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Cisco Systems Cisco 3600 manual 56-K/Switched-56-kbps DSU/CSU Connections, Low-Capacitance Cable

Models: Cisco 3600

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Chapter 2 Preparing to Install the Router

Preparing to Connect to a Network

Table 2-4 ISDN BRI Cable Specifications

Specification	High-Capacitance Cable	Low-Capacitance Cable

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

Capacitance (at 1 kHz)	120 nF1/km	30 nF/km
Impedance (at 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

For more information on BRI WAN interface cards, refer to the Cisco Interface Cards Installation Guide online document. This document is located on Cisco.com and the Documentation CD-ROM.

56-K/Switched-56-kbps DSU/CSU Connections

Switched-56-kbps connections are provided by the 56-kbps DSU/CSU WAN interface card.

For more information on Switched-56-kbps WAN interface cards, refer to the Cisco Interface Cards Installation Guide online document. This document is located on Cisco.com and the Documentation CD-ROM.

Cisco 3600 Series Routers Hardware Installation Guide

2-14	OL-2056-05

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Cisco Systems Cisco 3600 manual 56-K/Switched-56-kbps DSU/CSU Connections, Low-Capacitance Cable

Contents

Cisco 3600 Series Routers Hardware Installation Guide Corporate HeadquartersCisco 3600 Series Routers Hardware Installation Guide N T E N T S Creating a Site Log Connecting Routers to the Cisco Redundant Power System Troubleshooting A-1 Preface ObjectivesConventions AudienceOrganization Chapter Title DescriptionSafety Warnings Bewaar Deze InstructiesWarnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaAviso Instruções Importantes DE Segurança Guarde Estas InstruçõesGEM Disse Anvisninger Xiii Related Documentation Cisco Product Document Title Replacement, Repair, or Refund Policy for Hardware Cisco 90-Day Limited Hardware Warranty TermsDuration of Hardware Warranty Cisco.com To Receive a Return Materials Authorization RMA NumberObtaining Documentation Documentation CD-ROMOrdering Documentation Documentation FeedbackObtaining Technical Assistance Cisco TAC WebsiteOpening a TAC Case TAC Case Priority DefinitionsObtaining Additional Publications and Information Hardware Features Overview of Cisco 3600 Series RoutersCisco Front Panel of the Cisco 3640 Router Front Panel of the Cisco 3660 Router Modules and Interface Cards Cisco 3662 Router with Two Fast Ethernet InterfacesDescription Specification Memory Installation DocumentationMemory Specifications Memory55 KB Slot Numbering Interface NumberingCisco 3620 and Cisco 3640 Interfaces Unit NumberingWAN and LAN Interface Numbering Cisco 3631 InterfacesVoice Interface Numbering Interface Numbering-Example Cisco 3660 Interfaces Cisco 3660 Slot NumbersSystem Specifications Regulatory Compliance and Safety Information document thatCisco 3631 Router System Specifications Cisco 3640 Router System Specifications Regulatory Compliance OL-2056-05 Safety Recommendations Safety with ElectricityPreventing Electrostatic Discharge Damage Power Supply Considerations General Site RequirementsSite Configuration Site EnvironmentEquipment Racks Installation Checklist Task Verified by DateCreating a Site Log Inspecting the RouterTools and Equipment for Installation and Maintenance Auxiliary Port Connections Console and Auxiliary Port ConsiderationsConsole Port Connections Preparing to Connect to a Network Ethernet ConnectionsSerial Connections Configuring Serial ConnectionsToken Ring Connections Serial DTE or DCE DevicesDevice Type Gender Typical Devices Signaling Standards SupportedDistance Limitations EIA/TIA-232 Isdn BRI ConnectionsAsynchronous/Synchronous Serial Module Baud Rates Distance EIA-530 Distance Rate bps Feet Meters56-K/Switched-56-kbps DSU/CSU Connections Low-Capacitance CableInstalling the Router Installing Modules, Interface Cards, and Power Supplies Rack-Mounting the Chassis Installing the ChassisSetting the Chassis on a Desktop Right Attaching Brackets to the Router Cisco 3640 Rack-Mount BracketsFront-Panel-Forward Installation Use two screws on each side 17327 Rear-Panel-Forward Installation Four screws are required on each side 82808 Center-Mount Installation 22 Cisco 3660 Center-Mount Bracket Attachment Mounting the Router in the Rack Inch rack 24-inch rack 26 Mounting the Cisco 3631 Router 19-Inch Rack 28 Mounting the Cisco 3660 Router 19-Inch Rack Attaching Wall-Mount Brackets to the Router Wall-Mounting the Cisco 3620 RouterAttaching Rubber Feet to the Router Mounting the Router on the WallInstalling Chassis Ground Connection Cisco 3620 and Cisco 3640 Chassis Ground ConnectionMounting Screws Power supply Bracket NEBS-Compliant Ground Lug Attachment on a Cisco 3640 Router Ring terminal attached to a bracket Power supply Ring terminal Cisco 3631 Chassis Ground Connection Ground lug attachmentCisco 3660 Chassis Ground Connection 103013 Connecting Routers to a DC-Input Power Supply Power ConnectionsConnecting Routers to AC Power 15A, 120VAC 10A, 240VAC. StatementDC Wiring Requirements DC Input DC Input Wire Size43 DC Power Connections for Cisco 3620 Routers Typical Overcurrent Wiring the DC-Input Power Supply in Cisco 3631 RoutersDC Input 45 DC Power Connections for -DC Input to Cisco 3631 Routers Wiring the DC-Input Power Supply in Cisco 3660 Routers 47 Wire Routing and Attachment for Cisco 3631 RoutersWire Termination Safety Ground Overcurrent DC Input Wire Size Method ProtectionReturn Safety ground Wire management bracket Connecting Routers to the Cisco Redundant Power System Connecting WAN, LAN, and Voice Cables Ports and CablingPort or Connection Port type, color Connected to Cable T1/E1 WANConnecting WAN, LAN, and Voice Cables Without Chassis Shield Connections for Cisco 3660 RoutersLAN, WAN, and voice cables Power wires 54 Removing Panels from Chassis Shield 55 Cables Routed Through Openings in the Chassis Shield Connecting to a Console Terminal or Modem 56 Cables Routed Through the Chassis CutoutConnecting to the Console Port 57 Connecting a Console Terminal to a Cisco 3620 Router58 Connecting a Console Terminal to a Cisco 3631 Router Connecting to the Auxiliary Port 60 Connecting a Console Terminal to a Cisco 3660 RouterModem Modem cable AUX port Connector RJ-45 RJ-45-to-RJ-45 rollover cable Identifying a Rollover Cable 65 Identifying a Rollover CableFront Panel Indicators Powering Up the RouterChecklist for Power Up Power-Up Procedure Cisco 3620 series and Cisco 3640 seriesConfiguring the Router Initial Configuration Using SDMInitial Configuration Using the Setup Command Facility Summary of the available interfaces is displayed User prompt appears Initial Configuration Using the CLI Manual Configuration Enter privileged Exec modeOL-2056-05 Troubleshooting Isolating ProblemsTroubleshooting the Power and Cooling Systems Environmental Reporting Features Troubleshooting Modules, Cables, and ConnectionsReading Front-Panel LEDs Figure A-1 Cisco 3620 Router Front-Panel LEDsFigure A-2 Cisco 3640 Router Front-Panel LEDs Color RPS Status Color Power Supply StatusColor Description Front-Panel LEDs on Cisco 3631 Routers LEDColor Status Reading Rear-Panel LEDsRear-Panel LEDs on Cisco 3631 Routers Rear-Panel LEDs on Cisco 3660 Routers SystemError Messages Cisco 3600 Series Error MessagesMessage Cisco 3660 Error Messages LED Type LED Color MessageFan Cage in Cisco 3660 Routers hardware configuration note Cisco 3600 Series Routers hardware configuration note PS1, PS2 Amber Recovering a Lost Password Using the ROM Monitor Entering ROM Monitor ModeROM Monitor Commands Enter ROM Monitor Mode by Using the reload CommandCommand abc ROM Monitor Syntax ConventionsBoot Commands in the ROM Monitor ROM Monitor Command DescriptionsRouter Management Commands Entering Boot Commands Informational Commands in the ROM Monitor Other Useful ROM Monitor CommandsDebugging Commands Configuration Register CommandsModifying the Configuration Register in Menu Mode Console Requirements Recovering Cisco IOS Software ImagesDescription and Options of the xmodem Command Procedure for the xmodem Command Configuration Register Configuration Register SettingsChanging Configuration Register Settings Bit Number Hexadecimal MeaningRouter# config-register 0xvalue Configuring the Boot Field Boot Field MeaningBit Address net host Baud BitEnabling Booting from Flash Memory Router# configureSymbols IN-2 IN-3 IN-4 IN-5 IN-6