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Hardware Features Chapter 1 Overview of Cisco 2600 Series Routers Table 1-1 Summary of Cisco 2600 Series LAN Interfaces (continued) Model Ethernet (10BASE-T) Cisco 2621XM - Cisco 2650 - Cisco 2650XM - Cisco 2651 - Cisco 2651XM - Cisco 2691 - Token Ring (RJ-45 Fast Ethernet (10/100) 2 1 1 2 2 2 Network Module Slot 1 1 1 1 1 1 WAN Interface Card Slots 2 2 2 2 2 3 Advanced Integration Module Slots 1 1 1 1 1 2 In addition to the interfaces listed in Table 1-1, Cisco 2600 series routers include the following hardware features: • Dynamic random-access memory (DRAM) for main memory and shared memory (Cisco 261x and Cisco 262x routers) • Synchronous dynamic random-access memory (SDRAM) for main memory and shared memory (Cisco 26xxXM, Cisco 265x, and Cisco 2691 routers) • Nonvolatile random-access memory (NVRAM) for storing configuration information • Flash memory-Stores the operating system software image. In Cisco 2691 routers, flash memory is a CompactFlash memory card. In all other Cisco 2600 series routers, flash memory is a single inline memory module (SIMM). • EIA/TIA-232 (RJ-45) console port for local system access by using a console terminal • EIA/TIA-232 (RJ-45) auxiliary port for remote system access or dial backup by using a modem Figure 1-1 and Figure 1-2 show examples of Cisco 2600 series routers. Note Cisco 2600 series routers are either single rack-unit (1RU) or two rack-unit (2RU) high. Note The number and type of interfaces vary, depending on the specific router. Figure 1-1 Cisco 2600 Series Router Rear Panel-Example of 1RU Router Cisco 2650 W1 SERIAL 1 CONN SERIAL 0 SEE MANUAL BEFORE INSTALLATION WIC CONN 2A/S SERIAL 1 CONN SERIAL 0 WIC CONN 2T SEE MANUAL BEFORE INSTALLATION W0 Cisco 2650 LINK ETHERNET 0 ACT CONSOLE AUX 100-240V- 1A 50/60 Hz 47 W 10/100BASE-T Ethernet 0/0 (RJ-45) Auxiliary port Console (RJ-45) port (RJ-45) 31617 Cisco 2600 Series Routers Hardware Installation Guide 1-2 OL-2171-06

Section	Page
Cisco 2600 Series Routers Hardware Installation Guide	1
Contents	3
Preface	7
Objectives	7
Audience	8
Organization	8
Conventions	8
Safety Warnings	9
Related Documentation	14
Cisco 90-Day Limited Hardware Warranty Terms	16
Obtaining Documentation	17
Cisco.com	17
Ordering Documentation	17
Documentation Feedback	17
Obtaining Technical Assistance	18
Cisco Technical Support Website	18
Submitting a Service Request	18
Definitions of Service Request Severity	19
Obtaining Additional Publications and Information	19
Overview of Cisco2600 Series Routers	21
Hardware Features	21
Reading the Front-Panel LEDs	23
Reading the Rear-Panel LEDs	25
Modules, Interface Cards, and Memory	28
Interface Numbering	29
WAN and LAN Interface Numbering	29
Voice Interface Numbering	31
System Specifications	31
Regulatory Compliance	32
Preparing to Install the Router	33
Safety Recommendations	33
Safety with Electricity	33
Preventing Electrostatic Discharge Damage	34
General Site Requirements	35
Power Supply Considerations	35
Site Environment	35
Site Configuration	36
Equipment Racks	36
Installation Checklist	36
Creating a Site Log	37
Inspecting the Router	38
Tools and Equipment for Installation and Maintenance	38
Console and Auxiliary Port Considerations	39
Console Port Connections	39
Auxiliary Port Connections	40
Preparing to Connect to a Network	40
Ethernet Connections	41
Token Ring Connections	41
Serial Connections	42
Configuring Serial Connections	42
Serial DTE or DCE Devices	42
Signaling Standards Supported	43
Distance Limitations	43
Asynchronous/Synchronous Serial Module Baud Rates	44
ISDN BRI Connections	44
56-K/Switched-56-kbps DSU/CSU Connections	45
Installing the Router	47
Installing Modules, Interface Cards, and Power Supplies	48
Setting Up the Chassis	49
Setting the Chassis on a Desktop	49
Mounting the Chassis in a Rack	50
Attaching the Brackets to Cisco261x, Cisco262x, Cisco26xxXM, and Cisco265x Series Routers	51
Attaching the Brackets to a Router of 2-RU Height	55
Installing the Router in a Rack	56
Mounting the Chassis on the Wall	57
Attaching Rubber Feet to the Router	57
Attaching Wall-Mount Brackets to the Router	57
Mounting the Router on the Wall	58
Installing the Chassis Ground Connection	59
Power Connections	61
Connecting Routers to AC Power	61
Connecting Routers to a DC-Input Power Supply	62
DC Wiring Requirements	62
Connecting Routers to the Cisco Redundant Power System	64
Connecting WAN, LAN, and Voice Cables	64
Ports and Cabling	64
LAN, WAN, and Voice Connection Procedures	65
Connecting to a Console Terminal or Modem	66
Connecting to the Console Port	66
Connecting to the Auxiliary Port	67
Identifying a Rollover Cable	68
Powering Up the Router	69
Checklist for Power Up	69
Front Panel Indicators	69
Power-Up Procedure	70
Configuring the Router	71
Initial Configuration Using SDM	72
Initial Configuration Using the Setup Command Facility	72
Initial Configuration Using the CLI (Manual Configuration)	74
Troubleshooting	77
Isolating Problems	77
Troubleshooting the Power and Cooling Systems	78
Environmental Reporting Features	78
Troubleshooting Modules, Cables, and Connections	79
System Messages	80
Recovering a Lost Password	80
Cisco Technical Assistance Center	80
Using the ROMMonitor	81
Entering ROM Monitor Mode	81
ROM Monitor Commands	82
ROM Monitor Command Syntax Conventions	83
ROM Monitor Command Descriptions	84
Router Management Commands	84
Boot Commands in the ROM Monitor	84
Informational Commands in the ROM Monitor	85
Other Useful ROM Monitor Commands	86
Debugging Commands	86
Configuration Register Commands	87
Recovering Cisco IOS Software Images	88
Copying an Image from the Console Using the xmodem Command	89
Description and Options of the xmodem Command	89
Console Requirements	89
Procedure for the xmodem Command	89
Copying an Image from a TFTP Server Using the tftpdnld Command	90
Restrictions on the tftpdnld Command	90
Procedure for the tftpdnld Command	91
Configuration Register	93
Configuration Register Settings	93
Changing Configuration Register Settings	94
Configuring the Boot Field	95
Enabling Booting from Flash Memory	97

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1-2

Cisco 2600 Series Routers Hardware Installation Guide

OL-2171-06

Chapter 1

Overview of Cisco 2600 Series Routers

Hardware Features

In addition to the interfaces listed in

Table 1-1

, Cisco

2600 series routers include the following hardware

features:

•

Dynamic random-access memory (DRAM) for main memory and shared memory (Cisco 261

and

Cisco 262

routers)

•

Synchronous dynamic random-access memory (SDRAM) for main memory and shared memory

(Cisco 26

XM, Cisco 265

, and Cisco 2691 routers)

•

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

•

Flash memory—Stores the operating system software image. In Cisco 2691 routers, flash memory

is a CompactFlash memory card. In all other Cisco 2600 series routers, flash memory is a single

inline memory module (SIMM).

•

EIA/TIA-232 (RJ-45) console port for local system access by using a console terminal

•

EIA/TIA-232 (RJ-45) auxiliary port for remote system access or dial backup by using a modem

Figure 1-1

and

Figure 1-2

show examples of Cisco 2600 series routers.

Note

Cisco 2600 series routers are either single rack-unit (1RU) or two rack-unit (2RU) high.

Note

The number and type of interfaces vary, depending on the specific router.

Figure 1-1

Cisco 2600 Series Router Rear Panel—Example of 1RU Router

Cisco 2621XM

—

Cisco 2650

—

Cisco 2650XM

—

Cisco 2651

—

Cisco 2651XM

—

Cisco 2691

—

Table 1-1

Summary of Cisco 2600 Series LAN Interfaces (continued)

Model

Ethernet

(10BASE-T)

Token Ring

(RJ-45)

Fast Ethernet

(10/100)

Network

Module Slot

WAN Interface

Card Slots

Advanced

Integration

Module Slots

SEE MANUAL BEFORE INSTALLATION

SERIAL 1

SERIAL 0

CONN

WIC

2A/S

SEE MANUAL BEFORE INSTALLATION

SERIAL 1

SERIAL 0

CONN

WIC

Cisco 2650

100-240V–

50/60 Hz

47 W

AUX

CONSOLE

ETHERNET 0

ACT

LINK

10/100BASE-T

Ethernet 0/0

(RJ-45)

Auxiliary port

(RJ-45)

Console

port (RJ-45)

Cisco 2650

31617