Cisco Systems 2600 manual Console and Auxiliary Port Considerations, Console Port Connections

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Chapter 2 Preparing to Install the Router

Console and Auxiliary Port Considerations

•Needlenose pliers

–For straightening any pins bent when you install the ROM

•Cable ties, if required, for organizing cables

To install a Cisco 2600 router of 1 rack-unit height on a wall, you need suitable screws or wall anchors.

In addition, depending on the type of modules you plan to use, you might need the following equipment to connect a port to an external network:

•Cables for connection to the WAN and LAN ports (dependent on configuration).

Note For more information on cable specifications, refer to the Cisco Modular Access Router Cable Specifications document online or on the Documentation CD-ROM.

•Ethernet hub or PC with a network interface card for connection to Ethernet (LAN) ports.

•Console terminal (an ASCII terminal or a PC running terminal emulation software) configured for 9600 baud, 8 data bits, no parity, and 1 stop bit.

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

•Token Ring interfaces require a Token Ring media attachment unit (MAU).

•Serial interfaces may require a data service unit (DSU) or channel service unit/data service unit (DSU/CSU).

•CT1/PRI modules without the built-in CSU require an external CSU.

•ISDN BRI S/T interfaces require an NT1 device if one is not supplied by your service provider.

Console and Auxiliary Port Considerations

The router includes an asynchronous serial console port and an auxiliary port. The console and auxiliary ports provide access to the router either locally using a console terminal, or remotely using a modem connected to the auxiliary port. This section discusses important cabling information to consider before connecting a console terminal, which can be either an ASCII terminal or a 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 device. Flow control ensures that the receiving device can absorb the data sent to it before the sending device 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 ideally suited for use with the high-speed transmissions of a modem. Console terminals transmit at slower speeds than modems; therefore, the console port is ideally suited for use with console terminals.

Console Port Connections

The router has an EIA/TIA-232 asynchronous serial console port (RJ-45). Depending on the cable and the adapter used, this port appears as a DTE or DCE device at the end of the cable.

For connection to a PC running terminal emulation software, your router is provided with an RJ-45 to DB-9 adapter cable.

Cisco 2600 Series Routers Hardware Installation Guide

 

OL-2171-06

2-7

 

 

 

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Contents Corporate Headquarters Cisco 2600 Series Routers Hardware Installation GuideCisco 2600 Series Routers Hardware Installation Guide Iii N T E N T SSerial DTE or DCE Devices Initial Configuration Using the Setup Command Facility Procedure for the tftpdnld Command Configuration Register Vii ObjectivesChapter Title Description AudienceOrganization ConventionsBewaar Deze Instructies Safety WarningsAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseGuarde Estas Instruções Aviso Instruções Importantes DE SegurançaXii GEM Disse AnvisningerXiii Xiv Related DocumentationCisco Product Document Title Xvi Cisco 90-Day Limited Hardware Warranty TermsDuration of Hardware Warranty Replacement, Repair, or Refund Policy for HardwareOrdering Documentation Obtaining DocumentationDocumentation Feedback Cisco.comXviii Submitting a Service RequestObtaining Technical Assistance Cisco Technical Support WebsiteDefinitions of Service Request Severity Obtaining Additional Publications and InformationXix Preface Obtaining Additional Publications and Information Overview of Cisco 2600 Series Routers Hardware FeaturesCisco AdvancedReading the Front-Panel LEDs PowerSYS/RPS RPSActivity PWRACT Reading the Rear-Panel LEDsCisco 2613-Rear-Panel LEDs Link ACTFDX CF1 Modules, Interface Cards, and MemoryWAN and LAN Interface Numbering Interface Numbering11 Interface Numbering in Chassis with 1-RU Height System Specifications Description SpecificationVoice Interface Numbering Regulatory Compliance Safety with Electricity Safety RecommendationsPreventing Electrostatic Discharge Damage Site Environment Power Supply ConsiderationsPower Source Input Power Tolerance Limits General Site RequirementsInstallation Checklist Site ConfigurationEquipment Racks Task Verified by Date Creating a Site LogInspecting the Router Tools and Equipment for Installation and MaintenanceConsole Port Connections Console and Auxiliary Port ConsiderationsAuxiliary Port Connections Preparing to Connect to a NetworkToken Ring Connections Ethernet ConnectionsConfiguring Serial Connections Serial ConnectionsSerial DTE or DCE Devices Signaling Standards Supported Distance LimitationsDevice Type Gender Typical Devices Distance EIA-530 Distance Rate bps Feet Meters Isdn BRI ConnectionsAsynchronous/Synchronous Serial Module Baud Rates EIA/TIA-232Low-Capacitance Cable 56-K/Switched-56-kbps DSU/CSU ConnectionsOL-2171-06 Installing the Router For AIMs Installing Modules, Interface Cards, and Power SuppliesFor network modules For WICs and VICsFor external power supplies Setting Up the ChassisSetting the Chassis on a Desktop For internal power suppliesMounting the Chassis in a Rack Right To the other side of the chassis. Brackets for 19-inch rack Brackets for 19-inch rack To the other side of the chassis Use two screws on each side For 19-inch rack Right bracket Attaching the Brackets to a Router of 2-RU HeightV0 EN Installing the Router in a RackMounting the Chassis on the Wall Attaching Rubber Feet to the RouterAttaching Wall-Mount Brackets to the Router 16 Attaching the Wall-Mount Brackets Mounting the Router on the Wall17 Mounting the Chassis on the Wall Installing the Chassis Ground ConnectionRing terminal Connecting Routers to AC Power Power Connections15A, 120VAC 10A, 240VAC. Statement Connecting Routers to a DC-Input Power SupplyDC Wiring Requirements Router DC Input DC Input Wire Size1Wiring Procedure for DC Input Port or Connection Port Type, Color Connected To Cable Connecting WAN, LAN, and Voice CablesConnecting Routers to the Cisco Redundant Power System Ports and CablingLAN, WAN, and Voice Connection Procedures Connecting to the Console Port Connecting to a Console Terminal or Modem23 Connecting to a Console Terminal Connecting to the Auxiliary PortIdentifying a Rollover Cable 24 Connecting a Modem to the Auxiliary PortRouters with 1-RU Chassis Height Powering Up the RouterChecklist for Power Up Front Panel IndicatorsRouters with 2-RU Chassis Height Power-Up ProcedureConfiguring the Router Initial Configuration Using the Setup Command Facility Initial Configuration Using SDMEnter a hostname for the router this example uses Configuration is displayed Initial Configuration Using the CLI Manual ConfigurationTo proceed with manual configuration using the CLI, enter no OL-2171-06 Isolating Problems TroubleshootingEnvironmental Reporting Features Troubleshooting the Power and Cooling SystemsTroubleshooting Modules, Cables, and Connections Recovering a Lost Password System MessagesCisco Technical Assistance Center Entering ROM Monitor Mode Using the ROM MonitorEnter ROM Monitor Mode by Using the reload Command ROM Monitor CommandsCommand abc ROM Monitor Command Syntax ConventionsROM Monitor Command Descriptions Router Management CommandsBoot Commands in the ROM Monitor Informational Commands in the ROM Monitor Other Useful ROM Monitor Commands Debugging CommandsModifying the Configuration Register in Menu Mode Configuration Register CommandsModifying the Configuration Register by Hexidecimal Entry Recovering Cisco IOS Software ImagesConsole Requirements Copying an Image from the Console Using the xmodem CommandDescription and Options of the xmodem Command Procedure for the xmodem CommandRestrictions on the tftpdnld Command Specify the required variables, for example Procedure for the tftpdnld CommandDEFAULTGATEWAY=172.16.19.1 Configuration Register Settings Bit Number Hexadecimal MeaningNvram Changing Configuration Register Settings Boot Field Meaning Configuring the Boot FieldBit Address net host Baud Bit Enabling Booting from Flash MemoryOL-2171-06 IN-1 NumericsIN-2 DramIN-3 Isdn BRILAN Link LEDIN-4 SdramIN-5 IN-6
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