ThinLAN Connections, Installing | HP J3188A guide

Installing the Hub

Installing and Configuring Your Hub

In the following illustration, the first hub is connected to two end nodes and to a second hub. Note the second hub shows Port 16 connecting to a PC, using a straight through cable with the port in the MDI-X position.

Installing the

Straight-

Through Cable from Hub to PCs

Hub attached to Port 16: switch in MDI position and straight-through cable is used.

Up to 100 meters

PC attached to Port 16: switch in MDI-X position and straight- through cable is used.

Hub

ThinLAN Connections

With an HP ThinLAN External Transceiver for 10Base2 networks, you can connect your hub or a stack of hubs to a thin LAN network. The following illustration shows a hub with an HP ThinLAN External Transceiver.

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HP J3188A manual ThinLAN Connections, Installing

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 Connecting Hubs Together Connecting Devices to the HubTwisted-Pair Cascade Connections 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 Troubleshooting Using a Checklist to Diagnose the Hub Using a Checklist to Diagnose the HubProblem Solution LED Operation Hub will automatically recover after Troubleshooting LED OperationDiagnostic Tips Power Coll Testing the Hub Only Hub Maintenance TasksClearing a Password for the Ascii Console Running Connectivity Tests Troubleshooting Hub Maintenance TasksObtaining Firmware Enhancements Managing the Hub Setting up the Ascii Console Remotely, Using Telnet Directly, Using a Serial Cable and a TerminalManaging the Hub 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 When to Use IPconfig IPconfigDIsconnect Following table explains the IP parameters Configuring for Network ManagementUsing Novell NetWare IPX Using IP MAnagers SHow Parameter Default Value Definition Manager Address IP or IPX Receive Alarms? CommandTo end your editing 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 POrt port ON/OFF REsetRObustness SEcure portSHowCLear Security Configuration Parameter Definitions Managing the Hub Configuring Security on All Twisted-Pair Ports Configuring Security on a Single PortEavesdrop Prevention, must be set to on 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 Recommended Cables Cables and ConnectorsFollowing table shows PC connections to the RS-232 port Following table shows network connections to the hub Cables and ConnectorsCable Function Cable Type HP Product Number 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 Minimum Cable Pinout for Ascii Console Connection SignalRS-232 Modem Cable Twisted-Pair Straight-Through Cable Twisted-Pair Cable Pin AssignmentsHub End MDI-X Environmental SpecificationsPhysical Electrical Specifications ConnectorsElectromagnetic US Robotics Courier V.FC/V.34 Modem ConfigurationMegahertz XJ2288 Pcmcia card modem Intel 14.4EX Practical Peripherals PM288MT IISupra FAX 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 Country Device IP ConfigurationCompany Name/Address Bootp Process Using Bootp Definitions of the table entry fields Bootp Table File EntriesPage How Backup Links Work Backup Links Limitations Backup LinksAdditional Notes 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