuring ISDN

Take the following steps to configure the router for a basic ISDN PPP connection on a
single B channel or two B channels, substituting the correct addresses and host names as
appropriate for your network:

Step 1 Enter privileged EXEC mode:

Router> enable
password:

enablepassword

Step 2 Enter the configure terminal command to enter global configuration mode.

Then enter the host name of the current router, the user name of the target router
(the router to which packets will be sent), and the password that the routers will
use for CHAP caller identification. The user name and password are case
sensitive and must match the host name and password of the target router (even
if it is not a Cisco router):

Router# configure terminal
Router (config)# hostname
Router (config)# username

currentrouter
targetrouter

password

abc

Step 3 Enter the isdn switch-type command to configure the ISDN switch type (such

as basic-5ess, basic-dms100, or basic-ni1). Refer to Table 4-1, earlier in this
chapter, for a list of ISDN switch types supported.

Router (config)# isdn switch-type

switch-type

Step 4 Configure the IP address and subnet mask for the LAN interface:

Router (config)# interface
Router (config-if)# ip address

type port_number

ipaddress subnetmask

Step 5 Configure the IP address and subnet mask for the BRI interface:

Router (config-if)# interface bri
Router (config-if)# ip address

port_number

ipaddress subnetmask

Configuring the Router 4-19

Configuring ISDN

Step 6 If you are using an ISDN switch type (such as Basic NI1 or DMS-100) that

requires a service profile identifier (SPID), enter the SPID and optional local
directory number (LDN). The SPID and LDN are assigned by the ISDN service
provider .

The SPID is a number that identifies the service to which you have subscribed.
A SPID is not required for AT&T 5ESS service configured for a point-to-point
connection.

The LDN is an optional seven-digit phone number for the channel.

Router (config-if)# isdn spid1
Router (config-if)# isdn spid2

Step 7 Configure the router for PPP encapsulation and CHAP authentication:

Router (config-if)# encapsulation ppp
Router (config-if)# ppp authentication chap

Step 8 Enter the load-threshold or ppp multilink command to set up a second

SPID_no [LDN]
SPID_no [LDN]

B channel.
For bandwidth on demand, enter the load-threshold command to set the ISDN

load threshold. The load threshold determines the percentage of network load at
which the second ISDN B channel is activated. The v alue ranges from 1 to 255
(100 percent). In the following example, the value of 128 means that when the
first B channel reaches 50 percent of its bandwidth capacity (128 equals
50 percent of 255), the second B channel will activate to assist with the
bandwidth load:

Router (config-if)# dialer load-threshold 128

Alternatively, you can use Multilink PPP to activate a second ISDN line. For
Multilink PPP to work, the router must be running Cisco IOS Release 11.0(3) or
a later release, and both the current router and target router must support
Multilink PPP:

Router (config-if)# ppp multilink

4-20 Router Installation and Configuration Guide

Configuring ISDN

Step 9 Enter the dialer map command to provide the information necessary to

successfully route packets to the target router. Do not use periods or hyphens
when entering the number to dial:

Router (config-if)# dialer map
name

targetrouter_number

Step 10 Enter the dialer-group command to specify the number of the group permitted

protocol targetBRIport_ipaddress

to access the router:

Router (config-if)# dialer-group

Step 11 Enter the exit command to exit interface configuration mode.
Step 12 Enter the dialer list command to specify the groups and protocols permitted to

groupnumber

access the router:

Router (config)# dialer-list
permit

Step 13 Configure a static route to allow connection to the target router’ s LAN. Enter the

groupnumber

protocol

protocol_type

IP address and subnet mask of the target router’s LAN interface, and the IP
address of the target router’s BRI port:

Router (config)# ip route

targetBRIport_ipaddress

targetrouter_ipnetwork subnetmask

Step 14 Enter the exit command to exit global configuration mode.
Step 15 Enter the copy running-config startup-config command to save the

configuration to NVRAM.

Example ISDN Configuration

For your reference, Table 4-3 shows an example configuration for two Cisco routers using
IP over ISDN. In the example, the current router (branch1) is at a remote site and the target
router (main1) is at a central site.

Configuring the Router 4-21

Configuring ISDN

Table 4-3 Example ISDN Configuration

Configuration for the Current Router Configuration for the Target Router

Router> enable
password: pail1
Router# config term
Router (config)# hostname branch1
branch1 (config)# username main1

password secret1

branch1 (config)# isdn switch-type

basic-dms100

branch1 (config)# interface Ethernet 0
branch1 (config)# ip address

172.16.80.170 255.255.255.0

branch1 (config-if)# interface bri 0
branch1 (config-if)# ip address

172.16.71.1 255.255.255.0

branch1 (config-if)# isdn spid1

415988488501 9884885

branch1 (config-if)# isdn spid2

415988488602 9884886

branch1 (config-if)# dialer

load-threshold 128

branch1 (config-if)# ppp multilink
branch1 (config-if)# encapsulation ppp
branch1 (config-if)# ppp authentication

chap

branch1 (config-if)# dialer map ip

172.16.71.2 name main1 9884883

branch1 (config-if)# dialer group 1
branch1 (config-if)# exit
branch1 (config)# dialer-list 1 protocol ip

permit

branch1 (config-if)# ip route 172.16.0.0

255.255.0.0 172.16.71.2

branch1 (config-if)# ip route 0.0.0.0

172.16.71.2

branch1 (config)# exit
branch1# copy running-config

startup-config

branch1#

Router> enable
password: pail2
Router# config term
Router (config)# hostname main1
main1 (config)# username branch1

password secret1

main1 (config)# isdn switch-type

basic-dms100

main1 (config)# interface Ethernet 0
main1 (config)# ip address 172.16.64.190

255.255.255.0

main1 (config-if)# interface bri 0
main1 (config-if)# ip address

172.16.71.2 255.255.255.0

main1 (config-if)# isdn spid1

415988488201 9884882

main1 (config-if)# isdn spid2

415988488302 9884883

main1 (config-if)# dialer

load-threshold 128

main1 (config-if)# ppp multilink
main1 (config-if)# encapsulation ppp
main1 (config-if)# ppp authentication

chap

main1 (config-if)# dialer map ip

172.16.71.1 name branch1 9884885

main1 (config-if)# dialer group 1
main1 (config-if)# exit
main1 (config)# dialer-list 1 protocol ip

permit

main1 (config-if)# ip route 172.16.80.0

255.255.0.0 172.16.71.1

main1 (config)# exit
main1# copy running-config

startup-config

main1#

4-22 Router Installation and Configuration Guide

Verifying Network Connectivity

After you have installed and configured the router , you can use the following commands in
user EXEC mode to verify network connectivity:

• telnet—Logs in to a remote node

• ping—Sends a special datagram to the destination device, then waits for a reply

datagram from that device

• trace—Discovers the routes that packets take when tra veling from one router to another

If there is a problem with network connectivity, refer to the section “Reading the LEDs” in
the appendix “Troubleshooting the Router” and check the cable connections. If there is still
a problem, check the router configuration.

Getting More Information

For more information about router software configuration, refer to the Cisco IOS
configuration guide and command reference publications. These publications are available
on the documentation CD that accompanied your router or you can order printed copies.
Refer to the section “Ordering Documentation” in the “Overview of the Router” chapter for
ordering information.

Verifying Network Connectivity

Configuring the Router 4-23

Getting More Information

4-24 Router Installation and Configuration Guide

Troubleshooting the Router

This appendix contains information about how to isolate problems with the router and
includes the following sections:

• Isolating Problems

• Reading the LEDs

Isolating Problems

The key to problem solving in this system is to try to isolate the problem to a specific
subsystem. By comparing what the system is doing to what it should be doing, the task of
isolating the problem is greatly simplified.

When problem solving, consider the following subsystems:

APPENDIX

A

• Power and cooling systems—The power supply, power cable, and fan

• Ports and cables—The ports on the rear panel of the router and the cables that connect

to them

Troubleshooting the Router A-1

Isolating Problems

Troubleshooting the Power and Cooling Systems

Check the following items to help isolate the problem:

• When the power switch is in the ON position (|) and the System OK LED is on, are the

fans operating? If not, check the fans.

• Does the router shutdown after being ON a short time? Check the environmental

conditions. The router might be overheating, resulting in a thermal-induced shutdown.
Ensure that the chassis intake and exhaust vents are clear. Review the section “General
Site Requirements” in the chapter “Preparing to Install the Router.” The operating
temperature for the router is 32 to 104° F (0to40°C).

• Does the router fail to boot, but the System OK LED is on? Check the power supply.

• Does the router constantly or intermittently reboot? There might be a problem with

either the processor or the software, or a DRAM SIMM might be installed incorrectly.

For information about obtaining technical support, refer to the section “Obtaining Service
and Support” in the “Overview of the Router” chapter.

Troubleshooting the Ports, Cables, and Connections

Check the following items to help isolate the problem:

• Does the router fail to recognize a port? Check the cable connection.

• When the power switch is in the ON position (|), is the System OK LED on? If not,

check the power source and power cable.

• Does the system boot, but the console screen is frozen? Verify that the console is

configured for 9600 baud, 8 data bits, no parity, and 2 stop bits.

For information about obtaining technical support, refer to the section “Obtaining Service
and Support” in the “Overview of the Router” chapter.

A-2 Router Installation and Configuration Guide

Reading the LEDs

The LEDs indicate the current operating condition of the router. You can observe the LEDs,
note any fault condition that the router is encountering, and then contact your system
administrator or customer service, if necessary. For information about how to contact
customer service, refer to the section “Obtaining Service and Support” in the “Overview of
the Router” chapter.

Figure A-1 to Figure A-7 show the location of the LEDs on the rear panel of the routers.
The power LED, at the right of the auxiliary port, lights up when the system is working
properly. All of the other LEDs indicate acti vity by flickering. When there is hea vy activity
on a port, the LED might be ON constantly. If an LED is not ON when the port is active
and the cable is connected correctly, there might be a problem with the port.

Figure A-1 Model 2501 LEDs

Reading the LEDs

Ethernet
AUI LED

Synchronous

serial LEDs

OK LED

Figure A-2 Model 2502 LEDs

Token Ring

LED

Synchronous

serial LEDs

System

H4262

System

OK LED

H7578

Troubleshooting the Router A-3

Reading the LEDs

Figure A-3 Model 2503 LEDs

Token Ring

LED

Ethernet
AUI LED

Synchronous

serial LEDs

BRI LED

Figure A-4 Model 2504 LEDs

Token Ring

LED

Synchronous

serial LEDs

BRI LED

Figure A-5 Model 2513 LEDs

Ethernet
AUI LED

Synchronous

serial LEDs

ISDN

ISDN

System

OK LED

H7579

System

OK LED

H7580

System

OK LED

TOKEN RING

A-4 Router Installation and Configuration Guide

H7581

Figure A-6 Model 2514 LEDs

Reading the LEDs

Ethernet

AUI LEDs

Token Ring

LEDs

Synchronous

serial LEDs

Figure A-7 Model 2515 LEDs

Synchronous

serial LEDs

System

OK LED

H7582

System

OK LED

H7583

Troubleshooting the Router A-5

Reading the LEDs

A-6 Router Installation and Configuration Guide

APPENDIX

Cable Specifications

This appendix provides the following pinout information:

• Console and Auxiliary Port Signals and Pinouts

• Ethernet Cable Assembly and Pinouts

• Token Ring Port Pinouts

• Synchronous Serial Cable Assemblies and Pinouts

• ISDN BRI Port and Cable Pinouts

Note All pins not listed in the tables in this appendix are not connected.

C

If you prefer to order cables, refer to the section “Obtaining Service and Support” in the
“Overview of the Router” chapter for information about how to contact service.

Console and Auxiliary Port Signals and Pinouts

Your router comes with a console and auxiliary cable kit, which contains the cable and
adapters you need to connect a console terminal (an ASCII terminal or PC running terminal
emulation software) or modem to your router. The console and auxiliary cable kit includes
the following items:

• RJ-45-to-RJ-45 roll-over cable. (See the next section, “Identifying a Roll-Over Cable,”

for more information.)

• RJ-45-to-DB-9 female DTE adapter (labeled “TERMINAL”).

Cable Specifications C-1

Console and Auxiliary Port Signals and Pinouts

• RJ-45-to-DB-25 female DTE adapter (labeled “TERMINAL”).

• RJ-45-to-DB-25 male DCE adapter (labeled “MODEM”).

For console connections, proceed to the section “Console Port Signals and Pinouts” later in
this appendix; for modem connections, proceed to the section “Auxiliary Port Signals and
Pinouts” later in this appendix.

Identifying a Roll-Over Cable

Y ou can identify a roll-ov er cable by comparing the two modular ends of the cable. Holding
the cables side-by-side, with the tab at the back, the wire connected to the pin on the outside
of the left plug should be the same color as the wire connected to the pin on the outside of
the right plug. (See Figure C-1.) If your cable came from Cisco Systems, pin 1 will be white
on one connector, and pin 8 will be white on the other (a roll-over cable re verses pins 1 and
8, 2 and 7, 3 and 6, and 4 and 5).

Figure C-1 Identifying a Roll-Over Cable

Pin 1 and pin 8

Pin 1

should be the

same color

Pin 8

C-2 Router Installation and Configuration Guide

H3824

Console Port Signals and Pinouts

Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-9 female DTE adapter
(labeled “TERMINAL”) to connect the console port to a PC running terminal emulation
software. Figure C-2 shows how to connect the console port to a PC. Table C-1 lists the
pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and
the RJ-45-to-DB-9 female DTE adapter (labeled “TERMINAL”).

Figure C-2 Connecting the Console Port to a PC

Console and Auxiliary Port Signals and Pinouts

RJ-45-to-RJ-45

roll-over cable

Router

RJ-45-to-DB-9 adapter
(labeled “TERMINAL”)

PC

H7226

Table C-1 Console Port Signaling and Cabling Using a DB-9 Adapter
Console

Port (DTE)

RJ-45-to-RJ-45
Roll-Over Cable

RJ-45-to-DB-9
Terminal Adapter

Console
Device

Signal RJ-45 Pin RJ-45 Pin DB-9 Pin Signal

RTS 1

1

8 8 CTS
DTR 2 7 6 DSR
TxD 3 6 2 RxD
GND 4 5 5 GND
GND 5 4 5 GND
RxD 6 3 3 TxD
DSR 7 2 4 DTR
CTS 8

1. Pin 1 is connected internally to Pin 8.

1

17 RTS

Cable Specifications C-3

Console and Auxiliary Port Signals and Pinouts

Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 female DTE adapter
(labeled “TERMINAL”) to connect the console port to a terminal. Figure C-3 shows how
to connect the console port to a terminal. Table C-2 lists the pinouts for the asynchronous
serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 female
DTE adapter (labeled “TERMINAL”).

Figure C-3 Connecting the Console Port to a Terminal

RJ-45-to-RJ-45

roll-over cable

Router

RJ-45-to-DB-25 adapter

(labeled “TERMINAL”)

Terminal

H7227

Table C-2 Console Port Signaling and Cabling Using a DB-25 Adapter
Console

Port (DTE)

RJ-45-to-RJ-45

1

Roll-Over Cable

RJ-45-to-DB-25
Terminal Adapter

Console
Device

Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal

RTS 1

2

8 5 CTS
DTR 2 7 6 DSR
TxD 3 6 3 RxD
GND 4 5 7 GND
GND 5 4 7 GND
RxD 6 3 2 TxD
DSR 7 2 20 DTR
CTS 8

1. You can use the same cabling to connect a console to the auxiliary port.

2. Pin 1 is connected internally to Pin 8.

1

14 RTS

C-4 Router Installation and Configuration Guide

Auxiliary Port Signals and Pinouts

Use the thin, flat, RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 male DCE adapter
(labeled “MODEM”) to connect the auxiliary port to a modem. Figure C-4 shows how to
connect the auxiliary port to a modem. Table C-3 lists the pinouts for the asynchronous
serial auxiliary port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 male
DCE adapter (labeled “MODEM”).

Figure C-4 Connecting the Auxiliary Port to a Modem

Console and Auxiliary Port Signals and Pinouts

RJ-45-to-RJ-45

rollover cable

Router

RJ-45-to-DB-25 adapter

(labeled Modem)

Modem

H6094

Table C-3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
Auxiliary

Port (DTE)

RJ-45-to-RJ-45
Roll-Over Cable

RJ-45-to-DB-25
Modem Adapter Modem

Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal

RTS 1

1

84 RTS
DTR 2 7 20 DTR
TxD 3 6 3 TxD
GND 4 5 7 GND
GND 5 4 7 GND
RxD 6 3 2 RxD
DSR 7 2 8 DCD
CTS 8

1. Pin 1 is connected internally to Pin 8.

1

1 5 CTS

Cable Specifications C-5

Ethernet Cable Assembly and Pinouts

Ethernet Cable Assembly and Pinouts

This section describes the pinouts for an Ethernet AUI cable.
Figure C-5 shows an Ethernet AUI cable assembly, and Table C-4 lists the cable pinouts.

Figure C-5 Ethernet AUI Cable Assembly

1-1
1-9

-15
1-8

J1

Table C-4 Ethernet AUI Cable Pinouts (DB-15)

Ethernet

Pin

3 DO-A Data Out Circuit A
10 DO-B Data Out Circuit B
11 DO-S Data Out Circuit Shield
5 DI-A Data In Circuit A
12 DI-B Data In Circuit B
4 DI-S Data In Circuit Shield
2 CI-A Control In Circuit A
9 CI-B Control In Circuit B
1 CI-S Control In Circuit Shield
6 VC Voltage Common
13 VP Voltage Plus

Circuit Signal

J2-1
J2-9

J2

H1031a

J2-15
J2-8

C-6 Router Installation and Configuration Guide

Table C-4 Ethernet AUI Cable Pinouts (DB-15) (Continued)

Ethernet

Pin

14 VS Voltage Shield (L25 and M25)
Shell PG Protective Ground

Circuit Signal

Token Ring Port Pinouts

T able C-5 lists the T oken Ring port pinouts. Use a Token Ring lobe cable (not included) to
connect the Token Ring port to a MAU.

Table C-5 Token Ring Port (DB-9) Pinouts

1

9 Pin

1 Receive
3 +5V
5 Transmit
6 Receive
9 Transmit

1. Pins 2, 4, 7, and 8 are ground.

2. 600 mA maximum.

Signal

2

Token Ring Port Pinouts

Synchronous Serial Cable Assemblies and Pinouts

The illustrations and tables in this section provide assembly drawings and pinouts for the
EIA-530 DCE, EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables, which
are used with the synchronous serial WAN port (labeled “SERIAL”).

Cable Specifications C-7

Synchronous Serial Cable Assemblies and Pinouts

EIA-530

Figure C-6 shows the EIA-530 serial cable assembly, and Table C-6 lists the pinouts.
Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to
DTE.

Figure C-6 EIA-530 Serial Cable Assembly

J1-46
J1-45
J1-16
J1-15

J1-1
J1-30
J1-31
J1-60

60-pin connector 25-pin connector

Connectors are not to scale

Table C-6 EIA-530 DTE Cable Pinouts (DB-60 to DB-25)

60 Pin Signal 25 Pin Signal

J1-11
J1-12

J1-28
J1-27

J1-9
J1-10

TxD/RxD+
TxD/RxD–

RxD/TxD+
RxD/TxD–

RTS/CTS+
RTS/CTS–

J2-2
J2-14

J2-3
J2-16

J2-4
J2-19

BA(A), TxD+
BA(B), TxD–—>—>

BB(A), RxD+
BB(B), RxD–<—<—

CA(A), RTS+
CA(B), RTS–—>—>

Direction
DTE DCE

1

J2-13
J2-25

H1972

J2-14
J2-1

C-8 Router Installation and Configuration Guide

Synchronous Serial Cable Assemblies and Pinouts

Table C-6 EIA-530 DTE Cable Pinouts (DB-60 to DB-25) (Continued)

Direction

60 Pin Signal 25 Pin Signal

J1-1
J1-2

J1-3
J1-4

J1-46
J1-47

J1-48
J1-49

J1-5
J1-6

J1-24
J1-23

J1-26
J1-25

J1-44
J1-45

J1-7
J1-8

J1-13
J1-14

J1-51
J1-52

1. The EIA-530 interface operates in DTE mode only. A DCE cable is not

CTS/RTS+
CTS/RTS–

DSR/DTR+
DSR/DTR–

Shield_GND
MODE_2

GND
MODE_1

DCD/DCD+
DCD/DCD–

TxC/RxC+
TxC/RxC–

RxC/TxCE+
RxC/TxCE–

LL/DCD
Circuit_GND

DTR/DSR+
DTR/DSR–

TxCE/TxC+
TxCE/TxC–

J2-5
J2-13

J2-6
J2-22

J2-1
–

–
–

J2-8
J2-10

J2-15
J2-12

J2-17
J2-9

J2-18
J2-7

J2-20
J2-23

J2-24
J2-11

GND
MODE_DCE——

available for the EIA-530 interface.

CB(A), CTS+
CB(B), CTS–<—<—

CC(A), DSR+
CC(B), DSR–<—<—

Shield
–

–
–

CF(A), DCD+
CF(B), DCD–<—<—

DB(A), TxC+
DB(B), TxC–<—<—

DD(A), RxC+
DD(B), RxC–<—<—

LL
Circuit_ GND—>–

CD(A), DTR+
CD(B), DTR–—>—>

DA(A), TxCE+
DA(B), TxCE–—>—>

—
—

DTE DCE

Shorted

Shorted

Shorted

1

Cable Specifications C-9

Synchronous Serial Cable Assemblies and Pinouts

EIA/TIA-232

Figure C-7 shows the EIA/TIA-232 cable assembly. Table C-7 lists the DTE pinouts.
Table C-8 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to
DCE, and <— indicates DCE to DTE.

Figure C-7 EIA/TIA-232 Cable Assembly

J1-46
J1-45
J1-16
J1-15

J1-1
J1-30
J1-31
J1-60

60-pin connector 25-pin connector

J2-13
J2-25

H1972

J2-14
J2-1

Connectors are not to scale

Table C-7 EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25)
60 Pin Signal Description Direction 25 Pin Signal

J1-50
J1-51
J1-52

MODE_0
GND
MODE_DCE

Shorting group – – –

J1-46 Shield GND Single – J2-1 Shield GND
J1-41

Shield

TxD/RxD
–

Twisted pair no. 5 —>

–

J2-2
Shield

TxD
–

C-10 Router Installation and Configuration Guide

Synchronous Serial Cable Assemblies and Pinouts

Table C-7 EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25) (Continued)
60 Pin Signal Description Direction 25 Pin Signal

J1-36
Shield

J1-42
Shield

J1-35
Shield

J1-34
Shield

J1-45
Shield

J1-33
Shield

J1-37
Shield

J1-38
Shield

J1-44
Shield

J1-43
Shield

J1-39
Shield

RxD/TxD

Twisted pair no. 9 <—

–
RTS/CTS

Twisted pair no. 4 —>

–
CTS/RTS

Twisted pair no. 10 <—

–
DSR/DTR

Twisted pair no. 11 <—

–
Circuit GND–Twisted pair no. 1 –

DCD/LL

Twisted pair no. 12 <—

–
TxC/NIL

Twisted pair no. 8 <—

–
RxC/TxCE

Twisted pair no. 7 <—

–
LL/DCD

Twisted pair no. 2 —>

–
DTR/DSR

Twisted pair no. 3 —>

–
TxCE/TxC

Twisted pair no. 6 —>

–

J2-3

–

Shield
J2-4

–

Shield
J2-5

–

Shield
J2-6

–

Shield
J2-7

–

Shield
J2-8

–

Shield
J2-15

–

Shield
J2-17

–

Shield
J2-18

–

Shield
J2-20

–

Shield
J2-24

–

Shield

RxD
–

RTS
–

CTS
–

DSR
–

Circuit GND
–

DCD
–

TxC
–

RxC
–

LTST
–

DTR
–

TxCE
–

Cable Specifications C-11

Synchronous Serial Cable Assemblies and Pinouts

Table C-8 EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25)
60 Pin Signal Description Direction 25 Pin Signal

J1-50
J1-51

MODE_0
GND

Shorting group – – –

J1-46 Shield GND Single – J2-1 Shield GND
J1-36

Shield
J1-41

Shield
J1-35

Shield
J1-42

Shield
J1-43

Shield
J1-45

RxD/TxD

Twisted pair no. 9 <—

–
TxD/RxD

Twisted pair no. 5 —>

–
CTS/RTS

Twisted pair no. 10 <—

–
RTS/CTS

Twisted pair no. 4 —>

–
DTR/DSR

Twisted pair no. 3 —>

–
Circuit GND–Twisted pair no. 1 –

Shield
J1-44

Shield
J1-39

LL/DCD

Twisted pair no. 2 —>

–
TxCE/TxC–Twisted pair no. 7 —>

Shield
J1-40

Shield
J1-33

Shield

NIL/RxC
–

DCD/LL
–

Twisted pair no. 6 —>

Twisted pair no. 12 <—

J2-2

–

Shield
J2-3

–

Shield
J2-4

–

Shield
J2-5

–

Shield
J2-6

–

Shield
J2-7

–

Shield
J2-8

–

Shield
J2-15

–

Shield
J2-17

–

Shield
J2-18

–

Shield

TxD
–

RxD
–

RTS
–

CTS
–

DSR
–

Circuit GND

DCD
–

TxC
–

RxC
–

LTST
–

C-12 Router Installation and Configuration Guide

EIA/TIA-449

Synchronous Serial Cable Assemblies and Pinouts

Table C-8 EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25) (Continued)
60 Pin Signal Description Direction 25 Pin Signal

J1-34
Shield

J1-38
Shield

DSR/DTR
–

Twisted pair no. 11 <—

–

RxC/TxCE–Twisted pair no. 8 <—

–

J2-20
Shield

J2-24
Shield

DTR
–

TxCE
–

Figure C-8 shows the EIA/TIA-449 cable assembly. Table C-9 lists the DTE pinouts.
Table C-10 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to
DCE, and <— indicates DCE to DTE.

Figure C-8 EIA/TIA-449 Cable Assembly

J1-46
J1-45
J1-16
J1-15

J1-1
J1-30
J1-31
J1-60

60-pin connector (J1)

Connectors are not to scale

37-pin connector (J2)

J2-19
J2-37

H1973

J2-20
J2-1

Cable Specifications C-13

Synchronous Serial Cable Assemblies and Pinouts

Table C-9 EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37)
60 Pin Signal Description Direction 37 Pin Signal

J1-49
J1-48

J1-51
J1-52

MODE_1
GND

GND
MODE_DCE

Shorting group – – –

Shorting group – – –

J1-46 Shield_GND Single _ J2-1 Shield GND
J1-11

J1-12
J1-24

J1-23
J1-28

J1-27
J1-9

J1-10
J1-26

J1-25
J1-1

J1-2
J1-44

J1-45
J1-3

J1-4
J1-7

J1-8
J1-5

J1-6

TxD/RxD+
TxD/RxD–

TxC/RxC+
TxC/RxC–

RxD/TxD+
RxD/TxD–

RTS/CTS+
RTS/CTS–

RxC/TxCE+
RxC/TxCE–

CTS/RTS+
CTS/RTS–

LL/DCD
Circuit_GND

DSR/DTR+
DSR/DTR–

DTR/DSR+
DTR/DSR–

DCD/DCD+
DCD/DCD–

Twisted pair no. 6 —>

Twisted pair no. 9 <—

Twisted pair no. 11 <—

Twisted pair no. 5 —>

Twisted pair no. 10 <—

Twisted pair no. 1 <—

Twisted pair no. 12 —>

Twisted pair no. 2 <—

Twisted pair no. 4 —>

Twisted pair no. 3 <—

—>

<—

<—

—>

<—

<—

_

<—

—>

<—

J2-4
J2-22

J2-5
J2-23

J2-6
J2-24

J2-7
J2-25

J2-8
J2-26

J2-9
J2-27

J2-10
J2-37

J2-11
J2-29

J2-12
J2-30

J2-13
J2-31

SD+
SD–

ST+
ST–

RD+
RD–

RS+
RS–

RT+
RT–

CS+
CS–

LL
SC

DM+
DM–

TR+
TR–

RR+
RR–

C-14 Router Installation and Configuration Guide

Synchronous Serial Cable Assemblies and Pinouts

Table C-9 EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37) (Continued)
60 Pin Signal Description Direction 37 Pin Signal

J1-13
J1-14

J1-15
J1-16

TxCE/TxC+
TxCE/TxC–

Circuit_GND
Circuit_GND

Twisted pair no. 7 —>

—>

Twisted pair no. 9 –

–

J2-17
J2-35

J2-19
J2-20

TT+
TT–

SG
RC

Table C-10 EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37)
60 Pin Signal Description Direction 37 Pin Signal

J1-49
J1-48

MODE_1
GND

Shorting group – – –

J1-46 Shield_GND Single – J2-1 Shield GND
J1-28

J1-27
J1-13

J1-14
J1-11

J1-12
J1-1

J1-2
J1-24

J1-23
J1-9

J1-10
J1-29

J1-30

RxD/TxD+
RxD/TxD–

TxCE/TxC+
TxCE/TxC–

TxD/RxD+
TxD/RxD–

CTS/RTS+
CTS/RTS–

TxC/RxC+
TxC/RxC–

RTS/CTS+
RTS/CTS–

NIL/LL
Circuit_GND

Twisted pair no. 11 <—

<—

Twisted pair no. 7 —>

—>

Twisted pair no. 6 —>

—>

Twisted pair no. 1 <—

<—

Twisted pair no. 9 —>

—>

Twisted pair no. 5 —>

—>

Twisted pair no. 12 —>

–

J2-4
J2-22

J2-5
J2-23

J2-6
J2-24

J2-7
J2-25

J2-8
J2-26

J2-9
J2-27

J2-10
J2-37

SD+
SD–

ST+
ST–

RD+
RD–

RS+
RS–

RT+
RT–

CS+
CS–

LL
SC

Cable Specifications C-15

Synchronous Serial Cable Assemblies and Pinouts

Table C-10 EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37) (Continued)
60 Pin Signal Description Direction 37 Pin Signal

J1-7
J1-8

J1-3
J1-4

J1-5
J1-6

J1-26
J1-25

J1-15
J1-16

DTR/DSR+
DTR/DSR–

DSR/DTR+
DSR/DTR–

DCD/DCD+
DCD/DCD–

RxC/TxCE+
RxC/TxCE–

Circuit_GND
Circuit_GND

Twisted pair no. 4 —>

Twisted pair no. 2 <—

Twisted pair no. 3 —>

Twisted pair no. 10 <—

Twisted pair no. 8 _

V.35

Figure C-9 shows the V.35 cable assembly. Table C-11 lists the DTE pinouts. Table C-12
lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and
<— indicates DCE to DTE.

—>

<—

—>

<—

_

J2-11
J2-29

J2-12
J2-30

J2-13
J2-31

J2-17
J2-35

J2-19
J2-20

DM+
DM–

TR+
TR–

RR+
RR–

TT+
TT–

SG
RC

C-16 Router Installation and Configuration Guide