Installing the Hub | HP J3188A instruction

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Installing the Hub

This chapter describes how to install the hub. Topics in this chapter include

■installing and configuring the hub

■connecting devices to the hub

■connecting hubs together

■interpreting hub LEDs

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HP J3188A manual Installing the Hub

Contents

HP J3188A Page HP 10Base-T Hub-16M J3188A Installation and Reference Guide Publication Number Iii HP 10Base-T Hub-16M J3188AFront of the Hub Back of the Hub Network Connections Features Contents Cables and Connectors Vii Security InformationPage Installing the Hub Verify the hub operates correctly Installing and Configuring Your HubVerify included parts Connect the external transceiver Time Cord connected directly to the hub for proper operation Pattern LED Rack or Cabinet Mounting Mount the hub Table Mounting Connect the hub to your network Twisted-Pair Cascade Connections Connecting Devices to the HubConnecting Hubs Together ThinLAN Connections Installing Ohm terminator Interpreting LED Status Connecting the Hub-16M to a Fiber-Optic Backbone Interpreting Hub Status LEDs Following table provides LED port information Interpreting Port Status LEDsPage Troubleshooting Approaches Troubleshooting Problem Solution Using a Checklist to Diagnose the HubTroubleshooting Using a Checklist to Diagnose the Hub LED Operation Hub will automatically recover after Troubleshooting LED OperationDiagnostic Tips Power Coll Clearing a Password for the Ascii Console Hub Maintenance TasksTesting the Hub Only Obtaining Firmware Enhancements Troubleshooting Hub Maintenance TasksRunning Connectivity Tests Managing the Hub Setting up the Ascii Console Managing the Hub Directly, Using a Serial Cable and a TerminalRemotely, Using Telnet Starting the Console Remotely, Using a Modem and a Terminal Syntax Conventions on Help Screen Console Command ReferenceCommands are described in the rest of the chapter Example HE ST This displays help for the Status command Default Description BAckup Range CDpstatusCOunters Counter Name Definition Valid Range DIsconnect IPconfigWhen to Use IPconfig Following table explains the IP parameters Configuring for Network ManagementUsing Novell NetWare IPX Using IP MAnagers SHow Parameter Default Value Definition To end your editing CommandManager Address IP or IPX Receive Alarms? Table entry with ID 1 would now be a blank line Displays the other devices that are using CDP protocolMEssageinterval NEighbor Community name PAsswordClear a password PIng RObustness REsetPOrt port ON/OFF SEcure portSHowCLear Security Configuration Parameter Definitions Managing the Hub Eavesdrop Prevention, must be set to on Configuring Security on a Single PortConfiguring Security on All Twisted-Pair Ports Address Selection Authorized Clearing Security Violation Indicators Showing the Security Configuration STatus SPeed new speed Status Information What It Means To send Network links, see the , TroubleshootingTEstlink 16M will respond with the correct packetPage Following table shows PC connections to the RS-232 port Cables and ConnectorsRecommended Cables Cable Function Cable Type HP Product Number Cables and ConnectorsFollowing table shows network connections to the hub Twisted-Pair Cable for Hub-to-Computer Network Connection Twisted-Pair Cable/Connector Pin-OutsPins 1 and 2 must be a twisted pair Pins 3 and 6 must be a twisted pair Minimum pin-out will function correctly RS-232 Connector and Cable Pin-OutsInstaller for assistance with your cabling requirements Cable pin-out described below RS-232 Modem Cable SignalMinimum Cable Pinout for Ascii Console Connection Hub End MDI-X Twisted-Pair Cable Pin AssignmentsTwisted-Pair Straight-Through Cable Environmental SpecificationsPhysical Electrical Electromagnetic ConnectorsSpecifications Megahertz XJ2288 Pcmcia card modem Modem ConfigurationUS Robotics Courier V.FC/V.34 Supra FAX Practical Peripherals PM288MT IIIntel 14.4EX Communication Between the Hub Network Management Station Network Addressing Globally Assigned IP Network Addresses IPX Addressing for Novell NetWareIP Addresses for IP and Non-IP Networks IPX Addressing Notes Company Name/Address Device IP ConfigurationCountry Bootp Process Using Bootp Definitions of the table entry fields Bootp Table File EntriesPage How Backup Links Work Backup Links Additional Notes Backup LinksLimitations Hub to a Server Examples of Backup LinksHow the Backup Function Works Hub to a Switch Hub can monitor only one link T e G g e s t i o n Configuration/Installation Sequence Configuring a Backup Link Indications of Backup Link Activation Identifying the Backup Link Reactivating the Primary Link Page Understanding Network Security Security Information Security Information How Intruder Prevention WorksHow Eavesdrop Prevention Works Authorized MAC address Assigning the Authorized MAC address Setting Inbound Security with Intruder Prevention Send Alarm Auto Port Disable Setting Outbound Security with Eavesdrop Prevention Security Information Page Mounting Precautions Safety and Regulatory Statements Equipment and should be easily accessible Power PrecautionsTemperature might exceed 45C 113F Settings to configure Grounding Safety Information Tible de causer des dommages à léquipement Informations concernant la sécurité Hinweise zur Sicherheit Considerazioni sulla sicurezza Consideraciones sobre seguridad Safety Information Japanese Canada Regulatory StatementsFCC Class a Statement for U.S.A. Only European Community Declaration of Conformity Index Index Diagnosing with the LEDs … 2-2 diagnostic tests Late collision … 3-13 mounting the hub … LED description … Verifying hub operation … Page J3188-90001