Cisco CPA2501 User manual

About This Guide xv
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.
AudienceThispublicationisdesignedforthepersoninstallingtherouter,whoshouldbefamiliarwith
electronic circuitry and wiring practices and have experience as an electronic or
electromechanical technician.

xvi Router Installation and Configuration Guide
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 ( | ).

About This Guide xvii
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 Meansreader takenote. Notes contain helpful suggestions or referencesto 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.)

xviii Router Installation and Configuration Guide
Conventions

CHAPTER
Overview of the Router 1-1
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.
1. AUI = attachment unit interface.
2. ISDN = Integrated Services Digital Network.
3. BRI = Basic Rate Interface.
4. A CPA2515 model is not available.
Table 1-1 Summary of Router Interfaces
Model Ethernet AUI1(DB-15) Token Ring
(DB-9) Serial (DB-60) ISDN2BRI3 (RJ-45)
Cisco 2501/
CPA2501 1–2–
Cisco 2502/
CPA2502 –12–
Cisco 2503/
CPA2503 1–21
Cisco 2504/
CPA2504 –121
Cisco 2513/
CPA2513 112–
Cisco 2514/
CPA2514 2–2–
Cisco 25154–22–

1-2 Router Installation and Configuration Guide
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.

Overview of the Router 1-3
Hardware Features
Figure 1-1 Model 2501 Router Rear Panel
Figure 1-2 Model 2502 Router Rear Panel
H4262
Ethernet
AUI LED
Ethernet
AUI port
(DB-15)
Console
port (RJ-45)
Auxiliary port
(RJ-45)
On/off
switch Power
Synchronous
serial LEDs
Synchronous
serial ports
(DB-60)
System
OK LED
H6585
Token Ring
port (DB-9) Console
port (RJ-45)
Auxiliary port
(RJ-45)
On/off
switch PowerSynchronous
serial ports
(DB-60)
Token Ring
LED Synchronous
serial LEDs System
OK LED

1-4 Router Installation and Configuration Guide
Hardware Features
Figure 1-3 Model 2503 Router Rear Panel
Figure 1-4 Model 2504 Router Rear Panel
H6586
Ethernet
AUI port
(DB-15)
PowerSynchronous
serial ports
(DB-60)
Console
port
(RJ-45)
ISDN
BRI port
(RJ-45)
Auxiliary port
(RJ-45)
Ethernet
AUI LED Synchronous
serial LEDs ISDN
BRI LED System
OK LED
On/off
switch
Power
On/off
switch
H6587
Token Ring
port (DB-9) Synchronous serial ports
(DB-60)
Token Ring
LED Synchronous
serial LEDs System
OK LED
ISDN
BRI LED
Console
port
(RJ-45)
ISDN
BRI port
(RJ-45)
Auxiliary port
(RJ-45)

Overview of the Router 1-5
Hardware Features
Figure 1-5 Model 2513 Router Rear Panel
Figure 1-6 Model 2514 Router Rear Panel
H6588
TOKEN RING
Token Ring
port (DB-9) Ethernet AUI port
(DB-15)
Synchronous
serial ports
(DB-60)
Token Ring
LED
Power
On/off
switch
Ethernet
AUI LED Synchronous
serial LEDs System
OK LED
Console port
(RJ-45)
Auxiliary port
(RJ-45)
Synchronous
serial ports
(DB-60)
On/off
switch Power
H6589
Ethernet
AUI ports
(DB-15)
Ethernet
AUI LEDs Synchronous
serial LEDs System
OK LED
Console
port (RJ-45)
Auxiliary port
(RJ-45)

1-6 Router Installation and Configuration Guide
System Specifications
Figure 1-7 Model 2515 Router Rear Panel
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),
one rack unit
Weight 10 lb (4.5 kg)
Input voltage, AC power supply
Current
Frequency
Power dissipation
100 to 240 VAC
1.2 to 0.6A
50/60 Hz
40W (maximum), 135.5 Btus1/hr
Input voltage, DC power supply
Current
Power dissipation
40W, 40 to 72 VDC
1.5 to 1.0A
40W (maximum), 135.5 Btus/hr
Processor 20-MHz Motorola 68EC030
On/off
switch Power
H6590
System
OK LED
Token Ring
LEDs Synchronous
serial LEDs
Synchronous
serial ports
(DB-60)
Token Ring
ports (DB-9) Console
port (RJ-45)
Auxiliary port
(RJ-45)

Overview of the Router 1-7
Obtaining Service and Support
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.
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.
Interfaces See Table 1-1 for a list of interfaces supported on each
router model.
• Ethernet AUI (IEEE2802.3) (DB-15)
• Token Ring (IEEE 802.5) (DB-9)
• Synchronous serial3(DB-60)
• ISDN BRI (RJ-45)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.
Table 1-2 System Specifications (Continued)
Description Specification

1-8 Router Installation and Configuration Guide
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.

Overview of the Router 1-9
Ordering Documentation
ForacopyofCCO’s Frequently AskedQuestions(FAQ),contact[email protected]. For
additional information, contact [email protected].
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 [email protected].
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
[email protected].
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.

1-10 Router Installation and Configuration Guide
Ordering Documentation

CHAPTER
Preparing to Install the Router 2-1
2
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:
•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.
•Wear safety glasses if you are working under any 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.

2-2 Router Installation and Configuration Guide
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 power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects will heat up when connected to
power and ground and can cause serious burns or can weld the metal object to the terminals.
(To see translated versions of this warning, refer to the Regulatory Compliance and Safety
Information document that accompanied your router.)
•Locate the emergency power OFF switch for the room in which you are working. 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 power supplies, unplug the power
cordon AC units; disconnect the poweratthecircuitbreakeronDCunits. (To 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
witha powerswitch,linevoltagesarepresentwithinthepowersupplyevenwhenthepower
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.)

Preparing to Install the Router 2-3
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. (To see translated versions of this warning, refer to the Regulatory 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.

2-4 Router Installation and Configuration Guide
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 environment 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.

Preparing to Install the Router 2-5
General Site Requirements
•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
airthrough the chassis. The best placement of the bafflesdependsontheairflowpatterns
in the rack, which are found by experimenting with different arrangements.
Power Supply Considerations
Check the power at your site to ensure that you are receiving “clean” power (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.)

2-6 Router Installation and Configuration Guide
Preparing to Connect to a Network
The router power supply includes the following features:
•Autoselects either 110V or 220V operation.
•Allunits include a 6-foot (1.8-meter)electricalpowercord.(Alabelnear the powercord
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).(Toseetranslatedversionsofthiswarning, refertotheRegulatoryCompliance
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 like telephone-network voltage
(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.)